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2) A finite element model is created to simulate the structure and analyze it under different loads. The maximum displacement and stresses increase with increasing load.
3) Taguchi method and ANOVA techniques are used to optimize the design by determining the relationship between dependent and independent variables. The study finds that blast load has a more significant impact on the structure's performance than pressure.
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This document summarizes research on analyzing the structural performance of bridge foundations and piles subjected to seismic loads. A numerical model was developed using ANSYS software to evaluate the behavior of bridge structures and pile foundations made of different materials, including carbon fiber reinforced steel, epoxy fiber reinforced steel, and structural steel. The model subjected the structures to varying seismic loading conditions. Results showed that carbon fiber reinforced structural steel performed better than epoxy fiber reinforced steel and structural steel, with less displacement observed under seismic loads. The objectives of the research were to study the performance of different bridge pile foundation materials and bridge structures under seismic loads and vibrations. The methodology involved modeling the bridge and pile foundations in ANSYS and applying seismic loads to analyze structural
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The document discusses cracks in reinforced concrete bridge piers and abutments. It first provides background on the causes of cracking, including applied loads, restraint from volume changes, and drying shrinkage. It then presents a case study of a bridge exhibiting cracks in the abutments and approaches. The cracks are thought to be caused by movement of the abutments due to issues with surrounding soils. The document outlines various remedial measures that could address abutment movement and cracking, such as soil grouting, concrete jacketing, and epoxy injection. It concludes that abutment movement must be addressed to prevent further deterioration of the bridge structure.
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This document summarizes a study on the effect of active, passive, and design earth pressures on integral abutment bridges due to soil-structure interaction. Integral abutment bridges have rigid connections between their decks and substructures, allowing them to behave as single units under thermal and braking loads. However, the horizontal movements of these bridges' superstructures cause complex interactions with supporting soils. Previous research has found accounting for soil-structure interaction is important to accurately model the behavior of integral bridges. This study aims to better understand these interactions and their effects on integral bridges, as current design codes have limited guidance. It involves analyzing 3D models of integral bridges using finite element software to evaluate the impacts of different earth pressures and foundation
Study and Compare Effect of Active (Ka), Passive (Kp) and Design (K*) Earth P...IRJET Journal
This document summarizes a study on the effect of active, passive, and design earth pressures on integral abutment bridges due to soil-structure interaction. Integral abutment bridges have rigid connections between their decks and substructures, allowing them to behave as single units under thermal and braking loads. However, horizontal movements of the superstructure can cause complex interactions with the soil. The lateral earth pressure increases as the deck expands but the "active stress condition" is reached during deck contraction, increasing bumps at the bridge ends. Repeated cyclic stresses from thermal expansion/contraction can cause soil ratcheting behind the abutments over time. The goal of the study is to better understand these complex soil-structure interactions
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This document summarizes a research paper that analyzes the seismic behavior of a 25-story tall building using a piled raft foundation. Two models of the building are created in ETABS - one with just a raft foundation, and one with a piled raft foundation. The building is analyzed for different seismic zones to compare the seismic performance. Key parameters like story drift, displacement, base shear, modal shapes, periods, and frequencies are compared between the two foundation models in each zone. The piled raft foundation combines the load bearing advantages of piles with the rigidity and load distribution of the raft. This study aims to understand how these two foundation types perform differently under seismic conditions in tall buildings.
PARAMETRIC OPTIMIZATION OF MOBILE TOWER BY VARYING LOADING CONDITIONS WITH DI...IRJET Journal
This document discusses parametric optimization of mobile towers by varying loading conditions with different materials. It aims to model a mobile tower structure, analyze it under varying loads, and optimize the loading parameters by using different materials. The study focuses on analyzing wind loads on lattice steel mast towers using ANSYS software. Different material models and load cases are considered to obtain an optimized tower structure that can safely withstand changing loads. Taguchi method and ANOVA techniques are used to optimize the finite element analysis results. The objectives are to enhance the structure's load bearing capacity and safely transfer loads through the use of complex cross-sectional members and connections.
STRUCTURAL ANALYSIS OF BRIDGES AND PILE FOUNDATION SUBJECTED TO SEISMIC LOADSIRJET Journal
This document summarizes research on analyzing the structural performance of bridge foundations and piles subjected to seismic loads. A numerical model was developed using ANSYS software to evaluate the behavior of bridge structures and pile foundations made of different materials, including carbon fiber reinforced steel, epoxy fiber reinforced steel, and structural steel. The model subjected the structures to varying seismic loading conditions. Results showed that carbon fiber reinforced structural steel performed better than epoxy fiber reinforced steel and structural steel, with less displacement observed under seismic loads. The objectives of the research were to study the performance of different bridge pile foundation materials and bridge structures under seismic loads and vibrations. The methodology involved modeling the bridge and pile foundations in ANSYS and applying seismic loads to analyze structural
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The document discusses cracks in reinforced concrete bridge piers and abutments. It first provides background on the causes of cracking, including applied loads, restraint from volume changes, and drying shrinkage. It then presents a case study of a bridge exhibiting cracks in the abutments and approaches. The cracks are thought to be caused by movement of the abutments due to issues with surrounding soils. The document outlines various remedial measures that could address abutment movement and cracking, such as soil grouting, concrete jacketing, and epoxy injection. It concludes that abutment movement must be addressed to prevent further deterioration of the bridge structure.
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This document discusses retrofitting of an existing failed reinforced concrete column using finite element modeling software. It describes analyzing a 3m floor height residential building in Pune, India using ETABS software. The analysis found a column failing under a total load of 452kN. Retrofitting techniques will be explored using ANSYS to strengthen the column to resist loads up to 500kN. The document reviews various retrofitting methods studied in previous literature and outlines the problem of retrofitting the specific failed column.
SEISMIC ANALYSIS OF TRANSFER SLAB STRUCTURE WITH DIFFERENT GEOMETRYIRJET Journal
This document analyzes the seismic performance of different structural geometries for a 35-story building with a transfer slab system. Four structural models are considered: square, equilateral triangle, circle, and pentagon shapes. The models are analyzed using ETABS software for zone 2 and zone 5 seismic zones. Results show that the triangular structure had the shortest period and was more rigid than other structures. The pentagon structure had the highest base shear while the square and triangle structures had the lowest. Story drift was higher when considering second-order P-Delta effects. Displacement increased by 20% with P-Delta analysis compared to static analysis. The study evaluates parameters like displacement, drift, period, and base shear to determine the best structural
Study and Compare Effect of Active (Ka), Passive (Kp) and Design (K*) Earth P...IRJET Journal
This document summarizes a study on the effect of active, passive, and design earth pressures on integral abutment bridges due to soil-structure interaction. Integral abutment bridges have rigid connections between their decks and substructures, allowing them to behave as single units under thermal and braking loads. However, the horizontal movements of these bridges' superstructures cause complex interactions with supporting soils. Previous research has found accounting for soil-structure interaction is important to accurately model the behavior of integral bridges. This study aims to better understand these interactions and their effects on integral bridges, as current design codes have limited guidance. It involves analyzing 3D models of integral bridges using finite element software to evaluate the impacts of different earth pressures and foundation
Study and Compare Effect of Active (Ka), Passive (Kp) and Design (K*) Earth P...IRJET Journal
This document summarizes a study on the effect of active, passive, and design earth pressures on integral abutment bridges due to soil-structure interaction. Integral abutment bridges have rigid connections between their decks and substructures, allowing them to behave as single units under thermal and braking loads. However, horizontal movements of the superstructure can cause complex interactions with the soil. The lateral earth pressure increases as the deck expands but the "active stress condition" is reached during deck contraction, increasing bumps at the bridge ends. Repeated cyclic stresses from thermal expansion/contraction can cause soil ratcheting behind the abutments over time. The goal of the study is to better understand these complex soil-structure interactions
IRJET- Seismic Behavior of Tall Building using Piled Raft FoundationIRJET Journal
This document summarizes a research paper that analyzes the seismic behavior of a 25-story tall building using a piled raft foundation. Two models of the building are created in ETABS - one with just a raft foundation, and one with a piled raft foundation. The building is analyzed for different seismic zones to compare the seismic performance. Key parameters like story drift, displacement, base shear, modal shapes, periods, and frequencies are compared between the two foundation models in each zone. The piled raft foundation combines the load bearing advantages of piles with the rigidity and load distribution of the raft. This study aims to understand how these two foundation types perform differently under seismic conditions in tall buildings.
PARAMETRIC OPTIMIZATION OF MOBILE TOWER BY VARYING LOADING CONDITIONS WITH DI...IRJET Journal
This document discusses parametric optimization of mobile towers by varying loading conditions with different materials. It aims to model a mobile tower structure, analyze it under varying loads, and optimize the loading parameters by using different materials. The study focuses on analyzing wind loads on lattice steel mast towers using ANSYS software. Different material models and load cases are considered to obtain an optimized tower structure that can safely withstand changing loads. Taguchi method and ANOVA techniques are used to optimize the finite element analysis results. The objectives are to enhance the structure's load bearing capacity and safely transfer loads through the use of complex cross-sectional members and connections.
IRJET- Review on Performance of Polypropylene Band–Retrofitted Masonry: Evalu...IRJET Journal
1) The document discusses a study on the seismic behavior of masonry walls retrofitted with polypropylene bands.
2) Two full-scale masonry wall specimens were tested - an unreinforced control wall and a wall retrofitted with external polypropylene bands.
3) The retrofitted wall exhibited higher load capacity, maximum displacement, and ductility than the unreinforced control wall, demonstrating that polypropylene band retrofitting improves the seismic resistance of unreinforced masonry structures.
A Study on Application of Passive Control Techniques to RC Bridges through No...IRJET Journal
This document discusses a study on applying passive control techniques like tuned mass dampers (TMDs) to reduce vibrations in reinforced concrete (RC) bridges through nonlinear dynamic analysis. 3D models of box girder bridges with different spans were analyzed with and without TMDs using SAP2000 software. TMDs with mass ratios of 2%, 3%, and 4% were considered. Dynamic responses like natural period, base shear, displacements, and forces were compared for bridges with and without TMDs when subjected to ground motion records. Results showed that addition of TMDs decreased the natural frequency of bridges the most for the highest mass ratio of 2%, with decreases of up to 41.23% observed for different bridge
IRJET- Static Analysis of Pile Foundation on Slope TerrainIRJET Journal
This document summarizes a study analyzing the static behavior of a pile foundation on a sloped terrain using PLAXIS software. The study site is the proposed construction of a Shri Saibaba temple in Yedapalli, India, where there is a 30-foot height difference between the ground level and building location. Soil investigations revealed loose soil at the site. Pile foundations were proposed to support the building. A model of the pile foundation was created in PLAXIS, and load-bearing capacity, deformation, stresses and settlements were analyzed. The results found the pile foundation was effective at stabilizing the soil and preventing landslides.
Analysis of Soil-Structure Interaction Mechanisms on Integral Abutment BridgeIRJET Journal
This document analyzes soil-structure interaction mechanisms on integral abutment bridges through 3D finite element modeling. The modeling assesses vertical displacement and bending behavior of pile foundations and main girders in different soil types (dense sand, medium sand, stiff clay, soft clay) under static loads. Results show that pile displacement is within permissible limits in dense and medium sand but exceeds limits in soft clay. Girder displacement is within code limits for all soils except soft clay. Bending moment and stress in pile foundations increase from dense to soft soils. The analysis provides insights into how soil properties influence the structural performance of integral bridges.
IRJET- Comparison of Ductility of M20 and M25 Concrete in Elevated Tank StagingIRJET Journal
This study compares the ductility of M20 and M25 concrete in the staging of an elevated water tank through pushover analysis. The analysis found that M20 concrete has higher ductility than M25 concrete, with a ductility of 3.47 for M20 versus 1.7 for M25. While M25 concrete is stiffer and can take more loads, the use of M20 concrete results in significantly increased ductility of the staging structure with around a 50% reduction in force.
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
A Review on Comparative Analysis of Raft Foundation, Raft with Drop & Pile Ra...IRJET Journal
This document presents a review on the comparative analysis of three foundation systems: raft foundation, raft foundation with drop, and pile raft foundation. It aims to analyze the structural and geotechnical behavior of these foundations under different loading scenarios and soil profiles using advanced analysis software. The analysis focuses on factors like load distribution, stress concentrations, settlement features, and overall structural performance. It is anticipated that the results of this comparative study will provide insights to practitioners on selecting suitable foundation systems for various soil and seismic conditions. The document discusses several research papers on topics like the design of raft foundations for high-rise buildings, parametric studies of piled raft foundations, and comparing the performance of raft, pile, and piled ra
Seismic Analysis of High Rise Building Using Outriggers and Belt- Truss SystemIRJET Journal
This document discusses the seismic analysis of a high-rise building using outrigger and belt-truss systems. It analyzes a 25-story building considering different floor acceleration ratios under earthquake loads. Response spectrum analysis is performed to determine the building's behavior by examining response parameters like lateral displacement and inter-story drift. Outrigger and belt-truss systems are found to improve the building's stiffness and reduce lateral loads compared to a structure without these systems. The document reviews several other studies analyzing different structural configurations and building heights to determine optimal outrigger locations.
“EFFECT OF SOIL STRUCTURE INTERACTION ON GRAVITY RETAINING WALL”IRJET Journal
This document summarizes a study on the effect of soil-structure interaction on a gravity retaining wall. A gravity retaining wall was modeled using ANSYS software, with soil media modeled around and below the wall to simulate field conditions. The wall was analyzed with and without considering soil-structure interaction under static loading. Results showed stresses and deformations varied significantly depending on whether soil-structure interaction was included. Wall height and geometry were also varied, with responses in terms of stress and deformation also exhibiting differences. The goal of the study was to optimize the wall cross-section considering soil-structure interaction effects.
Analysis of stability of rock column between cut & cover Metro Station and NA...IRJET Journal
This document analyzes the stability of the rock column between an underground metro station constructed using the cut-and-cover method and a platform tunnel constructed using the NATM method. It studies the impact of varying the width of the rock column between 2.6m and 5m based on updated geotechnical information. Finite element analysis is conducted to model the soil-structure interaction and evaluate stresses around the tunnel opening to check stability during excavation. The analysis considers parameters like lateral earth pressure coefficients, Mohr-Coulomb soil modeling, water table level, secant pile retaining system geometry and material properties.
PERFORMANCE EVALUATION OF DEEP EXCAVATION UNDER STATIC AND SEISMIC LOAD CONDI...IRJET Journal
The document presents a numerical analysis of a 12m deep excavation supported by an anchored diaphragm wall. A finite element model was created using PLAXIS 2D to model the layered soil stratum and retaining structures. A parametric study was conducted by varying the anchor inclination, surcharge load location, and considering static and dynamic load conditions. The results found that horizontal displacement, bending moment, and shear force in the wall were highest when the surcharge was closest to the excavation line and decreased as the surcharge moved farther away. Dynamic loading produced greater wall response compared to static loading.
Wind Braces & Tie Runners as Mittigating Elements in Industrial Sheds Against...IRJET Journal
I. This study examines the dynamic performance of industrial buildings subject to seismic forces and loads from gantry cranes of varying capacities. It analyzes how wind braces can help reduce displacements.
II. Linear and nonlinear analyses are performed to evaluate base shear, fundamental period, and required strength. Previous studies on seismic performance of precast industrial structures and modeling of gantry cranes using finite element analysis are also reviewed.
III. The influence of gantry crane loads and wind braces on the dynamic response of industrial buildings during earthquakes is examined to improve seismic resistance.
Three Dimensional Non-Linear Seismic Analysis of a Cable Stayed Bridge using ...IRJET Journal
This document summarizes a study that analyzed the dynamic behavior of a cable-stayed bridge using finite element analysis in ANSYS. A 3D model of a cable-stayed bridge was created using beam, shell, and link elements to model the deck, tower, and cables. Modal analysis was performed to determine the natural frequencies and mode shapes. Time history analysis was also conducted using ground motion data to understand the bridge's response under earthquake loads. The results showed the bridge has complex vibration modes due to coupling effects and is more flexible in the vertical direction than transverse or longitudinal directions.
IRJET - Review on Behavior of Composite Column and Post-Tension Flat Slab in ...IRJET Journal
The document summarizes research on the behavior of composite columns and post-tensioned flat slabs in high-rise buildings. Composite columns made of concrete-encased steel have benefits like high strength and ductility. Post-tensioned flat slabs reduce construction time and costs compared to reinforced concrete slabs. Several studies analyzed found that composite columns and post-tensioned flat slabs help reduce lateral displacement, storey drift, and base shear in seismic zones. Post-tensioned flat slabs were also found to be more economical than reinforced concrete slabs. The use of self-compacting concrete and shear walls can further improve the seismic performance of composite column and post-tensioned flat slab structures.
IRJET- Comparative Analysis of RCC Structure and Tube-in-Tube StructureIRJET Journal
The document compares the performance of a reinforced concrete (RCC) structure to a tube-in-tube structure through a parametric study. A 20-story building model was created in STAAD.Pro and ETABS to analyze each structural system. The tube-in-tube structure uses a central reinforced concrete core tube surrounded by perimeter columns and spandrel beams, acting as an outer tube. The study varied column depth, beam depth, and wall thickness to evaluate their effects on story drifts, base shear, and shear lag behavior between the two structural systems. Preliminary results found the column depth had a more prominent impact on the tube action and shear lag performance than other dimensions. Overall, the tube-in-
COMPARITIVE ANALYSIS OF RCC STRUCTURE ON SLOPING GROUND AGAINST SEISMIC LOADI...IRJET Journal
This document analyzes the seismic performance of reinforced concrete structures on sloping ground using fluid viscous dampers, shear walls, and bracings. It models a 10-story building in the software ETABS and analyzes it under response spectrum analysis. The models are compared based on maximum story displacement, drift, and shear. Results show that in the x-direction, the structure with x-bracing performed best in reducing seismic effects compared to the other models that included fluid viscous dampers and shear walls.
IRJET- A Performance Study of High Raise Building with Flat Slab System u...IRJET Journal
This document presents a study on the performance of high-rise buildings with flat slab systems under lateral loads. It analyzes a 20-story building model with a flat slab structural system using computer modeling and analysis software. The study evaluates parameters such as storey displacement, storey drift, and base shear under different seismic zones and soil conditions. The results show increased storey displacement, storey drift, and base shear with increasing seismic zone. Therefore, flat slab structural systems require optimization based on building height, seismic zone, and soil type to safely resist lateral loads from seismic activity and wind.
Structural Design and Rehabilitation of Reinforced Concrete StructureIJERA Editor
Effective rehabilitation scheme for failed structure demands methodical analysis of various
causes of failure and intended service loads and other functional details, The actual study under deliberation is
the best example of rehabilitation Structural element – Basement RCC raft, failed to sustain uplift due to ground
water table. This paper dealt with the rehabilitation of basement RCC raft foundation considering various design
aspects like uplift due to ground water table, sub-soil properties and restriction on depth of raft to suffice
available headroom for intended use.
AN EXPERIMENTAL STUDY ON CFDST COLUMN UNDER AXIAL LOADINGIRJET Journal
The document presents an experimental study on Circular-Filled Double-Skin Tubular (CFDST) columns under axial loading. CFDST columns with circular hollow section inner and outer tubes are tested to investigate their behavior and properties. The testing involves subjecting CFDST column specimens to axial compression loads using a Universal Testing Machine to determine load-carrying capacity, deformation patterns, and failure mechanisms. Results from the experimental testing are then validated using finite element analysis in ANSYS software. The study finds reasonable agreement between computational predictions and experimental results, providing validation of the computational models.
STUDIES OF ANALYSIS AND DESIGN FOR MULTI-STORIES STRUCTURES WITH TRANSFER PLA...IRJET Journal
This document summarizes a study analyzing and designing a multi-story building with a transfer plate using ETABS software. Key points:
- Transfer plates are commonly used in high-rise buildings to allow more open space on lower floors for parking while allowing closely spaced columns above for residential floors.
- The study models a building with 6 parking floors and 15 residential floors above a transfer plate located at the 6th level.
- Global analysis in ETABS is used to analyze lateral responses, displacement, story stiffness, and plate bending moments to verify design. Results like story displacements and period ratios are within code limits.
- Plate responses like maximum bending moments are compared to separate plate analysis, finding agreement.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
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This document summarizes a study that analyzed the dynamic behavior of a cable-stayed bridge using finite element analysis in ANSYS. A 3D model of a cable-stayed bridge was created using beam, shell, and link elements to model the deck, tower, and cables. Modal analysis was performed to determine the natural frequencies and mode shapes. Time history analysis was also conducted using ground motion data to understand the bridge's response under earthquake loads. The results showed the bridge has complex vibration modes due to coupling effects and is more flexible in the vertical direction than transverse or longitudinal directions.
IRJET - Review on Behavior of Composite Column and Post-Tension Flat Slab in ...IRJET Journal
The document summarizes research on the behavior of composite columns and post-tensioned flat slabs in high-rise buildings. Composite columns made of concrete-encased steel have benefits like high strength and ductility. Post-tensioned flat slabs reduce construction time and costs compared to reinforced concrete slabs. Several studies analyzed found that composite columns and post-tensioned flat slabs help reduce lateral displacement, storey drift, and base shear in seismic zones. Post-tensioned flat slabs were also found to be more economical than reinforced concrete slabs. The use of self-compacting concrete and shear walls can further improve the seismic performance of composite column and post-tensioned flat slab structures.
IRJET- Comparative Analysis of RCC Structure and Tube-in-Tube StructureIRJET Journal
The document compares the performance of a reinforced concrete (RCC) structure to a tube-in-tube structure through a parametric study. A 20-story building model was created in STAAD.Pro and ETABS to analyze each structural system. The tube-in-tube structure uses a central reinforced concrete core tube surrounded by perimeter columns and spandrel beams, acting as an outer tube. The study varied column depth, beam depth, and wall thickness to evaluate their effects on story drifts, base shear, and shear lag behavior between the two structural systems. Preliminary results found the column depth had a more prominent impact on the tube action and shear lag performance than other dimensions. Overall, the tube-in-
COMPARITIVE ANALYSIS OF RCC STRUCTURE ON SLOPING GROUND AGAINST SEISMIC LOADI...IRJET Journal
This document analyzes the seismic performance of reinforced concrete structures on sloping ground using fluid viscous dampers, shear walls, and bracings. It models a 10-story building in the software ETABS and analyzes it under response spectrum analysis. The models are compared based on maximum story displacement, drift, and shear. Results show that in the x-direction, the structure with x-bracing performed best in reducing seismic effects compared to the other models that included fluid viscous dampers and shear walls.
IRJET- A Performance Study of High Raise Building with Flat Slab System u...IRJET Journal
This document presents a study on the performance of high-rise buildings with flat slab systems under lateral loads. It analyzes a 20-story building model with a flat slab structural system using computer modeling and analysis software. The study evaluates parameters such as storey displacement, storey drift, and base shear under different seismic zones and soil conditions. The results show increased storey displacement, storey drift, and base shear with increasing seismic zone. Therefore, flat slab structural systems require optimization based on building height, seismic zone, and soil type to safely resist lateral loads from seismic activity and wind.
Structural Design and Rehabilitation of Reinforced Concrete StructureIJERA Editor
Effective rehabilitation scheme for failed structure demands methodical analysis of various
causes of failure and intended service loads and other functional details, The actual study under deliberation is
the best example of rehabilitation Structural element – Basement RCC raft, failed to sustain uplift due to ground
water table. This paper dealt with the rehabilitation of basement RCC raft foundation considering various design
aspects like uplift due to ground water table, sub-soil properties and restriction on depth of raft to suffice
available headroom for intended use.
AN EXPERIMENTAL STUDY ON CFDST COLUMN UNDER AXIAL LOADINGIRJET Journal
The document presents an experimental study on Circular-Filled Double-Skin Tubular (CFDST) columns under axial loading. CFDST columns with circular hollow section inner and outer tubes are tested to investigate their behavior and properties. The testing involves subjecting CFDST column specimens to axial compression loads using a Universal Testing Machine to determine load-carrying capacity, deformation patterns, and failure mechanisms. Results from the experimental testing are then validated using finite element analysis in ANSYS software. The study finds reasonable agreement between computational predictions and experimental results, providing validation of the computational models.
STUDIES OF ANALYSIS AND DESIGN FOR MULTI-STORIES STRUCTURES WITH TRANSFER PLA...IRJET Journal
This document summarizes a study analyzing and designing a multi-story building with a transfer plate using ETABS software. Key points:
- Transfer plates are commonly used in high-rise buildings to allow more open space on lower floors for parking while allowing closely spaced columns above for residential floors.
- The study models a building with 6 parking floors and 15 residential floors above a transfer plate located at the 6th level.
- Global analysis in ETABS is used to analyze lateral responses, displacement, story stiffness, and plate bending moments to verify design. Results like story displacements and period ratios are within code limits.
- Plate responses like maximum bending moments are compared to separate plate analysis, finding agreement.
Similar to Numerical simulation and optimization of pile design (20)
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Solving Linear Differential Equations with Constant CoefficientsIRJET Journal
1) The document discusses methods for finding the solutions to linear differential equations with constant coefficients. It defines such an equation and explains that the complete solution is the combination of the complementary function (C.F.) and particular integral (P.I.).
2) Various methods are presented for determining the C.F. depending on whether the roots of the auxiliary equation are real, imaginary, repeated, etc.
3) Rules are provided for obtaining the P.I. based on the type of function involved (exponential, trigonometric, power, etc.). Examples are worked through to demonstrate the full solution process.
Sachpazis_Consolidation Settlement Calculation Program-The Python Code and th...Dr.Costas Sachpazis
Consolidation Settlement Calculation Program-The Python Code
By Professor Dr. Costas Sachpazis, Civil Engineer & Geologist
This program calculates the consolidation settlement for a foundation based on soil layer properties and foundation data. It allows users to input multiple soil layers and foundation characteristics to determine the total settlement.
We have designed & manufacture the Lubi Valves LBF series type of Butterfly Valves for General Utility Water applications as well as for HVAC applications.
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Online train ticket booking system project.pdfKamal Acharya
Rail transport is one of the important modes of transport in India. Now a days we
see that there are railways that are present for the long as well as short distance
travelling which makes the life of the people easier. When compared to other
means of transport, a railway is the cheapest means of transport. The maintenance
of the railway database also plays a major role in the smooth running of this
system. The Online Train Ticket Management System will help in reserving the
tickets of the railways to travel from a particular source to the destination.