Column splices design

•

0 likes•362 views

This document discusses two column splice design examples. The first example covers column splice design while the second example also focuses on column splice design. Both examples provide information on designing column splices for structural columns.

This paper presents the effectiveness and assessment of the potential of the vacuum consolidation using Prefabricated Vertical Drain, in Mumbai marine clay, as more economical and effective method of consolidation. Large 3-D consolidation cell was designed to carry out laboratory experiments on the reconstituted soft marine clay from the project site at New Mumbai, western part of the India. Various combinations of the surcharge and vacuum loading with PVD were tested and examined. The study showed that method is feasible and save significant time for the consolidation process in turn saving in construction time of foundation on soft marine clay. The strength and stability of the clay also enhances greatly. This paper examines the applicability of Asaoka method to predict settlement of Mumbai Marine clay. An overview is also provided to some geotechnical properties such as density, moisture content, void ratio and shear strength which are predominantly affected during the vacuum preloading system. The settlement analysis was conducted using conventional solution by Hansbo and Asaoka.. The hydraulic conductivity of reconstituted specimen was back calculated. The Back calculated coefficient of radial consolidation was observed in the range of 1.45 to 2.27 m2/year and ratio of ch/cv.odeo was found to be 1.5 to 2. The addition of vacuum pressure tends to increase horizontal coefficient of consolidation leads to shorten the preloading time t by 15 to 80 % depending on the vacuum preload magnitude. The attempt is also made to find out kh/ks values for the selected soil specimen. It was observed that kh/ks value for Mumbai marine clay is about 1.50.

STRENGTH OF REINFORCED CONCRETE CORBELS – A PARAMETRIC STUDY

IAEME Publication

Corbels are cantilever with small shear span to depth ratio (a/d) projected from columns or walls to support precast members like beams, girders or dapped end beams. Shear friction (SF) method is used to analyze and design reinforced concrete (RC) corbels. Because of the small value of a/d, corbels are treated as deep beams. Using strut and tie modeling (STM), they can be analyzed. In both SF and STM, there are many parameters that affect the behavior of the corbels such as a/d, width (b), compressive strength of concrete (f'c), yield strength of reinforcement (fy), and horizontal to vertical load ratio (H/V). In the current study, according to ACI 318-14 provisions, the effect of these parameters were investigated using both SF and STM. It was found that the shear capacity increases by about 32.6%, 26.3% and 31.2% for SF and by about 54.1%, 50.4% and 30.9% for STM with increasing width, compressive strength, and yield strength by about (100-300) %, (15-35) % and (400-600) %, respectively. Whereas, shear capacity decreases by about 58.54% and 48.7% for SF and about 59.4% and 33.2% for STM with increasing a/d and H/V by about (0.1-1.9)% and (0-1)%, respectively. It was also seen that the results obtained by STM is more reliable t

F rmas+apostila

DandaEDF

Este documento fornece recomendações para a produção de estruturas de concreto armado em edifícios. Ele discute os sistemas de fôrmas, a montagem da armadura, e os procedimentos para a concretagem, incluindo a montagem das fôrmas, colocação da armadura, lançamento do concreto e desforma. O documento também aborda a classificação das estruturas de edifícios de acordo com sua concepção estrutural, intensidade de uso, processo de produção dos elementos resistentes,

Modeling and Design of Bridge Super Structure and Sub Structure

AIT Solutions

This document discusses modeling and analysis techniques for bridge superstructures and substructures. It covers modeling bridge decks using various element types including beam, grid, plate-shell, and solid models. It also discusses modeling bridge piers and foundations using solid elements, beam elements, or springs to represent soil-structure interaction. The document emphasizes the importance of modeling both superstructure and substructure together to accurately capture their interaction, and discusses challenges like modeling bearings and soil.

Unit IV composite beams and continuous beams

Selvakumar Palanisamy

Design for Short Axially Loaded Columns ACI318

Abdullah Khair

This document discusses the design of columns. It begins by defining columns and classifying them as short or long based on their slenderness ratio. Columns can be reinforced with ties or a spiral. Equations are provided for calculating the nominal axial capacity of columns based on the concrete compressive strength and steel reinforcement area. Minimum requirements are specified for reinforcement ratios, number of bars, concrete cover, and lateral tie or spiral spacing. Spirally reinforced columns can develop higher strength due to concrete confinement by the spiral. Design of the spiral pitch is discussed based on providing equivalent confining pressure.

Eurocodes design of members

yuri30

This document provides an overview of the design of steel structural members according to Eurocode standards, including columns, beams, and beam-columns. It discusses the main internal forces on members, the classification of cross-sections, and the approaches to checking the resistance of cross-sections and buckling resistance of members. It also provides an example calculation for the design of a steel column member under axial compression.

ANALYSIS OF FRAMES USING SLOPE DEFLECTION METHOD

Sagar Kaptan

1. The document discusses the behavior of reinforced concrete sections subjected to combined flexural moment and axial force. 2. It describes the unified theory for analyzing concrete design, which can develop a single theory to determine stress resultants for various concrete member types, design methods, and codes. 3. The theory unifies the analysis of beams, columns, reinforced concrete, pre-stressed concrete, and different cross-section types by incorporating various stress-strain models.

ANALYSIS AND DESIGN OF RAILWAY STEEL AND COCRETE BRIDGE & NON DESTRUCTIVE TE...

GLA University

sand drain for consolidation settlement

subhamkabu123

Unit I Losses of prestress and deflection

Selvakumar Palanisamy

Column design.ppt

Samirsinh Parmar

Unit 3 flexibility-anujajape

anujajape

This document discusses the flexibility matrix method for analyzing statically indeterminate structures. It begins by introducing the flexibility matrix method and its formulation. The flexibility matrix relates displacements in a structure to applied forces. Examples are provided to demonstrate applying the flexibility matrix method to analyze pin-jointed plane trusses, continuous beams, and rigid jointed portal frames involving 3 or fewer unknowns. The steps of the method are outlined and illustrated through worked examples.

Machine Foundation Design

VARANASI RAMA RAO

The document discusses machine foundations used in the oil and gas industry. It begins by introducing the different types of machines, such as centrifugal and reciprocating machines, and how they are classified based on speed. It then discusses the various types of foundations used to support these machines, including block foundations and frame foundations. The document outlines the inputs needed for foundation design, which include project specifications, soil parameters, and machine details from the vendor. It describes the process of analyzing machine foundations, including dynamic and static analyses. Key aspects like natural frequencies, displacements, and strength are evaluated.

CE 72.52 - Lecture 7 - Strut and Tie Models

Fawad Najam

The document discusses the strut-and-tie approach for analyzing concrete structures. It begins with background concepts such as Bernoulli's hypothesis, St. Venant's principle, and the lower bound theorem of plasticity. It then discusses how axial stresses, shear stresses, and the interaction of stresses affect concrete sections. The document outlines the ACI approach to shear-torsion design and provides equations from ACI 318 for calculating the concrete shear capacity. It introduces the concept of modeling concrete as a truss system and compares this to flexural behavior in beams. The strut-and-tie method is presented as a unified approach for considering all load effects. Guidelines are provided for developing an appropriate strut-and-tie model and

Balanced Cantilever Bridge

Jeelkumar Patel

The balanced cantilever method is used to construct bridges with spans between 50-250m. It involves erecting segments on each side of the pier in a balanced sequence to minimize load imbalance and bending in the piers. This method is advantageous for long spans, marine environments, and where access under the deck is difficult. The cantilever lengths are typically 0.20-0.30 of the main span. Segment construction proceeds until the midspan point is reached, where the balanced pair is closed. The key advantages are single-sided support during construction and uniform construction. However, it is also very expensive and complicated to construct.

ACI 318-19 Ingles.pdf

fjimmy

This document provides an overview of ACI 318-19, the Building Code Requirements for Structural Concrete, and the accompanying ACI 318R-19 Commentary. It discusses the purpose and scope of the code, as well as how it was developed through an ANSI consensus process. Key points include that the code provides minimum requirements for structural concrete design and construction, and is intended to be adopted by legal jurisdictions as part of their building codes. The commentary provides supplementary information to help explain and interpret the code requirements.

CE 72.52 - Lecture 5 - Column Design

Fawad Najam

The document discusses the design of columns in concrete structures. It covers several topics related to column design including: member strength and capacity versus section capacity, moment magnification, issues regarding slenderness effects, P-Delta analysis, and effective design considerations. The key steps in column design are outlined, including determining loads, geometry, materials, checking slenderness, computing design moments and capacities, and iterating the design as needed. Factors that influence column capacity such as slenderness, bracing, and effective length and stiffness are also described.

International Bridge Design Standards and Approaches

AIT Solutions

Aci 355.4 m

Henry Vargas Céspedes

This document provides guidelines for testing and qualifying post-installed adhesive anchors for use in concrete structures. It outlines test procedures to determine anchor performance under various conditions, including cracked and uncracked concrete, elevated temperatures, seismic loads, and more. Anchors are classified based on test results into performance categories that correspond to appropriate design standards. The testing is intended to establish characteristic anchor capacities, evaluate reliability and sensitivity to installation and environmental factors, and prescribe quality control requirements. Special inspection of anchor installation is mandated based on test outcomes.

Analysis and design of 15 storey office and

Masroor Alam

This project involves the analysis and design of a 15-story office and commercial building using ETABS software. Key aspects of the project include modeling the building geometrically and with materials, running various load combinations and analysis types, designing structural elements like beams, columns, slabs, and shear walls, and evaluating serviceability requirements. The project demonstrates the modeling, analysis, and design process according to applicable codes.

Aashto design

WALTER HUGO MELGAREJO VELASQUEZ

This document provides an overview of pavement design methods and the 1993 AASHTO Guide for pavement design of both flexible and rigid pavements. It summarizes: - The objectives and inputs considered in pavement design - The empirical and mechanistic-empirical approaches used in the AASHTO Guide - The key equations, parameters, and design process for both flexible and rigid pavement structures It describes how the AASHTO Guide is based on predicting the decrease in serviceability over time under traffic loading using reliability concepts. The design process involves calculating the structural number for flexible pavements or slab thickness for rigid pavements based on traffic, materials properties, and reliability factors.

WIND LOAD ON BUILDING AND STR.pdf

Sachin Kumbhar

This document provides the code and commentary for IS 875 (Part 3), which establishes wind load provisions for building design in India. It outlines the history and revisions of the standard. The standard aims to ensure structural safety of buildings by establishing minimum wind loads to consider in design. It provides wind speed maps, modification factors for terrain and structure size, force coefficients, and procedures for evaluating dynamic response of flexible structures to wind. The commentary provides context and explanations for various clauses in the code.

Class 7 Consolidation Test ( Geotechnical Engineering )

Hossam Shafiq I

This document provides an overview of a geotechnical engineering laboratory class on conducting a consolidation test on cohesive soil. The consolidation test is used to determine key soil properties like preconsolidation stress, compression index, recompression index, and coefficient of consolidation. The procedure involves placing a saturated soil sample in a consolidometer, applying incremental loads, and measuring the change in height over time to generate consolidation curves. Students will perform the test, calculate soil properties from the results, and include 10 plots and calculations in a laboratory report.

Manual for Detailing Reinforced Concrete Structures to EC2

0984

Detailing is an essential part of the design process. This thorough reference guide for the design of reinforced concrete structures is largely based on Eurocode 2 (EC2), plus other European design standards such as Eurocode 8 (EC8), where appropriate. With its large format, double-page spread layout, this book systematically details 213 structural elements. These have been carefully selected by José Calavera to cover relevant elements used in practice. Each element is presented with a whole-page annotated model along with commentary and recommendations for the element concerned, as well as a summary of the appropriate Eurocode legislation with reference to further standards and literature. The book also comes with a CD-ROM containing AutoCAD files of all of the models, which can be directly developed and adapted for specific designs. Its accessible and practical format makes the book an ideal handbook for professional engineers working with reinforced concrete, as well as for students who are training to become designers of concrete structures.

SCC

Salman Mukkhi

This document describes a study on self-compacting concrete (SCC) conducted by students Salman Mukkhi, Dinesh Gowda, and Khan Maqsud for their civil engineering project at Rizvi College of Engineering, Mumbai, India. It provides background on SCC, outlines the objectives and scope of the study, and presents the table of contents for their report which includes chapters on literature review, mix design, testing methods, case study, and conclusions. The study aimed to evaluate the properties and performance of SCC.

Structural Design of Bridges

AIT Solutions

Site layout cpm module4

Column splices design

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

More from ahsanrabbani

More from ahsanrabbani (20)

Recently uploaded

Recently uploaded (20)

Column splices design