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Sanjivani Rural Education Society's
Sanjivani College of Engineering, Kopargaon
-Department of Civil Engineering-
By
Mr. Sameer shaikh (Assistant Professor)
Mail ID- shaikhsameercivil@sanjivani.org.in
LINTEL:- INTRODUCTION
• A lintel is defined as a horizontal structural member which
is placed across the opening.
• A lintel is thus a sort of beam, the width of which is equal
to the width of the wall, and the ends of which are built
into the wall.
• The bearing of lintel should be the minimum of the
following:
(1) 10cm
(2) Height of lintel.
Classification of Lintel
Lintels are classified into the following types according to the materials
of their construction:
(1) Timber lintels
(2) Stone lintels
(3) Brick lintels
(4) Steel lintels
(5) Reinforced cement concrete lintels
 Timber Lintels:-
• Timber lintels are oldest type of lintels, though they are not commonly
used now-a-days, except in hilly areas.
• Timber lintels are relatively costlier, structurally weak and vulnerable to fire.
• They are also liable to decay if not properly ventilated.
 Stone Lintels:-
• Stone lintels are the most common types. specially
where stone is abundantly available.
• A stone lintel consists of a simple stone slab of
greater thickness.
• Stone lintels can also be provided over openings in
brick walls.
• Dressed stone lintels give good architectural
appearance.
• Stone lintels may be used in the form of either one
 Brick Lintels:-
• Brick lintels are not structurally strong and they are
used only when the opening is small (less than 1m) and
loads are light.
• A brick lintel consists of bricks placed on end or edge.
• The depth of brick lintel varies from 10 to 20 cm,
depending upon the span.
• It is constructed over temporary wooden centering.
• The bricks with frogs are more suitable for the
construction of lintel since the frogs, when filled with
mortar, form joggles which increases the shear
 Steel Lintels:-
• Steel lintels are provided where the opening is large
and where the super-imposed loads are also heavy.
• It consists of rolled steel joints or channel sections
either used singly or in combination of two or three
units.
• When used singly, the steel joist is either embedded
in concrete, or cladded with stone facing, so as to
increase its width to match with the width of the
wall.
• When more than one units are placed side by side
 Reinforced Cement Concrete Lintels:-
• Reinforced cement concrete lintels have replaced practically all other types
of lintels because of their strength rigidity, fire resistance, economy and
ease in construction.
• These can be used on any span.
• Its width is kept equal to the width of the wall.
• The depth of R.C.C. lintel and the reinforcement depends upon the span
and the magnitude of loading.
• Longitudinal reinforcement, consisting of mild steel bars, are provided near
the bottom of lintel to take up tensile stresses.
• Shear stirrups are provided to resist transverse shear.
• R.C.C. lintels are also available as pre-cast units.
• For cast-in-situ units, which are quite common, formwork is required for
construction.
Lintel with chajja projection Wooden lintel
Ventilators :
• Ventilators are provided for the purpose of ventilation in the room.
• These are small windows provided at a greater height
than windows nearer to roof level, generally about
30 to 50cm below roof level.
• Horizontally pivoted shutters are provided for the ventilators.
• The shutters can be opened or closed by means of two
cords one attached to the top rail and other to the bottom rail of the shutter.

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Details of lintels

  • 1. Sanjivani Rural Education Society's Sanjivani College of Engineering, Kopargaon -Department of Civil Engineering- By Mr. Sameer shaikh (Assistant Professor) Mail ID- shaikhsameercivil@sanjivani.org.in
  • 2. LINTEL:- INTRODUCTION • A lintel is defined as a horizontal structural member which is placed across the opening. • A lintel is thus a sort of beam, the width of which is equal to the width of the wall, and the ends of which are built into the wall. • The bearing of lintel should be the minimum of the following: (1) 10cm (2) Height of lintel.
  • 3. Classification of Lintel Lintels are classified into the following types according to the materials of their construction: (1) Timber lintels (2) Stone lintels (3) Brick lintels (4) Steel lintels (5) Reinforced cement concrete lintels
  • 4.  Timber Lintels:- • Timber lintels are oldest type of lintels, though they are not commonly used now-a-days, except in hilly areas. • Timber lintels are relatively costlier, structurally weak and vulnerable to fire. • They are also liable to decay if not properly ventilated.
  • 5.  Stone Lintels:- • Stone lintels are the most common types. specially where stone is abundantly available. • A stone lintel consists of a simple stone slab of greater thickness. • Stone lintels can also be provided over openings in brick walls. • Dressed stone lintels give good architectural appearance. • Stone lintels may be used in the form of either one
  • 6.  Brick Lintels:- • Brick lintels are not structurally strong and they are used only when the opening is small (less than 1m) and loads are light. • A brick lintel consists of bricks placed on end or edge. • The depth of brick lintel varies from 10 to 20 cm, depending upon the span. • It is constructed over temporary wooden centering. • The bricks with frogs are more suitable for the construction of lintel since the frogs, when filled with mortar, form joggles which increases the shear
  • 7.
  • 8.  Steel Lintels:- • Steel lintels are provided where the opening is large and where the super-imposed loads are also heavy. • It consists of rolled steel joints or channel sections either used singly or in combination of two or three units. • When used singly, the steel joist is either embedded in concrete, or cladded with stone facing, so as to increase its width to match with the width of the wall. • When more than one units are placed side by side
  • 9.  Reinforced Cement Concrete Lintels:- • Reinforced cement concrete lintels have replaced practically all other types of lintels because of their strength rigidity, fire resistance, economy and ease in construction. • These can be used on any span. • Its width is kept equal to the width of the wall. • The depth of R.C.C. lintel and the reinforcement depends upon the span and the magnitude of loading. • Longitudinal reinforcement, consisting of mild steel bars, are provided near the bottom of lintel to take up tensile stresses.
  • 10. • Shear stirrups are provided to resist transverse shear. • R.C.C. lintels are also available as pre-cast units. • For cast-in-situ units, which are quite common, formwork is required for construction.
  • 11. Lintel with chajja projection Wooden lintel
  • 12. Ventilators : • Ventilators are provided for the purpose of ventilation in the room. • These are small windows provided at a greater height than windows nearer to roof level, generally about 30 to 50cm below roof level. • Horizontally pivoted shutters are provided for the ventilators. • The shutters can be opened or closed by means of two cords one attached to the top rail and other to the bottom rail of the shutter.
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