Category: Arches and Lintels

Grade beams are provided in between isolated footings. Thus under reamed piles and column on isolated footing are connected by grade beams and then the wall is constructed over it. These beams are stronger than the plinth beams. The recommended minimum depth of grade beam is 150 mm and minimum three numbers of 8 mm…

Plinth beams are constructed at plinth level in load-bearing wall for uniform load distribution and to even out settlement of buildings. They also allow to provide Damp Proof course at this level. Such beams are very much helpful to buildings in seismic areas. Similar types of beams are provided at lintel level and roof level.…

Two types of beams, viz., plinth beam and grade beam are constructed in walls for load distribution which are discussed below.

Reinforced brick lintels are used in certain cases. In such cases, bars are provided longitudinally in between the vertical joints and extending from joint to joint. Further, to resist the vertical shear additional 6 mm diameter steel stirrups may be used.

Reinforced cement concrete lintels have practically replaced all other materials for the lintels. The RCC lintels have plenty of advantages over other materials as stated below. A concrete mix of 1:2:4 with mild steel reinforcement is usually adopted. Precast RCC lintels are preferred for a span of 2 m. While laying precast RCC units, special…

Rolled Steel Joints (RSJs) are used individually or embedded in concrete. Particularly for large openings and to support heavy loads, embedded RJS lintels are preferred. These lintels are also called as bressummers (Fig. 19.10). For light loadings and short spans steel angles or channel sections in concrete are used. For large spans and heavy loads, built-up sections…

Brick lintels are used for short spans up to 1 m with light loadings. Brick lintels generally consist of bricks laid on end points or edges (Fig. 19.9). Figure 19.9 Brick lintel Brick lintels are constructed over temporary wooden supports. Bricks with frogs are generally preferred as they form juggles when bounded. Such construction possesses more…

Basically stone lintels are preferred in places where stone is available in abundance. Further, stone lintels are to be adopted in places where stone masonry is used and in buildings where stone facing is used. Stone lintels consist of slabs of stones which may be one or more pieces. Stone lintels are not recommended for…

Wooden lintels are the oldest type of lintels. It is even now used in areas where timber is abundantly available. However, the risk of using wooden lintels is that they are susceptible to catch fire and liable to decay by rot or termite. Single piece of timber is used for smaller spans. For larger spans,…

Based on the type of material used, lintels are classified as follows: See this Next Lecture Step by Step=>