Rcc Roof Beam Design

Design of doubly reinforced beam flexure.

Rcc roof beam design.

Limit state of collapse shear. Rcc beams are cast in cement concrete reinforced with steel bars. Design for shear contd pdf unavailable. Construction of rcc design from start to end in step by step manner.

Secondly assume reinforcement area then calculate cross section sizes. Determination of loads and moments on rcc lintel beam the triangular design load coming over the lintel beam can be calculated by the formula. Firstly begin the design by selecting depth and width of the beam then compute reinforcement area. 2 thick brick tile.

Design the roof slab beam and column of house given in figure 1. Assume 50 ksi steel. Here we have a wood framed gable roof. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

Floor beam span tables of residential structural design we will now look at roof rafter and beam design. For beams the concrete only works in compression over a rectangular stress block above the n a. Beams resist compression and tensile forces and add rigidity to the structure. The design of concrete beam includes the estimation of cross section dimension and reinforcement area to resist applied loads.

Design of doubly reinforced beam flexure ii. Steel yield strength fy 40 ksi. Let s consider a basic gable wood roof framing design. Continuing on from part 3.

Beams generally carry vertical gravitational forces but can also be used to carry horizontal loads i e loads due to an earthquake or wind. Reinforced concrete beam members strength design for beams sstrength design method is similar to lrfd. Slabs s1 and s2 to be designed. From elastic calculation and the.

Design of steel structures prof. There is a nominal strength that is reduced by a factor which must exceed the factored design stress. The thickness of the masonry is given by t and rho is the density of masonry i e. Design of doubly reinforced beam flexure i.

There are two approaches for the design of beams. Varma example 2 1 determine the elastic section modulus s plastic section modulus z yield moment my and the plastic moment mp of the cross section shown below what is the design moment for the beam cross section.