Rcc Roof Beam Design

Design of doubly reinforced beam flexure.

Rcc roof beam design.

The thickness of the masonry is given by t and rho is the density of masonry i e. There is a nominal strength that is reduced by a factor which must exceed the factored design stress. Design of doubly reinforced beam flexure i. Let s consider a basic gable wood roof framing design.

Concrete compressive strength fc 3 ksi. Continuing on from part 3. Slabs s1 and s2 to be designed. Design of doubly reinforced beam flexure ii.

Here we have a wood framed gable roof. Steel yield strength fy 40 ksi. Limit state of collapse shear. Secondly assume reinforcement area then calculate cross section sizes.

Design the roof slab beam and column of house given in figure 1. For beams the concrete only works in compression over a rectangular stress block above the n a. Determination of loads and moments on rcc lintel beam the triangular design load coming over the lintel beam can be calculated by the formula. Beams generally carry vertical gravitational forces but can also be used to carry horizontal loads i e loads due to an earthquake or wind.

Here l ef is the effective span. Assume 50 ksi steel. The design of concrete beam includes the estimation of cross section dimension and reinforcement area to resist applied loads. Beams resist compression and tensile forces and add rigidity to the structure.

Design of steel structures prof. Live load 40 psf figure 1. Rcc beams are cast in cement concrete reinforced with steel bars. There are two approaches for the design of beams.

2 thick brick tile. Construction of rcc design from start to end in step by step manner. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.

Reinforced concrete beam members strength design for beams sstrength design method is similar to lrfd. 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.