Rcc Roof Slab Extension

It s better not to extend.

Rcc roof slab extension.

This requires joining the old rcc roof to the new one the details are 1 the frontage is about 80 feet accross the wall at the edge is 9 inch thick. Numecal for rcc roof slab steel calculation. Let the shorter span has provided the main rod and longer span has provided distribution rod. Roof on masonry wall and projecting outside the building.

Beside this the slab has following information for main bars length of on rod 7 meter diameter 12 mm. The design of the upper storey extension was a lightweight strut frame structure and after calculations were undertaken it was shown that the slab could not sustain the additional live load. Which is ruling the slab thickness or depth. In this video following points are explained about rcc slab 1 minimum reinforcement rebar in slab according to gross cross section area 2 what should be the.

The construction of the original building consisted of a reinforced concrete frame with cast in situ trough floors. Your slab strength reduces on breaking a portion to attach new part. Q the length and breadth of slab is 10 meter and 7 meter respectively. The projecting portion of the slab is cantilever with free support on the masonry wall.

Due to the structural condition the slab will have negative bending moment causing tension at the support on top. So structural point of view its not good for rcc slab 2. 2 the construction uses rcc pillars. Before expanding an existing rcc slab first you have to check the reinforcement ratio used in the slab because a slab is designed on basically two parameters the crushing strength of concrete i e.

Hf the area of steel or the steel per square foot. You get leakage problems during rain due to formation of cold joint. Precautions to be taken during construction of r c c.