Concrete Frame Construction: The Key to Strong Structures

Why must beams be closely spaced in slab and beam concrete frames?

a. The slab is precast.

b. The slab uses lower grade concrete.

c. The slab is thin and requires more support.

d. The slab is heavy and requires more support.

Answer:

In slab and beam concrete frames, the beams must be closely spaced because the slab is thin and requires more support.

Slab and beam concrete frames are essential components of construction that provide strength and stability to structures. Beams play a vital role in distributing the weight of the slab evenly and offering the necessary support. When it comes to slab and beam concrete frames, the spacing of the beams is crucial for ensuring the structural integrity of the building.

The reason why beams must be closely spaced in slab and beam concrete frames is that the slab is thin and requires more support. The concrete slab, while serving as a flat surface for the floor, is not designed to bear heavy loads on its own. Therefore, the beams need to be positioned close together to evenly distribute the weight of the slab and prevent any sagging or structural issues.

It's important to note that using lower grade concrete or precasting the slab does not directly impact the spacing of beams in a slab and beam concrete frame. The key factor here is the need to provide sufficient support for the thin, weight-bearing slab.

Understanding the importance of beam spacing in slab and beam concrete frames is essential for constructing safe and durable buildings. By ensuring that the beams are closely spaced, construction professionals can create strong structures that can withstand the test of time.