Which of the following statements are correct for Load bearing structure?I. The carpet area of the upper floor is lesser than the lower floorII. Thickness of the higher-level wall is lesser than the lower levelIII. Load of the structure is borne by the walls onlyIV. It is suitable for Highrise buildings, towers or skyscrapersa)I and II onlyb)II and III onlyc)I, II and III onlyd)I, II, III and IVCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The system of a building comprising of slabs, beams, and load-bearing walls are known as a load-bearing structure.

For such structure, loads from the slab roof or trusses and floors are transmitted through walls to the firm soil below the ground. In load-bearing structures, the wall thickness of the upper floors is lesser than the lower floor. Therefore, the carpet area of higher level is more than the lower level.

Such type of structure is most suited for buildings up to three storeys and a where hard strata of soil is available. It is generally adopted for residential bungalow, tenement, temples, rural buildings, etc.

Answer

Load Bearing Structure

I. The carpet area of the upper floor is lesser than the lower floor
This statement is incorrect. In a load bearing structure, the carpet area of the upper floor is generally equal to or larger than the lower floor. This is because load bearing walls are required to transfer the load from the upper floors to the lower floors. Therefore, the walls need to be thicker and stronger to bear the additional load. As a result, the carpet area of the upper floor may be reduced compared to the lower floor.

II. Thickness of the higher-level wall is lesser than the lower level
This statement is correct. In a load bearing structure, the thickness of the higher-level wall is usually less than the lower level. This is because the load is transferred vertically through the walls, and as the load decreases with each level, the walls can be thinner. Thicker walls are required at the lower levels to bear the maximum load.

III. Load of the structure is borne by the walls only
This statement is correct. In a load bearing structure, the walls bear the majority of the load. The walls transfer the load from the upper floors to the lower floors and finally to the foundation. The walls are designed to be strong enough to carry the load without the need for additional structural elements such as beams or columns.

IV. It is suitable for Highrise buildings, towers or skyscrapers
This statement is incorrect. Load bearing structures are not suitable for high-rise buildings, towers, or skyscrapers. Load bearing structures are more commonly used for low-rise buildings where the number of floors is limited. As the height of the building increases, the load on the lower floors becomes too high for the walls to bear. In high-rise buildings, a frame structure with columns and beams is preferred as it allows for greater flexibility and better load distribution.

Therefore, the correct statements for a load bearing structure are:
- Thickness of the higher-level wall is lesser than the lower level
- Load of the structure is borne by the walls only

Similar Railways Doubts

Top Courses for RailwaysView all

RRB JE for Computer Science Engineering

RRB JE for Civil Engineering

RRB JE for Electrical Engineering

RRB JE Mock Test Series for Mechanical Engineering (ME) 2025

RRB JE for Electronics & Communication Engineering

Top Courses for Railways

Top Courses for Railways

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams