Q. With reference to unreinforced masonry(URM), consider the following statements;
1.URM buildings have been widely adopted due to inexpensiveness and usage of locally available construction materials.
2.URM buildings do not damage or collapse during an earthquake.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A

Statement 1 is correct: Historically, most buildings technically called unreinforced masonry(URM) were not built using modern building codes.

URM buildings have traditionally been widely adopted worldwide due to inexpensive and locally available construction materials.

Statement 2 is incorrect: Developing countries located in earthquake-prone regions, unreinforced brick masonry(URBM) has been a common practice in urban, semi-urban and rural areas of India.

These buildings are much more likely to experience damage or collapse during an earthquake.

Recently, researchers from the Indian Institute of Technology, Kanpur have developed a technology called semi-confined unreinforced brick masonry(SC-URBM).

The technology can resolve the problem of the spread of settlements in earthquake-prone areas with constructions that have been built without following earthquake-preventive building codes.

Source: New technology for retrofitting non-earthquake-resistant buildings can prevent major damage in old settlements