what are the main cause of building in India?
Answers
Overload… Too many people on a balcony or deck is a common reason for collapse of such structures or when the occupancy of areas are changed without an evaluation
Lack of maintenance… A lack of maintenance will lead to things like not noticing a problem before it becomes catastrophic
Use of inferior materials/chemicals… Such as older (1960s - 1980s) fire retardant treated wood roof assemblies made with cheap ammonium phosphate are prone to collapse after 25 years of service
Bad engineering… Structural engineers make mistakes, everyone does, but in small firms a lack of multiple people checking designs can lead to bad calculations and structural failures
Under-designed… Dont confuse this with bad engineering, under-designed means you followed the code correctly and performed good calculations but it still was inadequate for the loads
Fire… Fire reduces steel yield strengths, causes concrete to undergo chemical changes that weakens it, causes masonry to spall/crack and will consume wood materials… All of which can result in collapse
Bad construction… The most common reason for an attached and self-supported deck to collapse is the contractor only provided nails between the deck ledger and the structure of the house, resulting in the deck pulling away
Impact damage… Such as someone driving a car into a house, which can result in partial collapses
Storm damage… Winds generally dont result in a collapse as things are lifted away and not falling downwards, but floods can cause buildings/bridges to collapse
Soils… Development of a sinkhole (man made or natural) can obviously cause a building/bridge to collapse
Seismic… Earthquakes can make just about anything collapse if it is not designed for the magnitude of accelerations occuring
hai guys,
some of the main causes for building collapses are bed design, faulty construction, foundation failure, extraordinary loads ,unexpected failure modes or a combination of causes. but collapses also occur due to natural disasters such as earthquakes, floods , hurricanes, cyclones, and fires.