Some of the main causes for building collapses are bad 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.
Column failure in think in this structure 230mm×230mm wall thickness columns are used throughout the building because of this the load provided more than 2stories is not capable to withstand.
Soft story of building need to be considered during design stage , its may be one of the major cause of this failure.Slender columns at ground floor level caused the failure
This failure may be because of horizontal load due to wind/seismic
No shear wall at ground floor level
Reinforcement detailing would not have been done as per codal provisions
This is due to soft storey failure. Soft storey is provided in all multi storey building for parking. To avoid soft storey failure we can provide shear wall.