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The Passage of time is one reason. Buildings also collapse due to weak foundations. Earthquakes, hurricanes and other natural disasters can also damage the structure of the buildings and cause it to collapse. Bombings or demolition of buildings is also other reasons.
Faulty designs , earth quakes , soil liquification , weak foundation
causes of building collaps:
demolition trough explosives.
faulty design (look at google at edificio space Medellin: design faults!)
earthquakes, maybe you can also put that under faulty design if you knew where the design is built.
soil liquification , due to earthquakes
hurricanes and typhoons, maybe you can also put that under faulty design if you knew where the design is built.
But also , modifications in the design during building phase, very dangerous if you do not follow all the steps.
faulty design
faulty implementation
abnormal unexpected forces (earth quack - strong wind - fire -etc)
Time, corrosion, tornados, hurricanes, earthquakes, water, soil, design, and more
In civil engineering the main reason of buildings easily collapsing is poor workmanship. For example the only thing that holds a build is just to make sure that it is resting or built on its weight as for places where there is no earth quakes. Other reasons are blasts, poor concrete rationing , poor re bars or steel fixing, poor form works, or natural disasters.
The causes of building collapse can be classified under general headings to facilitate analysis. These headings are: • Bad Design • Faulty Construction • Foundation Failure • Extraordinary Loads • Unexpected Failure Modes • Combination of Causes
I agree with Mr. shakeel answer .. Thanks
I agree with Mr. wolf and hatem.,i see all ans is good.
Weak foundation due to inaccurate soil bearing capacity
I agree with all answers, and thanks for inviting me.
