what are the after effects of building collapse
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Buildings, like all structures, are designed to support certain loads without deforming excessively. The loads are the weights of people and objects, the weight of rain and snow and the pressure of wind--called live loads--and the dead load of the building itself. With buildings of a few floors, strength generally accompanies sufficent rigidity, and the design is mainly that of a roof that will keep the weather out while spanning large open spaces. With tall buildings of many floors, the roof is a minor matter, and the support of the weight of the building itself is the main consideration. Like long bridges, tall buildings are subject to catastrophic collapse.
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
Bad design does not mean only errors of computation, but a failure to take into account the loads the structure will be called upon to carry, erroneous theories, reliance on inaccurate data, ignorance of the effects of repeated or impulsive stresses, and improper choice of materials or misunderstanding of their properties. The engineer is responsible for these failures, which are created at the drawing
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
Bad design does not mean only errors of computation, but a failure to take into account the loads the structure will be called upon to carry, erroneous theories, reliance on inaccurate data, ignorance of the effects of repeated or impulsive stresses, and improper choice of materials or misunderstanding of their properties. The engineer is responsible for these failures, which are created at the drawing
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