This video is all about taking care of 36 principles (as suggested by Hugo Bachmann) while designing building structures by Engineers, Architects, Building Owners and Local Authorities..!
II Why it is required? II
In an earthquake, seismic waves arise from sudden movements in a rupture zone (active fault) in the earth’s crust. Waves of different types and velocities travel different paths before reaching a building’s site and subjecting the local ground to various motions.
The ground moves rapidly back and forth in all directions, usually mainly horizontally, but also vertically.
If the ground moves rapidly back and forth, then the foundations of the building are forced to follow these movements. The upper part of the building however would prefer to remain where it is because of its mass of inertia. This causes strong vibrations of the structure with resonance phenomena between the structure and the ground, and thus large internal forces. This frequently results in plastic deformation of the structure and substantial damage with local failures and, in extreme cases, collapse.
Therefore buildings must be designed to cover considerable uncertainties and variations.
Now, Watch the video to learn how can we take care of our buildings. If not, than what we pay.
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