DCP

During an event of earthquake, many different type of building failures were observed in the past. So, it is very much important to understand, building failure patterns and reasons of that to reduce the building failure ratio by improving it against future seismic events. It is quite important to understand what is pounding effect, reasons of occurrence and types of it, remedial measures to avoid it and some capturing of past failures. Among the possible structural damages, seismic induced Pounding is one of the main causes of severe building damages and commonly observed in several earthquakes. The non-structural damage involves, pounding or movement across separation joints, between adjacent structures. What is Seismic Pounding? The Seismic Pounding is simply defined as, collision of buildings constructed in close proximity with each other. Why Seismic Pounding occur? The principle reason for the seismic pounding is; - Insufficient separation in betwe...

"Basic Principles for Engineers, Architects, Building Owners, and Authorities" 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. What happens to the buildings? 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 e...