Earthquake Resistant Structures – Essay Example
and Section # of Earthquake Resistant Structures Earthquake occurs when the plates on which we are living move and shake, as a natural phenomenon. It is the sudden breaking and shifting of tectonic plates that causes disastrous consequences. There are many ways to save the buildings from damage when earthquakes happen; some of the techniques are mentioned below.
Wood framing in houses and buildings can help resist the toppling of buildings when an earthquake hits. It is the least costly and helps to absorb shock waves as well. They are the best as well because they can bend and absorb shock waves; one of the biggest reasons California houses are made with this technology and suffer the least (Pankaj. 2006).
Seismic Isolation involves the development of elastic dampers or rollers on which the building is standing, with a ‘moat’ separating it from the ground. In case of an earthquake hitting, the building doesn’t move due to inertia and the ground moves. This technology, though more expensive can be scaled up to huge buildings as well.
Shear walls are walls made of concrete with rods or bars which are embedded in it, to improve flexibility and absorb shock during rapid movements. They are usually in the centre of the building, near the elevator or staircase and form a shear core. This is a general method of protecting buildings from collapsing, used in medium to small sized buildings
Another method of strengthening the walls and reinforce their strength is through attaching diagonal steel beams to the walls, called cross bracing (NASA, 2010).
If the building is coupled with all or some of the techniques, it is less likely to cause havoc and remain intact during an earthquake.
Agarwal, P. Earthquake Resistant Design of Structures PHI Learning. (2006).
NASA. “World Book at NASA – Earthquake”. 16th May 2010. http://www.nasa.gov/worldbook/earthquake_worldbook.html