Monday, 12 September 2016

Resistance of building structures to earthquakes

After the earthquake which has been occurred in East Africa just 2 days ago and destroyed many buildings, we wonder to build an earthquake-proof building. During a very strong earthquake, even the best engineered building may suffer severe damage. Engineers design buildings to withstand as much sideways motion as possible in order to minimize damage to the structure and give the occupants time to get out safely.

Buildings are basically designed to support a vertical load in order to support the walls, roof and all occupants to keep them standing. Earthquakes present a lateral, or sideways, load to the building structure that is a bit more complicated to account for. One way to make a simple structure more resistant to these lateral forces is to tie the walls, floor, roof, and foundations into a rigid box that holds together when shaken by a quake.

The most dangerous building construction, from an earthquake point of view, is unreinforced brick or concrete block.  Generally, this type of construction has walls that are made of bricks stacked on top of each other and held together with mortar.  The roof is laid across the top.  The weight of the roof is carried straight down through the wall to the foundation.  When this type of construction is subject to a lateral force from an earthquake the walls overturn from normal position and the roof falls in like a house of cards. From this we use reinforced concrete in sup structure as plinth beams, middle and continues lintel. For more information contact RICIltd at bizididace1@gmail.com and emmanueltwizeyimana71@yahoo.com


 

                       This photo shows the distribution of reinforcement in the building


                         by Didace BIZIYAREMYE on Monday, 12thSep 2016

1 comment:

  1. its very good by how you can reinforced the bricks by using links?

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