What are the various design principles followed for making an earthquake resistant structures?
(i) Structures should not be brittle or collapse suddenly. Rather, they should be tough, able to deflect or deform a considerable amount. (ii) Resisting elements, such as bracing or shear walls, must be provided evenly throughout the building, in both directions side-to-side, as well as top to bottom.
What does disaster resistant construction require?
Earthquake-resistant construction requires that the building be properly grounded and connected through its foundation to the earth. Building on loose sands or clays is to be avoided, since those surfaces can cause excessive movement and nonuniform stresses to develop during an earthquake.
What are the precautions to be followed while planning and designing an earthquake-resistant building?
At least a minimum lateral strength in each of its plan directions (uniformly distributed in both plan directions of the building), to resist low intensity ground shaking with no damage, and not too strong to keep the cost of construction in check, along with a minimum vertical strength to be able to continue to …
What precautions can be taken for seismic resistance in load bearing and framed structures?
One way to avoid such catastrophic failure in load bearing structures is to create a disconnect between the foundation of the building and the rest of the above ground structure by using the base isolation method or levitating the building during earthquake from its base by having an air compressor fill air between the …
What is the best material for earthquake resistant construction?
Building a structure to withstand seismic waves starts with the right materials with the right properties, and steel is by far the most widely used material for building earthquake-resistant buildings. According to the World Steel Association, ductile buildings are safer as they dissipate energy from seismic waves.
What are NDMA guidelines?
|1||Simplified Guideline for Earthquake Safety of Building from National Building Code of India 2016||Download(10 MB)|
|2||Cool Roof : House Owners’ Guide to alternate roof cooling solutions||Download(8.30 MB)|
|3||Guidelines on Management of Glacial Lake Outburst Floods (GLOFs)||Download(11.21 MB)|
What are the best designs and materials for earthquake-resistant structures?
Steel is an ideal solution for solidifying a building, whether it’s to withstand high winds or earthquakes, because it offers good ductility. In other words, when compared to brick and concrete, steel better offers buildings the ability to “bend” without breaking or cracking.
What is the precaution to be followed while planning and designing an earthquake resistant building?
To make a building earthquake proof, it is important to put shear walls, a shear core and cross-bracing as they provide additional strength. The building is bolted to the foundation, providing support walls called shear walls, which help in reinforcing the building that in turn resist rocking movements.
What are the ten principles of cyclone resistant construction?
The ten key principles of cyclone resistant construction. Use building layout with a simple regular shape, to avoid concentration of pressure. Build the roof at an angle of 30° to 45° to prevent it being lifted off by the wind. Avoid wide roof overhangs; separate the veranda structure from the house.
What kind of damage can a poorly designed building do?
Poorly-designed structures receive moderate to severe damage. Felt in wider areas; up to hundreds of miles/kilometers from the epicenter. Damage can be caused far from the epicenter. Strong to violent shaking in epicentral area.
What makes a wall resistant to an earthquake?
WALLS RESISTANT TO EARTHQUAKE A free standing wall must be designed to be safe as a vertical cantilever. This requirement will be difficult to achieve in un-reinforced masonry. Therefore all partitions inside the buildings must be held on the sides as well as top.
How are houses designed to withstand the wind?
If longer shapes are used, they must be designed to withstand the forces of the wind. Most houses are rectangular and the best layout is when the length is not more than three (3) times the width. In case of construction of group of buildings, a cluster arrangement can be followed in preference to row type.