Ductility Requirements of Earthquake Resistant Reinforced Concrete Building

Abstract

Ductility Requirements of Earthquake Resistant Reinforced Concrete Building At this stage, it is not necessary to explain why study of earthquake resistant structures with ductility requirement is essential. After the killing earthquake of Bhuj on January 26, 2001, the attitude of the structural engineers of looking towards the earthquakes has totally changed. In general, the analysis of earthquake forces and design of earthquake resistant structure is very much complex in nature. Of course, there exist some simplifying assumptions and thoughts, which make this complex problem somewhat simple to handle. It is to be noted that the actual practice of carrying out earthquake resistant construction varies from country to country and from time to time.

Conclusion

In earthquakes, failure of buildings occurs due to non-ductile behavior of its components, so following members should be designed with appropriate ductile detailing.
1. Ductile detailing for flexural members / beams.
2. Anchorage of beam bars in an external joint.
3. Special confining reinforcement in column.
4. Beam to column connections
The earthquake resistant design of Reinforced Concrete Building and it’s ductile detailing as per IS 13920: 1993 of all the structural elements and their connections enhance the ductility of the structure which will enable the structure to absorb energy during earthquake and to sustain large inelastic deformation without sudden collapse of the structure. Therefore, higher the ductility of the structure; lesser effect of seismic force.