Novel Techniques for Seismic Performance of High Rise Structures in 21st Century: State-Of-The Art Review

[摘要] Natural disasters like earthquakes are causing catastrophic failure for various structures in and around the world because of its unpredictable nature. Even in India, almost 80% of, India's capital, Delhi's buildings are not earthquake resistant. If at all there is a moderate earthquake in Delhi, millions of lives and huge of property will be lost. There are many places in India including four metropolitan cities, in which majority of high rise buildings are not earthquake resistant. It is important to account for damage caused by earthquakes, incorporating suitable resistant techniques for the safeguard of the people. The present study deals with highlighting the novel techniques adopted in the recent past to make the structures earthquake resistant. Performance based design is one such approach where in performance of structure is given the utmost importance unlike the existing standards. Lateral load resisting systems like chevron braces, knee braces in combination with aluminium shear links are found to reduce the impact of earthquake on the structures w.r.t its drift. It is also observed that the use of economical and feasible passive and active control vibration systems like dampers, isolation techniques led to revolutionary changes in the overall performance of high rise.

[发布机构] Department of Civil Engineering, BITS Pilani, Hyderabad Campus, Telangana; 500078, India^1

[效力级别] 机械制造

[关键词] Catastrophic failures;Earthquake resistant;High rise structures;Isolation techniques;Lateral load resisting systems;Performance based design;Revolutionary changes;State-of-the art reviews