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A platform for research: civil engineering, architecture and urbanism
Seismic Strengthening Solutions for Existing Buildings
Seismic vulnerability of buildings and other critical infrastructure are a major concern for developing countries with moderate to high seismic risk. Absence of public awareness, lack of earthquake resistant design and poor quality of construction are mainly responsible for such vulnerabilities. This has been manifested in recent years in earthquakes in India, Nepal, Indonesia, China, Iran and Turkey. Inherent weakness of unreinforced masonry (URM) and improperly designed reinforced concrete frame (RCF) buildings have resulted in hundreds of building collapse or damage beyond repair and associated loss of lives in thousands. Seismic vulnerability assessment of existing buildings followed by structural strengthening of vulnerable buildings is therefore a top national priority for these countries. The same is true for Bangladesh where recent vulnerability studies have pointed out to severe damage and loss scenarios for major cities of Bangladesh including the capital Dhaka. However, seismic strengthening (retrofit) works in Bangladesh have started systematically only in recent years under the structural integrity reassessment program of existing readymade garments factories and allied industries. This program followed the infamous collapse of Rana Plaza building in 2013. This paper deals with various techniques that may be readily adopted for the seismic strengthening of existing URM and RCF buildings. Some examples of retrofitting measures in Bangladesh have been presented, along with some examples from Iran. Finally, advanced methods of seismic retrofitting such as base isolation and use of dissipation devices are briefly discussed with some practical applications presented.
Seismic Strengthening Solutions for Existing Buildings
Seismic vulnerability of buildings and other critical infrastructure are a major concern for developing countries with moderate to high seismic risk. Absence of public awareness, lack of earthquake resistant design and poor quality of construction are mainly responsible for such vulnerabilities. This has been manifested in recent years in earthquakes in India, Nepal, Indonesia, China, Iran and Turkey. Inherent weakness of unreinforced masonry (URM) and improperly designed reinforced concrete frame (RCF) buildings have resulted in hundreds of building collapse or damage beyond repair and associated loss of lives in thousands. Seismic vulnerability assessment of existing buildings followed by structural strengthening of vulnerable buildings is therefore a top national priority for these countries. The same is true for Bangladesh where recent vulnerability studies have pointed out to severe damage and loss scenarios for major cities of Bangladesh including the capital Dhaka. However, seismic strengthening (retrofit) works in Bangladesh have started systematically only in recent years under the structural integrity reassessment program of existing readymade garments factories and allied industries. This program followed the infamous collapse of Rana Plaza building in 2013. This paper deals with various techniques that may be readily adopted for the seismic strengthening of existing URM and RCF buildings. Some examples of retrofitting measures in Bangladesh have been presented, along with some examples from Iran. Finally, advanced methods of seismic retrofitting such as base isolation and use of dissipation devices are briefly discussed with some practical applications presented.
Seismic Strengthening Solutions for Existing Buildings
Springer Tracts in Civil Engineering
Kolathayar, Sreevalsa (editor) / Pal, Indrajit (editor) / Chian, Siau Chen (editor) / Mondal, Arpita (editor) / Al-Hussaini, T. M. (author) / Hoque, M. M. (author) / Moghadam, A. S. (author)
2021-11-22
14 pages
Article/Chapter (Book)
Electronic Resource
English
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