Performance of Unreinforced Masonry Buildings in Canterbury Earthquakes
سال انتشار: 1390
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 123
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شناسه ملی سند علمی:
JR_JSEE-13-1_003
تاریخ نمایه سازی: 12 آبان 1400
چکیده مقاله:
This paper describes the impact of the ۴th September ۲۰۱۰ and the ۲۲nd February ۲۰۱۱ Canterbury earthquakes on masonry buildings. Christchurch and the surrounding areas have more than a thousand old buildings built of unreinforced brick and stone masonry. Several unreinforced masonry (URM) buildings were damaged (some very severely) in the September earthquake; whereas the February earthquake caused severe damage (many collapsed) to most URM buildings in Christchurch; requiring them to be demolished. As expected, retrofitted URM buildings generally performed better, but in the February earthquake several retrofitted buildings were also severely damaged. URM buildings with perimeter walls partially anchored using small and sporadic anchor bolts not extending to the full perimeter and height of the walls suffered severe damage. On the other hand, URM buildings that were systematically retrofitted to avoid the perimeter walls from detaching from each other and from the floor and roof sustained the severe shakings of the February earthquake with only minor damage.
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نویسندگان
Rajesh Dhakal
University of Canterbury