INTERBUILDING POUNDING DAMAGE OBSERVED IN THE 2010 DARFIELD EARTHQUAKE
INTERBUILDING POUNDING DAMAGE OBSERVED IN THE 2010 DARFIELD EARTHQUAKE
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DOI：
10.5459/bnzsee.43.4.382-386
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发表时间：
2010-12
期刊：
影响因子：
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通讯作者：
G. Cole;R. Dhakal;A. Carr;D. Bull
中科院分区：
文献类型：
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作者：
G. Cole;R. Dhakal;A. Carr;D. Bull
摘要达菲尔德地震发生五天后，在基督城中央商务区（CBD）进行了一次对建筑物遭受重击损坏的街道调查。撞击损坏并不经常发生，观察到的损坏程度一般很低。中度至严重的碰撞损坏，只观察到在一些无钢筋砌体建筑。在CBD外面，一层倒塌的楼层可以归因于撞击。大部分碰撞损伤发生在垂直结构元件上。相邻的阶梯式立面也被发现是敏感的。与撞击相关的破坏模式可能导致建筑物在更严重/持续时间更长的震动或主要余震中倒塌。撞击破坏仍然是新西兰未来强震的严重问题。
SUMMARY Five days after the Darfield earthquake, a street survey of buildings with pounding damage was performed in Christchurch Central Business District (CBD). Pounding damage did not occur very often, and the level of damage observed was generally low. Moderate to severe pounding damage was observed only in some unreinforced masonry buildings. Outside the CBD one collapsed storey can be attributed to pounding. The majority of pounding damage occurred in vertical structural elements. Adjacent stepped facades were also found to be susceptible. The damage patterns associated with pounding could have led to building collapse in more severe/longer duration shaking or major aftershocks. Pounding damage remains a serious concern for future strong earthquakes in New Zealand.