Performance of Building Roofs in the 2003 Bam, Iran, Earthquake
Performance of Building Roofs in the 2003 Bam, Iran, Earthquake
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2003 年伊朗巴姆地震中建筑屋顶的性能
DOI：
10.1193/1.2098859
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发表时间：
2005
影响因子：
5
通讯作者：
M. Maheri
中科院分区：
文献类型：
--
作者：
M. Maheri
2003年12月26日伊朗巴姆市地震前覆盖建筑物的屋顶可分为三大类：传统的砖石圆顶或拱顶、工字钢千斤顶拱系统和混凝土梁空心砌块系统。非工程砖石屋顶和楼板在地震中倒塌是造成大量死亡的最大原因。本文讨论了每种类型的屋面的抗震性能及其优缺点。指出了传统穹顶结构和无锚固拱板结构抗震性能差的问题，讨论了有锚固拱板结构和混凝土梁-空心砌块板结构的抗震性能。
Roofs covering buildings in the city of Bam, Iran prior to the earthquake of 26 December 2003 can be categorized into three main groups: traditional masonry dome or vault, steel I-beam jack-arch system, and concrete beam-hollow block system. The collapse of nonengineered masonry roofs and floor slabs during the earthquake was the single largest contributor to the large number of fatalities. This paper discusses the seismic performance of each type of roofing and their strengths and weaknesses. The poor seismic performance of traditional domes and vault roofs and unanchored jack-arch slabs are noted and the seismic merits of the anchored jack-arch slabs and concrete beam-hollow block slabs are discussed.