【摘要】 汶川地震中,原北川县城位于地震烈度达到Ⅺ度的极震区内,建筑物几乎破坏殆尽。为了对建筑物震害机制开展相应的研究,防灾科技学院科考小组于2008年8月中旬前往北川县城及周边区域开展了现场科学调查。调查和分析结果表明,多种致灾机制共同作用于北川县城造成建筑破坏极为严重,建筑物震害指数基本上都在0.8以上,根据震害机制不同可以将县城区域划分为多个区域,不同区域内起主导作用的建筑物震害机制之间存在差异,典型建筑物充分地体现了不同震害机制的特点。更多还原

【Abstract】 During 2008 Ms 8.0 Wenchuan earthquake, the seismic intensity in Beichuan county town is Ⅺ,where most of buildings were severely damaged. An investigation was carried out in August 2008 to study the mechanism of building-damage. The results show that, the serious damage to buildings in Beichuan county town was due to multiple loads by earthquake, and the town could be divided into several subareas according to major mechanisms of building-damage.更多还原