芦山7.0级强烈地震钢筋混凝土框架结构教学楼震害
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摘要
对四川省芦山"4.20"7.0级强烈地震中108栋钢筋混凝土框架结构教学楼的现场震害调查资料进行统计分析,并对典型工程震害现象进行总结。分析表明,随着烈度的增加,框架结构教学楼的震害越重;汶川地震之前建造的框架结构教学楼的震害重于汶川地震之后建造的框架结构教学楼;框架结构教学楼的震害程度随着结构层数的增加而加重;采用单跨外廊式承重体系的框架结构教学楼的破坏多以底层承重构件的破坏为主,采用双跨外廊式和多跨内廊式承重体系的框架结构教学楼的破坏多以填充墙破坏为主。
The damage to 108 reinforced concrete frame teaching buildings during Lushan earthquake was analyzed by statistical method. The typical engineering damage phenomenon was summarized. The results indicate that the seismic damage became more serious with the increase of the seismic intensity. The seismic damage of buildings which build before Wenchuan earthquake was more serious than the buildings which build after Wenchuan earthquake. The seismic damage became more serious with the increase of the number of stories. The bearing members of the first floor were severely damaged in the buildings which adopted single span-veranda bearing system. Lots of filler walls were damaged in the buildings which adopted double span-veranda or multi span-corridor bearing system.
The damage to 108 reinforced concrete frame teaching buildings during Lushan earthquake was analyzed by statistical method. The typical engineering damage phenomenon was summarized. The results indicate that the seismic damage became more serious with the increase of the seismic intensity. The seismic damage of buildings which build before Wenchuan earthquake was more serious than the buildings which build after Wenchuan earthquake. The seismic damage became more serious with the increase of the number of stories. The bearing members of the first floor were severely damaged in the buildings which adopted single span-veranda bearing system. Lots of filler walls were damaged in the buildings which adopted double span-veranda or multi span-corridor bearing system.
引文
[1]芦山地震专题[EB/OL].新华网.http://www.xinhuanet.com/forum/zt2013/yadz/index.htm
[2]GB/T 24335—2009建(构)筑物地震破坏等级划分[S].北京:中国标准出版社,2009(GB/T 24335—2009 Classification of earthquake damage to buildings and special structures[S].Beijing:China Standards Press,2009(in Chinese))
[3]GB/T 17742—2008中国地震烈度表[S].北京:中国标准出版社,2009(GB/T 17742—2008 The Chinese seismic intensity scale[S].Beijing:China Standards Press,2009(in Chinese))
[2]GB/T 24335—2009建(构)筑物地震破坏等级划分[S].北京:中国标准出版社,2009(GB/T 24335—2009 Classification of earthquake damage to buildings and special structures[S].Beijing:China Standards Press,2009(in Chinese))
[3]GB/T 17742—2008中国地震烈度表[S].北京:中国标准出版社,2009(GB/T 17742—2008 The Chinese seismic intensity scale[S].Beijing:China Standards Press,2009(in Chinese))
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