地震中造成建筑物毁损的耦合效应
|
摘要
通过对北川地震灾区损毁建筑物的实地调查,指出震区建筑物毁损是由地质背景条件、建设场区地基土特性及建筑施工技术等多种因素的耦合效应造成的。地震诱发滑坡、崩塌、砂土液化等次生地质灾害造成建筑物场区失稳、失效,是震区建筑物毁损的重要原因。震区房屋毁损的特点是砖混结构和复杂建筑破坏严重,框架结构房屋和建筑幕墙等其他建筑破坏各有特点。在综合分析使建筑物毁损的耦合效应的基础上,提出了提高震区设防烈度、科学选址及吸收国内外先进抗震经验的思路,为灾后重建工作积累科学资料。
Based on field investigation into seismic damage to buildings in Beichun earthquake,it is pointed out that the building damage in seismic zone is caused by coupling effects of multifactors such as geological background condition,foundation soil characteristics in construction site and building construction technology.The-earthquake-induced secondary geological disasters,for instance the landslide,avalanche,sand liquefaction,etc.are important factors inducing site unstability and building damage.The building damage in seismic zone is characterized by serious destruction of brick masonry and complex structures and partial destruction of frame building and curtain wall.On the basis of comprehensive analysis of coupling effects metioned above,the paper presents the thinking about improvement of fortification intensity,scientific selection of site and utilization of advance experience at home and abroad.
Based on field investigation into seismic damage to buildings in Beichun earthquake,it is pointed out that the building damage in seismic zone is caused by coupling effects of multifactors such as geological background condition,foundation soil characteristics in construction site and building construction technology.The-earthquake-induced secondary geological disasters,for instance the landslide,avalanche,sand liquefaction,etc.are important factors inducing site unstability and building damage.The building damage in seismic zone is characterized by serious destruction of brick masonry and complex structures and partial destruction of frame building and curtain wall.On the basis of comprehensive analysis of coupling effects metioned above,the paper presents the thinking about improvement of fortification intensity,scientific selection of site and utilization of advance experience at home and abroad.
引文
[1]彭建兵,马润勇等.汶川大震的科学思考[J].地球科学与环境学报,2009.
[2]袁丽侠.宁夏地震诱发黄土滑坡[M].银川:宁夏人民出版社,2005.
[3]袁丽侠.宁夏地震诱发黄土滑坡图集[M].北京:地质出版社,2006.
[4]Mendoza MJ,Auvinet G.The Mexico Earthquake of September19.1985.Behavior of Building Fundation in Mexico City[J].Earthquake spectra.1998.(4):835-853.
[5]Eduardo R.Mario O.Spetra ratios for Mexic City From Free-fild recording[J].Earthquake Spetra,1999,(2):273-295.
[6]袁丽侠.场地土对地震波的放大效应[J].世界地震工程,2003(1):113-120.
[7]Cinna Lomnitz.Gravity waves in earthquakes[J].Engineering Geology.(1990)29:95-97.
[8]袁丽侠.论宁夏银川地区的砂土地基及工程抗震措施[J].宁夏大学学报(自然科学版)2003,(2):205-208.
[9]袁丽侠.THE LOESS SEISMIC LANDSLIDE IN THE SOUTHOF NINGXIA[C]//南京国际工程地震测试会议论文集,2004.
[2]袁丽侠.宁夏地震诱发黄土滑坡[M].银川:宁夏人民出版社,2005.
[3]袁丽侠.宁夏地震诱发黄土滑坡图集[M].北京:地质出版社,2006.
[4]Mendoza MJ,Auvinet G.The Mexico Earthquake of September19.1985.Behavior of Building Fundation in Mexico City[J].Earthquake spectra.1998.(4):835-853.
[5]Eduardo R.Mario O.Spetra ratios for Mexic City From Free-fild recording[J].Earthquake Spetra,1999,(2):273-295.
[6]袁丽侠.场地土对地震波的放大效应[J].世界地震工程,2003(1):113-120.
[7]Cinna Lomnitz.Gravity waves in earthquakes[J].Engineering Geology.(1990)29:95-97.
[8]袁丽侠.论宁夏银川地区的砂土地基及工程抗震措施[J].宁夏大学学报(自然科学版)2003,(2):205-208.
[9]袁丽侠.THE LOESS SEISMIC LANDSLIDE IN THE SOUTHOF NINGXIA[C]//南京国际工程地震测试会议论文集,2004.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心