芦山7.0级地震芦山县老城区房屋建筑震害特征与因素研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
根据芦山7.0级地震芦山县老城区房屋建筑的震害现场调查资料,进行震害特征与因素研究。结果表明:典型的房屋建筑震害特征包括砖混结构、砖木结构和砖石结构房屋全部或者部分倒塌、墙体错动和贯通开裂以及房顶瓦片滑落等,框架结构房屋构造柱变形、断裂和墙体开裂等;房屋建筑遭到破坏的内在因素包括缺少圈梁和构造柱、荷载分布不当、选址不规范等;其破坏成因机理可以归结为近场大震强地震动作用、局部场地效应、行波效应和施工质量较差等。同时,讨论了砖混结构、砖木结构、框架结构和砖石结构抗震设计的加固方法和改善抗震性能的构造措施等,为房屋建筑抗震设防和减轻震害损失等提供参考。
Based on the field investigation data,we research the damage characteristic of buildings and its formation mechanism in the Lushan old city induced by Lushan MS7. 0 earthquake. It is found that the typical damage characteristic of the building with brick concrete,brick wood and masonry structure mainly includes the whole or local collapse of the building,drifting and displacing of the walls,penetration cracking the walls,and roof tiles sliding. On the other hand,the typical damage characteristic of the building with frame structure is deformation and fracture of constructional column and walls cracking. The main interior factors of buildings damages are lack of ring beam and constructional column,improper load distribution,and non-standard construction site etc..The formation mechanism of the destroyed buildings is summarized as follow: the strong motion action of large earthquake in near-field,the local site effect,the traveling wave effect and poor construction qualities of the buildings etc.. The reinforcement methods reaching to seismic fortification design and measures of improving anti-seismic capacity of four structures building are also discussed,which could offer reference to the earthquake fortification of the building and the reduction of damage loss.
引文
蔡勇.2011.砌体在剪—压复合作用下抗震抗剪强度分析[J].建筑结构,41(2):74-77.
    陈再现,王凤来,杨同盖,等.2011.底框砌体剪力墙震损房屋抗震加固拟动力子结构试验[J].土木建筑与环境工程,33(6):1-6.
    贺秋梅,李方杰,吕红山,等.2007.宁洱6.4级地震房屋建筑震害调查与分析[J].震灾防御技术,2(3):279-284.
    洪海春,侯康明,谭慧明,等.2011.安徽安庆MS4.8地震现场调查启示与震害特征分析[J].震灾防御技术,6(2):471-477.
    洪海春,彭小波,毕雪梅,等.2012.重大建设工程基本自振周期估算方法探讨[J].震灾防御技术,7(3):227-237.
    金波,高永武,陈洪富,等.2013.芦山“4·20”地震单层砖柱工业厂房的震害分析与研究[J].自然灾害学报,22(3):1-8.
    李碧雄,谢和平,邓建辉,等.2009.汶川地震中房屋建筑震害特征及抗震设计思考[J].防灾减灾工程学报,29(2):224-230.
    李宏男,肖诗云,霍林生.2008.汶川地震震害调查与启示[J].建筑结构学报,29(4):10-19.
    李志强,侯建盛,李洋,等.2013.2013年4月20日四川芦山MS7.0地震灾害特点分析[J].地震地质,35(2):398-410.
    吕伟荣,施楚贤,刘锡军,等.2012.混凝土空心砌块砌体抗震抗剪强度[J].土木建筑与环境工程,34(5):1-5.
    谭皓,李杰,张电吉,等.2011.玉树大地震砌体结构房屋震害特征[J].工程抗震与加固改造,33(5):133-139.
    王威,薛建阳,罗大明,等.2011.建筑楼梯在2008年汶川大地震中的震害分析[J].地震工程与工程振动,31(5):157-166.
    王翠坤,杨沈.2008.汶川地震对建筑结构设计的启示[J].震灾防御技术,3(3):230-236.
    韦锋,陈文科,傅剑平,等.2009.8度区框—剪结构中框架在罕遇地震下的反应性态[J].土木建筑与环境工程,31(6):60-65.
    吴波,黄仕香,赵新宇.2011.混凝土空间框剪结构的抗震试验与分析[J].土木建筑与环境工程,33(6):44-50.
    伍圣喜,吴从晓,韩家军,等.2007.云南宁洱6.4级地震砖混结构房屋震害调查与分析[J].震灾防御技术,2(3):285-289.
    袁建力.2013.砖石古塔震害程度与地震烈度的对应关系研究[J].地震工程与工程振动,33(2):163-167.
    中国地震局.2013.中国地震局发布四川省芦山“4·20”7.0级强烈地震烈度图[EB/OL].[2013-11-27].http://www.cea.gov.cn/publish/dizhenj/464/478/20130425153642550719811/index.html.
    周云,邹征敏,张超,等.2009.汶川地震砌体结构的震害与改进砌体结构抗震性能的途径和方法[J].防灾减灾工程学报,29(1):109-113.
    Bozdogan K.B..2009.An Approximate Method for Static and Dynamic analyses of Symmetric Wall-frame Buildings[J].The Structural Design of Tall and Special Buildings,18(3):279-290.
    Lu Y..2002.Seismic Behavior of Multistory RC Wall-fame Wystem Versus bare Ductile Frame System[J].Earthquake Engineering and Structural Dynamics,31:79-97.
    Panagiotakos T.B.,Fadis M.N..2001.Deformations of Reinforced Concrete Members at Yielding and Ultimate[J].ACI Structural Journal,98(2):135-148.
    Pantazopoulou S.J.,French C.W..2001.Slab Participation in Practical Earthquake Design of Reinforced Concrete Frame[J].ACI Structural Journal,98(4):479-489.
    Shieh-Beygi B.,Pietruszczak S..2008.Numerical Analysis of Structural Masonry:Mesoscale Approach[J].Computers and Structures,86(21-22):1958-1973.
    GB 50011—2010,建筑抗震设计规范[S].
    GB50003—2001,砌体结构设计规范[S].
    JGJ161—2008,镇(乡)村建筑抗震技术规程[S].

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