单层殿堂式古建筑木结构动力分析模型
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摘要
殿堂式古建筑木结构由于其独特的构造特点而具有与现代建筑结构不同的抗震性能,现有的结构动力分析模型对于古建筑木结构不再适用。基于其水平地震作用下的受力性能及动力破坏形态,给出了关键构件的简化分析模型,将柱架简化为"摇摆柱",将枓栱铺作层简化为"剪弯杆";根据简化分析模型及整体结构质量分布情况,提出了单层殿堂式古建筑木结构的两质点"摇摆-剪弯"动力分析模型;结合构件试验以及动力学理论推导得到了动力分析模型不同受力状态下各参数的计算方法及适用范围,并与振动台试验结果进行对比。结果表明,提出的动力分析模型可以较好地反映单层殿堂式古建筑木结构在水平地震作用下的动力反应。
The monolayer hall-style ancient timber structure,due to its unique construction features,the seismic behavior is different from modern buildings.The existing dynamic analysis model of structure is no longer suitable for ancient timber structure.Based on its mechanical behavior and dynamic failure mode under the horizontal earthquake action,the equivalent models of the key members of which the column frame was simplified as 'rocking column' and the bucket arches was simplified as 'shear-bending member' were put forward.According to the equivalent models and mass distribution of the whole structure,'rocking-shear-bending' dynamic analysis model for monolayer hall-style ancient timber structure was proposed,the analysis method and application range of each parameter based on component test and theoretical derivation of dynamics were obtained.The results of analysis model were compared with experimental results.It is found that the test results agree with analysis results,which shows that the proposed dynamic analysis model can reflect the dynamic response of the monolayer hall-style ancient timber structure under the horizontal seismic action.
The monolayer hall-style ancient timber structure,due to its unique construction features,the seismic behavior is different from modern buildings.The existing dynamic analysis model of structure is no longer suitable for ancient timber structure.Based on its mechanical behavior and dynamic failure mode under the horizontal earthquake action,the equivalent models of the key members of which the column frame was simplified as 'rocking column' and the bucket arches was simplified as 'shear-bending member' were put forward.According to the equivalent models and mass distribution of the whole structure,'rocking-shear-bending' dynamic analysis model for monolayer hall-style ancient timber structure was proposed,the analysis method and application range of each parameter based on component test and theoretical derivation of dynamics were obtained.The results of analysis model were compared with experimental results.It is found that the test results agree with analysis results,which shows that the proposed dynamic analysis model can reflect the dynamic response of the monolayer hall-style ancient timber structure under the horizontal seismic action.
引文
[1]汪兴毅,杨智良.殿堂型木构架古建筑的抗震构造研究[J].合肥工业大学学报:自然科学版,2007,30(10):1349-1352.(WANG Xingyi,YANG Zhiliang.Research on aseismic construction of ancient timber-framed halls[J].Journal of Hefei University ofTechnology:Natural Science,2007,30(10):1349-1352.(in Chinese))
[2]李中锡,周锡元.规则型隔震房屋的自振特性和地震反应分析方法[J].地震工程与工程振动,2002,22(2):33-41.(LI Zhongxi,ZHOU Xiyuan.Simplifiedanalysis method of seismically isolated regular building[J].Earthquake Engineering and EngineeringVibration,2002,22(2):33-41.(in Chinese))
[3]刘文光,闫维明,霍达,等.塔型隔震结构多质点体系计算模型及振动台试验研究[J].土木工程学报,2003,36(5):64-70.(Liu Wenguang,Yan Weiming,Huo Da,et al.Computation model and shaking tabletest for isolated MDOF tower structure[J].China CivilEngineering Journal,2003,36(5):64-70.(inChinese))
[4]姚侃.木结构古建筑的结构特性及抗震性能研究[D].西安:西安建筑科技大学,2006.(YAO Kan.Study on the structural properties and seismicperformance of Chinese historical timber buildings[D].Xi’an:Xi’an University of Architecture&Technology,2006.(in Chinese))
[5]隋.中国古代木构耗能减震机理与动力特性分析[D].西安:西安建筑科技大学,2009.(SUI Yan.Analysis on energy dissipation mechanism and dynamiccharacteristic for Chinese ancient timber buildings[D].Xi’an:Xi’an University of Architecture&Technology,2009.(in Chinese))
[6]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报,2011,32(9):1-10.(ZHOUYing,LU Xilin.State-of-the-art on rocking and self-centering structures[J].Journal of Building Structures,2011,32(9):1-10.(in Chinese))
[7]曹加良,施卫星,刘文光.隔震结构动力特性及响应对计算模型参数的敏感性研究[J].工程力学,2011,28(8):168-176.(CAO Jialiang,SHI Weixing,LIU Wenguang.Sensitivity of dynamic response andcharacteristics of isolated structures to calculation modelparameters[J].Engineering Mechanics,2011,28(8):168-176.(in Chinese))
[8]丰定国,王社良.抗震结构设计[M].武汉理工大学出版社,2003:45-46.
[9]Tanahashi Hideaki,Suzuki Yoshiyuki.Elasto-plasticPasternak model simulation of static and dynamicloading tests of traditional wooden frames[C]//WorldConference on Timber Engineering:WCTE 2010.Trentino,Italy:CNR-IVALSA,2010,2:476-485.
[10]胡聿贤.地震工程学[M].北京:地震出版社,2005:168-169.
[11]李诫(宋).营造法式[M].上海:商务印书馆,1954:21-29.
[2]李中锡,周锡元.规则型隔震房屋的自振特性和地震反应分析方法[J].地震工程与工程振动,2002,22(2):33-41.(LI Zhongxi,ZHOU Xiyuan.Simplifiedanalysis method of seismically isolated regular building[J].Earthquake Engineering and EngineeringVibration,2002,22(2):33-41.(in Chinese))
[3]刘文光,闫维明,霍达,等.塔型隔震结构多质点体系计算模型及振动台试验研究[J].土木工程学报,2003,36(5):64-70.(Liu Wenguang,Yan Weiming,Huo Da,et al.Computation model and shaking tabletest for isolated MDOF tower structure[J].China CivilEngineering Journal,2003,36(5):64-70.(inChinese))
[4]姚侃.木结构古建筑的结构特性及抗震性能研究[D].西安:西安建筑科技大学,2006.(YAO Kan.Study on the structural properties and seismicperformance of Chinese historical timber buildings[D].Xi’an:Xi’an University of Architecture&Technology,2006.(in Chinese))
[5]隋.中国古代木构耗能减震机理与动力特性分析[D].西安:西安建筑科技大学,2009.(SUI Yan.Analysis on energy dissipation mechanism and dynamiccharacteristic for Chinese ancient timber buildings[D].Xi’an:Xi’an University of Architecture&Technology,2009.(in Chinese))
[6]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报,2011,32(9):1-10.(ZHOUYing,LU Xilin.State-of-the-art on rocking and self-centering structures[J].Journal of Building Structures,2011,32(9):1-10.(in Chinese))
[7]曹加良,施卫星,刘文光.隔震结构动力特性及响应对计算模型参数的敏感性研究[J].工程力学,2011,28(8):168-176.(CAO Jialiang,SHI Weixing,LIU Wenguang.Sensitivity of dynamic response andcharacteristics of isolated structures to calculation modelparameters[J].Engineering Mechanics,2011,28(8):168-176.(in Chinese))
[8]丰定国,王社良.抗震结构设计[M].武汉理工大学出版社,2003:45-46.
[9]Tanahashi Hideaki,Suzuki Yoshiyuki.Elasto-plasticPasternak model simulation of static and dynamicloading tests of traditional wooden frames[C]//WorldConference on Timber Engineering:WCTE 2010.Trentino,Italy:CNR-IVALSA,2010,2:476-485.
[10]胡聿贤.地震工程学[M].北京:地震出版社,2005:168-169.
[11]李诫(宋).营造法式[M].上海:商务印书馆,1954:21-29.
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