会善寺大雄宝殿结构动力性能分析
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摘要
为更好保护会善寺大雄宝殿,对会善寺大雄宝殿进行了现场调研,结合点云技术建立并验证其数值分析模型,研究了大雄宝殿的动力特性及在多遇地震作用下的动力响应。结果表明:结构基本自振周期为1.82s,体现石木结构长周期特性;在纵向多遇地震作用下,前檐木柱变形大于后檐石柱,结构除平动外还存在扭转;在横向多遇地震作用下,明间与次间木屋架有较大横向位移差,连接明间与次间木屋架的檩条和枋等纵向构件可能出现较大滑移并导致屋盖错位;在双向地震作用下,结构纵向和横向最大位移是单向地震作用下的1.1～1.2倍,扭转效应比单向地震作用下大。研究结果可为会善寺大雄宝殿及同类建筑的维修加固提供理论支持。
To study the structural performance and provide guidances for the protection of the Chinese famous ancient buildings, the Great Buddha Hall of Huishan temple, a site survey of the Great Buddha Hall is conducted. The point cloud technology is adopted to build and verify the numerical analysis model. An effort is made to analyze the dynamic characteristics of the Great Buddha Hall and the dynamic responses when the structure suffered to the frequent earthquake actions. The results indicate that the fundamental natural period of vibration is 1.82 s. Under the longitudinal frequent earthquake action, the displacement of the brim pillar is more serious than that of the hind eave. Except translation responses, the structure also exists the torsion responses. Under the transversal frequent earthquake action, there are relative large displacement differences between the bright eave and second eave, and slides may occur for the purlin and balk which used to link the bright eave and second eave. With the effect of bidirectional earthquake action, the largest displacement differences of the structure is 1.1～1.2 times larger than those under the unidirectional earthquake actions. The effect of torsion is more obvious than that under the unidirectional earthquake actions. The study could be a basis for reinforcing the great buddha Hall of Huishan temple and a reference for repairing other ancient timber buildings.
To study the structural performance and provide guidances for the protection of the Chinese famous ancient buildings, the Great Buddha Hall of Huishan temple, a site survey of the Great Buddha Hall is conducted. The point cloud technology is adopted to build and verify the numerical analysis model. An effort is made to analyze the dynamic characteristics of the Great Buddha Hall and the dynamic responses when the structure suffered to the frequent earthquake actions. The results indicate that the fundamental natural period of vibration is 1.82 s. Under the longitudinal frequent earthquake action, the displacement of the brim pillar is more serious than that of the hind eave. Except translation responses, the structure also exists the torsion responses. Under the transversal frequent earthquake action, there are relative large displacement differences between the bright eave and second eave, and slides may occur for the purlin and balk which used to link the bright eave and second eave. With the effect of bidirectional earthquake action, the largest displacement differences of the structure is 1.1～1.2 times larger than those under the unidirectional earthquake actions. The effect of torsion is more obvious than that under the unidirectional earthquake actions. The study could be a basis for reinforcing the great buddha Hall of Huishan temple and a reference for repairing other ancient timber buildings.
引文
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[2] 刘敦桢.中国古建筑史(第二版)[M]:北京:中国建筑工业出版社,2005:246.LIU Dunzhen.Chinese Ancient Architectural History(Ⅱ)[M].Beijing:China Architecture & Building Press,2005:246.(in Chinese)
[3] 方东平,俞茂鋐.木结构古建筑结构特性的计算研究[J].工程力学,2001,(1):137-144.FANG Dongping,YU Maohong.Numerical analysis on structural characteristics of ancient timber architecture[J].Engineering Mechanics,2001,(1):137-144.(in Chinese)
[4] 周乾,闫维明,纪金豹.故宫太和殿抗震构造研究[J].土木工程学报,2013,46(S1):117-122.ZHOU Qian,YAN Weiming,JI Jingbao.Aseismic constitution components of Taihe Palace in the Forbidden City[J].China Civil Engineering Journal,2013,46(S1):117-122.(in Chinese)
[5] 张鹏程.中国古代木构建筑结构及其抗震发展研究[D].西安:西安建筑科技大学,2003:115.ZHANG Pengcheng.Study on structure and its seismic behavior development of Chinese ancient timber structure buildings[D].Xi’an:Xi’an university of architecture and technology,2003:115.(in Chinese)
[6] 童丽萍,邬伟进.太昊陵显仁殿结构动力性能分析[J].世界地震工程,2015,31(4):23-30.TONG Liping,WU Weijing.Dynamic performance analysis of the Xianren Temple in Taihao Mausoleum[J].World Earthquake Engineering,2015,31(4):23-30.(in Chinese)
[7] 张锡成.地震作用下木结构古建筑的动力分析[D].西安:西安建筑科技大学,2013:27-28.ZHANG Xicheng.Dynamic analysis of ancient timber-frame buildings under seismic excitations[D].Xi’an:Xi’an University of Architecture and Technology,2013:27-28.(in Chinese)
[8] 周乾,闫维明,周锡元,等.古建筑榫卯节点抗震性能试验[J].震动、测试与诊断,2011,21(6):679-684.ZHOU Qian,YAN Weiming,ZHOU Xiyuan,et al.Seismic behavior test of tenon joints in ancient buildings[J].Journal of Vibration Measurement & Diagnosis,2011,21(6):679-684.(in Chinese)
[9] 姚侃,赵鸿铁.古建木结构榫卯连接特性的试验研究[J].工程力学,2006,23(10):168-172.YAO Kan,ZHAO Hongtie.Experimental Studies on the Characteristic of Mortise-tenon Joint in Historic Timber Buildings[J].Engineering Mechanics,2006,23(10):168-172.(in Chinese)
[10] FANG DP,IWASAKI S,YU MH,et al.Ancient Chinese timber architecture-I:experimental study[J].Journal of Structural Engineering,2001,127(11):1348-1357.
[11] FANG DP,IWASAKI S,YU MH,et al.Ancient Chinese timber architecture-Ⅱ:dynamic characteristics[J].Journal of Structural Engineering,2001,(11):1358-1364.
[12] 中华人民共和国住房和城乡建设部.GB50011-2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.Ministry of Housing and Ruban-rural Development of the People’s Republic of China.GB 50011-2010 Code for seismic design of buildings[S].Beijing:China Architecture and Building Press,2010.(in Chinese)
[13] 童丽萍,王超级.秦氏旧宅厅堂木构架体系动力性能分析[J].建筑科学与工程学报,2014,31(2):37-44.TONG Liping,WANG Chaoji,Dynamic performance analysis of qin' s old dwelling hall with timber frame[J].Journal of Architecture and Civil Engineering,2014,31(2):37-44.(in Chinese)