古建筑木构架抗震性能试验
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摘要
为保护古建筑,采用低周反复加载试验方法,以故宫太和殿某开间梁柱尺寸为原型,制作了3组1:8的缩尺比例的4梁4柱模型,考虑榫卯节点形式为燕尾榫,进行了低周反复加载试验,研究了古建筑木构架的抗震性能,获得了构架的P-Δ曲线,分析了构架的骨架曲线、耗能能力、刚度退化及变形能力,归纳了构架恢复力拟合曲线计算公式。结果表明:古建筑木构架的P-Δ滞回曲线为Z形,具有明显的捏拢特性;随着构架侧移增大,其侧移刚度降低,耗能能力趋于稳定;另一方面,构架具有良好的变形能力。
To protect Chinese ancient building aseismic behaviors of Chinese ancient wooden structure were studied by experiments.Based on actual sizes of some part of Tai-He Palace in the Forbidden City,3 wooden frame models with a scale of 1:8 of the prototype structure were built considering Yan-wei type of tenon-mortise connections.By low cyclic reversed loading tests P-hysteretic curves as well as skeleton curves of the models were obtained;By analysis their energy dissipation capability,stiffness degradation,deformation performance as well as restoring force model were also studied.Results show that P-hysteretic curve of Chinese ancient wooden structure is of Z shape with obvious rheostriction property;With the increase of lateral displacement,its stiffness tends to decrease,its energy dissipation capability tends to be stable;On the other hand,the structure has good deformation performance.
To protect Chinese ancient building aseismic behaviors of Chinese ancient wooden structure were studied by experiments.Based on actual sizes of some part of Tai-He Palace in the Forbidden City,3 wooden frame models with a scale of 1:8 of the prototype structure were built considering Yan-wei type of tenon-mortise connections.By low cyclic reversed loading tests P-hysteretic curves as well as skeleton curves of the models were obtained;By analysis their energy dissipation capability,stiffness degradation,deformation performance as well as restoring force model were also studied.Results show that P-hysteretic curve of Chinese ancient wooden structure is of Z shape with obvious rheostriction property;With the increase of lateral displacement,its stiffness tends to decrease,its energy dissipation capability tends to be stable;On the other hand,the structure has good deformation performance.
引文
[1]Chang Wen-Shao,Hsu Min-Fu,Komatsu Kohei.Rotational performance of traditional Nuki joints with gap I:theory and veri-fication[J].Journal of Wood Science,2006,52:58-62.
[2]Chang Wen-Shao,Hsu Min-Fu.Rotational performance of traditional Nuki joints with gap II:the behavior of butted Nuki joint and its comparison with continuous Nuki joint[J].Journal of Wood Science,2007,53:401-407.
[3]高大峰,赵鸿铁,薛建阳,等.中国古建木构架在水平反复荷载作用下的试验研究[J].西安建筑科技大学学报:自然科学版,2002,34(4):317-324.
[4]赵鸿铁,张海彦,薛建阳,等.古建筑燕尾榫节点刚度分析[J].西安建筑科技大学学报:自然科学版,2009,41(4):450-454.
[5]宾慧中,路秉杰.浅识宋材份制与清斗口制[J].安徽建筑,2003(3):1-2.
[6]谢启芳,赵鸿铁,薛建阳,等.中国古建筑木结构榫卯节点加固的试验研究[J].土木工程学,2008,41(1):28-34.
[7]于业栓,薛建阳,赵鸿铁.碳纤维布及扁钢加固古建筑榫卯节点抗震性能试验研究[J].世界地震工程,2008,24(3):112-117.
[8]葛鸿鹏.中国古代木结构建筑榫卯加固抗震试验研究[D].西安:西安建筑科技大学,2004:32-33.
[9]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2003.
[10]谢启芳.中国木结构古建筑加固的试验研究及理论分析[D].西安:西安建筑科技大学,2007.
[2]Chang Wen-Shao,Hsu Min-Fu.Rotational performance of traditional Nuki joints with gap II:the behavior of butted Nuki joint and its comparison with continuous Nuki joint[J].Journal of Wood Science,2007,53:401-407.
[3]高大峰,赵鸿铁,薛建阳,等.中国古建木构架在水平反复荷载作用下的试验研究[J].西安建筑科技大学学报:自然科学版,2002,34(4):317-324.
[4]赵鸿铁,张海彦,薛建阳,等.古建筑燕尾榫节点刚度分析[J].西安建筑科技大学学报:自然科学版,2009,41(4):450-454.
[5]宾慧中,路秉杰.浅识宋材份制与清斗口制[J].安徽建筑,2003(3):1-2.
[6]谢启芳,赵鸿铁,薛建阳,等.中国古建筑木结构榫卯节点加固的试验研究[J].土木工程学,2008,41(1):28-34.
[7]于业栓,薛建阳,赵鸿铁.碳纤维布及扁钢加固古建筑榫卯节点抗震性能试验研究[J].世界地震工程,2008,24(3):112-117.
[8]葛鸿鹏.中国古代木结构建筑榫卯加固抗震试验研究[D].西安:西安建筑科技大学,2004:32-33.
[9]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2003.
[10]谢启芳.中国木结构古建筑加固的试验研究及理论分析[D].西安:西安建筑科技大学,2007.
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