宋代殿堂木构架动力响应的非线性变参数时程分析  

Nonlinear Variable Parameter Time History Analysis on Dynamic Response of Timber Frame in Song Dynasty Palace

作　　者：万佳[1] 郭人辅 米晓琛 魏剑伟[1] 李铁英[1] WAN Jia;GUO Renfu;MI Xiaochen;WEI Jianwei;LI Tieying(College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China;The Bartlett School of Architecture,University College London,London WC1E 6BT,UK)

机构地区：[1]太原理工大学土木工程学院,太原030024 [2]伦敦大学学院巴特莱特建筑学院,伦敦WC1E 6BT

出　　处：《太原理工大学学报》2021年第3期466-472,共7页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金项目资助(51338001,51278324)。

摘　　要：为了探究宋代殿堂木构架在水平加速度下的动力响应,建立了非线性时程分析模型,改变水平加速度峰值和柱底摩擦系数,探究宋代殿堂构架的初始运动状态。结果表明,宋代殿堂木构架有4种运动状态:相对静止,相对滑移,摇摆和滑移摇摆。宋代殿堂木构架柱的整体滑移只在柱底摩擦系数小于径高比时发生;当地面摩擦系数大于径高比时,柱由柔性弯曲向刚体摇摆过渡,两柱的底部滑移和柱身的摇摆具有一致性。In order to study the dynamic response of timber frame in Song Dynasty palace under horizontal acceleration,a series of nonlinear time-history analysis FE models were estallihed.The parameter analysis of the timber frame in Song Dynasty palace by peak horizontal acceleration and column bottom friction coefficient was conducted.The results show that there are four dynamic responses of the timber frame in Song Dynasty palace:rest,slide,pure-rocking,and slide-rocking.The overall slide of the column of timber frame in Song Dynasty paplace only occurs when the friction coefficient of the column bottom is less than the diameter-to-height ratio;When the friction coefficient of column bottom is greater than the diameter-to-height ratio,the column rock mechanism changes from flexible bending to rigid body rocking.The slip values and rotation values of two column are consistent in FE models.

关 键 词：中国传统木结构 滑移 摇摆 时程分析 宋代 殿堂 

分 类 号：TU366.2[建筑科学—结构工程]