【摘要】 提出了古木结构建筑采用基于位移的抗震加固方法,通过限制水平地震作用下结构的最大侧移和最大滑移而防止结构倒塌,其中最大侧移限值由结构的最大水平惯性力及其自身抗倾覆条件确定,最大滑移限值为柱基础半径。根据最大侧移限值并考虑古木结构建筑的特殊性,确定了在罕遇地震作用下的目标位移角及相应的目标刚度。最后分析了构架刚度下对古木结构建筑侧移和滑移的影响,认为适当加大刚度对建筑是有利的。研究结果可为古木建筑的抗震加固提供科学依据。更多还原

【Abstract】 Displacement-based seismic strengthening method for Chinese ancient timber buildings(CATB)is proposed to prevent collapse,which is for limiting the maximum lateral displacement and sliding displacement of the building under horizontal earthquake.The maximum limited lateral displacement is based on the maximum horizontal inertia force and turning moment resistance capacity of the building,and the radius of plinth of the building is specified as the maximum limited sliding displacement.The target displacement angle and target rigidity are defined according to the maximum limited lateral displacement and the peculiarity of CATB.The influence of stiffness of the building to the lateral displacement and sliding displacement is analyzed,and the result shows that it is benefit to CATB to appropriately increase the lateral stiffness.It provides theoretical base for the seismic strengthening of CATB.更多还原