建筑结构学报2025，Vol.46Issue(2)：39-49,11.DOI:10.14006/j.jzjgxb.2024.0154
正交胶合木墙体-柔性支撑框架协同抗侧性能研究
Synergistic lateral resistance performance of cross-laminated timber walls and tension-only braced frames
摘要
Abstract
To improve the performance of laminated timber frame structure systems,a beam-through steel-timber hybrid structure combining tension-only bracing and cross-laminated timber(CLT)walls for synergistic lateral resistance was proposed.To investigate the synergistic lateral resistance mechanism between CLT walls and tension-only braced frames,low-cycle repeated loading tests were conducted on two CLT wall-tension-only bracing composite frames.Furthermore,the impact of the lateral stiffness ratio between the CLT wall and the tension-only braced frame,as well as the rotational stiffness ratio between the CLT wall and the steel coupling beam,on synergistic lateral resistance was studied using finite element methods.The experimental results indicate that the failure sequence of the components in the composite frame follows the order of tensile yielding of the tension-only bracing,cracking at the ends of the glulam columns,and failure of the hold-down connections of the CLT wall.The tension-only bracing primarily functions during the elastic phase of the composite frame,while the CLT wall bears more than 50％of the horizontal force during the elastic-plastic phase of the composite frame.The finite element results indicate that when the lateral stiffness ratio between the CLT wall and the tension-only braced frame exceeds 0.055,the proportion of horizontal load borne by the CLT wall exceeds 25％.Additionally,when the rotational stiffness ratio between the CLT wall and steel coupling beam ranges from 0.52 to 0.84,the composite frame can maintain a strong column-weak beam failure mode while fully utilizing the load-bearing capacity of the CLT wall.关键词
钢-木混合结构/正交胶合木/柔性支撑/拟静力试验/协同抗侧性能Key words
steel-wood hybrid structure/cross-laminated timber/tension-only brace/quasi-static test/synergistic lateral resistance performance分类
土木建筑引用本文复制引用
高原,宋晓滨..正交胶合木墙体-柔性支撑框架协同抗侧性能研究[J].建筑结构学报,2025,46(2):39-49,11.基金项目
国家自然科学基金项目(52178243). （52178243）
