采用一种预埋件的金属阻尼器中间柱型连接构件的受力性能研究  

Mechanical behavior of the intermediate column connecting member of metal damper with a type of embedded part

作　　者：冯无忌 许伟志[1] 杜东升[1] 戴轶苏 王曙光[1] FENG Wu‑ji;XU Wei‑zhi;DU Dong‑sheng;DAI Yi‑su;WANG Shu‑guang(College of Civil Engineering,Nanjing Tech University,Nanjing 211816,China;Shanghai Kunyi Seismic Damping Engineering Technology Co.,Ltd.,Shanghai 201114,China)

机构地区：[1]南京工业大学土木工程学院,江苏南京211816 [2]上海堃熠工程减震科技有限公司,上海201114

出　　处：《振动工程学报》2024年第8期1386-1396,共11页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(51678302);江苏省“六大人才高峰”计划资助项目(JY-022)。

摘　　要：消能减震技术能显著提高建筑物的抗震性能,消能器的效果依赖其与主体结构的有效连接,目前关于阻尼器与整体结构有效连接设计方法的研究不多。针对工程中金属阻尼器的中间柱型连接形式,本文提出一种带有预埋件的悬臂墙构造,并给出设计方法及其设计要点。为进一步验证该设计方法的可靠性,探究悬臂墙的受力性能,对两个试件开展拟静力单向加载和低周往复加载试验。研究结果表明,悬臂墙裂缝从预埋件连接处开始发展,最终破坏时墙角及预埋件核心区应力较大,增设暗梁暗柱可较好地提高悬臂墙的承载能力。型钢预埋件配合暗梁暗柱能使悬臂墙在设计尺寸较小的情况下承受较大的设计阻尼力,保证阻尼器充分发挥消能效果。Seismic energy dissipation technology can significantly improve the seismic behavior of building structure.The effect of the damper depends on its effective connection with the main structure,there are few researches on the effective connection design method between the damper and the whole structure at present.In this paper,a cantilever wall structure with a new type of embedded parts is proposed for the intermediate column connection of metal dampers in engineering,and the design method and key points are given.In order to further explore the reliability of the design method and investigate the mechanical properties of the cantilever wall,two specimens were tested under quasi-static unidirectional loading and low-cycle reciprocating loading.The results show that the cantilever wall cracks begin to develop from the joint of embedded parts,and the stress in the corner and the core area of the embedded parts is larger when it is destroyed.Adding hidden beam and hidden column can better improve the load carrying capacity of the cantilever wall.The new embedded parts can be combined with the hidden beam and hidden column to make the cantilever wall bear larger damping force under the condition of small size,and ensure the damper to give full play to the seismic energy dissipation effect.

关 键 词：消能子结构 金属阻尼器 中间柱型连接 设计方法 悬臂墙 

分 类 号：TU352.11[建筑科学—结构工程] TU318.1