剪力墙连梁阻尼器双阶屈服消能设计  

Two-level yield energy dissipation design of coupled beam damper for shear wall

作　　者：董连成[1] 李保宽 李长凤[1] Dong Liancheng;Li Baokuan;Li Changfeng(School of Architecture&Civil Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China)

机构地区：[1]黑龙江科技大学建筑土木工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2020年第2期225-230,共6页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省自然科学基金面上项目(E2016063)。

摘　　要：针对可更换连梁在小震作用下的屈服与耗能问题,采用反应谱法和动力时程法,提出了一种带双阶屈服阻尼器的可更换连梁。对带原混凝土连梁和可更换连梁的联肢剪力墙结构,经模态分析,偏差在合理范围内,证明了刚度计算公式合理。基于双阶屈服可更换连梁设计目标,选择参数λi和γi控制双阶阻尼器第1、2阶屈服力,αi控制双阶阻尼器第2阶刚度。结果表明,阻尼器参数的合理取值范围分别为0.4≤λi≤0.6,0.2≤αi≤0.6,0.4≤γi≤0.6。该研究可保证结构安全。This paper proposes a kind of replaceable coupling beam with two-level yield damper to address the yield and energy dissipation of the replaceable coupling beam under minor earthquake.The application of the response spectrum method and dynamic time history method for the shear wall structure with original concrete coupling beam and replaceable coupling beam,the use modal analysis,and the consequent realization of the deviation within a reasonable range validate the stiffness calculation formula.The study based on the design goal of two yield replaceable coupling beam involves selecting the parametersλi andγi to control the first and second order yield forces of the double yielding damper,and selectingαi to control the second order stiffness.The calculation results show that the reasonable range of damper parameters is respectively:0.4≤λi≤0.6,0.2≤αi≤0.6,0.4≤γi≤0.6,and the research could ensure the safety of the structure.

关 键 词：双阶屈服阻尼器 连梁刚度 消能设计 动力时程分析 

分 类 号：TU398.2[建筑科学—结构工程]