首页|采用自复位U形连接件的装配式钢框架-复合墙结构性能研究

采用自复位U形连接件的装配式钢框架-复合墙结构性能研究

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对于内填RC墙的框架结构,为有效减小结构的损伤,改善结构力学性能,本文研究了一种在框架与墙之间设置开缝并安装耗能连接件,能够耗散能量从而有效地保护主体结构.采用ABAQUS分析了不同类型耗能连接件的内力特性以及节点的受力破坏模式.通过在两侧开缝的密肋复合墙-钢框架结构中设置可滑移连接,实现了节点的耗能作用.研究结构表明:U形连接件水平段长度对连接件极限位移影响较大,可以通过双折线理想弹塑性荷载-位移曲线描述U形连接件在竖向压力与水平剪切作用下的荷载-位移关系.采用耗能连接件的结构在加载前期残余变形小,具有一定的自复位能力,并且能满足结构的大变形要求.通过以上分析,本文基于承载能力极限状态提出了耗能连接件的设计公式.
Performance of an assembled steel frame-composite wall structure with self-centering U-shaped connectors
To reduce the damage to a frame structure filled with a reinforced concrete wall and improve its mechani-cal properties,a gap was set between the frame and wall,where energy dissipation connectors were installed to pro-tect the main structure effectively.Therefore,ABAQUS was used to analyze the internal force and failure mode characteristics of different types of energy dissipation connectors.Typical slipping connectors were installed in slits on both sides of the steel frame-composite wall structure to dissipate energy.The results show that the length of the horizontal segment of the U-shaped connector greatly influences the ultimate deformation of the connector.The bi-linear ideal elastoplastic load-displacement curve of the U-shaped connector under vertical compression and horizon-tal shear represents a load-displacement relationship.The residual structural deformation with energy dissipation connectors is small at a relatively small drift ratio,indicating a good self-centering performance.Moreover,it can satisfy the requirement of large structural deformation.The design formulas of energy dissipation connectors were proposed according to the limit state of a load-bearing capacity based on the analysis results.

U-shapedconnectorsself-centering performanceforce modecalculation of bearing capacityhyster-etic curveprefabricated structureframe-composite wallseismic performance

龚超、贾明明、刘信

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中冶建筑研究总院(深圳)有限公司,广东 深圳 518055

哈尔滨工业大学 结构工程灾变与控制教育部重点实验室,黑龙江 哈尔滨 150090

哈尔滨工业大学 土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江 哈尔滨 150090

哈尔滨工业大学 土木工程学院,黑龙江 哈尔滨 150090

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U形连接件 自复位性能 受力模式 塑性损伤 滞回曲线 装配式结构 框架-复合墙 抗震性能

国家钢结构工程技术研究中心开放基金项目国家自然科学基金面上项目

YZB2017Ky0151978220

2024

10.11990/jheu.202108025

哈尔滨工程大学学报
哈尔滨工程大学

哈尔滨工程大学学报

CSTPCD北大核心
影响因子：0.655
ISSN：1006-7043
年,卷(期)：2024.45(2)
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