保温叠合剪力墙FRP连接件力学性能  

Mechanical Properties of Thermal Insulation Composite Shear Wall Connectors FRP

作　　者：徐海东 张玉敏 徐振华 XU Hai-dong;ZHANG Yu-min;XU Zhen-hua(College of Civil and Architectural Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China;Hebei Earthquake Engineering Research Center,Tangshan Hebei 063009,China)

机构地区：[1]华北理工大学建筑工程学院,河北唐山063210 [2]河北省地震工程研究中心,河北唐山063009

出　　处：《华北理工大学学报（自然科学版）》2025年第1期70-78,共9页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：河北省自然科学基金项目(23130215E):单面叠合剪力墙新型GFRP连接件拉结性能研究。

摘　　要：以夹心保温叠合剪力墙为研究对象,研究螺纹型、矩形和六芒星状3种纤维增强复合材料连接件(FRP)在施工阶段和使用阶段下的抗剪力学性能,并且对三种FRP连接件在两个阶段下的破坏形态、抗拔承载力和荷载-位移曲线进行分析,结果表明:试件的破坏形态主要有混凝土锚固破坏,层间剪切破坏和断裂破坏。施工阶段下单根FRP连接件最终抗剪承载力在1.41~3.91 kN之间,使用阶段下单根FRP连接件最终的抗剪承载力在3.19~6.02 kN之间,根据理论公式得到的计算值与试验值对比可知,在两个阶段情况下3种连接件的安全系数均大于1,均有较大的安全储备,可以应用到实际工程中。The study focuses on the mechanical performance of threaded,rectangular,and hexagram-shaped fiber-reinforced polymer(FRP)connectors in sandwich insulation composite shear walls under pull-out and shear conditions.The research analyzes the failure modes,pull-out capacity,and load-displacement curves of these three types of FRP connectors.The failure mode of the pull-out specimens is predominantly characterized by concrete cone failure,while the shear specimens exhibit failure modes including concrete anchorage failure,shear failure,and connector fracture.A comparison between theoretical calculations and experimental results indicates that the safety factors for all three connectors under both pull-out and shear conditions are greater than 1,demonstrating a significant safety margin,making them suitable for practical engineering applications.

关 键 词：叠合剪力墙 纤维增强复合连接件 夹芯保温 剪切承载力 

分 类 号：TU375[建筑科学—结构工程]