装配式混凝土剪力墙-梁钢套筒节点性能试验研究

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发布时间：2020-01-06 00:00:00

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装配式混凝土剪力墙-梁钢套筒节点性能试验研究

Experimental study on the performance of steel sleeve joints of prefabricated concrete shear wall-beam

2024年第2期

装配式墙-梁连接节点；预埋螺杆；钢套筒；抗震性能

Prefabricated wall-beam joint; Embedded bolt; Steel sleeve; Seismic performance

2024年第2期

10.19761/j.1000-4637.2024.02.070.06

国家自然科学基金项目（51878522）。

吴东平，周禹，李成玉*

武汉科技大学城市建设学院，湖北武汉 430065

吴东平，周禹，李成玉*

吴东平,周禹,李成玉.装配式混凝土剪力墙-梁钢套筒节点性能试验研究[J].混凝土与水泥制品,2024(2):70-75.

WU D P,ZHOU Y,LI C Y.Experimental study on the performance of steel sleeve joints of prefabricated concrete shear wall-beam[J].China Concrete and Cement Products,2024(2):70-75.

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1000

摘要：为研究螺栓连接的装配式剪力墙-梁节点的抗震性能，提出了一种在剪力墙内预埋高强螺杆，然后通过钢端板与混凝土梁连接的节点，设计了3组缩尺装配式试件与1组缩尺现浇试件，并对其进行了拟静力试验，研究分析了节点的破坏形态、滞回曲线、骨架曲线、刚度退化、耗能能力等。结果表明：3组装配式试件的滞回曲线呈“弓形”，且装配式试件的峰值承载力比现浇试件提升了8.42%~21.05%，位移延性系数在4.28~4.66之间，等效黏滞阻尼系数均在0.18~0.24之间，证明了该装配式节点具有良好的抗震能力和变形能力。 Abstract: In order to study the seismic performance of bolt-connected prefabricated shear wall-beam joints, a joint with a high strength screw embedded in the shear wall and then connected with a concrete beam through a steel end plate was proposed. Three sets of reduced scale prefabricated specimens and one set of reduced scale cast-in-place specimens were designed and the pseudo-static tests were carried out. The failure mode, hysteretic curve, skeleton curve, stiffness degradation and energy dissipation capacity of the joint were studied and analyzed. The results show that the hysteresis curves of the three groups of assembled specimens are "bow", the peak bearing capacity of the assembled specimens is increased by 8.42%~21.05% compared with the cast-in-place specimens, the displacement ductility coefficient is between 4.28~4.66, and the equivalent viscous damping coefficient is between 0.18~0.24, indicating that the assembled joints have good seismic resistance and deformation ability.

英文名 : Experimental study on the performance of steel sleeve joints of prefabricated concrete shear wall-beam

刊期 : 2024年第2期

关键词 : 装配式墙-梁连接节点；预埋螺杆；钢套筒；抗震性能

Key words : Prefabricated wall-beam joint; Embedded bolt; Steel sleeve; Seismic performance

刊期 : 2024年第2期

DOI : 10.19761/j.1000-4637.2024.02.070.06

文章编号 :

基金项目 : 国家自然科学基金项目（51878522）。

作者 : 吴东平，周禹，李成玉*

单位 : 武汉科技大学城市建设学院，湖北武汉 430065

吴东平，周禹，李成玉*

吴东平,周禹,李成玉.装配式混凝土剪力墙-梁钢套筒节点性能试验研究[J].混凝土与水泥制品,2024(2):70-75.

WU D P,ZHOU Y,LI C Y.Experimental study on the performance of steel sleeve joints of prefabricated concrete shear wall-beam[J].China Concrete and Cement Products,2024(2):70-75.

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摘要

参数

结论

参考文献

引用本文

Abstract: In order to study the seismic performance of bolt-connected prefabricated shear wall-beam joints, a joint with a high strength screw embedded in the shear wall and then connected with a concrete beam through a steel end plate was proposed. Three sets of reduced scale prefabricated specimens and one set of reduced scale cast-in-place specimens were designed and the pseudo-static tests were carried out. The failure mode, hysteretic curve, skeleton curve, stiffness degradation and energy dissipation capacity of the joint were studied and analyzed. The results show that the hysteresis curves of the three groups of assembled specimens are "bow", the peak bearing capacity of the assembled specimens is increased by 8.42%~21.05% compared with the cast-in-place specimens, the displacement ductility coefficient is between 4.28~4.66, and the equivalent viscous damping coefficient is between 0.18~0.24, indicating that the assembled joints have good seismic resistance and deformation ability.

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