Experimental study on flexural behavior of monolithic precast concrete shear walls with mortise-tenon joints

被引：0

作者：

Liu J.-L. ^{[1
]}

Wang B.-M. ^{[1
]}

Chu M.-J. ^{[2
]}

Wang B. ^{[1
]}

Zhang P.-F. ^{[2
]}

An N. ^{[3
]}

Li X.-B. ^{[2
]}

机构：

[1] Dalian University of Technology, School of Civil Engineering, Dalian

[2] Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing

[3] School of Civil Engineering, Yantai University, Yantai

[4] Shandong Aikefu Building Technology Co., Ltd, Yantai

来源：

Gongcheng Lixue/Engineering Mechanics | 2021年 / 38卷 / 11期

关键词：

Axial compression ratio; Connection behavior; Flexural capacity; Monolithic precast concrete shear walls; Mortise-tenon joint;

D O I：

10.6052/j.issn.1000-4750.2020.10.0740

中图分类号：

学科分类号：

摘要：

Four monolithic precast concrete shear walls with mortise-tenon joints were designed, and the effect of axial load ratio on mechanical behavior has been investigated under cyclic loading. The results show that the flexural failure mode is exhibited in damaged walls in these tests. Due to the precast concrete spalling at the root of transverse protrusion of mortise-tenon joint, the crushing areas of concrete at the root of shear walls become smaller to avoid the abrupt bearing capacity loss. The mortise-tenon joints can ensure the reliable connection between different precast concrete slabs, and the cracking displacement angles of shear wall specimens are 1/780~1/560. With the increase of axial load ratio, the precast concrete spalling at the root of transverse protrusion of mortise-tenon joint is aggravated, but the crushing areas of concrete at the root of shear walls have no increase. Even though the experimental axial load ratio is 0.3 (design axial load ratio is 0.54), the concrete at the root of shear walls is not crushed in failure state and the specimen still has good deformation capacity under high axial load ratio. As a conclusion, with the increase of axial load ratio, the flexural capacity and stiffness will increase, but the stiffness degradation rate will accelerate after peak load, and the displacement ductility will decrease. © 2021, Engineering Mechanics Press. All right reserved.

引用

页码：79 / 87

页数：8

共 15 条

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