Experimental study on seismic behavior of recycled concrete brick walls under freeze-thaw cycles

被引：0

作者：

Zheng, Shansuo ^{[1
]}

Shang, Xiaoyu ^{[1
]}

Zhang, Kui ^{[1
]}

Liang, Xianfeng ^{[1
]}

Ma, Delong ^{[1
]}

机构：

[1] School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2015年 / 36卷 / 03期

关键词：

Freeze-thaw cycles; Quasi-static test; Recycled concrete brick wall; Seismic performance;

D O I：

10.14006/j.jzjgxb.2015.03.008

中图分类号：

学科分类号：

摘要：

Behavior of four recycled concrete brick (RCB) wall models under freeze-thaw cycles was investigated by low cycle reversed loading test and FEA, in order to study on the effect of freeze-thaw cycles on seismic behavior of RCB wall and assess the capacity of existing masonry building. Failure modes of RCB walls were described, meanwhile shear capacity, stiffness, ductility and hysteretic energy were analyzed. It indicates that the failure modes of RCB walls under freeze-thaw cycles are different from intact ones in terms of the earlier occurrence and faster development of cracks. The cracks of walls under freeze-thaw cycles mainly take place in the interface between brick and mortar, especially for the development of main cracks accompanied with more micro-crack and show worse damage. However the cracking of intact walls is in the brick. Shear strength, stiffness, deformation and hysteretic energy of RCB walls decline with the increase of freeze-thaw cycles. The ultimate capacity, initial stiffness, energy dissipation and tensile deformation reduces by over 30%, 40%, 70% and 80% respectively when freeze-thaw cycles reach 120. ©, 2015, Science Press. All right reserved.

引用

页码：64 / 70

页数：6

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