（1 兰州交通大学甘肃省道路桥梁与地下工程重点实验室， 兰州 730070； 2 中铁四院集团西南勘察设计有限公司， 昆明 650206;3 兰州交通大学道桥工程灾害防治技术国家地方联合工程实验室， 兰州 730070)

［摘要］对35个沿水平灰缝开槽并后嵌不同强度砂浆的普通烧结砖砌体进行了沿通缝抗剪试验，分析了嵌缝砂浆砖砌体沿通缝抗剪破坏特征和抗剪强度特征，建立了嵌缝砂浆砖砌体沿通缝抗剪强度计算公式，公式的计算值与试验结果吻合较好。试验研究表明随着嵌缝砂浆强度的提高，砌体抗剪强度也随之提高，因此嵌缝砂浆能有效地提高砖砌体的抗剪强度。

［关键词］砌体结构； 嵌缝； 抗剪强度； 砂浆强度

中图分类号：TU502-6文献标识码：A文章编号：1002-848X(2020)06-0114-04

Research on shear performance of reinforced brick masonry by embedded mortar along horizontal bed joint

Wang Weiming1,2，  Liu Tingbin1， Zhang Jiawei3， Pan Lei1， Zhang Chenyu3

(1 Key Laboratory of Road & Bridges and Underground Engineering of Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, China; 2 China Railway Siyuan Group Southwest Survey and Design Co．，  Ltd．，  Kunming 650206, China; 3 National and Provincial Joint Engineering Laboratory of Road & Bridge Disaster Prevention and Control， Lanzhou [JZ]Jiaotong University, Lanzhou 730070, China)

Abstract:Shear tests were performed on 35 brick masonry specimens, which were slotted along horizontal joint and embedded in mortars of different strength. The shear failure characteristics and shear strength characteristics of masonry specimen were analyzed. The shear strength along horizontal bed joint formula of the masonry was established. The calculated values, which were generated by formula developed in this method, were consistent with the experimental results. Experimental studies shows that the shear strength of masonry was improved with the increase of the strength of mortar, so caulking mortar can improve the shear strength of masonry effectively.

Keywords:masonry structure；  embedded mortar along horizontal bed joint；  shear strength；  mortar strength

*甘肃省重点研发计划（17YF1GA004）。

作者简介：王伟明，硕士研究生，Email:1529544854@qq.com。