机制砂高韧性混凝土加固普通烧结砖墙抗震性能研究  

Seismic behavior of ordinary sintered brick wall strengthening with machine-made sand high ductility concrete

作　　者：涂开胜 朱国良 陈尚伟 高文艺 聂晓鹏 孔德文 吴俊男 TU Kaisheng;ZHU Guoliang;CHEN Shangwei;GAO Wenyi;NIE Xiaopeng;KONG Dewen;WU Junnan(Guizhou Zhongjian Architectural Research and Design Institute Co.Ltd.,Guiyang 550006,China;College of Civil Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州中建建筑科研设计院有限公司,贵州贵阳550006 [2]贵州大学土木工程学院,贵州贵阳550025

出　　处：《新型建筑材料》2025年第1期72-78,共7页New Building Materials

基　　金：国家自然科学基金项目(51968009);中建四局科技研发项目(CSCEC4B-2022-KTA-6)。

摘　　要：通过对未加固砖墙、钢筋网水泥砂浆单面加固砖墙以及机制砂高韧性混凝土(MSHDC)单、双面加固砖墙进行低周往复试验,分析了试件的破坏形态、滞回性能、耗能机理。结果表明,MSHDC加固面层可以有效改善墙体破坏形态,相较于未加固和钢筋网水泥砂浆加固试件的突然脆性破坏,MSHDC面层加固试件的裂缝开展缓慢,墙体的最终损伤较小。MSHDC加固面层可以有效提高墙体抗震性能,相较于未加固试件,钢筋网水泥砂浆单面加固试件、MSHDC单面加固试件和MSHDC双面加固试件的峰值荷载分别提高227%、95%、368%,峰值位移分别提高118%、30%、156%,耗能分别提高362%、139%、434%。The damage patterns,hysteretic properties,and energy dissipation mechanisms of the specimens were analysed by performing low circumferential reciprocation tests on unreinforced brick walls,reinforcing mesh cement mortar single-face reinforced brick walls,and MSHDC single-face or double-face reinforced brick walls.The test results show that MSHDC reinforced surfaces can effectively improve the damage pattern of the wall,compared with the sudden brittle damage of the unreinforced and reinforced mesh-cement mortar reinforced specimens,the cracks of the MSHDC surfaces reinforced specimens proceeded slowly,and the final damage of the wall was smaller.The MSHDC reinforced surfaces can effectively enhance the seismic performance of the wall.Compared with the unreinforced specimens,the peak load of the cement mortar single-faced reinforced specimens,MSHDC single-faced reinforced specimens,and MSHDC double-faced reinforced specimens were increased by 227%,95%,and 368%,respectively,the peak displacements were increased by 118%,30%,and 156%,respectively,and the energy consumption was increased by 362%,139%,and 434%,respectively.

关 键 词：普通烧结砖砖墙 机制砂高韧性混凝土 拟静力试验 加固 抗震性能 

分 类 号：TU522[建筑科学—建筑技术科学]