高延性水泥基复合材料加固空斗墙抗震性能试验研究  

EXPERIMENTAL RESEARCH ON ASEISMIC PERFORMANCES OF ROWLOCK WALLS STRENGTHENED WITH ECC

作　　者：周铁钢[1] 王鑫[1] 张再昱 马奔 朱瑞召 邓明科[1] ZHOU Tiegang;WANG Xin;ZHANG Zaiyu;MA Ben;ZHU Ruizhao;DENG Mingke(School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《工业建筑》2021年第9期132-137,共6页Industrial Construction

基　　金：国家科技支撑计划项目(2014BAL06B03);陕西省重点科技创新团队计划项目(2014KCT-31);陕西省重点研发计划项目(2020ZDLNY06-03)。

摘　　要：为改善具有中国传统特色的空斗墙民居的抗震性能,采用高延性水泥基复合材料(ECC)对墙体两面进行抹面加固,分为边框式、边框+十字式和全抹面式等加固方案。共设计4片墙体,采用拟静力试验对不同ECC加固方案的效果进行研究,分析不同加固方案的破坏机理和抗震性能。试验结果表明:ECC与空斗墙体具有良好的黏结性能,两者能够共同抵抗水平荷载;采用ECC加固后的墙体在承载能力、变形能力和耗能能力等方面均有所提升;边框式加固墙体的延性变形能力最优,且初始刚度较大;十字式加固墙体的耗能能力最优,滞回环面积饱满;全抹面式加固墙体具有最好的承载能力,相应的开裂荷载也较高。所提出的三种加固方案均有不同的优点,可根据实际工程需要进行选用。In order to improve the aseismic performances of Chinese traditional dwellings constructed with rowlock walls,the high ductility cement-based composite(ECC) was used to strengthen the two sides of the walls,and the reinforcement schemes could be divided into frame plastering reinforcement,framed cross-plastering reinforcement and full plastering reforcement.A total of 4 walls were fabricated and studied by quasi-static tests.The effects of different reinforcement schemes with ECC were studied,and the failure mechanisms and aseismic performances of different reinforcement schemes were analyzed.The test results showed that the bonding properties between ECC and rowlock walls were good,ECC and rowlock walls could resist horizontal load cooperative.The bearing capacity,deformation capacity and energy-dissipation capacity of walls strengthened with ECC were improved.The frame-plastering reinforced wall showed the best ductile deformation capacity and larger initial stiffness.The framed cross-plastering reinforced wall showed the best energy-dissipation capacity and the best hysteretic characteristics.The full plastering-reinforced wall showed the best bearing capacity and higher cracking capacity.The three reinforcement schemes had different advantages and could be selected according to needs in the actual engineering.

关 键 词：空斗墙 耗能能力 拟静力试验 抗震性能 高延性水泥基复合材料 

分 类 号：TU352.11[建筑科学—结构工程]