收稿日期: 2012-09-12
修回日期: 2012-10-30
网络出版日期: 2013-02-01
基金资助
国家“十一五”科技支撑计划项目( 2009BAJ28B02)
Seismic Performances of Masonry Walls Strengthened with BasaltFiber-Reinforced Polymer
Received date: 2012-09-12
Revised date: 2012-10-30
Online published: 2013-02-01
Supported by
国家“十一五”科技支撑计划项目( 2009BAJ28B02)
雷真 周德源 王继兵 . 玄武岩纤维增强材料加固砌体砖墙的抗震性能[J]. 华南理工大学学报(自然科学版), 2013 , 41(3) : 43 -49,75 . DOI: 10.3969/j.issn.1000-565X.2013.03.007
This paper deals with the strengthening effect of basalt fiber-reinforced polymer ( BFRP) for masonrywalls based on the low-cyclic loading tests of masonry walls before and after the strengthening in a mixed configuration.In the investigation,first,the effects of reinforcement amount and pre-damage condition before the strengtheningon the seismic performances of masonry walls are discussed.Then,the ultimate bearing capacity,ultimatedrift,hysteresis and skeleton curves,stiffness degradation and BFRP strain of different strengthened walls are comparedand analyzed.The results show that the strengthening with BFRP helps to improve the ultimate bearing capacityand seismic performances of masonry walls,that the strengthened specimens exhibit a flexural-dominant failuremode,with the compressive strength of masonry being the main controlling factor of the shear capacity of thestrengthened walls,and that the degradations of bearing capacity and stiffness of BFRP-strengthened masonry wallsare both significantly postponed.
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