FRP加固砖砌体抗压强度的试验  

Experimental Investigation into Compressive Performance of Brick Masonry Reinforced with FRP

作　　者：刘明[1] 龚苏平[1] 刘新强[2] 由世岐[2] 陀源 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]辽宁省建设科学研究院,辽宁沈阳110005 [3]中国建筑工程总公司中山分公司,广东中山528400

出　　处：《沈阳建筑大学学报（自然科学版）》2006年第5期732-735,共4页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省自然科学基金(20022005)

摘　　要：目的研究FRP(纤维增强材料)加固砖砌体的抗压强度,提出依据块体、砂浆强度和考虑FRP布约束的FRP加固砌体抗压强度的计算方法.方法对15个试件采用分级加荷载的方法进行抗压强度试验.结果粘贴FRP布砌体的抗压强度可提高20%,FRP的种类和粘贴层数对提高砌体抗压强度影响不大.结论CFRP(碳纤维布)与GFRP(玻璃纤维布)加固砌体的承载力基本相同,选择加固砌体材料时,重点应考虑纤维布的经济性,且宜选用单层加固.The paper studies the compression strength of masonry strengthened by FRP sheets. Based on the grade of unit, mortar and the confining action of FRP, a calculation method was put forward. A total number of 15 specimens were tested up to study the calculation method. The results indicated that the compression capacity has an increase of twenty percent, and the types of fibers and the number of layers have little relation with the improvement of masonry compression capacity. Masonries have the same performance either reinforced by CFRP or GFRP. Economy should be considered first when choosing the reinforcing material. When selecting FRP, single layer should be used.

关 键 词：FRP(纤维增强材料) 砌体结构 抗压强度 混凝土结构加固 CFRP(碳纤维布) GFRP(玻璃纤维布) 

分 类 号：TU522.1[建筑科学—建筑技术科学]