FRP加固实心黏土砖短柱轴心受压试验研究  被引量:9

Experimental study of the axial compression of short columns of solid clay bricks strengthened with FRP sheets

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作  者:刘新强[1] 刘明[2] 由世岐[1] 

机构地区:[1]辽宁省建设科学研究院,辽宁沈阳110005 [2]沈阳建筑大学,辽宁沈阳110168

出  处:《土木工程学报》2009年第10期1-7,共7页China Civil Engineering Journal

基  金:辽宁省自然科学基金(20022005);国家科技支撑计划课题(2006BAJ03A01-05)

摘  要:通过40根横向粘贴FRP布加固实心黏土砖方柱及4根对比柱的轴心受压试验和理论分析的结果,比较分析不同FRP材料、不同长细比和不同FRP加固量等参数对加固砖柱的承载力、延性和破坏形态的影响,确定FRP布约束实心黏土砖方柱在轴心受压作用下的计算模型,并提出FRP布约束实心黏土砖方柱的承载力计算方法,计算结果与试验结果吻合较好,研究结果可供工程应用参考。40 square-section columns made of solid clay bricks with Fiber Reinforced Plastic (FRP) confinements and 4 other columns for comparison were tested under axial compression. The effects of different FRP materials, different length/width ratios, the amount of FRP and other parameters on the bearing capacity, ductility, and failure mode of the strengthened columns were analyzed. Theoretical analysis was performed, and a calculation model was presented for predicting the ultimate strength of square-section solid clay brick columns confined with FRP, which is shown to be in good agreement with the experimental data.

关 键 词:FRP 轴心受压 短柱 承载力 延性 

分 类 号:TU362[建筑科学—结构工程]

 

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