FRP筋混凝土梁裂缝控制验算方法的研究  

Research on the Method of Checking Computations of Crack Control for Concrete Beam Reinforced with FRP Bars

作　　者：张鹏[1] 薛伟辰[2] 李冰[1] 邓宇[1] 

机构地区：[1]广西工学院土木建筑工程系,柳州545006 [2]同济大学土木工程学院,上海200092

出　　处：《武汉理工大学学报》2007年第7期89-91,共3页Journal of Wuhan University of Technology

基　　金：广西自然科学基金(桂科自0640031)

摘　　要：在试验及国外有关成果的基础上,提出了FRP筋混凝土梁的最大裂缝宽度计算公式;给出了能够用于工程实际的FRP筋混凝土梁最大裂缝宽度限值及使用荷载作用下FRP筋的允许应变限值的取值建议;指出在进行FRP筋混凝土梁截面的配筋设计时,很多情况下起控制作用的将是裂缝宽度的允许值而不是其极限强度。On the basis of experiments and relevant researches, calculation formula for maximum crack width of concrete beams reinforced with FRP bars was presented, the limit value of maximum crack width about concrete beams reinforced with FRP bars was obtained for use in engineering design, and recommendations on the permissible strain limit value for FRP bars under working load conditions as well. It was pointed that the allowable value for crack width played a important role in the control of the section design for the concrete beam reinforced with FRP bars instead of its ultimate strength.

关 键 词：纤维塑料筋(FRP) 混凝土梁 裂缝 控制 验算 

分 类 号：TU375[建筑科学—结构工程]