碳纤维预应力棱柱体复合筋混凝土梁裂缝试验研究  

EXPERIMENTAL STUDY OF CRACK OF CFRP-PCPS COMPOSITES REINFORCED CONCRETE BEAMS

作　　者：张鹏[1] 刘闻冰 邓宇[1] 屈建[1] 郭加加[1] 余兆航 赵思敏[1] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《工业建筑》2015年第4期72-76,126,共6页Industrial Construction

基　　金：国家自然科学基金项目(51168006)

摘　　要：通过6根混凝土梁的抗弯静力加载试验,对碳纤维预应力棱柱体复合筋(CFRP-PCPs)混凝土梁在使用荷载作用下裂缝的分布及发展进行研究。考虑到CFRP-PCPs复合筋的影响,在我国现有《混凝土结构设计规范》相关计算方法的基础上,对CFRP-PCPs复合筋混凝土梁的裂缝间距和最大裂缝宽度计算式进行修正,并将所提出的算式的计算结果与试验结果进行了对比,分析结果表明计算值与试验值吻合程度较好。Based on the flexural static loading test of six concrete beams, the crack distribution and development of CFRP-PCPs （ carbon fiber reinforced plastics prestressed concrete prisms ） composites reinforced concrete beams under service load were researched.Considering the influence of CFRP -PCPs composites reinforcement, the calculation methods of maximum crack width and mean crack spacing of concrete beams with CFRP -PCPs composites reinforcement in current Chinese design code for concrete structures were modified.Whose results were compared with experimental results, showing a better agreement between test values and the calculated values given by the modified formulas.

关 键 词：CFRP-PCPs复合筋 钢筋混凝土梁 裂缝宽度 

分 类 号：TU375.1[建筑科学—结构工程]