碳纤维预应力棱柱体复合筋混凝土连续梁裂缝试验研究及理论分析  

EXPERIMENTAL AND THEORETICAL RESEARCH ON CRACKS OF CFRP-PCPS COMPOSITE REINFORCED CONCRETE CONTINUOUS BEAMS

作　　者：张鹏[1,2] 钟卿瑜 邓宇[1] 刘闻冰 牟晓辉[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 [2]柳州师范高等专科学校,广西柳州545001

出　　处：《工业建筑》2015年第6期7-11,共5页Industrial Construction

基　　金：国家自然科学基金项目(51168006;51108099);广西自然科学基金青年项目(2012GXNSFBA053159)

摘　　要：通过对5根碳纤维预应力棱柱体复合筋(CFRP-PCPs)混凝土连续梁进行裂缝试验研究,在试验的基础上,提出CFRP-PCPs复合筋混凝土连续梁各控制截面处的平均裂缝间距与最大裂缝宽度的计算式。试验结果验证了理论算式的可行性,为CFRP-PCPs复合筋在工程中的实际应用提供理论支持。试验表明,CFRP-PCPs复合筋混凝土连续梁的裂缝发展状态与CFRP-PCPs复合筋的截面面积和预应力值大小有关。Five CFRP-PCPs composite reinforced concrete continuous beams under crack test were studied.On the basis of the tests, calculation formulas for average crack distance and maximum crack width of each controlled section CFRP-PCPs composite reinforced concrete continuous beams were presented.The test results verified the feasibility of the calculation formulas, which provided a theoretical support for the application of CFRP-PCPs in practical projects. The experimental results show that the crack development of CFRP-PCPs composite reinforced concrete continuous beams is related to the tension control stress and the cross-sectional area of the composite bar.

关 键 词：CFRP-PCPs复合筋 连续梁 裂缝 试验研究 

分 类 号：TU377.9[建筑科学—结构工程] TU599