摘要
基于5根不同张拉控制应力和不同截面面积的CFRP-PCPs复合筋混凝土梁在低周反复荷载作用下的试验,对比试验梁的裂缝分布与发展,在GB 50010—2010《混凝土结构设计规范》计算裂缝宽度的基础上,对平均裂缝间距和最大裂缝宽度计算公式进行参数修正,提出CFRP-PCPs复合筋混凝土梁在低周反复荷载下最大裂缝宽度计算公式,对比表明,试验结果与计算值吻合较好。
Based on the tests of different tension control stress, pre-compressive strength and different cross-sectional dimension of 5 CFRP-PCPs composite reinforced concrete beams under low cyclic loading.It was compared the characteristics of fracture distribution and development.Considering the calculation method for crack width in the current national standard “ Code for Design of Concrete Structuses ” （ GB 50010-2010 ） and according to experiments, the formula for calculating maximum crack width of the reinforced concrete beams of CFRP-PCPs under low cyclic loadings was given.The comparison showed that the test results agreed well with the calculated values.
出处
《工业建筑》
CSCD
北大核心
2014年第10期16-20,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)
