复合材料筋混凝土梁裂缝开展试验分析及宽度计算  

Experimental Study on Cracking Development and Crack-width Calculation of FRP Rods Reinforced Concrete Beams

作　　者：郜传省 王燕[2] 徐新生[2] 

机构地区：[1]济南五峰山旅游开发有限公司,济南250307 [2]济南大学土木建筑学院,济南250022

出　　处：《高科技纤维与应用》2009年第2期22-25,29,共5页Hi-Tech Fiber and Application

基　　金：济南大学博士基金项目(XBS0838)

摘　　要：分析了光圆GFRP筋混凝土梁和螺纹状表面粘砂CFRP筋、GFRP筋混凝土梁的开裂机理、裂缝开展过程、开裂形态、配筋率等因素对裂缝宽度和裂缝间距的影响,同时对ACI440.1R-01推荐的裂缝宽度计算公式与其他公式进行了对比和验证。结果表明:ACI440.1R-01公式预测值与试验值吻合较好,并推荐了该公式有关参数的取值。This paper analyzes the cracking mechanism, cracking development, cracking pattern, the influence of ratio of bar arrangement on the crack width and crack spacing of in the concrete beams reinforced by smooth round GFRP bar, surface-adhering-sand screw-thread-form CFRP （Carbon Fiber Reinforced Polymer） bar and GFRP （Glass Fiber Reinforced Polymer） bar, respectively. The calculation formula of crack width recommended in ACI440.1R-01 was verified and compared with other formulae. The results show that the predicted values based on ACI440.1R-01 fit better with the experimental data, and hence recommend the parameters in the formula.

关 键 词：复合材料筋 混凝土梁 裂缝:试验 

分 类 号：TU375.1[建筑科学—结构工程]