玻璃纤维聚合物约束混凝土方柱简化分析模型  

Simplified analytic models for GFRP-confined concrete square columns

作　　者：周长东[1] 黄承逵[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室

出　　处：《哈尔滨工业大学学报》2004年第5期637-641,651,共6页Journal of Harbin Institute of Technology

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20010141017).

摘　　要：为了简化纤维聚合物约束混凝土方柱的计算和分析,进行了51根(17组)方柱试验,试验主要考虑了混凝土强度、纤维布粘贴形式、纤维布数量以及纤维布条之间的间距对约束效果的影响.提出了一种两阶段简化分析模型来确定约束混凝土应力应变关系曲线,所得的计算值与试验结果基本吻合,证明了这种简化分析模型的可靠性.To simplify the analysis and the computation of the concrete square columns confined with fiber reinforced polymer jackets, experiments on 51 (17 groups) square columns were conducted. The main factors which are considered to affect the confinement of concrete are as follows: grades of concrete, bonding forms, amounts of GFRP jackets, and space of fiber strips. A simplified two-stage analytic model is introduced to predict the stress-strain relationship of square columns confined with FRP, and good agreement between test and computation results is obtained. The usefulness of the proposed model is proved by the test results.

关 键 词：玻璃纤维聚合物 约束混凝土方柱 本构关系 混凝土强度 纤维布数量 

分 类 号：TU375.3[建筑科学—结构工程] TU317.1