建筑结构学报2011，Vol.32Issue(2)：134-140,7.
GFRP筋地下连续墙混凝土板受弯性能试验研究及有限元分析
Experimental study and finite element analysis on flexural behavior of diaphragm wall reinforced with GFRP bars
朱大宇 1顾浩声 2陈传灿3
作者信息
- 1. 同济大学,高等技术学院,上海,200092
- 2. 同济大学,土木工程学院,上海,200092
- 3. 同济大学,汽车学院,上海,200092
- 折叠
摘要
Abstract
In order to understand the flexural behavior of diaphragm wall reinforced with GFRP bars, flexural tests were carried out on concrete slabs reinforced with GFRP bars and steel bars, respectively.The deformation process and failure mode of specimens were examined.Through comparison and analysis of deflection, cracking load, ultimate load and strain of concrete between two types of concrete slabs, it is found that the force-deformation curve of concrete slab reinforced with GFRP bars can be divided into two stages.The strain distributions of both types of slabs essentially complied with the plane section assumption before concrete cracks.However, the deflection of concrete slab reinforced with GFRP bars increases much faster after cracking than that of concrete slab reinforced with steel bars, and the increment speed changes very little.The cracking loads of both types of slabs are very close, while the ultimate load of concrete slab reinforced with GFRP bars is 1.2 times of that of concrete slab reinforced with steel bars.Based on the test results, finite element models are established for concrete slabs with different GFRP reinforcement ratios.Parameter analysis shows that the flexural rigidity of concrete slab reinforced with GFRP bars increases with the reinforcement ratio after cracking.关键词
地下连续墙/GFRP筋/配筋率/静力试验/有限元分析/受弯性能分类
建筑与水利引用本文复制引用
朱大宇,顾浩声,陈传灿..GFRP筋地下连续墙混凝土板受弯性能试验研究及有限元分析[J].建筑结构学报,2011,32(2):134-140,7.
