摘要
通过建立FRP加固RC梁的有限元模型,对预应力HFRP加固RC梁跨中挠度进行参数化分析,研究了不同荷载大小,不同胶层弹性模量及厚度、不同加固形式和不同预应力大小的作用下,RC梁跨中挠度的变化情况。结果表明:预应力HFRP可减小RC梁跨中挠度,并增强加固效果。
Through establishment of FE model, the mid-span deflections of RC beams strengthened by Pre-stressed HFRP are parametric analyzed under the conditions of different load cases, different Young＇ s modulus and thickness of adhesive, different style of strengthened, different prestressing force. The results show that the mid span deflection of RC beams is reduced by strengthened with pre-stressed HFRP which improve the strengthening effect.
出处
《低温建筑技术》
2009年第3期30-32,共3页
Low Temperature Architecture Technology
基金
国家自然科学基金资助项目(10802023)
关键词
HFRP
混杂加固
预应力
跨中挠度
HFRP
hybrid strengthening
prestressing force
mid-span deflection
