碳素纤维布加固混凝土梁的受弯承载力计算
- 摘 要
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李 源1 张保印2 刘 匀2 张兴虎2 王石生3（1 总后建筑工程研究所 西安 710032； 2 西安建筑科技大学 710055； 3 西安铁路分局 710050）
[提要] 对4根普通钢筋混凝土梁和3根预应力混凝土梁进行了加固后的弯曲试验研究。试验结果表明，碳素纤维布可明显提高梁的正截面抗弯承载力。提出的加固后混凝土梁的正截面抗弯承载力计算公式，计算值与试验值吻合较好。
[关键词] 碳素纤维布 混凝土 梁 加固 受弯承载力Concrete structure strengthened with carbon fiber reinforced plastic sheet( CFS) is a new retrofit method in the field of civil engineering. Three reinforced concrete beams and four prestressed concrete beams have been tested on bending strength. The experimental results show that the CFS can improve the bending strength of the beam obviously. The calculation formula of bending strength proposed shows good agreement with experimental data.
Keywords: carbon fiber reinforced plastic sheet; concrete; beam; strengthening; bending strength
