双曲拱桥采用碳纤维加固的结构计算

A Structure Calculation of Carbon Fiber Sheet Strengthening Method Adopted in Double-curved Arch Bridge

某三跨双曲拱桥采用碳纤维和粘钢加固,通过有限元软件建模计算分析桥梁加固前后结构内力,结果表明碳纤维增强和粘钢技术对桥梁的承载能力提高明显。加固后的大桥承载能力极限状态和正常使用极限状态均能满足规范要求。

A three-span & double-curved arch bridge is adopting carbon fiber sheet and bonding steel strengthening methods.With a modeling by finite element software,the bridge structure internal force before and after strengthening is calculated and analyzed,the results show that carbon fiber sheet and bonding steel technology can improve the bearing capacity obviously.And the strengthened bridge's bearing capacity both can meet the standard under ultimate state and normal state.