无粘结、半粘结碳纤维板材加固混凝土梁桥对其结构受力影响的分析研究

To Analyze and Study Influence of Unbonded and Half-bonded Carbon Fiber Sheet Reinforced Concrete Beam Bridge on Its Structure Stress

由于结构胶的耐久性,施工工艺、施工质量,力学特性等原因使粘贴加固材料和混凝土之间存在着无粘结现象。混凝土结构从有粘结逐渐发展成为半粘结、无粘结构件。以碳纤维板加固RC梁的试验为依托,同时以粘贴碳纤维板加固某桥梁为工程实例,总结有粘结、无粘结、半粘结加固材料对桥梁加固的差异性,供相关工程技术人员参考。

There is the unbonding phenomenon between the bonded reinforced material and concrete because of the durability,construction technology,construction quality,mechanical properties etc.of the structural adhesive.The concrete structure is increasingly developed from the bonded to the half-bonded and the unbounded components.Based on the test of carbon fiber sheet reinforced concrete beam,and taking the bonded carbon fiber sheet to reinforce a bridge as the engineering case,the article sums up the differences of the bonded,unbonded and half-bonded reinforced materials to reinforce bridges,which can be referred for the relative engineering and technical personnel.