钢筋混凝土梁碳纤维布补强破坏试验研究

Study of Carbon Fiber Cloth Reinforcing Destructive Test for Steel Reinforced Concrete Beam

该文通过对三种不同的钢筋混凝土试验梁进行静载破坏试验,分别获得了未贴碳纤维布、贴一层碳纤维布及贴两层碳纤维布三种试验梁的试验结果。对各试验梁的极限荷载、破坏状况、混凝土应变、挠度以及裂缝进行了分析研究。试验结果表明:试验梁贴碳纤维布后,其开裂荷载、极限荷载均有显著提高,挠度明显减小。该试验成果在实桥加固中进行了成功应用。

Through the static load destructive test of three different steel reinforced concrete test beams,the test results of three test beams separately of no-pasted carbon fiber cloth,1-layer pasted carbon fiber cloth and 2-layer pasted carbon cloth are given.The article analyzes and studies the ultimate load,destructive status,concrete strain,deflection and crack of three test beams.The test result makes clear that the cracking load and ultimate load of the test beam after pasted of the carbon fiber cloth are all obviously enhanced,and the deflection is remarkably decreased.This test achievement has been successfully applied in the reinforcing practice of the bridge.