摘要
某刚架拱桥由于桥面板开裂较严重 ,造成桥的整体刚度下降 ,承载能力和安全性降低。通过增加桥的横向联系 ,置换全部桥面板并采用钢纤维混凝土浇筑面层 ,对拱顶部位粘贴玻璃纤维 -芳纶纤维混合织物进行加固。加固前和加固后的荷载试验表明 ,采用这种加固方案提高了桥的整体刚度和承载力 。
Bearing capacity and security decreased due to the loss of integral rigidity of rigid frame arch bridge caused by the crack of bridge deck concrete.This paper describes a example of strengthening bridge by increasing transverse connection,replacing whole bridge deck,using the steel fiber reinforced concrete as surfacing material and bonding glass\|kev fiber reinforced plastic on the vault.The test carrying out before and after strengthening shows the method is effective for enhancing integral rigidity and capacity of bridge.
出处
《工业建筑》
CSCD
北大核心
2002年第4期16-18,共3页
Industrial Construction
