摘要
针对某地对现有梁桥采用喷射混凝土加固处理,研究了锚喷加固后的效果,并对采用不同加固方案加固后桥梁的挠度、纵横向应变进行了对比研究。发现喷射混凝土加固的效果明显,采用将梁底锚喷层沿桥纵向做成3块单向板的加固方案加固的桥梁,不仅能增强各主梁横向联系,改善荷载横向分布状况,还能有效的降低横向应变。结果表明,喷射混凝土加固的梁桥具有很高的强度,使该桥的使用功能得到提高。
An existed bridge was strengthened with sprayed-concrete. The bearing capacity of the bridge after reinforced by sprayed-concrete was studied. It was found that it could improve bridge loading dint effectively. If the sprayed-concrete is made into three singled-direction planks, it not only builds up the contact between each beam, but also improves the condition of the load landscape-orientation distributing, and reduces the landscape orientation strain effectly. The results indicate that the sprayed-concrete satisfies the demand of the contented current usage in that bridge function. The bridge reinforced by sprayed-concrete have a very strong vitality. 5 tabs, 8 figs, 6 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第6期39-42,共4页
Journal of Chang’an University(Natural Science Edition)
关键词
桥梁工程
荷载
喷射混凝土
加固
结构
应变
bridge engineering
load
sprayed-concrete
reinforcement
structure
strain
