铰接空心板简支梁桥加固维修方法的研究与实践

发布时间：2018-08-01 10:15

【摘要】：随着经济的不断发展,我国桥梁事业得到了长足的进步,其中预制空心板桥由于工艺简单、施工难度小、造价低廉等优点在中小跨径的桥梁中获得广泛应用。大量工程实践表明,空心板桥自身的构造特点和施工工艺也导致了各种病害的产生,严重影响影响了桥梁的承载能力和耐久性能,因此,深入研究其病害机理、并针对不同形式的病害讨论其加固维修方法、对确保空心板桥的受力安全十分重要。本文结合擦耳大桥的加固维修工程开展了以下研究工作:对空心板梁桥整体受力、常见病害、病害成因、病害程度划分方法以及加固维修方法进行了分析与总结。通过常规检测、静力荷载试验、动力荷载试验,对桥梁技术状况进行了评定。针对桥梁病害的实际情况,设计了桥梁的加固维修方案,通过计算分析和成桥试验对桥梁加固维修效果进行了验证。
[Abstract]:With the continuous development of the economy, the bridge undertakings in China have made great progress. The precast hollow slab bridge has been widely used in the small and medium span bridges because of its simple technology, small construction difficulty and low cost. A large number of engineering practices have shown that the structure characteristics and construction technology of the hollow slab bridge have also caused various diseases. It has a serious influence on the bearing capacity and durability of the bridge. Therefore, it is very important to study the mechanism of the disease and to discuss the reinforcement and maintenance methods for different types of diseases. The following research work is carried out on the reinforcement maintenance project of the bridge: the hollow slab beam bridge. The overall stress, the common disease, the cause of the disease, the classification of the disease degree and the reinforcement and maintenance method are analyzed and summarized. The bridge technical condition is evaluated through the conventional test, the static load test and the dynamic load test. In view of the actual situation of the bridge disease, the reinforcement and maintenance scheme of the bridge is designed, and the calculation analysis and the analysis are made. The effectiveness of bridge reinforcement is verified by the completion test.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U445.7

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