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介绍了体外横向预应力技术在某高架桥预应力混凝土装配式板梁加固中的应用。通过试验段加固前后两次静动荷载试验结果的对比分析,证明装配式板梁施加体外横向预应力的加固措施将有效地提高结构的整体性和刚度,加固效果显著。
The application of in vitro transverse prestressing technology to the reinforcement of prestressed concrete prefabricated prestressed concrete slab beams is introduced. Through the comparative analysis of the static and dynamic load test results before and after the test section reinforcement, it is proved that the reinforcement measures of the prefabricated lateral prestress by the prefabricated plate girder will effectively improve the structural integrity and stiffness of the prefabricated girder, and the reinforcement effect is remarkable.