High performance grouting material hollow hinge joints in hinged slab bridge maintenance technology research
[1]Yan Weihong,Fu Lijun,Zhao Jun.High performance grouting material hollow hinge joints in hinged slab bridge maintenance technology research[J].Journal of Zhengzhou University (Engineering Science),2016,37(04):77-81.[doi:10.13705/j.issn.1671-6833.2016.04.017]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 04
Page number:
77-81
Column:
Public date:
2016-08-31
- Title:
- High performance grouting material hollow hinge joints in hinged slab bridge maintenance technology research
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2016.04.017
- Abstract:
- In order to study the repair and reinforcement effect of high-performance grouting materials in the hinge joints of hollow slab bridges, a full-scale test of high-performance grouting materials for repairing the hinge joints of hollow slab bridges was carried out by taking three 30-meter-span hollow slab girders removed from the real bridge as objects. Research. Through the concentrated loading of the mid-span mid-span of the prefabricated hollow slab bridge composed of three hollow slabs after hinge joint repair, the load-deflection curves of each slab girder were measured and analyzed, and the failure mode of the test was given. Test results It shows that the deflection changes of each plate girder are basically the same at the initial stage of loading, and the overall performance of each plate girder is good; the failure form in the limit state is the longitudinal brittle cracking failure of the joint surface between the grouting material and the plate girder; The overload reserve for the design load is 1.74.
- References:
- -
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