| the PC box-grider with Corrugated steel webs has been widely used at home and abroad,good structural performance, save material, appearance, etc. has been recognized by the people. However, most studies focus on the new bridge in terms of static, fatigue study area. Shear bond portfolio as an important part of the bridge and its direct impact on the fatigue performance of fatigue performance of the entire bridge structure. The main purpose of this paper is to study the improved fatigue performance embedded shear bond fatigue failure mechanism and some of the main factors.This paper briefly discusses the development and research of fatigue shear connector PC composite box girder with corrugated steel webs, but also introduces the principle of the calculation of some fatigue analysis. On this basis, according to the introduction of the test method, the S-PBL and i embedded shear connector buried in the same size, the three groups were fatigue comparative tests. The test results prove that the principle is similar to the destruction of the two shear key, steel is most likely to occur through the destruction of the site, but the improved fatigue performance embedded shear bond better.Then, using the finite element software Midas/FEA for specimens of two shear connectors were calculated and analyzed, and the results are consistent with experimental results. Conclusions and finite element binding test of the two methods can be found, the main factors affecting the fatigue performance embedded shear connector bond research methods, structural parameters, concrete strength and ultimate bearing capacity, the disadvantage will affect research methods accuracy of the results, within a certain range, anti-fatigue properties is directly proportional to the back of the three parameters and embedded shear connector. |
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