Research On Flexural Behavior Of HPS-HSC Continuous Composite Beams

This paper comprehensively summarized the state of development of composite beams. Consults the STEEL STRUCTRUE DESIGN SPECIFICATION (GB 5007-2003) and correlative literature, this paper introduces the elastic and plastic analysis methods of the HPS-HSC continuous composite beams. In addition, the design of shear connectors and the calculation method of deformation and crack width are fully investigated. Focuses on the behavior of composite beams under negative moment and takes HPS 345W, HPS 485W and HSC80, C90, C100 as the main materials the paper analyses the flexural behavior of HPS-HSC continuous composite beams. The effects of the concrete grades, the height of the concrete flange plates, the ratio of longitudinal reinforcement and the cross-section types of steel girders on the ultimate flexural capacity of the HPS-HSC composite beams are discussed, which are compared with the common steel-concrete composite beams, and a reasonable composite beam of them is selected. Two examples of continuous composite beams are analyzed specifically in order to a further research of HPS-HSC continuous composite beams. At last, the results of finite element numerical and the theoretical results are comprised, and the flexural behavior of all composite beams is analyzed. From the analysis results, it is concluded that the simulation results are near to the theoretical results, and these results can be verified each other.There are 42 figures, 28 tables, 44 reference in this paper.