Concrete Creep Reseach Of The Composite Beam After Considering Shear Slip

Steel-concrete composite structure is a new type of structure that developed on the basis of steel and concrete. It is a kind of modern beams which induces to steel and reinforcement concrete slab composite with shear connectors to work together. The outstanding pressure properties of concrete and the superior tension properties of steel can be fully used by this structure. It has advantages of Great Stiffness, good ductility, high bearing capacity, saving materials and so on, At the same time to overcome their shortcomings. Therefore, Its Working performance better and give full play their respective superiority than single-material structure. Not only does it have a better structural performance and the use of performance, but also has better economic, Thus has been widely application.Concrete creep on the impact of steel-concrete composite beam internal forces show that the development of creep is restrained from the steel beam leads to the difference with the concrete beam on the same condition. And concrete creep also have an impact to composite beam slips, Transfer surface of the slip can change the stiffness and intensity of composite beam, so The influence of creep on composite steel-concrete beam is more complex.This paper provides a detailed analysis of Shear slip and strain difference at simply supported composite beams the transfer surface under the concentrated load after consideration of concrete creep. And put forward to transfer surface shear slip equation under the concentrated load after consideration of concrete creep. Moreover Comparison of theoretical calculated values and the known experimental data, proved the correctness of the theory proposed by the author through the analysis of the Midas mold. The full article is divided into four chapters totally, among them, chapter 3 and 4 are textual core parts.