Full Scale Loading Experimental Research On Assemble Monolithic Continuous Composite Slab

Assemble-monolithic concrete structure is the kind of structure system fitsconstruction industrialization by comparison with the traditional cast-in-situ concretestructure. Being a style of floor slab applied widely by this structure, assemble-monolithic concrete composite slab has many advantages, such as highly constructionmechanizing, nice monolithic performance and so on. So it is can adapt to the request ofconstruction industrialization. In order to optimize the structural design and constructionmethod, and promote the development of construction industrialization, It is necessaryto research the floor slab on working performance.Relating to the first precast assemble-monolithic concrete test building constructedby Vanke Co.,Ltd, the assemble- monolithic concrete composite slab will be studied infollowing parts.Firstly, by loading test on the first assemble concrete structure, the assemble-monolithic concrete composite slab's working performance, deformation characteristicand internal force distributing specialty have been analyzed.The test result indicates: Assemble- monolithic concrete composite slab has largeoverall stiffness, good whole working performance and small deflection; Assemble-monolithic concrete composite slab with "single-reinforced in precast slab,bidirectional-reinforced in cast-in-situ slab" doesn't only has the internal forceredistribution characteristic belongs to unidirectional slab, but also has certainbidirectional board stress characteristic.Secondly, the 3D finite element model of assemble- monolithic concrete compositeslab was established by ANSYS. Then, this paper analyzed the working performanceand deformation of slab under the testing state and compared the simulating result withthe testing result.Thirdly, referenced the correlativity between the section ductility and the relativeheight of pressed part, the coefficient of amplitude modulation of secondary loadingcomposite structure was deduced. Based on the consideration about each effect factoron coefficient of amplitude modulation, the paper suggests that the moment amplitudemodulation coefficient of assemble-monolithic composite slab should be 30%.