Research On Slab Assembled By Triangle Concrete Component

Triangle concrete assembled slab is researched in this paper. Assembled slab form monolayer plane grid structure through reinforcement concrete beam. Light-weight concrete hollow slab is filled in triangle district. This kind of structure is used for template, the concrete is poured on the template to form integrated slab. The supported column can be freely disposed. It can form ample residence shape. On the other hand, it includes two kinds of the structure; it can quicken procedure of construction.The program is edited through APDL language in ANSYS. Through the abundant operation, the influencing law of bend stiffness, torsion stiffness, supported condition and dimension is obtained. The results show that the bend stiffness and torsion stiffness have remarkable affect when it is in the range of 1.0×107-1.0×1011(N·mm/rad).It approaches pin-joint when the bend stiffness is small, and it approaches rigid joint when the bend stiffness is big.The 3D separated reinforcement concrete mode is set up through ANSYS in the analytic course, the raised segment the constitutive model of concrete adopts the formation in the Code for design of concrete structures GB 50010 2002, and, the dropping segment adopts the Hongnestad method; reinforcement bar adopts ideal elastoplastic constitutive model. Through non-linear analysis of the reinforcement concrete beam, the moment and corner curve is obtained; the initial stiffness is 2.7×109 N·mm/rad.it proves that the joint is the semi-rigid.The mode of semi-rigid joint is set up through two kinds of method, they is carried out by ANSYS and the finite element program PZLB. The matrix27 element is introduced in ANSYS; the amended stiffness matrix is introduced in PZLB. Through the easy example, the result of the PZLB is compared with hand calculation; it proves the trueness of PZLB. Through the comparison of the result between ANSYS and PZLB, it proves two kinds of method are true and feasible.The maximum dimension of the assembled slab is make sure through ANSYS in the different bound condition, it provide evidence of the application of the assembled slab.