Mechanical Properties Analysis Of The Cast-in-place Hollow Floor With Dense Rid

The cast-in-place hollow floor with dense rid is ingenious in forms, a kind of new structural style, which can make floor structure realize bidirectional stress truly as well as overcome construction's shortcoming of other hollow floor and has been applied wide spread. But its design method is not still very mature. Combined with some experimentations of the cast-in-place hollow floor with dense rid, some studies on this floor have been carried out in this thesis. The valuable results achieved are outlined as follows:1. Some studies about the hollow floor's working performance under vertical load have been done by three hollow floor's components including withdrawal resistance, local resist compression, inner force and deformation and their limit bearing capacity under uniformly distributed load.2. The nonlinear analysis of 3×2 hollow floor's component has been done under vertical uniformly distributed load by the soft ANSYS. To checkout the test's correctness the developed situation in different stage has been simulated.3. The cast-in-place hollow floor with dense rid is simulated by the normal isotropic sandwich plate which is made by the upper and nether epidermal and mid layer. The continuously analysis of the floor is considered by the transverse shear deformation of the simulating plate.4. The elementary analysis about the geometrical parameter influences of plate thickness and breadth of rib beam on mechanical properties of the thin-wall core box cast-in-site concrete hollow floor is also made. A single geometrical parameter on mechanical properties of such floor system is set forth and the fitting scale for these parameters is determined to provide the reference when designing.