Applied Research On Steel Mesh-Concrete Sandwich Panels To Low-rise Residential Buildings

At present, the construction of rural houses in our country are mostly low-rise residential buildings. With the pushing of new countryside construction, low-rise residential buildings will also become the representative of the new rural image in the new era. In the environment of actively promoting the reform of wall, building energy saving in China, traditional manual methods like the Qin Han watt brick will change to the housing industrialization. And the development of low-rise residential industrialization of system must be accompanied by a wall materials innovation. The EVG-3D construction system from Austria is built directly using its unique3D structure wall as the bearing structure, which perfectly fit the requirements of developing low-rise residential industrialization of system. Panels of the structure system all adopt steel mesh cement sandwich panels. This wall is always used as partition wall, when used as the bearing structure, further research is needed to determine its bearing capacity.In this paper, we use the finite element software ANSYS to analyse and research nonlinear mechanical properties of the steel mesh concrete sandwich panel. Through simulation of the existing experiment and comparison of results, verify the accuracy of ANSYS simulation, which makes the simulation results of mechanical properties of EVG-3D panel more persuasive.In order to understand the stress characteristics of EVG-3D better, we respectively establish8models to simulate its bending capacity and axial compressive bearing capacity. Systematic analysis were done on the influence of factors to the performance, which include concrete thickness, concrete strength grade, polystyrene core plate thickness and panel length. By analyzing, these conclusion are obtained:(first),as the transverse bearing structure:The bearing capacity and stiffness of the panel slightly improve along with the increasing of concrete grade; The concrete thickness plays a vital role in the bearing capacity of the panel; With the increase of the span of the3D panel, the bearing capacity will rapidly fall, so it should not be used for large space structures.(second),as the vertical bearing structure:The axial compressive bearing capacity of3D panel completely satisfies the demand of EVG-3D structure; Under certain conditions of the slenderness ratio, its axial compressive bearing capacity increases with the increasing of concrete strength grade; Increases with the increasing of concrete thickness and polystyrene panel thickness, decreases with the increasing of panel slenderness ratio.