Study Of Mechanical Behavior Of Fly Ash Plate Sandwich The Polyurethane Composite Insulation Infilled Frames

Improve the thermal performance of the maintenance of the structure is one of the important means to reduce the total social energy consumption. Filled Polyurethane in wall not only can improve Thermal insulation properties but also be able to long-term effective use without special maintenance in late.Thus, the research and development of the wall have a great social significance and can bring a great of economic benefits.This test mainly use the abandoned coal ash plate as the skeleton of the wall. And filled Polyurethane in the cavity between internal and external page wall to form composite wall insulation assembly with concrete frame. Finally, study the mechanical properties in horizontal cyclic test. In this paper,the following studies include:(1) Designed two single-span concrete frame, and filled with fly ash plate sandwich polyurethane composite insulation wall, Comparative analysis of the seismic performance of two different aspect ratio. Studies have shown that:Such infilled frame is "strong framework, weak infill walls" type, the specimen has a good capacity of energy dissipation and smaller Aspect Ratio the worse ductility,this wall system is difficult to repaired after the earthquake,so it would be inappropriate for the earthquake-prone area. in order to ensure uniformity of Wall wallboard force need to strengthen the walls with the framework of the connection, Proposed to use a higher intensity of the mortar layer connection.(2) Through stress analysis based on the test results, proposed a Computational model:infill walls replaced with equivalent constraint body, Get restoring force model through the fixed-point method and tangent stiffness method, Use the stiffness of the restoring force model propose a improvements equivalent support model. Finally, programmed the model data into sap2000For further analysis(3) Through pushover analysis three storey, six storey and nine storey concrete frame in sap2000, Analysis showed that the:The greater fill rate and the closer between the basis and wall geometric centroid the smaller the period of the structure, The plastic hinge of frame distribution reasonable, Story drift meet the requirements, good seismic performance.