Pseudo-static Test And Seismic Performance Analysis On Cast-in-situ Concrete Hollow Slab Column Structure

Reinforced concrete hollow slab-column structure is a new structure that appears in recent years, which can meet the demand of high rise building with big column grid, wide interspace and large space,and can meet the demand of flexible application space for the owners. On the other hand ,the technical and economic indexes of hollow slab-column structure showing wide application prospect are obviously higher than other types of building floor-system. As a kind of new structure, however, there is still obvious difference on the working performance , mechanism of destruction and the seismic performance of hollow slab-column structure due to the influence of factors (the theoretical analysis,the level of engineering practice,and the experimental conditions) .Based on the experimental model a two-span hollow slab-column structure, Pushover model of hollow slab-column structures is established,and anti-earthquake performance of six -floor hollow slab-column structure is analyzed by capacity spectrum method. The main research contents are as follows:1.A model test of two-span hollow slab-column structures is finished. Through the experiment under low cyclic and horizontal load , the crack development situation and deformation of the structure are observed under the lateral loads, deformation and strain of the structures are measured and analyzed ,and structural distortion characteristic is summarized.2. According to FEMA356, the frame column of hollow slab-column structure is set the hinge moment of axial force, and concealed beam is set hinge moment .The author establishes the Pushover integral calculation model and analyzes it, and obtains several results :the order that plastic hinge appears , the position of structural weak point ,and the basal shear force-displacement curve. Through the analysis of experimental data, the result reached is quite agreeable to the actual data, and which verifies the correctness of the model Pushover.3.The author expatiates the seismic theory based on performance in detail,adopts Pushover integral calculation model,and analyzes and evaluates the anti-earthquake performance of a six-story hollow slab-column structure by capacity spectrum method.