Research On Interaction Performance Of Multi-Functional Vibration-Absorption Enclosure Walls Structures

In order to explore the Multi-functional vibration-absorption enclosure walls structure brittleness of compressive stress on the interaction performance. The mutual effect of Multi-functional vibration-absorption enclosure walls structure under the action of minor earthquakes was analyzed and studied in this paper. The Multi-functional vibration-absorption enclosure walls structure was studied by means of theoretical analysis, experiment research, and simulation analysis under the action of minor earthquakes. The main research contents and achievements are summarized as follows:(1) The Multi-functional vibration-absorption enclosure walls structure test model was established, and the experimental analysis was carried under horizontal load force. Through experimental analysis, it was found that the lateral displacement of enclosure walls to column was obvious. The lateral displacement of loaded column and none loaded column was almost the same, namely contraction distortion of crossbeam could be ignored. So the deformation coordination hypothesis theory was verified to be correct. Through the analysis of the stress distribution of brittle fittings in the structural system, the stress of the brittle test specimen increased with the increase of external load, and they had a linear relationship. The stress on brittle test specimen were related with stiffness ratio of wall column.With the increase of stiffness, the load shared by brittle test specimen also increased, and the external load shared by the second floor was greater than that shared by the first floor.(2) Through the theoretical research, according to structure characteristics of the filling wall and outer frame of the Multi-functional vibration-absorption enclosure walls structure, the mutual effect calculation model of this structure was reasonable simplified, and the calculation model under minor earthquakes(horizontal load) was put forward. The multifunctional wall structure of horizontal displacement and the component stress expression were established by the analysis of deformation coordination principle of junction between frame column and filler wall and frame beam. The distribution of the force and influencing factors of the filling wall and frame column under horizontal load were determined preliminarily. They are stiffness of components; and Retaining wall height to width ratio, etc.(3) The numerical model that was same with test and theory analysis, and three layers double span and five layers three spans model was established with the application of finite element analysis software SAP2000, and they were analyzed. Through the compared analysis of simulation model and test model of single span, the lateral displacement trend of loaded column and none loaded column both increased gradually. The filled wall was good for the improvement of the whole stiffness, and the greater the stiffness of wall was, the more obvious the effect was. Stress and load force on the finite element model of brittle was analyzed, and it was found that brittle thing force increased with the increase of applied load. And the greater the stiffness of enclosure wall was, the greater the force value that the brittle thing born. By comparing the simulation value and experiment analysis, the slightly different was exist between the results of the simulated values and the tested values. But change trend was same and the differences in the range of allowable error. Therefore, correctness of the simulation analysis was verified. By compared simulation and theoretical analysis of single layer single span, the validity of theoretical derivation formula was verified. By compared simulation analysis of three layers double span and five layers three span, the force of the brittle at different floors were: the stress of the middle layer was almost the same remove except the top and the bottom layer. The stress on the top layer was in the middle of the first span, and the stress of other spans were all smaller than the middle layer, and the top force values decreased gradually from the first across. The stress on the brittle at the bottom almost the same, but compared with the middle layer its value was smaller. When thicknesses of the walls were different, namely the wall column stiffness ratio changed, the bigger the stiffness of the wall column was, the greater the force on the brittle was in the same position.