Frame Supported Multi-ribbed Composite Wall Shaking Table Test And Seismic Performance Evaluation

Frame supported multi-ribbed composite wall structure is a new type of structural system which is composed of lower frame and the upper part of multi-ribbed composite wall. In the frame multi-ribbed composite wall structure, the multi-ribbed composite wall is one of the main stress components, multi-ribbed composite wall has the characteristics of light weight, good entirety, higher bearing capacity and good energy dissipation capacity, etc. Multi-ribbed composite wall filling block, multi-ribbed frame and invisible framework has overall performance of certain, and under the action of earthquake to occur gradually damage and consume the earthquake energy, so as to change the vibration characteristics of the structure, and improve the seismic performance of the structure.On the basis of summarizing the relevant results, using the method of shaking table test, the finite element simulation and theoretical analysis to make a systematic research about the seismic performance for the frame supported multi-ribbed composite wall structure.This paper completed the main research work is as follows:1. The shaking table test about seismic performance for the frame supported multi-ribbed composite wall structure. Making a shaking table test for a 1/6 scale structure model, testing the dynamic characteristics of the structure, damping ratio and acceleration and displacement response at all levels of earthquake. Study on damage mechanism of model structure and damage mode. Test results show that the model structure can satisfy the seismic fortification target established,and has good seismic performance and safety reserve.2. Elastic-plastic time-history analysis of the frame supported multi-ribbed composite wall structure. The nonlinear finite element analysis of the shaking table model is carried out, using ABAQUS finite element software,research the dynamic characteristics of the model structure, under the different seismic structural displacement response, acceleration response and test data were compared. Experimental and theoretical analyses obtained similar results.The finite element analysis model verified the rationality and accuracy. At the same time, this simplified analysis model is also in a certain extent reduces the structural seismic performance analysis of difficulty and time-consuming, provide a more convenient way of analysis to the actual engineering application.3. Modal analysis and design calculation method for the study of the frame supported multi-ribbed composite wall structure. The structure of the modal analysis, the natural frequency of extraction of the three orders, the frequency of the finite element results and the experimental test results, the error is in the allowable range, The rationality and accuracy of the finite element model is further explained; In order to facilitate the structure analysis and design calculation, give a simplified elastic frame supported multi-ribbed composite wall structure calculation model, and a simplified formula, by the comparison and analysis of real cases, prove this simplified model and formula of the accuracy and rationality; A lot of details of the structure of the frame supported multi ribbed composite wall in the design and structure of the structure are discussed.4. The research about the frame supported multi-ribbed composite wall structure based on seismic performance analysis. The seismic performance of the frame supported multi-ribbed composite wall is analyzed by using the performance-based seismic design theory, and focuses on the method of incremental dynamic analysis (Incremental Dynamic Analysis, shorter form IDA) method, selection of peak ground acceleration (Peak Ground Motion Acceleration, shorter form PGA) is chosen as the ground motion parameter (Intensity Measure, shorter form IM), selection of maximum story drift angle theta as seismic damage parameters (damage measure, shorter form DM), using Origin software of data processing a plurality of IDA curves of discrete results point interpolation and fitting. Through the IDA curves of the structure model of statistical analysis respectively, obtained the structure of 16%,50%and 84%of the curve, due to the small dispersion between the points of a curve, so the structure is a better seismic performance. Divided the performance level of the structure of the damage state, and to determine the value of the corresponding ability, and then from was evaluated based on the performance-based seismic design philosophy of structure seismic performance.In conclusion, this article tests and analysis the seismic performance of frame supported multi-ribbed composite wall from three angles which are shaking table test, the finite element simulation and the angle of incremental dynamic analysis.Meanwhile, a simplified calculation model of frame supported multi-ribbed composite wall structure has been established and verified, provided systematic theoretical reference and design basis for frame supported multi-ribbed composite wall structure theory research and engineering design.