| Multi-ribbed Composite Wall Structure(MRCWS) is a new kind of passive control structures system which has a good anti-seismic capacity and prospects. Many important substantive results on theory and applied research have been gained. However, there are still many problems to be explored on energy dissipation mechanism and energy seismic design methods. In this paper, considering the characteristics of the Multi-ribbed Composite Wall (MRCW), several important issues of energy dissipation mechanism and energy seismic design are explored. Include the impact of composite material performance on the deformation and forced of MRCW, the energy dissipation mechanics of MRCW in elastic-plastic stage, analysis of structural seismic response of energy, and design method of energy seismic and so on. Finished work as following:1. Based on earlier period experiment, multi-ribbed composite wall destruction characteristics and destruction process were analyzed. Established the finite element model of the wall, then analyzed force and distortion performances of spatial frame-space , packing brick frame-space, and different intensity packing material wall. Made the foundation for further research on structure energy dissipation mechanic.2. Based on forced characteristics of the MRCW, proposed its energy dissipation mechanic in elastic-plastic stage. Carry on analysis on the relations between the computation parameter of hysteretic model and the material performance. Produces the compound wall class to consume energy the installment attachment damping formula.3. Using time-history analysis method, established and solved single-degree freedom system and multi-degrees of freedom system energy equation of MRCWS, and wrote compute program for this. According to analyze program, analyzed the seismic motion peak value, the frequency spectrum characteristic, the structural damping, and hysteretic model how to influenced dissipation energy distribution of structure.4. According to traditional design method and energy analysis method, initially proposed destruction criterion based on energy distortion theory and design approach of energy design method for MRCWS. |
