The Elastic-plastic Simplified Calculation Model of Eco-composite Wall Structure

摘要

The eco-composite wall structure consists of concrete blocks, concrete frame grids, concealed frame and so on. When entering elastic-plastic stage, the obvious damage phenomena appears on the eco-composite wall, the deformation coordination between the block and the frame grid, compound wall and the outer framework is broken, which brings relatively large-difficulty to establish the elasto-plastic model of structure. According to different analysis aims, the rigid frame-equivalent diagonal strut model and the rigid frame-whole bracing model of the eco-composite wall structure in elastic-plastic stage are presented based on previous study. The correctness of two models is verified by experiments. Theoretical analysis and experimental results show that the rigid frame-equivalent diagonal strut model characterized by calculation accuracy and practicability is suitable for nonlinear caculation analysis of eco-composite wall. The rigid frame-whole bracing mode giving consideration to accuracy and efficiency is applicable to structural elastic-plastic time-history analysis under strong seismic action.