| In this paper, reinforced concrete frame-shear wall structures based on the theoryof existing research on the role of such structures in the collapse of mega earthquakesmethod of determining a preliminary study, the realization process of collapse of thecollapse simulation and Cause Analysis. The main work and results are as follows:(1) reinforced concrete frame shear wall structure collapsed determination index: Acomparative analysis of current research on the structural components in a variety ofcollapse failure criteria, including taking into account the seismic input intensity andheld, the member of the first ultra-damage and plastic deformation energy cumulativedamage caused by the deformation and failure criteria for dual energy frame shear wallthat contains a multi-class component structure is more applicable, the final framestructure for considering key components of the overall destruction of the weak layerframe structure as assessed by indicators of the collapse of the methods for discussed.(2)the collapse of analog and frame structure collapsed damage index contrast: theuse of explicit dynamic finite element analysis program LS-DYNA initially realizedframe structure collapsed simulation and analysis by simplifying the plane model, basedon deformation and dual energy failure criterion overall damage indicators and weakstory frame shear wall structure specification limit drift angle indicators were compared,the results are quite different, this article discusses the overall destruction of the weaklayer frame structure indicators in different components extent of the damage wereconsidered, refined frame structure collapsed on the determination method, but furtherresearch is needed applicability and validation.(3) Different design parameters of collapse of the wall structure comparison: the useof separate modeling method to establish seven three-dimensional finite element modelof numerical examples, from the macro comparative analysis of the underlying wallstuds axial compression ratio, different frame shear stiffness ratio eigenvalues and thestrength of coupling beam frame shear wall structure collapsed on impact and results ofthe analysis on the frame shear wall structure parameters for the above anti-collapsedesign and make appropriate recommendations. |
