Study Of Infilled Walls And Dark Columns On The Seismic Performance Of Special-shaped Column

Reinforced concrete (RC) frame structure with specially shaped columns (SSC) has received quite extensive application due to its good function of structural engineering in the construction, especially residential project has been widely used. It has done some research at home and abroad, and mainly focus in shaped column structural members, the research and numerical analysis of beam-column joints experimental, static non-linear and pseudo-dynamic experimental study on seismic behavior of special-shaped column frame structure, shaped columns with infill walls Structure and components with a dark shaped column column experimental study on seismic behavior, and we also get lots of research achievements, but the research of the structure with specially shaped columns with infilled wall or embedded column is in preliminary exploration stage, In order to use the structure better in the future, the paper study the seismic performance that filled with dark walls and columns on the Columns of and explore its mechanism of seismic performanceThe L-sahped and T-sahped columns with the embedded columns has been analyzed by nonline analysis. And the analysis results have been compared with the experimental ones,which shows that the embedded columns can not only improve the bearing capacity of the components, but also improve component of elastic-plastic energy-dissipating capacity.On the basis of components, this paper build and set different column filled with the dark walls of the structure analysis model, respectively, a nonlinear dynamic time history analysis to study the dark columns and walls filled with a whole set of special-shaped column dynamic performance. The results show that:when we set the filled walls, the dark columns of the structure have no obvious effect on the overall dynamic performance; when we set the filled wall,the overall dynamic response of structural will change and improve the overall stiffness of the structure; when we set the filled wall to different positions, the dynamic response of the whole structure also will be different, when the wall be set to the bottom of the structure, the response will be most obvious; the same cross-sectional area of the shaped column frame structure is superior to that of ordinary rectangular column frame.Added the Static push-over analysis as the analysis of nonlinear dynamic about the reinforced specially shaped columns with concealed column frame structure,to compare their failure modes, the skeleton curve, fiber strain and so on. The results show that the existence of embedded columns can significantly delay the appearance of plastic hinges. For the beam, the maximum compressive strain of the concrete and steel occurre on the second floor, and for the column, the compressive strain of concrete of middle column is the largest. The largest tensile strain of the steel is on the corner columns.