Seismic Behavior Analysis Of Shear Wall Of A Small High-rise Structure Based On Midas/Building

With the development of our national economy, high-rise buildings come to the fore, they can save a vast emerging urban land, shorten the public facilities and municipal pipeline network, thus reduce the development cycle, speed up the construction of municipal investment city, and small high-rise building structure in the residential building is widely applied. Reinforced concrete short shear wall structure as a structure with resisting lateral force has been widely used in high-rise residential building. How to evaluate and ensure high-rise residential structure in the reliability and security of seismic action based aseismic design, is the important issue. In this paper, the Guangzhou Military Region, Television Centre, an instance of an apartment building this project, using Midas/Building software for small high-rise residential short shear wall structure of the Pushover analysis and dynamic analysis, the results for small high-rise short Shear wall structural system to provide a theoretical basis for seismic design. This paper mainly studies the problems and the obtained results are as follows:Description of small high-rise residential buildings and concrete shear wall structure of the concepts and forms. Details Midas/Building software applications in structural analysis and the pushover that used Pushover analysis and dynamic analysis method.With an engineering example, a finite element model of high-rise shear wall structure and the earthquake in many under severe earthquake Pushover analysis, the structure of the performance point, failure mechanism, the order of the appearance of plastic hinges, Pushover Correlation curve, revealed in the case of rare earthquake more than a small rise shear walls under the structure of the actual yield, to find the structural system under earthquake and the weak position. The results showed that: high-rise shear wall structure under horizontal load in the failure mode is flexure shear. Earthquake in a multi-level under the small deformation of shear wall structure is basically in the elastic range, in the rare earthquake into the plastic stage, but in the "Seismic Design of Buildings"GB50011 a 2010 within the prescribed limits.朗读For small high-rise shear wall structure modal analysis to obtain the vibration characteristics of structures, including the natural periods and mode shapes of curves, and in-depth analysis of the displacement of the spindle modes. The results showed that:the first mode of the structure to lateral translational-based, and the second longitudinal vibration mode in order to move the main square, the third main modes to torsional vibration. Reverse the effect of structure is small, the reason is because the structure of the layout to provide better torsional rigidity.On a small rise shear wall structure for dynamic time-history analysis, the level of the structure in the whole structure under earthquake lateral displacement, story drift, story drift, the top displacement curves, the floor shear curve Overturning moment curve and the floor. The results show that the structure of the maximum story drift does not exceed the "Seismic Design of Buildings" provides flexibility in extreme drift angle.