The Application Of The Damper In The Research Of Reducing Twist In The High-rise Building With Hole In The Floor

As the world’s population to rapid growth and human’s request enhanced for living space and beautiful and practical,forced building to be higher and more complex.The increasd height of the building have a huge impact to the safety of the structure,plane asymmetry and complicated structure will continue to enlarge safety factor. Our country building.the seismic code required a building in the earthquake when load to do " strong earthquakes,not the shock of small earthquakes can fix,not bad ".In order to ensure that the above requirements, we must understand in seismic response of the whole structure.This paper based on the above purpose by using nonlinear time history analysis on the frame structure of the torsion effect.Time history analysis is refers to the use of numerical integral means to solve in every time△t,the solution of the movement differential equation in mathematics is also called gradually integral method.This method can from initial state gradually integral until shaking terminated.Solving under seismic action from the static structure vibration to stop the whole process of the earthquake response.So time history analysis is an effective and practical method in the research in earthquake under the action of structure.Since2008years the WenChuan earthquake,back at home and abroad to shock the professionals become one of the main topics of the researth..Beacause of its clear mechanism and simple structure,damper is become the researth scholar’s favor.At present has studied and developed a variety of types of building damper[1]. This paper will use metal consumption (damper) suspension structure in frame structure on time history analysis. Comparative analysis of structure after the application of confirmed damper in structure under the influence of the earthquake has a practical and effective away can shock absorption effect.This paper fist plans to build a simple four frame structure,opening a hole in the structure’s floor,and in the open hole processing application after metal consumption(damper)suspension structure on the framework for strengthening.A comparative analysis of the structure of the angular point X displacement effect of structure to reverse analysisi.Analysis results prove the open mouth of the cave has the adverse factor to the structure.,but energy consumption to reduce the shock add between layers structure torsional produced the positive effect. Secondly,referenced to a already built high-level framework structure for calculation,proof the damper add to the structure in the earthquake loads between layers structure of the torsion of reduced role.This paper analysis model adopted rod layer model,the application of domestic calculation software (PKPM and ANSYS) to structure analysis.