Study On Seismic Force Performance Of Mega Frame Structures Of Reinforced Concrete

With the rapid development of modern cities, urban land increasingly tight,high-rise, high-rise gradually become the object of future urban development. RC mega-frame structures have emerged, mega-frame structure, rapid construction, force clear, saving land resources, so it became the focus of future development of urban construction objects. It is necessary to carry out the seismic performance analysis.High-rise, high-rise structures in the city now, more common, mega-frame structure as one of its typical structure, has also been a rapid development, fasting style mega-frame structure with respect to the solid abdominal mega frame structure It has better seismic performance, but also have to achieve savings in building materials,saving costs. So having a long-term significance for the study of solid abdominal giant mega-frame and lattice type frame seismic performance.This paper introduces the development and the concept of mega-frame structure,category, and the development of high-rise buildings, followed by introduction of the theoretical study on seismic behavior of seismic analysis are often used, and describes its concepts and theories of origin. By modal analysis of mega frame to give the mega frame modal information by the response spectrum analysis, the mechanical properties under biaxial seismic action, by his knowledge in the case of multi-elastic seismic process under analysis, study between Elcentro wave, Lanzhou wave, Taft wave layer under the three kinds of seismic waves of displacement, story drift angle, and vertex-term displacement. By comparing fasting style mega-frame and solid abdominal giant frame seismic performance, when the earthquake acceleration is small, the formula obtained fasting giant frame than the real abdominal giant frame, good seismic performance, seismic acceleration is large when fasting seismic performance formula MEGAFRAME not truthfully abdominal giant frame. Rarely met earthquake seismic performance under fasting formula and solid web structure analysis, the two structures meet the requirements for seismic resistance.