Seismic Behavior And Analysis Of Oblique Support Of High - Rise Building Structures

As the economy and the progress of science and technology, obtained the rapid development of high-rise buildings and the current frame structure, frame shear wall structure, shear wall structure and a series of structural system is widely used in high-rise buildings.Within the scope of a certain height, due to the frame structure of the economy, the flexibility of space layout is relatively than with other forms of structure has obvious advantages.But only a frame structure seismic line, does not conform to the code for seismic design of buildings GB50011-2010 multichannel seismic defense concept design requirements.Increase the shear wall in the concrete frame structure, constitute a concrete frame shear wall structure, already widely used in practical engineering.This structure is more better than concrete frame structure seismic performance, housing for maximum height more than doubled(seismic code table 6.1.1).But its cost is much higher than the frame structure, construction is more complex, also has certain influence for construction use. Outside the building structure in addition to the seismic performance is strong, safe and reliable,affordable.Increasing concrete inclined support in frame structure, equivalent to increase the seismic line, the structure of the seismic performance improved a lot, the structure of the seismic performance improved a lot, has been widely used in high-rise buildings.Only to the current seismic code in China appendix G steel support-concrete frame aseismic design puts forward the design requirements, but for reinforced concrete inclined support structure hasn’t made the rules.And at present,the structure of this research is insufficient.This paper through the establishment of comparison model, using the surplus jianke, Midas, ETABS program, such as the finite element software to calculate,Then by comparing the cycle, earthquake shear force and displacement, and the interlayer displacement Angle seismic performance parameters, such as, found that the reinforced concrete inclined support as well as shear wall can obviously increase the integral stiffness to resist lateral force of building structure.The increase in consumption of the same materials, increase the number of inclined support more than increase the cross section of inclined support can effectively increase the integral stiffness of the structure.Finally using MIDAS inclined support structure elastoplastic analysis framework, proves that under the seismic action, inclined support ahead of frame column failure, oblique support can serve as structures to be the first line of the seismic line.