Based On Energy Method To Analyze And Research Architectutal Structure's Seismic-resistance Performance

Seismic analysis base on energy can better reply structural elastic property in strong earthquake.And energy analysis has many merit such as clear idear easy terms and so on.And mant reseather more and more pay attention to the seismic energy analysis.The total input energy of structure is made up by four componets such as the hysteretic dissipated energy,the damping energy,kenetic energy,elastic energy. The damping energy is consumed by the damping force in inner part of structure. the hysteretic dissipated energy is the unelasticity energy.And the hysteretic dissipated energy is the major index to measure the plasiticity cumulature injure,and it can reply danamic response of structure by the earthquake duration.These curves can procide basis for structural seismic analysis.Calculation procedure of elastic-plastic structural seismic energy is introduced briefy,and there are two examples to show the procedure.This articl from energy viewpoint,exploiting Matlab calucate the energy history time curve with EL-CENTRO wave.And,this articl relative analysis the allocation pattern of the hysteretic dissipated energy and damping energy in total input seismic energy in different damping ratio,earthquak wave elements(peak,spectrum and duration).Reasearch discover the distribution of hysteretic dissipted energy renforced concrete structure in inner part has close connection with earthquake wave and hysteretic of the structure. (1)The result indicate with the earthquake wave peak accretion,the total input seismic energy,the hysteretic dissipated energy and the damping energy also have an accretion.(2)And if the damping ratio grow, the proportion of the hysteretic dissipated energy in the otal input seismic energy will reduce.But the damping energy rate will grow in this situation.(3)When we input the different earthquake wave,the predominant period of the wave will influence the hysteretic dissipated energy. If the predominant period close the natural vibration period,the energy will have a big response.This articl based on the total input seismic energy's allocation pattern and hyster-tic dissipated energy's allocation pattern in layer-to-layer.And base on energy and deformation double failure criterion,create the reinforced concrete's anti-seismic perdormance's appraisal procedure.These result will provide the technical support and foundation for architectutal structure's seismic-resistance perfprmance base on energy viewpoint.