Torsional Response Of Irregular Tall Building In Plan

In design of tall building,the regular structure in plan is must careful consideration, because of the irregular structure in plan arrange the structure to make its flat qua ntity center and just center is not heavy to match,cause a same direction of the layer pr oduce the different dis -placement.The serious hour cause whole breakage of structure. In struc -ture design,must consideration torsion al response of irregular tall build ing in plan.Our country current seismic design to put forward the torsional disp lacment ratio and period,because of the structure form,the structure resist the ability for torsion to also have the dissimilarity.The standard with the same"move ratio not proper big in 1.2,shouldn't be big in 1.5" can't reflect the structure to resist the ability of torsion.The paper tries the problem to studies the irregular tall building.Our country current seismic design provision to carry on analysis,detection the control the torsional displacement ratio and period exist some problem.Try to create the certain quantity structure models of the PKPM softwa -re,the models have the certain likeness,compute the each structure of displacement ratio and torsional just,and biggest moves the basic data of ere,to the income move to compare the data result, pass the mathematics covariance method,get a dissimilarity divide a model structure moves to compare the variety trend,make in certainly flat arrange the structure of the form.It become our country current seismic move to compare the parameter to defini -tion the irregular characteristic of structure of a kind of necessity complement,and hope to gain the conclusion and with method can to actual the engineering rises to arrive the certain reference function.