基于目标反应谱与包线的地震动合成.pdf

30 1 V o.l 30 N o. 1 2010 2 JOURNAL OF EARTH QUAK E ENG IN EER ING AND ENG INEER ING V IBRAT ION Feb. 2010 : 1000 - 1301( 20 10) 01- 0001- 07 1 2 3 徐国栋, 史培军 , 周锡元 ( 1. , 10160 1 2. , 100875 3. , , 100022) : , , , , , , , : : P315. 9 : A A rtificia l ground m otion based on target response spectra and envelope 1 2 3 XU Guodong , SH I Pe ijun , ZHOU X iyuan ( 1. Inst itu te of D isaster P rev en tion S cience and T echno logy, Sanh e 10 160 1, Ch in a 2. A cad emy of D isaster R edu ct ion and Em ergency M anagem en t, M in istry of C iv il A ffa irs M in istry of Edu cation, Beijing N orm al U n iv ersity, Beij ing 100875, C h ina 3. K ey L aboratory of Earthquake Engineering and S tructural R et rofit, Beij ing U n iv ersity of T echnology, Beijing 100022, Ch ina) Abs tract: The authors put fo rw ard a m ethod th at takes the respon se spectrum and the enve lop ing curve as the doub le target funct ion s to synthesize the artificia l ground mo tion. The m ethod not only m akes the respon se sp ectrum of the artificia l ground m ot ion com p ly w ith the target spectrum, but a lso in the itera tive process adju sts the g round m ot ion w avesh ap e to conform to the goal envelop ing curve funct ion approx mi ately, and e lmi inates the baseline sh ift in the acceleration t mi e h istory, then m akes the ve loc ity and displacem ent tmi e h istories o f groundm o tion m ore reasonab le. The authors argue tha t it m ay b