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Structural Engineering and Mechanics Volume 3, Number 3, May 1995 , pages 215-228 DOI: https://doi.org/10.12989/sem.1995.3.3.215 |
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A HIGH-PRECISION DIRECT INTEGRATION SCHEME FOR NONSTATIONARY RANDOM SEISMIC RESPONSES OF NONCLASSICALLY DAMPED STRUCTURES |
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LIN JH, SHEN WP, WILLIAMS FW
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| Abstract | ||
| For non-classically damped structures subjected to evolutionary random seismic excitations, the non-stationary random responses are computed by means of a high precision direct (HPD) integration scheme combined with the pseudo excitation method. Only real modes are used, so that the reduced equations of motion remain coupled for such non-classically damped structures, In the given examples, the efficiency of this method is compared with that of the Newmark method. | ||
| Key Words | ||
| NONSTATIONARY RANDOM DIRECT INTEGRATION DAMPING | ||
| Address | ||
| LIN JH, DALIAN UNIV TECHNOL,ENGN MECH RES INST,DALIAN 116023,PEOPLES R CHINA SHANGHAI JIAO TONG UNIV,DEPT ENGN MECH,SHANGHAI 200030,PEOPLES R CHINA UNIV WALES COLL CARDIFF,CARDIFF SCH ENGN,DIV STRUCT ENGN,CARDIFF CF2 1XH,S GLAM,WALES | ||