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Medientyp: E-Artikel Titel: Generalized‐α methods for seismic structural testing Beteiligte: Bonelli, A.; Bursi, O. S. Erschienen: Wiley, 2004 Erschienen in: Earthquake Engineering & Structural Dynamics, 33 (2004) 10, Seite 1067-1102 Sprache: Englisch DOI: 10.1002/eqe.390 ISSN: 0098-8847; 1096-9845 Schlagwörter: Earth and Planetary Sciences (miscellaneous) ; Geotechnical Engineering and Engineering Geology ; Civil and Structural Engineering Entstehung: Anmerkungen: Beschreibung: <jats:title>Abstract</jats:title><jats:p>This paper presents novel predictor–corrector time‐integration algorithms based on the Generalized‐α method to perform pseudo‐dynamic tests with substructuring. The implicit Generalized‐α algorithm was implemented in a predictor–one corrector form giving rise to the implicit <jats:italic>IPC–ρ</jats:italic>∞ method, able to avoid expensive iterative corrections in view of high‐speed applications. Moreover, the scheme embodies a secant stiffness formula that can closely approximate the actual stiffness of a structure. Also an explicit algorithm endowed with user‐controlled dissipation properties, the <jats:italic>EPC–ρ</jats:italic>b method, was implemented. The resulting schemes were tested experimentally both on a two‐ and on a six‐degrees‐of‐freedom system, using substructuring. The tests indicated that the numerical strategies enhance the fidelity of the pseudo‐dynamic test results even in an environment characterized by considerable experimental errors. Moreover, the schemes were tested numerically on severe non‐linear substructured multiple‐degrees‐of‐freedom systems reproduced with the Bouc–Wen model, showing the reliability of the seismic tests under these conditions. Copyright © 2004 John Wiley & Sons, Ltd.</jats:p>