The accuracy of CQC and response spectrum analysis in the case of impulsive earthquakes

F. De Luca; G. M. Verderame

The accuracy of CQC and response spectrum analysis in the case of impulsive earthquakes

F. De Luca, G. M. Verderame

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

Comparison of structural outputs of Response Spectrum Analyses (RSA) and linearTime History (TH) analyses are carried out for two existing RC frames. Four set of records, in which two of them were made of pulse-like records, were considered; aimed at checking the accuracy of CQC in response spectrum analyses. Results showed a statistically significant underestimation of RSA with respect to TH for maximum interstorey drift and drifts at upper storeys and for all record sets (up to -20%). Pulse-like records with pulse periods (T_P) lower than the fundamental period (T₁) of the structures showed an increase of underestimation (up to -40%). RSA should be carefully employed for both design and assessment when displacement or drifts have to be controlled. These trends are not only an issue in the case of pulse-like records with but in general.

Original language	English
Title of host publication	Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages	741-748
Number of pages	8
Publication status	Published - 1 Dec 2013
Event	11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States Duration: 16 Jun 2013 → 20 Jun 2013

Conference

Conference	11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Country	United States
City	New York, NY
Period	16/06/13 → 20/06/13

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title = "The accuracy of CQC and response spectrum analysis in the case of impulsive earthquakes",

abstract = "Comparison of structural outputs of Response Spectrum Analyses (RSA) and linearTime History (TH) analyses are carried out for two existing RC frames. Four set of records, in which two of them were made of pulse-like records, were considered; aimed at checking the accuracy of CQC in response spectrum analyses. Results showed a statistically significant underestimation of RSA with respect to TH for maximum interstorey drift and drifts at upper storeys and for all record sets (up to -20%). Pulse-like records with pulse periods (TP) lower than the fundamental period (T1) of the structures showed an increase of underestimation (up to -40%). RSA should be carefully employed for both design and assessment when displacement or drifts have to be controlled. These trends are not only an issue in the case of pulse-like records with but in general.",

author = "{De Luca}, F. and Verderame, {G. M.}",

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De Luca, F & Verderame, GM 2013, The accuracy of CQC and response spectrum analysis in the case of impulsive earthquakes. in Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013. pp. 741-748, 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013, New York, NY, United States, 16/06/13.

The accuracy of CQC and response spectrum analysis in the case of impulsive earthquakes. / De Luca, F.; Verderame, G. M.

Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013. 2013. p. 741-748.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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