Effect of modal truncation in multiple support response spectrum analysis of bridges

Katerina Konakli; A. Der Kiureghian

Effect of modal truncation in multiple support response spectrum analysis of bridges

Katerina Konakli
, A. Der Kiureghian

University of California at Berkeley

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The question of how many modes to include in the dynamic analyses of multiply-supported structures subjected to spatially varying ground motions is considered in this paper. The issue is investigated within the framework of the Multiple Support Response Spectrum (MSRS) method developed by Der Kiureghian and Neuenhofer (1992). The original MSRS rule is extended to approximately account for the contribution of the truncated highfrequency modes. A bridge structure designed by the California Department of Transportation (Caltrans) is used as an example application. The modal contributions to various response quantities are examined in conjunction with measures of the participating modal mass and the improvement achieved with the extended MSRS rule.

Original language	English
Title of host publication	Proceedings of 14th World Conference on Earthquake Engineering
Publication date	2008
Publication status	Published - 2008
Externally published	Yes
Event	14th World Conference on Earthquake Engineering - Beijing, China Duration: 12 Oct 2008 → 17 Oct 2008 Conference number: 14

Conference

Conference	14th World Conference on Earthquake Engineering
Number	14
Country/Territory	China
City	Beijing
Period	12/10/2008 → 17/10/2008

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@inproceedings{453b7c65326540d79a9ffdbecebb055e,

title = "Effect of modal truncation in multiple support response spectrum analysis of bridges",

abstract = "The question of how many modes to include in the dynamic analyses of multiply-supported structures subjected to spatially varying ground motions is considered in this paper. The issue is investigated within the framework of the Multiple Support Response Spectrum (MSRS) method developed by Der Kiureghian and Neuenhofer (1992). The original MSRS rule is extended to approximately account for the contribution of the truncated highfrequency modes. A bridge structure designed by the California Department of Transportation (Caltrans) is used as an example application. The modal contributions to various response quantities are examined in conjunction with measures of the participating modal mass and the improvement achieved with the extended MSRS rule.",

author = "Katerina Konakli and \{Der Kiureghian\}, A.",

year = "2008",

language = "English",

booktitle = "Proceedings of 14th World Conference on Earthquake Engineering",

note = "14th World Conference on Earthquake Engineering ; Conference date: 12-10-2008 Through 17-10-2008",

}

TY - GEN

T1 - Effect of modal truncation in multiple support response spectrum analysis of bridges

AU - Konakli, Katerina

AU - Der Kiureghian, A.

N1 - Conference code: 14

PY - 2008

Y1 - 2008

N2 - The question of how many modes to include in the dynamic analyses of multiply-supported structures subjected to spatially varying ground motions is considered in this paper. The issue is investigated within the framework of the Multiple Support Response Spectrum (MSRS) method developed by Der Kiureghian and Neuenhofer (1992). The original MSRS rule is extended to approximately account for the contribution of the truncated highfrequency modes. A bridge structure designed by the California Department of Transportation (Caltrans) is used as an example application. The modal contributions to various response quantities are examined in conjunction with measures of the participating modal mass and the improvement achieved with the extended MSRS rule.

AB - The question of how many modes to include in the dynamic analyses of multiply-supported structures subjected to spatially varying ground motions is considered in this paper. The issue is investigated within the framework of the Multiple Support Response Spectrum (MSRS) method developed by Der Kiureghian and Neuenhofer (1992). The original MSRS rule is extended to approximately account for the contribution of the truncated highfrequency modes. A bridge structure designed by the California Department of Transportation (Caltrans) is used as an example application. The modal contributions to various response quantities are examined in conjunction with measures of the participating modal mass and the improvement achieved with the extended MSRS rule.

M3 - Article in proceedings

BT - Proceedings of 14th World Conference on Earthquake Engineering

T2 - 14th World Conference on Earthquake Engineering

Y2 - 12 October 2008 through 17 October 2008

ER -

Effect of modal truncation in multiple support response spectrum analysis of bridges

Abstract

Conference

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