Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems
Joint Authors
Reyes-Salazar, Alfredo
Ruiz, Sonia E.
Rivera, J. Luz
López-Barraza, Arturo
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-02
Country of Publication
Egypt
No. of Pages
10
Abstract EN
The hysteretic energy ( E H ) dissipated in posttensioned steel frames (PTSF) with hysteretic dampers is calculated by using equivalent single-degree-of-freedom systems (ESDOFS), where the nonlinearity of both the steel bars (beam and columns) and the connections of the structural frame is separately considered.
Five multi-degree-of-freedom (MDOFS) PTSF and their corresponding ESDOFS are studied under the action of 30 seismic motions recorded in soft ground, scaled in terms of the spectral pseudoacceleration evaluated at the fundamental period of the structures.
Several simple mathematical expressions are proposed.
The first expression is useful to calculate modifying factors ( FM EH ) to relate E H of the ESDOFS with that of the MDOFS; the second is to determine the interstory drift (γ) as a function of the seismic intensity.
The third equation is to calculate the factor of the relative participation of the energy that the connections dissipate with respect to the total energy E H and the fourth equation, which is function of the γ, is to obtain the distribution factors of E H through the height of the structure.
The methodology proposed can be used for the design or the structural revision of PTSF with dampers.
American Psychological Association (APA)
Rivera, J. Luz& López-Barraza, Arturo& Ruiz, Sonia E.& Reyes-Salazar, Alfredo. 2014. Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1015843
Modern Language Association (MLA)
Rivera, J. Luz…[et al.]. Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1015843
American Medical Association (AMA)
Rivera, J. Luz& López-Barraza, Arturo& Ruiz, Sonia E.& Reyes-Salazar, Alfredo. Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1015843
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015843