Evaluation of the Seismic Performance of Rocking Motions and its Effects on the Controlling Provisions of Special Steel Moment-resisting Systems Dual with CBF Bracing

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Parvari Ali; Azizi Ehsan

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Journal: JOURNAL OF STRUCTURAL ENGINEERING Year:2018 | Volume:15 | Issue:3 Page(s): 21-29

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Title

Evaluation of the Seismic Performance of Rocking Motions and its Effects on the Controlling Provisions of Special Steel Moment-resisting Systems Dual with CBF Bracing

Author(s)

Parvari Ali | Azizi Ehsan | Issue Writer Certificate

Keywords

Self-centering motion

special concentrically braced frame

seismic performance

near-field earthquake

Abstract

In this study, 4-, 8-, and 12-Story steel special concentrically braced frame (SCBFs) structures were considered in area with high seismically hazard and soil type II according to Iranian's 2800 code provision. Structures are residential use and have regularity in plane and vertical distribution. Structures were modeled using Sap 2000 software to investigate the effect of Self-centering motion under seven near-field earthquakes. All models assumed with and without dual system controlling provisions. The results of this research indicate that without dual system provisions, considering the Self-centering motion in 4-, 8-, and 12-Story SCBFs reduces base shear of structures in contrast with increasing deformation of top floor and column axial force. In average, the Self-centering motion dissipate energy more than fixed base one. With controlling dual system provisions, considering the Self-centering motion in 4-, 8-, and 12-Story SCBFs reduces base shear of structures, whereas increases deformation of top floor and column axial force. Moreover, in this case of study, energy dissipation are more than with controlling one. Considering the Self-centering motion in 8-, and 12-Story SCBFs reduces base shear of structures and top floor deformations, meanwhile column axial force was increased. It can be seen that in 4-, and 12-Story SCBFs considering code provisions had a better results, whereas in 8-Story SCBFs neglecting code provisions was accepted.

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APA: Copy

Parvari, Ali, & Azizi, Ehsan. (2018). Evaluation of the Seismic Performance of Rocking Motions and its Effects on the Controlling Provisions of Special Steel Moment-resisting Systems Dual with CBF Bracing. JOURNAL OF STRUCTURAL ENGINEERING, 15(3 ), 21-29. SID. https://sid.ir/paper/378975/en

Vancouver: Copy

Parvari Ali, Azizi Ehsan. Evaluation of the Seismic Performance of Rocking Motions and its Effects on the Controlling Provisions of Special Steel Moment-resisting Systems Dual with CBF Bracing. JOURNAL OF STRUCTURAL ENGINEERING[Internet]. 2018;15(3 ):21-29. Available from: https://sid.ir/paper/378975/en

IEEE: Copy

Ali Parvari, and Ehsan Azizi, “Evaluation of the Seismic Performance of Rocking Motions and its Effects on the Controlling Provisions of Special Steel Moment-resisting Systems Dual with CBF Bracing,” JOURNAL OF STRUCTURAL ENGINEERING, vol. 15, no. 3 , pp. 21–29, 2018, [Online]. Available: https://sid.ir/paper/378975/en

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