Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures

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Rezayibana Bahram; Norozi kalehsar Saeed; Nourollahi Babak

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Journal Paper

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Journal: JOURNAL OF NUMERICAL METHODS IN CIVIL ENGINEERING Year:2018 | Volume:2 | Issue:3 Page(s): 1-13

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Information Journal Paper

Title

Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures

Author(s)

Rezayibana Bahram | Norozi kalehsar Saeed | Nourollahi Babak | Issue Writer Certificate

Keywords

Fling-Step

Near-Fault Earthquake

Eccentrically Braced Frame

Story Drift-Ratio

Displacement

Abstract

Fling-Step and forward directivity are two important characteristics of near-field earthquakes. Forward directivity occurs when the rupture propagates toward the site and arises in fault‐ normal direction for strike‐ slip faults. Fling-Step is the consequence of permanent ground Displacement imposed by near-field earthquakes and arises in strikeslip faults in the strike parallel direction. Fling-Step effect produces permanent Displacement at the end the culmination of Displacement time history. This effect is usually omitted from the main record using the standard processing methods and therefore, cannot be determined for different structures. Many studies were performed to obtain seismic response of different structures subjected to near-field earthquake having forward directivity. On the other hand, there are few references to investigate the effect of flingstep on seismic behavior of structures. For this purpose, 14 earthquake records with flingstep are selected in a way that important factors including Fling-Step, PGV, PGA and the energy application type are different. The selected records are applied to Eccentrically Braced Frame structures with 3, 6, 9 and 12 stories. A nonlinear time history analysis is used to capture Displacement and story-drift ratio responses. The results show that the Fling-Step effect has no significant impact on any of the considered structures and its effect can be neglected in the case of Eccentrically Braced Frame structures.

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APA: Copy

Rezayibana, Bahram, Norozi kalehsar, Saeed, & Nourollahi, Babak. (2018). Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures. JOURNAL OF NUMERICAL METHODS IN CIVIL ENGINEERING, 2(3), 1-13. SID. https://sid.ir/paper/354638/en

Vancouver: Copy

Rezayibana Bahram, Norozi kalehsar Saeed, Nourollahi Babak. Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures. JOURNAL OF NUMERICAL METHODS IN CIVIL ENGINEERING[Internet]. 2018;2(3):1-13. Available from: https://sid.ir/paper/354638/en

IEEE: Copy

Bahram Rezayibana, Saeed Norozi kalehsar, and Babak Nourollahi, “Effect of Fling-Step on Seismic Response of Steel Eccentrically Braced Frame Structures,” JOURNAL OF NUMERICAL METHODS IN CIVIL ENGINEERING, vol. 2, no. 3, pp. 1–13, 2018, [Online]. Available: https://sid.ir/paper/354638/en

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