EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER

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Mortazavi Mahmoud Reza; LAVASANI H.H.

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL CONFERENCE ON MODERN RESEARCH IN CIVIL ENGINEERING, ARCHITECTURAL, AND URBAN DEVELOPMENT
Year:2016 | Issue:3

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Title

EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER

Author(s)

Mortazavi Mahmoud Reza | LAVASANI H.H.

Keywords

SEISMIC FUNCTION

SIMPLE STEEL FRAMES

EXTERNAL BRACES AXIS

VISCOUS DAMPER

Abstract

THE PRESENT STUDY WAS PERFORMED WITH THE AIM OF EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER. VISCOUS DAMPERS HAVE THE ABILITY TO ABSORB THE EARTHQUAKE'S ENERGY AND SUPPLY THE ENERGY FOR RESISTING THE MOVEMENT OF THE STRUCTURE. IN THE CURRENT STUDY, WE EVALUATE THE SEISMIC PERFORMANCE OF FRAMES WITH EXTERNAL BRACES AXIS UNDER DYNAMIC LOAD IN TWO STATES. IN THE EARLY STATE A TWO-FLOOR FRAME WITH THE EXTERNAL BRACES AXIS (LACK OF VISCOUS DAMPER) IN ABAQUS SOFTWARE WAS ANALYZED. THE RESULTS WERE CONSIDERED AND COMPARED TO THE OUTCOMES OF MODELING IN ANOTHER FRAME WITH THE SAME DIMENSION AND WITH THE PRESENCE OF VISCOUS DAMPER. THE RESULTS INDICATE THAT BY ADDING OF THE VISCOUS DAMPER TO THE STRUCTURE THE CHANGE OF TRANSFERRING RATE DURING THE TIME HAS REDUCED IN THE ALIGNMENT OF THE FIRST FLOOR. IN THE HYSTERESIS DIAGRAM OF THE STRUCTURE, THE FUNCTION OF THE DAMPER HAS BEEN VERY EFFECTIVE IN WASTING OF ENERGY IN SEISMIC ANALYZING, SO THAT IF THE INTERNAL AREA OF THE DIAGRAM INCREASED THEN IT ABSORBS MORE ENERGY FROM THE EARTHQUAKE FORCE. THE RATE OF ENERGY ABSORPTION CAUSES 70% DECREASED IN TRANSFERRING OF THE STRUCTURE IN THE DIRECTION OF EARTHQUAKE LATERAL FORCE. THE ENERGY ABSORPTION RATE BY THE DAMPER IS 70%.

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APA: Copy

Mortazavi, Mahmoud Reza, & LAVASANI, H.H.. (2016). EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER. INTERNATIONAL CONFERENCE ON MODERN RESEARCH IN CIVIL ENGINEERING, ARCHITECTURAL, AND URBAN DEVELOPME. SID. https://sid.ir/paper/926704/en

Vancouver: Copy

Mortazavi Mahmoud Reza, LAVASANI H.H.. EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER. 2016. Available from: https://sid.ir/paper/926704/en

IEEE: Copy

Mahmoud Reza Mortazavi, and H.H. LAVASANI, “EVALUATION OF SEISMIC PERFORMANCE OF SIMPLE STEEL FRAMES WITH EXTERNAL BRACES AXIS WITH VISCOUS DAMPER,” presented at the INTERNATIONAL CONFERENCE ON MODERN RESEARCH IN CIVIL ENGINEERING, ARCHITECTURAL, AND URBAN DEVELOPME. 2016, [Online]. Available: https://sid.ir/paper/926704/en

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