CONTROL OF BASE ISOLATED BENCHMARK USING COMBINED CONTROL STRATEGY WITH FUZZY ALGORITHM SUBJECTED TO NEAR-FIELD EARTHQUAKES

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SHARIATMADAR H.; Momtazdargahi Mozhgan sadat

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Seminar Paper

Paper Information

Seminar: NATIONAL CONGRESS ON CIVIL ENGINEERING
Year:2016 | Issue:9

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Title

CONTROL OF BASE ISOLATED BENCHMARK USING COMBINED CONTROL STRATEGY WITH FUZZY ALGORITHM SUBJECTED TO NEAR-FIELD EARTHQUAKES

Author(s)

SHARIATMADAR H. | Momtazdargahi Mozhgan sadat

Keywords

BASE ISOLATED BENCHMARK STRUCTURE

MULTI TUNED MASS DAMPERS

HYBRID ISOLATORS

NEARFIELD EARTHQUAKE

FUZZY ALGORITHM

Abstract

THE PURPOSE OF CONTROL STRUCTURE AGAINST EARTHQUAKE IS TO DISSIPATE EARTHQUAKE INPUT ENERGY TO THE STRUCTURE AND REDUCE THE PLASTIC DEFORMATION OF STRUCTURAL MEMBERS. THERE ARE DIFFERENT METHODS FOR CONTROL STRUCTURE AGAINST EARTHQUAKE TO REDUCE THE STRUCTURE RESPONSE THAT THEY ARE ACTIVE, SEMI-ACTIVE, INACTIVE AND HYBRID.IN THIS PAPER TWO DIFFERENT COMBINED CONTROL SYSTEMS ARE USED FIRST SYSTEM COMPRISES BASE ISOLATOR AND MULTI TUNED MASS DAMPERS (BI & MTMD) AND ANOTHER COMBINATION IS HYBRID BASE ISOLATOR AND MULTI TUNED MASS DAMPERS (HBI & MTMD) FOR CONTROLLING AN EIGHT STORY ISOLATED BENCHMARK STEEL STRUCTURE. ACTIVE CONTROL FORCE OF HYBRID ISOLATOR IS ESTIMATED BY FUZZY LOGIC ALGORITHMS. THE INFLUENCES OF THE COMBINED SYSTEMS ON THE RESPONSES OF THE BENCHMARK STRUCTURE UNDER THE TWO NEAR FIELD EARTHQUAKE (NEWHALL & ELCENTRO) ARE EVALUATED BY NONLINEAR DYNAMIC TIME HISTORY ANALYSIS.APPLICATIONS OF COMBINED CONTROL SYSTEMS CONSISTING OF PASSIVE OR ACTIVE SYSTEMS INSTALLED IN PARALLEL TO BASE-ISOLATION BEARINGS HAVE THE CAPABILITY OF REDUCING RESPONSE QUANTITIES OF BASE-ISOLATED (RELATIVE AND ABSOLUTE DISPLACEMENT) STRUCTURES SIGNIFICANTLY. THEREFORE IN DESIGN AND CONTROL OF IRREGULAR ISOLATED STRUCTURES USING THE PROPOSED CONTROL SYSTEMS, STRUCTURAL DEMANDS (RELATIVE AND ABSOLUTE DISPLACEMENT AND ECT) IN EACH DIRECTION MUST BE CONSIDERED SEPARATELY.

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APA: Copy

SHARIATMADAR, H., & Momtazdargahi, Mozhgan sadat. (2016). CONTROL OF BASE ISOLATED BENCHMARK USING COMBINED CONTROL STRATEGY WITH FUZZY ALGORITHM SUBJECTED TO NEAR-FIELD EARTHQUAKES. NATIONAL CONGRESS ON CIVIL ENGINEERING. SID. https://sid.ir/paper/943442/en

Vancouver: Copy

SHARIATMADAR H., Momtazdargahi Mozhgan sadat. CONTROL OF BASE ISOLATED BENCHMARK USING COMBINED CONTROL STRATEGY WITH FUZZY ALGORITHM SUBJECTED TO NEAR-FIELD EARTHQUAKES. 2016. Available from: https://sid.ir/paper/943442/en

IEEE: Copy

H. SHARIATMADAR, and Mozhgan sadat Momtazdargahi, “CONTROL OF BASE ISOLATED BENCHMARK USING COMBINED CONTROL STRATEGY WITH FUZZY ALGORITHM SUBJECTED TO NEAR-FIELD EARTHQUAKES,” presented at the NATIONAL CONGRESS ON CIVIL ENGINEERING. 2016, [Online]. Available: https://sid.ir/paper/943442/en

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