EVALUATING EFFICIENCY OF DIFFERENT RESPONSES IN STRUCTURAL DAMAGE DETECTION BY SENSITIVITY-BASED ANALYSES

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HAVAEI GHOLAM REZA; ZARE REZA

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Seminar Paper

Paper Information

Seminar: NATIONAL CONFERENCE ON STRUCTURAL ENGINEERING IRAN
Year:2015 | Issue:1

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Title

EVALUATING EFFICIENCY OF DIFFERENT RESPONSES IN STRUCTURAL DAMAGE DETECTION BY SENSITIVITY-BASED ANALYSES

Author(s)

HAVAEI GHOLAM REZA | ZARE REZA

Keywords

DAMAGE DETECTION

RESPONSE

SENSITIVITY ANALYSIS

NOISE

REGULARIZATION

Abstract

DIFFERENT METHODS ARE USED TO ESTIMATE THE LOCATION AND INTENSITY OF DAMAGE IN STRUCTURES AND THESE METHODS USE DIFFERENT STATIC AND DYNAMIC RESPONSES. EVEN THOUGH MANY METHODS HAVE BEEN PROPOSED FOR DAMAGE DETECTION IN THE LAST TWO DECADES, SENSITIVITY BASED ANALYSES ARE STILL POPULAR. IN THIS RESEARCH, THE EFFECTS OF DIFFERENT RESPONSES IN SENSITIVITY-BASED METHODS, FOR TWO CASES OF ADDITIVE AND MULTIPLICATIVE NOISES IN A TRUSS AND A TWO LAYERS DRAMATIC DOME ARE STUDIED. FIRST, BY IMPOSING NOISE IN VARIOUS RESPONSES AND IMPLEMENTING MONTE CARLO SAMPLING, AN INDEX WAS DEVISED TO EVALUATE THE SENSITIVITY OF EACH RESPONSE TO SENSOR LOCATION. THEN, DIFFERENT RESPONSES ARE USED TO DETECT DAMAGE IN STRUCTURES, BUT SINCE IT IS AN ILL-POSED PROBLEM, TIKHONOV REGULARIZATION SCHEME IS USED TO EVALUATE EXACT RESULTS OF EACH RESPONSE, THROUGH AN UPDATING PROBLEM. BY COMPARING THE RESULTS, IT IS CONCLUDED THAT SENSITIVITY OF STATIC RESPONSES TO SENSORS LOCATION IS LESS AND STATIC RESPONSE IS THE MOST EFFECTIVE RESPONSE WITH FEWER ERRORS IN DAMAGE DETECTION OF THE CASES.

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APA: Copy

HAVAEI, GHOLAM REZA, & ZARE, REZA. (2015). EVALUATING EFFICIENCY OF DIFFERENT RESPONSES IN STRUCTURAL DAMAGE DETECTION BY SENSITIVITY-BASED ANALYSES. NATIONAL CONFERENCE ON STRUCTURAL ENGINEERING IRAN. SID. https://sid.ir/paper/908445/en

Vancouver: Copy

HAVAEI GHOLAM REZA, ZARE REZA. EVALUATING EFFICIENCY OF DIFFERENT RESPONSES IN STRUCTURAL DAMAGE DETECTION BY SENSITIVITY-BASED ANALYSES. 2015. Available from: https://sid.ir/paper/908445/en

IEEE: Copy

GHOLAM REZA HAVAEI, and REZA ZARE, “EVALUATING EFFICIENCY OF DIFFERENT RESPONSES IN STRUCTURAL DAMAGE DETECTION BY SENSITIVITY-BASED ANALYSES,” presented at the NATIONAL CONFERENCE ON STRUCTURAL ENGINEERING IRAN. 2015, [Online]. Available: https://sid.ir/paper/908445/en

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