MODIFICATION OF DISPLACEMENT COEFFICIENT METHOD IN ESTIMATION OF TARGET DISPLACEMENT FOR REGULAR CONCRETE BRIDGES BASED ON ASCE 41-06 STANDARD

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BEHESHTI AVAL S.B.; JAHANFEKR E.

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Journal Paper

Paper Information

Journal: CIVIL ENGINEERING INFRASTRUCTURES JOURNAL Year:2015 | Volume:48 | Issue:1 Page(s): 101-120

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Title

MODIFICATION OF DISPLACEMENT COEFFICIENT METHOD IN ESTIMATION OF TARGET DISPLACEMENT FOR REGULAR CONCRETE BRIDGES BASED ON ASCE 41-06 STANDARD

Author(s)

BEHESHTI AVAL S.B. | JAHANFEKR E.

Keywords

CONCRETE REGULAR BRIDGE

CORRECTION FACTOR

DISPLACEMENT COEFFICIENT METHOD

NONLINEAR DYNAMIC ANALYSIS

NONLINEAR STATIC ANALYSIS

Abstract

Displacement Coefficient Method (DCM) stipulated in the ASCE 41-06 standard is becoming the preferred method for seismic rehabilitation of buildings in many high-seismic-hazard countries. Applications of the method for non-building constructions such as bridges are beyond the scope of this standard. Thus its application to this kind of structure should be approached with care. Target displacement has reasonable accuracy for buildings with strong columns and weak beams, where there is the development of plastic hinges. Due to high stiffness and strength of the deck relative to the piers in most bridges, this mechanism does not occur, and it is necessary to evaluate the accuracy of DCM for such structures. In this research, an attempt is made to evaluate the credibility of DCM in the ASCE/SEI 41-06 standard for estimating target drifts in concrete regular bridges under strong ground motions. To apply the extension of the method to bridge structures, the definition of new correction factor CB, which should be multiplied to previous coefficients, is required. This novel coefficient can improve the accuracy of the mentioned method in accessing seismic displacement demands. The coefficient is presented for soil types A to D based on NEHRP soil classification. The validity of the modified DCM is examined for several bridges with use of nonlinear dynamic analysis. Good correlation is found between both procedures.

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APA: Copy

BEHESHTI AVAL, S.B., & JAHANFEKR, E.. (2015). MODIFICATION OF DISPLACEMENT COEFFICIENT METHOD IN ESTIMATION OF TARGET DISPLACEMENT FOR REGULAR CONCRETE BRIDGES BASED ON ASCE 41-06 STANDARD. CIVIL ENGINEERING INFRASTRUCTURES JOURNAL (CEIJ) (JOURNAL OF FACULTY OF ENGINEERING), 48(1), 101-120. SID. https://sid.ir/paper/689798/en

Vancouver: Copy

BEHESHTI AVAL S.B., JAHANFEKR E.. MODIFICATION OF DISPLACEMENT COEFFICIENT METHOD IN ESTIMATION OF TARGET DISPLACEMENT FOR REGULAR CONCRETE BRIDGES BASED ON ASCE 41-06 STANDARD. CIVIL ENGINEERING INFRASTRUCTURES JOURNAL (CEIJ) (JOURNAL OF FACULTY OF ENGINEERING)[Internet]. 2015;48(1):101-120. Available from: https://sid.ir/paper/689798/en

IEEE: Copy

S.B. BEHESHTI AVAL, and E. JAHANFEKR, “MODIFICATION OF DISPLACEMENT COEFFICIENT METHOD IN ESTIMATION OF TARGET DISPLACEMENT FOR REGULAR CONCRETE BRIDGES BASED ON ASCE 41-06 STANDARD,” CIVIL ENGINEERING INFRASTRUCTURES JOURNAL (CEIJ) (JOURNAL OF FACULTY OF ENGINEERING), vol. 48, no. 1, pp. 101–120, 2015, [Online]. Available: https://sid.ir/paper/689798/en

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