PARAMETRIC STUDY ON LATERAL RESISTANCE AND EVALUATION OF SEISMIC RESPONSE MODIFICATION FACTOR-R OF STRAP-BRACED COLD-FORMED STEEL SHEAR WALLS

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ZEYNALIAN MEHRAN; TAJMIR RIAHI HOSSEIN; ABBASI SOORESHJANI MEHRAN

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Journal: Modeling in Engineering Year:2017 | Volume:15 | Issue:49 Page(s): 175-188

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Information Journal Paper

Title

PARAMETRIC STUDY ON LATERAL RESISTANCE AND EVALUATION OF SEISMIC RESPONSE MODIFICATION FACTOR-R OF STRAP-BRACED COLD-FORMED STEEL SHEAR WALLS

Author(s)

ZEYNALIAN MEHRAN | TAJMIR RIAHI HOSSEIN | ABBASI SOORESHJANI MEHRAN | Issue Writer Certificate

Keywords

COLD-FORMED STEEL STRUCTURESQ1

DIAGONAL BRACING STRAPQ1

SEISMIC RESPONSE MODIFICATION FACTORQ1

RESIDUAL STRESSESQ1

IMPERFECTIONQ1

Abstract

In this study, evaluation on lateral resistance and SEISMIC RESPONSE MODIFICATION FACTOR-R of strap-braced cold-formed steel shear walls is presented. Also, the results are compared with the prescibed values by the codes and standards. The structural parameters that are taken into account include: cross section of bracing straps, aspect ratio of the frames and studsa spacing. In this study, the effects of nonlinear behavior of steel, geometric IMPERFECTION of cold formed sections and RESIDUAL STRESSES induced by cold forming process are considered. The lateral strength and displacement of the frames will be determined by ANSYS finite element software. The results of the analysis show that the increase in strapsa cross-sections area and the ratio of width to height of the frame lead to increase of the frame capacity but changing the distances between the studs have no significant impact on the capacity of the frame. Also the response modification factors (R factors) of the studied frames are calculated in the range of 5.31 and 6.39. The results show that the prescribed R factors by the codes are conservative and can be improves, slightly.

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APA: Copy

ZEYNALIAN, MEHRAN, TAJMIR RIAHI, HOSSEIN, & ABBASI SOORESHJANI, MEHRAN. (2017). PARAMETRIC STUDY ON LATERAL RESISTANCE AND EVALUATION OF SEISMIC RESPONSE MODIFICATION FACTOR-R OF STRAP-BRACED COLD-FORMED STEEL SHEAR WALLS. JOURNAL OF MODELING IN ENGINEERING, 15(49 ), 175-188. SID. https://sid.ir/paper/173743/en

Vancouver: Copy

ZEYNALIAN MEHRAN, TAJMIR RIAHI HOSSEIN, ABBASI SOORESHJANI MEHRAN. PARAMETRIC STUDY ON LATERAL RESISTANCE AND EVALUATION OF SEISMIC RESPONSE MODIFICATION FACTOR-R OF STRAP-BRACED COLD-FORMED STEEL SHEAR WALLS. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2017;15(49 ):175-188. Available from: https://sid.ir/paper/173743/en

IEEE: Copy

MEHRAN ZEYNALIAN, HOSSEIN TAJMIR RIAHI, and MEHRAN ABBASI SOORESHJANI, “PARAMETRIC STUDY ON LATERAL RESISTANCE AND EVALUATION OF SEISMIC RESPONSE MODIFICATION FACTOR-R OF STRAP-BRACED COLD-FORMED STEEL SHEAR WALLS,” JOURNAL OF MODELING IN ENGINEERING, vol. 15, no. 49 , pp. 175–188, 2017, [Online]. Available: https://sid.ir/paper/173743/en

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