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Evaluation of Panel Zone Shear Strength in Cruciform Columns, Box-Columns and Double- Web Columns

Sina. Sarfarazi 1, Ali. Fakhraddini 2, and Kiana. Modaresahmadi 3
1. Department of Civil Engineering, Graduate University of Advanced Technology, Kerman, Iran
2. Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
3.Department of Civil Engineering, Khavaran Institute of Higher Education, Mashhad, Iran

Abstract—Moment Resisting Frames (MRFs) are one of the widely used lateral load resisting systems that resist lateral forces through the flexural and shear strength of the beams and columns. On the other hand, in these systems, column performance has special importance as the main part of tolerating resistant demands made by earthquake in both directions. The most dominant factor in a MRF is how to transfer moment between parts of the frame. Panel zone is a column region which is surrounded by the continuity plates and column flanges. In this study, firstly evaluates the adequacy of the panel zone relationship in AISC for cruciform columns, box-columns and double-web columns using non-linear finite element analysis method. Then the panel zone shear capacities of these columns that have the same plastic capacity are compared with each other. Part of the results of this study indicate AISC relations that only have considered the effect of web column in shear strength ,so that for cruciform column underestimate shear capacity about 20% less than accurate values and overestimate about 30% in boxed shape column and double-web column.

Index Terms—panel zone, shear strength, cruciform columns, box-columns, double-web columns, beam-column connection

Cite: Sina. Sarfarazi, Ali. Fakhraddini, and Kiana. Modaresahmadi, "Evaluation of Panel Zone Shear Strength in Cruciform Columns, Box-Columns and Double- Web Columns," International Journal of Structural and Civil Engineering Research, Vol. 5, No. 1, pp. 52-56, February 2016. doi: 10.18178/ijscer.5.1.52-56