Techno Press


Steel and Composite Structures   Volume 26, Number 1, January10 2018, pages 31-44
DOI: http://dx.doi.org/10.12989/scs.2018.26.1.031
 
Mechanical performance of a new I-section weak-axis column bending connection
Linfeng Lu (Corr. Author), Yinglu Xu, James B.P. Lim

 
Abstract     [Full Text]
    This paper reports a novel steel beam-to-column connection suitable for use in the weak axis of I-section column. Monotonic and cyclic loading experimental investigations and numerical analysis of the proposed weak-axis connection were conducted, and the calculation procedure of the beam-column relative rotation angle and plastic rotation angle was developed and described in details. A comparative analysis of mechanical property and steel consumption were employed for the proposed I-section column weak-axis connection and box-section column bending connection. The result showed that no signs of fracturing were observed and the plastic hinge formed reliably in the beam section away from the skin plate under the beam end monotonic loading, and the plastic hinge formed much closer to the skin plate under the beam end cyclic loading. The fracture of welds between diaphragm and skin plate would cause an unstable hysteretic response under the column top horizontal cyclic loading. The proposed weak-axis connection system could not only simplify the design calculation progress when I-section column is adopted in frame structural design but also effectively satisfy the requirements of \'strong joint and weak member\', as well as lower steel consumption.
 
Key Words
    steel frame; weak-axis; bending connection; panel zone; I-section column; constructability
 
Address
Linfeng Lu, Yinglu Xu: School of Civil Engineering, Chang\'an University, 75 Chang\'an Middle Rd, Xi\'an, PR China
James B.P. Lim: Department of Civil and Environmental Engineering, University of Auckland (City Campus),
Engineering Building, 20 Symonds Street, Auckland, New Zealand
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2019 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: technop@chol.com