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Steel and Composite Structures
  Volume 32, Number 6, September25 2019 , pages 769-778

The effect of beam section property on the behavior of modular prefabricated steel moment connection
Seyed Morteza Kazemi, Mohammad Reza Sohrabi and Hasan Haji Kazemi

    The specially prefabricated steel moment connections with pyramid head is one of the significant innovations in the steel structures forms to improve the installation time and simplify the construction procedure. The beams in this structure form are supported by two top and bottom angles and web double angles. Such a configuration despite its advantages increases the welding operation and filed installation time and costs. In this paper, the effect of using beams with channel and I section in three classes of seismically compact, seismically non-compact, and slender section according to width-to-thickness ratio on the behavior of the connection was investigated under monotonic and cyclic loading. Modeling was performed by ABAQUS and verified by the results of an experimental specimen. The findings indicated that using I and channel section instead of angle section reduces the amount of welding materials as well as easing the installation procedure. However, it has no significant effect on the ultimate strength and ductility of the connection. Furthermore, if the beam section is seismically compact, this form is considered as a special moment frame that has a rotation capacity up to 0.04 radians without any reduction in connection moment resistance.
Key Words
    new connection; modular pre-fabricated structural form; cyclic loading; monotonic loading; I and channel beam section
(1) Seyed Morteza Kazemi:
Department of Civil Engineering, Kashmar Branch, Islamic Azad University, Kashmar, Iran;
(2) Mohammad Reza Sohrabi:
Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran;
(3) Hasan Haji Kazemi:
Civil Engineering Department, Ferdowsi University, Mashhad, Iran.

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