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Structural Engineering and Mechanics
  Volume 13, Number 1, January 2002, pages 1-16

Connections of sleeve joint purlin system
S.H. Tan, L.K. Seah and Y. Li

    This paper presents the findings of an investigation carried out to determine the most
appropriate connections, in terms of rotational stiffness, to use for the optimum design of cold-formed Zed
section sleeve joint purlin system. Experiments and parametric studies were conducted to investigate the
effects of geometric variables on the behavior of the sleeve-purlin and cleat-purlin connections of the
sleeve joint purlin system. The variables considered were purlin size and thickness, sleeve size, thickness,
length and bolt position. The test results were used to verify the empirical expressions, developed herein,
employed to determine the rotational stiffness of connections. With the predicted connection stiffness, the
most suitable sleeve-purlin and cleat-purlin connections can be selected so as to produce an optimum
condition for the sleeve joint purlin system.

Key Words
    connection; cleat-purlin; cold-formed; joint; optimum design; purlin; rotational stiffness;
School of Mechanical & Production Engineering,
Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore

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