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The Behavior of Anchor Connections of Cold-Formed Steel Roof Truss  

Kwon, Young Bong (영남대학교 토목도시환경공학부)
Kang, Sueng Won (영남대학교 토목공학과)
Chung, Hyun Suk ((주)피알와이 기획본부)
Choi, Young Hyun (대한컨설탄트)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.5, 2003 , pp. 519-529 More about this Journal
Abstract
In recent years, the use of cold-formed steel roof truss has been increased in the steel houses and high-rise apartments. The design of the roof truss anchor connections has been based on the experience and decision of designers. In this paper, the structural behavior of anchor connections based on experimental and decision is described. In the tests, truss members and connection members were jointed directly with self-drilling screw fasteners and the simple shaped connection member with excellent workability and structural capacity was used to connect roof truss and sub-structure. The connecting method was selected according to the construction material of sub-structure: chemical anchor for reinforced concrete structure and welding or DX-Pin for steel structures. The pull-out tests of various type anchor connection were executed to obtain the strength and the stiffness and the result have been compared with AISI(1996) and AlSC(1989) specifications, Simple formulas for the shear strength of screw connections have been propose and compared with tests.
Keywords
Cold-Formed Steel Sections; Roof Truss; Anchor Connections; Connecting Members; Pull-out Load; Tilting strength; Bearing Strength; Maximum Shear Strength;
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