Behavior of Bolted Joints of Cable-Braced Grid Shells
Publication: Journal of Structural Engineering
Volume 141, Issue 12
Abstract
The type of joint used is important with respect to the behavior of grid shells. Prototype static experiments and numerical analyses were conducted to study the mechanical behaviors of a new type of joint: bolted joints of cable-braced grid shells. The actions of the bending moment, the shear force, and the axial force were all considered in static experiments and numerical analyses of the bolted joints of cable-braced grid shells. To evaluate the in-plane and out-of-plane bending stiffness and the strength of the bolted joints, the behaviors of the bolted joints were compared with those of rigid joints. The main conclusions are as follows. First, the failure of bolted joints results from either buckling at the end of the tube or fracturing of the bolts. The failure of rigid joints results from buckling at the end of the tube. The failure of bolted joints without steel shims results from the fracturing of the bolts. Second, bolted joints can be considered to be out-of-plane, semirigid joints and in-plane, pinned joints. The use of steel shims greatly improved the static behavior of the bolted joints, and the shims changed the transferring path of the axial force on the bolted joints.
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Acknowledgments
This research was sponsored by the National Natural Science Foundation of China under Grants 51278117 and 51125031, by the Program for New Century Excellent Talents in University under Grant NCET-13-0120, by the Six Talent Peak project in Jiangsu Province under Grant 2013-JZ-009, and by a project funded by the Priority Academic Program Development of the Jiangsu Higher Education Institutions.
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Published In
Journal of Structural Engineering
Volume 141 • Issue 12 • December 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Oct 10, 2014
Accepted: Mar 12, 2015
Published online: May 27, 2015
Discussion open until: Oct 27, 2015
Published in print: Dec 1, 2015
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