Joint Rotation and Geometric Nonlinear Analysis
Publication: Journal of Structural Engineering
Volume 112, Issue 4
Abstract
A geometric stiffness matrix for a beam element has been derived in a related paper. The derived matrix implies quasitangential behavior of bending moments and semitangential behavior of torques. Use of this element matrix in a three‐dimensional, large displacement analysis can result in an apparent lack of joint equilibrium. Alternative definitions for moments are studied for the purpose of resolving this problem. It is verified that equilibrium of a rotated angle joint can be achieved if each joint moment is defined as a semitangential moment.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 4 • April 1986
Pages: 879 - 905
Copyright
Copyright © 1986 ASCE.
History
Published online: Apr 1, 1986
Published in print: Apr 1986
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