Finite‐Element Nonlinear Analysis of Stressed‐Arch Frames
Publication: Journal of Structural Engineering
Volume 117, Issue 10
Abstract
The paper describes a nonlinear analysis that can be applied to study the strength and behavior of stressed‐arch frames. The unique feature of the structural system is the way the arches are erected without the use of cranes or scaffolding but by the use of a posttensioning process. For some highly curved structures, the top chord may be plastically deformed during the erection procedure. The finite‐element nonlinear analysis was developed to simulate the geometric nonlinear behavior and plasticity in the stressed‐arch, particularly the top chord. The paper describes the nonlinear analysis including the arch elements used, the implementation of plasticity, and the iterative strategies employed to solve the nonlinear problem. A series of tests on panels removed from the stressed‐arch frames, which have been described in earlier papers and reports, is simulated using the nonlinear analysis to verify its accuracy for application to stressed‐arch frames. A brief description of the application of the nonlinear analysis and panel tests to complete systems is also provided in the paper.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 117 • Issue 10 • October 1991
Pages: 2819 - 2837
Copyright
Copyright © 1991 ASCE.
History
Published online: Oct 1, 1991
Published in print: Oct 1991
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