Nonlinear Stability of Ring-Stiffened Prestressed Domes
Publication: Journal of Structural Engineering
Volume 126, Issue 7
Abstract
Stability of a newly proposed structural system, namely, the prebuckled or prestressed dome with ring stiffener, is investigated. The prestressed dome is different from traditional domes in that it is made by first elastically buckling shallow, straight radial members and then attaching them to their supports. A special-purpose algorithm devised to consider a staged construction method of the system using nonlinear finite-element models is implemented into the program named DOME3D. Stability of the prestressed dome with two different rise-to-span ratios is studied with a varying number of ring stiffeners. The study shows that the stiffened system is not vulnerable to loading imperfections leading to side-sway buckling. The stiffening methods increased the limit load by more than 100% and changed the buckling mode of the system. For some stiffener configurations, the behavior of the stiffened domes was similar to shell-like domes. The results showed that the stiffening system leads to significant increase in the strength-to-weight ratio of the novel type structure, and improvement in the overall stability behavior of the dome.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Belytschko, T., and Hsieh, B. J. (1973). “Nonlinear transient finite element analysis with convected coordinates.” Int. J. Numer. Methods Engrg., 7(3), 255–271.
2.
Chini, S. A., and Amde (Wolde-Tinsae), A. M. (1988a). “Buckling test of prestressed arches in centrifuge.”J. Engrg. Mech., ASCE, 114(6), 1063–1075.
3.
Chini, S. A., and Amde (Wolde-Tinsae), A. M. (1988b). “Effect of prestressing on elastica arches.”J. Engrg. Mech., ASCE, 114(10), 1791–1800.
4.
Crisfield, M. A. (1981). “A fast incremental/iterative solution procedure that handles snap-through.” Comp. and Struct., 13(1–3), 55–62.
5.
Crisfield, M. A. (1990). “A consistent co-rotational formulation for non-linear three dimensional beam elements.” Comp. Meth. Appl. Mech. Engrg., 81, 131–150.
6.
Huddleston, J. V. (1970). “Behavior of a steep prestressed arch made from a buckled struct.” J. Appl. Mech. Trans., 37(4), 984–994.
7.
Huddleston, J. V. (1972). “Dead-load effects on a proposed very-large-size dome.” Proc., IASS Symp. on Shell Struct. and Climatic Influences, University of Alberta, Calgary, Alta., Canada, 395–404.
8.
Mirmiran, A., and Amde (Wolde-Tinsae),A. M. (1993). “Buckling and postbuckling of prestressed sandwich arches.”J. Struct. Engrg., ASCE, 119(1), 262–278.
9.
Mirmiran, A., and Amde, A. M. (1995). “Effect of fabrication process on prestressed composite arches.”J. Struct. Engrg., ASCE, 121(1), 124–131.
10.
Ragavan, V. ( 1997). “Nonlinear stability analysis of stiffened prestressed domes using the finite element method.” PhD thesis, University of Maryland, College Park, Md.
11.
Ragavan, V., and Amde, A. M. (1999). “Nonlinear buckling and postbuckling of cable-stiffened prestressed domes.”J. Engrg. Mech., ASCE, 125(10), 1164–1172.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 126 • Issue 7 • July 2000
Pages: 838 - 843
History
Received: Jul 30, 1999
Published online: Jul 1, 2000
Published in print: Jul 2000
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.