Design of Intermediate Ring Stiffeners for Column-Supported Cylindrical Steel Shells

Date

2017-10-05

Author

Zeybek, Özer
Topkaya, Cem
Rotter, J Michael

Metadata

Show full item record

Item Usage Stats

219
views

0
downloads

A combination of a ring beam and an intermediate ring stiffener can be used for large silos to redistribute the stresses from the local support into uniform stresses in the shell. This paper explores the design requirements for intermediate ring stiffeners placed at or below the ideal location. Pursuant to this goal, the cylindrical shell below the intermediate ring stiffener is analyzed using the membrane theory of shells and the reactions produced by the stiffener on the shell are identified. Furthermore, the displacements imposed by the shell on the intermediate ring stiffener are obtained. These force and displacement boundary conditions are then applied to the intermediate ring stiffener to derive closed form expressions for the variation of the stress resultants around the circumference to obtain a strength design criterion for the stiffener. These analytical studies are then compared with complementary finite element analyses to verify closed-form design equations for ring stiffeners.

URI

https://hdl.handle.net/11511/78246

Conference Name

9th Hellenic Conference of Steel Structures, (5 - 07 Ekim 2017)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Strength and stiffness requirements for intermediate ring stiffeners on discretely supported cylindrical shells Zeybek, Ozer; Topkaya, Cem; Rotter, J. Michael (2015-11-01) Silos in the form of a cylindrical metal shell are often supported on a ring beam which rests on discrete column supports. This support condition produces a circumferential non-uniformity in the axial membrane stresses in the silo shell. One way of reducing the non-uniformity of these stresses is to use a very stiff ring beam which partially or fully redistributes the stresses from the local support into uniform stresses in the shell. A better alternative is to use a combination of a flexible ring beam and ...
Analysis of silo supporting ring beams resting on discrete supports Zeybek, Ozer; Topkaya, Cem; Rotter, J. Michael (Elsevier BV, 2019-02-01) Elevated cylindrical metal silos are often supported on a ring beam which rests on discrete column supports. The ring beam plays an important role in redistributing the majority of the discrete forces from the column supports into a more uniform stress state in the cylindrical wall, which is necessary to reduce the potential for buckling of the shell wall.
Design and analysis of radar antenna structure with optimum dynamic behavior Sun, Enver; Özgen, Gökhan Osman; Yaman, Yavuz; Department of Mechanical Engineering (2016) With the advance of technology the radar antenna structures are being smaller and their design alternatives are quite numerous that they can be produced in different shapes and can be conformed to original structures such as body panel of an aircraft or car which are composed of light weight thin shell structures. Radar antennas as an integral part of the air or ground vehicles are subjected to various dynamic loadings which effects its overall radiation pattern which results overall degradation of antenna ...
Development of a structural design methodology for filament winding composite rocket motor case Erturan, Yakup; Gürses, Ercan; Department of Aerospace Engineering (2019) Filament winding pressure vessels have a unique place in many areas such as space and ground applications for decades. Filament winding pressure vessels are used in products where weight is very critical. In such applications, composite winding pressure vessels have significant advantages over metal pressure vessels due to their high specific strength. In this study, it is aimed to design and analyze composite rocket motor cases produced by the filament winding method. Within the scope of the study, the dom...
Development of a shell finite element for large deformation analysis of laminated composites Yıldız, Tuba; Darendeliler, Haluk; Department of Mechanical Engineering (2008) The objective of the present work is to investigate the behavior of laminated fiber -reinforced polymer matrix composite shell structures under bending load with the help of a modified finite element computer code which was previously developed for the analysis of pseudo-layered single material shells. The laminates are assumed to be orthotropic and the formulation is adapted to first order shear deformation theory. The aim is to determine the large deformation characteristics numerically, and to predict th...

Citation Formats

Ö. Zeybek, C. Topkaya, and J. M. Rotter, “Design of Intermediate Ring Stiffeners for Column-Supported Cylindrical Steel Shells,” presented at the 9th Hellenic Conference of Steel Structures, (5 - 07 Ekim 2017), 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78246.