Title page for ETD etd-110298-213557

Type of Document

Master's Thesis

Author

Goh, Julian Kok Seng

URN

etd-110298-213557

Title

Analysis of Pressurized Arch-Shells

Degree

Master of Science

Department

Civil Engineering

Advisory Committee

Advisor Name	Title
Plaut, Raymond H.	Committee Chair
Holzer, Siegfried M.	Committee Member
Kapania, Rakesh K.	Committee Member

Keywords

shell
arch
Rayleigh-Ritz method
wind load
structural analysis
snow load

Date of Defense

1998-11-19

Availability

unrestricted

Abstract

A pressurized arch-shell structural component made of flexible material is considered.
The component is inflated with high internal pressure. The behavior of similar types
of structures, such as a pair of leaning pressurized arches and pressurized arch-supported
membrane shelters, has been investigated in the past. More recently, several types of
pressurized structures have been incorporated as part of the framework for a variety of
structural systems. Particularly, the U.S. Army has been investigating the use of large
lightweight and transportable pressurized arch-shell structures to be used as maintenance
shelters for vehicles, helicopters, and airplanes.

The formulated equations using thin shell theory are applied to a pressurized arch-shell
component. A numerical investigation based on the Rayleigh-Ritz method is utilized to
determine the behavior of arch-shells under various types of loading. The types of loading
include a uniformly distributed vertical load representing snow, a wind load, and a
horizontal side load distributed along the arc length. Deflections, stress resultants, and
moments at various locations are computed for two types of shapes: circular and non-circular
arch-shells.

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