Concrete Cylinder Structures Under Hydrostatic Loading

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Concrete Cylinder Structures Under Hydrostatic Loading

Author(s): Harvey H. Haynes and Bjorn A. Nordby

Publication: Journal Proceedings

Volume: 73

Issue: 2

Appears on pages(s): 87-96

Keywords: buckling;cylindrical shells;hulls (structures);hydrostatic pressure; implosions;limit design method;loads (forces);oceans;offshore concrete structures;shells (struc-tural forms);stability;strength;stresses;structural analysis;structural design; thickness.

Date: 2/1/1976

Abstract:
Several design equations are presented to predict implosion of thin-walled and thick-walled concrete cylinder structures under hydrostatic loading. Of significance is the development of a modified Donnell equation to analyze moderately long, thin-wailed cylinders for implosion. Most concrete structures for offshore oil production platforms fall in this category. Donnell’s equation is modified by an empirical plasticity-reduction factor which varies from 1.0 to 0.10 for cylinder wall stress at implosion that vary from 0.4 fc' to 1.1fc' respectively. For P long thin-walled cylinders, a modified Bresse equation is used. For short cylinders, Lame’s equation is used where the cylinder wall stress at implosion is 1.1 fc'. For thick-walled cylinders, an empirical equation is presented. In a section on design for hydrostatic load, these equations are presented using the ultimate limit-state design approach.