Development and verification of a simplified method to evaluate storm loadings on and capabilities of steel, template-type platforms
- Univ. of California, Berkeley, CA (United States). Dept. of Civil Engineering
During the past three decades, an immense amount of effort has been devoted to development of sophisticated computer programs to enable the assessment of storm wind, wave, and current loadings and the ultimate limit state capacity characteristics of conventional, pile-supported, template-type offshore platforms. These programs require high degrees of expertise to operate properly, are expensive to purchase and maintain, and require large amounts of manpower and time to complete the analyses. Due to the sophistication of these programs and the expertise required to operate them, experience has shown that it is easy to make mistakes that are difficult to detect and that can have significant influences on the results. This paper summarizes the development of simplified procedures to evaluate storm loading imposed on and induced in template-type platforms and to evaluate the ultimate limit state lateral loading capacities of such platforms. Reasonable simplifications and high degrees of user friendliness have been employed in development of the software to reduce the engineering effort, expertise, and costs associated with the analyses. Verification of these procedures has been accomplished by comparing the results from the simplified analyses with the results from three-dimensional, linear and nonlinear analyses of a variety of template-type platforms. Good agreement between results from the two types of analyses has been developed for the evaluations of both loadings and capacities.
- OSTI ID:
- 100706
- Report Number(s):
- CONF-950116--; ISBN 0-7918-1291-X
- Country of Publication:
- United States
- Language:
- English
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