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Safety of erection and repair of steel tanks with geometric imperfections using heavylift jack-up system
Abstract
Safety analysis is performed of cylindrical vertical steel tanks during erection using heavylift jack up system. During an assembly or repair process a set of hydraulic supports is used. It allows to use the in-place lifting of heavy steel constructions on the required height. Wind can strongly influence stability of the lifted tank. Any geometric imperfections can reduce the critical or limit load. In the work failures of the hydraulic supports were considered. The geometric imperfections were described as free vibration shapes and implemented in the finite element models. Additionally, the influence of random discrepancies around the jack supports on the tank mechanical behaviour was analysed.
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- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Title of issue:
- Shell Structures Theory and Applications. - Vol. 3 strony 507 - 510
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Górski J., Mikulski T., Sorn P..: Safety of erection and repair of steel tanks with geometric imperfections using heavylift jack-up system, W: Shell Structures Theory and Applications. - Vol. 3, 2014, CRC Press ,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1201/b15684-127
- Verified by:
- Gdańsk University of Technology
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