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An analytical investigation to improve the buckling capacity of hollow square pipe columns.

Publication: The Texas Journal of Science
Publication Date: 01-MAY-07 		Format: Online
Delivery: Immediate Online Access
Full Article Title: An analytical investigation to improve the buckling capacity of hollow square pipe columns.(Technical report)

Article Excerpt
Abstract. -- This study examined the effects of pressurization on buckling capacity in hollow square pipes. Analytical relationships between different parameters involved in this process are presented. Results reveal that pressurization not only increases the buckling capacity of hollow square pipes but can also reduce the amount of required material.

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Pressurizing hollow square pipes has never been examined as a means of increasing the buckling capacity. The main goal of this paper is to analytically show the effectiveness of pressurizing hollow square pipe columns as a means of improving their buckling capacity and saving material. Analytical relationships between different parameters in the buckling analysis are presented. It was found that pressurizing can increase the buckling capacity as well as help in saving material.

A number of investigations (Jahsman 1964; Wilhoit & Merwin 1967; Reddy & Calladine 1978) have been conducted to improve the buckling capacity of pipe columns using internal pressure. However, these investigations were limited to thin circular...

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