|Table of Contents|

Bearing capacity of concrete-filled double-skin steel-tube stub column(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年02期
Page:
70-74
Research Field:
Publishing date:
2009-02-20

Info

Title:
Bearing capacity of concrete-filled double-skin steel-tube stub column
Author(s):
ZHAO Jun-hai; MENG Xiao-jian; LIU Jian-jun; CAO Wen-tao
School of Civil Engineering,Chang’an University,Xi’an 710061,Shaanxi,China
Keywords:
structure engineering;  thinwalled steeltube effect;  concretefilled doubleskin steeltube;  thinwalled cylinder;  unified strength theory
PACS:
TU398.9
DOI:
-
Abstract:
Based on the unified limit solutions of thinwalled cylinder, the ultimate load calculation formula of concretefilled doubleskin steeltube stub column under axial loads was derived by considering the internal and external thinwalled steeltube effect. The results of this calculation formula were compared with the ones of experiment. The influences of steeltubes parameters, such as the ratio of diameter to thickness, the strength ratio of tension to compression and the intermediate principal stress, on the loading capacity of concrete column, were analyzed. The results show that: the presented formula has a little error compared with the experiment; the ultimate load decreases with the increase of the ratio of diameter to thickness and the strength ratio of tension to compression, increases with the increase of the intermediate principal stress. 3 tabs, 5 figs, 9 refs.

References:

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Last Update: 2009-02-20