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Cross-section Bearing Capacity Analysis of Eccentrically-loaded Columns of Square Steel Tube Filled with Steel-reinforced Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年03期
Page:
92-95
Research Field:
Publishing date:
2008-09-20

Info

Title:
Cross-section Bearing Capacity Analysis of Eccentrically-loaded Columns of Square Steel Tube Filled with Steel-reinforced Concrete
Author(s):
ZHAO Tong-feng1; 2;  WANG Lian-guang1;  WU Shao-min2
1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, Liaoning, China; 2. Department of Foundation, Shenyang Artillery Academy of PLA, Shenyang 110162, Liaoning, China
Keywords:
square steel tube filled with steel-reinforced concrete;  eccentrically-loaded column;  cross-section bearing capacity;  slenderness ratio;  eccentricity ratio
PACS:
TU528.59
DOI:
-
Abstract:
In order to further study the mechanical properties of eccentrically-loaded column of square steel tube filled with steel-reinforced concrete, authors used superposition method to deduce the calculation formula of cross-section bearing capacity under yield conditions of both compressional and tensile regions of steel tube and steel-reinforced. The influences of slenderness ratio, eccentricity ratio, stirrup ratio, steel-reinforced ratio on bearing capacity of eccentrically-loaded columns were also analyzed. Examples about computation process were given. Results indicate that the increase of eccentricity ratio makes its bearing capacity dropped rapidly; bearing capacity drops linearly with the increase of slenderness ratio and increases rapidly with the increase of the stirrup and reinforced ratio; the calculation formula proposed above can be used for certifying the bearing capacity, and it can offer reference for design of eccentrically-loaded columns of square steel tube filled with steel-reinforced concrete.

References:

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Memo

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Last Update: 2008-09-20