Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate

This paper analyzes the influence of outer diameter of steel tube, wall thickness of steel tube, steel strength and concrete strength on the axial bearing capacity of short columns reinforced by circular steel tube and ultra high performance concrete with coarse aggregate (UHPC-CA) by orthogonal tes...

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Main Authors: TANG Jiajun, WANG Tan, LI Jiuyang
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2021-01-01
Series:Renmin Zhujiang
Subjects:
Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.02.009
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author TANG Jiajun
WANG Tan
LI Jiuyang
author_facet TANG Jiajun
WANG Tan
LI Jiuyang
author_sort TANG Jiajun
collection DOAJ
description This paper analyzes the influence of outer diameter of steel tube, wall thickness of steel tube, steel strength and concrete strength on the axial bearing capacity of short columns reinforced by circular steel tube and ultra high performance concrete with coarse aggregate (UHPC-CA) by orthogonal test. The results show that: The influence of various factors on the axial bearing capacity of short columns reinforced by circular steel tube and UHPC-CA is in the order of steel tube outer diameter > steel strength > steel tube wall thickness > concrete strength. The axial bearing capacity increases with the increase of outer diameter, wall thickness and strength of the steel tube, decreases slightly first and then increases gradually with the increase of UHPC-CA strength, and increases with the increase of hoop coefficient. With the increase of the diameter-thickness ratio, the axial bearing capacity of Q235 steel short columns decreases, while that of Q345 and Q390 steel short columns increases.
format Article
id doaj-art-725f9b3d2f374b6fb838adae67802aa2
institution Kabale University
issn 1001-9235
language zho
publishDate 2021-01-01
publisher Editorial Office of Pearl River
record_format Article
series Renmin Zhujiang
spelling doaj-art-725f9b3d2f374b6fb838adae67802aa22025-01-15T02:29:51ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352021-01-014247648986Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse AggregateTANG JiajunWANG TanLI JiuyangThis paper analyzes the influence of outer diameter of steel tube, wall thickness of steel tube, steel strength and concrete strength on the axial bearing capacity of short columns reinforced by circular steel tube and ultra high performance concrete with coarse aggregate (UHPC-CA) by orthogonal test. The results show that: The influence of various factors on the axial bearing capacity of short columns reinforced by circular steel tube and UHPC-CA is in the order of steel tube outer diameter > steel strength > steel tube wall thickness > concrete strength. The axial bearing capacity increases with the increase of outer diameter, wall thickness and strength of the steel tube, decreases slightly first and then increases gradually with the increase of UHPC-CA strength, and increases with the increase of hoop coefficient. With the increase of the diameter-thickness ratio, the axial bearing capacity of Q235 steel short columns decreases, while that of Q345 and Q390 steel short columns increases.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.02.009ultra high performance concrete with coarse aggregate (UHPC-CA)circular steel tubeaxial bearing capacityhoop coefficientdiameter-thickness ratio
spellingShingle TANG Jiajun
WANG Tan
LI Jiuyang
Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
Renmin Zhujiang
ultra high performance concrete with coarse aggregate (UHPC-CA)
circular steel tube
axial bearing capacity
hoop coefficient
diameter-thickness ratio
title Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
title_full Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
title_fullStr Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
title_full_unstemmed Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
title_short Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate
title_sort orthogonal analysis of axial bearing capacity of short columns reinforced by circular steel tube and ultra high performance concrete with coarse aggregate
topic ultra high performance concrete with coarse aggregate (UHPC-CA)
circular steel tube
axial bearing capacity
hoop coefficient
diameter-thickness ratio
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2021.02.009
work_keys_str_mv AT tangjiajun orthogonalanalysisofaxialbearingcapacityofshortcolumnsreinforcedbycircularsteeltubeandultrahighperformanceconcretewithcoarseaggregate
AT wangtan orthogonalanalysisofaxialbearingcapacityofshortcolumnsreinforcedbycircularsteeltubeandultrahighperformanceconcretewithcoarseaggregate
AT lijiuyang orthogonalanalysisofaxialbearingcapacityofshortcolumnsreinforcedbycircularsteeltubeandultrahighperformanceconcretewithcoarseaggregate