高温后泡沫铝填充镀锌钢管扭转性能研究

Torsion behavior of aluminum foam filled galvanized steel tubes after high temperature

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成果归属作者:

王展光 ; 汪洋

成果归属机构:

建筑工程学院

作者

王展光 ;汪洋

单位

凯里学院建筑工程学院

关键词

镀锌钢管;泡沫铝;高温作用;扭转试验;受扭承载力;强度折减系数

英文关键词

galvanized steel tube;aluminum foam;high temperature;torsion test;torsion bearing capacity;strength reduction factor

摘要

通过对高温前后泡沫铝填充镀锌钢管进行扭转试验,分析温度、泡沫铝孔隙率、含钢率等参数对泡沫铝镀锌钢管扭转性能的影响。试验结果表明,高温前、后泡沫铝填充镀锌钢管的扭矩-扭转角曲线相似,可以分为弹性扭转阶段、屈服平台阶段、下降阶段和强化阶段四个阶段;泡沫铝填充镀锌钢管扭转承载能力随孔隙率增大而减小,随含钢量、长细比增大而增大;高温后,镀锌钢管的扭转承载能力下降明显。将高温前后泡沫铝填充镀锌钢管的承载力与理论公式进行比较,两者吻合较好。通过求解高温下强度折减系数,发现其值要高于英国BS 5950-1:2000、澳大利亚AS 4100-1998和中国CECS 200:2006规范的推荐值。

英文摘要

The torsion test of aluminum foam filled galvanized steel tube before and after high temperature was performed. The influences of temperature, porosity ratio of aluminum foam and steel ratio on torsion behavior of aluminum foam filled galvanized steel tube were analyzed. Experimental results show that the torsion curve of aluminum foam filled galvanized steel tube before and after high temperature is similar, and can be divided into four stages: the elastic torsion stage, yield platform stage, descending stage and hardening stage. Its torsion load capacity decreases with increasing porosity ratio of aluminum foam and increases at a higher steel content and slenderness ratio. After high temperature, torsion load capacity of galvanized steel tube decreases significantly. Bearing capacity of the aluminum foam filled galvanized steel tube before and after high temperature was compared with the theoretical formula,which indicating good agreement. It is found that the strength reduction factor under elevated test temperature is higher than that recommended by British BS 5950-1:2000, Australian AS 4100-1998 and Chinese CECS 200:2006.

基金

国家自然科学基金项目(11462007)

语种

中文

来源

建筑结构学报,2018(S2):155-161.

影响因子

0.932

收录

中国科学引文数据库(CSCD) ;北大核心期刊;EI;中国科技核心期刊

中图分类号

TU392.3

出版日期

2018-12-25

提交日期

2019-03-04

引用参考

王展光;汪洋. 高温后泡沫铝填充镀锌钢管扭转性能研究[J]. 建筑结构学报,2018(S2):155-161.

全文附件授权许可

知识共享许可协议-署名

  • dc.title
  • 高温后泡沫铝填充镀锌钢管扭转性能研究
  • dc.contributor.author
  • 王展光;汪洋
  • dc.contributor.author
  • WANG Zhanguang;WANG Yang;Architectural and Civil Engineering Institute, Kaili University
  • dc.contributor.affiliation
  • 凯里学院建筑工程学院;
  • dc.publisher
  • 建筑结构学报
  • dc.publisher
  • Journal of Building Structures
  • dc.identifier.year
  • 2018
  • dc.identifier.issue
  • S2
  • dc.identifier.volume
  • v.39
  • dc.identifier.page
  • 155-161
  • dc.date.issued
  • 2018-12-25
  • dc.language.iso
  • 中文
  • dc.contributor.major
  • 建筑设计及其理论
  • dc.subject
  • 镀锌钢管;泡沫铝;高温作用;扭转试验;受扭承载力;强度折减系数
  • dc.subject
  • galvanized steel tube;aluminum foam;high temperature;torsion test;torsion bearing capacity;strength reduction factor
  • dc.description.abstract
  • 通过对高温前后泡沫铝填充镀锌钢管进行扭转试验,分析温度、泡沫铝孔隙率、含钢率等参数对泡沫铝镀锌钢管扭转性能的影响。试验结果表明,高温前、后泡沫铝填充镀锌钢管的扭矩-扭转角曲线相似,可以分为弹性扭转阶段、屈服平台阶段、下降阶段和强化阶段四个阶段;泡沫铝填充镀锌钢管扭转承载能力随孔隙率增大而减小,随含钢量、长细比增大而增大;高温后,镀锌钢管的扭转承载能力下降明显。将高温前后泡沫铝填充镀锌钢管的承载力与理论公式进行比较,两者吻合较好。通过求解高温下强度折减系数,发现其值要高于英国BS 5950-1:2000、澳大利亚AS 4100-1998和中国CECS 200:2006规范的推荐值。
  • dc.description.abstract
  • The torsion test of aluminum foam filled galvanized steel tube before and after high temperature was performed. The influences of temperature, porosity ratio of aluminum foam and steel ratio on torsion behavior of aluminum foam filled galvanized steel tube were analyzed. Experimental results show that the torsion curve of aluminum foam filled galvanized steel tube before and after high temperature is similar, and can be divided into four stages: the elastic torsion stage, yield platform stage, descending stage and hardening stage. Its torsion load capacity decreases with increasing porosity ratio of aluminum foam and increases at a higher steel content and slenderness ratio. After high temperature, torsion load capacity of galvanized steel tube decreases significantly. Bearing capacity of the aluminum foam filled galvanized steel tube before and after high temperature was compared with the theoretical formula,which indicating good agreement. It is found that the strength reduction factor under elevated test temperature is higher than that recommended by British BS 5950-1:2000, Australian AS 4100-1998 and Chinese CECS 200:2006.
  • dc.description.sponsorship
  • 国家自然科学基金项目(11462007)
  • dc.description.sponsorshipsource
  • 国家自然科学基金
  • dc.identifier.CN
  • 11-1931/TU
  • dc.identifier.issn
  • 1000-6869
  • dc.description.indexed
  • 中国科学引文数据库(CSCD) ;北大核心期刊;EI;中国科技核心期刊
  • dc.identifier.if
  • 0.932
  • dc.subject.discipline
  • TU392.3
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