中空夹层钢管混凝土柱在长期荷载作用下的力学性能研究

李永进; 陶忠

doi:10.13204/j.gyjz200712005

中空夹层钢管混凝土柱在长期荷载作用下的力学性能研究

doi: 10.13204/j.gyjz200712005

李永进,
陶忠

1.
福州大学土木工程学院福州 350002

基金项目:

福建省引进高层次人才科研启动费资助项目;福建省科技计划重点项目(编号:2005H033)

详细信息

作者简介:
李永进，男，1980年11月出生，博士研究生

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- 文章访问数: 132
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- 被引次数: 0
出版历程
- 收稿日期: 2007-08-05
- 刊出日期: 2007-12-20

BEHAVIOR OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS SUBJECTED TO LONG-TERM SUSTAINED LOADS

1.
College of Civil Engineering,Fuzhou University Fuzhou 350002

摘要

摘要: 基于美国混凝土协会ACI 209(1992)提供的混凝土徐变和收缩模型,对长期荷载作用下中空夹层钢管混凝土柱的变形和承载力进行计算。分析加荷龄期、持荷时间、长期荷载比、名义含钢率、钢材屈服强度、内钢管厚度、混凝土强度、空心率、长细比和荷载偏心率等参数对中空夹层钢管混凝土柱变形特性和承载力的影响。最后,在系统分析各影响因素的基础上,提出长期荷载作用对中空夹层钢管混凝土柱承载力影响系数的计算方法。
- 钢管混凝土 /
- 中空夹层 /
- 长期荷载 /
- 变形 /
- 承载力
Abstract: Based on the creep and shrinkage models of the concrete under sustained loads proposed in ACI 209 (1992), calculations of the deformation and load- bearing capacity of concrete- filled double skin steel tubular (CFDST) columns are presented in this paper.Influences of several parameters, such as loading age, sustained time, nominal steel ratio, sustained load level, steel strength, inner steel thickness, concrete strength, hollow ratio, slenderness ratio and load eccentricity on the deformation of the columns are analyzed.Formulas to calculate the ultimate bearing capacity of the CFDST columns with long- term sustained loading effects are presented.
- concrete-filled steel tube /
- double skin /
- long-term sustained loads /
- deformation /
- load- bearing capacity

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参考文献(8)

陶忠, 于清.新型组合结构柱: 试验、理论与方法.北京: 科学出版社, 2006

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ACI Committee 2091 Predi ct ion of Creep, Shrinkage and TemperatureEffects in Concrete Structures.Designing for Effects of Creep, Shrinkageand Temperature in Concrete Structures.ACI SP27- 3, 1992: 51- 93

李永进, 杨有福, 韩林海.圆中空夹层钢管混凝土柱在长期荷载作用下的力学性能研究PP第十届全国组合结构会议论文集.2005: 189- 192

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