|本期目录/Table of Contents|

[1]杜修力,卢爱贞,赵 均.小偏心钢筋混凝土柱受压性能的尺寸效应试验[J].建筑科学与工程学报,2015,32(01):1-7.
　DU Xiu-li,LU Ai-zhen,ZHAO Jun.Experiment on Size Effect of Small Eccentric Reinforced Concrete Columns Under Compressive Loads[J].Journal of Architecture and Civil Engineering,2015,32(01):1-7.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
32卷
期数:
2015年01期
页码:
1-7
栏目:
出版日期:
2015-01-30

文章信息/Info

Title:
Experiment on Size Effect of Small Eccentric Reinforced Concrete Columns Under Compressive Loads
作者:
杜修力，卢爱贞，赵 均
北京工业大学城市与工程安全减灾省部共建教育部重点实验室
Author(s):
DU Xiu-li, LU Ai-zhen, ZHAO Jun
Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology
关键词:
小偏心钢筋混凝土柱; 尺寸效应; 单调加载; 开裂荷载; 偏心距; 安全储备系数
Keywords:
small eccentric reinforced concrete column;  size effect;  monotonic loading;  crack load;  eccentricity;  safety storage coefficient
分类号:
-
DOI:
-
文献标志码:
A
摘要:
为分析小偏心钢筋混凝土柱受压性能的尺寸效应，对偏心距分别为0.1倍截面有效高度和0.25倍截面有效高度的2组几何相似的钢筋混凝土柱进行偏心受压破坏试验，柱截面几何尺寸分别为200 mm×200 mm，400 mm×400 mm，800 mm×800 mm，对比分析了其破坏形态、截面应变分布、承载力、变形能力，揭示了其尺寸效应规律。研究结果表明：小偏心钢筋混凝土柱的受压破坏形态和横截面应变分布规律基本相同，其尺寸效应不明显；承载力和变形能力存在明显尺寸效应，随着截面尺寸的增大，其安全储备降低，变形能力减弱。
Abstract:
To analyze size effect of small eccentric concrete columns under compressive loads, two groups of reinforced concrete columns, whose eccentricities were 0.1 and 0.25 times effective height of sections, were produced, and the specimen sizes were 200 mm×200 mm, 400 mm×400 mm, 800 mm×800 mm respectively. Damage mode, sectional strain distribution, bearing capacity and deformability of reinforced concrete columns were compared to reveal the size effect law. The results show that the size has less effect on damage mode and the sectional strain distribution of columns, and the size effect laws on bearing capacity and deformability of columns are obvious. The safety storage and deformability of columns decrease with the size increasing.

参考文献/References:

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备注/Memo

备注/Memo:
更新日期/Last Update: 2015-02-02