Experimental Study on Size Effect of Reinforced Concrete Columns Subjected to Eccentric Loading

卢爱贞; 杜修力; 李冬; 赵均

doi:10.13409/j.cnki.jdpme.2016.02.017

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Experimental Study on Size Effect of Reinforced Concrete Columns Subjected to Eccentric Loading

更新时间：2025-12-11

- Experimental Study on Size Effect of Reinforced Concrete Columns Subjected to Eccentric Loading
- Vol. 36, Issue 2, Pages: 281-289(2016)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2016.02.017
  CLC： U375.3
- Published：2016
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[1]卢爱贞,杜修力,李冬,赵均.钢筋混凝土柱偏心受压性能的尺寸效应试验研究[J].防灾减灾工程学报,2016,36(02):281-289.

卢爱贞, 杜修力, 李冬, et al. Experimental Study on Size Effect of Reinforced Concrete Columns Subjected to Eccentric Loading[J]. 2016, 36(2): 281-289.
[1]卢爱贞,杜修力,李冬,赵均.钢筋混凝土柱偏心受压性能的尺寸效应试验研究[J].防灾减灾工程学报,2016,36(02):281-289. DOI： 10.13409/j.cnki.jdpme.2016.02.017.

卢爱贞, 杜修力, 李冬, et al. Experimental Study on Size Effect of Reinforced Concrete Columns Subjected to Eccentric Loading[J]. 2016, 36(2): 281-289. DOI： 10.13409/j.cnki.jdpme.2016.02.017.

摘要

为揭示钢筋混凝土偏心受压柱的力学性能随尺寸的变化规律

在5组不同偏心距、3种截面尺寸为（200×200）mm、（400×400）mm、（800×800）mm的钢筋混凝土柱偏心受压试验数据基础上

对比分析了试件几何尺寸及偏心距对破坏形态、承载力、峰值荷载下混凝土及钢筋应变、弯矩、变形能力的影响。结果表明:试件的屈服及峰值承载力均随偏心距的增大而减小

且峰值承载力随尺寸的增大而减小;峰值荷载下

混凝土应变随偏心距的增大而减小

钢筋应变随偏心距的增大而增大

且两者应变均随尺寸的增大而减小;试件的变形能力随偏心距的增大而减少

尺寸越大

延性越差。

Abstract

The eccentric compression test was performed on five groups of short columns of different sizes to investigate the size effect of reinforced concrete

the specimens were（200×200）

（400×400）

（800×800）mm respectively.Based on the results of the experiment

the effects of damage characteristics

load capacity

strain of concrete and steel bar under peak load

bending moment

and deformability on eccentricity and size were studied respectively.Study found that yield load

peak load

strain of concrete and deformability were decreasing with increasing of the eccentricity

but the strain of steel bar was increasing.The study also found that the performance was becoming lower with the size increasing and the size effect was obvious.

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references

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Experimental investigation and numerical simulation of post-peak behavior and size effect of reinforced concrete columns [J] . Materials and Structures . 2004 (3)

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