...
首页> 外文期刊>Engineering Structures >Experimental research on high strength concrete slender columns subjected to compression and uniaxial bending with unequal eccentricities at the ends
【24h】

Experimental research on high strength concrete slender columns subjected to compression and uniaxial bending with unequal eccentricities at the ends

机译:高强混凝土细长柱在端部偏心不等的情况下受压单轴弯曲的试验研究

获取原文
获取原文并翻译 | 示例
           

摘要

This paper presents an experimental research on 32 columns tested with unequal eccentricities at the ends. The purpose of this research is twofold: first, the contribution to the knowledge of these components and second, to calibrate and check simplified approaches. The analyzed variables are: the concrete strength (normal and high strength), the slenderness, the amount of longitudinal reinforcement, the ratio between eccentricities at the ends and the relative eccentricity applied. Ultimate strength and deformed shape of the column have been analyzed and simplified approaches proposed by EC-2 (2004) and by ACI-318 (2008) have been compared with experimental results. In general, the accuracy of the simplified methods proposed in the EC-2 (2004) and the ACI-318 (08), for HSC columns is lower than for NSC columns.Ductility factor (μ_1) according to (EC-8 (2005)) has been assessed among the experimental tests in order to compare the displacement capacity. In general, ductility increases when the relative eccentricity (e_2/b), the ratio between eccentricities (β), and the amount of longitudinal reinforcement (β) increase, and when the slenderness of the column (λ_g) and the concrete strength (f_c) decreases.
机译:本文介绍了对32根端部具有不同偏心率的色谱柱进行的实验研究。这项研究的目的是双重的:第一,对这些组件的知识的贡献;第二,用于校准和检查简化方法。分析的变量为:混凝土强度(普通强度和高强度),细长度,纵向钢筋的数量,端部偏心率之间的比率以及所施加的相对偏心率。分析了柱的极限强度和变形形状,并将EC-2(2004)和ACI-318(2008)提出的简化方法与实验结果进行了比较。通常,在EC-2(2004)和ACI-318(08)中提出的简化方法对HSC色谱柱的准确性低于NSC色谱柱。延性系数(μ_1)根据(EC-8(2005) ))已在实验测试中进行了评估,以比较位移能力。通常,当相对偏心率(e_2 / b),偏心率之比(β)和纵向钢筋量(β)增大以及柱的细长度(λ_g)和混凝土强度(f_c )减少。

著录项

  • 来源
    《Engineering Structures》 |2013年第3期|220-232|共13页
  • 作者单位

    Universitat Politecnka de Valencia, Institute de Ciencia y Tecnologia del Hormigon, Spain;

    Universitat Politecnka de Valencia, Institute de Ciencia y Tecnologia del Hormigon, Spain;

    Universitat Politecnka de Valencia, Institute de Ciencia y Tecnologia del Hormigon, Spain Department of Construction Engineering, Office 9, School of Civil Engineering, Polytechnic University of Valencia, Camino de Vera s, Valencia 46022, Spain;

    Universitat Politecnka de Valencia, Institute de Ciencia y Tecnologia del Hormigon, Spain;

    Universitat Politecnka de Valencia, Institute de Ciencia y Tecnologia del Hormigon, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    high strength concrete; slender columns; unequal eccentricities;

    机译:高强度混凝土细长的柱子;不平等的偏心;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号