波形钢腹板组合梁抗震性能试验
CSTR:
作者:
作者单位:

(1.同济大学 桥梁工程系, 上海 200092; 2. 四川省交通运输厅公路规划勘察设计研究院, 成都 610041)

作者简介:

王思豪(1994—),男,硕士研究生; 刘玉擎(1962—),男,教授,博士生导师

通讯作者:

刘玉擎,yql@tongji.edu.cn

中图分类号:

U448.216

基金项目:

国家自然科学基金(51578406)


Experimental investigation on seismic behaviors of composite girder with corrugated steel web
Author:
Affiliation:

(1. Department of Bridge Engineering, Tongji University, Shanghai 200092, China; 2. Sichuan Province Transport Department Highway Planning, Survey, Design and Research Institute, Chengdu 610041, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为探讨波形钢腹板内衬混凝土和焊接加劲肋的两种构造波形钢腹板组合梁抗震性能,通过剪跨比为1.67的波形钢腹板组合梁缩尺模型拟静力加载试验,比较分析了破坏特点、滞回曲线、承载力、延性、强度与刚度退化、耗能能力、变形恢复能力等基本力学特性.研究结果表明:钢腹板内衬混凝土和焊接加劲肋的波形钢腹板组合梁分别为弯剪和剪切破坏,腹板分别发生局部屈曲和整体屈曲,混凝土板根部均产生剪切斜裂缝;内衬混凝土相比焊接加劲肋的波形钢腹板组合梁的承载力、延性和耗能能力较高;两种构造均可提高腹板稳定性,滞回曲线形状相对饱满,强度退化系数均大于0.9,粘滞阻尼系数大于0.2,残余变形率小于0.61,表明两种构造的波形钢腹板组合梁强度退化不明显,耗能能力和变形恢复能力较强.

    Abstract:

    To investigate the seismic behaviors of partially encased composite girder with corrugated steel web and composite girder with stiffened corrugated steel web, the pseudo static models tests with shear span ratio of 1.67 were conducted. The basic seismic performances including failure features, hysteretic curves, load-carrying capacity, ductility, strength and stiffness degradation, energy dissipation and deformation recovery ability were analyzed. The results indicate that the partially encased specimen presented bending-shear failure with local buckling of the corrugated steel web, while the stiffened one was failed by shearing and overall buckling of the web. In addition, the inclined cracks appeared at the end of fixed part for all tested bodies. Compared with the stiffened girder, the partially encased one exhibited a higher load-carrying capacity, ductility and energy dissipation ability. These two kinds of webs can improve the stability of the corrugated steel web, the hysteretic curves are relatively plump and the strength degradation coefficients are greater than 0.9, the viscous damping coefficients are more than 0.2, and the residual deformation ratios are less than 0.61. All of these data indicate that the proposed webs have the smaller strength degradation, and greater energy dissipation and deformation recovery ability.

    参考文献
    相似文献
    引证文献
引用本文

王思豪,刘玉擎,庄卫林,姚红兵.波形钢腹板组合梁抗震性能试验[J].哈尔滨工业大学学报,2018,50(3):61. DOI:10.11918/j. issn.0367-6234.201705067

复制
相关视频

分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-05-12
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-06-14
  • 出版日期:
文章二维码