东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (5): 571-574.DOI: -

• 论著 • 上一篇    下一篇

钢骨高强混凝土受弯构件非线性分析

慕光波;王连广;   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院 辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-05-15 发布日期:2013-06-23
  • 通讯作者: Mu, G.-B.
  • 作者简介:-
  • 基金资助:
    辽宁省自然科学基金资助项目(2001101012)

Nonlinear analysis of flexural members of steel reinforced high-strength concrete

Mu, Guang-Bo (1); Wang, Lian-Guang (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-05-15 Published:2013-06-23
  • Contact: Mu, G.-B.
  • About author:-
  • Supported by:
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摘要： 为进一步研究钢骨高强混凝土受弯构件的工作性能,通过基于平截面假定的有限条带法,对其在单调荷载作用下的整个受力过程进行分析,计算得到弯矩与曲率、荷载与变形的关系曲线,以及混凝土强度、含钢率对荷载-变形的影响曲线·研究表明,当外荷载为极限荷载的14%左右时,钢骨高强混凝土构件受拉区混凝土开裂;在相同荷载条件下,钢骨高强混凝土构件的延性比钢骨普通混凝土构件的有所降低;在相同变形条件下,随着含钢率的增加,钢骨高强混凝土受弯构件的承载能力得到显著提高·

关键词: 钢骨, 高强混凝土, 受弯构件, 有限条带法, 非线性分析, 本构模型

Abstract: To investigate further the working performance of flexural members of steel-reinforced high-strength concrete under monotonic loading, a full-range nonlinear analysis is made through the finite ribbon method based on flat section assumption. By computation, the moment-curvature and load-deformation relationships are obtained, as well as those among concrete strength, volumetric percentage of steel, load and deformation of a flexural member. It is obvious that a concrete member cracks in tensional area as the external load comes to 14% of its ultimate load or so. On the same loading condition the ductility of the member is less than that of conventional steel-reinforced concrete members. However, on the same deformation condition, the bearing capacity of the flexural members of steel-reinforced high-strength concrete increase obviously with the increasing volumetric percentage of steel.

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