东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (2): 164-166.DOI: -

• 论著 • 上一篇    下一篇

钢与高强混凝土预应力组合梁承载力计算

王连广;刘莉;郑宇   

  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;沈阳建筑大学土木工程学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-02-15 发布日期:2013-06-24
  • 通讯作者: Wang, L.-G.
  • 作者简介:-
  • 基金资助:
    建设部科技攻关项目(2003-2-135);;

Carrying capacity calculation of prestressed Steel-HS concrete composite beams

Wang, Lian-Guang (1); Liu, Li (1); Zheng, Yu (2)   

  1. (1) Sch. of Resources and Civil Eng., Northeastern Univ., Shenyang 110004, China; (2) Sch. of Civil Eng., Shenyang Jianzhu Univ., Shenyang 110168, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-02-15 Published:2013-06-24
  • Contact: Wang, L.-G.
  • About author:-
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摘要： 根据预应力组合梁结构特性及实际受力情况,分别建立了预应力组合梁在不同受力阶段的截面应力及组合梁抗弯极限承载力的计算公式,通过试验验证了理论公式的正确性·研究结果表明,在承受正弯矩预应力组合梁的钢梁下翼缘施加预应力时组合梁的承载力提高幅度较小,而在承受负弯矩组合梁的钢梁上翼缘和混凝土板中施加预应力均可提高组合梁的承载力,并且在混凝土板中施加预应力效果最为明显·

关键词: 高强混凝土, 预应力, 组合梁, 弹性分析, 塑性分析, 承载力计算

Abstract: According to the structural characteristics and actual loading conditions, some formulas were derived to calculate the cross-sectional stress and ultimate bending strength of the prestressed Steel-HS concrete composite beams in different loading phases. Testing results verified the correctness of these formulas. For the carrying capacity of a prestressed composite beam on which a positive moment is acting, it cannot be improved much more if applying prestress to the lower flange of steel beam. However, it may be effectively improved for the composite beam on which a negative moment is acting if applying prestress to the upper flange of steel beam and may be improved to the best if applying prestress to the concrete slabs.

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