Stress analysis of the concerning regions of the vertically tensioned prestressed concrete simple beam

Journal of Chongqing Jiaotong University(Natural Science) ›› 2004, Vol. 23 ›› Issue (6): 32-36.

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Stress analysis of the concerning regions of the vertically tensioned prestressed concrete simple beam

HU Xiao-lun¹, ZHOU Zhi-xiang²

1.Department of Bridge Engineering, Tongji University, Shanghai 200092,China; 2.Department of Science & Techology, Chongqing Jiaotong University,Chongqing 400074,China)

Received:2004-01-14 Revised:2004-02-23 Online:2004-12-15 Published:2015-05-18

横张预应力砼梁关键部位的应力分析

胡晓伦¹，周志祥²

1.同济大学桥梁工程系，上海200092；2.重庆交通学院科技处，重庆400074

作者简介:胡晓伦（1974—），男，湖北浠水人，博士生，从事预应力砼新技术的应用和桥梁风致振动研究工作

Abstract

Abstract: Proposed by prof.ZHOU Zhi-xiang in 1994, the vertically tensioned prestressed technology is different from the general post-tensioned technology in the construction details ,which affect directly its popularization.Using the ANSYSs submodeling technology, the authors discuss comparatively the bond length of prestressed tendons and the stress distributing of bond anchorage region and bolt fixation region

Key words: vertically tensioned prestressed concrete, simple beam, ANSYS, bond-slip, stress

摘要： 横张预应力砼技术属新型专利技术，由重庆交通学院周志祥教授在1994年提出，在构造措施上有别于常规后张法，其受力性能的优劣直接影响该技术的推广应用。本文以一跨度5m的T型试验小梁为研究对象，利用 ANSYS软件中的子模型技术，对两个关键部位（粘结锚固区和插销定位区）进行了仿真分析，验证了预应力筋锚固长度的选取问题，分析了粘结锚固区和插销定位区砼的应力分布情况，并对局部加强措施进行了对比分析。

关键词: 横张预应力, 简支梁, ANSYS, 粘结滑移, 应力

CLC Number:

HU Xiao-lun, ZHOU Zhi-xiang. Stress analysis of the concerning regions of the vertically tensioned prestressed concrete simple beam[J]. Journal of Chongqing Jiaotong University(Natural Science), 2004, 23(6): 32-36.

胡晓伦，周志祥. 横张预应力砼梁关键部位的应力分析[J]. 重庆交通大学学报（自然科学版）, 2004, 23(6): 32-36.

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Stress analysis of the concerning regions of the vertically tensioned prestressed concrete simple beam

横张预应力砼梁关键部位的应力分析

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