中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2010, Vol. 29 ›› Issue (6): 841-845.

• •    下一篇

无支架缆索吊装系统单跨双吊点主缆计算

刘睿1，雷雨亮2，周水兴1   

  1. 1.重庆交通大学土木建筑学院，重庆 400074; 2.北京海龙公路工程公司，北京 102206
  • 收稿日期:2010-10-09 修回日期:2010-11-01 出版日期:2010-12-15 发布日期:2015-01-22
  • 作者简介:刘睿(1981—)，男，四川宜宾人，硕士研究生，主要从事桥梁结构设计与旧桥加固研究方面的工作。E-mail:80941291@qq.com。

Calculation of Main Cable with Double-lifts in Single Span with Non-support Cable Crane System

LIU Rui1，LEI Yu-liang2，ZHOU Shui-xing1   

  1. 1.School of Civil Engineering ＆ Architecture，Chongqing Jiaotong University，Chongqing 400074，China; 2.Beijing Hailong Highway Engineering Company，Beijing 102206，China
  • Received:2010-10-09 Revised:2010-11-01 Online:2010-12-15 Published:2015-01-22

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摘要： 利用缆索静力平衡原理，建立了主缆按双吊点位置的分段曲线方程，推导了相应的主缆垂度和水平张力计算 公式，分析了主缆双吊点距离、主缆跨径、主缆自重及吊重等参数对水平张力的影响。结果表明:影响主缆水平张 力的主要因素是两吊点间距与主缆跨径之比，当两者之比在0．05以内时，用单吊点法和双吊点法计算结果差异很 小，可忽略不计。

关键词: 无支架缆索吊装系统, 主缆水平张力, 双吊点, 分段曲线方程, 主缆垂度

Abstract: Based on the principle of static equilibrium of cable，segmental curve equations of main cable with double-lifts in single span were established; formulae of the sag and horizontal tension were obtained; the influence of distance of doublelifts， span，self-weight，load and the like on horizontal tension was analyzed． Results indicated that the ratio of distance of double-lifts and span of main cable played an important role in affecting horizontal tension of the cable; the tolerance by the method of double-lifts and single-lift was quite small，which can be ignored．

Key words: non-support cable crane system, horizontal tension of main cable, double-lifts, segment curve equations, sag of main cable

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