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

Journal of Chongqing Jiaotong University(Natural Science) ›› 2010, Vol. 29 ›› Issue (6): 841-845.

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.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

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.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

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。

Abstract

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

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

CLC Number:

U443.38

LIU Rui，LEI Yu-liang，ZHOU Shui-xing. Calculation of Main Cable with Double-lifts in Single Span with Non-support Cable Crane System[J]. Journal of Chongqing Jiaotong University(Natural Science), 2010, 29(6): 841-845.

刘睿，雷雨亮，周水兴. 无支架缆索吊装系统单跨双吊点主缆计算[J]. 重庆交通大学学报（自然科学版）, 2010, 29(6): 841-845.

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