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） ›› 2008, Vol. 27 ›› Issue (5): 675-678.

• • 上一篇    下一篇

桥梁线形控制中徐变变形的一种计算方法

陈五四1, 张宝利2, 郭瑞东1, 曾德荣1   

  1. 1. 重庆交通大学 土木建筑学院, 重庆 400074;
    2. 中铁十九局集团 第四工程有限公司, 内蒙古 通辽 028000
  • 收稿日期:2007-11-28 修回日期:2008-02-29 出版日期:2008-10-20 发布日期:2016-11-07
  • 作者简介:陈五四(1980-),男,湖北黄冈人,硕士研究生,研究方向为大跨桥梁检测及智能控制。E-mail:awaboy61540@yaho.com;Tel:13272601408。

One Calculation Method of Creep Deformation in Bridge Linear Controlling

CHEN Wu-si1, ZHANG Bao-li2, GUO Rui-dong1, ZENG De-rong1   

  1. 1. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
    2. The Fourth Engineering Company of China Railway 19th Bureau Group, Inner Monglia Tongliao 028000, China
  • Received:2007-11-28 Revised:2008-02-29 Online:2008-10-20 Published:2016-11-07

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摘要： 对于大跨径混凝土连续刚构桥的施工监控,线形的控制主要集中在预拱度的设置上,而预设拱度又与桥梁结构的变形计算紧密相连。其中,混凝土徐变变形是很难计算准确的,因而从理论上建立了一个计算这种徐变变形的理论计算公式,其计算结果与其它方法的计算结果基本一致,优点是计算简单准确。

关键词: 混凝土徐变, 线形控制, 预拱度, 施工控制

Abstract: Monitoring the long-span continuous rigid bridge construction,linear controlling mainly concentrates on the pre-camber settings.And pre-arch is closely linked with the cach of bridge structure deformation.The concrete creep deformation is difficult to calculate accurately,therefore,a theoretical formula is established theoretically to calculate this kind of creep deformation.Its calculating results are basically consistent with those got by other methods,but its simple calculation and high precision are advantageous.

Key words: concrete creep, linear control, pre-arch, the controlling of construction

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