斜连续梁桥顶推施工过程二次内力分析  

Analysis of Secondary Internal Force for Oblique Continuous Beam in the Process of Incremental Launching

作　　者：黄宏辉 张涟英[2,3] 田仲初[3] 

机构地区：[1]贵州高速公路开发总公司,贵州贵阳550003 [2]贵州大学,贵州贵阳550003 [3]长沙理工大学,湖南长沙410076

出　　处：《贵州大学学报（自然科学版）》2010年第3期126-129,139,共5页Journal of Guizhou University:Natural Sciences

摘　　要：本文以张家界醴水大桥为例,着重论述了斜连续梁桥顶推施工过程中竖直、扭转累计误差的产生因素、引起的二次内力的大小,通过对计算结果的分析,提出了相应的防治措施,对提高斜连续梁顶推施工精度、消减次内力影响提供了有益的借鉴。Based on the construction of Lishui Bridge of Zhagnjiajie City,influencing factors of vertical and torsion accumulative error and secondary internal force caused by incremental launching construction of oblique continuous beam bridge were discussed.Corresponding preventive measures were put forward by analysis results.Those measures have great referring significance to improve construction precision of incremental launching construction of oblique continuous beam and depress effect of secondary internal force.

关 键 词：斜连续梁 顶推 二次内力 竖直累积误差 扭转累积误差 

分 类 号：O441.5[理学—电磁学]