Geometric state transfer method for construction control of a large-segment steel box girder with hoisting installation

作     者：Jin-feng WANG Hua-wei XIANG Jiang-tao ZHANG Tian-mei WU Rong-qiao XU Jin-feng WANG;Hua-wei XIANG;Jiang-tao ZHANG;Tian-mei WU;Rong-qiao XU

作者机构：College of Civil Engineering and ArchitectureZhejiang UniversityHangzhou 310058China 

基　　金：Project supported by the Zhejiang Provincial Natural Science Foundation of China(No.LZ16E080001) the National Natural Science Foundation of China(Nos.51578496 and 51878603) 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2020年第21卷第5期

页      码：382-391页

摘      要：This paper aims to address the problem of geometric state control of large-segment steel box girders in offshore hoisting during the construction of large-span bridges. First, the geometric state control indexes of a large-segment steel box girder are determined, such as the manufacturing parameters of the top and bottom slabs, the width of the annular joint, and the support position. Second, the geometric state equations and state transfer matrixes of large-segment steel box girders under different conditions are deduced by taking the mileage and elevation of control points as basic state variables. In application of the geometric state transfer method in the construction control of the Hong Kong-Zhuhai-Macao Bridge, the width of the annular joint and the position parameters for the support of the large-segment steel box girder are predicted precisely. Moreover, the manufacturing parameters of the top and bottom slabs of the steel box girders are calculated reliably. The measured values show that the width of the annular joint is basically the same with the difference of less than 2 mm, the eccentricity of bridge support is less than 20 mm, and the elevation error of the bridge deck is within-10 mm to +15 mm, which meets the construction accuracy. Using the geometric state transfer method, the rapid and accurate installation of the Hong Kong-Zhuhai-Macao Bridge has been realized, demonstrating that the precise control of the geometric state of a steel box girder with ectopic installation and multi-state transition can be realized by using the geometric state transfer method.

主 题 词：Large-segment steel box girder Offshore hoisting Construction control Geometric state Transfer matrix 

学科分类：081406[081406] 08[工学] 0814[工学-地质类] 082301[082301] 0823[工学-农业工程类] 

核心收录：

D　O　I：10.1631/jzus.A1900213

馆 藏 号：203923029...