多点支撑旋转斜拉桥不平衡称重试验研究

IF 0.2 Q4 ENGINEERING, CIVIL
Zhipeng Tang, Quansheng Sun, Zifeng Gu, Yafeng Zhao, Haoyang Zhang
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引用次数: 0

摘要

为了保证旋转过程的安全,旋转前的称重实验尤为重要。在此基础上,本文以某双塔双索预应力混凝土旋转斜拉桥为背景,针对依托工程旋转过程中遇到的特殊障碍等问题,提出了采用臂撑与球铰联合受力的多点支撑旋转称重实验。首先,从理论上推导了各种情况下的相关称重实验公式。然后根据现场试验结果计算顶进过程中极限状态下的顶推力,代入相关公式,计算出称重试验的相关参数。最后根据称重结果调整配重,进行结构旋转。旋转过程中角速度稳定,结构旋转成功。通过对臂撑与球铰结合力的多点支撑旋转称重试验的成功实践,可为类似桥梁的设计和施工提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
RESEARCH ON UNBALANCED WEIGHING EXPERIMENT OF MULTI-POINT BRACED SWIVEL CABLE-STAYED BRIDGE
To guarantee the safety of the swivel process, the weighing experiment before the swivel is especially important. Based on this, this paper takes a twin-tower, double-cable prestressed concrete swivel cable-stayed bridge as the background and suggests a multi-point braced swivel weighing experiment involving the joint force of the arm-brace and the spherical hinge to solve problems such as a particular obstacle in the relying project's swivelling process. Firstly, the relevant weighing experiment formulas for various circumstances were theoretically derived. The field test results were then used to calculate the jacking force at the limit state during the jacking process, which was then substituted into the relevant formulae, and the relevant parameters of the weighing experiment were calculated. Finally, the counterweight is adjusted based on the weighing results to carry out the structural rotation. The angular velocity was stable during the swivelling process, and the structure was successfully swivelled. The successful practice of a multi-point braced swivel weighing experiment involving the joint force of the arm-brace, and the spherical hinge can provide a reference for the design and construction of similar bridges.
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来源期刊
自引率
0.00%
发文量
38
审稿时长
10 weeks
期刊介绍: The Civil Engineering Journal’s objective is to present the latest progress in research and development in civil engineering. It is desired to provide free and up to date information regarding innovations in various civil engineering fields. The Civil Engineering Journal is opened for all authors worldwide that follow the journal‘s requirements (theme, template and affirmative reviews). The journal is administrated by a public university (Civil Engineering faculty, Czech Technical University in Prague) and therefore publishing is free of charge with no exceptions. Main journal themes correspond to specialization of the Civil Engineering Faculty, CTU in Prague. Namely: Applied informatics Architecture Building Constructions and Municipal Engineering Building structures Building materials and components Building physics, building services Construction technology Construction management and economics Geodesy, Cartography, GIS Geotechnics Hydraulics and hydrology Hydraulic structures Indoor environmental and building services engineering Landscape water conservation Road and railway structures Sanitary and ecological engineering Structural mechanics Urban facility management Urban design, Town and regional planning Water management, Water structures.
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