高边坡预应力混凝土连续箱梁悬臂顶进监测与分析

IF 0.2 Q4 ENGINEERING, CIVIL

Civil Engineering Journal-Stavebni Obzor Pub Date : 2023-10-30 DOI:10.14311/cej.2023.03.0032

Zhe Zhang, Quansheng Sun, Chao Zhang, Xiaoqian Li

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引用次数: 0

摘要

随着交通运输业和经济的快速发展，越来越多的桥梁已经不能满足交通的需求。拆除和重建桥梁会延长施工周期，浪费大量资源，增加施工成本。本文以哈尔滨东三环高速旧高架桥吊装改造工程为背景，结合有限元分析和现场试验对施工过程进行了分析。在施工过程中对桥梁的路线、标高和偏差进行了监测，并开发了一套校正系统来解决这些问题。进行了结构分析，计算了不均匀顶进时的内力。本文所描述的施工工艺可以有效地解决大吨位、高坡度、高高度的城市连续桥的顶进问题。千斤顶改造工程的成功实施，验证了所采取措施的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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MONITORING AND ANALYSIS OF CANTILEVER JACKING OF HIGH SLOPE PRESTRESSED CONCRETE CONTINUOUS BOX GIRDER

Due to the rapid development of the transportation industry and economy, an increasing number of bridges have been unable to meet the demands of traffic. Demolishing and rebuilding bridges can lengthen the construction period, waste a lot of resources, and increase construction costs. Based on the lifting renovation project of the old Harbin Dongsan Ring Expressway viaduct, this paper combines finite element analysis and on-site testing to analyze the construction process. The bridge alignment, elevation, and deviations were monitored during the construction process, and a correction system was developed to address such issues. Structural analysis was conducted to evaluate the internal forces when uneven jacking occurred. The construction process described in this paper can effectively solve the jacking problems of urban continuous bridges with large tonnage, high slopes, and heights. The successful implementation of the jacking retrofitting project has verified the reliability of the measures taken.

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来源期刊

Civil Engineering Journal-Stavebni Obzor ENGINEERING, CIVIL-

自引率

0.00%

发文量

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.