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山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (6): 120-126.doi: 10.6040/j.issn.1672-3961.0.2016.117

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斜拉桥塔梁同步施工过程的力学特性

张万志1,刘华2,3,张峰1,高磊1,姚晨1,刘冠之1   

  1. 1. 山东大学岩土与结构工程研究中心, 山东 济南 250061;2. 中铁大桥勘测设计院有限公司, 湖北 武汉 430050;3. 中铁大桥(南京)桥隧诊治有限公司, 江苏 南京 210061
  • 收稿日期:2016-04-11 出版日期:2016-12-20 发布日期:2016-04-11
  • 通讯作者: 张峰(1978— ),男,江苏泰州人,副教授,硕士生导师,工学博士,主要研究方向为桥梁承载能力评估与组合桥梁结构.E-mail:zhangfeng2008@sdu.edu.cn E-mail:940247134@qq.com
  • 作者简介:张万志(1988— ),男,山东泰安人,博士研究生,主要研究方向为斜拉桥结构承载力与稳定性分析.E-mail:940247134@qq.com
  • 基金资助:
    国家自然科学基金青年基金资助项目(51108249)

Mechanical properties of tower and beam synchronous construction of cable-stayed bridge

ZHANG Wanzhi1, LIU Hua2,3, ZHANG Feng1, GAO Lei1, YAO Chen1, LIU Guanzhi1   

  1. 1. School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. China Zhongtie Major Bridge Reconnaissance and Design Institute Co LTD, Wuhan 430050, Hubei, China;
    3. China Zhongtie Major Bridge(Nanjing)Bridge and Tunnel Detecting and Treatment Co LTD, Nanjing 210061, Jiangsu, China
  • Received:2016-04-11 Online:2016-12-20 Published:2016-04-11

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摘要： 为了研究斜拉桥在满堂支架分段拆除的塔梁同步施工过程中主梁、主塔和斜拉索等结构力学性能的变化,通过Midas/Civil(multitier distributed applications services/Civil)有限元分析软件,实现了斜拉桥施工过程的结构力学性能计算分析。依托亚洲最大转体重量斜拉桥—邹城斜拉桥(主跨为110 m+110 m独塔双柱双跨双索面混凝土斜拉桥)为背景开展研究,采用弹性受压连接单元模拟满堂支架,空间梁单元模拟主梁、主塔,考虑现场实际施工过程,开展了邹城斜拉桥结构受力和变形的数值计算。对比分析了数值计算结果与现场实测数据分析结果。结果表明:拆除满堂支架前后,支架支反力计算值最大增加382 kN,斜拉索索力计算最大变化值占该索索力的0.96%,实测索力最大变化值占该索索力的1.67%,主梁线型实测最大变化值为-7 mm。斜拉桥主梁相应节段的斜拉索张拉完成,是满堂支架分段拆除的塔梁同步施工应用于现场的前提条件。

关键词: Midas/Civil, 有限元, 力学性能, 斜拉桥, 塔梁同步施工, 满堂支架

Abstract: To investigate the change of mechanical properties of the beam, tower and cables during the tower and beam synchronous construction of the bridge together with segmental removing the full scaffold, the calculation model of the construction process of cable-stayed bridge was established by multitier distributed applications services/Civil(Midas/Civil)finite element software. Against the context of the maximum swivel weight of cable-stayed bridge in Asia—Zoucheng cable-stayed bridge(the main span is 220 m, single tower、 double column、 double span and double cable plane prestressed concrete cable-stayed bridge), the structure stress and the deformation of the cable-stayed bridge were analyzed. Full scaffolds were simulated by elastic connection elements and beam and tower by spatial beam elements. The results of numerical calculation and field test data were compared and analyzed, which showed that, before and after the demolition of full scaffold, the maximum added value of the support force was 382 kN, the calculated maximum value and the measured maximum value for the changes of the cable force were respectively 0.96% and 1.67%, and the linear maximum variation was -7 mm. The premise of the application of the construction method(tower and beam 山 东 大 学 学 报 (工 学 版)第46卷 - 第6期张万志,等:斜拉桥塔梁同步施工过程的力学特性 \=-synch ronous construction of cable-stayed bridge together with segmental removing the full scaffold)is that the cable force of the corresponding segment of the beam should have been applied.

Key words: Midas/Civil, cable-stayed bridge, tower and beam synchronous construction, finite element, mechanical properties, full scaffold

中图分类号: 

  • U441
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