JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (6): 120-126.doi: 10.6040/j.issn.1672-3961.0.2016.117

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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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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

CLC Number: 

  • U441
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