莞惠城际大跨连续梁-拱组合结构竖转塔架结构设计及其施工关键技术.pdfVIP

莞惠城际大跨连续梁-拱组合结构竖转塔架 结构设计及施工关键技术 范春生 （中铁十四局集团第一工程发展有限公司，山东日照 276826 ） 摘要：结合莞惠城际铁路东莞水道特大桥跨东莞水道 （100+180+100）m 连续梁-拱桥施工实例，介绍了复杂条件 下竖转塔架的方案比选、竖转塔架材料及结构设计和优化、塔脚的理论分析、后锚系统的设计检算、拱肋拼装胎 架的设计及分析、提升系统的理论研究、竖转塔架的拼装及调试、计算机同步提升系统的设计及理论分析等各环 节，通过对各环节下的设计及模拟，及时掌握了解施工过程中的不利工况，提出了钢管拱竖转塔架拼装的关键控 制措施。 关键词：道路工程；连续梁-拱桥；竖转塔架；结构设计 The Key Technologies in Construction and The Design of Vertical Rotating Tower Structure of Large Span Continuous Beam - Arch Structure Crossing Dongguan and Huizhou FAN Chunsheng （China Railway 14th Bureau Group 1st Engineering Co., Ltd., Rizhao 276826, China） Abstract: This paper combines the construction example of Dongguan waterway large continuous Beam-Arch bridge of Dongguan and Huizhou intercity railway crossing the waterway (100+180+100), then introduce the comparison of scheme of vertical rotating tower structure vertical rotating tower material and the structural design and optimization, the tower foot after the theoretical analysis, the design calculation, the anchor system arch rib assembling jig design and analysis, improve system theory research, vertical rotating tower assembling and debugging, computer synchronous lifting system design and theoretical analysis of each link, through the design and Simulation of each link, timely grasp of the adverse conditions of solution in the process of construction, puts forward the key measures to control the vertical rotating tower assembled steel pipe archthe design and assemble of structure, finally we proposed the key control measurement of steel vertical rotating tower structure. Keywords: road engineering, continuous beam–arch bridge, vertical rotating tower, structural d