钢管拱二次竖向转体施工及单价分析  

Construction Technology and Unit Price Analysis of Secondary Vertical Rotating Construction of Railway Steel Tube Arch Bridge

作　　者：涂用石 

机构地区：[1]中铁大桥局集团有限公司,湖北武汉430050

出　　处：《铁路工程技术与经济》2018年第1期26-32,共7页Railway Engineering Technology and Economy

摘　　要：在险峻陡峭的大山峡谷间架设钢管拱桥,钢管拱肋采用二次竖向转体施工方案,是桥梁施工安全架设的新方法。他具有结构合理、受力明确、降低风险、安全可靠的特点。此文根据澜沧江特大桥的结构和施工特点,探讨钢管拱二次竖向转体施工组织和施工工艺,并对二次竖向转体施工的工料机消耗和综合单价进行分析。The steel tube arch bridge is usually built between the steep and steep mountain canyon, and the secondary vertical rotating construction scheme is adopted in the steel tube arch rib, which is a new method for construction of bridge construction safety. This construction scheme has the characteristics of reasonable structure, force definite, lower risk and safe and reliable. According to the structure and construction characteristics of Lantsang super major bridge, the construction organization and construction technology of secondary vertical rotating construction of railway steel tube arch bridge is analysis in this paper. And the consumption of artificial, material and mechanical and integrated unit price are analyzed.

关 键 词：铁路拱桥 钢管拱 二次竖向转体 施工组织及工艺 综合单价 分析 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]