铁道标准设计2017，Vol.61Issue(5)：91-95,5.DOI:10.13238/j.issn.1004-2954.2017.05.020
钢管混凝土拱桥新规范中的设计新理念
New Design Concepts in the New Code of Concrete-filled Steel Tube Arch Bridge
龚俊虎1
作者信息
- 1. 中铁第四勘察设计院集团有限公司,武汉 430063
- 折叠
摘要
Abstract
The latest release of Specifications for Design of Highway Concrete-filled Steel Tubular Arch Bridges(JTG/T D65-06-2015)and Technical Code for Concrete-filled Steel Tube Arch Bridge(GB 50923-2013)offers some new concepts in designing concrete-filled steel tube arch bridges, which mainly include:(1)the steel tube of concrete-filled steel tube arch bridge should give priority to the longitudinally-welded pipe;(2)the shrinkage-compensating and self-compacting concrete is recommended for the tube of concrete-filled steel tube arch bridge;(3)the concrete between web plates of concrete-filled steel tube arch bridge with dumbbell section should not be included in the stress of main arch;(4)welding butt joints should be adopted in segments of main arch of concrete-filled steel tube arch bridges;(5)the method of replacing curve by straight line should be employed to form the main arch linear of concrete-filled steel tube arch bridge;(6)suspension bridge deck system of half-through and through arch bridges should have the overall robustness and stiffening girders must be set between beams to form a continuous structure system.关键词
钢管混凝土/拱桥/设计新理念/哑铃形截面/直缝焊接管/自密实补偿收缩混凝土Key words
Concrete-filled steel tube/Arch bridge/New design concept/Dumbbell section/Longitudinally-welded pip/Shrinkage-compensating and self-compacting concrete分类
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龚俊虎..钢管混凝土拱桥新规范中的设计新理念[J].铁道标准设计,2017,61(5):91-95,5.
