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中小跨径梁拱组合体系桥的设计应用
引用本文:曹明旭. 中小跨径梁拱组合体系桥的设计应用[J]. 现代交通技术, 2008, 5(2): 29-31
作者姓名:曹明旭
作者单位:江苏省交通科学研究院,江苏南京,210017
摘    要:
梁拱组合体系桥具有造型优美、集梁桥与拱桥之长,对地形地质条件适应性好等优点,上世纪90年代开始在大跨径桥梁中进行了应用实践,近年来在一些对桥型有特殊要求的中小跨径桥梁中,该桥型也逐步有了应用。对3座中小跨径梁拱组合体系桥的设计要点进行介绍,建议对30m以下小跨径桥主梁可采用空心板截面,30m以上中等跨径桥主梁可采用箱形截面,并应注重对结构截面尺寸及主要材料指标进行优化。

关 键 词:桥梁工程  中小跨径桥  梁拱组合体系桥  结构设计
文章编号:1672-9889(2008)02-0029-03
修稿时间:2008-01-17

Design Practice of Middle-small Span Beam-arch Combination Bridge
Cao Mingxu. Design Practice of Middle-small Span Beam-arch Combination Bridge[J]. Modern Transportation Technology, 2008, 5(2): 29-31
Authors:Cao Mingxu
Affiliation:Cao Mingxu (Jiangsu Transportation Research Institute, Nanjing 210017, China)
Abstract:
The beam-arch combination bridge have been used in large-span bridge at 1990's, because of its graceful model, concentrating strong points of beam and arch, good suitabilities to topography and geology. In recent years, it has gradually been used in middle-small span bridge for its unique model. This paper will present the main design points of the three middle-small span beam-arch combination bridges, which could be referred in similar designs. This paper recommens voided slab section for small span bridge which span below 30 meters, and box section for middle-span bridge which span over 30 meters, and the optimization of section size and material index should be pay attention to.
Keywords:bridge engineering  middle-small span  beam-arch combination bridge  structure design
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