| 斜腿刚构在山区公路陡坡桥梁中的应用 |
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| 引用本文： | 苏焕予,蒋团结.斜腿刚构在山区公路陡坡桥梁中的应用[J].西部交通科技,2006(5):109-111. |
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| 作者姓名： | 苏焕予 蒋团结 |
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| 作者单位： | 广西壮族自治区交通规划勘察设计研究院,广西,南宁,530011 |
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| 摘 要： | 我国的桥涵设计规范中明确规定:桥上纵坡宜≯4%,但在山区公路设计中,由于纵向推力巨大,普通的梁式桥难以适应大坡度纵坡的要求。文章以广西水任南宁高速公路工程为例,介绍在高纵坡条件下修建斜腿刚构桥梁的设计特点以及其良好的适应性,为解决山区高等级公路建设中因纵坡过陡,造成的纵向推力过大的不利影响等问题提供借鉴。
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| 关 键 词： | 斜腿刚构 陡坡桥 高速公路 设计 |
| 文章编号： | 1673-4874(2006)05-0109-03 |
| 修稿时间： | 2006年9月10日 |
Application of Slant Legged Rigid Frame in Steep Slope Bridge in Mountainous Highways |
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| SU Huan-yu,JIANG Tuan-jie.Application of Slant Legged Rigid Frame in Steep Slope Bridge in Mountainous Highways[J].Western China Communication Science & Technology,2006(5):109-111. |
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| Authors: | SU Huan-yu JIANG Tuan-jie |
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| Abstract: | The Chinese specification on bridge design c learly stipulates that the longitudinal slope on the bridge shall be less than 4 %. However,in the design of mountainous highway,it is found that normal girder bridge can not meet the requirement of large gradient longitudinal slope as the longitudinal pull force is so large. With Shuiren to Nanning expressway as an e xample,the article introduces the character of slant legged rigid frame bridge with high longitudinal slope and its sound adaptability. It will provide re ference for solving the negative impact of steep slope and large longitudinal pu ll force during highway construction in mountainous area. |
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| Keywords: | Slant Legged Rigid Frame Steep slope bridge Expressway Design |
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