| 公路下穿式立交引道U形封闭式路堑结构的设计 |
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| 引用本文： | 张劲松,吴连海.公路下穿式立交引道U形封闭式路堑结构的设计[J].铁道标准设计通讯,2005(1):41-43. |
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| 作者姓名： | 张劲松 吴连海 |
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| 作者单位： | 铁道第三勘察设计院地路处 天津300142
(张劲松)，铁道第三勘察设计院地路处 天津300142(吴连海) |
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| 摘 要： | 结合北同蒲改建铁路忻口站公路封闭式路堑的设计 ,介绍U形钢筋混凝土封闭式路堑设计的方法。封闭式路堑设计时将底板视作弹性地基梁进行内力和变形计算 ,采用共同变形理论 ,将地基假定为半无限弹性体 ,用弹性理论来计算地基的沉降 ,从而确定U形底板所受地基反力的大小及分布规律 ,以此确定底板和边墙的结构尺寸及配筋
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| 关 键 词： | 封闭式路堑 弹性地基梁 内力 变形缝 |
| 文章编号： | 1004-2954(2005)01-0041-02 |
| 修稿时间： | 2004年8月6日 |
A Structural Design for U-shape Closed Road Cutting of Undercrossing Approach of Highway |
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| Zhang Jinsong,Wu Lianhai The rd Railway Survey and Design Institute,Tianjin.A Structural Design for U-shape Closed Road Cutting of Undercrossing Approach of Highway[J].Railway Standard Design,2005(1):41-43. |
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| Authors: | Zhang Jinsong Wu Lianhai The rd Railway Survey and Design Institute Tianjin |
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| Institution: | Zhang Jinsong,Wu Lianhai The 3 rd Railway Survey and Design Institute,Tianjin 300142 |
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| Abstract: | An introduction is given to design method for U-shape reinforced concrete closed cutting. The bottom plate was taken as elastic subgrade beam for deformation computation. Common deformation theory was applied and subgrade was assumed a half-infinite elastic object. Elastic theory was applied to computation of subgrade settlement, thus determining the subgrade reaction force on bottom plate and its distribution, and finally resulting in dimensions and reinforcement of bottom plate and side wall. |
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| Keywords: | closed road cutting elastic subgrade beam internal force deformation joint |
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