| 独柱塔自锚式空间缆索悬索桥设计 |
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| 作者单位： | ;1.中铁第四勘察设计院集团有限公司 |
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| 摘 要： | 南京江心洲大桥是一座独柱塔自锚式空间缆索悬索桥,孔跨布置为(35+77+60+248+35)m,主塔采用独柱形式,主缆及吊索在边跨采用平行布置、在主跨采用空间布置,主梁采用钢混梁,设计难度大。通过技术研究,解决了桥梁总体布置、吊杆张拉、适应空间线形的主索鞍和散索套构造、钢混结合段构造等难题,保证了工程的顺利实施。
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| 关 键 词： | 自锚式悬索桥 空间缆索 钢混梁 吊杆张拉 |
Design of Single Tower Self-anchored Suspension Bridge with Spatial Cables |
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| Institution: | ,China Railway Siyuan Survey and Design Group Co.,Ltd. |
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| Abstract: | Jiangxinzhou Bridge in Nanjing is a single-tower self-anchored suspension bridge with spatial cables. Its span is( 35 +77 +60 +248 +35) m and the tower is of single column type. The main cables and hangers are arranged in parallel at the side span and arranged spatially at the main span. The main beam is steel-concrete beam. All these pose great difficulties to the design. Such problems are solved through technical researches as the overall arrangement of the bridge,the tension of the boom,the structure of the main cable saddle and loose cable sleeve,and the structure of the combination section of steel and concrete so as to ensure smooth implementation of the project. |
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| Keywords: | Self-anchored suspension bridge Spatial cables Steel-concrete beam Hanger tensioning |
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