| 单塔空间索自锚式悬索天桥设计与施工控制 |
| |
| 引用本文： | 康省桢,许世展.单塔空间索自锚式悬索天桥设计与施工控制[J].桥梁建设,2011(3). |
| |
| 作者姓名： | 康省桢 许世展 |
| |
| 作者单位： | 1. 郑州大学,河南郑州450001;河南交通投资集团有限公司,河南郑州450002
2. 河南交通投资集团有限公司,河南郑州,450002 |
| |
| 摘 要： | 桐柏停车区天桥采用(18+38+66+18)m四跨单塔自锚式悬索桥方案。桥塔为钢筋混凝土拱形,加劲梁采用钢筋混凝土肋板式结构,主缆采用预制平行丝股,吊索采用空间布置,鞍座采用铸焊结构。采用MIDAS Civil程序建立有限元模型,进行成桥结构分析,结果表明该桥结构刚度满足规范要求。该桥采用先梁后缆法施工,采用倒拆法进行施工计算,在施工过程模拟计算后得到吊索下料长度。吊索分5次张拉到位完成结构体系转换,以吊索无应力长度为控制指标,控制吊索张拉力和加劲梁变形。监控结果表明,该桥成桥线形较好,主缆和吊索受力均匀。
|
| 关 键 词： | 自锚式悬索桥 桥塔 结构计算 桥梁设计 施工监控 |
Design and Construction Control of a Self-Anchored Suspension Overpass with a Single Arch Shape Tower and Spatial Cables |
| |
| KANG Sheng-zhen,XU Shi-zhan.Design and Construction Control of a Self-Anchored Suspension Overpass with a Single Arch Shape Tower and Spatial Cables[J].Bridge Construction,2011(3). |
| |
| Authors: | KANG Sheng-zhen XU Shi-zhan |
| |
| Institution: | KANG Sheng-zhen1,2,XU Shi-zhan2(1.Zhengzhou University,Zhengzhou 450001,China,2.Henan TransportInvestment Group Co.,Ltd.,Zhengzhou 450002,China) |
| |
| Abstract: | The Tongbai Parking Area Overpass is a 4-span self-anchored suspension bridge with a single tower and with span arrangement(18+38+66+18) m.The tower of the bridge is the reinforced concrete(RC) arch shape tower and the stiffening girder is the RC ribbed slab structure.The main cables are made up of prefabricated parallel wire strands,the suspenders are arranged in a spatial way and the cable saddles are the cast and welded structures.The program MIDAS Civil was used to set up the finite element model and to... |
| |
| Keywords: | self-anchored suspension bridge tower structural calculation bridge design construction monitoring and control |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
