| 金婺大桥换索方案研究 |
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| 引用本文： | 周立.金婺大桥换索方案研究[J].钢结构,2011,26(1):55-59. |
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| 作者姓名： | 周立 |
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| 作者单位： | 中铁上海设计院集团有限公司,上海,200070 |
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| 摘 要： | 以金婺大桥边跨4号索换索方案为工程背景,将理论计算与实测相结合,研究单侧卸索(加支撑)、单侧卸索(不加支撑)、双侧卸索(加支撑)和双侧卸索(不加支撑)等卸索方案对斜拉索索力、主梁和桥塔的弯矩、位移及应力的影响.分析表明:单侧卸索会增加桥塔的弯矩,不加支撑也会增大主梁的弯矩.建议采用在边跨主梁和中跨主梁与4号索对应的横隔...
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| 关 键 词： | 金婺大桥 换索方案 索力 有限元 |
THE SCHEME STUDY OF CABLE REPLACEMENT OF JINWU BRIDGE |
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| Zhou Li.THE SCHEME STUDY OF CABLE REPLACEMENT OF JINWU BRIDGE[J].Steel Construction,2011,26(1):55-59. |
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| Authors: | Zhou Li |
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| Affiliation: | Zhou Li(China Railway Shanghai Design Institute Group Co.Ltd,Shanghai 200070,China) |
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| Abstract: | Based on cable replacement of number 4cable of Jinwu bridge,theory calculation and measured data were combined.Some schemes were studied including unilateral cable replacement without sustainment,unilateral cable replacement with sustainment,symmetrical cable replacement with sustainment,symmetrical cable replacement without sustainment.How different schemes effect the cable force,the bend moment,displacement and stress of main beam and bridge tower were researched.The study showed bend moment of tower incr... |
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| Keywords: | bridge of Jinwu cable replacement scheme cable force finite element |
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