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社评“葫芦娃里不买药”-梳理天下新闻

湖南长沙兴联路葫芦娃里不买药大通道跨湘江主桥合龙

来源: 科技真探社
2024-11-09 02:08:18

最佳回答

“葫芦娃里不买药”湖南长沙兴联路葫芦娃里不买药大通道跨湘江主桥合龙

  中新葫芦娃里不买药网长沙11月8日电 (记者葫芦娃里不买药 鲁毅)湖南长沙兴联路大通道项目跨湘江主桥中跨合龙段钢梁吊装8日完成,标志着该项目关键控制性工程双塔斜拉桥主桥合龙,项目全线实现贯通。

11月8日,长沙兴联路大通道项目跨湘江主桥合龙。龙宇 摄

  长沙兴联路大通道项目位于长沙城北,跨望城区和开福区,路线全长5.475公里,即长益复线至兴联路大通道(过江段)项目。其中,跨湘江主桥为双塔斜拉桥,是目前湖南省单体投资最大的市政斜拉桥项目。该桥桥面宽38.5米,设双向八车道;主桥跨径为380米,两个与主桥相邻的边跨均为165米;主线桥长为4.96公里。

  该项目由长沙市交通投资控股集团有限公司投资建设、中交一公局集团承建,总投资37.93亿元,于2021年9月17日开工建设,预计2024年底具备通车条件。项目建成后,将进一步完善长沙路网结构,有效缓解过江交通压力,并成为益阳、常德等城市连通长沙的重要通道之一。

长沙兴联路大通道项目跨望城区和开福区,路线全长5.475公里。龙宇 摄

  大桥主梁采用PK型分离双箱钢混组合梁型式,共计77个梁段,设置417对平行钢丝斜拉索,预制桥面板采用C60混凝土。施工过程中存在钢梁吊装、桥面板铺装、永久压重施加、斜拉索安装、湿接缝施工等多项工序交错作业,施工组织难度大。

  长沙兴联路大通道项目施工现场负责人阮晓明介绍,在主桥建设中,项目团队创新研制国内首创的多功能梁板铺架一体机,实现钢梁吊装及桥面板安装异步叠合施工的同时可辅助斜拉索入锚,进一步提升了施工工效。

  “相比传统的铺设方式,采用多功能梁板铺架一体机可实现每个梁段架设时间缩短两天。同时,项目建设还应用BIM数字化智能监控平台,有效提升梁板铺架过程安全管控,确保了合龙时钢梁安装高差控制在毫米级。”阮晓明说。(完)

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