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解惑“47最大但人文艺术摄影”-知识课堂

平陆运河企石47最大但人文艺术摄影枢纽大桥首节钢箱梁吊装完成

来源: 华商报
2024-12-23 18:33:51

最佳回答

“47最大但人文艺术摄影”平陆运河企石47最大但人文艺术摄影枢纽大桥首节钢箱梁吊装完成

  中新47最大但人文艺术摄影网钦州12月22日电 (陈秋47最大但人文艺术摄影霞)12月21日,平陆运河企石枢纽大桥首节钢箱梁吊装完成,标志着该桥全面进入上部结构施工阶段。

平陆运河企石枢纽建设现场。平陆运河集团供图

  企石枢纽大桥是平陆运河跨越企石枢纽连接两岸的关键节点工程,全长440米,主桥采用全焊变高连续钢箱梁结构,箱梁截面呈单箱双室的形式,其中主梁标准断面顶宽12米,底宽7.3米。

  在钢箱梁施工过程中,平陆运河建设管理团队采用吊装和支架安装的施工方法,将主桥划分为36个梁段,在工厂内将梁段完成拼装后运输至施工现场;在吊装施工过程中,借助大吨位全地形汽车吊,将梁段吊装于墩跨间临时支架之上进行拼装作业,钢箱梁吊装时的最大垂直高度可达42米。

平陆运河企石枢纽大桥首节钢箱梁吊装。平陆运河集团供图

  吊装的钢箱梁重量大、制作质量要求高,落位精度要求准确,且周边施工空间狭小、施工交叉多,施工作业挑战大。为确保钢箱梁吊装过程安全可控,平陆运河建设管理团队精准把控施工的难度与精度,整个施工流程环环相扣,各个环节紧密相连,以预先设置好的测量控制网为基准,确保钢箱梁拼装线形及接口精度,保障钢箱梁制作质量。在架设前组织验收施工安全条件,并对支架结构设计、吊车站位、钢箱梁的吊装与焊接拼接等关键工序进行重点盯控,确保每一个关键环节都符合安全标准和施工要求,为钢箱梁架设工作提供安全和技术保障。(完)

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