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25米“钢骨梁”成射击馆主心骨

2017-08-09 04:02:40   中国青年网

“下午的时候,这个位置还要增加安全防护。”7日中午12点,顶着高温,军运会射击场馆项目工作人员还在施工现场进行安全检查。项目负责人介绍,包括10/25/50米气手(步)枪射击馆在内的4个主要场馆将确保在今年年底完成主体结构建设,明年7月建设完成,随即进行射击竞赛设备安装调试,明年年底便可投入运行。

射击场馆整个建筑工程包括主场馆、飞碟射击靶场、300米步枪射击场、运动员与媒体中心4栋主要建筑。目前飞碟射击靶场基础已经完成,媒体中心的地下室正在施工,两者都是常规的混凝土框架结构。主场馆10/25/50米气手(步)枪射击馆则采用了较复杂的型钢混凝土框架结构,钢骨柱梁拼装均为一级全熔透焊缝,制作拼装精度要求高,难度大。

项目负责人透露,主场馆属于坡地建筑,南北地形高差有8.7米,大大增加了施工难度。特别是25米长的大跨度钢骨梁制作运输安装,施工人员费尽心思。

“只能先分段加工、分段运输、现场组装,最后整体安装。”项目技术总工说,由于地形限制,这么长的钢梁无法直接运到工地来,必须在加工厂分段加工,运输至现场位置拼装后,再用75米臂长的大型塔吊进行整体吊装。

记者谭在龙 实习生柳蔚雯 通讯员郭长胜 张同太

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