side frame top chord 侧架上弦杆
polygonal top-chord roof truss 多边形屋架
broken top-chord 折线形上弦
curved top chord 曲线形上弦杆
side top chord 上侧梁
top chord joint 上弦接头
camel-back top chord 驼背上弦杆
polygonal top-chord 折线形上弦杆
The top chord components of beam string structure are fabricated in factory and assembled on site.
该张弦梁上弦构件在工厂分段制作,现场拼装。
Concrete was poured in separately from mid-span of arch slab to the supports and then from the supports to the top chord of the arch chord so as to balance the pouring load.
分两组由拱板下弦跨中同时向拱板支座浇筑混凝土,然后从拱板支座连续沿拱板上弦向中间合龙,使浇筑荷载相对均衡。
Then the structural accident of total section drive-through type crack is caused in arch frame top chord, which is induced by hoisting and detection using pulley arbitrarily.
铜绿山矿某三铰拱屋架单轨吊梁结构体系,因技术改造增加设备简体重量,随意用滑轮组起吊检修,导致拱架上弦全截面贯通式开裂的结构事故。
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