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1.工程概况及焊接特点(1)工程概况珠海歌剧院工程主要由大剧场、小剧场以及中部大天窗三部分组成。大、小剧场主体结构为框架——剪力墙结构,两组贝壳形体为空间钢桁架结构。每组贝壳形体由两片对称的贝壳状钢架通过中部联系桁架连为一体。以大剧场为例,单片贝壳状钢架高度为60m,宽约80m,由径向桁架、环向系杆组成,钢架外表面呈平滑曲面。其中径向桁架为平面弧形桁架,由箱形构件
1. Project Overview and welding characteristics (1) Project Overview Zhuhai Opera House project mainly by the theater, a small theater and central skylight composed of three parts. The main structure of large and small theater is frame-shear wall structure, and two groups of shells are space steel truss structure. Each shell of the body consists of two symmetrical shell-like steel frame through the central contact truss as a whole. Take the large theater as an example, the single piece shell-shaped steel frame has a height of 60m and a width of 80m and is composed of a radial truss and a circumferential tie rod. The outer surface of the steel frame is smooth and curved. Among them, the radial truss is a flat arcuate truss, which is made of a box-shaped member