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针对双曲线椭圆旋转面倒置单层网壳结构的独特造型以及箱形杆件与箱形相贯节点构造带来的施工难题,提出了把整个网壳结构的吊装按照一个箱形相贯节点与三根箱形杆件作为一个标准吊装单元体进行的地面拼装与高空吊装的方法;提出了在箱形杆件与箱形相贯节点端部焊接L形临时连接件并用螺栓进行临时连接固定的方法;提出了将棱镜装置放于箱形相贯节点牛腿端面中心点进行的测量定位方法;提出了相互铰接连接的带撑杆夹具并与脚手架扣件连接进行支撑固定的方法;提出了对已完成临时固定的至少相隔三层的底层结构进行检查校正的优化顺序;提出对已完成校正并点焊固定的至少相隔三层的底层结构进行正式焊接的优化顺序,采用统一对称、分区进行,单杆双焊、双杆单焊的焊接顺序与在间隙中塞垫合适钢板的方法控制焊接变形.工程中的成功实践表明,提出的施工成套技术实用、经济、安全、高效.
In view of the unique shape of the inverted single-layer reticulated shell with oval rotating surface and the construction problems caused by the construction of the box-shaped bar and the box-shaped intersecting node, the author put forward that lifting the whole reticulated shell according to a box-shaped intersecting node and three boxes A method of assembling the ground and hoisting a high altitude by a standard hoisting unit body; a method of welding the L-shaped temporary connecting member at the end of a box-shaped rod and a box-shaped intersecting node and carrying out temporary connection and fixing by bolts is proposed; The prism device is placed at the center point of the box-shaped intersecting point of the cow leg for measuring and locating methods; a method of connecting and supporting the knot with the brace fastener and the scaffold fastener is proposed; At least three layers separated from the bottom of the structure to check and optimize the optimization order; proposed correction and fixed spot welding at least separated by three layers of the bottom structure of the formal welding sequence optimization using uniform symmetry, zoning, single pole double welding, Double-rod single-welding sequence and the pad in the gap in the appropriate method of welding plate deformation control welding. Engineering in the successful practice of the table Ming, put forward the construction of complete sets of technology is practical, economical, safe and efficient.