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深圳平安金融中心整体结构为“巨型框架-核心筒-外伸臂”抗侧力体系,其中外框架由巨型柱、带状桁架、巨型斜撑、V形支撑及楼层钢梁构成受力结构。铸钢节点设在V形支撑交点处,对结构稳定性起到至关重要的作用。铸钢件结构复杂,自身质量最大达150 t,需分段吊装,焊接厚度更是史上空前,局部达到300 mm,堪称“国内第一厚焊”。近日完成的铸钢件焊接纪录在约50 m的高空进行,深圳夏季多变的天气及铸钢件本身组织不均匀等诸多因素给现场施焊带来巨大挑战。为避免重复多次加热、冷
The overall structure of Shenzhen Ping An Financial Center is a “giant frame - core tube - outrigger” anti-side force system, in which the outer frame is composed of giant columns, ribbon truss, giant bracing, V-shaped support and steel beams on the floor structure. Cast steel nodes located at the intersection of V-shaped support, the structural stability plays a crucial role. Cast steel structure is complex, its own quality up to 150 t, to be hoisted in sections, the welding thickness is unprecedented in history, locally reached 300 mm, called the “first domestic thick welding.” Recently completed welding record of steel castings at about 50 m altitude, Shenzhen, changing weather in summer and cast steel itself is not uniform and many other factors to the site welding posed tremendous challenges. To avoid repeated multiple heating, cold