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深圳证券交易所营运中心工程裙楼抬升至距地面36m,为高空大跨度空间巨型悬挑钢桁架结构,钢桁架悬挑部分下弦共46个节点,采用在节点底部搭设临时支撑胎架安装悬挑结构。胎架为格构式钢管结构,设计为单片式标准件,现场组装成6m或4m标准节,竖向各标准节之间采用法兰螺栓连接,胎架间设置2层连系桁架,并在胎架端跨设置钢拉杆,保证胎架局部和整体的稳固。标准化组装胎架实现了大型支撑措施的可重复利用,且拼装简便,保管方便,大大降低了施工成本。
The podium of the Shenzhen Stock Exchange Operation Center Project is raised to a height of 36m from the ground, which is a huge, cantilevered steel truss structure with large-span, long-span space. The lower part of the cantilevered part of the steel truss has a total of 46 nodes with erected temporary shelves at the bottom of the node structure. Tire frame lattice steel pipe structure, designed as a single piece of standard parts assembled into 6m or 4m standard section, the vertical section between the flange bolts, between the two sets of tire frame truss connection, and Set the steel rod at the end of the tire rack to ensure the local and overall stability of the tire rack. Standardized assembly of tire rack to achieve a large support measures can be reused, and easy assembly, storage convenience, greatly reducing construction costs.