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萧山科创中心2号和3号楼之间通过钢连廊进行高空连接。采用钢桁-框架结构体系,通过底层的钢桁架结构支承上部的钢框架结构。桁架支承系统包括大跨度区域的单向主桁架和大跨度大悬挑区域的双向桁架,桁架两端通过盆式橡胶支座支撑于裙楼柱上。楼面支承系统包括支承钢梁及其上的压型组合楼板。主要研究了该连廊的结构体系、特点及难点、构件性能目标、桁架节点设计、整体指标控制、弹性时程分析以及抗震构造措施。结果表明:钢桁-框架结构体系可有效实现复杂建筑外立面引起的大跨度、大悬挑,整体指标及桁架节点均符合设计要求。
Xiaoshan Branch Center No. 2 and 3 through the steel corridor between the height of the connection. The steel truss - frame structure system, through the bottom of the steel truss structure supporting the upper part of the steel frame structure. The truss support system comprises a one-way main truss with a large span area and a two-way truss with a large span and a large cantilever area. Both ends of the truss are supported on the pillars by pot rubber bearings. The floor support system consists of a supporting steel beam and a pressure-type composite floor above it. Mainly studied the structure of the corridor system, features and difficulties, component performance objectives, truss node design, the overall index control, elastic analysis of time history and seismic structure measures. The results show that the steel truss-frame system can effectively achieve the large-span and large cantilever caused by the complex building facade, and the overall indexes and truss nodes meet the design requirements.