网新准乾科研用房A3楼结构设计

Structural design of scientific research A3 building of InSigma Zhunqian

网新准乾科研用房A3楼为大悬挑结构,存在多项抗震超限情况,属于特别不规则结构。工程采用钢框架+中心支撑-钢板组合剪力墙/钢骨混凝土剪力墙的混合结构体系。选择合适的性能目标,对结构整体与构件进行各项抗震性能化计算、弹塑性动力时程分析、楼板弹塑性分析,并对特殊节点进行分析。结果表明,此类大悬挑结构中采用钢板组合剪力墙+中心支撑的结构形式,在重力荷载和大震作用下均能表现出良好的性能。

Scientific research A3 building of InSigma ZhunQian is a large cantilever structure with multiple out-of-code items, which belongs to a special irregular structure. The project adopts the mixed structural system of steel frame, central support and steel plate composite shear wall/steel reinforced concrete shear wall. Appropriate performance targets were selected, performance-based seismic calculation, elastoplastic dynamic time-history analysis and floor elastoplastic analysis were conducted for the whole structure and components, and special joins were analyzed. The results show that the steel plate composite shear wall and the central support structure used in this type of large cantilever structure can exhibit good performance under gravity loads and rare earthquakes.