大浪文化艺术中心结构设计与分析

Structure design and analysis of the Dalang Cultural and Art Center

大浪文化艺术中心项目地上8层,地下2层,文化与艺术多种功能空间叠加在一起。为满足建筑体型和使用功能要求,上部图书馆采用多筒体支承的大跨钢桁架结构,下部剧场和文化馆采用钢筋混凝土框架-剪力墙结构。重点介绍了上部图书馆的结构体系与结构设计重难点问题,对大跨度钢桁架的结构选型、多筒体的协同效应、支承筒体临空层的刚度突变、桁架变形引起的楼板受拉以及桁架与筒体的连接节点做了大量分析,提出了相应的设计加强措施,确保结构可以满足预定的性能目标要求。

The Dalang Cultural and Art Center is a complex structure include eight floors above ground and two floors below ground,the cultural and art functional spaces stacked together.In order to satisfy the special building shape and function requirements,the upper library adopts the large span steel truss structure supported by four tubes,and the reinforced concrete frame-shear wall is used in the lower theater and culture center.This paper mainly introduces the multi-tube supported structural system and several key or difficult issues of structural design,such as the optimization of the large span steel truss,synergistic effect analysis was conducted of multi-tubes,stiffness mutation of the tube layer without floor,slab tensile stress with the deformation of the truss,the joint of the truss and the shear wall in the tube were analyzed,ensure that the structure can meet the predetermined performance with the targeted measures.