(华建集团华东建筑设计研究总院， 上海 200002)

［摘要］广西文化艺术中心由三个单体组成，每个单体呈山的造型，由内部的混凝土结构和外围的拱形钢屋盖组成。三个钢屋盖通过外围的雨篷桁架连为一体，与混凝土结构设防震缝脱开。混凝土部分嵌固在基础底板，通过地下室连为一体，为大底盘多塔结构。拱形钢屋盖落在大底盘顶面的混凝土环梁上，混凝土部分与钢结构部分独立计算。介绍了基础设计及体系布置，详细阐述了大底盘多塔结构的设计方法及混凝土环梁的比选设计思路，考虑了上部钢结构与下部混凝土结构的相互影响，对钢屋盖关键节点采用有限元软件ANSYS进行计算分析，结果表明，结构设计合理可行。

［关键词］广西文化艺术中心； 剧院建筑； 大底盘多塔； 环梁； 空旷结构； 大跨度钢屋盖

中图分类号：TU973-3文献标识码：A文章编号：1002-848X(2020)18-0063-06

Structure design of Guangxi Culture and Art Center

LIN Xiaoyu

(Arcplus Group PLC East China Architectural Design & Research Institute, Shanghai 200002, China)

Abstract:Guangxi Culture and Art Center is composed of three single buildings, each of which is shaped like a mountain. It is composed of an internal concrete structure and an arched steel roof. The three steel roofs are connected by the outer canopy truss and are separated from the concrete structure with seismic joints. The concrete part is embedded in the foundation slab and connected with the basement into a whole, which is the multi tower structure with enlarged baseplate. The arched steel roof is connected to the concrete ring beam on the top of the enlarged baseplate, and the concrete part and steel structure part are calculated independently. The foundation design and structural system layout were introduced. The design method of multi tower with enlarged baseplate and the comparison and design idea of different concrete ring beam schemes were described in detail. Considering the interaction between the upper steel structure and the lower concrete structure, the finite element software ANSYS was used to calculate and analyze the key joints of the steel roof. The results show that the structural design is reasonable and feasible.

Keywords:Guangxi Culture and Art Center; theater architecture; multi tower with enlarged baseplate; ring beam; large-span spacious structure; large-span steel roof

作者简介：林晓宇，硕士，一级注册结构工程师，Email: lxy16369@ecadi.com。