(中国建筑西北设计研究院有限公司, 西安 710018)

摘要: 中国大运河博物馆是国家级特大型综合类博物馆,由博物馆、大运塔和今月桥三部分组成。 基于博物馆建筑功能需求,其局部存在柱网跨度大、层高大、楼层悬挑大、错层多、局部梁抬柱转换等特点,导致博物馆结构存在多项不规则;对于大运塔,其为塔形建筑,建筑体型逐层收进,且高宽比接近规范限值,结构主体存在平面尺度小、楼层层高大,檐口出挑深远且构造复杂等设计难点;今月桥造型独特,为空间曲面结构。 结合项目所处的自然环境、建筑特点、设计使用年限、装配式技术应用等因素,分析了各单体结构设计的难点和要点。 通过结构选型优化、关键部位构造处理、整体结构计算分析等,较好地实现了整体建筑预期效果。 结果表明本项目结构设计安全适用、技术先进、方便施工。

关键词: 中国大运河博物馆; 塔形建筑; 空间管桁架结构; 结构不规则; 体型收进

中图分类号:TU318,TU391 文献标志码:A 文章编号:1002-848X(2022)11-0022-07(11) :22-28.

DOI:10. 19701 / j. jzjg. XBY2226

Structural design of China Grand Canal Museum

JIA Junming, CHE Shunli, WANG Jing, TAO Beilin, LIU Feng

(China Northwest Architectural Design and Research Institute Co. , Ltd. , Xi’ an 710018, China)

Abstract:China Grand Canal Museum is a national super large comprehensive museum, which is composed of Museum, Dayun Tower and Jinyue Bridge. Based on the functional requirements of the museum building, the Museum has the characteristics of large column grid span, high floor, large floor overhang, many staggered floors, local beam lifting and column conversion, so the Museum structure has many irregular items. For Dayun Tower, it is a tower building and shrinking structure, which the height width ratio is close to the specification limit. The main structure of Dayun Tower has the following design difficulties: the plane size of the building is small, the floor is tall, the cornice is overhanging and the structure is complex. Jinyue Bridge is unique shape and is a space curved structure. Combined with the natural environment, architectural feature, the service life of design, the application of fabricated technology and other factors, the difficulties and key points of the structural design of the project were analyzed. Through structural selection optimization, key structural refinement, and the calculation and analysis of the overall structure, the expected effects of overall building have been well realized. The results show that the structural design is safe and applicable, the technology is advanced, and the construction is convenient.

Keywords:China Grand Canal Museum; tower building; space pipe truss structure; irregular structure; shrinking structure