（同济大学建筑设计研究院（集团）有限公司， 上海 200092）

［摘要］海口五源河文体中心体育场采用单侧屋盖结构，将大部分看台设在建筑西侧，西侧看台为钢筋混凝土框架-剪力墙结构，屋盖为超轻型的索膜结构。屋盖钢结构通过20个球铰支座与下部看台混凝土结构的外排斜柱连接，两端设置两片支座剪力墙，以承担由于采用不封闭的环索屋面而产生的巨大水平推力。通过总装模型分析验证看台简化模型的合理性，针对高烈度地震区域采取了消能减震措施，重点介绍了36m外排穿层斜柱稳定性分析，超长混凝土结构设计措施以及屋盖南、北端支座剪力墙抗水平力基础设计，并确定了主要构件的抗震性能目标。罕遇地震作用下的动力弹塑性时程分析结果表明，结构能够达到“大震不倒”的抗震设防目标。

［关键词］五源河文体中心； 抗震性能化设计； 消能减震； 超长结构； 动力弹塑性分析

中图分类号：TU318文献标识码：A文章编号：1002-848X(2018)09-0043-08

Stand structure design of Haikou Five-source River Sports Center Stadium

Jiang He

(Architectural Design ＆ Research Institute of Tongji University (Group) Co.,  Ltd.,  Shanghai 200092, China)

Abstract:Haikou Five-source River Sports Center Stadium adopts unilateral roof structure, most of the stands are on the west side of the building. The west side stands adopts the reinforced concrete frame-shear wall structure, and roof adopts the super-light cable membrane structure. Roof steel structure connects with the outer row of oblique columns, which are used to support the concrete structure of the lower stand, by using the 20 ball bearing supports, and two bearing shear walls are set on both ends to bear the huge horizontal thrust caused by use of non-closed ring roof. The rationality of the simplifying model of the grandstand was analyzed by the final assembly model, and the energy dissipation and shock absorption measures were taken for the high seismic intensity area. The stability analysis of the 36m-long outer row layer-crossing oblique columns, the design measures of the super-long concrete structure, anti-horizontal force foundation design of the shear wall of the northern and southern end bearings. The seismic performance goals of the main components were determined. The results of dynamic elastic-plastic time-history analysis under the action of rare earthquakes show that the structure can reach the seismic fortification goal of "not collapse under rare earthquake.

Keywords:Five-source River Sports Center; performance-based seismic design; energy dissipation and shock absorption; super-long structure; dynamic elastic-plastic analysis

作者简介：江河，本科，工程师，Email： moonjianghe@163.com。