摘要
长沙梅溪湖城市岛项目包含一层服务中心、双螺旋观景建筑物、人行天桥。其中,宽7m、长1000m的螺旋环道通过悬挑钢板连接件与32颗斜柱偏心连接成一双螺旋结构,结构体系新颖;800m长人行天桥,桥墩为变截面混凝土斜柱结构,桥跨结构为倒三角形立体桁架和倒三角形立体桁架+单榀索拱结构。基于结构特点,对双螺旋结构规避第一周期扭转的措施、人行走舒适度、钢结构节点等进行详细分析,对人行天桥支座设置、拱结构稳定验算、异型截面柱设计进行了详细分析,并采取了相应加强措施,确保了结构安全、合理。
The Changsha Meixi Lake Urban Island Project includes a one-story service center,a double helix viewing building,and a walking bridge.Among them,a helical walkway with a width of 7 m and a length of 1000 m is eccentrically connected with 32 inclined columns to form a double spiral structure through cantilevered steel plate connectors.The structural system is novel.The 800 m-long walking bridge,the pier is a variable-section concrete inclined column structure,and the bridge span structure is an inverted triangular three-dimensional truss and an inverted triangular three-dimensional truss and single cable arch structure.Based on the structural characteristics,a detailed analysis of the double helix structure’s measures to avoid the first cycle of torsion,walking comfort,steel structure joints,etc.,and detailed analysis of walking bridge support settings,arch structure stability check calculations,and special-shaped cross-section column design.Corresponding strengthening measures have been taken to ensure that the structure is safe and reasonable.
作者
刘云浪
李建伟
傅学怡
张明
王宁
Liu Yun-lang;Li Jian-wei;Fu Xue-yi;Zhang Ming;Wang Ning(CCDI International(Shenzhen)Design Consultants Co.,Ltd.,Shenzhen 518048)
出处
《建筑科学》
CSCD
北大核心
2020年第S02期85-90,共6页
Building Science
关键词
扭转
人行舒适度
人行天桥支座
拱结构稳定
异型截面柱
Torsion
walking comfort
walking bridge support
arch structure stability
special-shaped cross-section column
