(中国建筑设计研究院有限公司， 北京 100044)

摘要: 冰雪小镇文创商街北区地上部分平面尺寸东西长约 300m，南北长约 260m。 利用 8#楼和 9#楼之间的连桥设置两道结构缝，将 8#楼、9#楼和连桥分成三个独立的单体。 主楼部分采用钢框架+树状结构，树状结构分级节点和顶部节点均为铰接节点。 提出了一种利用计算软件判定结构单元稳定的方法，得到树状结构单元形成稳定体系的判定准则，并以此结论为屋面构件布置的原则，进而建立整体屋面体系。 讨论了树状柱单元连接节点刚接连接和铰接连接各自的利弊，并给出相应的选取准则。 8#楼、9#楼之间的连桥屋盖为悬索结构，比选了四种悬索结构方案。 结果表明，V 形桅杆悬索方案背索垂直设置即可平衡承重索索力，本项目连桥屋盖的结构体系最终选用此方案。 向桥面外侧倾斜的桅杆柱可与落在桥面上的防风索组成稳定的三角形，从而确保玻璃屋顶在垂直于桥面方向有良好的侧向刚度。

关键词: 连桥；树状结构；结构稳定性；悬索结构；刚接连接；铰接连接；防风索

中图分类号:TU398. 7 文献标志码:A 文章编号:1002￣848X(2022)01￣0036￣05

DOI:10. 19701 / j. jzjg. 20200148

Design and research on the above￣ground structure of the north district ofcultural creative commercial street in Ice Snow Town

DONG Yue

(China Architecture Design Group， Beijing 100044， China)

Abstract: The above￣ground part of the north district of cultural creative commercial street in Ice Snow Town is about 300mlong from east to west and 260m long from north to south. The connecting bridge between the 8# building and the 9#building was used to set up two structural joints to divide the 8# building， 9# building and the connecting bridge into threeindependent units. The main building part adopts a steel frame + tree￣shaped structure， and the hierarchical nodes and topnodes of the tree￣shaped structure are hinged nodes. A method for judging the stability of structural elements by usingcalculation software was proposed and the judgment criteria for the formation of a stable system by tree￣shaped structuralelements were obtained， and this conclusion was used as the principle of roofing component layout， and then the overallroofing system was established. The advantages and disadvantages of rigid connection and hinge connection of tree￣shapedcolumn element connection nodes were discussed， and corresponding selection criteria were given. The roof of theconnecting bridge between the 8# and 9# buildings was a suspension cable structure， and four suspension cable structureschemes were compared and selected. The results show that the V￣shaped mast suspension cable scheme can balance theload￣bearing cable force by setting the back cables vertically. This scheme is finally selected for the structural system of theconnecting bridge roof of this project. The mast column inclined to the outside of the bridge deck can form a stable trianglewith the windproof cable that falls on the bridge deck， so as to ensure that the glass roof has good lateral rigidity in thedirection perpendicular to the bridge deck.

Keywords:connecting bridge；tree￣shaped structure；structural stability；suspension cable structure；rigid connection；hinged connection；windproof cable

第一作者:董越，硕士，高级工程师，一级注册结构工程师，主要从事特种异形结构设计，Email:dongyue729@ 163. com。

[引用本文] 董越. 冰雪小镇文创商街北区地上结构设计与研究[J]. 建筑结构，2022，52(1):36￣40. DONG Yue.Design and research on the above￣ground structure of the north district of cultural creative commercial street in Ice SnowTown[J]. Building Structure，2022，52(1):36￣40.