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(中國建筑設(shè)計(jì)研究院有限公司， 北京 100044)
摘要: 冰雪小鎮(zhèn)文創(chuàng)商街北區(qū)地上部分平面尺寸東西長約 300m，南北長約 260m。 利用 8#樓和 9#樓之間的連橋設(shè)置兩道結(jié)構(gòu)縫，將 8#樓、9#樓和連橋分成三個獨(dú)立的單體。 主樓部分采用鋼框架+樹狀結(jié)構(gòu)，樹狀結(jié)構(gòu)分級節(jié)點(diǎn)和頂部節(jié)點(diǎn)均為鉸接節(jié)點(diǎn)。 提出了一種利用計(jì)算軟件判定結(jié)構(gòu)單元穩(wěn)定的方法，得到樹狀結(jié)構(gòu)單元形成穩(wěn)定體系的判定準(zhǔn)則，并以此結(jié)論為屋面構(gòu)件布置的原則，進(jìn)而建立整體屋面體系。 討論了樹狀柱單元連接節(jié)點(diǎn)剛接連接和鉸接連接各自的利弊，并給出相應(yīng)的選取準(zhǔn)則。 8#樓、9#樓之間的連橋屋蓋為懸索結(jié)構(gòu)，比選了四種懸索結(jié)構(gòu)方案。 結(jié)果表明，V 形桅桿懸索方案背索垂直設(shè)置即可平衡承重索索力，本項(xiàng)目連橋屋蓋的結(jié)構(gòu)體系最終選用此方案。 向橋面外側(cè)傾斜的桅桿柱可與落在橋面上的防風(fēng)索組成穩(wěn)定的三角形，從而確保玻璃屋頂在垂直于橋面方向有良好的側(cè)向剛度。
關(guān)鍵詞: 連橋；樹狀結(jié)構(gòu)；結(jié)構(gòu)穩(wěn)定性；懸索結(jié)構(gòu)；剛接連接；鉸接連接；防風(fēng)索
中圖分類號:TU398. 7 文獻(xiàn)標(biāo)志碼:A 文章編號: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，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，主要從事特種異形結(jié)構(gòu)設(shè)計(jì)，Email:dongyue729@ 163. com。
[引用本文] 董越. 冰雪小鎮(zhèn)文創(chuàng)商街北區(qū)地上結(jié)構(gòu)設(shè)計(jì)與研究[J]. 建筑結(jié)構(gòu)，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.
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