- 摘 要
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（1 北京市建筑設計研究院有限公司， 北京 100045； 2 萬達文化旅游規(guī)劃研究院有限公司， 北京 100022； 3 北京維拓時代建筑設計有限公司， 北京 100025）
［摘要］哈爾濱萬達滑雪場平面尺寸長487m，跨度從150m漸變到90m，建成后將成為世界上最大的室內(nèi)滑雪場。滑雪場東側(cè)鋼結(jié)構(gòu)為重載（恒荷載11-5kN/m2）、大跨（最大跨度123m）、高層（最高點114-5m）結(jié)構(gòu)，超限判定為特殊類型的高層建筑，且嚴重扭轉(zhuǎn)不規(guī)則，是本項目結(jié)構(gòu)設計的重點和難點，最終采用了巨型框架的結(jié)構(gòu)體系。滑雪場中西部鋼結(jié)構(gòu)為橫向桁架、縱向框架的結(jié)構(gòu)體系，介紹了該結(jié)構(gòu)體系在設計過程中考慮的幾個主要問題及采取的措施，通過調(diào)整構(gòu)件的布置、采用拓撲優(yōu)化的辦法解決了支承體系的問題；采用非線性時程輔助分析，通過提高構(gòu)件的穩(wěn)定性及主框架剛度的辦法，提高了結(jié)構(gòu)抵抗連續(xù)倒塌的能力。
［關鍵詞］滑雪場； 重載； 大跨； 高層； 扭轉(zhuǎn)不規(guī)則； 抗連續(xù)倒塌設計
中圖分類號：TU973+.13文獻標識碼：A文章編號：1002-848X(2017)18-0032-05
Optimization design of steel structure scheme for Harbin Wanda ski dome
Zhang Lin1, Zhu Zhongyi1, Wang Zhe1, Yuan Linhua1, Wang Yi1, Wu Yaohui2, Zhu Ming2, Li Hongqiu3
(1 Beijing Institute of Architectural Design, Beijing 100045， China; 2 Wanda Cultural Tourism Planning & Research Institute, Beijing 100022， China; 3 Beijing Victory Star Architectural & Civil Engineering Design Ltd., Beijing 100025， China)
Abstract:The plane arrangement of Harbin Wanda ski area is 487 meters long, 150 meters to 90 meters span. It will be the biggest indoor ski dome in the world when finished. The steel structure of east part is a special type of high-rise building with heavy load (dead load is 11-5kN/m2), long-span (the longest span is 123m) and high-rise (the highest point is 114-5m), and significant torsional irregularity, which is the key and difficult point of this project. Finally hollow mega-frame structure is used for the east part. The structure system of west and middle part is lateral truss and lengthways frame. A serious of key issues and the correspondent solutions considered during the design process of this structural system were introduced. The supporting system problem was solved by structural element re-arrangement and topological optimization. The structural ability to prevent progressive collapse was improved by increasing the stability of single element and the stiffness of the primary frame, together with adoption of non-linear time history analysis method.
Keywords:ski dome; heavy load; long span; high rise; torsional irregularity; anti progressive collapse design
作者簡介：張琳，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：zhanglin1@biad.com.cn。
