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范重，胡純煬，李麗，欒海強(qiáng)，彭翼，劉先明

（中國建筑設(shè)計(jì)研究院， 北京 100044）

 

［摘要］在鄂爾多斯東勝體育場設(shè)計(jì)中，提出開合屋蓋系統(tǒng)的預(yù)期性能特征和設(shè)計(jì)標(biāo)準(zhǔn)，包括機(jī)械裝置和控制系統(tǒng)的性能標(biāo)準(zhǔn)，用于指導(dǎo)驅(qū)動(dòng)控制元件的設(shè)計(jì)和開發(fā)，并確保屋蓋在整個(gè)使用年限中的適用性。鄂爾多斯東勝體育場開合屋蓋由兩個(gè)單元塊組成，每片開合屋蓋沿跨度方向共設(shè)置4道主桁架，采用三角形截面空間桁架，主桁架的平面布置與固定屋蓋的主桁架完全對(duì)應(yīng)。沿開合屋蓋縱向布置兩道桁架，增強(qiáng)主桁架的側(cè)向穩(wěn)定性，并為尾部的弧形造型提供支撐條件。每片開合屋蓋兩側(cè)各有7個(gè)臺(tái)車安裝于邊桁架下方，開合屋蓋通過臺(tái)車、軌道等部件將開合屋蓋的風(fēng)荷載、溫度和地震作用等順利地傳遞到固定屋蓋上。開合屋蓋的結(jié)構(gòu)形式與屋蓋開啟方式緊密結(jié)合，具有較大的變形適應(yīng)能力。嚴(yán)格控制開合屋蓋的結(jié)構(gòu)自重，選擇膜材作為圍護(hù)結(jié)構(gòu)，減小驅(qū)動(dòng)動(dòng)力需求。對(duì)屋蓋開啟過程中結(jié)構(gòu)的變形特點(diǎn)與臺(tái)車反力的變化情況進(jìn)行了詳細(xì)分析，并對(duì)開合屋蓋的動(dòng)力特性與地震響應(yīng)進(jìn)行了全面計(jì)算。

［關(guān)鍵詞］東勝體育場；開合屋蓋；性能指標(biāo)；開合狀態(tài)；軌道變形；動(dòng)力特性；地震響應(yīng)

中圖分類號(hào)：TU318      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)09-0019-10

 

Structural design on retractable roof of Ordos Dongsheng Stadium

Fan Zhong, Hu Chunyang, Li Li, Luan Haiqiang, Peng Yi, Liu Xianming

（China Architectural Design & Research Group, Beijing 100044, China）

 

Abstract: In order to conduct the design of roof drive control component and ensure the applicability in its all service life, expected performance characteristics and design standards of the mechanical device and drive control system were put forward in the design of Ordos Dongsheng Stadium.The retractable roof of Ordos Dongsheng Stadium consists of two independent parts that are made of four main triangular trusses along the span direction, and the four main trusses are exactly correspondent with the main trusses of fixed roof. In order to strengthen lateral stability of the main trusses of retractable roof and provide support for the curved tail truss, two longitudinal main trusses in the retractable roof were designed. Each part of the retractable roof has 7 vehicles on each side under the longitudinal side truss, and the wind loads, seismic loads and temperature loads are effectively transferred from the retractable roof to the fixed roof by the vehicles and track truss etc. Structural form and opening mode of the retractable roof   are perfectly matched and own strong ability to adapt to the deformation. For reducing the power demand of drive system, the self weight of the retractable roof was controlled strictly and membrane material was selected as palisade structure for the retractable roof. The deformation characters of the retractable roof and counterforce of the vehicles in the moving process as well as dynamic characteristics and seismic response of the retractable roof were analyzed comprehensively.

Keywords:Dongsheng Stadium; retractable roof; performance index; moving process; deformation of the rail truss; dynamic characteristic; seismic response

作者簡介：范重，博士，教授級(jí)高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:fanz@cadg.cn。

 

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