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（1山東同圓設(shè)計(jì)集團(tuán)有限公司，濟(jì)南 250101；2 山東建筑大學(xué)土木工程學(xué)院，濟(jì)南 250101）

［摘要］采用整體建模計(jì)算與局部建模計(jì)算相結(jié)合的方式，對(duì)某大跨度體育館鋼-混凝土混合結(jié)構(gòu)進(jìn)行了結(jié)構(gòu)分析和設(shè)計(jì)，探討了鋼結(jié)構(gòu)與混凝土結(jié)構(gòu)協(xié)同工作機(jī)制。通過對(duì)3種模型計(jì)算結(jié)果的分析得出，建立整體模型對(duì)于整體結(jié)構(gòu)設(shè)計(jì)而言是很有必要的，而對(duì)于鋼屋蓋設(shè)計(jì)，在合理考慮下部支撐以及支座剛度后，可以單獨(dú)建立模型進(jìn)行計(jì)算。大跨連續(xù)網(wǎng)架的大小跨相接位置的支座承受拉力，可采用滑動(dòng)球鉸支座，并重新定義支座水平剛度，以修正初始模型。鋼屋蓋對(duì)基礎(chǔ)沉降比較敏感，基礎(chǔ)設(shè)計(jì)時(shí)遵循支撐鋼屋蓋的框架柱下多布樁、其余框架柱下盡量少布樁的原則，以減小支撐鋼屋蓋的框架柱基礎(chǔ)的沉降值及相鄰基礎(chǔ)的沉降差。體育館結(jié)構(gòu)超長(zhǎng)，設(shè)計(jì)時(shí)考慮溫度作用對(duì)構(gòu)件內(nèi)力的影響，采取了多種措施以減小溫度作用和收縮變形對(duì)鋼筋混凝土結(jié)構(gòu)的不利影響。

［關(guān)鍵詞］大跨度體育館; 協(xié)同作用; 連續(xù)網(wǎng)架; 超長(zhǎng)結(jié)構(gòu)

中圖分類號(hào)：TU398+.9      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)15-0029-07

Design and analysis of large-span steel-concrete gymnasium structure

Wei Qiang1,2, Ni Xianguang1, Qi Zheng1

 (1 Shandong Tongyuan Design Group Co., Ltd., Jinan 250101, China; 2 Civil Engineering Department, Shandong Jianzhu University, Jinan 250101, China）

Abstract: In combination of an overall model and a local model calculation, a large-span steel-concrete gymnasium structure was analyzed and designed, and the cooperative work mechanism of steel structure and concrete structure was discussed. Based on the calculation results of three models, it is very necessary to establish an overall model for the overall structure design, and in the design of steel structure roof, in consideration of the lower support and bearing stiffness, it is feasible to establish a model individually. The cross connection of large and small span bears tensile stress in the large-span continuous truss structure, so the spheric hinge supports were adopted, and the bearing horizontal stiffness was redefined to revise the initial model. In consideration that the steel structure roof is relatively sensitive to the foundation settlement, a rule of more piles under frame columns supported by steel roof and less piles under the other frame columns  applied in the design to reduce the foundation settlement values of the frame columns supported by steel roof and the differential settlements of adjacent foundations. Considering the super-long structure of the gymnasium and the effect of temperature on the component stress, many kinds of measurements were taken in the structural design to reduce the adverse effects of temperature and shrinkage deformation on the reinforced concrete structure.

Keywords: large-span gymnasium; cooperative effect; continuous truss structure; super-long structure

作者簡(jiǎn)介：魏強(qiáng)，學(xué)士，高級(jí)工程師，Email:wq950059@126.com。

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