- 摘 要
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（1 中衡設(shè)計集團(tuán)股份有限公司， 蘇州 215021； 2 江蘇省生態(tài)建筑與復(fù)雜結(jié)構(gòu)工程技術(shù)研究中心， 蘇州 215021）
［摘要］鶯脰湖內(nèi)湖小茶室主體為單層建筑，屋脊高度6-6m，檐口高度5-05m，采用鋼-木組合結(jié)構(gòu)體系，內(nèi)圍由10根懸臂鋼柱構(gòu)成結(jié)構(gòu)抗側(cè)力系統(tǒng)，外圍40根膠合木柱為重力柱，屋面水平構(gòu)件均采用膠合木梁。鋼-木組合結(jié)構(gòu)設(shè)計不同于鋼結(jié)構(gòu)或木結(jié)構(gòu)，參考?xì)W洲標(biāo)準(zhǔn)BS EN 1998-1∶2004的結(jié)構(gòu)性能系數(shù)確定了本結(jié)構(gòu)的地震作用計算參數(shù)，同時對鋼構(gòu)件與木構(gòu)件的連接節(jié)點轉(zhuǎn)動剛度進(jìn)行了計算分析，采用MIDAS Gen軟件對結(jié)構(gòu)的整體指標(biāo)進(jìn)行了計算，結(jié)合《膠合木結(jié)構(gòu)技術(shù)規(guī)范》（GB/T 50708—2012）和《鋼結(jié)構(gòu)設(shè)計標(biāo)準(zhǔn)》（GB 50017—2017），對膠合木構(gòu)件按非火災(zāi)與火災(zāi)兩種承載力極限狀態(tài)及對抗側(cè)力鋼柱按非火災(zāi)承載力極限狀態(tài)分別進(jìn)行了設(shè)計，分析結(jié)果表明結(jié)構(gòu)安全可靠。本文的計算設(shè)計方法可供類似鋼-木組合結(jié)構(gòu)參考。
［關(guān)鍵詞］鋼-木組合結(jié)構(gòu)； 抗側(cè)力系統(tǒng)； 重力柱； 結(jié)構(gòu)性能系數(shù)； 節(jié)點轉(zhuǎn)動剛度； 火災(zāi)
中圖分類號：TU318, TU398文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)01-0071-05
Steel-wood composite structural design of small tea room in Yingdou Lake
Zhu Xunyan1,2, Chen Lu1,2, Zhou Wei1,2, Wang Hui1,2, Tao Jian1
(1 ARTS Group Co., Ltd., Suzhou 215021, China； 2 Jiangsu Engineering Institute of Ecological Building & Complex Structure, Suzhou 215021, China)
Abstract:The main body of the small tea room in Yingdou Lake is a single-story building with the ridge of height of 6-6m and the cornice with height of 5-05m. The steel-wood composite structural system is adopted, and the inner structure is composed of 10 cantilever steel columns to form the structure′s lateral force resisting system, the outer 40 glued laminated timber columns to act as gravity columns, and glued laminated timber beams as roof horizontal members. The steel-wood composite structural design was different from design of the steel structure or the wood structure. The structural performance coefficient of the European standard BS EN 1998-1∶2004 was used to determine the seismic calculation parameters of the structure, and the rotational stiffness of the connection joint between the steel component and the wood component was calculated and analyzed. MIDAS Gen software was used to calculate the overall index of the structure. Combined with the Technical code of glued laminated timber structures (GB/T 50708—2012) and the Standard for design of steel structures (GB 50017—2017), the glued laminated timber members were designed according to the two bearing capacity limit states of non-fire and fire respectively and lateral force resisting steel columns were designed according to the non-fire bearing capacity limit state. The analysis results show that the structure is safe. The proposed calculation design method can be used as a reference for design of similar steel-wood composite structures.
Keywords:steel-wood composite structure; lateral force resisting system; gravity column; coefficient of structural performance; node rotation stiffness; fire
作者簡介：朱尋焱，碩士，工程師，一級注冊結(jié)構(gòu)工程師，Email:zhuxunyan@artsgroup.cn。
