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(中衡設(shè)計(jì)集團(tuán)股份有限公司， 蘇州 215021)

［摘要］蘇州高鐵新城第一中小學(xué)的報(bào)告廳為單層鋼筋混凝土框架結(jié)構(gòu)，屋蓋跨度27m×30m，屋頂覆土厚600mm。本小學(xué)的藝體館為四層鋼筋混凝土框架結(jié)構(gòu)，屋蓋跨度33-3m×27m。對(duì)報(bào)告廳和藝體館屋蓋均采用等高度桁架和變高度桁架兩種方案分別進(jìn)行設(shè)計(jì)，以研究變高度桁架的應(yīng)用優(yōu)勢(shì)。計(jì)算結(jié)果表明，變高度桁架方案的結(jié)構(gòu)體系合理，各項(xiàng)性能指標(biāo)能夠滿足結(jié)構(gòu)的抗震性能目標(biāo)，且與等高度桁架方案相比，其經(jīng)濟(jì)性較好。

［關(guān)鍵詞］大跨結(jié)構(gòu)； 變高度鋼桁架； 經(jīng)濟(jì)性對(duì)比； 抗震分析

中圖分類號(hào)：TU323-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)20-0061-05

Application and seismic analysis of heavy roof steel truss in a small venue building

Liu Yue, Chen Lu, Pang Honglun, Di Yunwei, Liu Tong

(ARTS Group Co., Ltd., Suzhou 215021, China)

Abstract:Lecture hall of First Middle and Primary School in Suzhou High-speed Rail New Town adopts single-story reinforced concrete frame structure with roof span of 27m×30m and roof covering of 600mm thickness. Art gymnasium of the school is a four-story reinforced concrete frame structure with the roof span of 33-3m×27m. Two schemes of equal height truss and variable height truss were used respectively for structural design to study the application advantage of variable height truss. Calculation results show that the structural system of steel truss structure scheme with variable height is reasonable and various performance indicators can meet the seismic performance goals of the structure, and it is economic compared with the equal height truss scheme.

Keywords:large-span structure;  variable height truss; economic comparison; seismic analysis

作者簡(jiǎn)介：劉悅，本科，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:liuyue@artsgroup.cn。