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(中國航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120)
［摘要］工程位于洛陽市，建筑平面為不完整的圓環(huán)形，圓環(huán)角度243°，外環(huán)直徑142.7m，環(huán)形平面中心線弧長(zhǎng)約236m，建筑總高度40.45m，地上8層，地下1層。結(jié)構(gòu)是由鋼管柱和焊接H型鋼梁組成的鋼框架和多個(gè)鋼筋混凝土核心筒組成。計(jì)算采用ANSYS軟件，通過對(duì)結(jié)構(gòu)整體施加溫度作用，考慮了整體溫度變化、屋頂陽光直射、地下室剛度等不同影響因素，得出了結(jié)構(gòu)在溫度變化時(shí)樓板、剪力墻、鋼梁等各部分的溫度變形和應(yīng)力分布規(guī)律，樓板變形并不沿著弧線長(zhǎng)度均勻變化，而是接近于沿外環(huán)直徑均勻變化。根據(jù)分析結(jié)果為工程設(shè)計(jì)提了參考。
［關(guān)鍵詞］環(huán)形平面；鋼-混凝土混合結(jié)構(gòu)；溫度應(yīng)力；樓板變形；設(shè)計(jì)建議
Analysis of thermal stress for partial ring plane steel-concrete hybrid structure
Yang Huijie, Jin Laijian(China Aviation Planning and Construction Development Co., Ltd., Beijng 100120, China)
Abstract:The project is located in Luoyang, Henan province. The plane is a partial ring with the angle 243°, outer diameter 142.7m and inner diameter 236m. The height of the structure is 40.45m, with eight floors overground and one floor underground. The hybrid structure is made up of several reinforced concrete core walls and steel frames with steel tube columns and H profiled bar beams. Finite element analysis software ANSYS is adopted and temperature effect is put on the whole structure. Considering the overall temperature variety, sunlight on the roof, basement stiffness and so on, the laws are concluded on temperature displacement and stress distributing of the floors, shear walls and beams. Floor displacement is nearly changing along outer diameter of the ring plane. The suggestions are put forward for project design.
Keywords:ring plane; steel-concrete hybrid structure; thermal stress; floor displacement; suggestions for design
作者簡(jiǎn)介：楊會(huì)杰，男，工程師，Email: yhjtj2004@163.com。
參考文獻(xiàn)
［1］王鐵夢(mèng). 工程結(jié)構(gòu)裂縫控制［M］. 北京：中國建筑工業(yè)出版社，1996.
［2］王鐵成. 混凝土結(jié)構(gòu)原理［M］. 天津：天津大學(xué)出版社，2002.
［3］丁陽. 鋼結(jié)構(gòu)設(shè)計(jì)原理［M］. 天津：天津大學(xué)出版社，2004.