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(中國建筑西南設(shè)計研究院有限公司, 成都 610042)
摘要: 四川大劇院建筑面積約 59 000m2,平面呈矩形,尺寸 88. 2m×57m. 因場地狹小及劇院建筑功能的要求造成樓板大開洞、結(jié)構(gòu)錯層、大劇場池座底部大面積架空、大小劇場上下疊放等,這些特點給結(jié)構(gòu)設(shè)計帶來了較大的困難和挑戰(zhàn). 主體結(jié)構(gòu)選用鋼筋混凝土框架?剪力墻結(jié)構(gòu),屋蓋采用單層鋼網(wǎng)格結(jié)構(gòu). 針對小劇場底板和其他有振動的設(shè)備房間采取了浮筑樓板和其他隔聲措施,全樓沿周邊設(shè)置了 60 組黏滯阻尼墻以提高結(jié)構(gòu)在中、大震下的抗震性能. 采用 PMSAP、ETABS、MIDAS / Gen 和 SAUSAGE 等軟件建立了多種計算模型,并根據(jù)抗震性能化設(shè)計目標(biāo)要求,對結(jié)構(gòu)進行了整體靜動力彈塑性、樓蓋舒適度等方面的分析,并據(jù)此采取相應(yīng)措施. 結(jié)果表明,該結(jié)構(gòu)選型及布置合理、抗震性能優(yōu)良、整體結(jié)構(gòu)安全,能滿足建筑外觀及復(fù)雜的功能需求.
關(guān)鍵詞: 四川大劇院; 浮筑樓板; 鋼屋蓋; 懸挑桁架; 彈塑性分析; 黏滯阻尼器
中圖分類號:TU398. 2 文獻標(biāo)志碼:A 文章編號:1002?848X(2022)08?0001?07
DOI:10. 19701 / j.jzjg.LS201881
Structural design of Sichuan Grand Theatre
XIE Mingdian, LIU Yifeng, FENG Zhongwei, CHE Yuke
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610042, China)
Abstract: Sichuan Grand Theatre has a total floor area of about 59 000m2, its plane is rectangle and the plane size is88. 2m×57m. Due to narrow construction site and the theatre′s architectural function requirements, some floors in thetheatre building have big holes and some are staggered, the grand theatre has large bottom overhead area, and the smalltheatre is situated on top of the bigger other one. These characteristics bring more difficulties and challenges in the structuraldesign. The main structure adopts a reinforced concrete frame?shear wall structure and the roof adopts single?layer steellatticed shells. The floating floor and the other sound insulation measures were used in the small theater′s bottom plates andthe equipment room with vibrations. For improving building seismic performance under medium earthquake and rareearthquake, 60 viscous dampers were set along the outside surface of structure. A variety of softwares, such as PMSAP,ETABS, MIDAS / Gen and SAUSAGE were used to establish several models, and according to the requirements ofperformance?based seismic design, the overall structure static, dynamic elastic?plastic analysis and the floor comfort wereall executed and taken corresponding measures. The results show that the structure selection and layout is reasonable, theseismic performance is superior, the whole structure is safe, the architectural feature and function satisfactorily are fulfilled.
Keywords:Sichuan Grand Theatre; floating floor; steel roof; cantilever truss; elastic?plastic analysis; viscous damper
第一作者:謝明典,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事建筑結(jié)構(gòu)設(shè)計及抗震研究,Email:541128369@ qq.com.
[引用本文] 謝明典,劉宜豐,馮中偉,等. 四川大劇院結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2022,52(8):1?7. XIE Mingdian,LIU Yifeng, FENG Zhongwei, et al. Structural design of Sichuan Grand Theatre[J]. Building Structure,2022,52(8):1?7.
