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CONSTRUCTION MONITORING OF STEEL AWNING STRUCTURE FOR COSTA RICA NATIONAL STADIUM DURING REMOVING TEMPORARY SUPPORTS
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摘要: 哥斯达黎加国家体育场罩棚采用预应力钢桁架拱结构,跨度286 m。采用支架拼装和分级落架施工,在落架过程中,采用磁变式无线应力监测系统进行实时应力监测,采用智能全站仪进行变形监测,为落架工作的顺利进行和罩棚结构的安全使用提供技术保障。研究结果表明,监测结果与理论计算结果吻合较好,表明钢结构罩棚塔架成功。Abstract: A prestressed steel trussed arch structure with a span of 286 m is used for Costa Rica National Stadium. The steel truss was fixed by bracing structures and the grading process for removing temperary supports was also used removing temporary supports.During removing temporary supports,the wireless stress monitoring system was used to monitor the steel awning stress and the intelligent total station was used to monitor the steel awning deformation, which could technically guarantee removing temporary supports successfully.The result showed that the results of monitoring are in good agreement with the results of theoretical calculation during the removing temporary supports. Which displays that removing temporary supports of steel awning structure is successful．
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Key words:
- steel truss /
- removing temperary supports /
- stress monitoring /
- deformation monitoring
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[2] 蓝天，张毅刚. 大跨度屋盖结构抗震设计[M]. 北京:中国建 筑工业出版社，2000. GB 500112010 建筑抗震设计规范[S]. [3] 郭彦林，崔晓强. 大跨度复杂钢结构施工过程中的若干技术问题及探讨[J]. 工业建筑，2004，34 (12): 1-5. [4] Robert G Sexsimth. Reliability During Temporary Erection Phases[J]. Engineering Structures，1998，20 (11):999-1003. [5] Garas F K，Hunter I. CIM Steel (Computer Integrated Manufacturing in Constructional Steel Work 2delivering the promise [J]. Structural Engineer，1998，76 (3): 43-45. [6] 熊仲明，曹欣，韦俊，等. 大跨度多弧形钢拱结构的受力性能试验与分析研究[J]. 土木工程学报，2010，43(1): 22-28. [7] 张启伟. 大型桥梁健康监测概念与监测系统设计[J]. 同济大 学学报:自然科学版，2001，29 (1): 65-69. [8] 鲍广鉴，陆建新，陈柏全，等. 复杂空间钢结构测控技术[J]. 施工技术，2005，34 (10): 11-14. [9] 戴伟珊，孙文波，胡涛. 2010 年亚运会游泳跳水馆大跨度管桁架屋盖钢结构设计[J]. 工业建筑，2010，40 (增刊): 372 －374. [10] 曾志斌，张玉玲. 国家体育场大跨度钢结构在卸载过程中的应力监测[J]. 土木工程学报，2008，41(3):1-6. [11] 曾志斌，张玉玲. 国家体育场大跨度钢结构卸载时应力监测系统[J]. 中国铁道科学，2008，29(1):140-143. [12] 胡聪. 介绍一种可用于工程安全与工程灾害监测的网络系统[C]∥ 2010 全国加载与检测系统应用学术交流会论文集. 2010:67-69. -
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