2014年7月下 施工技术 第43卷第14期 CONSTRUCTION TECHNOLOGY 115 D0I:10.7672/sgjs2014140115 某大悬挑结构支撑胎架卸载过程分析 陈晓阳 (中铁第四勘察设计院集团有限公司，湖北武汉430063) [摘要]大悬挑结构因其独特的建筑表现形式而越来越广泛地被用于城市的地标性建筑.在其施工的过程中需布 置一定数目的临时支撑胎架以完成悬挑部分的施工，而胎架卸载的过程使整个结构由临时支撑体系和设计结构共 同受力转变为设计结构受力状态.为保证这一转变过程的安全，建立了某大悬挑结构的有限元模型，对胎架卸载 的全过程进行分析计算，最后得出优化的胎架卸载方案. [关键词]悬挑结构；胎架；卸载；有限元分析；优化 [中图分类号]TU311.41;TU758 [文献标识码]A [文章编号]1002-8498(2014)14-0115-05 Analysis on Support Frame Unloading Process of a Large Cantilever Structure Chen Xiaoyang China Railseay Siyuan Survey and Design Group Co.Ltd.Wuhan Hubei 430063 China) Abstract:Large cantilever structure was increasingly widely used in landmark buildings of a city as its unique architectural form.A certain number of temporary support frames were arranged to plete the construction of cantilever part of the structure.The integral working of temporary support frames and design structure was changed into condition of design structure working separately in the process of unloading support frame.To ensure the safety of this transformation process the finite element model of a large cantilever structure was established and the analysis on overall process of the support frame unloading was carried out subsequently and an optimized support frame unloading scheme was obtained finally. Key words:cantilever structure;jig;unloading;finite element analysis;optimization 随着社会财富的快速积累，人们对建筑结构的设置临时支撑胎架，待大悬挑结构整个空间受力体 审美和使用功能提出了更高要求.悬挑结构建筑系形成后对结构卸载.在胎架逐步卸载过程中，整 方案能够很好地将建筑艺术、结构艺术表现出来，个结构由临时支撑体系和设计结构共同受力转变 并能满...
某大悬挑结构支撑胎架卸载过程分析.pdf
