超高超大悬挑结构高支撑体系受力分析  

Bearing Analysis of High Formwork Support System Under Super-high and Oversized Cantilever Structure

作　　者：刘运林[1] 丁克伟[1] 叶献国[2] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]安徽建筑工业学院建筑工程与地下结构安徽省重点实验室,安徽合肥230601

出　　处：《施工技术（下半月）》2012年第3期104-106,共3页Construction Technology

基　　金：国家自然科学基金重大研究计划项目(90715016);安徽省自然科学基金项目(070415220)

摘　　要：现浇混凝土结构施工期间,结构和支撑体系受力不断变化,由模板支撑体系与早龄期混凝土结构所组成的临时承载体系是材料性能、结构形式、空间位置均随时间变化的时变结构体系。结合工程实例,建立了超高超大悬挑结构高支撑体系力学模型,分析其受力机理;采用Midas/Gen软件模拟了施工过程,通过对模拟结果和现场监测结果比较,指出现场监测与模拟结果趋势基本一致,进一步揭示了超高超大悬挑结构高支撑体系的受力机理。During the construction of cast-in-situ concrete structure,the stress condition of the structure and support system varies constantly.The temporary bearing system consisting of early-age concrete structures and formwork system is time-dependent structural system and the material properties,structural forms and spatial location vary with the construction process.Combined with a practice project,the authors discuss the bearing mechanism of high formwork support system under super-high and oversized cantilever structure.Midas/Gen software is used to simulate the construction process,and the results＇ trend is in agreement with the monitoring data on site.

关 键 词：悬挑结构 脚手架 支撑 数值模拟 

分 类 号：TU375.5[建筑科学—结构工程]