摘要
针对开口型双曲面筒体混凝土结构施工的难点,在充分分析结构特点的基础上,以钢丝绳为主对筒体模架系统进行空间定位,以对拉形式形成自平衡的模板无支撑"伞"状受力体系,提出并应用了无支撑模板搭设施工技术。以典型筒体施工为例,对施工过程进行了有限元模拟分析,在多方案研究分析的基础上,提出了最优方案,验证了该施工技术的可行性,为开口型双曲面筒体混凝土结构的顺利施工提供了理论指导。工程实践表明,该施工技术安全可靠,具有较好的综合效益,可为类似工程提供参考经验。
To overcome the difficulty of constructing open type hyperbolica tube concrete structures,a self-balanced umbrella-shape force bearing system was applied based on the analysis of the structure characteristics by mainly tensioning the steel wire ropes symmetrically to fix the position of the shuttering of the tubes.And the new construction method with unbraced system for shuttering construction was proposed and used.The construction process of a typical tube structure was simulated and analyzed by the finite element me-thod(FEM).The optimal scheme was proposed based on the study and analysis of multiple schemes.The research verified the feasibility of the open type tube construction and served as the theoretical basis for the successful tube construction.The results show that the construction method is safe and reliable with good comprehensive benefits,which can provide reference experience for similar projects.
作者
韩向科
苏波
王震
刘新国
梁少刚
HAN Xiang-ke;SU Bo;WANG Zhen;LIU Xin-guo;LIANG Shao-gang(Shanghai Ershiye Construction CO.,LTD.,Shanghai 201999,China;Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang 212013,China)
出处
《科学技术与工程》
北大核心
2021年第7期2879-2888,共10页
Science Technology and Engineering
基金
“十二五”国家科技支撑计划(2015BAL02B02)
江苏大学青年扶持基金(5621480001)。
关键词
开口型
筒体结构
无支撑
模板体系
数值模拟
有限元法
open type
tube structures
unbraced
shuttering
numerical simulation
finite element method
