On the basis of the bond-slip theory,a force transmission system of “solid element to shadow node and to beam element” is proposed and applied to the separated modelling of a reinforced concrete lining structure.The stress of the stressed steel bar is calculated by finite element method,and the maximum width of crack is obtained in association with the calculation formula specified in code.Compared with test results,the feasibility of calculating the maximum crack width of lining by using the force transfer system of finite element modeling in association with code formula is verified.The research offers a novel calculation method for the maximum crack width of similar projects.
Key words
reinforced concrete lining /
bond slip /
force transmission system /
maximum crack width /
finite element
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References
[1] 郑 治,刘 杰,彭成佳.水工隧洞受力特性研究和结构设计思路[J].水力发电学报,2010,29(2):190-196.
[2] 佘 磊,王玉杰,曹瑞琅,等.高压水工隧洞钢筋混凝土衬砌裂缝开度计算方法评析[J].水利水电技术,2018,49(8):142-149.
[3] 潘锦江,贺前进.水工钢筋混凝土结构裂缝计算若干问题探讨[J].四川水利,2002(1):18-20.
[4] 丁旭柳,伍鹤皋,朱忠华.钢筋混凝土压力隧洞裂缝宽度计算方法的探讨[J].武汉大学学报(工学版),2001,34(2):24-27.
[5] 杨晓明,孙国君,陈永林,等.锈蚀钢筋混凝土梁中钢筋与混凝土间粘结性能退化分析[J].硅酸盐通报,2017,36(4):1388-1394.
[6] 郑 治,徐世烺.水工隧洞结构限裂设计研究成果报告[R].贵阳:中国水电顾问集团贵阳勘测设计研究院,2008.
[7] 沈 威.圆形水工压力隧洞衬砌变形特性与限裂设计研究[D].大连:大连理工大学,2012.
[8] GB 50010—2010,混凝土结构设计规范[S].北京:中国建筑科学出版社,2010.
[9] SL 191—2008,水工混凝土结构设计规范[S].北京:中国水利水电出版社,2008.
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