Lanzhou University of Technology Institutional Repository (LUT_IR)
Internal force analysis of external prestress cable of tilted belly poles | |
Song, Yu1,2; Wang, Yong-Jie1; Li, Ai-Peng2 | |
2011-05-01 | |
发表期刊 | Gongcheng Lixue/Engineering Mechanics |
ISSN | 10004750 |
卷号 | 28期号:5页码:143-148 |
摘要 | Based on traditionally external prestressed reinforcement approaches, the paper proposes a new reinforcement technique, external prestressed cable of tilted belly poles. Taking the simply-supported beam as the object to be reinforced, the cable behavior is modeled. The formulas for the cable deformation and tension forces are obtained. The relations between cable deformation, tension forces and the applied load are investigated in this paper, showing that: (1) the cable configuration is of the form of ellipse; (2) the maximum horizontal tension force of the cable occurs at the mid-span of the simply-supported beam, and the minimum horizontal force occurs at the anchor point. Such a stress characteristic makes fully use of the cable advantage of high tensile capacity, as well as reduces the unfavorable effects of cable horizontal force on the beam. Under the action of the radial uniform load, the nonlinear relationship between the cable length incensement and the deflection incensement is observed. The iterative calculation algorithm prefers small load-step, the smaller the load-step, the higher the precision. |
关键词 | Deformation Horizontal wells Iterative methods Poles Prestressed beams and girders Reinforcement External prestress Internal force analysis Non-linear relationships Prestressed reinforcement Reinforcement technique Simply supported beams Stress characteristics Structure reinforcement |
收录类别 | EI |
语种 | 中文 |
出版者 | Tsinghua University |
EI入藏号 | 20112314043509 |
EI主题词 | Cables |
EI分类号 | 408.2 Structural Members and Shapes - 512.1.1 Oil Fields - 921.6 Numerical Methods - 951 Materials Science |
来源库 | Compendex |
分类代码 | 408.2 Structural Members and Shapes - 512.1.1 Oil Fields - 921.6 Numerical Methods - 951 Materials Science |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/111323 |
专题 | 兰州理工大学 土木工程学院 |
作者单位 | 1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China; 2.Northwest Center for Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou 730050, China |
第一作者单位 | 甘肃省土木工程防灾减灾重点实验室 |
第一作者的第一单位 | 甘肃省土木工程防灾减灾重点实验室 |
推荐引用方式 GB/T 7714 | Song, Yu,Wang, Yong-Jie,Li, Ai-Peng. Internal force analysis of external prestress cable of tilted belly poles[J]. Gongcheng Lixue/Engineering Mechanics,2011,28(5):143-148. |
APA | Song, Yu,Wang, Yong-Jie,&Li, Ai-Peng.(2011).Internal force analysis of external prestress cable of tilted belly poles.Gongcheng Lixue/Engineering Mechanics,28(5),143-148. |
MLA | Song, Yu,et al."Internal force analysis of external prestress cable of tilted belly poles".Gongcheng Lixue/Engineering Mechanics 28.5(2011):143-148. |
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