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| 异形墩柱抱紧系统力学分析与结构设计 |
| Mechanical Analysis and Structural Design on Holding System of Special‐shaped Pier Column |
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| DOI：10.16018/j.cnki.cn32-1650/n.202204008 |
| 中文关键词: 抱紧系统 承载结构 摩擦力 有限元分析 应力 |
| 英文关键词: holding system bearing structure frictional force finite element analysis stress |
| 基金项目: |
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| 摘要点击次数: 32 |
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| 中文摘要: |
| 针对抱箍法仅适用于圆形截面墩柱的致命缺陷，提出一种能够适用于各种截面形状墩柱的抱紧系统。通过理论分析给出了该系统的设计原理，得出此抱紧系统斜内杆与贴柱杆之间的夹角取arctg[1/(2μ)]时，该系统受力状态最优；结合具体工程案例给出了该系统的设计方法，并通过有限元分析得出该系统关键组件的受力特点，即斜内杆与框筒连接点处应力最大，内杆与贴柱杆铰接处有明显的应力集中现象，传载框上正弯矩远大于负弯矩，且最大正弯矩出现在与纵梁平行的边框上。 |
| 英文摘要: |
| In view of the fatal defect that the hoop method is only applicable to the circular section pier column, a kind of holding system which can be applied to the pier column of various section shapes is proposed. Through theoretical analysis, the design principle of the system is given, and it is concluded that the optimal stress state of the system is obtained when the Angle between the inclined inner rod and the post stick rod is arctg[1/(2μ)]. Combined with specific engineering cases, the design method of the system is given, and the stress characteristics of the key components of the system are obtained through finite element analysis, that is, the maximum stress is at the connection point of the inclined inner rod and the frame cylinder, the stress concentration is obvious at the hinge of the inner rod and the post rod, the positive bending moment of the load frame is far greater than the negative bending moment, and the maximum positive bending moment appears on the frame parallel with the longitudinal beam. |
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