| 小半径曲线桥上CRTS Ⅱ型板式无砟轨道侧向挡块受力分析 |
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| 引用本文： | 朱彬.小半径曲线桥上CRTS Ⅱ型板式无砟轨道侧向挡块受力分析[J].水运科技信息,2011(3):59-62. |
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| 作者姓名： | 朱彬 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司,武汉430063 |
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| 摘 要： | 建立了小半径曲线桥上＂轨道-梁-墩＂一体化计算模型,分析其在温度变化和离心力作用下联合板位移以及侧向挡块的受力情况,对曲线半径、侧向挡块弹性垫板刚度和侧向挡块间距的影响规律进行了分析。通过对侧向挡块进行结构强度检算,认为侧向挡块具有较高的安全储备量。
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| 关 键 词： | 小半径曲线 CRTS Ⅱ型板式无砟轨道 侧向挡块 受力分析 |
Stress Analysis of Lateral Block in CRTS Ⅱ Slab Ballastless Track on Bridge at Small Radius Curve |
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| Zhu Bin.Stress Analysis of Lateral Block in CRTS Ⅱ Slab Ballastless Track on Bridge at Small Radius Curve[J].Transportation Science & Technology,2011(3):59-62. |
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| Authors: | Zhu Bin |
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| Institution: | Zhu Bin (China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China) |
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| Abstract: | A holistic computation module for ＂trackwork-girder-pier＂ on bridge at small radius curve is upbuilt in this paper.The displacement of joint slab and the stress of lateral block which are lead by the change of tempetature and the the action of centrifugal force are analyzed.And then the rule caused by the radius of curve,the rigidity of elastic pad of lateral block,the space between lateral blocks is summarized.Based on the structural strength calculating,it＇s confirmed that lateral block have high security reserves. |
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| Keywords: | small radius curve CRTS Ⅱ slab ballastless track lateral block stress analysis |
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