| 非对称缓和曲线坐标计算方法 |
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| 引用本文： | 闵世平,林宗坚.非对称缓和曲线坐标计算方法[J].测绘科学,2011,36(1):61-62. |
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| 作者姓名： | 闵世平 林宗坚 |
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| 作者单位： | 中国中铁二院工程集团有限责任公司;中国测绘科学研究院; |
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| 摘 要： | 本文重点阐述高等级公路非标准缓和曲线的施工放样测量.缓和曲线是设置在直线和圆曲线之间的一种线型,起缓和过渡作用,其目的在于保证车辆由直线进入圆曲线(或由圆曲线进入直线)时的横向稳定,缓和曲线的曲率半径随曲线长度的增加而均匀连续地变小,本文综合了各种情况下的曲线计算,给出了直接计算和间接计算两种计算方法,并用C编写了计算...
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| 关 键 词： | 缓和曲线 曲线半径 缓圆点 坐标旋转 |
Algorithm for calculating the coordinates of unsymmetrical easement curve |
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| MIN Shi-ping,LIN Zong-jian.Algorithm for calculating the coordinates of unsymmetrical easement curve[J].Science of Surveying and Mapping,2011,36(1):61-62. |
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| Authors: | MIN Shi-ping LIN Zong-jian |
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| Institution: | ②(①China Railway Eryuan Engineering Group Co.LTD,Chengdu 610031,China;②Chinese Academy of Surveying and Mapping,Beijing 100039,China) |
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| Abstract: | This text focused on the construction and lofting of unsymmetrical easement curve for high standard highway.Easement curve is a kind of linetypes between circle curve and line,the purpose is to transfer alleviation and ensure lateral stability when the car drives from line to circle curve.Its Curve Radius will be uniform continuity lessening as its length increases.Through research for all kinds of curves,two kinds of new calculation methods were found as direct method and indirect method.At the same time,t... |
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| Keywords: | easement curve curve radius point of spiral to curve coordinate rotation |
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