悬挂式单轨交通工程轨道梁钢腹板结构设计参数优化
庞林1顾骁2,3陶奇1曾永平1
Optimization of Structural Design Parameters for Track Beam Steel Web Plates of Suspended Monorail Transit Projects
PANG Lin1GU Xiao2,3TAO Qi1ZENG Yongping1
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作者信息:1.中铁二院工程集团有限责任公司， 610031， 成都
2.西南交通大学土木工程学院， 610031， 成都
3.中国铁路上海局集团有限公司杭州铁路枢纽工程建设指挥部， 310020， 杭州
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Affiliation:1.PANG Lin1, GU Xiao2,3, TAO Qi1, ZENG Yongping1
2.China Railway Eryuan Engineering Group Co., Ltd., 610031, Chengdu, China;
3.School of Civil Engineering, Southwest Jiaotong University, 610031, Chengdu, China;
4.Hangzhou Railway Hub Project Construction Command, China Railway Shanghai Group Co., Ltd., 310020, Hangzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.20231313
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中图分类号/CLCN:U442.5∶U232
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栏目/Col:土建工程
摘要:
［目的］悬挂式单轨交通工程轨道梁采用开口箱梁截面。为了兼顾经济效益和列车运行平稳性，有必要优化悬挂式单轨交通工程轨道梁钢腹板的结构设计参数。［方法］采用了一种格构式钢腹板设计和加工制造方案，并选定其关键几何尺寸作为优化设计参数。基于ABAQUS软件建立轨道梁有限元模型，并利用ISIGHT软件进行最优参数求解。［结果及结论］采用格构式钢腹板的设计方案，能够显著增大梁高，在提升轨道梁的刚度的同时，减小钢材用量和节约成本。确定了最佳的参数范围：格构式钢腹板下缘到开孔六边形下边界取325~425 mm，开孔六边形斜边与中轴线夹角为30°～60°。相较于整体钢腹板方案,格构式钢腹板方案可以节省用钢量百分比约16%～24%。联合应用ABAQUS软件+ISIGHT软件进行结构优化，避免了人工调参繁琐过程，提升了设计效率。
Abstracts:
［Objective］ The track beams used in suspended monorail transit projects adopt an open box girder cross-section. To balance the economic efficiency and train operation stability, it is necessary to optimize the structural design parameters of track beam steel web plates in suspended monorail transit systems. ［Method］ A latticed steel web plate design and fabrication scheme is adopted, and its key geometric dimensions are selected as design optimization parameters. A finite element model of the track beam is established by using ABAQUS software, and the optimal parameter solutions are obtained through ISIGHT software. ［Result & Conclusion］ The latticed steel web plate design plan significantly increases the beam height, thereby enhancing the stiffness of track beam while reducing steel usage and saving costs. The optimal parameter ranges are determined as follows: the vertical distance from the bottom edge of the latticed steel web plate to the lower boundary of hexagonal opening should be 325-425 mm, and the angle between the slanted edge of hexagon and the central axis should be 30°60°. Compared with the solid steel web design, the latticed steel web plate plan can reduce steel consumption by approximately 16%-24%. The combined use of ABAQUS software and ISIGHT software for structural optimization can avoid the tedious process of manual parameter tuning and improves design efficiency.
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