高速公路43m高提梁机的结构分析及应用
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摘要
为了确保在小岭特大桥新增梁场提梁施工过程中提梁机能安全可靠地运行,采用大型有限元仿真软件ANSYS对提梁机进行整体建模,结合实际运行过程中可能遇到各种不利工况,对提梁机的强度、刚度、稳定性进行结构分析,并在提梁机安装完成后,检测提梁机在2种常见不利工况下的变形数据,验证ANSYS结构分析的可靠性。结果证明,43m高提梁机能满足现场各种不利工况下的强度、刚度、稳定性要求,在实际运行时,其支腿及主梁变形满足规范要求。
In order to ensure the safe and reliable operation of the lifting mechanism in the construction process of the new girder yard of Xiaoling Bridge,a large-scale finite element simulation software ANSYS was used to model the lifting machine as a whole,and the strength,stiffness and stability of the lifting machine were analyzed according to various unfavorable conditions which may occur in the actual operation process.The structural analysis of the strength,stiffness and stability of the girder lifting machine was carried out.After the lifting machine was installed,the reliability of the ANSYS structural analysis was verified by the deformation data of the lifting machine under two common unfavorable working conditions.Through analysis and research,the 43m girder lifting machine can meet the requirements of strength,stiffness and stability under various unfavorable working conditions.In actual operation,the deformation of its supporting legs and main girders is smaller than what the specifications require.
In order to ensure the safe and reliable operation of the lifting mechanism in the construction process of the new girder yard of Xiaoling Bridge,a large-scale finite element simulation software ANSYS was used to model the lifting machine as a whole,and the strength,stiffness and stability of the lifting machine were analyzed according to various unfavorable conditions which may occur in the actual operation process.The structural analysis of the strength,stiffness and stability of the girder lifting machine was carried out.After the lifting machine was installed,the reliability of the ANSYS structural analysis was verified by the deformation data of the lifting machine under two common unfavorable working conditions.Through analysis and research,the 43m girder lifting machine can meet the requirements of strength,stiffness and stability under various unfavorable working conditions.In actual operation,the deformation of its supporting legs and main girders is smaller than what the specifications require.
引文
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[2]马培新,王爱梅.浅谈客运专线箱梁预制场选址、布置与设备配置[J].筑路机械与施工机械化,2007,24(11):44-45,48.
[3]陈士通,崔晨光,李义强,等.既有提梁机结构损伤识别方法研究[J].铁道工程学报,2015,32(11):73-79.
[4]陈士通,崔晨光,李义强,等.基于作业模式的提梁机有限元仿真分析[J].图学学报.2016,37(4):502-508.
[5]陈士通,程泳,张耀辉,等.基于正交试验的提梁机运行参数对其结构安全影响分析[J].中国铁道科学,2017(1):49-56.
[6]陈士通,杜修力,王晓放,等.MG450-38型提梁机结构动态特性分析[J].铁道建筑,2015(3):34-36.
[7]王鸣,李玉杰,许丽明.基于遗传算法的提梁机主梁优化设计[J].筑路机械与施工机械化,2011,28(9):63-65.
[8]李永乐,杨怿,陈杰,等.门式双主梁提梁机施工抗风性能[J].铁道建筑,2011(8):26-29.
[9]陈士通,孙志星.李向东,等,基于线刚度比的提梁机结构动力特性分析[J].铁道工程学报,2014,31(11):77-81,97.
[10]陈浩,吴耀辉,张志华,等.铁路客运专线900t箱梁提运架设备研究[J].铁道标准设计,2008(3):1-5.
[11]孙志星,陈士通,许宏伟.支腿不同刚度比对门式起重机结构特性的影响[J].铁道建筑.2017,57(10):44-48.