探讨大型会议中心建筑项目智能化工程中关于弱电井内彩虹金属线槽、各种设备设施的BIM(Building Information Modeling)技术规划、深化设计、论证以及施工管理。通过BIM(REVIT)技术的应用,实现弱电井内彩虹金属线槽、各类设备设施的精...探讨大型会议中心建筑项目智能化工程中关于弱电井内彩虹金属线槽、各种设备设施的BIM(Building Information Modeling)技术规划、深化设计、论证以及施工管理。通过BIM(REVIT)技术的应用,实现弱电井内彩虹金属线槽、各类设备设施的精准设计、施工流程优化、工程质量提升,并降低项目成本。详细分析BIM(REVIT)技术在大型会议中心项目智能化工程场景应用的重要意义,以期为相关人员提供参考和借鉴。展开更多
Numerical simulation and experimental results were employed for the identification of the most vulnerable zones in three-pass cold-metal-transferring （CMT） welded joint. The residual stress distribution in the joint...Numerical simulation and experimental results were employed for the identification of the most vulnerable zones in three-pass cold-metal-transferring （CMT） welded joint. The residual stress distribution in the joint was predicted by finite element （FE） method, while the structural morphology of distinctive zones was obtained through metallographic experiments. The highest principal stress made the symmetric face of the joint most sensitive to tensile cracks under service conditions. Whereas, the boundaries between the weld seam and the base plates were sensitive to cracks because the equivalent von Mises stress was the highest when the first interpass cooling was finished. The third weld pass and the inter-pass remelted zones exhibited the modest mechanical performances as a result of the coarse grain and coarse grain boundary, respectively. The most vulnerable zones were regarded to be the crossed parts between the zones identified by numerical and experimental methods.展开更多
文摘探讨大型会议中心建筑项目智能化工程中关于弱电井内彩虹金属线槽、各种设备设施的BIM(Building Information Modeling)技术规划、深化设计、论证以及施工管理。通过BIM(REVIT)技术的应用,实现弱电井内彩虹金属线槽、各类设备设施的精准设计、施工流程优化、工程质量提升,并降低项目成本。详细分析BIM(REVIT)技术在大型会议中心项目智能化工程场景应用的重要意义,以期为相关人员提供参考和借鉴。
基金supported by the National Key Research and Development Program of China(2021YFA1500700)National Natural Science Foundation of China(22033002,22173018)Fundamental Research Funds for the Central Universities。
基金Project(9140C850205120C8501)supported by the Major Program of State Key Laboratory of Remanufacturing,China
文摘Numerical simulation and experimental results were employed for the identification of the most vulnerable zones in three-pass cold-metal-transferring （CMT） welded joint. The residual stress distribution in the joint was predicted by finite element （FE） method, while the structural morphology of distinctive zones was obtained through metallographic experiments. The highest principal stress made the symmetric face of the joint most sensitive to tensile cracks under service conditions. Whereas, the boundaries between the weld seam and the base plates were sensitive to cracks because the equivalent von Mises stress was the highest when the first interpass cooling was finished. The third weld pass and the inter-pass remelted zones exhibited the modest mechanical performances as a result of the coarse grain and coarse grain boundary, respectively. The most vulnerable zones were regarded to be the crossed parts between the zones identified by numerical and experimental methods.
