天津滨海国际机场T2航站楼网格结构施工质量控制研究
发布时间：2019-02-26 14:04
【摘要】：采用网格结构的机场航站楼工程空间面积大、跨度大、结构造型复杂，其结构空间节点和杆件多，焊接工作量大、安装难度大；如何保障航站楼网格结构施工质量是个难题。目前人们对网格体系结构设计、计算理论的研究较多，但对其施工质量控制的研究较少。本文通过收集网格结构施工中发生事故的案例分析资料，，整理网格结构施工发生质量问题的主要原因，结合天津滨海国际机场T2航站楼工程焊接空心球网格结构屋面的施工质量控制情况，研究网格结构施工的质量控制。 首先从网格结构原材料的性能指标、进场验收、现场管理的控制、构件加工的技术准备、工艺流程及加工质量的控制、构件加工焊接质量控制、涂装质量控制、构件成品保护等方面研究机场航站楼网格结构的构件制作质量控制。 其次从网格结构安装方案的选择、安装设备的选择、现场施工测量、拼装、提升、焊接、卸荷等方面研究机场航站楼网格结构安装质量控制。 采用通用有限元软件Sap2000、MidasGen对机场航站楼典型网格分块吊装、楼面拼装承载力、吊装机械在楼面施工的楼面安全、网架提升施工、卸载等网格结构施工过程中不同工况的力学复核计算进行研究。 采用大型通用有限元分析软件ANSYS对天津滨海国际机场T2航站楼工程屋面网格结构焊接球节点拉压承载力和两个节点在实际受力状态下受力情况进行数值分析，解决该工程节点形式多、球体直径较大（400mm~900mm）且加载难度大、试验周期长的问题。 文中所涉及网格结构的构件加工、安装质量控制及施工过程不同工况的力学研究已得到成功实践，希望能给类似工程的施工提供借鉴。
[Abstract]:The airport terminal project with grid structure has the advantages of large space area, large span, complex structural modeling, many spatial nodes and bars, large welding workload and installation difficulty, and how to ensure the construction quality of terminal grid structure is a difficult problem. At present, there are many researches on grid architecture design and computing theory, but there is little research on construction quality control. In this paper, the main causes of quality problems in grid structure construction are sorted out by collecting the case analysis data of accidents in grid structure construction. Combined with the construction quality control of welded hollow spherical grid roof in Tianjin Binhai International Airport T2 terminal project, the quality control of grid structure construction is studied. First of all, from the grid structure raw material performance index, incoming acceptance, site management control, component processing technical preparation, process flow and processing quality control, component processing welding quality control, painting quality control, The manufacturing quality control of the grid structure of airport terminal building is studied in the aspects of component product protection and so on. Secondly, from the selection of grid structure installation scheme, installation equipment, site construction survey, assembly, lifting, welding, unloading and other aspects of the grid structure installation quality control of airport terminal building. By using the general finite element software Sap2000,MidasGen, the typical grid lifting of airport terminal building, the bearing capacity of the floor assembly, the safety of the hoisting machinery in the floor construction, and the lifting construction of the space frame are carried out. The mechanical check calculation of different working conditions in the construction process of unloaded grid structure is studied. The tensile and compressive load-carrying capacity of welded spherical joints of the roof grid structure of Tianjin Binhai International Airport T2 Terminal Project and the stress condition of two joints under the actual stress state were numerically analyzed by using the large-scale general finite element analysis software ANSYS. The problems of many joint forms, large sphere diameter (400mm~900mm), large loading difficulty and long test period are solved. The research on machining, installation quality control and mechanics of different working conditions of grid structure has been successfully carried out in this paper. It is hoped that it can be used for reference in the construction of similar projects.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU765
本文编号：2430843
[Abstract]:The airport terminal project with grid structure has the advantages of large space area, large span, complex structural modeling, many spatial nodes and bars, large welding workload and installation difficulty, and how to ensure the construction quality of terminal grid structure is a difficult problem. At present, there are many researches on grid architecture design and computing theory, but there is little research on construction quality control. In this paper, the main causes of quality problems in grid structure construction are sorted out by collecting the case analysis data of accidents in grid structure construction. Combined with the construction quality control of welded hollow spherical grid roof in Tianjin Binhai International Airport T2 terminal project, the quality control of grid structure construction is studied. First of all, from the grid structure raw material performance index, incoming acceptance, site management control, component processing technical preparation, process flow and processing quality control, component processing welding quality control, painting quality control, The manufacturing quality control of the grid structure of airport terminal building is studied in the aspects of component product protection and so on. Secondly, from the selection of grid structure installation scheme, installation equipment, site construction survey, assembly, lifting, welding, unloading and other aspects of the grid structure installation quality control of airport terminal building. By using the general finite element software Sap2000,MidasGen, the typical grid lifting of airport terminal building, the bearing capacity of the floor assembly, the safety of the hoisting machinery in the floor construction, and the lifting construction of the space frame are carried out. The mechanical check calculation of different working conditions in the construction process of unloaded grid structure is studied. The tensile and compressive load-carrying capacity of welded spherical joints of the roof grid structure of Tianjin Binhai International Airport T2 Terminal Project and the stress condition of two joints under the actual stress state were numerically analyzed by using the large-scale general finite element analysis software ANSYS. The problems of many joint forms, large sphere diameter (400mm~900mm), large loading difficulty and long test period are solved. The research on machining, installation quality control and mechanics of different working conditions of grid structure has been successfully carried out in this paper. It is hoped that it can be used for reference in the construction of similar projects.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU765
【参考文献】
相关期刊论文 前1条
1 郑先元;;钢结构工程施工质量监督中的常见问题及应对措施[J];工程质量;2010年09期
本文编号：2430843
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