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大跨度多层曲面焊接球节点网壳结构是空间结构安装施工的难点。施工过程中,如何合理、有效地预控网架的整体工程质量,是确保工程顺利进行的关键。简明介绍了施工过程中的工程质量控制要点:优化组合,减少杆件对接数量;过程观测,控制安装累积误差;跟踪焊接,预控焊接收缩量及变形。该控制要点的成功运用,表明其具有实用性及可操作性。
Large-span multi-layer surface solder ball grid reticular shell structure is the difficulty of installation and construction of space structure. During the construction process, how to pre-control the overall quality of the gridwork in a reasonable and effective manner is the key to ensure the smooth progress of the project. Briefly introduced the construction quality control key points in the process: optimize the combination to reduce the number of bar docking; process observation, control installation cumulative error; tracking welding, pre-control welding shrinkage and deformation. The successful application of the control points shows that it has practicality and operability.