空间关节轴承复杂节点制作工艺的开发与应用

Development and Application of Complex Node Production Process for Space Spherical Bearings

已有关于关节轴承节点的研究主要是从设计和现场安装方面进行解读,对工厂制作关节轴承节点的介绍则相对不足,本文通过对关节轴承节点制作过程的补充,将关节轴承节点在钢结构领域的应用,从设计、制作、安装三步有机的结合起来。通过分析关节轴承节点的制作过程,从拼装、焊接、检验三方面着手,解决节点制作中的重难点问题。通过焊接工艺评定确定了斜T型小夹角位置焊接参数及坡口角度等,使该类型焊缝质量得到保证;采用塞焊和坡口焊等措施,解决了轴承耳板补强贴板热镀锌后变形问题;通过加设支撑及销轴试穿检验工序,有效保证了关节轴承节点制作精度;提出了以关节轴承节点板件为主,其余部件为次的制作思路,便于制作和检验。主要通过控制关节轴承复杂节点制作过程,对空间关节轴承复杂节点的拼装精度和焊接变形进行控制,保证了节点制作质量,提升板件安装精度,为其他类似工程提供了参考经验。

Mainly introduced the Sanya stadium project in the space spherical bearing complex node production process, before there have been many people from the design and on-site installation to interpret, but the introduction of the factory to make spherical bearing nodes is relatively insufficient, this article through the joint bearing node production process supplement, the application of spherical bearing nodes in the field of steel structure, from the design, production, installation of three steps of organic combination, to help related practitioners smooth construction. By analyzing the production process of spherical bearing nodes, starting from the three aspects of assembly, welding and inspection, we will solve the difficult problems in the production of nodes. Through the welding process evaluation, the welding parameters and groove angle of the oblique T-shape small angle position are determined, so that the quality of the weld of this type is guaranteed;the plug welding and groove welding measures are used to solve the deformation problem after the hot-dip galvanizing of the bearing ear plate reinforcement patch;the precision of the joint bearing node is effectively guaranteed by adding support and pin shaft testing inspection process;the production idea of the joint bearing node plate is mainly put forward, and the rest of the components are secondary, which is convenient for production and inspection. Mainly by controlling the production process of complex nodes of spherical bearings, the assembly accuracy and welding deformation of complex nodes of space spherical bearings are controlled, which ensures the quality of node production, improves the installation accuracy of plates, and obtains qualified quality installation accuracy, which provides reference experience for other similar projects.