吊车梁简介及技巧标准(国外英文资料).docVIP

吊车梁简介及技术规范(国外英文资料) Crane beam profile The beam that is used to carry the crane inside the factory is called a crane beam, which is usually installed in the upper part of the factory. A crane beam is a roadbed of a crane, and a crane is on the beam, and the crane is on the beam of a crane. The cross section of the beam is in the form of box and welding. Also have simple, use profile welding to form, commonly be reinforced concrete or steel structure. Design specifications and requirements for crane girders and crane trusses 1 welding crane beam flange plate appropriate USES a layer of steel plate, when two layers of steel plate is used, the outer plate should be along the long Liang Tong Settings, and in the design and construction measures should be taken to make the top flange closely contact with two layers of steel plate. It is not suitable for crane trusses and brake trusses. The truss of welding crane shall meet the following requirements: (1) in the truss node, the gap between the ventral pole and the string rod is not less than 50MM, and the two sides of the board are not less than 60M ?? The circular arc of the M; Node plate edge and the axis of CHS Θ Angle should not be less than 30. (figure 8.5.3-1); The joint welds of the nodal plate and the Angle steel string, the starting and landing arc points should be indented and reduced to 5MM (FIG. 8.5.3-la). Bamboo point plate and T H shape section chord docking should combined with Angle joint weld penetration, defects can not have ups and downs of arc arc, arc of the heavy duty crane truss should be polished, to that of the chord smooth transition (figure 8.5.3-1 b). Fill plate of bar (2) when using weld connection, the ups and downs arc welding seam point should be at least 5 mm indent (figure 8.5.3-1 - c), heavy duty crane truss rods fill board should adopt high strength bolt connection. ?? (3) when the truss rod is H shaped section, the node structure can be used in figure 8.5.3-2. ?? 4 crane beam wing weld