There are many difficulties in fabrication of steel tension rods with high tension strength and large diameter, such as the forging of the rod end,heat-treatment and surface painting etc The main technologies in the erection of the rods are: assembly and connection for the screw during the period of construction,the tension of steel rods to be processed, the seal for the connection of the screw.
本工程高强度大直径钢拉杆制作工艺难度较大,主要体现在杆体端部锻造镦粗、整体热处理和表面涂装等方面;现场施工的组装螺纹连接、张弦梁下弦钢拉杆的同步张拉、螺纹连接处的密封防护等对整个工程显得尤为重要。
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