Table 1 Some dimensions and specifications of structural parts.

From: Stress and strain analysis and parameter optimization of pipe truss tower connection of super-large tower crane based on FEM

Parameter

Numerical value

Parameter

Numerical value

Overall length of upper and lower joints (2L)

500 mm

Radius of fillet at root of joint boss (r2)

7 mm

Maximum joint diameter (D)

299 mm

Length of bushing (H)

259 mm

Joint boss root length (h1)

65 mm

Diameter of thin-walled end of bushing (Z)

235 mm

Joint boss root width (d1)

185 mm

Thickness of thin-walled end of bushing (X)

32 mm

Radius of upper fillet at root of joint boss (r1)

20 mm

Radius of fillet of inner ring surface of bushing (r3)

12 mm