Section size and height: The cross-sectional dimension of the standard section is 1.6×1.6m, and each section has a length of 2.8m.
Main chord specification: The main chord is usually made of Q355B square tube with a size of 135×12.
Structural form: It is mostly an integral structure, welded by main chords, horizontal web members, diagonal web members, etc. Each section ensures good interchangeability through tooling.
Connection method: The standard sections are connected by 12 pieces of 10.9-grade M30 high-strength bolts, and the bolt pre-tightening torque must reach 1400N·m.
Internal facilities: The standard section is equipped with ladders for personnel to go up and down and platforms for rest, facilitating workers' operations and passage on the tower body.
Applicable models: It is suitable for tower crane models such as TC6012A-6A, TC5613-6, TC6016-6, H6012-6A, and TC6015A-6A.
Application in tower cranes: When the independent height of the tower crane is 40.5m, it is usually composed of 1 base section, 1 transition section, and 12 standard sections. When it is necessary to increase the height of the tower crane, standard sections can be added step by step through the jacking mechanism. Generally, the number of standard sections between two anchorage frames is 6 to 8.
