L68B1 Mast Section Tower Crane Foundation Design Working Condition, foundation design, calculation and checking
Tower Crane Foundation design working condition should be calculated according to independent state The working condition is calculated according to the working state and the non-working state respectively. The working load of the Tower Crane Foundation includes the dead weight, lifting load and wind load of the Tower Crane and the foundation, and the variable load Coefficient is considered The load under non-working condition should include dead weight load and wind load of Tower Crane and foundation. Dynamic load should be considered in the foundation when the tower crane is lifting. The foundation design of tower crane should be calculated and checked according to the following rules:
1 The foundation of Tower Crane and the foundation and pile should meet the relevant rules of bearing capacity calculation;
2 when the Natural Foundation Bearing Foundation does not meet the following table, the foundation should be designed according to the foundation deformation.
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Note: 1. In the table, the main bearing layer of the foundation is 1.5 b under Tower Crane Slab Foundation, 36 B Under Cross Foundation, and the width of the foundation base is not less than 5 M in thickness. 2. When the foundation of tower crane is as follows, the foundation deformation should be checked: 1 when the ground near the foundation is loaded, it may cause the uneven settlement of the foundation; 2 when the adjacent buildings on the weak natural foundation are too close to each other, it may be inclined; The soft substratum or thick filling under the bearing layer of foundation.
L68B1 mast section is the best in this field
