Tower Crane Foundation Design Calculation Example Link Page

) usually eliminate the need for shear links, but checking is mandatory under structural codes like ACI 318 or Eurocode 2. Interactive Spreadsheets and Resources

For this example, let's assume the crane weight is 50 tons, the load weight is 10 tons, the wind load is 5 kN, and the seismic load is 2 kN.

The overturning moment acts at the base of the foundation. The horizontal force also creates an additional moment due to the thickness of the pad:

Use (1,570 mm²/m) top and bottom.

Area (A)=6.5×6.5=42.25 m2Area open paren cap A close paren equals 6.5 cross 6.5 equals 42.25 m squared

Calculate the required steel reinforcement based on the factored moment and shear. Reinforcement:

$$M = \fracq \cdot l^22$$ $$M = \frac130 \times (1.95)^22 = 247 \text kNm/m$$ tower crane foundation design calculation example link

Using the above values, the foundation design calculation can be performed:

$$q_max = \fracNA \left( 1 + \frac6eB \right)$$

Senior Structural Engineer Approved by: Geotechnical & Lifting Specialist ) usually eliminate the need for shear links,

For downloadable structural engineering spreadsheets and mathcad files matching international codes (ACI, EN), browse the .

Resisting moment = 150 x 4 x 1 = 600 kNm

Let’s walk through a simplified ultimate limit state (ULS) and serviceability limit state (SLS) verification for a standard square gravity pad foundation. Step 1: Establish Design Parameters Assume the following manufacturer data and soil parameters: 800 kN Overturning Moment ( ): 3,500 kNm Horizontal Shear Force ( ): 120 kN Allowable Soil Bearing Capacity ( qallq sub a l l end-sub ): 200 kPa ( Concrete Density: Step 2: Sizing the Concrete Pad Let's try a trial size for a square concrete block: Width ( ) & Length ( ): 5.5 m Depth ( ): 1.2 m Calculate Foundation Self-Weight ( Wpadcap W sub p a d end-sub ): The horizontal force also creates an additional moment