Tower Crane Foundation Design Calculation Example Link [new] -

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Total Vertical Load (Ptotal)=Pc+Wf=850 kN+1,478.75 kN=2,328.75 kNTotal Vertical Load open paren cap P sub t o t a l end-sub close paren equals cap P sub c plus cap W sub f equals 850 kN plus 1 comma 478.75 kN equals 2 comma 328.75 kN This public link is valid for 7 days

Calculating the bending moment at the face of the crane mast to determine the required size and spacing of steel rebar grid at the bottom and top faces of the pad. Two-Way (Punching) Shear: Verifying that the Can’t copy the link right now

Provide T16 bars @ 150 c/c ($A_s = 1340 \text mm^2$, check local code minimums, usually T16 or T20 is standard for mass concrete). Let's provide T20 @ 200 c/c Top and Bottom mesh ($A_s = 1570 \text mm^2$). Top mesh is critical for the overturning lift force. Bottom mesh is critical for the soil bearing pressure.

, the shear span outside the critical section is small, and the concrete cross-section easily handles the structural shear force without stirrups.

: Collect technical data like tower height, jib length, and specific manufacturer reactions (moments , horizontal forces , and vertical loads Stability Checks Overturning : Calculate the stability moment ( cap M sub s t end-sub ) vs. the overturning moment ( cap M sub o t end-sub ). A typical factor of safety is : Ensure the resisting force from friction and weight ( ) significantly exceeds the horizontal sliding force. Soil Bearing