Tower Crane Foundation Design Calculation Example Link Jun 2026

Total vertical load including foundation: V_total = 1,200 + 1,350 = 2,550 kN.

First, calculate the total vertical load ( Vtotal ) and total moment ( Mtotal ) on the foundation:

First, calculate the dead weight of the concrete foundation pad ( Wfcap W sub f tower crane foundation design calculation example link

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Liebherr provides a free, certified foundation design program. 📍 Link: Search “Liebherr Foundation Designer” – This is the gold standard. Input your crane model + soil data, and it outputs reinforcement and bolt details. Total vertical load including foundation: V_total = 1,200

Consider the foundation as an inverted cantilever. Critical section at face of mast base plate (assume 1.5m × 1.5m mast plate). For a 6m pad, the overhang from mast face to edge = (6 - 1.5)/2 = 2.25 m.

(Two-way Shear): Punching shear is a critical failure mode where the concentrated load from the crane's steel baseplate pushes through the concrete slab. The foundation's thickness is designed to resist this. The shear strength of the concrete ( Vc ) must be greater than the applied shear force ( Vu ) from the crane's column. This calculation uses the concrete's tensile strength ( ft ) and the perimeter of the load area ( u_m ). Critical section at face of mast base plate (assume 1

Senior Structural Engineer Approved by: Geotechnical & Lifting Specialist

Calculate the amount of steel rebar required to resist bending moments and shear forces within the concrete itself. Calculation Formulas to Know

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Add top steel to control thermal cracking in mass concrete. 3. Tower Crane Foundation Design Calculation Example