1. What is Ground Bearing Pressure?

Ground Bearing Pressure (GBP) is the pressure exerted by a crane or heavy equipment on the ground surface. It's a critical safety parameter for Tadano cranes to prevent ground failure and ensure stability during lifting operations.

2. How Does the Calculator Work?

The calculator uses the GBP formula:

Where:

• \( Total\ Weight \) — Total weight of the crane including load (kg)
• \( Contact\ Area \) — Total contact area with the ground (m²)

Explanation: The formula calculates the pressure distribution by dividing the total weight by the contact area between the crane and the ground surface.

3. Importance of GBP Calculation

Details: Accurate GBP calculation is essential for determining if the ground can safely support the crane's weight during operations, preventing accidents, and ensuring compliance with safety regulations.

4. Using the Calculator

Tips: Enter total weight in kilograms and contact area in square meters. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is GBP important for Tadano cranes?
A: GBP determines if the ground can safely support the crane's weight during lifting operations, preventing ground failure and potential accidents.

Q2: What are typical GBP values for safe operations?
A: Safe GBP values vary depending on soil conditions, but generally range from 50-200 kPa for most construction sites.

Q3: How do I measure contact area accurately?
A: Contact area should include all outrigger pads or crawler tracks in contact with the ground, measured in square meters.

Q4: Does load weight affect GBP calculation?
A: Yes, total weight includes both the crane's weight and the lifted load weight for accurate GBP calculation.

Q5: When should GBP be recalculated?
A: GBP should be recalculated whenever the crane configuration changes, load weight changes, or when moving to different ground conditions.