Ground Support
Ground support refers to LED wall installations supported from the floor rather than hung from overhead rigging. Ground support frames use truss or custom structures with base plates and outriggers to stabilize free-standing LED walls. This method eliminates rigging point requirements but needs adequate floor space and weight capacity to safely support the display.
Ground Support LED Wall Systems
Ground support systems provide an alternative to flown LED installations, mounting displays on floor-standing frames. This approach solves many venue challenges while introducing its own considerations.
When to Use Ground Support
No Rigging Points: Venues without ceiling support capacity
Quick Installation: Ground support often assembles faster than flying
Lower Heights: Displays that don't need to be elevated significantly
Temporary Events: Trade shows, one-day events
Outdoor Sites: Parking lots, fields without overhead structure
Ground Support Components
Base Plates: Heavy steel plates distributing weight to floor
Vertical Towers: Truss or proprietary uprights supporting the display
Cross Bracing: Diagonal members preventing lateral movement
Outriggers: Extended feet providing stability base
Ballast Points: Attachments for counterweight
System Types
Truss-Based: Standard box truss configured as ground support
- Uses commonly available truss inventory
- Flexible sizing and configuration
- Heavier, more components
Proprietary Frames: Manufacturer-specific support systems
- Purpose-built for specific panel lines
- Often lighter, faster assembly
- Limited to manufacturer's panels
Stacking Systems: Panels stack directly on support base
- Simplest for short walls
- No overhead structure
- Height limited by panel stack strength
Stability Calculations
Ground support stability depends on:
Overturning Moment: Force trying to tip the structure
Stabilizing Moment: Weight and geometry resisting tipping
Safety Factor: Typically 1.5x or greater stabilizing vs. overturning
Factors affecting stability:
- Wall height and weight distribution
- Base width and outrigger span
- Wind load (outdoor installations)
- Seismic requirements (some regions)
Ballast Requirements
Ballast prevents overturning:
Type: Water barrels, sand bags, steel weights, or venue-provided counterweight
Amount: Follow manufacturer calculations—typically 50-100% of wall weight
Placement: Positioned on outrigger ends or base plate extensions
Security: Ballast must be secured against movement
Floor Loading
Ground support concentrates weight at limited points:
Point Loading: Calculate load per base plate
Floor Capacity: Verify venue floor can handle concentrated loads
Load Distribution: May need to spread loads with plates or plywood
Roll-Off Prevention: Secure casters if equipment must roll
Setup Process
1. Survey floor and mark layout 2. Assemble base structure 3. Install vertical supports 4. Add cross-bracing 5. Verify level and alignment 6. Hang/stack LED panels 7. Install ballast 8. Complete cable routing 9. Final safety inspection
Frequently Asked Questions
When should I use ground support instead of flying?
Use ground support when: overhead rigging points are unavailable or inadequate, venue prohibits flying, quick setup is required, or the installation is temporary and low. Ground support is often faster to install but requires more floor space.
How much floor space does ground support need?
Ground support typically requires 4-8 feet of depth behind the LED wall for the support frame, plus outrigger footprint. A 20ft wide wall might need a 24ft x 10ft footprint including stabilization. Check manufacturer specifications for your specific system.
Do ground-supported walls need ballast?
Yes, almost always. Even indoor walls need ballast to prevent tipping from accidental contact, vibration, or wind if near doors. Ballast weight equals or exceeds the weight of the upper portion of the wall. Follow manufacturer ballast requirements exactly.
Related Terms
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