Architectural Precast Concrete
and Steel Stud Building Panels

Prefabricated Wall Panel Load Deflection TestingPrefabricated Wall Panel Load Deflection Testing

concrete wall exterior precast Test Results

Total Load DL+LL
lb/sq ft
Static Loading
lb/sq ft
Deflection Gauge #1 Bolted End Deflection Gauge #2 Concrete Deflection Gauge #3 Not Bolted
28 0 0.00" 0.00" 0.00"
79 51 0.15" 0.26" 0.19"
130 102 *A *B > 0.70" 0.55"

SlenderWall 8' x 16' panel tested in horizontal position

* A - Stud movement-first signs of bolted/welded stud end deformation first hairline cracks appear in concrete
* B - L/360 deflection exceeded

Wind Pressure Wind Speed Building Height Exposure Rating
50 lb/sq ft 150 mph 300 ft A
51 lb/sq ft 120 mph 300 ft B
48 lb/sq ft 100 mph 300 ft C
50 lb/sq ft 95 mph 300 ft D
52 lb/sq ft 110 mph 300 ft C
51 lb/sq ft 100 mph 300 ft D

* Provided for Comparison Only

Sound transmission test Water resistance test