PRESTRESSED HOLLOW CORE SLABS 200MM
Sectional Information
Cross-section area: 148,970 X 103mm2
Moment of inertia: 661,627 X 106mm4
Section modulus top: 6,579 X 106mm3
Section modulus bottom: 6,654 X 106mm3
Total breadth of webs: 468mm
Centroidal axis from bottom: 32,5mm
Conc. 28 day strength: 50MPa
Conc. strength at transfer: 35MPa
Mod. of elasticity of concrete: 34kN/mm2
Stressing of strand / wire: 70%
Check: stresses at transfer: OK
Cover to steel: 30mm
Structural Information
Standard Wiring Patterns
A = 8 X 5mm wires
E = 4 X 5mm wires + 8 X 9,53mm strand
B = 12 X 5mm wires
F = 12 X 9,53mm strand (over 7m span – 2 x 5mm top wire)
C = 9 X 5mm wires + 3 X 9,53mm strand
D – 7 X 5mm wires + 5 X 9.53mm strand
Load Capacity Table
Design loads include self weight, grouting between joints and finishes up to 1,5kN/m2.