Prestressed Concrete Calculator

Design and analyze prestressed (pretensioned) concrete beams

Beam Properties

Prestressing Strands

Analysis Results

Strand Properties

Area per Strand:0.153 in²
Total Strand Area:1.224 in²
Initial Prestress (Pi):247.86 kips
Effective Prestress (Pe):198.29 kips

Section Properties

Area:288.0 in²
Moment of Inertia:13824 in⁴
St (top):1152.0 in³
Sb (bottom):1152.0 in³

Stresses at Transfer

Top Fiber:-861 psi
Bottom Fiber:2582 psi

Stresses at Service

Top Fiber:-689 psi
Bottom Fiber:2066 psi
Ultimate Moment (φMn):454.1 kip-ft