Purlin & Girt Design — AISC 360-22

1. Design settings

Project

Member mark

Member type

Shape family

Section designation

Section type

I-shape (doubly symmetric)

2. Geometry & bracing

Span (L)ft

Tributary spacing (s)ft

Roof slope (θ)deg

Sag-rod lines (n)ea

Lb — gravity (top) (Lb,g)ft

Cb — gravity (Cb,g)

Lb — uplift (bottom) (Lb,u)ft

Cb — uplift (Cb,u)

3. Material

Yield stress (Fy)ksi

Tensile strength (Fu)ksi

Elastic modulus (E)

29,000 ksi

Shear modulus (G)

11,200 ksi

4. Service loads (ASCE 7-22)

Dead (cladding + services) (D)psf

Self-weight (auto) (wsw)

0.002589 kip/in

Roof live (Lr)psf

Snow (S)psf

Wind pressure (toward) (Wp)psf

Wind suction (away) (Wu)psf

5. End bearing & stiffeners (§J10, §G2)

Bearing length (lb)in

Stiffener spacing (0 = none) (a)in

Reaction delivery

6. Derived working values

Working span (L)

240 in

Minor span (Ly)

120 in

Lb gravity

60 in

Lb uplift

120 in

cos θ / sin θ

0.9659 / 0.2588

φb / φv

0.90 / 1.00

This tool is an engineering aid. The engineer of record must verify inputs, section properties and governing load cases. Excel report: Hand Calculation sheet is password-locked; watermark on all sheets except Summary and Input.