Steel Beam Check · AISC 360-22

Simply supported W-shape, strong-axis bending. Flexure with lateral-torsional buckling and flange local buckling, shear, and deflection, with every equation shown on the calc sheet.

Chapters F2, F3, G2.1
283 W-shapes · AISC Shapes Database v15.0

Example loaded: an 18 ft beam replacing a load-bearing wall under a second floor. Change any input.

Member W-shape

Steel Method

Max nominal depth in, blank = any

Geometry

Span ft Trib. width ft

Compression-flange bracing

Loads

Floor dead psf Floor live psf

Line dead plf Line live plf

Point dead kips Point live kips

Point load location ft from left support Include beam self-weight

Deflection limits

Live L / Total L /

W12×19

—

Demand / capacity · bar marker at 1.00

Factored moment and shear

Member—

Span / bracing—

Method—

Governing D/C—

Checked against published AISC values

The calculation engine was tested against the AISC Design Examples (W18×50, 35 ft span, w_D = 0.45 klf, w_L = 0.75 klf) and Manual Table 3-2. Small differences come from AISC rounding C_b to two decimals.

Case	Quantity	AISC	This tool
F.1-1A · continuously braced	M_u / φM_n	266 / 379	266.4 / 378.8
F.1-1B · ASD	M_a / M_n/Ω	184 / 252	183.8 / 252.0
F.1-2B · braced at third points	C_b / φM_n	1.01 / 305	1.014 / 306.5
F.1-3A · braced at midspan	C_b / φM_n	1.30 / 288	1.299 / 287.6
Table 3-2 · W18×50	L_p / L_r (ft)	5.83 / 16.9	5.83 / 16.9
Table 3-2 · W21×48, noncompact flange	φM_n	398	397.9