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Table 1 Effective slab width in code provisions and existing studies

From: Slab Reinforcement Contributions to Negative Moment Strength of Reinforced Concrete T-Beam with High Strength Steel at Exterior Beam-Column Joints

Codes/existing studies

Equations for \({{\varvec{B}}}_{{\varvec{e}}{\varvec{f}}{\varvec{f}}}\)

Parameters

Beam reinforcement

ACI 318 (2019)

b + Min (16ts, L0, Ln/4)

b, ts, L0, Ln

Normal-strength steel

Eurocode 8 (1996)

b + 4ts

b, ts

SNiP code (1997)

Min (L/6, b + 12ts)

b, ts, L

Durrani and Zerbe (1987)

b + 2 h

b, h

Pantazopoulou et al. (1988)

b + 6d

b, d

Zhen et al. (2009)

b + 4 h

b, h

Qi et al. (2010)

b + Min (Max(L/5, 3 h), L0/2)

b, h, L, L0

Ning et al. (2016)

b + 5.4 h

b, h

  1. b = web thickness, ts = slab thickness, h = beam height, d = beam effective depth, Lo = clear distance to the adjacent web, Ln = clear span, L = beam span