Determination of effective breadth and effective width of stiffened plates by finite strip analyses

Non-linear analysis of steel–concrete composite frames with full and partial shear connection subjected to seismic loads

“…Usually, the non-uniform distribution of longitudinal stresses or shear lag within a concrete slab due to shear strains is largely simplified by using the constant effective breadth (EB) concept [12,13]. Such an approach may lead to significant errors for composite beams under seismic loading, as the EB is not constant in the elastic case [26] and the stress redistribution into the slab leads to an enlargement of the effective breadth in the inelastic case [16].…”

“…Only few publications [7,8,11] dealt with static analysis of composite frames with partial shear connection all aiming at reducing the numbers of FEs per composite beam. No matter what kind of beam element type is exploited, some common modelling issues remain to be clarified in view of reliable and efficient frame analyses, such as: (i) the shear connection degree; (ii) the type of monotonic or cyclic shear force-slip law; (iii) the value of the effective breadth [12,13] of the concrete slab; (iv) the modelling of beam-to-column joints including column shear panels. All together, they represent basic aspects of the seismic analysis of composite systems and are the issues that the paper explores further.…”

Analytical effective width equations for limit state design of thin plates under non-homogeneous in-plane loading

“…Other theoretical and empirical expressions were also proposed by several authors taking into account various parameters affecting the effective width, e.g. Abdel-Sayed [21], Dawson and Walker [22], Narayanan and Chow [23], Vilnay and Rockey [24], Beedle [25], Galambos [26], Gaylord and Gaylord [27], Mohammadi et al [28], Wang and Rammerstorfer [18], Salem et al [29]. Lind [30], Roorda and Venkataramaiah [31] and Faulkner [32] compared various effective formulas that were proposed by several authors to compute the ultimate strength.…”

“…They presented results showing the variation of the buckling coefficients of plates with different boundary conditions. Wang and Rammerstorfer [18] used the finite strip method to investigate the parameters affecting the post-buckling stresses of stiffened panels.…”

Simplified method of analysis accounting for shear-lag effects in composite bridge decks

“…In 1974 Adekola [3] extended the partial interaction composite model of Newmark et al [4] to account for shear-lag effects in the slab. The use of the effective width concept was adopted by Sedlacek and Bild [5] and Wong [6] for the analysis and design of steel elements. The partial interaction composite model was extended to account for both shear-lag effects of the slab and the time-dependent behaviour of the concrete in [7][8][9].…”