Evaluation of the shear capacity of precast-prestressed hollow core slabs: numerical and experimental comparisons

Seismic Performance of High-Rise Steel MRFS With Outrigger and Belt Trusses Through Nonlinear Dynamic Fe Simulations

“…Even though detailed brick-or shell-based FE models, commonly used in seismic analysis of steel and reinforced concrete structural systems and components [20][21][22][23][24][25][26][27], give more insight than equivalent mechanical idealizations, being able to reproduce their local response in terms of stress/strain concentrations, the computational time increases tremendously, requiring necessarily to take advantage of parallel processing on multiprocessor computers. Additionally, a detailed approach is currently almost unfeasible if the response of an entire mega-frame system has to be investigated.…”

Numerical web-shear strength assessment of precast prestressed hollow core slab units

“…In the last three decades, PPHC units have been extensively studied, experimentally [2,3,[26][27][28] and numerically [1,7,25,29,30], to understand and calculate the shear strength of these members, but no consensus has been reached on this issue [30,31]. In addition, the current design methods for shear resistance are derived from experimental results [32] and elastic theories [33,34] that are not usually directly related to the behavior at the ultimate limit state, which may be affected by many sources of nonlinearity and complex thermo-hygro-mechanical effects [35].…”

“…Therefore, this scenario contributes to some of the major uncertainties in the shear strength assessment of such members according to current design approaches, as already pointed out in the literature [2,3,[25][26][27][28][29]. As it will be discussed in the following, most of the current predictive methods are based on tests performed on members (i.e.…”

Numerical Model of a Reinforced Concrete Building: Earthquake Analysis and Experimental Validation

“…Finally, it is perhaps worth noting that alternative slab modelling strategies, such the one proposed by Brunesi et al in [48], consisting of the use of membrane/shell/solid elements avoid of locking phenomena and spurious energy mode (Nascimbene . Equivalent slab modelling configurations using truss element to consider axial flexibility of the floor [49,50], DellaCroce et al [51], Nascimbene and Venini [52]) or nodal constrains (Lanese [53]), were seen to lead to essentially identical results with respect to those shown above, obtained using instead an equivalent horizontal truss system.…”