Transverse reinforcement optimization of a precast special roof element through an experimental and numerical procedure

Bernardi, Patrizia; Cerioni, R.; Michelini, Elena; Sirico, Alice

doi:10.1016/j.engstruct.2019.109894

Cited by 3 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Uniaxial-reinforced composite beams, anisotropic beams, wooden beams, tree branches, bones of young mammals, and railroad ties are all prone to fracture due to their low transverse strength [1][2][3]. In general, the practical approach to handling high transverse shear stresses is to use reinforcement stiffeners [4][5][6]. However, there are limitations on the efficiency of these structures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of a Cross-Section with a Constant Transverse Shear Stress Distribution Using a Numerical Approach

Bednarz

Mulligan

2019

ASI

View full text Add to dashboard Cite

A structural beam which is subjected to shear forces acting perpendicularly to its longitudinal axis will experience longitudinal and transverse shear stresses. In beams where failure in the transverse direction is plausible, it is desirable to maintain a constant transverse shear stress over the beam cross-section to avoid stress concentrations and to use the least amount of material. A numerical approach to the inverse problem of solving for a beam cross-section with a constant transverse shear stress distribution was investigated in this study using Microsoft Excel’s Solver and Matlab. The efficiency and shape of the developed cross-section were dependent on the number of elements used to discretize the cross-section. As the number of elements approached infinity, the shape of the cross-section became infinitely thin at the top and infinitely wide at the neutral axis, while also approaching an efficiency of 100%. It is therefore determined that this is an ill-posed inverse problem and no such perfect cross-section exists.

show abstract

Section: Introductionmentioning

confidence: 99%

“…If the cross-section can be expressed as a simple geometric shape, an alternate formula for Q is used as shown in Equation (4). The portion of the cross-section is drawn from the top down to where Q is calculated, A Q is the area and y is the centroid.…”

mentioning

confidence: 99%

Investigation of a Cross-Section with a Constant Transverse Shear Stress Distribution Using a Numerical Approach

Bednarz

Mulligan

2019

ASI

View full text Add to dashboard Cite

show abstract

Simulation methodology for the assessment of the structural safety of concrete tunnel linings based on CFD fire – FE thermo-mechanical analysis: a case study

Bernardi

Michelini

Sirico

et al. 2020

Engineering Structures

View full text Add to dashboard Cite

Experimental and Numerical Assessment of Flexural and Shear Behavior of Precast Prestressed Deep Hollow-Core Slabs

Michelini

Bernardi

Cerioni

et al. 2020

Int J Concr Struct Mater

View full text Add to dashboard Cite

The paper presents the results of flexural and shear tests up to failure on full-scale hollow-core slabs (HCS) having a depth of 500 mm. A detailed non-linear 2D finite element model is also developed to predict the stress distribution and crack pattern within the slabs, providing a well match with experimental results. Experimental and numerical results are compared with analytical calculations provided by Product Standard EN 1168, highlighting the inaccuracy of technical regulations in predicting shear behavior. The proposed numerical procedure is instead viable and sound for the design and the strength assessment of HCS, and can be extended easily to the analysis of whole floor systems.

show abstract

Transverse reinforcement optimization of a precast special roof element through an experimental and numerical procedure

Cited by 3 publications

References 13 publications

Investigation of a Cross-Section with a Constant Transverse Shear Stress Distribution Using a Numerical Approach

Investigation of a Cross-Section with a Constant Transverse Shear Stress Distribution Using a Numerical Approach

Simulation methodology for the assessment of the structural safety of concrete tunnel linings based on CFD fire – FE thermo-mechanical analysis: a case study

Experimental and Numerical Assessment of Flexural and Shear Behavior of Precast Prestressed Deep Hollow-Core Slabs

Contact Info

Product

Resources

About