Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge

Jiménez‐Alonso, Javier Fernando; Pérez-Aracil, Jorge; Hernández-Díaz, Alejandro Mateo; Sáez, Andrés

doi:10.3390/app9071374

Cited by 9 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different materials and types of decorative surfaces have different effects on the dynamic characteristics of floor slabs [174][175][176][177]. These effects should be considered in the calculations to modify the dynamic characteristics of the floors.…”

Section: Non-structural Layer Of Floorsmentioning

confidence: 99%

Structural Vibration Comfort: A Review of Recent Developments

Xie,

Hua

2024

Buildings

View full text Add to dashboard Cite

With continuous improvements in the social economy and living standards of individuals, the vibration comfort of building structures has gradually been emphasized by academic and engineering communities, such as vehicle-induced vibrations in buildings near traffic, human-induced vibrations in large-span structures, wind-induced vibrations in super-high-rise buildings, and machinery-induced structural vibrations. Comfort-based structural analysis is distinct from traditional safety-based structural analysis, and its theoretical systems and unified guidelines have not yet been established. This paper reviews recent research on structural vibration comfort, including major load categories and their impacts, comfort-based structural analysis, evaluation methods, and vibration-mitigation measures. By presenting the shortcomings of the existing research, potential topics for future study are suggested.

show abstract

Section: Non-structural Layer Of Floorsmentioning

confidence: 99%

Structural Vibration Comfort: A Review of Recent Developments

Xie,

Hua

2024

Buildings

View full text Add to dashboard Cite

show abstract

“…This presentation allows us, together with the frequency comparison, to select the appropriate modal pairs from experimental study and numerical analysis. When the MAC value is greater than 0.90, it is assumed that the compatibility of mode shapes is high [50,66].…”

Section: Theory Of Mode Shapes and Frequencies Validation Criteriamentioning

confidence: 99%

“…The creation of a numerical model that sufficiently reliably describes the dynamic properties of a real structure is a very complex issue [50]. It is due to a large number of unknowns at this stage, including estimation of the damping ratio, appropriate boundary conditions, modeling of joints, material properties, and the influence of non-structural elements on dynamic parameters of the structure [66]. Therefore, the best practice is the development of the numerical model, followed by dynamic field tests to confirm the assumptions.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Dynamics of Two Footbridges with Different Shapes of Girders

Banaś

Jankowski

2020

Applied Sciences

View full text Add to dashboard Cite

The paper presents the experimental and numerical results of the dynamic system identification and verification of the behavior of two footbridges in Poland. The experimental part of the study involved vibration testing under different scenarios of human-induced load, impulse load, and excitations induced by vibration exciter. Based on the results obtained, the identification of dynamic parameters of the footbridges was performed using the peak-picking method. With the impulse load applied to both structures, determination of their natural vibration frequencies was possible. Then, based on the design drawings, detailed finite element method (FEM) models were developed, and the numerical analyses were carried out. The comparison between experimental and numerical results obtained from the modal analysis showed a good agreement. The results also indicated that both structures under investigation have the first natural bending frequency of the deck in the range of human-induced excitation. Therefore, the risk of excessive structural vibrations caused by pedestrian loading was then analysed for both structures. The vibration comfort criteria for both footbridges were checked according to Sétra guidelines. In the case of the first footbridge, the results showed that the comfort criteria are fulfilled, regardless of the type of load. For the second footbridge, it was emphasized that the structure meets the assumptions of the guidelines for vibration severability in normal use; nevertheless, it is susceptible to excitations induced by synchronized users, even in the case of a small group of pedestrians.

show abstract

“…Nonlinearity usually arises in structural models [1,2]. In particular, materials such as reinforced concrete involve nonlinear stress-strain relationships in the mechanical model.…”

Section: Introductionmentioning

confidence: 99%

Parametric Iterative Method for Addressing an Embedded-Steel Constitutive Model with Multiple Roots

et al. 2023

View full text Add to dashboard Cite

In this paper, an iterative procedure to find the solution of a nonlinear constitutive model for embedded steel reinforcement is introduced. The model presents different multiplicities, where parameters are randomly selected within a solvability region. To achieve this, a class of multipoint fixed-point iterative schemes for single roots is modified to find multiple roots, achieving the fourth order of convergence. Complex discrete dynamics techniques are employed to select the members with the most stable performance. The mechanical problem referred to earlier, as well as some academic problems involving multiple roots, are solved numerically to verify the theoretical analysis, robustness, and applicability of the proposed scheme.

show abstract

Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge

Cited by 9 publications

References 17 publications

Structural Vibration Comfort: A Review of Recent Developments

Structural Vibration Comfort: A Review of Recent Developments

Experimental and Numerical Study on Dynamics of Two Footbridges with Different Shapes of Girders

Parametric Iterative Method for Addressing an Embedded-Steel Constitutive Model with Multiple Roots

Contact Info

Product

Resources

About