Effect of Spring-Mass-Damper Pedestrian Models on the Performance of Low-Frequency or Lightweight Glazed Floors
Abstract
:1. Introduction
2. Research Methods, Materials and Models
2.1. Selected Floor Systems
2.2. Selected SMD Models of Literature
2.3. Equivalent-Force Deterministic Model
3. Parametric Numerical Analysis
3.1. Modelling
3.2. Structural Performance Indicators
4. Discussion of Numerical Results
4.1. Floor Response
4.2. High-Mass Floor Sensitivity to Loading Strategy
4.3. Low-Mass Floor Sensitivity to Loading Strategy
4.4. Comparison of Low-Frequency and Low-Mass Floors
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Floor | Material | Span [m] | Surface [m2] | Frequency f1 [Hz] | Mass Ms [kg] | M/Ms |
---|---|---|---|---|---|---|
F#1 | Concrete | 5 | 30 | 11.05 | 10,350 | 1/130 |
F#2 | Concrete | 5 | 30 | 5.30 | 3530 | 1/44 |
F#3 | Glass | 14.5 | 40.6 | 7.28 * | 10,730 | 1/134 |
F#4 | Glass | 2.65 | 3.58 | 14.30 * | 320 | 1/4 |
Coefficient | fp (Hz) | |
---|---|---|
≤1.75 | 1.75 ÷ 2 | |
K1 | −8 fp + 38 | 24 fp − 18 |
K2 | 376 fp − 844 | −404 fp + 521 |
K3 | −2804 fp + 6025 | 4224 fp − 6274 |
K4 | 6308 fp − 16,573 | −29,144 fp + 45,468 |
K5 | 1732 fp − 13,619 | 109,976 fp − 175,808 |
K6 | −24,638 fp + 16,045 | −217,424 fp + 353,403 |
K7 | 31,836 fp − 33,614 | 212,776 fp − 350,259 |
K8 | −12,948 fp + 15,532 | −81,572 fp + 135,624 |
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Bedon, C.; Santos, F.A. Effect of Spring-Mass-Damper Pedestrian Models on the Performance of Low-Frequency or Lightweight Glazed Floors. Appl. Sci. 2023, 13, 4023. https://doi.org/10.3390/app13064023
Bedon C, Santos FA. Effect of Spring-Mass-Damper Pedestrian Models on the Performance of Low-Frequency or Lightweight Glazed Floors. Applied Sciences. 2023; 13(6):4023. https://doi.org/10.3390/app13064023
Chicago/Turabian StyleBedon, Chiara, and Filipe A. Santos. 2023. "Effect of Spring-Mass-Damper Pedestrian Models on the Performance of Low-Frequency or Lightweight Glazed Floors" Applied Sciences 13, no. 6: 4023. https://doi.org/10.3390/app13064023