The influence of vibration duration on the structure of irregular RC buildings

Pachla, Filip; Kowalska-Koczwara, Alicja; Tatara, Tadeusz; Stypuła, Krzysztof

doi:10.1007/s10518-018-00546-4

Cited by 16 publications

(12 citation statements)

References 42 publications

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“…Low-intensity para-seismic events (mining tremors) can also generate a similar impact on humans as vibrations from road traffic. Research on this topic of residential and office buildings was presented by, among others, [40][41][42]. In these works, the permissible norms for vibrations of low intensity (comparable to road vibrations) were not exceeded, but the vibrations were so burdensome that they interfered with the living conditions of residents.…”

Section: Of 17mentioning

confidence: 99%

Influence of Traffic-Induced Vibrations on Humans and Residential Building—A Case Study

Bęben

Maleska

Bobra

et al. 2022

IJERPH

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The case study presents an assessment of the traffic-induced vibrations on humans and residential buildings, which is important for sustainable development. The analyzed residential building had several cracks in the walls. Control gypsum tapes were applied to all cracks in the building and additional elements near the road to determine the propagation of the damage. To determine the harmfulness of vibrations for humans, vibration acceleration measurements linked to road traffic inside the analyzed building were carried out. The vibration velocities inside the object were set based on the integration of the obtained accelerations. The experimental field investigation was carried out in places where humans commonly stayed (on the first floor) at the points where the vibrations are transmitted from the construction to humans. The study involved a time history analysis, a Fast Fourier Transform (FFT) analysis, and Root Mean Square (RMS) acceleration and velocity in a one-third octave bands spectrum. Based on the conducted experimental tests, it can be pointed out that the received velocity values in the tested building, caused by the passage of various vehicles, were below the permissible levels. However, it was noticed that the distance between the building and the fence had an important role in damping vibrations emitted by passing vehicles. The presented case study may be of use to other researchers who will be involved in similar cases and want to include sustainable infrastructure development.

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Section: Of 17mentioning

confidence: 99%

Influence of Traffic-Induced Vibrations on Humans and Residential Building—A Case Study

Bęben

Maleska

Bobra

et al. 2022

IJERPH

View full text Add to dashboard Cite

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“…This problem is approached with a Finite Element Analysis (FEA) by using the wellknown and extensively validated commercial software DIANA FEA 10.3 [19][20][21][22][23][24]. The main adopted hypotheses for setting up the model are listed below:…”

Section: Model Set-up and Adopted Hypothesesmentioning

confidence: 99%

Crownwall Failure Analysis through Finite Element Method

Dermentzoglou

Castellino

Girolamo

et al. 2020

JMSE

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Several failures of recurved concrete crownwalls have been observed in recent years. This work aims to get a better insight within the processes underlying the loading phase of these structures due to non-breaking wave impulsive loading conditions and to identify the dominant failure modes. The investigation is carried out through an offline one-way coupling of computational fluid dynamics (CFD) generated wave pressure time series and a time-varying structural Finite Element Analysis. The recent failure of the Civitavecchia (Italy) recurved parapet is adopted as an explanatory case study. Modal analysis aimed to identify the main modal parameters such as natural frequencies, modal masses and modal shapes is firstly performed to comprehensively describe the dynamic response of the investigated structure. Following, the CFD generated pressure field time-series is applied to linear and non-linear finite element model, the developed maximum stresses and the development of cracks are properly captured in both models. Three non-linear analyses are performed in order to investigate the performance of the crownwall concrete class. Starting with higher quality concrete class, it is decreased until the formation of cracks is reached under the action of the same regular wave condition. It is indeed shown that the concrete quality plays a dominant role for the survivability of the structure, even allowing the design of a recurved concrete parapet without reinforcing steel bars.

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“…First, the area disturbed by a quake is smaller in case of mining shocks than natural events [11]. Second, the duration of the intensive phase of vibration is shorter for mining tremors [12]. Third, in the case of mining events, the dominant frequencies are located in the range of 2-30 Hz.…”

Section: Introductionmentioning

confidence: 99%

Two-Step Finite Element Model Tuning Strategy of a Bridge Subjected to Mining-Triggered Tremors of Various Intensities Based on Experimental Modal Identification

2021

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In this paper, a two-step tuning strategy of a finite element (FE) model of a bridge with pot bearings exposed to mining-triggered tremors of various intensities is proposed. In the study, a reinforced concrete bridge 160 m long is considered. Once the modal identification of the bridge was experimentally carried out based on low-energy ambient vibrations, the FE model was tuned by replacing the free-bearing sliding with a Coulomb friction-regularized model. This model of friction split the tangential relative displacement rates between contacting surfaces into a reversible elastic part and irreversible sliding. The elastic microslip (spring-like behavior) prior to macrosliding can be explained by the deformation of asperities (roughness of contacting surfaces on the microscopic scale). The proposed model allows for accurate sliding bearing performance simulation under both low-energy and high-energy mining-induced tremors. In the first step of the FE model tuning strategy, the elastic microslip constant was experimentally estimated based on the modal identification. In the second step, the macro-sliding friction parameter was implemented to address the realistic behavior of the bridge under mining-induced shocks. Finally, the dynamic responses of the bridge to mining-triggered tremors of various intensities were calculated and assessed using the untuned and tuned FE models. The analysis proved that the untuned model was not suitable for dynamic bridge assessment in the case of low-intensity tremors. The stresses obtained for this model turned out to be strongly underestimated. For shocks of higher intensity, frictionless sliding at the bearings gives a relatively good global estimation of the structure performance but undervalues its local response. The analysis also reveals that the tuned Coulomb friction-regularized model allows for the accurate simulation of sliding bearings under both low and high-energy mining-induced tremors.

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The influence of vibration duration on the structure of irregular RC buildings

Cited by 16 publications

References 42 publications

Influence of Traffic-Induced Vibrations on Humans and Residential Building—A Case Study

Influence of Traffic-Induced Vibrations on Humans and Residential Building—A Case Study

Crownwall Failure Analysis through Finite Element Method

Two-Step Finite Element Model Tuning Strategy of a Bridge Subjected to Mining-Triggered Tremors of Various Intensities Based on Experimental Modal Identification

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