Cogwheel load: a new forced vibration test for bridges?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00547320" target="_blank" >RIV/68378297:_____/22:00547320 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s13349-021-00527-3" target="_blank" >https://doi.org/10.1007/s13349-021-00527-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13349-021-00527-3" target="_blank" >10.1007/s13349-021-00527-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cogwheel load: a new forced vibration test for bridges?

Popis výsledku v původním jazyce

A moving impulse load generated by a rolling heavy polygonal wheel with a constant velocity, called here the cogwheel (CW), could be used as a testing excitation for bridges. This type of dynamic load, already proposed in an earlier article, acts along the entire driving path, its intensity is adjustable, and it can be very efficient in the case of resonance. It is a combination of static and dynamic loading tests, which requires only one or a few transducers mounted on the bridge, and traffic interruption of only a few minutes. The dynamic response contains higher harmonic components, and the moving mass alters the dynamic properties continuously during the passage, which should be considered while assessing the condition of the tested structure. The high capability of indication of frequency changes is explained and demonstrated in a new scaled laboratory test. Suggestions for damage localisation are also made. It is foreseen for testing of short- and medium-sized bridges on the occasion of commissioning and periodical checks after further research.

Název v anglickém jazyce

Cogwheel load: a new forced vibration test for bridges?

Popis výsledku anglicky

A moving impulse load generated by a rolling heavy polygonal wheel with a constant velocity, called here the cogwheel (CW), could be used as a testing excitation for bridges. This type of dynamic load, already proposed in an earlier article, acts along the entire driving path, its intensity is adjustable, and it can be very efficient in the case of resonance. It is a combination of static and dynamic loading tests, which requires only one or a few transducers mounted on the bridge, and traffic interruption of only a few minutes. The dynamic response contains higher harmonic components, and the moving mass alters the dynamic properties continuously during the passage, which should be considered while assessing the condition of the tested structure. The high capability of indication of frequency changes is explained and demonstrated in a new scaled laboratory test. Suggestions for damage localisation are also made. It is foreseen for testing of short- and medium-sized bridges on the occasion of commissioning and periodical checks after further research.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GC21-32122J" target="_blank" >GC21-32122J: Monitorování stavu závěsné mostni konstrukce skenování vozidlem</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Civil Structural Health Monitoring

ISSN

2190-5452

e-ISSN

2190-5479

Svazek periodika

12

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

71-80

Kód UT WoS článku

000706936900001

EID výsledku v databázi Scopus

2-s2.0-85117045410