Experimental dynamic analysis of the arch road bridge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00356846" target="_blank" >RIV/68407700:21110/21:00356846 - isvavai.cz</a>

Alternative codes found

RIV/67985556:_____/21:00563107

Result on the web

<a href="https://doi.org/10.1088/1755-1315/906/1/012061" target="_blank" >https://doi.org/10.1088/1755-1315/906/1/012061</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/906/1/012061" target="_blank" >10.1088/1755-1315/906/1/012061</a>

Result language

angličtina

Original language name

Experimental dynamic analysis of the arch road bridge

Original language description

The paper presents an experimental dynamic analysis of the existing road bridge across the Labe river at Valy village in the Czech Republic. The observed structure is a bridge with 6 spans 23.1 m, 31.5 m, 84.0 m, 31.5 m and 23.1 m long. The horizontal load-bearing structure is a composite structure with two main steel girders and a lower reinforced concrete deck. The load-bearing structure is reinforced in the main span by the arch. The experiment was realized in three stages. The first one was performed in May 2020 before its opening, the second stage of the described experiment was realized in August 2020 and the third one was carried out in April 2021. The main purpose of the first stage was to determine in detail the natural frequencies and mode shapes of the whole bridge horizontal load-bearing structure also including the arch. The electrodynamic shaker was used for excitation of the bridge vibration. The measured characteristics of the natural vibration were compared with the calculated ones. Basic objective of the second experiment stage was to verify new approach to dynamic response measurement - radar interferometry realized by two synchronized radars. The vibrations of the bridge caused by the standard road traffic and also by pedestrians were observed concurrently by both radar interferometry and classical approach realized by high sensitive piezoelectric accelerometers. The experiment was focused on the main span of the bridge only and the levels of forced vibration were observed primarily. However, the fundamental natural frequencies were also evaluated. The third stage was carried out by classical approach only. Again, the bridge vibration caused by the usual road traffic and pedestrians were measured in the main bridge span only. Again, the levels of forced vibration were observed and the fundamental natural frequencies were determined. The evaluated natural frequencies from all three experiment stages were consequently compared.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/VI20192022167" target="_blank" >VI20192022167: The advanced technology of rapid determination of bridges deformation by radar interferometry and its use in diagnostics</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

IOP Conference Series: Earth and Environmental Science

ISBN

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ISSN

1755-1315

e-ISSN

1755-1315

Number of pages

22

Pages from-to

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Publisher name

IOPscience

Place of publication

Madeira

Event location

Praha

Event date

Sep 6, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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