LONG TERM MEASURING OF EXPANSIONS AND CONTRACTIONS OF PRE-STRESSED CONCRETE BRIDGE STRUCTURE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F15%3A00301732" target="_blank" >RIV/68407700:21610/15:00301732 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/15:00301732

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.714.201" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.714.201</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.714.201" target="_blank" >10.4028/www.scientific.net/KEM.714.201</a>

Result language

angličtina

Original language name

LONG TERM MEASURING OF EXPANSIONS AND CONTRACTIONS OF PRE-STRESSED CONCRETE BRIDGE STRUCTURE

Original language description

The presented paper considers approx. 5 years measurement on concrete railway bridge. The span is 39.875 + 34.877 + 37.000 + 9 x 31.500 m. The total length of the bridge is 443 m. Structure possesses typical three-box cross section. Monitoring was focused on temperature of concrete, temperature of atmosphere in the shade and mainly on measurement of movements of several bearings. Because the monitoring period of bridge structure was approx. 5 year, the probability p = 0.2 (5 years returning period) was chosen in order to compare measured data with standard values according to EN 1991-1-5. Of course, the standard value was assumed without any safety factor for this purpose. The maximal difference of measured and standard values was only 25 mm. This was achieved on the pillar where measured value of displacement range was 135 mm, standard value 160 mm and the dilatation length was 332 m. On the other hand, the minimal difference was only 3 mm on the pillar where measured value was 33 mm, standard value 36 mm and the dilatation length was 75 m. If the approx. 5 years measurement is compared with theoretical value of 5 years return period, the standard procedure cannot be classified as very conservative. It was shown that the long-time measurement is very important for the further development and improvement of the Eurocodes as well as statistical approach, i.e., returning time which shall be taken into account.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JM - Structural engineering

OECD FORD branch

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Project

<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Article name in the collection

Proceedings of the 17th Conference on the Rehabilitation and Reconstruction of Buildings (CRRB 2015)

ISBN

978-3-03835-719-3

ISSN

1013-9826

e-ISSN

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Number of pages

6

Pages from-to

201-206

Publisher name

Trans Tech Publications

Place of publication

Zurich

Event location

Praha

Event date

Nov 12, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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