Measurements of bridge dynamic amplification factor using bridge weigh-in-motion data

Jan Kalin (Avtor), Aleš Žnidarič (Avtor), Andrej Anžlin (Avtor), Maja Kreslin (Avtor)

Povzetek

The dynamic component of bridge traffic loading is commonly taken into account with a Dynamic Amplification Factor (DAF)—the ratio between the dynamic and static load effects on a bridge. In the design codes, this factor is generally more conservative than in reality. Recently a new method of cal- culation of this factor had been developed. Data from 15 different bridges have been analysed since then and this paper presents the results of the analyses. The background for Bridge Weigh-in-Motion is given, and the most recent method for DAF calculation is described. The sites from which the data originated are presented, and the selection of data discussed. The results of the analyses are presented and discussed and some examples of DAF calculations are shown. Data from the considered sites have invariably demonstrated a DAF decrease with increasing axle load. This is a significant result, especially for assessment of existing structures, since it is beneficial to use measured structural param- eters to optimise structural analysis.

Ključne besede

obtežba mostu;tehtanje med vožnjo z mostom;koeficient sunka;dinamična analiza;meritev;prometna obtežba;odprti dostop;bridge loads;bridge weigh-in-motion;dynamic amplication factor;dynamic analysis;measurement;traffic loading;open access;

Podatki

Jezik:	Angleški jezik
Leto izida:	2022
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	ZAG - Zavod za gradbeništvo Slovenije
Založnik:	Taylor & Francis
UDK:	624
COBISS:	54660867
ISSN:	1573-2479
Št. ogledov:	3
Št. prenosov:	2
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	obtežba mostu;tehtanje med vožnjo z mostom;koeficient sunka;dinamična analiza;meritev;prometna obtežba;
Strani:	str. 1164-1176
Letnik:	ǂVol. ǂ18
Zvezek:	ǂiss. ǂ8
Čas izdaje:	2022
DOI:	10.1080/15732479.2021.1887291
ID:	19550371