Theory and case study of vehicle load identification based on BWIM of steel truss bridge
|Veröffentlicht in:||Stahlbau, März 2013, n. 3, v. 82|
In China recent accidents involving sudden collapses of bridges have aroused great concern about real traffic loads and the loadbearing capacities of existing bridges. However, the proper management of such bridges relies on accurate information on bridge operating loads, which is essential for assessing correctly the operation and safety of bridges. Therefore, this paper proposes an integrated load identification system for operating traffic which is based on the characteristics of a steel truss bridge, i.e. the finite distribution of stress influence lines of suspender and orthotropic steel deck, and employs the BWIM (bridge weigh-in-motion) technique to establish the functional relationship between vehicle load and stress history as well as the functional relationship between axle load and stress history.
|Verfügbar bei:||Siehe Verlag|
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