Lifetime-Maximum Load Effect for Highway Bridges Based on Stochastic Combination of Typical Traffic Loadings

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by Hiroyuki Kameda, Kyoto Univ, Japan,
Masakuni Kubo, Kyoto Univ, Japan,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability:

Abstract: An efficient and accurate method is proposed for probabilistic assessment of lifetime maximum load effect on highway bridges caused by traffic load. Probability distribution of the lifetime maximum girder response is derived in terms of a convolution from the 'main loading' and 'subsidiary loadings', the former being the effect of a heavy vehicle loaded immediately at the evaluated girder section, and the latter being the effect of a group of vehicles loaded at other locations along the same lane and neighboring lanes. It is demonstrated that the present method provides much higher computational efficiency than a recent improved method of direct Monte-Carlo simulation technique. It is also shown that the present method can be used easily with analytical load models, which allows one to develop theoretical insight of the probability distribution of lifetime maximum load.

Subject Headings: Vehicle loads | Maximum loads | Load factors | Load distribution | Highway bridges | Probability | Girder bridges | Live loads |

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