Probability Model of Hangzhou Bay Bridge Vehicle Loads Using Weigh-in-Motion Data

摘要: To study the vehicle load characteristics of bay bridges in China, especially truck loads, we performed a statistical analysis loads on Hangzhou Bay Bridge using more than 3 months weigh-in-motion data from site. The results showed that when all samples were included analysis, histogram vehicles exhibited multimodal distribution, which could not be fitted successfully by familiar single probability distribution model. When analyzed, characteristic multiple-peaked with main peak was obtained. weighting function five normal distributions and modeled distribution. demonstrated good fits histogram. histograms different time periods also analyzed. traffic mainly comprised two-axle small during rush hours morning evening, approximately three functions. And maximum value design life bridge predicted theory.