Review of HL-93 Bridge Traffic Load Model Using an Extensive WIM Database

  title={Review of HL-93 Bridge Traffic Load Model Using an Extensive WIM Database},
  author={Cathal Leahy and Eugene J. OBrien and Bernard Enright and Donya Hajializadeh},
  journal={Journal of Bridge Engineering},
Abstract HL-93, the current bridge traffic load model used in the United States is examined here. Weigh-in-motion (WIM) data from 17 sites in 16 states containing 74 million truck records are used to assess the level of consistency in the characteristic load effects (LEs) implied by the HL-93 model. The LEs of positive and negative bending moments and shear force are considered on single- and two-lane same-direction slab and girder bridges with a range of spans. It is found that the ratio of… 

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