GeneralLive Load Analysis
During an influence surface-based live load analysis, the stiffness matrix and active elements are captured at the selected stage, followed by the placement of a unit load on the roadway surface. The analysis then determines the influence surface coefficients that are used to assess the maximum load effect on the structure.
Transverse Lane/Vehicle Placement:
Upon receiving roadway dimensions from the user, OpenBrIM seamlessly manages lane placement in the transverse direction for influence surface-based live load analysis. In a 50-foot roadway, for instance, it can accommodate 4, 3, 2, or 1 lane(s), with multiple presence factors of 1.2, 1, 0.85, and 0.65. OpenBrIM rapidly explores these alternatives, shifting lanes by one foot in the transverse direction and assessing billions of potential configurations within seconds, thanks to its efficient, multi-threaded GPU-based architecture. Influence Surface 1 Fatigue Multiple Presence Factor Design LanesDesign Lane Option 1: Design Lane Option 2: Design Lane Option 3: Design Lane Option 4: |