Load Rating

AI has load rated thousands of structures ranging from trusses, arches, post-tensioned concrete beams, rigid frames, pin and hanger systems and curved girder bridges. We also have the capability to analyze suspension and movable type bridges including 2D/3D structural systems for different types of loading (static or dynamic). Our engineers are experts in conducting Load Rating analyses with many different software applications including AASHTOWare (BrR, BrD), DESCUS, MDX, LARSA, and STAAD Pro. We also have experience using MIDAS, PS3, BRASS and other load rating applications. AI is very familiar with various state and federal guidelines, and understands the capabilities, strengths, and weaknesses of each software for more efficient analysis and rating results.


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