Girders Structural engineering 4 Materials 3 Structural frames 3 Vibration 3 Arches 2 Columns 2 more ... Mathematical models 2 Mathematics 2 Plates (Engineering) 2 Strains and stresses 2 Structural analysis (Engineering) 2 Axial loads 1 Bars (Engineering) 1 Beam cross section 1 Belt drives 1 Bolted joints 1 Brakes 1 Building materials 1 Building, Iron and steel 1 Buildings, Prefabricated 1 Cams 1 Chains 1 Civil engineering 1 Clutches (Machinery) 1 Cold working 1 Corrosion and anti-corrosives 1 Couplings 1 Cranes, derricks, etc 1 Damping (Mechanics) 1 less ...