Contents: Experimental Study on Mechanical Properties of Shear Square Section Steel Tube Dampers; Ductile Fracture Investigation of High-Strength Steel SM570 under Low Stress Triaxiality; Development of Closed-Form Equations for Estimating Mechanical Properties of Weld Metals According to Chemical Composition; Combined Joint and Member Damage Identification of Semi-Rigid Frames with Slender Beams Considering Shear Deformation; Cyclic Performance of Structural Steels after Exposure to Various Heating–Cooling Treatments; Mechanical Properties of L-Shaped Column Composed of RAC-Filled Steel Tubes under Eccentric Compression; Wind-Induced Failure Analysis and Retrofit of an Existing Steel Structure; Analytical Solution for Longitudinal Anti-Push Stiffness of the Middle Tower of Cross-Cable Multi-Tower Cable-Stayed Bridge; Seismic Performance of Rectangular Hollow Section X-Joints Subjected to In-Plane Bending Moment