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Study on residual stresses in truss-stiffened double steel plate built-up sections
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DOI：10.1016/j.jcsr.2026.110526.png)
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Abstract
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• Improved sectioning method characterizes residual stresses in full-scale L-shaped DSP built-up sections. • Identifies membrane-dominated plate stresses and weld-dependent tensile peaks as key mechanisms. • Welding-induced thermal effect eliminates SHS corner bending stresses and breaks cold-forming stress symmetry. • Experimental-numerical framework enables full-field prediction and a unified residual stress distribution model.
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