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Understanding how helical, curved beams operate — how their spiral cuts accommodate angular and parallel misalignment, axial motion, and system vibrations — is the key to knowing how they will perform ...

Thomas Technik & Innovation (TTI), a pultrusion specialist, has collaborated with Shape, an US based Tier 1 supplier of metallic body structure components, plastic parts and bumper systems, on the ...

DEAR TIM: I’m getting ready to build a large room addition that needs a beam to support the floor joists. I’ve been told that a wood beam will work, but I’ve always seen steel I-beams in other houses.