structural steel erection, bolt, weld, fall protection, ironworker, construction, cranes, structural, tower crane, erection crane, tie off, lanyard, body harness, safety line, man lift, connectors, mobile, boom, wide flange, angle, column, girder, plate, camber, spud, wrench, turn, nut, truss, gusset, chord, Manitowoc, Grove, Link-Belt, rough, terrain, hook, JLG, coon, pipe, arc, shop, field, drawing, bridge, frame, hot, rolled, section
Steel construction: Two man structural ironworker crew installs bolts for the splice of one structural steel H-column section above another. Both men are wearing fall protection: body harness with safety lanyard attached to previously erected structural steel. Note the prepunched holes in column flanges for bolting steel beams and girders during erection of remainder of the steel structural frame. Cardiovascular Center, University of Michigan, Ann Arbor 2004.
Steel construction: Two man structural ironworker crew installs bolts for the splice of one structural steel H-column section above another. Both men are wearing fall protection: body harness with safety lanyard attached to previously erected structural steel. Note the prepunched holes in column flanges for bolting steel beams and girders during erection of remainder of the steel structural frame. Cardiovascular Center, University of Michigan, Ann Arbor 2004.
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