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Steel Construction: erect, connect, bolt, weld, crane, fall protection, pipe, ironworker,

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
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Structural steel construction. Structural steel ironworkers weld rigid/moment connections on adjacent girders to support fifth floor of five floor building. Each is straddling girder. Two were raised into position by JLB hydraulic boom manlifts. The worker on left climbed ladder to get into position. A worker is walking top of girder in center of photo bringing tools/supplies to welder. None of the workers, or others on this project were wearing personal fall protection. Liberty Lofts, Ann Arbor, Michigan, February 2006
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Structural steel construction. Structural steel ironworkers weld rigid/moment connections on adjacent girders to support fifth floor of five floor building. Each is straddling girder. Two were raised into position by JLB hydraulic boom manlifts. The worker on left climbed ladder to get into position. A worker is walking top of girder in center of photo bringing tools/supplies to welder. None of the workers, or others on this project were wearing personal fall protection. Liberty Lofts, Ann Arbor, Michigan, February 2006

constructionmethodequipmentStructuralsteelironworkersweldJLBhydraulicboommanliftspersonalfallprotection.LibertyLoAnnArborMichiganFebruary2006welding0894

  • Structural steel construction. Structural steel ironworkers weld rigid/moment connections on adjacent girders to support fifth floor of five floor building. Each is straddling girder. Two were raised into position by JLB hydraulic boom manlifts. The worker on left climbed ladder to get into position. A worker is walking top of girder in center of photo bringing tools/supplies to welder. None of the workers, or others on this project were wearing personal fall protection. Liberty Lofts, Ann Arbor, Michigan, February 2006
  • Steel construction: Structural ironworkers work at several stations erecting and connecting two giant, steel trusses elevated 40+ feet above current floor elevation. All the ironworkers have fall protection from railings on elevated work platforms or from body harnesses and safety lanyards tied off to steel. UCLA, Los Angeles, CA, 2004.
  • Steel construction: Three man structural ironworker crew unhooks large, high steel truss from crane. All are wearing fall protection: body harness with safety lanyard attached by sliding clip to top flange of truss. UCLA, Los Angeles, CA, 2004.
  • Steel construction: Two leather clad structural ironworkers perform torch work on massive steel connection of large steel truss. Each is working off of a rope supported plywood temporary work platform about 50 ft in the air. Each ironworker has fall protection from body harness, safety lanyard, and tie off to top chord of steel truss independent of the work platform. Ironworkers working at height on a small temporary platform in the dark behind welding masks are in an extremely vulnerable situation that requires secure fall protection. UCLA, Los Angeles, CA, 2004.
  • Steel construction: Two structural ironworkers perform torch work on massive steel connection of large steel truss. They are working from the elevated platform of a scissor lift whose guardrails provide excellent fall protection. Note that the yellow steel at mid-right is part of the temporary support structure for the truss and not part of the permanent structural system. UCLA, Los Angeles, CA, 2004.
  • Structural steel construction: Link-Belt wheel mounted RTC rough terrain crane erects steel in construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Ironworker groundman loops sling around complex fabricated structural steel section, hooks sling to erection crane line hook, and helps guide beam as it is raised for structural steel frame in construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Boom of Link-Belt crane lifts and swings wide flange steel beam to erect steelin construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Ironworkers receive and set wide flange beam in erecting structural steel in construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Ironworkers bolt wide flange beam in position in erecting structural steel in construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Link-Belt wheel mounted RTC rough terrain crane erects steel in construction of YMCA, Ann Arbor, 2004
  • Structural steel construction: Steel erection nears competion. Link-Belt wheel mounted RTC rough terrain erection crane is in left background in construction of . YMCA, Ann Arbor, 2004
  • Structural steel construction: Two structural ironworker erectors place erection bolts for wide flange steel beam. Beam remains loosely attached to crane cable hook by sling, while ironworkers do erection bolting. Ironworkers are supported by JLG electric boom lifts that are controlled from worker platform. Ironworkers have personal fall protection from lanyards between body harness and lift guardrail. Biomedical Engineering, North Campus, University of Michigan, Ann Arbor, 2004.
  • Structural steel construction: Two structural ironworker erectors wait to receive next structural steel beam to erect. Workers are supported by JLG electric boom lifts that are controlled from worker platform. Terex truck mounted erection crane is in background, and we can see its truck bed and its driver side rear outrigger (red) extended to stabilize its base while lifting steel. Biomedical Engineering, North Campus, University of Michigan, Ann Arbor, 2004.
  • Structural steel construction: Structural steel ironworker leaves worker lift, climbs onto and straddles erected steel wide flange beam (girder), walks ("coons") lower flange, and guides crane supported wide flange beam into position to bolt in place. Ironworker's safety lanyard is not connected to any support while he moves on the steel. Once in position to receive the beam, he attaches a safety clamp onto top flange of beam, and he connects his safety lanyard (attached to his body harness) to the clamp for personal fall protection. (See inset detail in relevant photos.) Biomedical Engineering, North Campus, University of Michigan, Ann Arbor, 2004
  • Structural steel construction: Structural steel ironworker uses spud wrench (see inset detail). He first uses spud end to align bolt holes of girder connector plate and wide flange beam and then to temporarily support beam in proper alignment while he inserts bolt and twists on nut with his hand. He then tightens bolt with wrench end of spud wrench. Two bolts are installed before crane releases beam, and they provide interim support of beam until frame has been erected and plumbed and permanent bolts are installed. Biomedical Engineering Building, North Campus, University of Michigan, Ann Arbor, 2004.
  • Structural steel construction: Terex BT4700 telescopic boom truck mounted crane erecting structural steel. Biomedical Engineering, North Campus, University of Michigan, Ann Arbor, 2004.
  • Structural steel construction: Terex BT4700 telescopic boom truck mounted crane erecting structural steel. Outriggers (red) are extended to provide stability. Biomedical Engineering, North Campus, University of Michigan, Ann Arbor, 2004.
  • Piping construction: Caterpillar D5C XL crawler tractor with side mounted pipe layer boom and Deere 200C crawler mounted hydraulic backhoe support large bore steel underground steel pipe in trench with pipe slings. Workers are happy to help hold pipe in position. Dixboro Bridge, Ann Arbor, 2004
  • Construction welding: External pipe lineup clamp holds two large bore pipe sections in position for welding. Welder standing on right of pipe and welder on his back left of pipe (welding above his face) make initial electric arc weld stitching around pipe joint to hold joint in position for the first complete weld bead all around the joint (after lineup clamp has been removed). Dixboro Bridge, Ann Arbor, 2004
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