My Construction Photos > Steel erection fall protection: Structural steel ironworker on left has fall protection from full body harness attached to safety lanyard attached to steel cable loop/sling around girder as he moves from left to right along wide flange structural steel girderl Here, he liftis cable loop/sling past steel plate attachment that will support far end of a steel floor beam/joist. Ironworker on right his apparently without fall protection, with one safety lanyard attached from cable loop/sling that hangs loose and other end attached to lower ring on his body harness. However, his second lanyard could be attached to a sliding beam flange anchor attached to top flange of girder. Ross School of Business, University of Michigan, Ann Arbor. January, 2007.
My Construction Photos > Precast concrete bridge construction: Precast post-tensioned concrete module, tied cantilevered arch section bridge piers, described as V-piers, support structural steel bridge stringers/girders/beams. Sloped arch sections consist of hollow field-precast reinforced concrete segments (as shown in foreground) tied together by post-tensioned steel cables. Wood forms on top of pier are for cast in place pier cap and tie into two post-tensioned horizontal precast reinforced concrete tension tie beams that will carry the outward thrust of the two pier segments. Woodrow Wilson Bridge replacement, Potomac River between Virginia and Maryland, Capital Beltway, I-95/I-495. November 2006.
My Construction Photos > Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is an Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
My Construction Photos > Steel Construction: Bolted steel structural frame of steel wide flange columns, girders. Corrugated galvanized steel decking provides support for concrete slab floor. Ann Arbor, 2005.
My Construction Photos > Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 
120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is a Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
My Construction Photos > Precast concrete construction, bridge constrruction: Two Terex crawler mounted open web truss boom cable operated cranes lift 120 ft long precast, pretensioned prestressed bridge girder into place as bridge stringer. The red equipment in lower right-center is Elk River Hydras Steer trailer attached to right, rear end of bridge girder. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
My Construction Photos > Precast concrete construction, bridge constrruction: Kenworth truck tractor pulls a 120 ft long precast, pretensioned prestressed bridge girder from Grand Rapids, MI, to the Dixboro Bridge site. The red trailer with 3 axles supporting the far end of the girder is an Elk River Hydras Steer trailer attached to the end of the bridge girder. It includes steering, as demonstrated by its alignment to the left in photo, as well as brakes, all controlled by the truck driver in the pulling tractor, using control cables running on top of the girder from tractor to trailer. Dixboro Bridge over Huron River, Ann Arbor, MI, 2005.
My Construction Photos > fBridge construction, steel construction: Operator of Terex track mounted open web truss boom cable operated cranes lifts 120 ft long precast, pretensioned prestressed bridge girder into place as bridge Dixboro Bridge over Huron River, Ann Arbor, Michigan, April 2005
My Construction Photos > Renovation construction: Renovation of Burns Lawncare & Landscaping on Main Street, as seen from rear. Ann Arbor, Michigan, August 2005
Steel erection fall protection: Structural steel ironworker on left has fall protection from full body harness attached to safety lanyard attached to steel cable loop/sling around girder as he moves from left to right along wide flange structural steel girderl Here, he liftis cable loop/sling past steel plate attachment that will support far end of a steel floor beam/joist. Ironworker on right his apparently without fall protection, with one safety lanyard attached from cable loop/sling that hangs loose and other end attached to lower ring on his body harness. However, his second lanyard could be attached to a sliding beam flange anchor attached to top flange of girder. Ross School of Business, University of Michigan, Ann Arbor. January, 2007.
My Construction Photos > Steel erection fall protection: Structural steel ironworker on left has fall protection from full body harness attached to safety lanyard attached to steel cable loop/sling around girder as he moves from left to right along wide flange structural steel girderl Here, he liftis cable loop/sling past steel plate attachment that will support far end of a steel floor beam/joist. Ironworker on right his apparently without fall protection, with one safety lanyard attached from cable loop/sling that hangs loose and other end attached to lower ring on his body harness. However, his second lanyard could be attached to a sliding beam flange anchor attached to top flange of girder. Ross School of Business, University of Michigan, Ann Arbor. January, 2007.
Steel erection fall protection: Structural steel ironworker on left has fall protection from full body harness attached to safety lanyard attached to steel cable loop/sling around girder as he moves from left to right along wide flange structural steel girderl Here, he liftis cable loop/sling past steel plate attachment that will support far end of a steel floor beam/joist. Ironworker on right his apparently without fall protection, with one safety lanyard attached from cable loop/sling that hangs loose and other end attached to lower ring on his body harness. However, his second lanyard could be attached to a sliding beam flange anchor attached to top flange of girder. Ross School of Business, University of Michigan, Ann Arbor. January, 2007.
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