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My Construction Photos > Structural ironworker on scissor lift uses short range radio to guide crane operator as the crane supports wide flange column section to be spliced on top of prevously erected column section. Ironworker is speaking into microphone of his chest mounted radio. Hisleft arm rests on the two splice plates of the connection between the two column sections. Ashley Terrace, AnnArbor, Michigan, 2007
My Construction Photos > Precast concrete tilt-up construction: Specialized lifting hardware for tilt-up wall construction by which crane can lift reinforced concrete walls from horizontal casting position to vertical position in wall. Primary hardware is steel lifting stud/anchor/bolt/plug, attached to reinforcing steel or wire embedded in concrete, as shown in circled inset, as it looks after lift is completed and hardware has been released. This is lifted by ground release lifting hardware consisting of a clasp/lock/grip that fits over the lifting stud/anchor and grips it while the attached lifting eye/bale applies lift. The lifting clasp/lock/grip has a release arm by which an attached rope/chain/cable is pulled down by worker on ground to release the lifting hardware from the wall after lift has been completed. A lifting clevis (red here) provides attachment to crane cable by which wall is lifted. Photo shows lifting hardware in place on right, before ground man has activated its release arm by pulling on attached release chain. To left is lifting hardware after its release from lifting stud/anchor. Phoenix, Arizona, November 2006.
My Construction Photos > Precast concrete tilt-up construction: Reinforced concrete wall section is pulled up at its top into near vertical position to form section of outside wall of building. As foreman on right signals crane operator to hold position of tilted up concrete slab wall section, workers inside and outside manually position bottom of section to sit on its foundation, forming corner with previously placed adjacent section. Worker on left holds up adjustable shore so it does not drag on ground/slab and impact positioning. Phoenix, Arizona, November 2006.
My Construction Photos > Concrete construction safety: Bobcat 763 skid steer tractor with pavement breaker attachment. Note the cockpit safety approach to provide equipment operator with roll-over protection and protection from side or rear impact with hostile construction environment. The operator is provided excellent visibility, in place of barrier type protection to his front, to deliver quality with productivity and safety. The operator is exposed to an extreme eye safety hazard by his failure to wear eye protection against chipped concrete. Massachusetts, 2002.
My Construction Photos > Bridge construction, steel construction: Erecting prefabricated panels of a Mabey steel truss panel temporary bridge over the Merrimac River on Route 113. Ironworker on top of erected panels guides crane operator, facing toward us, while ground man guides panel into place. Panels are connected by single driven pin at bottom and bolted connection at top. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel construction: An International dozer and a Dressta dozer both push on the erection end of the Mabey Bridge that will temporarily carry Route 113 vehicle traffic to allow rehabilitatrion of the adjacent steel truss bridge over the Merrimack River. Additional prefab panels will then be erected to lengthen the bridge, which then can be pushed out further. Cycle continues until bridge reaches west shore of Merrimack. Tyngsborough, MA 2005.
My Construction Photos > Bridge construction, steel construction: Erecting prefabricated panels of a Mabey steel truss panel temporary bridge over the Merrimac River on Route 113. Ironworker on top of erected panels guides crane operator, facing toward us, while ground man guides panel into place. Panels are connected by single driven pin at bottom and bolted connection at top. Tyngsborough, MA 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 > Bridge construction, steel construction: An International dozer and a Dressta dozer both push on the erection end of the Mabey Bridge that will temporarily carry Route 113 vehicle traffic to allow rehabilitatrion of the adjacent steel truss bridge over the Merrimack River. Additional prefab panels will then be erected to lengthen the bridge, which then can be pushed out further. Cycle continues until bridge reaches west shore of Merrimack. Tyngsborough, MA 2005.
Structural ironworker on scissor lift uses short range radio to guide crane operator as the crane supports wide flange column section to be spliced on top of prevously erected column section. Ironworker is speaking into microphone of his chest mounted radio. Hisleft arm rests on the two splice plates of the connection between the two column sections. Ashley Terrace, AnnArbor, Michigan, 2007
My Construction Photos > Structural ironworker on scissor lift uses short range radio to guide crane operator as the crane supports wide flange column section to be spliced on top of prevously erected column section. Ironworker is speaking into microphone of his chest mounted radio. Hisleft arm rests on the two splice plates of the connection between the two column sections. Ashley Terrace, AnnArbor, Michigan, 2007
Structural ironworker on scissor lift uses short range radio to guide crane operator as the crane supports wide flange column section to be spliced on top of prevously erected column section. Ironworker is speaking into microphone of his chest mounted radio. Hisleft arm rests on the two splice plates of the connection between the two column sections. Ashley Terrace, AnnArbor, Michigan, 2007
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