Construction Equipment: Haulers, Excavators, Loaders, Earth Moving, Concrete, Foundations, Steel Structures, Buildings, Roads, Bridges, Civil, Engineering, Workers, Underground, Asphalt, Safety, Trucks, Masonry, Cranes : Photo Keywords : building • concrete

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Manitowoc crane lifts precast concrete panel cladding panel into position on west side of midrise residential building. Worker on left pulls panel toward building with tag line and his hand and worker on right reaches out with 2x4 lumber to pull right side tag line so he can reach it. Ashley Terrace, Ann Arbor, Michigan April, 2007.

Crane lifts precast concrete panel cladding panel from vertical racks on truck trailer to place it in position on west side of midrise residential building. Ashley Terrace, Ann Arbor, Michigan April, 2007.

Manitowoc crane with luffing boom lifts precast concrete panel cladding panel into position on west side of midrise residential building. Ashley Terrace, Ann Arbor, Michigan April, 2007.

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.

Precast concrete tilt-up construction: Reinforced concrete wall section was pulled up at its top by crane into near vertical position to form section of outside wall of building. Worker uses impact drill to make hole in slab into which to bolt bracket that supports diagonal shore/brace to hold wall up until roof structure is in place. Phoenix, Arizona, November 2006.

Precast concrete tilt-up construction: Reinforced concrete wall section has been pulled up at its top into near vertical position to form section of outside wall of building. Wall section is heavily reinforced concrete that was cast in horizontal position on top of floor slab of building, which alleviated the need for wall forms. It is lifted by steel cable, hooked to wall at a 8 points to provide force sufficient to break wall free from the slab beneath it and lift it into its final vertical position. Two point support from lifting beams/ harness and pulleys provide independent support to each lifting point. Pipe with screw jacks at end align the wall and support it against wind forces. Workers 3, 5, and 6, from left to right, hold chain/cable with which they will jerk out pens locking the lifting cables to the slab wall, and they will next pull to withdraw pens to separate lifting tools from the wall. Phoenix, Arizona, November 2006.

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.

Crane moves concrete wall gang form into position. Visual analysis of form structure shows it is pieced together from 8 form panels. Already in place are the opposing side of the forms, reinforcing steel, and form bulkhead. The bulkhead forms a temporary construction joint, against which the next concrete will be placed, after which the bulkhead is removed so the following concrete can be placed against the last concrete placed. Ashley Terrace, Huron St, Ann Arbor, Michigan 2006

Two reinforcing ironworkers wire lower end of cable slings to reinforcing steel mat, with upper end wired to erection/lifting beam, for crane to lift and transport mat to build cast in place reinforced concrete basement wall. Ashley Terrace, Huron St, Ann Arbor, Michigan 2006

Manitowoc crane lifts precast concrete panel cladding panel into position on west side of midrise residential building. Worker on left pulls panel toward building with tag line and his hand and worker on right reaches out with 2x4 lumber to pull right side tag line so he can reach it. Ashley Terrace, Ann Arbor, Michigan April, 2007.

See photo in original gallery.

Canon EOS 5D |

More details: exif |

Original size: 1650x1238 |

Current: 800x600 |

Keywords: building structure construction crane april concrete michigan panel residential erect cladding precast ann arbor 2007 tag line ashley terrace erect cladding 8772

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