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My Construction Photos > Structural ironworkers guide precast hollow core concrete slab member onto its supports, beam on left and beam and seat angle on right. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 2007.
My Construction Photos > Structural ironworker uses tag line to manuever hollow core precast concrete slab section through steel structure members, a tight fit, which the ironworker on the right assists by prying the section to the left with a prybar. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 2007.
My Construction Photos > Structural ironworker supported by Genie scissor lift electric arc welds steel seat angle to flanges of wide flange H column structural steel to support corner of hollow core precast concrete deck member. Manitowoc crane supports the precast member, waiting for seat angle to be attached. Two ironworkers wait to guide precast member into place, after seat angle is ready, using rope tag line hanging from corner of member. Ashley Terrace, Ann Arbor, Michigan April, 2007.
My Construction Photos > Manitowoc crawler mounted lattice boom crane with luffing jib lifts hollow core precast concrete floor deck slab off flatbed trailer powered by Peterbilt semi tractor. Ashley Terrace, Ann Arbor, Michigan April, 2007.
My Construction Photos > Structural ironworker uses tag line to manuever hollow core precast concrete slab section through steel structure members to place it in its proper position. It is a tight fit, which will require the ironworker on the left to move the section a little to the left using a pry bar. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 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 > French residential/house construction: Typical French house construction. Concrete slab ground floor, hard-baked clay unit masonry block/brick, and timber roof framing, to be followed with strucco on exterior walls and hard-baked clay tile roof, as on neighboring houses. Central Canal, Burgundy, France September 2006.
My Construction Photos > Soil construction, concrete construction: Terex Bartell walk-behind power equipment. In foreground is a edging trowel to float and finish concrete slabs around columns, along walls, and in confined spaces. Right rear are two power trowels for concrete slabs. Left rear are two vibratory plate soil compactors, which operate at 5040 or 5800 cycles per minute. CONEXPO 2005, Las Vegas, Nevada, March 15-19, 2005.
Structural ironworkers guide precast hollow core concrete slab member onto its supports, beam on left and beam and seat angle on right. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 2007.
My Construction Photos > Structural ironworkers guide precast hollow core concrete slab member onto its supports, beam on left and beam and seat angle on right. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 2007.
Structural ironworkers guide precast hollow core concrete slab member onto its supports, beam on left and beam and seat angle on right. Precast member is supported by Manitowoc crane. Ashley Terrace, Ann Arbor, Michigan April, 2007.
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