Greg Beeche, Logistics (GBL) provides Work Access Systems and services for a wide range of construction and
maintenance projects. Beyond solving unique access problems, high-performance ADT Work Access Systems are
fundamentally shaping the way the construction industry works. With over 20 years of experience, Greg Beeche
has the expertise required to help you safely and efficiently access your work.
ADT (Aluminum Double Track) is the
key to creating simple, strong, flexible structural assemblies, empowering our clients to
accomplish their work safely and efficiently. From simple
Davits and
Outriggers to dynamic
Whole Building
Systems for coordinating and moving men and materials, GBL is committed to providing
Work Access solutions which surpass all our clients' needs. Powered
Work Platforms, re-locatable
Workstations, mobile
Main Frames,
continuous
Monorail or
Roof Track Systems... With the ADT shape
there is no limit to where you can reach.
The freely traversing, fully rotating material handling capabilities of the
Beeche Mobile Boom Hoist makes it a perfect companion to GBL's
ADT-based equipment. The flexible nature of the Boom Hoist design allows GBL to provide a variety of
different types to suit each project’s specific needs. While simple in its design, the Boom Hoist is
sophisticated in its state-of-the-art
Engineering
and method of
Operating Control. The Boom
Hoist may be used on
Existing Tracks or
GBL-Engineered Tracks, as well as on
concrete floors, roofs, or other surfaces. Shipped substantially assembled, the Boom Hoist is easily
taken apart for
Hoist Car Transport and
reassembled at its final work destination.
The supply of a large quantity and variety of ADT-based equipment allowed this building’s tenants to
continue to occupy their rented spaces during construction on this recladding project. The dual-boom
Gantry visible in the foreground provided nearly 30 feet of reach beyond the face of the building.
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A custom ADT Structural Frame at the cantilevered corner of this building allowed for the installation of
a 2,900-pound corner panel with relative ease. The rig was sloped in two planes and was capable of
simultaneously supporting a wall panel and an associated Work Platform.
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At each face of this landmark skyscraper, 6-ft wide, 2-tier Work Platforms with overhead protection and
integrated monorails allow workers to easily handle and install specialized curtainwall panels. The panels
are hoisted and delivered to the platform using separate material hoisting carriages. Two carriages
service each platform, allowing work to proceed without interruption. Each panel is delivered from the
carriage to the platform in a nearly seamless manner, in preparation for final installation on its support
anchors.
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This ADT machine’s 15-ft reach allowed steel beams weighing up to 8,000 pounds, with lengths of up to 56
feet, to be hoisted from the street and installed on the face of this existing building as part of a
structural upgrade of its façade. Sophisticated electronics controlled the in-out traverse of the
hoisting ropes utilizing rack and pinion technology. In addition to the efficiency created by this ease
of maneuverability, controlling the location of the steel beams in this way was integral to overall
safety considerations, since men on adjacent Work Platforms were able to maintain safe position relative
to the beams during the entire process, from initial hoisting and positioning to final installation.
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Continuous 4-story tarp-enclosed Work Platforms with hard overhead protection were provided in order to
facilitate an expedited schedule for the demolition of the existing curtainwall on this high profile
recladding project. The massive Work Platforms were grouped into four 140-foot quadrants of five 28-foot
platforms each, and were relocated as required utilizing a sophisticated central “brain” which adjusted
for hoist speed discrepancies, wire rope variances, and a variety of other factors.
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A quadrant of five 4-story Work Platforms is shown rolling over a 7-story portion of newly installed
curtainwall. The enclosure tarps, designed to be easily raised and lowered, have here been lowered for
the duration of the relocation. The building’s columns and concrete slabs are visible where existing
curtainwall has been demolished at the topmost floors. Existing curtainwall yet to be demolished is
visible at the bottom portion of this photograph.
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This view shows the interior of a single tier of a continuous enclosed 4-story Work Platform. The massive
platforms essentially extend the floor areas of the building four floors at a time, providing comfortable
access to the building’s exterior.
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Repeating ADT Structural Frames allow Work Platform access up to the top of this roof’s screen wall.
Cores were drilled in the roof (and subsequently waterproofed), allowing steel tie-backs to be welded to
the structural roof steel, due to the sub-standard structural capacity of the old concrete roof. Custom
powered wire rope winders enabled efficient management of all primary and secondary suspension ropes for
this 500 foot tall building.
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A powered Work Platform rolls up and down along dual arched tracks in order to hug the profile of this
half-barrel vaulted skylight, providing Work Access for glass panel replacement. The entire dual-track rig
traverses along the full length of the skylight, riding along and spanning between existing window-washing
tracks at the top and bottom of the vault. As the platform travels up and down along the dual arched
tracks, the work surface remains level through the use of powered actuators.
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The truncated profile of the top of this high-rise presented a fundamental challenge to traditional panel
installation methods. GBL provided an inclined track system at the top of each façade, along which a
powered rig climbed or descended.
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This custom inclined track-traversing Structural Frame was utilized in multiple locations on a high-rise
with varying top-of-wall slopes. Interchangeable stilts were included as required to keep each rig level
at its wall location. This man-riding, material hoisting Carriage was designed with an integral boom
extension for laying its own track as it descended from its initial setup location.
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GBL’s steel Truss Frame Workstations may be designed to cantilever from concrete floor slabs. The
design of the slab attachment system allows the Workstation to be vertically relocated to alternate
locations on the building without the use of cranes or other external methods, as work needs change
or develop.
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GBL’s steel Truss Frame Workstations easily conform to custom profiles. This powered Workstation
provides full corner access for the entire height of this building.
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This large suspended Work Canopy staging area was designed to hold and store multiple heavy curtainwall
panels, allowing a large truck to be completely unloaded within a short timeframe. Dual-direction rolling
hoists allowed panels to be picked from any location under the Work Canopy. At an integrated catwalk
provided at canopy level, workers transferred panels to one of two hoisting areas, where vertical tracks
facilitated controlled delivery of the panels up to a full-perimeter Monorail System.
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A full-perimeter Monorail System allows curtainwall panels to be delivered to any location on this
irregularly-shaped high-rise. Here, multiple panels have been diverted into a perimeter inset pending
final installation. The monorail visible on the right continues around the outer perimeter of the building,
while the branch from which these two panels are suspended terminates at the inner corner of the inset.
The entire Monorail System was continuously relocatable vertically, using powered hoists which were
suspended from column-clamp outriggers. The outriggers themselves were periodically “jumped” as work
progressed up the building.
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Multiple adjacent panel installation methods come together at the top of this high-rise, as installation
approaches completion. On the right, the adjustable height continuous Monorail System has been raised to
its highest position on the building. For installation of the topmost panels, a rooftrack-rolling ADT tower
allowed for panels to be picked from the monorail below, and installed above and behind the monorail. Where
the building corners extended too far beyond the reach of the rooftracks, a section of davit-supported
monorail provided the extra height necessary to complete the “top of house” panel installation.
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This custom ADT-based Structural Frame was utilized in order to lift new permanent window-cleaning
equipment to the roof of this high-rise. Each package was raised in a controlled manner up to roof level
and then passed onto the roof using the powered pivoting boom design.
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The radically undulating façade of this new high-rise demanded that variable panel suspension locations
be accommodated. GBL provided a cantilevered double monorail, along which a rolling cross-beam “glider”
made possible an infinite number of suspension point locations, permitting access to any point on the wall
face.
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The slab edges and panel faces on this new high-rise vary in-and-out a distance of over 5 feet. The
cross-beam “glider” which rolls along the double monorail allowed for almost 6 feet of trolley-mounted hook
travel.
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The Beeche Mobile Boom Hoist’s freely traversing, fully rotating material handling capabilities make
it the perfect choice of machine in many situations. This variable-footprint version is specially designed
for the low floor-to-ceiling heights typical of residential high-rise construction. All Beeche Mobile Boom
Hoists are powered and radio-controlled. Shipped substantially assembled, the Boom Hoist is easily taken
apart for hoist car transport and reassembled at its final work destination.
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Sculptural shapes are increasingly becoming the norm in new building designs. The fully three-dimensional
profile of this building necessitated a variety of adaptable equipment designs, in order to provide access
to every curtainwall panel’s final installed position.
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Rooftrack-rolling ADT equipment follows the profile of the undulating glass façade of this building. This
equipment needed to have a greater than typical reach in order to allow for the installation of an unusual
3-foot thick climate wall. The Work Platform suspension point locations were adjustable, reflecting the
range in reach requirements dictated by the climate wall design.
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ADT-based custom Workstations create large areas from which work can be staged or multiple tasks completed.
This workstation featured powered traverse along ADT monorails attached to the roof structure, as well as
powered raising and lowering. Small ancillary Work Platforms provided worker access to and from the larger
Workstation.
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GBL has designed a number of Panel Manipulators, capable of lifting panels from an initial stored position,
rotating them in all three planes, and delivering or installing them as required. Here, a Panel Manipulator
is shown installing custom panels at this building’s sloped “birdsmouth” corners.
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The rotating boom design of this “Corner Access” Mobile Structural Frame allows workers to literally reach
around obstructions, such as this building’s large concrete corner columns.
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