A Pad for the North Crawler Crane
Although the tower cranes will not arrive on site for a couple of months it is not too soon to begin work on the north side of the construction site where the north tower crane will be located. The future pad for this tower crane will be located where the current entrance to the Medical Center bends parallel to the construction site—see the featured photo for a depiction of its approximate location.
The realignment of the ingress and egress to the Medical Center entrance is crucial at this time to allow for the concrete trucks and pumps to have access to the north side of the site when the foundation sections are poured. (03.21.17) 🔨
Click on the following section link to learn how the pad for the north tower crane was created: A TEMPORARY HOSPITAL DRIVE REROUTE and TURNAROUND REALIGNMENT
03.13.17 – 1
By mid-March, it was time to put the fence up around the work areas that would be affected by the temporary hospital entrance reroute.
04.04.17 – 2
In less than a month, the reroute was completed and the eventual pad for the north tower crane was cleared and graded.
04.04.17 – 3
The vacant lot for the north tower crane pad as viewed from the south wall grade.
04.03.17 – 4
The approximate location of the crawler cranes that will loom large over the construction site for approximately two years. Rumor has it that the
cranes will be Liebherr 1750s.
04.04.17 – 5
The pad is cleared of all remaining asphalt and other debris. Although the section has been leveled, additional excavation will be done to build the base for the crane.
04.07.17 – 5
A view from the east of the crane pad, which was recently cleared for compaction and grading.
04.07.17 – 6
The same pad looking toward the east. The reason for the interest in this pad is due to the fact that the space in this photo will be revisited after the
huge crane is erected.
04.20.17 – 7
Excavation of what was part of the Medical Center Drive and will now become the north crane pad has begun. The work must be completed
before the second foundation pour, which is scheduled for Saturday night, April 29, 2017.
04.20.17 – 8
Part of the work to be done is digging up and pulverizing the concrete pilings that were used for the base of the street lights.
04.20.17 – 9
Before grading begins, the concrete around all shut-off valve casings must be chipped away in order to lower the casings to the new grade.
04.21.17 – 10
Grading has begun.
04.21.17 – 11
By noon, the survey stakes were delineating boundaries and elevations for final grading.
04.21.17 – 12
A 360-degree view of the north crane pad being leveled and compacted.
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what are the new structures on top of the rebar. Looks like a square bundle of rebar placed diagonally to the damper pin structures.
Simply stated, these are part of the overall seismic stability system designed by the structural engineers. Your question refers to what will be the concrete anchors for the viscous filled dampers, which are coupled with selected isolator bases assist in keeping the building stable horizontally. The dampers act much like shock absorbers whereas the isolator bases, which are connected to the pins that fit into the isolator sleeves aids in keeping the structure vertically stable. This description is for illustrative purposes only and do not purport to be an all inclusive description of the complete seismic damper system.
dEP
thanks Dennis
Thank you for your interest!
I don’t know if you realized in picture 04.03.17 – 4 you have two south crane locations
Great eye! Thank you for spotting the error. I needed to redo the photo since I had misidentified the type of crane. They will be crawler cranes not tower cranes. HEADS UP: You might be interested to note that on Monday, April 10, they will be installing a large BIGGE boom crane that will be on site to lift heavy equipment out of the pit and to assist in installing the larger Liebherr cranes when they come on site.
wow, no tower cranes.
No tower cranes, but the crawler cranes are massive. My understanding is that each crane comes with 36 trucks of parts and it takes a crane to assemble the cranes. It will be a spectacle to watch and photograph.