GM Pontiac Blank Receiving Roof Support Steel for HVU-1
STATEMENT OF PROBLEM During design of the building steel, 4 joists in the blank receiving bay were upsized to accommodate the weight of the blank receiving air handling unit (HVU-1; 17000#) in bay 22/23, based on JEG''''s input. Later in the design phase (50% MEP design), the mechanical engineer rotated and moved th…
Unknown As-Built Conditions
Statement of Problem: At bid time CCC received the 1950 Albert Kahn facility record drawings of the plant. This set had two foundation drawings, showing two different column foundation types for the plant. One drawing showed all footings, one drawing showed all caissons. It was unknown by GM which was the as-built c…
GM Pontiac Press Pit Lighting Fixtures
STATEMENT OF PROBLEM The lighting fixture designed for the press pit and tunnel lighting went through IBI and GM approval and the photometric calcs were discussed several times. However prior to installation, the electrical subcontractor realized that the fixture was not listed in GM OneSpec. Triangle notified CC…
GM Pontiac Stair Width Clearance Issue
STATEMENT OF PROBLEM The GM process team stated they wanted 36" wide clearance for all metal stairs in a design meeting. When IBI designed the stairs they made the tread 36" wide. However, the inner grab bars which project from the outer guardrail impede on that clearance (only 32" clearance). This was deemed a n…
GM Pontiac Guardrails and Bollards Design
: STATEMENT OF PROBLEM Guardrails and bollards design varies for each plant based on what the plant has for existing standard and what management wants to use. Because of this, there was confusion between the team members on the type of guarding that should be used/installed. For interior guardrails protecting …
GM Pontiac Overhead Doors System Design
STATEMENT OF PROBLEM The (3) blank receiving overhead doors for this project were desired to closely mimick the blank receiving doors at LGR stamping plant addition. However, it was unknown what all of the control features were or how they interfaced. It was only known that buried loops and traffic lights were re…
GM Pontiac Fire Alarm Design Review
STATEMENT OF PROBLEM The electrical subcontractor contracted Siemens to perform the fire alarm design. The drawings were submtited and reviewed by IBI and were also reviewed and approved by the city/fire department. However it was identified after the fact that the fire alarm drawings did not include smoke detect…
Coordination of Mechanical Equipment & Site Structural Support Pads
STATEMENT OF PROBLEM: A coordination meeting between structural/civil/mechanical was held for the outdoor air rotation units which sit on concrete pads. In the meeting JEG gave the required dimensions of the pad and stated the ARU & pad should be centered within the building column bay. The pads were then designed b…
Press Process Design Coordination with Facility Design
Statement of Problem: There were several issues to where the 2D press drawings provided by Rotem did not show enough detailed information for proper coordination. These included: 1) the press cable trays in pit 2) The platforms and ladders between the presses. 3) D/B team not having a useable press 3D model. …
GM Pontiac Column Coordination Log
STATEMENT OF PROBLEM Due to the amount of the utility drops at columns for this project being on the lighter side, a column coordination log was forgone and instead any and all column coordination was performed in regular 3D coordination meetings between CCC and its subcontractors. The primary reason for the colu…
