GM Pontiac Northeast Corner Grade Beam Issue
STATEMENT OF PROBLEM During design of the site, civil designed for an exterior grading elevation which was higher than the top of the grade beam elevation at the NE corner of the building. At this location there is a narrow gap between the building grade beam and the ring road (about 3''''). Originally a curb was no…
GM Pontiac Toilet Room Basin Sinks
STATEMENT OF PROBLEM Incorrectly sized basin-style sinks were installed in the mens and womens toilet rooms, which created a code violation where the egress minimum width of 36" was impeded in the mens toilet room entrance way. The architect sized and placed the basin-style sinks at mens and womens locker rooms but …
GM Pontiac Press Pier Anchor Bolt Cans
STATEMENT OF PROBLEM During the design process CCC was provided with a Rotem drawing with several sheets detailing the press foundation requirements. An enlarged elevation called for a "can" cast into the pier to allow for bolting the press anchor rod (hand hole). The drawing showed the can height at 300mm. Howev…
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 Oily Wastewater Tank Design
STATEMENT OF PROBLEM For this project a new, welded steel oily wastewater tank was provided in the scrap tunnel in lieu of relocating an existing tank, at no cost to GM. The new tank shop drawings did not include for a manway. The shop drawings were submitted, reviewed, and approved by the EOR. The tank was fabri…
GM Pontiac Cooling Tower System Design
STATEMENT OF PROBLEM Before the cooling tower system was turned over to the plant, an oily sheen was discovered in the basins by GM. CCC mitigated the issue with oil socks but it was brought up by the plant on why the filter was not running/filtering the oil. This was because the filter is not meant to filter oil…
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 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 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…
GM Pontiac Tooling Cart Trenches Dimensional Error
STATEMENT OF PROBLEM During the revisions being made to the Rotem drawings, on revision 5 Rotem changed the width and depth for one of the two tooling cart rails for each tooling cart rail system located between the presses (4 sets of rails total). The trench for the rail became wider by several millimeters and deep…
