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Showing articles from GM tag

Lack of preparedness from Prime

Project Phase: Procedural Management Delivery Method: General Contract-Sub Prime was not prepared to execute project. Prime project team was not adequate (not enough qualified engineers and support staff). - Prime over extended.

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…

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. Howe…

Document Control Lacked by Prime

Project Phase: Procedural Management Delivery Method: General Contractor-Sub Document control lacked by Prime. Data storage, drawing log, punch list, etc....was not available.

GM LGR CMM Pit Infill Incorrect Shake Hardener Color

STATEMENT OF PROBLEM Concrete pour was cancelled after 20 yards arrived on site. Shake hardener color was incorrect. Color was not specified by the PM when ordering. Superintendent did not verify color of pour until morning of pour. The pre-pour checklist was incomplete. COURSE OF ACTION Pour reschedule…

GM Arlington Assembly Non-Conforming Work Poor Concrete Finish

STATEMENT OF PROBLEM Poor finish on exterior concrete. Exterior concrete batch error. There was clumping or balling of synthetic fibers on the interior slab. Post project review shows poor grading and compaction of sub-grade and excessive fibers protruding from the slab. COURSE OF ACTION Offered GM an e…

Cooling Tower Pump Room - Water Treatment Chemicals

Statement of Problem: The pump room design had insufficient containment for the two chemicals treating the cooling tower water. This led to a situation where if an accident were to happen and both drums were ruptured, the two incompatible chemicals could potentially mix and produce an adverse gaseous affect (chlo…

Clarification of Building Structural Steel Design Type

Statement of Problem: At bid time GM provided LGR structural reference drawings for their press bay addition. These drawings employed a single-column design concept with a cantilevered bracket to support the crane girders. However, nothing in the RFPS stated that Pontiac had to use a single-column design or copy …

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…

AE Submittal Return Process & Submittal Review

STATEMENT OF PROBLEM Throughout the job there were critical submittals CCC needed prompt reply on in order to complete work per the schedule. Submittals that were delayed (in this case most notably structural steel submittals) caused schedule delays for CCC in ordering materials/completing the work. While many su…

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