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 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…
GM Pontiac Substation W Equipment Floor Loading Issue
STATEMENT OF PROBLEM CCC received the substation equipment shop drawings from GM late in the project, at end of July. In August CCC worked with GM on the rigging plan for hoisting the new substation equipment into the penthouse. IBI performed a structural analysis of the penthouse framing steel and the hoist beam…
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…
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 Process (Press) Design Drawings coordination with Facility drawings
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…
GM Pontiac Mechanical Equipment Control Wiring Design
STATEMENT OF PROBLEM There were significant delays in obtaining control wiring drawings from the mechanical subcontractor for the cooling tower, the ARUs, and the substation W HV units. This led to several delays with the electrical installation of the unit controls as the electrical subcontractor could not do an…
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…
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 …
