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Showing articles from Fairfax tag

EOL Elec Platform Beam Supports

STATEMENT OF PROBLEM Additional floor support is required to support the elec. platform. schedule delay as elec platform cannot be installed until floor is poured. COURSE OF ACTION Poured floor before installing platform (schedule delay). LESSON LEARNED Capture Pontiac AA0 solution and incorporate into drawi…

Surveying of Existing Buildings for Addition Projects

STATEMENT OF PROBLEM Many instances the as-built buildings the a new building addition ties into are not square, plumb, or columns may not be accurately spaced. Some instances roof line is also uneven. CCC did not perform all facets of conducting a "Thorough" Existing Building Survey. We spaced our columns on a g…

Scrap Conveyor System Information Issue

STATEMENT OF PROBLEM Sometimes we lack detailed information for scrap conveyor system (i.e. routing, sizes, clearances, etc.). Multiple iterations of engineering. COURSE OF ACTION None LESSON LEARNED Great upfront support. AE was provided with a scrap conveyor route and 3D model in the beginni…

Setting Tolerance Values Issue

STATEMENT OF PROBLEM Too tight/unrealistic to begin with; Should work with Press group as early as possible to meet agrreement; Contractor disagreed with tolerances although they were part of the contractor documents, no bid clarification question. Potential concern for fabrication and setting tolerances; meeting…

Missing Infill Steel

STATEMENT OF PROBLEM Ambiguity created between drawings, owner''''s intent, and contractor''''s understanding. The Ghafari drawings create some confusion between a general note on the plan vs. the intent on the details. As a result, neither the facility contractor or the press contractor included the erection of …

2D Vs. 3D Deliverable

STATEMENT OF PROBLEM Should the design been issued as a 3D deliverable, or was the 2D deliverable with 3D coordination model adequate? Disconnect between what was coordinated in the 3D model, the actual 2D contract documents, and what was constructed. COURSE OF ACTION Require 3D design LESSON LEAR…

Bus Duct Reuse

STATEMENT OF PROBLEM Disconnect between RE&F intent and what was stated on drawings. Increased cost of purchasing new bus duct. COURSE OF ACTION Purchased new bus duct (increased cost). LESSON LEARNED Work with AE to develop more clear expectations for reuse.

Roof Slope Tie In and Cricket Design Issue

STATEMENT OF PROBLEM All of the above factors did not export the best and most efficient design for the new 354 roof to tie into the existing 384 roof.  Existing slopes and drains were not engineered with actual site conditions taken into account. This type of situation is not easily noticed on paper or in a DIM …

Mechanical and Electrical Drawing Detail

STATEMENT OF PROBLEM Lacking detailed information for routing (i.e. elevations, dimensions, sections, etc.). Contractor claimed responsibility for system locations, which were already coordinated in 3D environment. COURSE OF ACTION None LESSON LEARNED Work with AE to develop a common understanding of expecta…

Broom Finish Bolster Area Oil Buildup

STATEMENT OF PROBLEM Broom finish allows oil buildup. Build up of oils create long term house keeping and safety issues. COURSE OF ACTION None LESSON LEARNED Use trowel finish as standard. Discuss with plants on a project by project basis.

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