Fairfax Subcontractor 3D Model Training
STATEMENT OF PROBLEM Many Subcontractors are not familiar with 3D Model design and/or design build. The limited pool of contractors who can bid GM work due to NMA and Safety Guidelines is very limited. Problem is learning curve to train subcontractors to build per model without the proverbial "shoving the require…
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…
Submittal/DCR Response Time
STATEMENT OF PROBLEM AE response time on submittals and DCRs not meeting expectation of contractor. Delays and schedule impacts; friction between parties. COURSE OF ACTION None LESSON LEARNED There were some issues during the early steel submitting, but after that the process went smoothly.
Cam Box Supports Issue
STATEMENT OF PROBLEM Drawings lack as installed detail regarding floor support at the cam box. lack of detail drives cost in additional material, work, and direction. COURSE OF ACTION None LESSON LEARNED Work with Press Engineers to gather detailed drawings of field fixes from previous install…
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…
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…
Tie Rod Pockets
STATEMENT OF PROBLEM Tie rod pockets are not included in basement floor layout. Tie rods extend above columns when setting crown. All 10 tie rods have to be guided by hand into the crown. SAFETY -personel must now be working above ground & under crown when it is being lowered. DAMAGE increased risk to tie rod thr…
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 …
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 …
Grout Drawings Notes Confusion
STATEMENT OF PROBLEM Notes for grout at rails etc. do not reflect as installed. Grout notes on drawings create confusion for installation contractors. It drives cost into the quote and wasted time in clarifications and instruction. COURSE OF ACTION None LESSON LEARNED AE to work more closely with Press Engin…
