We are working on a complex project, which is a single building that has a number of phases of construction. Our current phase (Phase 3) is the base-build and the CAT-A fit-out. Basically, a shell and core that is finished to a standard that the building could be occupied. The next phase (Phase 4) is the tenant fit-out (CAT-B).
Phases 1 & 2 were site temporary works and site permanent works respectively.
The original intent was that the same contractor and design team would continue the next phase and it was my intention to create the works as a separate phase within the same Revit model. At final hand-over, the Client and tenant get a single model file for each discipline.
The Client has thrown a spanner in the works by deciding to tender Phase 4 as a separate contract with the same design team, but intending there to be a different Main Contractor. This means that the Phase 3 model has to be taken to Stage 5 (as-constructed) while the Phase 4 model is still at Stage 4 (for construction). For example, the Phase 3 MEP installations will have to be completed, tested, commissioned and warrantied by the original contract team before the Phase 4 contract team can touch them.
Key decision - do we develop Phase 4 as an entirely separate set of models, or do we continue with the original plan? The Phase 3 and Phase 4 models will impact each other, so the latter option involves us modeling changes twice (and there will be changes). Both options seem to come with some pain attached...
Of course, the current Main Contractor may just decide not to cooperate and may refuse to allow their model to be developed for Phase 4 at all..!
Phases 1 & 2 were site temporary works and site permanent works respectively.
The original intent was that the same contractor and design team would continue the next phase and it was my intention to create the works as a separate phase within the same Revit model. At final hand-over, the Client and tenant get a single model file for each discipline.
The Client has thrown a spanner in the works by deciding to tender Phase 4 as a separate contract with the same design team, but intending there to be a different Main Contractor. This means that the Phase 3 model has to be taken to Stage 5 (as-constructed) while the Phase 4 model is still at Stage 4 (for construction). For example, the Phase 3 MEP installations will have to be completed, tested, commissioned and warrantied by the original contract team before the Phase 4 contract team can touch them.
Key decision - do we develop Phase 4 as an entirely separate set of models, or do we continue with the original plan? The Phase 3 and Phase 4 models will impact each other, so the latter option involves us modeling changes twice (and there will be changes). Both options seem to come with some pain attached...
Of course, the current Main Contractor may just decide not to cooperate and may refuse to allow their model to be developed for Phase 4 at all..!
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