Scaffold was erected for the installation of pipe on a pipe rack, with only pipe fitters being consulted on the scaffold requirements. When the structural steel team was mobilized to install miscellaneous steel to support the pipe, they discovered the scaffold was 1½” too high. Both installation crews had to stand down while the scaffold was reworked to suit the requirements of both crews. Incurred costs included the remobilization of the scaffold crew, demobilization, and remobilization of the piping & structural crews, and 3 days lost from the schedule.
Avoid Scaffolding Rework
Each planner should coordinate all other interdependent IWPs when preparing the piping installation IWP.
This includes reviewing the scaffolding requirements with the other disciplines that need to work in the same area, even if their work does not directly impact the IWP.
When this is done properly, the scaffold is designed and installed for multi-discipline use, identifying and eliminating the issue.
When planning, it is important to include not only the requirements of installation crews, but the requirements of Commissioning & Start-up, and Operations as well. O3’s AWP Master Index helps identify interdependencies between packages and the Constraint Management component helps to identify constraints that may delay work packages and impact the schedule.
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