Water Supply & Sewerage Design · Residential building

Water Supply and Sewerage Design: 9-Storey Building

Detailed water supply, sanitary sewerage and stormwater design for a nine-storey building, coordinated in 2D and 3D in ArchiCAD.

3D ArchiCAD model of the nine-storey cold and hot water supply network, with vertical risers, floor distribution and basement plant

3D ArchiCAD model of sanitary sewerage and stormwater drainage stacks, basement collectors and discharge points — 3D sanitary sewerage and stormwater model: stacks, basement collectors and discharge

Typical floor plan showing sanitary sewerage and drainage pipework through apartments, bathrooms and the central corridor — Typical floor: sanitary sewerage and drainage layout

Typical floor plan showing cold and hot water distribution to apartments from the corridor risers — Typical floor: cold and hot water supply layout

The challenge

A nine-storey building, including the ground floor and basement, needed a complete water supply, sanitary sewerage and stormwater drainage design that would perform hydraulically, be straightforward to install, and not inflate construction cost through oversizing.

Our approach

•Developed the water, sanitary and stormwater systems together in ArchiCAD so the 2D layouts and 3D coordination came from a single model, rather than separately drafted packages that would clash on site.
•Ran hydraulic calculations for all three systems and sized pipes from the actual design flows, then used those results to trim material where it was not earning its cost.
•Issued municipal submission drawings, a bill of quantities and construction details so the package could be approved and built from without further interpretation.

Scope of work

•Water supply system design
•Sanitary sewerage system design
•Stormwater drainage system design
•Hydraulic calculations for water supply, sanitary sewerage and stormwater drainage
•Pipe sizing and flow calculations
•2D and 3D technical design in ArchiCAD
•Detailed technical drawings and installation layouts
•Design optimisation to reduce unnecessary construction and material costs
•Bill of quantities and material specifications
•Technical documentation for municipal submission and approval
•Construction details for on-site execution

Outcome

•A coordinated 2D/3D package covering water supply, sanitary sewerage and stormwater, with hydraulic calculations, pipe sizing, quantities and construction details in one set.
•Design completed in 7 days, ready for municipal submission and site installation.

SoftwareArchiCADDuration7 days

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