GRP expands roughly 3x more than steel. In your sectional detail, you must leave a 5mm–10mm gap around pipe penetrations, sealed with a flexible boot. If you draw a rigid connection (GRP to steel directly), the tank will crack in summer.
This write-up explores the essential components, drafting standards, and practical applications of GRP water tank documentation in CAD environments. grp water tank autocad drawing
The AutoCAD drawing is used on-site to verify that the is level and that diagonal measurements are correct before fixing the tank panels in place. It also ensures that the tank's location accounts for underground utilities and local soil stability. GRP expands roughly 3x more than steel