Question: An engineer issued revised foundation plans due to differing site conditions in a five-story office-building project. The foundation design was changed based on the newly

An engineer issued revised foundation plans due to differing site conditions in a five-story office-building project. The foundation design was changed based on the newly identified site conditions. The above variation resulted in a 20 - day delay in the critical path.

Considering the following figures, calculate the total value of variations based on NZS 3910:2013.

Previous work items Qty Unit New work items Qty Unit Excavation 30 m3 Excavation 45 m3 Concrete for bases 16 m3 Concrete for bases 28 m3 Formwork 56 ma Formwork 81 m2 Reinforcement 300 kg Reinforcement 850 kg Schedule of rates Item Rate Unit Excavation 20.00 NZD/m3 Concrete for bases 250.00 NZD/m3 Formwork 55.00 NZD/m2 Reinforcement 8.00 NZD/kg

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