Structural layout and reinforcement details for pile foundation of Building No. 70 in a redevelopment project. This drawing includes both 800mm and 1000mm diameter cast-in-place concrete piles with detailed section views.
Key Specifications:
– Concrete grade: M45 SSC with w/c ratio not exceeding 0.35
– Reinforcement: Fe-500 grade HYSD bars
– Pile specifications: 800mm and 1000mm diameter piles with socketing length of 8× pile diameter
– Reinforcement details: 12 nos of #20 bars for 800mm piles and 16 nos of #20 bars for 1000mm piles
– Helical reinforcement: #10@150mm c/c with 100mm clear and obvious cover
– Pile extension: 150mm into pile cap
The foundation layout indicates column positions (C1-C20) and load-bearing walls (LW1-LW9) with corresponding pile arrangements. The typical section shows the relationship between piles, pile caps, columns, and excavation levels. Corrosion protection is specified using CP293 corrosion inhibitor at 2kg/m³ of concrete.
