This document summarizes the design of a reinforced concrete pile with a diameter of 300mm. It calculates the loads on the pile from self-weight and a live load of 1617.2kN. The design load is calculated as 610.2651kN. Longitudinal reinforcement of 5 bars with 16mm diameter is required. Tie bars of 10mm diameter are needed at 150mm pitch. Spiral reinforcement of 10mm rod is specified at 30mm pitch for 900mm near the pile head and at 50mm pitch for 900mm near the pile end. Spacer bars and lifting holes of 32mm diameter are placed at 3000mm centers.
This document summarizes the design of a reinforced concrete pile with a diameter of 300mm. It calculates the loads on the pile from self-weight and a live load of 1617.2kN. The design load is calculated as 610.2651kN. Longitudinal reinforcement of 5 bars with 16mm diameter is required. Tie bars of 10mm diameter are needed at 150mm pitch. Spiral reinforcement of 10mm rod is specified at 30mm pitch for 900mm near the pile head and at 50mm pitch for 900mm near the pile end. Spacer bars and lifting holes of 32mm diameter are placed at 3000mm centers.
This document summarizes the design of a reinforced concrete pile with a diameter of 300mm. It calculates the loads on the pile from self-weight and a live load of 1617.2kN. The design load is calculated as 610.2651kN. Longitudinal reinforcement of 5 bars with 16mm diameter is required. Tie bars of 10mm diameter are needed at 150mm pitch. Spiral reinforcement of 10mm rod is specified at 30mm pitch for 900mm near the pile head and at 50mm pitch for 900mm near the pile end. Spacer bars and lifting holes of 32mm diameter are placed at 3000mm centers.
This document summarizes the design of a reinforced concrete pile with a diameter of 300mm. It calculates the loads on the pile from self-weight and a live load of 1617.2kN. The design load is calculated as 610.2651kN. Longitudinal reinforcement of 5 bars with 16mm diameter is required. Tie bars of 10mm diameter are needed at 150mm pitch. Spiral reinforcement of 10mm rod is specified at 30mm pitch for 900mm near the pile head and at 50mm pitch for 900mm near the pile end. Spacer bars and lifting holes of 32mm diameter are placed at 3000mm centers.
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DATA:
Diameter of pile= 300 mm
f ck = 30 N/mm 2 f y = 415 N/mm 2 Cover= 40 mm Depth= 6000 mm Live load= 1617.2 KN LOAD CALCULATION: Self weight of pile=(*d 2 *l*24)/4 = 10.1736 KN Total load= D.L+L.L = 1627.374 KN Load including impact factor=1.1*T.L = 1790.111 KN Service load on pile=T.L/4 = 406.8434 KN Design load= serviceload *1.5 = 610.2651 KN LONGITUCINAL REINFORCEMENT: P u = 0.4f ck *A g +(0.67f y -0.4f ck )A sc A sc = -892.8205 (Area never be negative) minimum reinforcement=0.0125*area of cross section A sc = 883.125 mm 2 dia of bar= 16 mm no of bars = 4.394531 therfore provide 5 nos LATERAL REINFORCEMENT(ties): Dia of rod= 10 mm volume of one tie= 69080 mm 3 if pitch of the tie is p the volume of pile per pitch length=.2%area of cross section *p = 488.8889 mm maximum permissible pitch= D/2= 150 mm Provide 10mm diameter bars ties at 150mm centres. LATERAL REINFORCEMENT NEAR PILE HEAD: spiral reinforcement is provided in the core of the pile head is DESIGN OF PILE 3D= 900 mm volume of the spiral per length=0.6 %of area of cross section = 423.9 mm 3 dia of rod= 10 mm ast of rod= 78.5 mm 2 circumference= 180 if the pitch of spiral diameter of spiral is p=cicumference of spiral*Ast of rod /volume of spiral p= circumference*A s /volume of spiral p= 33.33 mm provide 10mm diameter rod spiral at a pitch of 30mmc/c for a length 900mm near pile head LATERAL REINFORCEMENT NEAR PILE END: spiral reinforcement is provided in the core of the pile end is 3D= 900 mm volume of spiral= 69080 mm 3 dia of rod= 10 mm A S = 78.5 mm 2 if the pitch of spiral diameter of spiral is p= volume/6%0f cross section = 162.963 mm provide 10mm diameter rod spiral at a pitch of 50mmc/c for a length 900mm near pile end the spiral is enclosed inside of the main reinforcement SPACER AND LIFTING HOLES: Provide spacer in pair of steel using 32mm dia bar spacer at 3000mm centres Provide 32mm diameter holes at3000mm from pile end