- 2018 Q 4 1 (55.22 KiB) Viewed 33 times
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2018 Q 4
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answerhappygod
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2018 Q 4
2018 Q 4
4. Pad foundation Design The isolated pad, figure Q4.1. is located on soil of an allowable bearing capacity of 150kN/m2 and the concrete is C35/45. The columns are 350x350mm, with characteristic loads as shown. Allow for a ground bearing slab 10kN/m² 900mm backfill (18kN/mº). Cover=40mm. a) Show that a 2.3x2.3m square pad foundation is adequate and will not exceed the bearing pressure? Allow for a 500mm deep pad. b) Calculate the required flexural reinforcement to (8 marks) (8 marks) c) Check the punching shear capacity of the pad? (8 marks) Total marks for Question 4: 24 marks g= 375kN 9=210KN Ground bearing slab 10kN/m? Backfill (18kN/mº). 500mm 900mm 2.30 Figuro Q4.1
4. Pad foundation Design The isolated pad, figure Q4.1. is located on soil of an allowable bearing capacity of 150kN/m2 and the concrete is C35/45. The columns are 350x350mm, with characteristic loads as shown. Allow for a ground bearing slab 10kN/m² 900mm backfill (18kN/mº). Cover=40mm. a) Show that a 2.3x2.3m square pad foundation is adequate and will not exceed the bearing pressure? Allow for a 500mm deep pad. b) Calculate the required flexural reinforcement to (8 marks) (8 marks) c) Check the punching shear capacity of the pad? (8 marks) Total marks for Question 4: 24 marks g= 375kN 9=210KN Ground bearing slab 10kN/m? Backfill (18kN/mº). 500mm 900mm 2.30 Figuro Q4.1
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