- Problem 3 A Rectangular Combined Footing Carries The Given Tabulated Loads Exterior Column Size 300 X 300 Mm Pdl 268 1 (74.47 KiB) Viewed 24 times
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Problem 3 A rectangular combined footing carries the given tabulated loads Exterior column size (300 x 300 mm) PDL = 268 KN PLL = 268 KN MDL = 27 kN.m MLL = 27 kN.m Interior column size (375 x 375 mm) PDL= 490 KN PLL = 400 KN MDL= 40.5 kN.m MLL 40.5 kN.m PD=490 KN P₁= 400 KN 890 kN Mp=40.5 kN m M₂= 40.5 kN m 81 kN m 1.34m PD=268 kN P₁= 268 kN 536 kN 1.8m Mp=27 kN m M₁= 27 kN m 54 kN-m 4.6m 0,46m The total depth of the footing is 460mm with an effective depth of 376 mm. The bottom of the footing is 1.8 m below the final grade. Allowable soil pressure is 96 kPa. Unit weight of soil is 15.7 kN/m³ and that of concrete is 2400 kg/m³. fe' = 20.7 MPa, fy=414.7 MPa. The face of the exterior column is located on the property line. Distance between two columns, center to center is 4.6 m. Use 2001 NSCP Specs. Which of the following gives the dimensions of the rectangular combined footing. Which of the following gives the shear stress (punching) at the critical section near the exterior column. Which of the following gives the number of 28 mm o reinforcement needed along the longitudinal section of the combined footing. Use U= 1.4DL + 1.7LL