Design a footing to support a BRICK wall with a dead load D= 120 kN/m and a live load L= 70 kN/m, the allowable soil pressure, qo, is 120 kN/m², f,= 400 MPa and f = 25 MPa, normal-weight concrete. Assume wall thick is 250 mm and footing thickness is 300mm and bar diameter is 16mm. %3D %3D 20 a) Find footing DEPTH according to shear equations 20 b) Design the main reinforcement for the footing

Design a footing to support a BRICK wall with a dead load D= 120 kN/m and a live load L= 70 kN/m, the allowable soil pressure, qo, is 120 kN/m², f,= 400 MPa and f = 25 MPa, normal-weight concrete. Assume wall thick is 250 mm and footing thickness is 300mm and bar diameter is 16mm. %3D %3D 20 a) Find footing DEPTH according to shear equations 20 b) Design the main reinforcement for the footing

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Design a square spread footing to support an edge column 460mm x 460mm in dimension. The allowable soil pressure is 478.5 KPa, unit weight of soil is 20.4 KN/m³, unit weight of concrete is 23.5 KN/m³, fó= 21 MPa, fy = 414 MPa, 75mm clear cover and 25mm diameter rebars both ways. DL= 1070 kN & LL = 1410 KN DL LL 150mm concrete slab 1.50 m
Design a square reinforced concrete footing to support a 20-inch square tied concrete column at the edge of the building as shown below. Also check development length and force transfer in the column and at the footing. Draw the reinforcement pattern. Use a footing thickness of 24". Assume the following design conditions: -service dead load= 270 kips -service live load= 135 kips -allowable soil pressure (q)= 5000 psf -f. for the column= 5000 psi -f. for the footing= 3000 psi -fy= 60000 psi -longitudinal column steel consists of #8 bars reinf cement is uncoated -unit weight of the soil is 125 lb/ft3 -normal weight concrete Finished ground line 20" square column Y = 125 lb/ft³ 5'
Design a square pad footing with an overall depth of 600mm, cover to the reinforcements 50mm with 20mm diameter reinforcement bars in both directions. The footing carries a 400mm square column with a dead load of 1050KN and imposed load of 300KN. The safe bearing capacity of the soil is 170KN/m^2, fcu 30N/mm^2. Assume a unit weight of concrete to be 24KN/m^3 and footing weight 150KN
A footing supports a 200mm thick concrete wall. Wall loads: = 175 Dead Load kN/m = 89 Live Load kN/m = 20.6 Concrete, f'c MPа = 415 Steel, fy MPа %3D Unit weight = 23.6 of concrete kN/m3 Factored :1.2D %D load + 1.6L combination Thickness %3D of footing 350mm Steel Cover ( bottom of footing to centroid of 90mm bars) The gross allowable soil pressure is 100 kPa and width of the wall is 200mm. Assume that the top of the footing is at the ground level. A) What should be the width (m) of the footing so that the allowable soil pressure will not be exceeded? (Dimensions in multiples of 50mm) B) Check the adequacy of the footing for Beam Shear considering 1m strip C) Calculate the required spacing reinforcements for diameter 16mm main bars and 10mm shrinkage and temperature bars.
A footing of size 2.5 m x 2.5 m and 500 mm thick resists characteristic axial loads of 800kN dead and 300 kN imposed from a 400 mm square column. The safe bearing pressure on the soil is 230 kN/m2 and the characteristic material strengths are fcu = 35 N/mm2, fy=460N/mm2. Density of concrete is 24 k N/m3. Cover to all reinforcement is 50 mm. Determine the design load b) Check whether the base pressure is safe c) Design the bending reinforcement, assuming 16 mm diameter bars.
5 P Question 1 of 8 Determine the number of 6meters - 12mm. steel bars required if there are 10 footings with a general dimensions of 1.50 x 1.50 meters. Show your solution. 1,50 m -1.35 m.- -7.5 cm 1.50 m. 7.5 cm 12 mm steel barn
SITUATION. A 3 mx 3 m square spread footing is to support a 350 mm x 350 mm column carrying a dead load of 750 kN and live load of 500 kN. For concrete f'c is 21 MPa and for steel, fy is 415 MPa. If the effective depth of the footing is 500 mm, find the number of 25 mm reinforcements. O O 13 12 10 11 9
QUESTION 3 A footing of size 2.5 m x 2.5 m and 450 mm thick resists characteristics axial loads of 500KN dead and 200 kN imposed from a 300mm square column. The safe bearing pressure on the soil is 230kN/m?. a. Check whether the base pressure is safe b. Design the bending reinforcement, assuming 16mm diameter bars c. Check the punching shear Further Design Information Characteristic strength of concrete (fm) = 35 N/mm? %3D Characteristic yield stress of steel (f;) 460 N/mm2 Cover to reinforcement = 75 mm Diameter of main bars = 16 mm Unit weight of concrete = 24 kN/m³
Show your solution and diagram. Design a square spread footing to support an edge column 460mm x 460mm in dimension. The allowable soil pressure is 478.5 KPa, unit weight of soil is 20.4 KN/m³, unit weight of concrete is 23.5 KN/m³, fć = 21 MPa, fy = 414 MPa, 75mm clear cover and 25mm diameter rebars both ways.
Square column size 16" 280 kips, PLL = 180 kips L = 1.5B, fy = 60 ksi, f'c = 4000 psi fa 4 ksf, Footing base = 4'-6" Df PDL find 26", soil weight = 100 pcf, Reinforcement - #8 bars 1) Design for load transfer 2) Development length for the dowels 3) Design bars for footing at both directions 4) Bars fit the footing based on development length 5) Two way footing spacing diagram. 4'-6" 26 B VỈ L Ildi [ld₂ Dowel Configuration B 1.5
A footing supports a 200mm thick concrete wall. = 175 Wall loads: Dead Load kN/m = 89 Live Load kN/m = 20.6 Concrete, f'c MPa = 415 Steel, fy MPa 23.6 Unit weight of concrete kN/m³ = 1.2D + Factored load combination 1.6L Thickness of footing 350mm Steel Cover (bottom of footing 90mm to centroid of bars) The gross allowable soil pressure is 100 kPa and width of the wall is 200mm. Assume that the top of the footing is at the ground level.
A3 mx 3 m square spread footing is to support a 350 mm x 350 mm column carrying a dead load of 750 kN and live load of 500 kN. For concrete f'c is 21 MPa and for steel, fy is 415 MPa. Use NSCP 2001 provisions. Determine the effective depth considering punching shear. A 300 mm 350 mm 400 mm 450 mm B.