Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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- Answer Completelyarrow_forwardAnalyse the cantilever retaining wall to retain soil of earth of height 5.5m above ground level. Soil having bearing capacity and density are respectively 170kN/m2 and 18kN/m3. Use:Concrete grade 25Steel strength 460N/mm2Internal angle of friction 30 degreeCoefficient of friction 0.5arrow_forwardTwo columns are 4,506 mm away from each other measured center to center. The loads supported by the columns are listed below. Effective soil pressure is 103 kPa. Left Column (421 mm X 725 mm) (Note that the 725 mm side is flushed to the property line of the building and is parallel to the short side of the footing DL=720 KN LL-859 KN Right Column (594 mm X 729 mm) (594 mm side is parallel to the long side of the footing) DL=860 KN LL-856 KN Calculate the nominal wide beam shear stress in MPa at the left column. Use an effective depth of 700mm Do not round off intermediate values. Use exact values for L, B, and other variables. Answer in 4 decimal placesarrow_forward
- A rectangular footing is to be used to support a 300 x 400 (400mm side is parallel to the long dimension of the footing) column loaded with 420 kN dead load and 540 kN live load. One side of the footing is 4.0m. Use effective soil pressure of 70 kPa. F'c = 35 MPa and fy = 420 MPa. Use minimum steel ratio for longitudinal bars as 0.0018. Calculate the required number of 16mm bars along the short direction inside the band width.Calculate the total required number of 16mm bars along the short direction outside the band width. Use the governing thickness based on shear requirements on botharrow_forwardA 2-foot square footing has its bottom 2.12 ft. below the ground surface. The ground water table is located at a depth of 4 ft. below the ground surface. Unit weight of soil is 118 lb/ft3, Saturated unit weight is 123 lb/ft3, cohesion = 98 lb/ft2. Use angle of internal friction = 30° (Nc = 35.3, Nq = 29.1, begin mathsize 12px style text N end text subscript straight gamma end style = 19.1). Compute the allowable load (in lb) that the footing could carry. Use FS = 2.7. Round off to the nearest whole number.arrow_forwardA square footing is to support a 445mm square tied column that carries service dead load of PDL and service live load of PLL. The base of the footing is 2.50m below the natural grade line where the allowable soil pressure is 300 kPa. The soil above the footing has a water content of 30.5% and mass specific gravity of 1.96 and unit weight of concrete as 23.50 kN/m?. Use compressive strength of 28 MPa. Design the footing using NSCP 2015 provisions. DL = 32240 kN LL = 93850 kNarrow_forward
- Along footing, 3 ft wide, is located in the slope of a hill whose inclination is 30°. The soil of the hill is sand that has an angle of internal friction of 35° and a unit weight of 115 pcf. If a D/B ratio of 1 is assumed, what wall loading can the footing carry? Use a factor of safety of 3.arrow_forwardQ4: For flexible footing shown below, find the immediate surface settlement below the point a. dq 200 kPa, -0.5, E 22800 kPa S - " (1-, Use l, 0.76arrow_forwardThe pad footing is used to support the load of 12000 lb. Determine the intensitie (in lb/ft) w1 and w2 of the distributed loading acting on the base of the footing for the equilibrium.arrow_forward
- 4 - Calculate the FOS for overturning abutment (retaining wall) shown below, assume this wall is restrained by the bridge deck from deflecting away from the embankment but the bridge deck does not add any resistance to overturning toward the FOS. for the bridge BRIDGE DECK 12" p= 30° Y=120pcf C=0 8' 3. Yeone= 145pcf 12' 18",arrow_forwardQ1: The pad footing is used to support the axial loads 8000 Ib and bending moment 2000 lb. ft. Determine the intensities W1 and W2 of the distributed loading acting on the base of footing for equilibrium. - Steel Column 8000 ID FINED COMMECTION 2000 b SASE PLATE -RC Footing W2 W1 40 inarrow_forwardDesign a footing supporting a 400x400 concrete pier for a factored load of 600 kN using a factored bearing capacity of 300 kPa. The footing design need not be optimized, but should be practical for construction (ie. round-up dimensions). Ensure the design considers shear and bending effects on the footing. Concrete compressive strength (f′c) = 25 MPa, steel reinforcing yield (fy) = 400 MPa. Minimum concrete cover is 25 mm.arrow_forward
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