Determine the net ultimate bearing capacityof mat foundations with the followingcharacteristics:Cu = 120 kN/m², = 0, B= 8 m, L = 18 m,Df = 3 mHint; use Equation 8.12 to solve thisquestionSelect one:O a. 771 kN/m²O b. 7.71 kN/m2O c. 771 N/m²O d. 77.1 kN/m²

Given Data: Cohesion is cu=120 kN/m2 Angle of internal friction is φ=0. Width is B=8 m. Length is…

Answered: Determine the net ultimate bearing…

Determine the net ultimate bearing capacity of mat foundations with the following characteristics: Cu = 120 kN/m², p = 0, B= 8 m, L = 18 m, Df = 3 m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Example 11 (TBEC 2018 section Z-I-2.1.): Reinforced concrete building with 6 floors and 1 basement will be constructed on a soil deposit with shear strength parameters of c, = 250 kPa and ou = 0°. Unit weight of the soil is given as 19 kN/m³. Depth of the foundation is 3.5 m and dimensions of the raft foundation is 14m x 19m. Under the static condition and with 1.4DL+1.6LL load combination, maximum foundation pressure is determined as 364 kPa whereas, in earthquake condition with 1DL+1LL+1E, maximum foundation pressure is given as 216 kPa. Calculate the ultimate bearing capacity by using General Bearing Capacity equations and determine whether the foundation is safe or not.
A foundation is to be constructed for a small residential building that is approximately 6.0 metres wide by 8.0 metres long. The foundation will consist of a strip footing that is 0.6 metres wide, along the bottom of the foundation wall, and 2 pad footing for central columns with dimensions of 1.2 metres by 1.2 metres. The total weight of the structure is estimated to be 2550 kilonewtons. What is the bearing pressure of the building, in kPa?
Use Terzaghi's equation and Terzaghi's Table
Please round to the nearest One (i.e., 1). No Comma! The results of a plate-load test in a clay soil are shown below. The size of the plate is 0.41m x 0.41m. If a square column foundation (3m x 3m) that should carry a load of 2700KN, what is the estimated settlement of the foundation? Load/unit area Settlement (KN/m²) Load/unit area (kN/m?) (mm) 200 600 800 400 200 300 6. 10 400 13 500 20 20 600 29 30 40 50 60 70 Answer = mm Next page page MacBook Air トII F1 F2 F3 F4 F5 F6 FB F9 @ #3 2$ & 2 3 4 7 8 W R Y U S D F G K Settlement (mm)
Given the following characteristics: Cy = 2500 Ib/ft², ♡ = 0, B = 20 ft, L = 30 ft, Df = 6.2 ft Determine the net ultimate bearing capacity of mat foundations Hint; use Equation 8.12 to solve this question Select one: O a. 163.21 Ib/ft2 O b. 16321 Ib/ft? O c. 16321 KN/m² O d. None
2. The column load of a square foundation (Figure 1) is given. If the depth of foundation D= 4 ft, 0=30°, and c = 0. Using Terzaghi's bearing capacity equation and FS = 2.5, determine the proper size of the footing. D.L. = 80 kip L.L. = 60 kip qult = 1.3 c N. + qN, + 0.4 y B N, Figure 1 TABLE 2.1 Terzaghi's Bearing Capacity Factors-Eqs. (2.32), (2.33), and (2.34) N. N, N. N. N, N. N, N, Ysoil = 118 pcf 2 ft W.T 1.00 0.00 17 14.60 0.01 18 15.12 1.22 0.04 19 | 16.57 6.62 1.35 0.06 20 | 17.69 1.49 0.10 21 | 18.92 |1.64 0.14 22 20.27 1.81 0.20 23 21.75 2.00 0.27 24 23.36 2.21 0.35 25 25.13 2.44 0.44 26 27.09 9.61 2.69 0.56 27 29.24 5.70 5.45 2.18 34 2.59 35 36 52.64 57.75 36.50 38.04 D; = 4m 6.00 1.1 6.04 41.44 45.41 6.30 6.70 3.07 63.53 47.16 54.36 3.64 4.31 38 5.09 39 70.01 77.50 85.97 95.66 106.81 65.27 78.61 95.03 3 7.44 37 53.80 8.26 9.19 61.55 70.61 4 6.97 5 7.34 3m x2m 6. 7.73 10.23 6.00 40 81.27 115.31 11.40 12.72| 8.34 8.15 7.08 41 93.85 140.51 171.99 211.56 8 8.60 42 119.67…
A 600 mm square interior column, reinforced with eight No.25 bars of Grade 420, supports a dead load of 866 KN and a live load of 577.33 KN. Assume that a live load reduction of 30% may be allowed at foundation level. The foundation is to be placed at a depth of 1m where the allowable bearing capacity is 110 KPa. The average density of the backfill material and the footing concrete together may be taken as 2100 Kg/Cu.m, while the filling from ground to plinth level is to be 0.5m of material with average density of 1900 Kg/Cu.m. Design a square footing using fc’=20 MPa, fy for foundation steel=300 MPa and fy for dowel steel=420 MPa.