number 2 please 1. A continuous footing is shown in the figure below. Using Terzaghi's ultimate...
Please solve each and explain process and equations 5. (30) Define allowable bearing capacity of a circular foundation of a radius 2R-18 ft using the Terzaghi's bearing capacity equation for a general failure, if the water table were at and below the elevation of the bottom of the foundation. A factor of safety is 2.2. Qall 6 ft SAND φ =36 0 e007 2R 16 ft> 16 ft CLAY 18 ft : 0.5 еой 0.8 Y sat 135 pcf ROCK...
HW#10 Given the following column loading and footing information, determine the size of a mat foundation shown below: I 15 Column Information: Column A: Live load = 40 kips, Dead load = 50 kips Column B: Live load = 80 kips, Dead load = 100 kips. Distance between two columns: 15 ft. W soil = 120 psf 24" I CA C. Footing information: Distance from column A to edge of footing: 1 ft. Allowable soil bearing capacity = 3000 psf...
help please A square footing is founded at 3-ft depth below ground surface as shown in Fig1, The factored axial load acting on the square footing is 140 kips, Determine the size of the footing (B x B) if the Factor of Safety (F.S.) is 3.0. Ground surface ЗА B-? Silty Sand Fig.1 A 68-ft long pre-stressed concrete pile with square cross section (14 inch) is driven into the soil profile shown in Fig. 2. Compute the ultimate compressive load...
5. A square footing is 4 mx 4 m in plan. Determine the gross allowable load, Qall, that the square footing can carry. Use the general bearing capacity equation and a factor of safety F.-4). Given unit weight of soil y = 19 kN/m, c' = 0 kN/m, 6 - 35°, D-2 m. The load is applied vertically and the groundwater is very deep. Qall = ? B = 4 m
Part-I: OPEN BOOK Problem 1 (30 points). For the isolated square footing shown below, assume that the combined weight of soil and concrete above the base of the footing is equal to 120 pcf. Assume fc-3000 psf and column size of 18in. x 18 in. Determine the followings: a) If the footing size of 10ft. x10ftx 2ft. is adequate based on allowable soil-bearing capacity qa 6,000 psf b) If the footing 10ft. x10ft.x 2ft. is adequate for shear e) Calculate...
4. A 6' by 6' by 24" (thick) cast-in-place reinforced concrete footing will be placed within a 20-foot thick surface layer of clayey sand. The footing will have an embedment depth of 3 feet. The soil has a cohesion of 200 psf, an internal friction angle of 28 degrees, and a moist unit weight of 116 pcf. The groundwater table is at a depth of 16 feet below grade, and there is no capillary rise. Perform a rigorous analysis to...
3. The bearing capacity of shallow foundations (i.e. footings) depends on the soil shear strength (ie. ф and c). The ultimate bearing capacity (qultnei) of the soil is calculated using the following equation: Dr qult.net bearing capacity failure surface i. Frictional resistance along failure surface due to self-weight of soil below footing level footing level. Ny. No, and Ng are dimensionless bearing capacity factors that depend on the ii. Cohesive resistance along failure surface below footing level. iii. Frictional resistance...
on 4 Please round to the nearest Tenth (i.e., 0.1). No Comma! Moist unit weight of soil, gamma 101 pcf The factor of safety, FS-3 A square footing carries the proposed total load of 680 kips (Q) red out of on Dr-B Φ = 30° с 0 v 0.35 E-450,000 Ib/t 1:0.88 x B psf (only numeric valuel) 1. Allowable bearing capacity, qa- 2. Required dimension, B in terms of bearing capacity- 3. Required dimension, B in terms of settlement...
Help please! Problem 2 Figure 2 shows a continuous footing a) Determine the ultimate bearing capacity () if H 1.5 m b) At what maximum value of H/B will the clay layer not have any effect on the ultimate bearing capacity ( of the foundation. Sand 1.2 m 1 18 kN/m3 φ' = 40° B=2m Clay30 kN/m2 Figure 2
1. For the foundation shown below: spp 60 kips (Load obtained from structural engineer) G.W.T 몰3ft Poorly Graded Sand (SP): 1m115 pcf (above G.W.T.) Ysat 125 pcf (below G.W.T.) Square footing, 4'x 4 imension Infoma 1-ft x 1-ft square concrete column. 1-ft thick foot" flanges conc 150 pcf Assume weight of reinforcing steel included in unit weight of concrete. Assume compacte weighs the same as in-situ soil d backfil Assume this foundation is being designed for a warehouse that had...