A 2.5m x 3.0m rectangular spread footing is founded in Dense Sand having a friction angle of 35 degrees. The depth of the foundation is at 2.0m below the ground surface. The groundwater table is located at 3.0 m below the ground surface. The moist and saturated Why the allowable bearing capacity of soil is greatly affected when the ground water table reaches at the ground surface.unit weights are 17 kN/m3 and 18 kN/m3, respectively. What is the net allowable bearing capacity of the footing using a Factor of Safety (FS) of 2.5?

A 2.5m x 3.0m rectangular spread footing is founded in Dense Sand having a friction angle of 35 degrees. The depth of the foundation is at 2.0m below the ground surface. The groundwater table is located at 3.0 m below the ground surface. The moist and saturated Why the allowable bearing capacity of soil is greatly affected when the ground water table reaches at the ground surface.unit weights are 17 kN/m3 and 18 kN/m3, respectively. What is the net allowable bearing capacity of the footing using a Factor of Safety (FS) of 2.5?

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

Given the properties and dimensions of an isolated spread footing, solve for the ultimate axial load that the footing can carry. Size of footing = 2.0 x 2.0 m. Thickness of Footing = 40 cm f’c = 21 MPa Unit Weight of Concrete = 23.5 kN/m3 fy = 214 MPa (footing) Unit Weight of Soil = 14.5 kN/m3 Bar diameter = 25 mm Column Size = 40 x 40 cm No. of Rebars = 9 pieces B.W. Depth of Excavation = 2 m Use Minimum Cover (75 mm)
A rectangular combined footing 8 ft * 20 ft is founded at a depth of 6 ft on a normally con-solidated sand deposit. The sand deposit is approximately 28 ft thick and overlies sandstone. CPT tests indicate the sand is relatively uniform below the proposed footing depth and theaverage tip resistance is 50 tsf. The total service load carried by the combined footing is480 k. Estimate the settlement of this footing.
2. A square footing of size 2.5 m x 2.2 m is founded at a depth of 1.2 m below the ground surface in a homogeneous cohesionless soil having an angle of shearing resistance (0) = 380. The water table is at the foundation level. The saturated unit weight of soil (Ysat) is 18 kN/m³ and bulk unit weight of soil above the water table is 15 kN/m³. Determine: a. The ultimate bearing capacity of the soil (using MEYERHOF'S method). b. The net allowable bearing pressure for Fs = 3. c. The allowable load the footing can carry. d. If water table reached to the ground level, what will be the change in ultimate bearing capacity of the soil (using MEYERHOF'S method)?
Footing
A rectangular footing 13'x14' supports a rectangular column 12" x 24", with DL = 340 kips and LL = 180 kips. The allowable soil pressure is 2.5 ksf. Determine the total soil pressure and indicate if the footing size is appropriate O 2.9ksf, YES O 3.1ksf. YES O 3.1ksf, NO O 3.8ksf, NO
2 m 3m 75 EV 1 m A The footing plan is shown loaded uniformly in a rectangular area. What is the value of the increase of stress of the second or loaded area (Aσ₂) to be subtracted?
A shallow continuous foundation is to be constructed on a soil under the ground'. surface as shown in the figure below. Determine the gross allowable bearing capacity with a factor of safety FS = 3. All dimensions in meter. II. Comment of the effect of placing the footing at the ground surface (i.e. Dr= 0) on the computed allowable bearing capacity. Take Neg as 5. 2.8 1.4 I G.S. 30 1.4 Yson = 17.7 kN/m = 30° C= 40 KN/m?
Soil
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 square column 369 mm x 369 mm rests on a square footing. The column supports a dead load of 1,289 kN and a live load of 739 kN. The soil bearing capacity is 336[85 kPa. The base of the footing is 1.77 m below the ground. Assume unit weight of concrete of 24 kN/m and unit weight of soil of 17.77 kN/m. The footing has a thickness of 593 mm and the centroid of the main bars is 100 mm from the bottom of the footing. Calculate the nominal punching shear stress in MPa. Note: Present the width (B) in multiples of 100 mm.
a square footing with a size of 10 ft by 10 ft is located 8ft below the ground surface. the subsoil consists of a thick deposit of stiff cohesive soil with an unconfined compressive strength equal to 3600lb/ft2. The soils units weight is 128lb/ft3. calculate the ultimate bearing capacity.
Given the properties and dimensions of an isolated spread footing, solve for the ultimate axial load that the footing can carry. Size of footing = 2.0 x 2.0 m. Thickness of Footing = 40 cm f'c = 21 MPa Unit Weight of Concrete = 23.5 kN/m3 fy = 214 MPa (footing) Unit Weight of Soil = 14.5 kN/m3 Bar diameter = 25 mm Column Size = 40 x 40 cm No. of Rebars = 9 pieces B.W. Depth of Excavation = 2 m Use Minimum Cover (75 mm)