Problem 2: A 600 mm x 600 mm column carries a total live load of 1,200 KN and a total dead load of 1,500 kN. The column is to be supported by a rectangular spread footing whose width is limited to 3 m and whose bottom is 2 m below the ground surface. Allowable soil bearing capacity at the base of the footing is 230 kPa. Unit weight of soil above footing is 16 kN/m³ and unit weight of concrete is 23.5 kN/m³. Assume f. = 28 Mpa and fy = 275 Mpa. Assume thickness of footing to be 700 mm, Determine the following: a. Effective soil bearing capacity of the soil in kPa b. Required length of footing rounded to the nearest 0.1 m c. Required effective depth of footing based on wide beam shear in mm d. Required effective depth of footing based on punching shear in mm. e. Required number of 28-mm bars needed along short direction of footing. f. Required number of 28-mm bars needed along long direction of footing.

Problem 2: A 600 mm x 600 mm column carries a total live load of 1,200 KN and a total dead load of 1,500 kN. The column is to be supported by a rectangular spread footing whose width is limited to 3 m and whose bottom is 2 m below the ground surface. Allowable soil bearing capacity at the base of the footing is 230 kPa. Unit weight of soil above footing is 16 kN/m³ and unit weight of concrete is 23.5 kN/m³. Assume f. = 28 Mpa and fy = 275 Mpa. Assume thickness of footing to be 700 mm, Determine the following: a. Effective soil bearing capacity of the soil in kPa b. Required length of footing rounded to the nearest 0.1 m c. Required effective depth of footing based on wide beam shear in mm d. Required effective depth of footing based on punching shear in mm. e. Required number of 28-mm bars needed along short direction of footing. f. Required number of 28-mm bars needed along long direction of footing.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter16: Soil Bearing Capacity For Shallow Foundations

Section: Chapter Questions

Problem 16.6P: Redo Problem 16.2 using the modified general ultimate bearing capacity Eq. (16.31). 16.1 A...

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