3. A concrete wall footing is to supports a dead load including its own weight of 324 kN/m and a live load of 240 kN/m. The wall has thickness of 300 mm. The footing base is designed to be laid 1.8 m below ground surface. Assume allowable bearing capacity of soil to be 195 kPa, weighing 16.8 kN/m³ and concrete with weight of 23-5 kN/m. Use factors 1.2 for dead load and 1.6 for live load. Fy = 415 MPa, fc = 20.7 MPa 300 300 Ground Surface Ground Surface N= L0 m 1m Figure 2b Figure 2a Which of the following is the width of the concrete footing? (Trial depth, D = 550 mm, concrete cover =75mm) 3.1 A. 161.92 kPa C. 159.82 kPa B. 162.76 kPa D. 161.10 kPa

3. A concrete wall footing is to supports a dead load including its own weight of 324 kN/m and a live load of 240 kN/m. The wall has thickness of 300 mm. The footing base is designed to be laid 1.8 m below ground surface. Assume allowable bearing capacity of soil to be 195 kPa, weighing 16.8 kN/m³ and concrete with weight of 23-5 kN/m. Use factors 1.2 for dead load and 1.6 for live load. Fy = 415 MPa, fc = 20.7 MPa 300 300 Ground Surface Ground Surface N= L0 m 1m Figure 2b Figure 2a Which of the following is the width of the concrete footing? (Trial depth, D = 550 mm, concrete cover =75mm) 3.1 A. 161.92 kPa C. 159.82 kPa B. 162.76 kPa D. 161.10 kPa

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter11: Load And Resistance Factor Design (lrfd)

Section: Chapter Questions

Problem 11.1P: A continuous foundation is required in a soil where c=10kN/m2, =26, and =19.0kN/m3. The depth of the...

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