The width of a square footing and thediameter of a circular footing are equal. Ifboth the footings are placed on the surfaceof sandy soil, the ratio of the ultimatebearing capacity of circular footing to thatof square footing will be

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Answered: The width of a square footing and the…

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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Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is the same as that of the side of the square footing. The ratio between their ultimate bearing capacities will be
SITUATION. A 3 mx 3 m square spread footing is to support a 350 mm x 350 mm column carrying a dead load of 750 kN and live load of 500 kN. For concrete f'c is 21 MPa and for steel, fy is 415 MPa. If the effective depth of the footing is 500 mm, find the number of 25 mm reinforcements. O O 13 12 10 11 9
Describe the Stress conditions for lower bound solution of footing bearing capacity.
7. A continuous strip footing bears on sand with groundwater one-half the footing width below the base of the footing. Which of the following changes will Increase the allowable bearing pressure? D B/2 PFT B SAND A) Embedment depth remains D, but the footing width is decreased. B) Embedment depth remains D, but the groundwater is raised to B/4 below the base of the footing. C) Embedment depth and groundwater remain D and B/2, but the unit weight of the sand is increased. D) Groundwater remains at B/2 below the base of the footing, but the embedment depth is decreased.
Sketch the different types of Shallow footings showing the main reinforcement and secondary reinforcement directions.
What are the two, independent design criteria all foundations must satisfy? Select one or more: O a. Appearance b. Bearing Capacity c. Settlement O d. Depth
Design Data: Concrete cover 35 mm Assume foundation thickness is 560 mm Diameter of main reinforcement in both direction = 25 mm Dimension of footing are 2.25 m x 2.25 m 5.06 m DL = 1000 kN LL = 300 kN - 2.25 m
The type of foundation classified based on a. Length / Breadth Ratio b. Depth / Breadth Ratio O . Breadth / Depth Ratio d. Depth / Length Ratio
A 2.15m wide square footing is subjected to a moment whose equivalent eccentric load is located 0.42m from the center of the footing. The ultimate bearing capacity of the soil underneath the footing is 318 kPa. If the dead load component of this moment is 35kNm, what is the live load component in kNm? Consider a factor of safety = 2.5 and ASD A 2.15m wide square footing is subjected to a moment whose equivalent eccentric load is located 0.42m from the center of the footing. The ultimate bearing capacity of the soil underneath the footing is 318 kPa. If the dead load component of this moment is 35kNm, what is the live load component in kNm? Consider a factor of safety = 2.5 and ASD 78.693 None of the choices 113.693 249.233 17.489 77.852 Please answer this asap. For upvote. Thank you very much
An engineer is designing a 6ftx6ft square/rectangular footing. If they want to find the stress 15 ft below the corner of the footing, what influence coefficient would they use?
A footing of dimensions 4 m x 3 m is reinforced with 3000 mm² total flexural reinforcement in the short direction. The reinforcement required in the central band width will be
A footing of size 2.5 m x 2.5 m and 500 mm thick resists characteristic axial loads of 800kN dead and 300 kN imposed from a 400 mm square column. The safe bearing pressure on the soil is 230 kN/m2 and the characteristic material strengths are fcu = 35 N/mm2, fy=460N/mm2. Density of concrete is 24 k N/m3. Cover to all reinforcement is 50 mm. Determine the design load b) Check whether the base pressure is safe c) Design the bending reinforcement, assuming 16 mm diameter bars.

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The width of a square footing and the diameter of a circular footing are equal. If both the footings are placed on the surface of sandy soil, the ratio of the ultimate bearing capacity of circular footing to that of square footing will be