Note: Read the question carefully. Compute the column load, P, that would induce a bearing capacity failure for the 4 ft by 6 ft rectangular concrete column shown below (i.e., do not use a factor of safety – find the column load at which failure is expected to occur). The groundwater table is at least 6 ft deep. Use Vesic’s bearing capacity formula.

Note: Read the question carefully. Compute the column load, P, that would induce a bearing capacity failure for the 4 ft by 6 ft rectangular concrete column shown below (i.e., do not use a factor of safety – find the column load at which failure is expected to occur). The groundwater table is at least 6 ft deep. Use Vesic’s bearing capacity formula.

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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A rectangular footing 2.1 m x 3.2 m x 0.37 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 363 kN LL = 291 kN f'c = 21 MPa Fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPa.
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Problem 8.26 WD = 20 kN/m wj. = 36 kN/m 4 m concrete cover is 40 mm 6 #29 450 450 mm 70 mm 800 mm 730 mm For each of the problems, you must perform the following Recalculate the effective depth assuming concrete cover of 40 mm, and use only your calculated effective depth to answer the questions. Shear strength of concrete must be calculated using both the simplified and detailed methods of ACI318 Table 22.5.5.1. -Verity the spacing between main reinforcing bars satisfies AC1318 minimum spacing requirements. -Demonstrate the calculation of the shear forces needed to answer the questions including a fully labelled shear force diagram. The diagram must show the location within the span where 1) no shear force is required (if any), 2) minimum shear force is required (if any). Sketch (manual sketches OK) the beam and show the main reinforcement and distribution of shear reinforcement along the span, including distances where each spacing applies.
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