USING UNITED STATES IBC CHAPTER 8: Define the following: a. Shallow Foundation: b. Expansive Soil: c. Foundation Drain: Describe the...

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Civil Engineering

USING UNITED STATES IBC CHAPTER 8:
Define the following:
a. Shallow Foundation:

b. Expansive Soil:
c. Foundation Drain:
Describe the situations when a sub-surface investigation forGround-Water table is required and when it can be waived.
In the absence of a load-bearing test for foundation to bebuilt on a crystalline bedrock, a vertical foundation pressure upto _ may be used in design.

A. 3000psfÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 4000psfÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 6000 psfÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 12000 psf
For concrete used in foundation, the specified minimumcompressive strength should be _.Â Â

A. 3000psiÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 3500psiÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 4000psiÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 5000 psi
For precast pre-stressed deep foundations elements, theconcrete cover must be at least _ inches.
A. 1.5inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 2.0inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 2.5inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 3.0 inchesÂ Â Â Â Â
Â Â Â Â Â Â Â
The minimum depth of a footing placed below undisturbed groundsurface shall be _ inches.
A. 12inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 15inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 18inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 24 inches
Code waives the frost protection requirement of foundation fora free-standing building with maximum area of .
A. 400 sq.ft.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 600 sq.ft.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 800 sq.ft.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 1000 sq. ft.
In the absence of design, the width of concrete footingsupporting a 2-story light-frame construction shall be accepted tobe _.
A. 12inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 15inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 18inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 24 inches
9. The edge thickness of plainconcrete footings supporting walls other than light-frameconstruction shall notÂ Â Â Â Â Â
Â Â Â Â Â be less than _.
A. 6inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. 8inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. 10inchesÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. 12 inches
Â Â Â Â Â Â Â Â Â Â 10.Â Â For Type buildings, timber footings areallowed by the code.
Â Â Â Â A. TypeIIÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B. TypeIIIÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C. TypeIVÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D. Type V

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4.2 Ratings (820 Votes)

Answer 1 A shallow foundation is a foundation which transfers the load of the superstructure very near to its surface It is also called as open foundation or mat foundation or spread foundation Its depth to width ratio is less than or equal to 1 They are used when the soil is sufficiently strong or stiff to sustain the imposed load Answer 2 The soil which has a See Answer

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