Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. civil engineering
  3. a large 20-story steel structure is planned for an

A large 20-story steel structure is planned for an office building the Denver Metropolitan. The exploration...

60.1K

Verified Solution

Question

Civil Engineering

A large 20-story steel structure is planned for an officebuilding the Denver Metropolitan. The exploration program revealedthat foundation soil comprises of 25-foot clay with undrained shearstrength of 1,000 psf overlying a thick stiff clay shale with theundrained shear strength of 3,000 psf. To avoid construction noise,the architect selected 3-ft diameter drilled shaft foundation. Thedrilled shafts are socketed 15 feet in the stiff clay shale.Calculate:

a. The ultimate capacity of the drilled shaft.

b. Estimate the total structural dead load.

c. Estimate the office building life load.

d. At a factor of safety of 2,5, how many drilled shafts wouldbe required?

Note: When you suspect some missing information, please makereasonable assumption(s) and process with your solution. Clearlyshow why assumption(s) is needed.

Answer & Explanation Solved by verified expert
3.7 Ratings (651 Votes)
Ans GivenThickness of clay layer 25 ftUndrained shear strength of overlying soil 1000 psfUndrained shear strength of below soil 3000 psfDiameter of drilled shaftd 3 ftLength of pileL 15 fta We knowUltimate capacity of pileQ Bearing capacity Skin frictionresistanceQ qb Ab qsAsQ C NcAb C    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

1) Best Darn Glasses (BDR) is thinking of investing in a sandblasting machine for its glassware....

Finance
Q

What does the angle of twist mean in chemical compunds? Specifically BINOL. Where can I find references?

Chemistry
Q

Glyceraldehyde 3 phosphate dehydrogenase donates the hydride to O oxygen O acetyl COA O NAD...

Biology
Q

Apr 27 12 39 37 PM Watch help video If VW 87 WU 80 and...

Geometry
Q

27 Given LM JM L K 083 M Prove ALKMAJKM 10

Geometry
Q

Evaluate if possible the six trigonometric functions at the real number If an answer is...

Calculus
Q

T and K is the overlap so 8 + 23 = 31C is 9+16 +23+15=...

Algebra
Q

The production department of Regina Partners has submitted the following forecast of units to be...

Accounting
Q

White Incorporated employs a just-in-time (JIT) inventory system. Which inventory issues are mitigated by this...

Accounting
Q

Gelb Company currently makes a key part for its main product. Making this part incurs...

Accounting
Q

Truman, an industrious worker, is faced with the following tax table: If Truman earns $73,000,...

Accounting
Q

On January 17, 2017, marina purchased a put option for $400. The option expired on...

Accounting