Calculations 1. Calculate the Allowable load (Tons) of an 8 % inch steel pipe pi

Question

Calculations 1. Calculate the Allowable load (Tons) of an 8 % inch steel pipe pile filled with concrete Allowable Load (Tons) P-[(o.soF,A) (0.33F 4)/2000b om 8.625 0.375 Diam. of Pipe OD (inch) Wall Thickness of Pipe (inch) Allowable Steel Stress Fy (PSI) Concrete Strength fc (PSI) Amount of corrosion (inch) 36,000 4,000 0.0625 2. If the design engineer specifies piles with an allowable load of 100 tons, does this pile meet the requirements? 3. If so does this pile from the wave analysis graph Fig I attached stay below the limit of 40ksi compressive stress and also meet the Ultimate Load Capacity of 400kips with-in a reasonable number of blows per foot (blow count) around 200?

Explanation / Answer

In question 1 we will follow pile dimensions given as

Outer dia of pile = 8.625 "

Wall thickness = 0.375"

Thus inner dia of steel = outer dia of concrete = 8.625-0.375 = 8.25"

Thus area of steel = (8.625^2 -8.25^2)/4 = 4.97 in^2

Area of concrete = 8.25^2 /4 = 53.456 in^2

Thus allowable load in tons as per formula given in question above

P= (0.5*36000*4.97 +0.33*4000*53.456)/2000 = 80.01 tons

Answer 2

Allowable load specified by design engineer = 100 tons

Allowable load calculated above = 80.01 tons

Thus as 80.01 < 100 , hence the pile does not meet requirements

Answer 3

Graph is missing

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.