A group of twelve prestressed concrete piles is to support a building column. The total downward design load on the group is 4,900 k. Assuming this load is evenly distributed across the 12 piles, and that there are no moment or shear loads, select a pile size and 28-day compressive strength of the concrete.

Q: Design a precast concrete pile subjected to an uplift Ioad of 500 kN and A Moment of 50 kNm. Use M30…

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Q: to support a permanent axial load of 2200 kN and variable load of 1000 KN from a 500 x 500 mm…

A: According to given data  permanent axial load of 2200 kN and variable load of 1000 KN from a 500 x…

Q: A wooden pile is being driven with a drop hammer weighing 30 kN and having a free fall of 1 m. The…

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Q: meguial surface Rough surface Tane surface Smoon surface 5- When we classify the piles in accordance…

A: Given data in question  Piles Piles are used as a substructure part which transfers all the coming…

Q: Write a Short note on Statical Analysis (Single Pile Capacity).

A: Static Analytic Method Of Single Pile Capacity

Q: Q- The piles are classified according to the :method of transmission loads to Non of them Friction…

A: According to the mode of transmission of loads piles are classified into: 1) Friction Piles: The…

Q: What will be the load carrying capacity (kN) of group of 6 piles, if the individual load carrying…

A: No. of piles N = 6 Load carrying capacity of individual pile = 150 kNGroup effeciency = 75 %To Find…

Q: A reinforced concrete pile weighing 30 kN is driven by a drop hammer weighing 40 kN and having an…

A: Ultimate bearing capacity : The maximum gross pressure strength at the foundation's base at which…

Q: O Calculate Lateral movement and Maximum moment of a 12" by 12" precast concrete single pile which…

A: Given: ϕ = 32o B = 12 in For sand: λ=1 For square section: R1 = 1.7 ε50=0.002

Q: Under what conditions will tensile stresses be generated in pile driving? In what situations should…

A: When the pile is driven into the soil, stresses are developed due to the pile goes downward. due to…

Q: Briefly discuss the function of pile foundation and why is normally used for huge civil engineering…

A: Foundation: The lowest part of a building or other civil structure that comes in direct touch with…

Q: Explanation of nouns: 1. Static pressure pile 2. Soil penetration 3. Mechanical connection of steel…

A: 1. Static pressure pile: The static pressure pile process of construction of existing building…

Q: c) Discuss the importance of composite piles in the construction of foundation of structures.

A: Composite Piles square measure those piles of 2 totally different materials are driven one over the…

Q: Calculate the side resistance in kips using the US Army Corps of Engineers (EM 1110-2-2906, Figure…

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Q: Calculate the side resistance in kips using the US Army Corps of Engineers (EM 1110-2-2906, Figure…

A: Given Data: Shear strength = 3752psf pile diameter = 14 in = 14/22ft = 1.167ft Length = 22ft

Q: Two identical concrete piles having the plan dimensions 50cm x 50cm are driven into a homogeneous…

A: Given- Identical concrete piles. plan dimensions 50 cm×50 cm.Nq=24 for φ=30o,   It is needed to find…

Q: Describe the relationship between the capacity of a tested or analyzed pile and the driving record.

A: Relationship between the capacity of a tested or analyzed pile and the driving record is given by…

Q: Design a precast concrete pile subjected to an uplift load of 500 kN and a moment of 50 kNm. Use M30…

A:

Q: What is the ultimate downward load carrying capacity of a single pile driven in soil?

A: The ultimate downward load carrying capacity of single pile driven in soil are : - Using Analytic…

Q: When we classify the piles in accordance to the type of loading, then we may call it as: *End…

A: Piles are vertical or slightly inclined, relatively slender structural foundation members. They…

Q: An 18" square solid concrete pile is driven with an impact hammer to a depth of 55ft below grade…

A: Solution: Considering the Diagram: Qp=qpApqp=σvo'      Nq*≤0.5pa  Nq*tanφ…

Q: The ultimate load capacity of a 10 m long concrete pile of square cross section 500 mm x 500 mm…

A: Given, For pile 1:- Length = 10m Cross section = 500mm×500mm C=40kPa Ultimate load capacity= 700kN…

Q: 12 - Precast piles are suitable for a) O Protect water front structures b) O Maximum design load C)0…

A: Precast piles are the type of prestressed concrete that are driven in ground by hammer or diesel for…

Q: 2. Construct a bar chart to use in managing the construction of a single span bridge. The identified…

A: Given data,Drive piling west abutment (WA), 2 daysDrive piling east abutment (EA), 2 daysConstruct…

Q: al distance from the end shoul

A: solution of above problem is below:

Q: 3. Determine the allowable end bearing resistance of a 16" x 16" square pile bearing in a clay…

A: Pile load = End resistance + Side friction End Resistance due to tip reaction due to hard strata.…

Q: Design a precast concrete pile subjected to an uplift load of 500 kN and a moment of 50 kNm. Use M30…

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Q: A 15 m long Douglas fir pile with a head diameter of 250 mm will be subjected to a compressive load…

A: Check the axial stresses fu≤Fu ....... (1) Here, fu is the average normal stress caused by axil load…

Q: An HP 13 * 60 pile is made of steel with fy = 50 k/in2 and is to be loaded in compression only…

A: Calculate the maximum allowable compressive load on pile using the equation P = fu × A ..... (1)…

Q: Based on Meyerhof’s (1956) suggestion, do you think a mechanical or electrical cone penetration…

A: Following is required answer :

Q: # 2. Discuss in your own words with the help of diagram, the load transfer mechanism in skin…

A: Given data in question  Load transfer mechanism in piles with aid of diagram End bearing mechanism:…

Q: For what purpose are the piles shown in the picture and prepared to hammer into the ground in the…

A: Polygoning Is the process of making polygon on field to take measurements along different lines

Q: What is the most common yield strength of steel used for steel piles?

A: Yield strength: It is defined as the maximum stress applied to material until before it changes to…

Q: Q3/ A 600 mm square prestressed concrete pile is to be driven to a depth of 20.0 m into the follow-…

A: Skin fraction capacity - QS QS = AsCa Here, As = 4×.6×18⇒As = 43.2 m2 And Ca = 35×5 + 55×5 + 6×85 +…

Q: The diamter of precast round piles under pile cap is 400mm, the embedded depth of cap bottom is…

A: D(dia of pile) = 400mm = 0.4m Qu = 9 x qpa x Ab + α qsia x As

Q: Q- The piles are classified according to the :method of transmission loads to

A: There are many different ways of classification of piles: Based on type of material Based on length…

Q: 12 - Precast piles are suitable for a) O Protect water front structures b) O Maximum design load C)O…

A: Classification of piles based on function is as follows. End bearing piles Friction piles…

Q: Discuss the categories of the loads acting on piles.

A: Answer The load has the following categories1- Axial Loads2- Lateral Loads

Q: thank you much. And if I need to calculate the loads on the piles under column C3 and select a…

A: For this problem, we have to find out design for column C-3

Q: Discuss in your own words with the help of diagram, the load transfer mechanism in skin…

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Q: The diamter of precast round piles under pile cap is 400mm, the embedded depth of cap bottom is…

A: D(diameter of pile) = 400mm = 0.4mdepth of cap= 1.5 ml1=8m and l2=2mTo find:bearing capacity

Q: Discuss in your own words with the help of diagram, the load transfer mechanism in skin…

A: Given information in question  Load mechanism in friction and end bearing piles.   The end bearing…

Q: Design a bored pile carrying a <OMpressive load of 1000 kN ¤nd a moment of 50 kNm. Use M25 mix And…

A:

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.