An RC column of size 400 mm × 400 mm is supported on four piles of 300 mm diameter (bored cast in situ piles). The column carries a load of 750 kN and a moment of 250 kNm in the x–x direction. Design the pile cap assuming M25 concrete and Fe 415 steel. Further, assume that the piles are capable of resisting the reaction from the pile cap.

Q: B- For the given conditions: Pile dia.=0.5m, L=12m, bored pile, Piles No.=6, S=1m, Rectangular Cap…

A: For single pile -  Ultimate load capacity =  Qu = Qsu + Qbu⇒Qu = 250 + 400⇒Qu = 650 KN   For…

Q: (b) Determine ultimate carrying capacity of pile of dia. 0.3m and length 10m driven into sandy soil…

A: Given data- Sandy Soil Dia of the pile (d)=0.3m Length of the pile (L)=10m Unit weight of soil γ=17…

Q: Calculate the load bearing capacity of the pile shown in Figure Q5. Assume that it is a bored pile,…

A: Given, L = 18.5 m B = 0.60 m

Q: 2. A 0.45 m diameter, 20 m long, precast concrete pile is driven into a sandy soil profile. The SPT…

A: ###DETERMINATION OF Ultimate bearing Capacity of Driven Pile into a Sandy Soil wih SPT value given…

Q: A rectangular pile (0.91 x 0.54 m.) is driven in a clayey soil arrangement composed of two different…

A: To determine the allowable load that the pile can carry.   The bearing capacity of a pile is…

Q: A solid steel pile (E = 200 GPa) with uniform diameter of 100 mm is driven into a soil layer and…

A: The given data is as follows: E=200 GPaDiameter of pile=100 mmVertical force=40 kNFrictional…

Q: DL = 1200 KN LL = 700 KN Pile capacity = 250 kN c-c spacing of piles = 1.1 m edge distance = 0.5 m…

A: Given:- f'c=27.5MPa fy=275MPa 25mm dimater bars d=250mm DL=1200kN LL=700kN Pile capacity =250kN edge…

Q: rectangular pile (0.54 x 0.63) is driven in clayey soil arrangement composed of two different…

A:

Q: Q- A precast concrete pile is driven with a 50 kN hammer falling through a height of 1.0 m with an…

A: Given- Weight of hammer W=50 kN, Height h=1 m, Efficiency n=0.6, Set value S= 4mm, Compression c=6…

Q: group of 9 driven piles, 12 m long and 300 mm in diameter is to be arranged in a square pattern in…

A:

Q: A pile of diameter 457 mm is fully embedded in a clay strata as shown in figure. C- 25 kN/m y= 16…

A:

Q: Q- A precast concrete pile is driven with a 50 kN hammer falling through a height of 1.0 m with an…

A: To find out the ultimate resistance of pile by modified hiley formula.

Q: A square pile group of 9 piles passes through a recently filled up material of 3.5 m depth. The…

A: A square pile group of 9 piles,Depth of pile = 9 m,Depth of soil fill =3.5 m,Diameter of the pile=30…

Q: Check the total settlement of a group of pile as shown in Figure 1. The t

A:

Q: → A reinforced cement concrete pile weighing 30 kN (including helmet and dolly) isuriven by a drop…

A:

Q: Q-A precast concrete pile is driven with a 50 kN hammer falling through a height of 1.0 m with an…

A:

Q: A prestressed concrete pile, 475 mm in diameter, is to be driven in a clayey soil. The pile has a…

A: NOTE :- Since, it is not given the type of pile so taking it as both end bearing and friction pile.…

Q: 7.6 A dozer with as S-blade has pushed a normal load onto a level area. The height of this load…

A:

Q: A prestressed concrete pile, 496 mm in diameter, is to be driven in a clayey soil. The pile has a…

A: Appreciate if there is detailed work with explanation and finds you helpful for ease of…

Q: A rectangular pile (0.52 x 0.82 m) is driven in a clayey soil arrangement composed of two different…

A:

Q: Q.19 A single pile, 60 cm in diameter and 15 m long, is driven in clay having an average unconfined…

A:

Q: Nine-pile group consists of 0.28-meter-diameter friction concrete piles 24m long arranged in 3 rows…

A:

Q: A 50 cm square prestressed concrete pile will be driven 20 m into the soil profile below. (water…

A: Given: A_b = (50 cm)2 / (100 cm/m)2 * pi / 4 = 0.196 m2 c' = 4 kPa (using ϕ= 28 deg) N_c = 14.7 N_q…

Q: layey so friction factor of 0.81. Compute the allowable load that the pile can carry if the factor…

A:

Q: (c) Determine the ultimate capacity of a 350mmx350mm pre-cast concrete pile to be installed 18m into…

A: schematic diagram of the given pile as per the statement:

Q: A single pile, 50 cm in diameter and 15 m long is driven in clay having an average unconfined…

A: Pile foundation case-Diameter d=50 cm=0.50 m,Length L=15 m,UCS qu=100 kPa,Shear mobilization factor…

Q: A concrete pile 458 mm by 458 mm square cross section is embedded in a saturated clay. The length…

A: Given data- A concrete pile 458 mm by 458 mm square cross-section. Saturated clay. The length of the…

Q: 3. A jnven closed-ended pjle, circular in cross section, is shown. Calculate the following. a. The…

A: Given, Pile diameter (D) = 381 mm or 0.381 m  Pile length (L) = 21 m

Q: QUESTION 3: Three forces act on a pile as shown. If the resultant of the three forces is equal to…

A: An arrangement of forces have been given and it has been asked to determine missing force and its…

Q: A single pile, 50 cm in diameter and 16 m long, is driven in clay having an average unconfined…

A:

Q: Nine-pile group it of 0.3-meter-diameter friction concrete piles 20m long arranged in 3 rows by 3…

A:

Q: A prestressed concrete pile, 492 mm in diameter, is to be driven in a clayey soil. The pile has a…

A:

Q: Nine-pile group consist of 0.32-meter-diameter friction concrete piles 23 m long arranged in 3 rows…

A:

Q: 17) The friction load capacity of the pile using the B-method is most nearly: a. 437 kN b. 927 kN c.…

A: To determine- Friction load capacity

Q: 1- Find the ultimate capacity of the pile below using A- Meyerhof B- Vesic C- Coyle and Castello…

A: Given:- The dimension of the concrete pile = 0.46 m × 0.46 m  The length of the pile = 20 m  The…

Q: Problem 1 Pre-stressed concrete piles are planned for use as the foundation for a waterfront…

A: Given data in question  Unit weight  Side of pile Length Constant values To find out  Skin friction…

Q: A rectangular pile (0.77 x 0.72 m) is driven in a clayey soil arrangement composed of two different…

A: Given  Pile dimensions : 0.77m x 0.72m Factor of safety : 2  Figure corresponds to given data: Skin…

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

A:

Q: A nine pile group consists of 0.30m diameter friction concrete piles 12m long. The piles are driven…

A: Given data in question  Length Diameter  Unconfined compressive strength Center to Center spacing…

Q: A group of driven piles are to be built in layered soils as shown in the figure below. Please…

A: For ϕ = 35o ,   Nq = 33.5 Assuming pile to be concrete, and for loose sand {as γ=120psf}; k = 1…

Q: A single pile, 60 cm in diameter and 15 m long, is driven in clay having an average unconfined…

A: Given, d=60 cmL=15 mcu=1202 kN/m2cu=60 kN/m2α=0.75

Q: Silty clay Y- i18 Iivn C,- 700 Ib/ft 20 ft Groundwater Plasticity index, PI = 15 table . Silty clay…

A: Given : Equation 9.45, fav = 0.02 pa(N60) Equation 9.46, fav = 0.01 pa(N60) Equation 9.47, fav =…

Q: Determine load carrying capacity of pile without considering critical depth concept. Diameter of…

A: Answer We know that the load bearing capacity of pile(Q) is given by  combination of point Bearing…

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.