Design a trapezoidal combined footing for two columns (30cm ×30cm) carrying column loads of 1.2MN and 0.90MN, if the spacing between the two columns is 4m. Take allowable soil pressure as 200KN/m2 and the length of footing as 5m. Secondly, Design the footing as a strap footing if the spacing between the columns is adjusted to be 5m

Q: 2. A strip footing will be used to support a load-bearing wall with a load (P/b) of 3500 lbs/ft. The…

A: P/b = 3500 lb/ft = 145 pcf = 120 pcf D = 2.5 ft Qg = 2000 psf

Q: 500 mm x 500 mm column carries a Dead Load of 1430 kN and a Live Load

A: Dead load = 1430 KN  Live load = 700 KN  Dimension of footing = 3×3 m  In the calculation of net…

Q: SITUATION. A square footing is to support a 400 mm x 400 mm column carrying 1400 kN live load and…

A: Given:  Dia of bar = 28 mm  Strength of concrete in column and footing = 28 mpa and 21 mpa…

Q: Q: Calculate the dimensions of the rectangular footing such that the soil pressure will be uniform.…

A: 1. Determine footing sizes: Assume a footing depth, d=8" net soil bearing capacity,…

Q: A 350 mm by 400 mm rectangular tied interior column supports a dead load of 680 kN and a live load…

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Q: 2, + Q: Given: A rectangular combined footing. Column Loads: Q = 120 kip • Q, = 200 kip Column…

A: Given: The load Q1 is 120 kip. The load Q2 is 200 kip. The span between two column L3 is 10 ft. The…

Q: 4 Two footings, one circular and the other square, are founded on the surface of a purely…

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Q: 22 x 44 (BxL) mat foundation causes a bearing pressure of 220 kPa. The footing is to be constructed…

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Q: An existing building is to be renovated. One of the existing footings is 1.5 m by 1.5 m in area and…

A: Given data: Load on the footing = 2000 kN Size of the footing = (1.5 x 1.5) m Angle of internal…

Q: Question 1 of 8 5F Determine the number of 6meters - 12mm. steel bars required if there are 10…

A: Since the spacing between the bars are not given then from the drawing, number of bars are counted.…

Q: A column 300 x 300 mm supports a dead load of 948 kN and a live load of 744 kN. The allowable soil…

A: Given data:- Size of column is 300 mm × 300 mm Dead load on column = 948 kN Live load on column =…

Q: Refer to the footing detail shown below. The net allowable soil pressure is 6000 psf (qe). Assuming…

A: We know that Net allowable soil pressure is given by qe = Service load/footing area Service load =…

Q: Design a square concrete column footing to support a 300-mm × 300-mm reinforced concrete column that…

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Q: A 3-foot square footing has its bottom 2.33 ft. below the ground surface. The ground water table is…

A:

Q: 2. A square footing has a dimension of 1.8 m x 1.8 m x 0.8 m. The column section is 320 mm square.…

A: The development length can be calculated using the following formula:Here,  and  are the…

Q: id no. 20193022142

A: Given: Df = 1.2+0.01(42) = 1.62m Water table location = 0.5+0.01(42) = 0.92 m (from the top of the…

Q: The average corrected in the effective zone for a square footing(1m x 1m) located at a depth of 2m.…

A: Let us analyse the question in step 2.

Q: 9. What does the soil stress distribution beneath the footing depend on? Depends only on the…

A: Stress distribution beneath the footing depends on the footing is flexible or rigid footing. Thus it…

Q: A 2-foot square footing has its bottom 2 ft. below the ground surface. The ground water table is…

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Q: In order to minimize the stress induced in the soil, a larger footing area should be employed.…

A: Given data in question  Footing area Stress induced To find out  True or false

Q: Design a square footing of 2m x 2m size to carry a load of 300 kN. Use M20 grade concrete and Fe415…

A: Footing: Footings are the parts of the foundation which resist the loads coming onto the structure…

Q: a continuous footing installed at a depth of 2 feet with a base of 5 feet wide is constructed on the…

A: Df = 2 ft  B = 5 ft  γ = 120 pcf  ϕ' = 35o

Q: A 460 mm reinforced concrete interior spiral column carries service loads of 1025 kN dead load  and…

A: As per Bartleby's guidelines we are supposed to answer only first three questions. Kindly repost…

Q: Problem No. 2 A circular footing with 1.50m diameter is to be constructed 1.22m below the ground…

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Q: 2. Design the dimension of a square footing to carry a column load 1800 kN. The base of the footing…

A: To design the footing, we will proceed by determining the ultimate bearing capacity of the footing.…

Q: A 2-foot square footing has its bottom 2.98 ft. below the ground surface. The ground water table is…

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Q: If the gross ultimate bearing capacity for the shallow foundation has been calculated as 550 kPa,…

A: The given data is: Ultimate bearing capacity, Q=550 kPa  Dimension of footing=1.7 m*1.7 m    = 19o…

Q: Combined Footing: L2 must be 1.42 m because of the location of the property line. Determine the…

A: Given:-

Q: For the rectangular footing (3 m x 4 m); if e = 0.5 m and q max = 200 KN/m?. Determine whether the…

A: Check of deep and shallow footing: Now according to Terzaghi: DfB=153=0.5 <1So it is shallow…

Q: A 4-foot square footing has its bottom 2.24 ft. below the ground surface. The ground water table is…

A: Since the given footing is a square footing so, Using Terzaghi's equation for square footing;…

Q: Given that the cohesion in the soil is 17 kPa and the angle of internal friction is 13 degrees, what…

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Q: If the square footing has an 800mm edge with a 300mm thickness, and that the 200mm x 200mm column…

A: Compaction: The reduction of air voids from the tightly packed soil particles is known as…

Q: A 481 mm square pedestal is to be supported by a 2.08m by 5.75m footing. It is to carry an axial…

A: Answer We are given  square pedestal = 481 mm Footing 2.08 m x 5.75 m Axial dead Load = 563 KN Axial…

Q: A 4-foot square footing has its bottom 2.07 ft. below the ground surface. The ground water table is…

A: Given  Footing size  = 4ft × 4 ft  FS= 2.4

Q: A 4-foot square footing has its bottom 2.2 ft. below the ground surface. The ground water table is…

A:

Q: A 1.80m x 1.20m x 0.4m footing with a column at the center is loaded with a column

A: Footing is part of a foundation made of concrete or brick and serves as the foundation for floor…

Q: Q2: A square footing (2x2 m) is constructed on a sandy soil as shown below. Find the maximum…

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Q: Design a square footing using 25 mm main bars and 75 mm clear cover assuming an allowable soil…

A: Solution

Q: A 4-foot square footing has its bottom 2.03 ft. below the ground surface. The ground water table is…

A:

Q: Determine the size of a rectangular footing required to support a vertical dead and live loads of…

A: in the given question both the length and width are missing and we need both of them to calculate…

Q: A continuous footing is to be designed to carry a wall load of 7 kips/ft. The soil shear strength…

A: The given data is: Su=700 psf Wall load, Qa=7 kips/ft Df=2.5 ft FS=2.5 γ=110 lb/ft3

Q: The width of a square footing and the diameter of a circular footing are equal. If both the footings…

A: Given data- Width of a square footing = diameter of a circular footing, Both the footings are placed…

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.