1. The reinforced concrete cantilever retaining wall in Figure 1 is made with 3000 psi normalweightconcrete and reinforced with Grade 60 galvanized steel. The main reinforcement resists flexuralstresses in the stem and is specified as #7 bars every 18 in along the length of the wall. Thedistribution steel distributes stresses along the length of the wall and is specified as #4 bars at 12 inspacing. The concrete cover is 1.5 in everywhere. Calculate the development length for the mainreinforcement using the basic equation (ACI 318-19: 25.4.2.4). Assume no transverse reinforcement(Ker 0). Is the main reinforcement embedded deeply enough in the footing to fully develop its yieldstrength in tension?

The objective of the question is to calculate the development length for the main reinforcement of a…

Answered: 1. The reinforced concrete cantilever…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Prob. 4-162 1 m W1 60 kN 80 KN -2.5 m- -3.5 m 50 kN 1 m W2 4-163. The form is used to cast a concrete wall having a width of 5 m. Determine the equivalent resultant force the wet concrete ex- erts on the form AB if the pressure distribution due to the concrete can be approximated as shown. Specify the location of the resultant force, measured from point B.
A reinforced concrete beam has a width of 300 mm and effective depth of 500mm to the centroid of the tension reinforcements. Consider the steel reinforcements will be placed in a single layer arrangement. Concrete strength fc’ = 34.5 MPa. Determine the steel ratio of the section if the beam is singly reinforced with the maximum amount of steel for transition control allowed by the Code if the bars has a steel strength of fy = 345 MPa. Determine the steel ratio of the section if the beam is singly reinforced with the maximum amount of steel for tension control if the bars has a steel strength fy = 345 MPa. Determine the number of pieces of 28 mm ᴓ bars required for the section if the beam is singly reinforced with the maximum amount of steel for tension control if the bars has a steel strength fy = 415 MPa.
A reinforced concrete circular water tank underground of 16 m in diameter, 4m depth water, the bottom slab is fixed wall, f=30 MPa, f-420 MPa, Ysoil=1.75 ton/m', Ø=35°, thickness of wall (t) =0.2m. Use the ultimate strength method. Compute: - The tensile strength when the water and soil presents at point A. - The vertical reinforcement (inside and outside). Free 16 m 2m 3m A Fixed
A 300 mm X 450 mm exterior beam is reinforced with 2 – Ø20 mm and 1 - Ø25 mm bars on the first layer of tension reinforcement (larger bar is at the middle), 2 tension reinforcement, 3 – Ø25 mm for compression reinforcement and Ø12 mm for stirrups. From analysis the depth of the tension zone is 344 mm, if the tension steel has a yield strength of 420 MPa and the compression steel has a yield strength of 414 MPa. Determine the following using all the NSCP provision (larger bar always governs the spacing) to check and layout the beam: Ø25 mm on the second layer of - A. The compressive stress in the concrete B. The depth of compression block C. Ultimate Moment Capacity of the beam
Bearing plate 1000 kN 2.The concrete post in Fig. (a) is reinforced axially with four symmetrically placed steel bars, each of cross-sectional area 900 mm2. Compute the stress in each material when the 1000-kN axial ++ ++ a a load is applied. The moduli of elasticity are 200 Gpa for steel and 14 Gpa for concrete. Steel Concrete 300 mm 300 mm Section a-a (a)
The reinforced concrete cantilever retaining wall is made with 3000 psi normal weight concrete and reinforced with Grade 60 galvanized steel. the main reinforcement rests flexural stresses in the stem and is specified as #7 bars every 18 inches along the length of the wall. The distribution seal distributes stresses along the length of the wall and is specified as #4 bars at 12 I spacing. The concrete cover is 1.5 everywhere. Calculate the developmental length for the main reinforcement using the basic equation (ACI 318 -19: 25.4.2.4). Assume no transverse reinforcement Ktr-->0). Is the main reinforcement embedded deeply enough in the footing to fully develop its yield strength in tension?
Determine the maximum and concrete and steel stresses at the point of maximum positive and negative moments. Assume a concrete cover of 40 mm, 10mm stirrups and clear distance between layers od 25mm.
Compute the stress at each segment of the pipe.
The tower in Figure is subjected to three compressive forces 4kN, 5kN, 6kN at joints G, E and C respectively. Calculate the stresses in MPa in members AC, CE and FD if the cross sectional area of each member is 2000mm2. Indicate if it is a tensile or compressive stress. show complete solution and fbd
Compute the wall stress in a 48-in. steel pipe 1/4 in. thick under a head of 400 ft oil (sp gr 0.82)
A rectangular concrete beam is 12 in. wide and has an effective depth (d) of 18 in. Compression steel is located 2.5 in. from the compression face of the beam and is two No. 8 bars. Calculate the design moment capacity of the beam, for f'c = 4,000 psi and fy = 60,000 psi. Solve for the following tension reinforcement amounts: a b C Three No. 10 bars in one layer Four No. 10 bars in two layers (Two No. 10 bars in each layer) Six No. 9 bars in two layers (Three No. 9 bars in each layer)
INELASTIC BENDING OF SINGLY REINFORCED CONCRETE BEAM SECTION *A trapezoidal concrete beam is casted with a compressive strength of about 20 MPa. The beam is reinforced with 3- 32 mm diamater bars in the tension zone with a yield strength of 275 MPa. The bar is located 100 mm from the bottom. Determine the nominal bending strength. Assume that the beam is symmetrical about the vertical axis with a depth of 600 mm, a top width of 500 mm, and a bottom width of 200 mm.

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