An eccentrically compressed column is of rectangular section. The dimensions of the column are b × h = 500 mm × 800 mm, as = a0 s = 45 mm, and l0 = 4.6 m. The strength of the concrete is fc = 14.3 N/mm2. The properties of the reinforcement are f0 y = fy = 300 N/mm2 and Es =2× 105 N/mm2. If the axial force Nc = 7000 kN and the moment M = 175 kN·m are applied on the column and the section is asymmetrically reinforced, determine As and A0 s.






An eccentrically compressed column is of rectangular section. The dimensions of the column are b ×...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD= 500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fc = 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two...
For a braced rectangular tied column with bars equally distributed along four sides, using the following design data: Axial dead load Column size 270x270 mm Pu = 981 kN Mu = 42.4 kN.m fc' = 20.7 N/mm², fy = = 414 N/mm2, y =0.6 Bar diameter 16mm with cross-sectional area 200.96 mm2
FIGURE Q2 shows cross-section of a rectangular doubly reinforced concrete beam. The concrete grade, fck is 20 N/mm2 and the steel grade, fyk is 500 N/mm2. Evaluate whether the beam has been designed as under reinforced section AND also determine if the section is able to resist an applied moment of 75 kN.m. [10 marks] 30 mm T 3H10 300 mm 5H12 30 mm 100 mm FIGURE Q2
A reinforced concrete beam has the following properties:
Beam width, b = 320 mm
Effective depth, d = 640 mm
Concrete strength, f’c = 21 MPa
Reinforcing steel strength, fy = 400 MPa
If the factored shear force at the critical section is 210,000 N,
compute the nominal shear carried
by the shear reinforcement.
EXERCISE - USD SHEAR 1. A reinforced concrete beam has the following properties: Beam width, b = 320 mm Effective depth, d = 640 mm Concrete...
1) [Design] A reinforced concrete column is to be sized to carry pure axial compressive load. According to ACI 318, what is the smallest possible cross-sectional area (Ag) that the column can use in design supporting an axial dead load of 200 kips (unfactored) and live load of 400 kips (unfactored). Use fc = 4,000 psi and fy = 60 ksi. Assume pe = 0.08 and ties for transverse reinforcement. Be sure to include the appropriate design factors and use...
A column 400 mm × 400 mm cross-section is reinforced with 4N32 bars and R10ties@160c/c. N32 concrete is used. A cover of 20 mm is provided. The column is subjected to an axial force of 600kN and a bending moment of 300 kN.m. The column is pinned at the bottom and is restricted at the top. The length of the column is 4.0 m. Check if the reinforcement provided is OK and if not re-design the column.
simply supported reinforced concrete beam of rectangular section is hung on the left end by a 400mm square post working in tension, as shown in the figure below. The beam supports a uniform dead load (DL) gf 100 KN/m (excluding its own weight) and upiform live load LL) of 40KN/m. The beam is reinforced with 025 longitudinal rebars with 40mm cleat cover to the stirrups. Material properties: fy 420 MPa, fe 25 MPa. Beam dimension b 400mm and h 600mm....
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3. Design the braced column (300 x 300 mm) of the ground floor as shown in Fig. Q3. Assume the minimum cover to the 10 links is 20 mm and φ32 longitudinal reinforcement is used. The materials strengths are fau 30 N/mm and fy 460 N/mm'. The base of the column is not designed to resist moment. The axial force in the column N- 2500 kN and the...
. Deisgn a reinforced concrete cross-section with unknown dimensions Problem 1 Design the steel reinforcement for the beam shown in Figure 1 that supports its own self-weight, a uninformly distributed dead load, a uniformly distributed live load, and a live point load located at midspan. In your solution, you should select the area of reinforcement, the number and size of reinforcing bars, and the section depth in order to receive full credit. Assume J 5,000 psi, fy 60,000 psi. 16...
Consider a floor plan and its overall dimensions as given in Assignment 2 and repeated in Figure 1 for convenience. The plan shows a series of spans in the Y-direction and one simple span in the X direction. The beam on axes 1, 2 and 3 could assumed to be simply supported. Concrete strength fc-30 MPa, maximum aggregate size is 20 mm, beams are of exterior exposure. For all beams, 10M stirrups are used. Reinforcement steel yield strength fy 400...