An RCC short column (with lateral ties) of rectangular cross-section of 250 mm x 300 mm is reinforced with four numbers of 16 mm diameter longitudinal bars. The grades of steel and concrete are Fe 415 and M 20, respectively, Neglect eccentricity effect. Considering limit state of collapse in compression (IS: 456 2000), the axial load carrying capacity of the column (in kN, up to one decimal place), is_

An RCC short column (with lateral ties) of rectangular cross-section of 250 mm x 300 mm is reinforced with four numbers of 16 mm diameter longitudinal bars. The grades of steel and concrete are Fe 415 and M 20, respectively, Neglect eccentricity effect. Considering limit state of collapse in compression (IS: 456 2000), the axial load carrying capacity of the column (in kN, up to one decimal place), is_

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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A reinforced concrete beam (see figure)is acted on by a positive bending moment ofM = 160 kN . m. Steel reinforcement consists of4 bars of 28 mm diameter. The modulus of elasticityfor the concrete is Ec = 25 GPa while that of the steelis Es = 200 GPa.(a) Find the maximum stresses in steel and concrete.(b) If allowable stresses for concrete and steel areσac = 9.2 MPa and σas = 135 MPa, respectively,what is the maximum permissible positivebending moment?(c) What is the required area of steel reinforcement,As, if a balanced condition must be achieved?What is the allowable positive bending moment?(Recall that in a balanced design, both steel andconcrete reach allowable stress values simultaneouslyunder the design moment.)
An axial load P is supported by a short steel column, which has a cross-sectional area of 10500 mm2. If the average normal stress in the steel column must not exceed 140 MPa, determine the minimum required dimension “a” so that the bearing stress between the base plate and the concrete slab does not exceed 11 MPa.
Allowable Compressive Stress A structural column Z section having a length of 10 m has an area of 600mm^2, Ix= 120x10^6 mm^4, Iy= 50x10 6 mm^4 and Ixy- -75x10^6 mm^5, Fy - 250 MPa. a) Determine the minimum moment of inertia. b) Determine the maximum moment of inertia. c) Determine the allowable axial stress. d) Determine the factor of safety. .....
A rectangular beam which is limited to 350 mm by 650 mm is reinforced at the compression side with As’ = 1,000 mm2and on the tension side As = 4,000 mm2. The beam has an effective depth of 510 mm and its neutral axis is located at 127.84 mm below the top of the beam. Assume steel in tension yields but that in compression does not yield. F’c = 35 MPa, β = 0.81, fy = 400 MPa. Steel covering on top is 50 mm. Determine stress of steel in compression. Determine the depth of compression stress block. Determine the moment capacity of the beam.
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A beam has a width of 200mm and a height of 250mm and is loaded as shown. Compute the maximum shear stress. Show computation and present detailed drawings/FBD’s illustrating your solution.
Determine the maximum and concrete and steel stresses at the point of maximum positive and negative moments
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