Answered: determine the maximum and concrete and…

determine the maximum and concrete and steel stresses at the point of maximum positive and negative moments 0.5 W 05W f= 30 MPa 8. ly 414MPA 250 mm 250 mm 3.5 m 35m 2-25mm 3-36mm 300 mm 52 250 mm

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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29 A square footing 2.2 m x 0.39 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 317 kN LL = 217 kN f’c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal one way shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPA.
A square footing 2.1 m x 0.31 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 389 kN LL = 234 kN f’c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the maximum ultimate bending moment in the slab. Write your final answer as whole number with the unit of kN-m.
A square footing 2.5m x 2.5 m supports a square column 300mm x 300mm at its center. Concrete cover to bar centroid = 100mm. Ultimate load combination is 1.2DL + 1.6L. Column loads aee service conditions:DL = 680 kN LL = 400kNf'c = 20.7 Mpa fy = 275 MPa Calculate the nominal punching-shear stress acting at the critical section of the footing slab if the thickness of the slab is 450 mm. (Correct Answer 1.99)
a 300 mm thick footing slab supports a 300 mm thick concrete wall carrying uniform service dead load of 214.31 kN/m and service live load of 145.94 kN/m. the base of the wall footing slab is 1.2 m from the ground surface. design parameters are as follows: ysoil = 16 kN/m^3, yconci = 24 kN/m^3. qa = 215.46 kPa. f'c = 27 MPa and fy = 420 MPa. 1. calculate the required center to center spacing of 16 mm bars for flexure if the maximum factored moment in the slab is 75 kN.m a. 150 mm b. 180 mm c. 210 mm d. NOTA 52. calculate the ultimate beam shear stress on the footing slab if the footing slab is 2.1 m wide. a. 1.25 MPa b. 0.74 MPa c. 0.87 MPa d. 0.96 MPa
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A 300 mm thick, 2.0 m wide footing slab supports a 200 mm thick concrete wall carrying uniform service dead load of 215 kN/m and service live load of 145 kN/m. Using f’c = 21 MPa and fy = 420 MPa. Calculate: a. The maximum bending moment Mu in kN/m on 1-m strip of the footing slab (correct ans: 99)b. The required amount of flexure bars 16 mm in diameter. As = mm^2 (correct ans: 1302)c. The required spacing of 16-mm diameter flexure bars if the required amount of tensile area is 1000 mm^2 (correct ans: 200)
The column shown is strained to -0.003 on the right hand edge and to +0.002 on its left hand edge. f’c = 4000 psi and fy = 60,000 psi. determine: 1. gives the compressive force resisted by the concrete 2. gives the nominal axial load that the column could carry 3. gives the nominal flexural load that the column could carry
A hollow, circular, steel column (E = 30,000 ksi) is subjected to a compressive load P. The column has length L = 8.0 ft and outside diameter d = 7.5 in. The load P = 85 k. If the allowable compressive stress is 7000 psi and the allowable shortening of the column is 0.02 in., what is the minimum required wall thickness t min?
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A rectangular footing 2.1 m x 3.6 m x 0.35 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 346 kN LL = 231 kN f’c = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPA. Answer: 1.83