A concrete building has 12 stories, each story is 3.2 m high. The facade column has 400 kN axial load per floor anda cross sectional area of 300mm×700mm. Calculate the shortening of the column at the ground floor level and thesixth floor when using concrete f'c= 25 N/mm and 40 N/mm?. Explain if there will be any effect on the facade.

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Answered: A concrete building has 12 stories,…

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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Answer in two decimal places please
Situation 5. A floor slab 100 mm thick is cast monolithically with beams 300 mm wide 500 mm deep spaced 1.5 m on centers, on simple supports over a span of 6.0 m. The floor supports a superimposed service dead load of 1.77 kPa and service live load of 4.8 kPa. Using f'c 21 MPa, long bar fy = 415 MPa, calculate: 12. Factored uniform load on a typical interior beam in kN/m using load factors of 1.2 for dead load and 1.6 for live load. A. 18.68 B. 17.35 A. 1,800 B. 1,500 C. D. 13. Using a T-beam geometry formed from monolithic construction, determine the effective flange width of a typical interior beam in mm. 22.48 25.78 A. 495 B. 560 C. 1,200 D. 1,900 14. Using a T-beam geometry, determine the required area in mm² of 16-mm-dia. flexure bars for maximum ultimate bending. C. D. 620 448
A rectangular concrete beam of cross section 100mm wide and 400mm deep is prestressed by a straight cable of span 6m, imposed load is 3.14kn/m, area is 36×10³mm²(Z=18×105mm³). Calculate working moment assuming the self weight of concrete as 24kn/m³?
A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. bottom is 70 mm. Use concrete strength f'c = 21 MPa and steel yield strength fy = 345 MPa for 20-mm bars and fy = 230 MPa for 16-mm bars. Determine the design moment capacity in kN-m of the beam Concrete cover to bar centroid at the top is 80 mm and at the in negative bending. Write the answer in 2 decimal places only.
A cantilever beam, 80 mm wide by 260 mm high and 9 m long, carries a load that varies uniformly from zero at the free end to 1400 N/m at the wall. Compute the magnitude of the maximum flexural stress. Answer must be in MPa.
A cantilever beam, 80 mm wide by 270 mm high and 7 m long, carries a load that varies uniformly from zero at the free end to 1200 N/m at the wall. Compute the magnitude of the maximum flexural stress. Answer must be in MPa.
A 250mm x 600mm 10m-simple span prestressed concrete beam has a uniformly distributed dead load of 8.50 kN/m in addition to its weight. The tendons are placed 100mm from the bottom of the beam and is subjected to initial prestress force of 1880 kN. The beam is used to carry a live load of 25 kN/m. If the unit weight of concrete is 24 kN/m3, determine the stress at the bottom fiber of the beam at midpan after 20% of the losses at its final stage CS Scanned with CamScanner
A 15 x 25 in. column is reinforced with four No. 9 (No. 29) bars, one in each corner as shown in Figure (a). The concrete cylinder strength is f. = 4000 psi and the steel yield strength is 60000 psi. Determine the axial load strength for zero eccentricity without subtraction of the concrete displaced by the steel, as well as with subtraction of the concrete displaced by the steel. E=0.003, E,-29000. Imperial Metric bar Linear Mass Density Nominal diameter Nominal area 25" bar size size (soft) Ib (in) (mm) (in') (mm") 2.5" -2.5" 0.250 - % 6.35 0.05 32 0.375 = % 9.53 0.11 71 0.500 = 4 12.7 0.20 129 0.625 = % 15.9 0.31 200 0.750 = % 19.1 0.44 284 0.875 = % 222 0.60 387 1.000 = % 25.4 0.79 510 1.126 - % 28.7 1.00 645 1.270- 1% 32.3 1.27 819 No.6 0.167 0.249 3 No. 10 0.376 0.560 #4 No. 13 0.668 0.994 Pn #5 No. 16 1.043 1.552 15" No. 19 1.502 2.235 #7 No.22 2.044 3.042 #8 No 25 2 670 3.973 As No 29 3.400 5.060 A's #10 No 32 4.303 6.404 e varies #11 No.36 5.313 7.907 1.410- 35.8 1.56 1.006…
A cantilever beam, 90 mm wide by 250 mm high and 7 m long, carries a load that varies uniformly from zero at the free end to 1300 N/m at the wall. Compute the magnitude of the maximum flexural stress. Answer must be in MPa.

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