Please answer use nscp 2015 asap Situation 9: A floor system consist of a 100-mm concrete slab supported by continuous T-beam s with 9 m span 1.2 on centers asshown in figure. Web dimensions as determined by negative moment requirements, are bw = 280 mm and d = 500 mm. Concretecover is 70 mm from centroid of the bars. The beam is subjected to a maximum positive factored moment of 1080 kNm. Use f'c = 21MPa, fy 415 MPa. Unit weight of concrete is 23.5 kN/m. Use NSCP 2010 Provision=0.9 for all cases31. Which of the following will be the effective width of flange as specified in the NSCP 20102250 mm1880 mm1000 mm1200 mm32. Calculate the required tension steel area at the point of the maximum positive moment and the required compression steelarea6490 mm²7387 mm²6789 mm²7712 mm²33. Using tributary area method, what is the uniform load service dead load acting on the beam5.19 kN/m5.91 kN/m5.71 kN/m5.17 kN/m34. Calculate the uniform service live load on the beam195.6 kN/m193.2 kN/m183.4 kN/m177.8 kN/m

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Answered: Situation 9: A floor system consist of…

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 concrete floor slab 100mm thick is cast monotholic with concrete beams 2.0 m on centers. the beams have a span of 4.0m, web width of 259 mm and overall depth of 50 mm. the tensile reinforcement consists of 6-⌀20 mm bars in two rows with 25mm vertical clear spacing. use material strengths f'c=21MPa and fy=415MPa. calculate the ff considering a T-geometry: 1. effective flange width of an interior beam in mm 2. depth of uniform stress block at ultimate stage in mm to the nearest whole number 3. tensile steel strain compatible strain of 0.003
Subject: Reinforced concrete Design- Civil Engineering A rectangular beam has a width of 300mm and an effective depth pf 537.50mm to the centroid of tension steel bars. Tension reinforcements consists of 6-28mm bars in two rows, compression reinforcement consists of 2-22mm bars, fc' = 27.6MPa, fy = 414.7MPa, d'=60mm. The depth of compression block is _mm. Choices: A. 137mm B. 213mm C. 173mm D. 231mm
3) A concrete floor slab 100 mm thick is cast monolithic with concrete beams 2.0 m on centers. The beams have a span of 4.2 m, web width of 250 mm and overall depth of 450 mm. The tensile reinforcement consists of 4-∅25 mm bars in two rows with 25 mm vertical clear spacing. Use material strengths f’c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry: Effective flange width of an interior beam in mm = ___________ Depth of uniform stress block at ultimate stage in mm to the nearest whole number = ___________ Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places = __________
38 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. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 21 MPa and steel yield strength fy = 350 MPa for 20-mm bars and fy = 230 MPa for 16-mm bars. Determine the nominal moment capacity in kN∙m of the beam in positive bending. Write the answer in 2 decimal places only.
Design the reinforcement of the cantilevered slab (CS – 1) in Figure 3. The slab is to be used for terrace occupancy with a designed floor live load of 4.80 kPa. Use 12mm dia deformed bars as main reinforcement and 10mm dia bars for temperature reinforcement. Also, use fc’ = 20.7 MPa and fy = 276 MPa. Draw the structural details of the slab.
SITUATION A: The floor system shown has the following applied loads. Super Imposed Dead Load = 2.00 kPa Live Load = 1.90 kPa Slab Thickness = 100.00 mm Weight of Concrete = 24 kN/m3 Self-Weight of the beam = 1.92 kN/m Material Specifications: f’c = 21.00 MPa fy = 345.00 MPa Steel Cover = 50.00 mm What is the maximum positive moment of beam BE, acting on the midspan? in kN-m What is the maximum steel ratio of the section located at the supports? What is the actual steel ratio of the beam section at the supports? What is the ultimate moment capacity of the beam at the supports? in kN-m What is the effective flange width at the midspan? in mm What is the height of the compression block of the section at midspan? in mm What is the ultimate moment capacity of the beam at the midspan? in kN-m What would be the height of the CHB that can be placed on beam BE? Assuming the weight of the blocks is 2.30 kN/m per meter height? in meters
32 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. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 21 MPa and steel yield strength fy = 280 MPa for 20-mm bars and fy = 230 MPa for 16-mm bars. Determine the maximum steel ratio if the beam is singly reinforced in positive bending with the given material strengths and the tensile strain is limited to 0.004 upon crushing of concrete. Write the answer in 5 decimal places only.
Q2// A floor system consists ofconcrete slab supported by continuous beam h = 140mm , bw = 300mm,d = 550mm, f 28MPA, fy = with: %3D 420MPа. Determine the steel reinforcement required at mid span of interior beam to resist service dead load moment Ma = 320KN.m and service live load moment M = 250 kN.m %3! %3D 8m + 3m 4 3m 3m 1-1
Problem 5.23 With f, = 60,000 psi and f = 4000 psi, select the reinforcing for T beam AB for the floor system shown. Assume simple supports at A and B. The live load is to be 100 psf, while the dead load in addition to the concrete's weight is to be 80 psf. Concrete is assumed to weigh 150 lb/ft. The slab is 4 in. thick, d is 24 in., and b, is 16 in. (Ans. 3.84 in.², use 4 #9 bars) edge L. beam 5 ft 1 B T beams -4 @ 10 ft=40 ft- 5 ft 30 ft
TRIBUTARY METHOD OF LOAD DISTRIBUTION (3) 2. Consider the floor plan shown in Figure. The floor is 100mm thick F-6 @ 6.67' = 40 %3D C4 I- reinforced concrete. Determine the B2 GI B3 following: (a) load that acts on floor beam B1, (b) load that acts on beam B5, (c) the load acting on corner column C1, and (d) the load acting on interior B4 2 @ 10' = 20' B) C2 I- B5 –I- I G4 G2 G3 B1 5 @ 8'= 40' column C2 ©-I- C3 Ci 40' 20 *Neglect the weight of joists
Design Slab DEGH of the floor system shown below. Dead load pressure including the slab's weight is estimated at 5.3 kPa while live load pressure is 2.4 kPa. Use fc' = 21 MPa and fy = 345 MPa. The supporting beam is 350 mm x 500 mm. Use 12mm diameter bars. 6m A B 6m C 2.6 m D 2.6 m 2.6 m J E H K LL F I L
A rectangular beam of 230 mm width and effective depth mm diameter. The grade of concrete is M 20, grade of steel is Fe 500. Given that for M20 grade of concrete, the ultimate shear strength = 450 mm, is reinforced with 4 bars of 12 Tue = 0.36 N/mm2 for steel percentage of p D 0.25, and = 0.48 N/mm2 for steel percentage Tuc %3D p = 0.5. For a factored shear force of 45 kN, the diameter (mm) of Fe500 steel 2 legged stirrups to be used at spacing of 375 mm should be

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