6.1 A four-span one-way slab is supported on 12-in.-wide beams with center-to-center spacing of 14, 16, 16, and 14 ft as shown in Figure-1. The slabcarries a superimposed dead load of 20 psf and a live load of 100 psf.Design the slab flexural reinforcement, using fc' = 3500 psi and fy = 60,000psi.Beamsslab design stripFigure-1-14'-0"--16'-0"'--16'-0''--14'-0"-Floor Framing Plan

depicts a four-span one-way slab supported on 12-inch wide beams with a center-to-center spacing of…

Answered: 6.1 A four-span one-way slab 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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(Double reinforced beam)A rectangular beam has b = 300 mm and d =490 mm. Concrete compressive strength ?? ′ = 27.6 ??? and steel yield strength ?? = 276 ??? . Calculate the required steel reinforcement area if the factored moment is 350kN-m
Given a simply supported reinforced concrete slab with the effective span lo=2.8 m. The slab is 90 mm thick and reinforced by $10@200 longitudinal bars. The material properties are f= 11.9 N/mm², f= 1.6 N/mm². fy=280 N/mm, and E, = 2.0 x 10 N/mm². Calculate the maximum load (per square meter) that the slab can sustain.
A simply supported 1 way slab having span of 3 meters is to carry the load for DL = 5kpa and LL = 4.8Kpa. If the concrete f'c = 28Mpa and rebar to be used is 10mm with fy = 276Mpa. a.) Determine the minimum thickness of the 1 way slab.(answer in millimeter in whole number) b.) Determine the Ultimate loading combination for the slab considering 1 meter strip?(answer in KN/m. in 3 decimal places ) c.) Determine the Ultimate moment for the slab considering 1 meter strip?(answer in KN-m. in 3 decimal places) d.) Determine the effective depth of the slab considering concrete cover = 20mmanswer in millimeter. in whole number e.) Determine the area of reinforcement for the slab based on the actual loadings.(answer in sq.mm. in 3 decimal places) f.) Determine the spacing of the rebar.(answer in millimeter(Don't round up, use actual value). in 3 decimal places)
A singly reinforced rectangular beam 300 mm wide and 600 mm deep is subject to a factored shear force Vu = 394 kN at the critical section for shear. The tensile bar centroid is 70 mm from the bottom of the beam. Calculate the required nominal shear strength (kN) of 10-mm-dia stirrups if lightweight concrete is used of strength 25 MPa.
The spiral column having a diameter of 500mm is reinforced with 8-22mm dia. Vertical bars. Clear steel covering is 40mm and diameter of spiral is 12mm. fc'= 28 MPa and fy= 415 MPa. Determine the steel reinforcement ratio in percent. Determine the spiral reinforcement ratio in percent. Calculate the axial load capacity of this column.
PROBLEM 2: A reinforced concrete beam has a simple span of 7m. It carries a uniformly distributed dead load (including its own weight) of 9kN/m, live load equal to 18kN/m . The beam is reinforced with 3D28mm bars and has a width of 250mm and an effective depth of 450mm. fc’=28Mpa and fy=345Mpa. Using the simplified calculation for Vc, what is the nominal shear capacity of concrete? At what section of the beam is the web reinforcement theoretically not required? At what section of the beam is the web reinforcement no longer required according to the NSCP? Draw the design details for shear of the beam from x=3m to x=3.5m.
A 130 mm x 220 mm timber wood is used for the beam shown. Take E = 8.22 MPa. w = 8.65 kN/m, L =7. a. Compute the maximum flexural stress in MPa. b. Compute the maximum shear stress in MPa. c. Considering Agoho with Fb = 26.3 MPa and Fv = 2.95 MPa, check if the section is adequate.
HELP ME SOLVE THIS REINFORCED/PRESTRESSED CONCRETE PROBLEM A 304.8 × 457.2 mm rectangular beam with straight tendons is subjected to an initial prestressing force of 1023.0 kN applied 83.82 mm. below the center. The beam is on a simple span of 9.1 m and carries a superimposed load of 12,258.9 N/m. Determine the initial and final stresses at the supports and at midspan
Design a circular spirally reinforced concrete column to support a design load Pu= 4893 KN and a design moment Mu=386 KN.m. f = 27.5 MPa and fy = 414 MPa. Show the cross section of the column including the reinforcement details in your solution.
The beam section shown in the Figure 3 will carry the same loading pattern in ProblemNo.3 , Figure 2(b). If the value of Pu = 175 kN and using design properties of f’ c = 30MPa and fy = 345 MPa, determine the following:a. The shear capacity of the concrete alone and the ultimate critical shear forceat the right side of the left (hinge) support (interior face);b. The theoretical spacing of 10-mm-diameter U-shaped stirrups as required bythe critical shear in part (a), if any.
A square footing 2.4 m x 2.4 m x 0.45 m thick supports a 300 mm square column at its center. Column loads are at service conditions DL = 326 KN, LL = 219 KN, fc' = 21 MPa, and fy = 415 MPa. Concrete cover to the centroid of steel reinforcement is 100 mm. Calculate the nominal one way shear stress in the slab
A reinforced concrete beam has a simple span of 8m. It carries a concentrated factored load, Pu, at midspan. The beam is reinforced with 3D25mm. It has a width of 300mm and an effective depth of 450mm. Neglecting the weight of the beam, and using the exact/detailed calculation for Vc, a. What is the ultimate shear capacity of concrete at a section 2m from the support? b. What should be the shear capacity of web reinforcement at the section 2m from the support? c. What is the maximum spacing of web reinforcement allowed by the code at the section 2m from the support if the diameter of stirrups is 12mm?

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