Traffic And Highway Engineering
5th Edition
ISBN: 9781337631020
Author: Garber, Nicholas J.
Publisher: Cengage,
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Chapter 20, Problem 11P
To determine
The tensile stress load located at interior of the slab.
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Q2/Using the ACI Code equations, determine the minimum slab thickness required for Panel (A
and Panel (B) of the floor system shown in Figure (2). Use fy-470MPA.
200mm
350mm
e 250mm
400mm dia.
Exterior beam
250x250mm
200mm
2500 x 1000mm
350mm
Panel (A)
Panel (B)
50mm
Interior beam
78 m
7.8m
78 m
78m
Figure (2)
7.5 m-
According to ACI code min allowed diameter of circular column is
450mm
450cm
300cm
300mm
* In design of slab shear if Vu more than ØVc then
increase slab thickness
use strirrups
decrease slab thickness
use additional longitudinal reinforcement
SCC and Plain Concrete
What is the purpose of the J ring test
Chapter 20 Solutions
Traffic And Highway Engineering
Ch. 20 - Portland cement concrete consists of what four...Ch. 20 - List and briefly describe the five main types of...Ch. 20 - What is the main requirement for the water used in...Ch. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10P
Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Repeat Problem 20-12, with the slab containing...Ch. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - An existing rural 4-lane highway is to be replaced...Ch. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27P
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- Repeat Problem 20-12, with the slab containing temperature steel in the form of welded wire mesh consisting of 0.125 in.2 steel/ft width. The modulus of steel, Es, is 30106lb/in.2 , Ec=5106lb/in.2 , and h=6inches .arrow_forward. Design the thickness at the edge and at the center of rigid pavement of the proposed ABCD Road to carry a wheel load of 7500 kg. Allowable tensile stress of concrete is 0.065f'. Assume f'c = 20 MPa.arrow_forward4.7 The cross section of a conventionally reinforced concrete one-way slab is shown below. Using ACI Table 9.5(a), answer the following questions: 5'-0" CANTILEVER TI 23-0 END-BAY T2 SPAN L3 INTERIOR-BAY a. What is the minimum slab thickness at end bays (T2)? Member Solid one- way slabs BM WIDTH Beams or ribbed one- way slabs TABLE 9.5(a)- - MINIMUM THICKNESS OF NONPRESTRESSED BEAMS OR ONE-WAY SLABS UNLESS DEFLECTIONS ARE CALCULATED Simply supported 23-0 END-BAY 12 €/16 CANTILEVER Minimum thickness, h Both ends One end continuous continuous Cantilever Members not supporting or attached to partitions or other construction likely to be damaged by large deflections 1/20 024 U/28 U/10 d/18.5 (21 €/8 Notes: Values given shall be used directly for members with normalweight concrete and Grade 60 reinforcement. For other conditions, the values shall be modified as follows: a) For lightweight concrete having equilibrium dersity, we, in the range of 90 to 115 loft, the values shall be multiplied…arrow_forward
- Design a one-way slab for the inside of a parkily garage. slab thickness 6" f= 4000 psi Gracke bo steel WLL= 180 pst %3D WoL=30 psf Not including the slab self-weignt. NWC.arrow_forward3. Per the following, are the breaks acceptable if the concrete is 4000 psi? ints 4110 Set 1 4050 4150 Set 2 4200 3810 Set 3 3750arrow_forward3. Per the following, are the breaks acceptable if the concrete is 4000 psi? 4110 Set 1 4050 4150 Set 2 4200 3810 Set 3 3750arrow_forward
- A slab with S/L = 0.40 has a thickness of 150 mm reinforced with 12 mm - diameterdeformed bars at spacing s = 200 mm on center. Assume f'c = 28 MPa and fy = 415MPa. Use clear cover of 20 mm. What is the governing steel ratio?arrow_forward4.6 A one-way slab is used typically in which of the following types of buildings? a. Museum b. Parking c. Library d. Warehouse 4.7 The cross section of a conventionally reinforced concrete one-way slab is shown below. Using ACI Table 9.5(a), answer the following questions: 5'-0" CANTILEVER 23-0 END-BAY SPAN L3 INTERIOR-BAY a. What is the minimum slab thickness at end bays (T2)? BM WIDTH 20 (191) Solid one- way slabs TABLE 9.5(a) - MINIMUM THICKNESS OF NONPRESTRESSED BEAMS OR ONE-WAY SLABS UNLESS DEFLECTIONS ARE CALCULATED Beams or ribbed one- way slabs 23-0 END-BAY Minimum thickness, h Simply One end Both ends supported continuous continuous Cantilever Members not supporting or attached to partitions or other Member construction likely to be damaged by large deflections U/20 (24 1/28 /10 (21 1/16 CANTILEVER 0/18.5 (18 Notes: Values given shall be used directly for members with normalweight concrete and Grade 60 reinforcement. For other conditions, the values shall be modified as…arrow_forwardCalculate the maximum stress at corner if 4600 kg wheel load is applied on cementconcrete pavement of thickness 180 mm. a) 40 kg/cm² b) 42.59 kg/cm² c) 43.54 kg/cm² d) 44.89 kg/cm²arrow_forward
- Q3c The basic concept of reinforced concrete column is to include a designed amount of steel bars in a predetermined pattern to give the concrete a reasonable amount of tensile strength. Describe the behavior of short column and long column under failing load.arrow_forwardProblem. A 130 thick one way RC slab is subjected to loads (wt. of slab is not included) as shown. Solve & Draw V & M diagram. Use: fy= 415 MPa; fc'=25 MPa; cc=27 mm. LL-2.3 KPa/DL = 5.5KPa 5.70m 25mm REBARS @ 230 mm O.C. 2m 24mm REBARS @ 130 mm O.C.arrow_forwardFind the safe static wheel load that a 360 mm thick rigid pavement could carry without any dowel across the joints if the allowable tensile stress of concrete is 1.5 MPa.arrow_forward
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