Q: Evaluate whether 9in of slab thickness for rigid pavement will beadequate on a rural expressway for 20-year analysis period if designcriteria are as follows:Pi = 4.5Pt =2.5ESAL over design period = 6* 10Concrete Elastic modulus, Ee = 5*106 Ib/in?%3DMean Concrete modulus of Rupture 700 Ib/in?Drainage Coefficient Ca = 1.0R = 0.95So = 0.3K = 170 Ib/in%3DLoad transfer coefficient = 3.2

Calculate the serviceability loss due to traffic is computed from an empirical relationship derived…

Q: Evaluate whether 9in of slab thickness for rigid pavement will be adequate on a rural expressway for 20-year analysis period if design criteria are as follows: Pi = 4.5 Pt =2.5 ESAL over design period = 6* 10 %3D Concrete Elastic modulus, E. = 5*10 Ib/in? %3D Mean Concrete modulus of Rupture 700 Ib/in? Drainage Coefficient Ca = 1.0 R = 0.95 %3D

Q: Evaluate whether 9in of slab thickness for rigid pavement will be adequate on a rural expressway for 20-year analysis period if design criteria are as follows: Pi = 4.5 Pt =2.5 ESAL over design period = 6* 10 %3D Concrete Elastic modulus, E. = 5*10 Ib/in? %3D Mean Concrete modulus of Rupture 700 Ib/in? Drainage Coefficient Ca = 1.0 R = 0.95 %3D

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: The following project and traffic data are available: Four-lane interstate highway Rolling terrain…

A: Step 1. Fatigue Analysis.1. Select a trial thickness (9.5 in.).2. Complete the information at the…

Q: 12.7 Figure P12.7 shows a concrete pavement with the thicknesses and elastic moduli as indi- cated.…

Q: 23. In the PCA design procedure of rigid highway pavements, the erosion damage analysis was devised…

A: We have to find out the correct option.

Q: The AASHTO present serviceability index (PSI) correlates the PSR to actual pavement performance in…

A: The original AASHO Road Test PSR serves as the foundation for the current serviceability index…

Q: Differentiate function of bound and unbound layer of flexible pavement.

A: Flexible pavement transmit load from wheel to the lower layer by grain to grain transfer which take…

Q: Design a HMA pavement structure for a 6-lane divided u o accommodate the traffic loads and…

A: First you need to calculate the ESAL's which is on the road during the plan life. For this put the…

Q: ment and was designed with a 8-inch slab, 90% reliability, 700 lb/in2 concrete modulus of rupture, 5…

Q: A flexible pavement section is designed using a CBR of 20 for the subgrade. During construction it…

A: Original pavement section: 8 inches HMA (Hot Mix Asphalt) over 12 inches crushed aggregate base over…

Q: A flexible pavement is being designed for a traffic load of 1.0 million 18-kip ESALs. The initial…

A: The design Traffic load = 1106 ESALThe initial Serviceability Index (PSI) = 4.0The terminal…

Q: 10. Refer to Figure III-1 attached. What would be the required slab thickness according to the…

A: we have to find out slab thickness according to the AASHTO 1972 design guide for the following given…

Q: Complete the table below and determine the total % damage contribution for fatigue and erosion from…

A: To calculate the expected repetitions for fatigue analysis (Se = 0.8 MPa), you can use the following…

Q: Design a three layer flexible pavement system using the CBR method, knowing hat the present AADT is…

A: Hi! Thank you for the question As per the honor code, We’ll answer one question since the exact one…

Q: 5. a) A flexible pavement is to be designed for a highway having two lane single carriageways. The…

A: Given: 2 lane singe carriageway CBR = 3% Commercial traffic = 265 CVPD Subgrade CBR = 3% Traffic…

Q: 2 a. The scales reading the weight of each truck were reading 10% low. Calculate the ESAL for the…

Q: Q7. Determine Structural Number and terminal serviceability index value of flexible pavement. Given…

Q: 12. Refer to Figure II-1 attached. A flexible pavement is to be evaluated according to the AASHTO…

A: W have to find out the approximated number of daily equivalent 18-kip axles to be allowed on this…

Q: The following figure shows concrete pavement with the layer thickness and elastic modulus as…

A: Mr=650 Psiload transfer coefficient =3.2Serviceability loss= 4.5 to 2.5drainage coefficient =0.91080…

Concept explainers

Drainage of Pavements

Pavement Drainage holds ample significance, as it prevents the accumulation of water or any liquid on the surface of pavements and ensures proper drainage system. With proper design and gradual slopes provided, the water gets easily removed from the surface into the drains, which are essential during heavy rains and unusual weather conditions keeping it less prone to accidents and increasing the durability of the pavement structure.

Question

Q: Evaluate whether 9in of slab thickness for rigid pavement will be
adequate on a rural expressway for 20-year analysis period if design
criteria are as follows:
Pi = 4.5
Pt =2.5
ESAL over design period = 6* 10
Concrete Elastic modulus, Ee = 5*106 Ib/in?
%3D
Mean Concrete modulus of Rupture 700 Ib/in?
Drainage Coefficient Ca = 1.0
R = 0.95
So = 0.3
K = 170 Ib/in
%3D
Load transfer coefficient = 3.2

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A conventional flexible pavement has been periodically checked for accumulated permanent deformations in various layers using a multi-depth deflectometer (MDD). The following subgrade soil rut data were obtained: Subgrade Soil Rut (in.) Number of 18-kip Axle Loads 0.1 10,000 0.225 100,000 Estimate the rut depth contributed by the subgrade soil for 1-million 18-kip axle loads.
1. During the AASHO road test, ONLY flexible pavements were constructed and tested.a. Trueb. False2. The AASHO present serviceability rating (PSR) was considered an objective quantity used to establish the performance of highway pavement in terms of applied traffic.a. Trueb. False3. The AASHTO present serviceability index (PSI) correlates the PSR to actual pavement performance in terms of applied traffic, and select distresses.a. Trueb. False4. There is only one AASHTO PSI equation that applies to both flexible and rigid pavements.a. Trueb. False5. The AASHTO PSI scale ranges from:a. 0-5b. 0-10c. 0-100d. None of the above
Rigid pavements distribute loads more efficiently than flexible pavements. True/False Please explain in detail
Determine the base thickness of plain concrete pavement (PCP) without dowelled joints using the information and charts provided be • Desired project reliability - 85% Subgrade design CBR-6% • Design period -30 years • Design Traffic 5.0*10* HVAG(B) Note: The information obtained from each table or figure must be stated in the examination script to obtain relevant marks. Table 3.1: Minimum subbase requirements for rigid pavements Design traffic (HVAG) Subbase type 125 mm bound Up to 10⁰ Up to 5x10 150 mm bound or 125 mm LCS Up to 1x10 170 mm bound or 125 mm LCS 150 mm LCS Greater than 1x 10 1 Under CRCP, a heavily bound subbase with an asphalt surfacing is an acceptable alternative 75 Maximum permitted value CBR % Effective subgrade strength used in concrete base thickness determinations 60 50 40 35 30 25 20 15 12 10 Concrete Base 200 Thickness 190 (mm) 180 8. Pavement type 7. 6. 5. PCP Dowelled & CRCP 260 250 240 230 220 210 170 160 150 140 150mm LCS 125mm LCS 8 10 Design subgrade…
26. Refer to Figure 8 Design 1A attached. For the design of a 4-lane interstate highway, the damage analysis shown in the figure was performed for a 9.5-inch thick slab according to the PCA design approach. This analysis indicates that the 9.5-inch thick slab: a. Only satisfies the fatigue damage condition b. Only satisfies the erosion damage condition c. Satisfies both fatigue damage and erosion damage conditions. d. None of the above the
Explain with sketches, the basis of Austroads mechanistic pavement thickness design method (i.e. what theories and assumptions are these methods based on). What is the major difference between the Austroads mechanistic-empirical (CIRCLY) design method and other mechanistic-empirical design methods?