6.1 A set of dual tires is spaced at 34 in. center to center and carries a total load of 45,000 lb with a tire pressure of 100 psi. Assuming the pavement to be a homogeneous half-space, determine the ESWL for a pavement of 25 in. using (a) the Boyd and Foster method, (b) the Foster and Ahlvin method, and (c) Huang's chart based on equal contact radius. [Answer: 32.200 lb. 32.800 lb. 32.800 lbl

6.1 A set of dual tires is spaced at 34 in. center to center and carries a total load of 45,000 lb with a tire pressure of 100 psi. Assuming the pavement to be a homogeneous half-space, determine the ESWL for a pavement of 25 in. using (a) the Boyd and Foster method, (b) the Foster and Ahlvin method, and (c) Huang's chart based on equal contact radius. [Answer: 32.200 lb. 32.800 lb. 32.800 lbl

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: A flexible pavement is constructed with 5 inches of hot mix asphalt wearing surface (material…

A: The compressive stress is the pressure that distorts the material to decrease the material volume.…

Q: A flexible pavement is to be designed to last 10 years. The initial PSI is 4.2 and the TSI (the…

A: Design period = 10 yearsIntial PSI = 4.2Final PSI =2.5Soil resilient modulus, MR = 15,000 lb/in²For…

Q: QUESTION 4 Normally, a flexible pavement contains: surface layer+base layer surface layer+subgrade…

A: We have to determine answer of question 4 and question 5 in which we have to choose correct option…

Q: A flexible pavement is known to have a structural number of 4.0 and a soil resilient modulus of…

A: According to given data A flexible pavement is known to have a structural number of 4.0 anda soil…

Q: 2. The AASHO present serviceability rating (PSR) was considered an objective quantity used to…

A: Question) The AASHO present serviceability rating (PSR) was considered an objective quantity used…

Q: ********** Problem 1 The total load on a tridem axle is 44 kip. Consider a p, of 2.5 and SN of 4.…

A: Tridem axle load = 44 kipsTerminal servicibility, Pt = 2.5Structural number, SN = 4To find:The EALF…

Q: : Fill in the following blanks: 1. . is a collapse of pavement structure or a breakdown of one or…

A: 1. Pavement Failures:a. Structural Failure: Occurs when a collapse of the entire structure or a…

Q: Is a measure of the relative effectiveness of a given material to function as a structural component…

A: The pavement is classified into two, they areFlexible pavement, andRigid pavementThe flexible…

Q: Determine the required thickness of rigid pavement using the ASSHTO method according to the…

A: Rigid pavements are inflexible. they don't flex a lot under stacking like adaptable asphalts. They…

Q: A flexible pavement is constructed with 5 inches of hot mix asphalt wearing surface (material…

A: Flexible pavement: Flexible pavement is made out of a bituminous material surface course and basic…

Q: Compute the thickness of a flexible pavement for a wheel load of 55 kN, if the allowable bearing…

A: Given: Wheel load Bearing pressure at base Contact area radius To find: Thickness of flexible…

Q: A homogeneous half-space pavement is loaded by a set of dual tires that carries a total load of…

Q: A flexible pavement is designed with 4 inches of sand-mix asphalt wearing surface, 6 inches of…

A: Thickness of sand-mix asphalt wearing surface = 4 inThickness of dense-graded crushed stone base = 6…

Q: Using Stochastic Concept compute the pavement design required for a 9,000lb wheel load and 95 %…

A: Given ,Wheel load=9,000 lbreliability=95 %mean strength=600 psistandard deviation=50 psi

Q: ou have been asked to design a flexible pavement and the following daily traffic is expected for…

A: We are given SN = 5 TSI = 2.5design period = 15 years6376 Passenger Car375 18 wheel trucks225…

Q: lexible pavement has hot mix asph

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: Using the AASHTO rigid design procedure, design a pavement for a provincial road with an expected…

A: Given;ESAL = 20106 ESALS/yrElastic modulus of concrete (Ec) = 5106 PsiModulus of rupture of concrete…

Q: Traffic loading in the flexible pavement design equation is equal to the number of vehicles that use…

A: Flexible pavement consists of a surface layer of bitumen-bound aggregate (asphalt concrete), several…

Q: Q2-a) Design a flexible pavement for average traffic of 1000 vehicles exceeding 3 tons loaded…

A: Solution;

Q: A rigid pavement is on a highway with two lanes in one direction, and the pavement is conservatively…

A: Thickness of pavement (D) = 11 inch Modulus of elasticity, Ec = 5,000,000 lb/in2 Concrete modulus…

Q: If the pavement structure number (SN) is equal to 1 and the terminal serviceability index (TSI) is…

A: Given: Structure Number is 1. The terminal serviceability index is 2.5. The tandem axle load is…

Q: city of 5 million lb/in2, a modulus of rupture of 600 lb/in2, a reliability of 85%,a standard…

A: According to given data subgrade reaction of 200 lb/in3 slab thickness of 8 inches a load transfer…

Q: Take a look at the many techniques available for assessing the quality of bitumen used in flexible…

A: Introduction: Bitumen is a thick, viscous petroleum-based hydrocarbon found in deposits like oil…

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: Q3 Truck A has two single axles. One axle weighs 12,000 lb and the other weighs 23,000 lb. Truck B…

A: Consider the given data 18 kips ESALs for vehicle, considering Table 4.2 and 4.3

Q: Compute the thickness of a flexible pavement for a wheel load of 55 kN, if the allowable bearing…

A: Given, Wheel load (P) = 55kN Equivalent radius = 170mm Allowable bearing pressure(f)= 0.15mpa Find…

Q: Examine the many methods for determining the quality of bitumen used in flexible pavements.…

A: The tests performed on bitumen to evaluate its quality are as follows: 1.Ductility test,…

Q: Calculate the following values using the one-layer equation Delta_{x} = (p(1 + mu) * a)/E_{1} *…

Q: Discuss the structural components of a flexible pavement

Q: With a 12-year design life, a flexible pavement was developed for the following daily traffic: 1300…

Q: solve on paper

A: Step 1:Step 2:Step 3:

Q: Discuss numerous tests performed for the quality of bitumen used in flexible pavements.

A: Various laboratory tests are conducted on the bitumen specimen in order to check the quality…

Concept explainers

Design of pavements

Pavement is a structure that is made up of different layers such as sub-base course layer, base course layer, binder course, and a surface course formed with different materials such as gravel, above the subgrade soil constructed to act as a path or carriageway enabling the movement of vehicles. The surface of the pavement should possess characteristics such as adequate friction, light reflection, and drainage. The pavements are classified based on structural design into rigid pavements, flexible pavements, composite pavements, and unpaved pavements. The process of determining a suitable pavement type, its constituent layers, and its thickness is called pavement design.

Question

6.1 A set of dual tires is spaced at 34 in. center to center and carries a total load of 45,000 lb
with a tire pressure of 100 psi. Assuming the pavement to be a homogeneous half-space,
determine the ESWL for a pavement of 25 in. using (a) the Boyd and Foster method,
(b) the Foster and Ahlvin method, and (c) Huang's chart based on equal contact radius.
[Answer: 32,200 lb, 32,800 lb, 32,800 lb]

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given

VIEW

Step 2: a) Calculate ESWL by Boyd and Foster method

VIEW

Step 3: b) Calculate ESWL by Foster and Ahlvin method

VIEW

Step 4: c) Calculate ESWL by Huang chart method

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 13 images

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

Q5. Given the following information: A concrete pavement for two lane highway has doweled joints and no concrete shoulders. The modulus of subgrade reaction is 200 pci (54.2MN/m3), and the modulus of rupture is 650 psi (4.5Mpa). Assume a load safety factor of 1.1. truck weight distribution data for single axle load is as follows: Axle load(kips) 1 Single axles 28 Multiplied by LSF (1.1) 26 24 2 Expected repetitions 3 Erosion analysis Allowable repetitions 30.8 5,913 28.6 12,483 26.4 15,111 22 24.2 102,492 Using a trial thickness of 8 in. Fill in the empty spaces using PCA design method 4 6. Erosion factor Erosion percent 5
A flexible pavement is to be constructed with a inches of sand-mix asphaltic wearing surface, b inches of emulsion/aggregate-bituminous base, c inches of crushed stone subbase. The base has a drainage coefficient of 0.90, while the subbase drainage coefficient is 1.0. What values of a, b, and c will NOT satisfy SN deign value of 4.1. О a. 5, 9, O b. 2, 9, О с. 5, 8, O d. 5, 7, О е. 3, 8, O f. 4, 7, O g. 4, 9, O h. 3, 9, O i. 3, 7, O j. 6, 8, and 9 and 9 and 9 and 9 and 10 and 10 and 9 and 10 and and 10 10
Q2) A wheel load with circular area has a radius 6 in. and uniform pressure 552 kPa is applied on a two-layer system, consists of asphalt layer has an elastic modulus of 350000 psi and stabilized subgrade has elastic modulus 70000 psi. The subgrade can support a maximum vertical stress allowing for allowable number of stress repetitions of 2.5 x 109 before occurring of permanent deformation. Calculate the required thickness of a full-depth pavement, deflection in pavement and the critical tensile strain at the bottom of asphalt layer.
Solve this asap...
I need the answer quickly
Mechanistic design procedure is based on the assumption that a pavement can be modelled as multi-layered elastic or viscoelastic. Discuss the combination of Visco-elastic considerations assumption in pavement design procedure.
None
2 a. The scales reading the weight of each truck were reading 10% low. Calculate the ESAL for the following truck, assuming flexible pavement for both the axle/axle group weight and the weight increased by 10% 12,000 lbs 40,000 lb shoporst 20,000 b. Calculate the ESAL for the above truck, assuming rigid pavement. 20,000
Show complete solution and clear explanation thanks A rigid pavement of the proposed provincial road is to be used to carry a maximum wheel load of 60KN. Neglect the effect of dowels f'c=20MPa. Allowable tensile stress of concrete pavement is 0.6f'c. Calculate the allowable tensile stress of the concrete pavement and thickness of the pavement
The design equations for flexible pavements were determined as a result of laboratory experiments. True False
12. Refer to Figure II-1 attached. A flexible pavement is to be evaluated according to the AASHTO 1972 design guide. The existing pavement has a weighted structural number=3.4, a regional factor=2.0, and a soil support value=4.5. What would be the approximated number of daily equivalent 18-kip axles to be allowed on this road for a 20-year analysis period?a. 10b. 33c. 100d. 1490
A dual wheel having a load per tire of 4000 Ib, 80 psi pressure and μ = 0.5. Calculate thetotal pavement deflections due to the dual wheel by two layer theory at the followingradial distances from the centerline of one tire: r=0, 7,14. Assume that E1 = 10 E2