Calculate load distribution factor, Civil Engineering

Assignment Help:

Load Distribution Factor:

The formula for deriving at the number of repetitions of the standard axle load during a design period of n years is:

N =365 × A × VDF × F [(1 + r )n - 1]/r

where A = Number of commercial vehicles per day initially (both directions),

VDF = Vehicle Damage Factor,

F = Load Distribution Factor,

r = Annual rate of growth of traffic (in decimals), and

n =  Design period in years.

Thus, if a two lane road has a present commercial traffic of 4000 veh/day, and the design period is 15 years, the rate of growth of traffic is 7.5%, and the VDF is 3.5, the number of repetitions of standard axle loads during the design Period

N =365 × A × VDF × F [(1 + r )n - 1]/r

A = 4000

VDF = 3.5

F = 0.75 (Table 4.3)

r = 7.5% = 0.075

n = 15

Substituting, N = 365 × 4000 × .35 × 0.75 [1.07515 - 1]/0.075

= 365 × 4000 × 3.5 × 0.75 [2.96 - 1]/0.075

= 100 million

The million standard axles of repetitions is denoted by "msa".


Related Discussions:- Calculate load distribution factor

Cleanliness of surface - limitations of ultrasonic system, Define Cleanline...

Define Cleanliness of Surface - Limitations of Ultrasonic System? Sound energy transmission is greatly affected by marine growth on the surface of the concrete element. Ultraso

Of obstacles to both chaining and ranging.., #questof obstacles to both cha...

#questof obstacles to both chaining and ranging. ion..

Define the finish-to-start dependency, Sheet rock cannot be installed in th...

Sheet rock cannot be installed in the new house you are building until a building inspector approves the plumbing, electrical, HVAC, and insulation.  This is an example of:

#civil, what is whole circle barring

what is whole circle barring

Vibration in structures – resilient bearings, Q. Vibration in structures - ...

Q. Vibration in structures - resilient bearings? When railway tunnels are built close to buildings, ground-borne vibration is transmitted to buildingsthrough compression and sh

Concrete, What is Polymer Concrete?

What is Polymer Concrete?

Physics, A point charge q2 = -2.3 µC is fixed at the origin of a co-ordinat...

A point charge q2 = -2.3 µC is fixed at the origin of a co-ordinate system as shown. Another point charge q1 = 4.0 µC is is initially located at point P, a distance d1 = 6.0 cm fro

Drawing, how to draw an elipse

how to draw an elipse

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd