Deflection in concrete structures, Civil Engineering

Assignment Help:

Tension reinforcement leads to increasing deflection in concrete structures?

In BS8110 a modification factor is applied to span/depth ratio to take into account effect of tension reinforcement. Actually deflection of concrete structure is affected by stress and amount of tension reinforcement. To understand their relationship let us consider the subsequent equation relating to beam curvature:

Curvature = 1/r = e/ (d-x)

Where r = radius of curvature

  e = tensile strain in tension reinforcement

  d = effective depth

  x = depth of neutral axis

Provided that tensile strain in tension reinforcement remains constant, curvature of concrete structure increases with depth of neutral axis. It is perceived that depth of neutral axis rises with tension steel ratio. Consequently curvature of concrete section is directly proportional to the tension steel ratio. Additionally, largervalue of the depth of neutral axis enhances increased area of concrete compression so that effect of creep on deflection appears to become significant.


Related Discussions:- Deflection in concrete structures

Foundation, What are different type of foundation and their suitablity

What are different type of foundation and their suitablity

Calculate the amount put into saving account, Calculate the Amount put into...

Calculate the Amount put into Saving Account If you want to have $60,000 in 10 years, the amount that should be put into a 6.0% (effective annual rate) savings account now is m

Binomial distribution - exact probability, Binomial Distribution - exact pr...

Binomial Distribution - exact probability: For the binomial distribution having n = 10, y = 0.4, find p (X ≤ 4) using equations and verify that equation gives a better approxi

Self compacting concrete, what will be the w/c ration and cement/fly ash ra...

what will be the w/c ration and cement/fly ash ration for the particular mix design

What do you understand by percolation of water, Q. What do you understand b...

Q. What do you understand by Percolation of water? Percolation of water into the ground or embankment takes place, causing rise in water table and / or saturation of the body.

Building material, how to calculate the specific gravity and water absorpti...

how to calculate the specific gravity and water absorption of coarse aggregate

Propped cantilever retaining wall, how to combine moments from soil pressur...

how to combine moments from soil pressure and surcharge to get maximum moment

Parallel pipe systems or multipath pipeline problems, Parallel Pipe Systems...

Parallel Pipe Systems or Multipath Pipeline Problems Two or more sections of piping (branches) of different diameters, lengths and/or pipe materials originating and terminating

Cost-volume-profit and break even analysis, Cost-Volume-Profit and Break Ev...

Cost-Volume-Profit and Break Even Analysis: Cost-volume-profit analysis helps us to learn the behaviour of cost and profit in response to varying level of business activity. I

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