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

State the total rankine active thrust per metre run, A wall with a smooth v...

A wall with a smooth vertical back 9 m high ropes a purely cohesive soil with  c = 10 kN/m 2 and γ = 18 kN/m 3 . State the total Rankine active thrust per metre run, the positi

State the method of pre- tensioning, State the method of Pre- Tensioning ...

State the method of Pre- Tensioning It is a method of prestressing concrete in which tendons are stretched or tensioned before concreting. In this form of construction, concr

Paint, different types of paints?

different types of paints?

Varigon theorem, Ask questio #Minimum 100 words accepted# what is varigon ...

Ask questio #Minimum 100 words accepted# what is varigon theorem and what are their application ? its examples

Explain the term - strength cement, Explain the term - strength cement ...

Explain the term - strength cement It should be appreciated that the tensioning arrangement shall have to be kept in place until tendons are cut. This shall depend on how quick

Computer programming, compare 2 numbers and print either the message identi...

compare 2 numbers and print either the message identifying the greater than number(or) the message starting that both number are equal

Stairs, describe details about stairs and its type also draw sketch?

describe details about stairs and its type also draw sketch?

Softening point of bitumen, Hi, i need discussion for softening point of bi...

Hi, i need discussion for softening point of bitumen 7.5 ?C

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