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

On-line storage vs. off-line storage, On-line storage vs. off-line storage ...

On-line storage vs. off-line storage Design of storage pond is commonly divided into off -line storage and on-line storage. The on-line storage concept includes inclusion of s

Design of masonry, Describe the different types of Ant proof courses

Describe the different types of Ant proof courses

Foundation at Different Levels, Foundation at Different Levels on soft rock...

Foundation at Different Levels on soft rock. what is minimum distance in two between footing ?

BUILDING CONSTRUCTION, GIVE IN DETAIL THE TREATMENT OF TOP SURFACE OF EARTH...

GIVE IN DETAIL THE TREATMENT OF TOP SURFACE OF EARTH FILLING..

Steel overlap in columns, where we can overlap steel in columns if we use ...

where we can overlap steel in columns if we use 50 or 60 bar diameter as overlap length.

Case of multi speed restrictions, Q. Case of Multi speed restrictions? ...

Q. Case of Multi speed restrictions? Position of Engineering indicators in case of Multi speed restrictions on one of the line in a Double line section where the first speed re

Explain foundation design discharge for a bridge, Q. Explain Foundation des...

Q. Explain Foundation design discharge for a bridge? To provide for an adequate margin of safety against any abnormal flood exceeding the design discharge (Q), the foundations,

Rcc, how many rcc is use for 1 brass?

how many rcc is use for 1 brass?

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