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

Determine the limit state of serviceability, Determine the Limit State of S...

Determine the Limit State of Serviceability Cracking Cracking of concrete should not affect the appearance or durability of the structure. The criteria of limit state of cracki

Soil mechanics, what is the total volume required for the gravel material o...

what is the total volume required for the gravel material of 6.5mx2314mx0.1m with a relative density of 2.919 and a loose bulk density of 1668kg/m3

Waterway, What is linear waterway?

What is linear waterway?

Hydraulics, The atmospheric pressure is given 680 mm Hg at a certain mounta...

The atmospheric pressure is given 680 mm Hg at a certain mountain location of elevation 2000 m. air density is 1.007 kg/m3. Find the pressure in kPa.

Warm mix asphalt., how it different from hot mix asphalt . is it changes an...

how it different from hot mix asphalt . is it changes any performance compared to hot mix asphalt

Theory of structure, How to convert uniformly varying load to point load

How to convert uniformly varying load to point load

Bearings, what is the difference between whole circle bearing and reduced b...

what is the difference between whole circle bearing and reduced bearing?

Explain the hydraulic radius, Explain the Hydraulic Radius (R) A fluid'...

Explain the Hydraulic Radius (R) A fluid's cross-sectional area in flow divided by the wetted perimeter. For a circular channel flowing full and ½ full, R = D/4.

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