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 head loss due to friction, Determine the head loss due to fri...

Determine the head loss due to friction using the Darcy-Weisbach equation. The water is pumped at 3.0 gallons per minute, has a temperature of 60 °F and is pumped through a 1inch s

Plumbing technology, This assessment will test Learning Outcomes 3 and 4 as...

This assessment will test Learning Outcomes 3 and 4 as well as the component of Learning Outcome 1 as it refers to waste disposal for the Plumbing Technology. The student is expect

Explain the components of a rebound hammer, Explain the Components of a reb...

Explain the Components of a rebound Hammer? Several components of a rebound hammer are displayed in below Figure. 1. Concrete surface; 2. Impact spring; 3. Rider on gui

Show the filter below the revetment, Q. Show the filter below the revetment...

Q. Show the filter below the revetment? A filter placed between the revetment / protection works at the surface and the soil bed below the revetment / protection works. Main fu

Maintenance of water bound macadam roads, Maintenance of Water Bound Macada...

Maintenance of Water Bound Macadam Roads: The maintenance of water bound macadam surface consists of : filling potholes, ruts with additional material and adequately c

Whole barings, Ask question #Minexaple of wholeiwhole baring 100 words acce...

Ask question #Minexaple of wholeiwhole baring 100 words accepted#

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