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

Shear force, Shear distribution for I section

Shear distribution for I section

Compaction, describe how quality control is maintained in a rolled fill dam...

describe how quality control is maintained in a rolled fill dam

Determine the Critical Euler Buckling Load, a) Determine the critical Eule...

a) Determine the critical Euler buckling load of a solid aluminium rod of 12 mm diameter if it has a length of 1.0 m between pin-ended supports. (E = 70000 N/mm2)       b) A

Light and rapid rail transit, Light Rail Transit (LRT) Light Rail Tra...

Light Rail Transit (LRT) Light Rail Transit is also known by the name train. LRT can be run on the surface if road space is available (as in Kolkata) or as elevated, with pil

Structural analysis and design, Scenario You are working as a structural...

Scenario You are working as a structural technician and have been charged with a range of jobs   involving analysis and design of a number of structural members. Task 1 a)

Planning of water transport facilities, Planning of Water Transport Facilit...

Planning of Water Transport Facilities: Definition of Terms In water transport system, a number of terms are used. It is necessary for a civil engineer to know the pr

Constriction of waterway at bridges, Q. Constriction of waterway at bridges...

Q. Constriction of waterway at bridges? Constriction of waterway at bridges is effected by extending the approach banks to cover spill area or, in addition, part of active chan

Guiding considerations in planning, Guiding Considerations in Planning: ...

Guiding Considerations in Planning: The following factors have a bearing on planning water transport facilities : (a)        Availability adequate land to accommodate the

Construction material, 4. Calculate the loose volume of material needed to ...

4. Calculate the loose volume of material needed to fill in the trench as sketched below. The following information is also known: [7] o Length of trench = 250 m o Trench

Properties of bricks, Properties of Bricks The required properties of g...

Properties of Bricks The required properties of good bricks are following: A.   Color: Color should be bright and uniform. B.   Shape: Bricks should have plane faces.

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