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

Culverts - causeway and bridges, Culverts, Causeway and Bridges: Roads...

Culverts, Causeway and Bridges: Roads have to cross several natural streams like - rivers and canals. They also have to cross railway lines and cross-roads. The structures nee

Reason in checking the ratio, Reason in checking the ratio (i.e. design flo...

Reason in checking the ratio (i.e. design flow to full-bore flow > 0.5) in circular pipe design For checking of self-cleansing velocity for pipes, there is another criterion t

Bridge designing, Could someone please help me understand the basics of bri...

Could someone please help me understand the basics of bridge designing

Computer programming, write algorithm and flowchart that displays your name...

write algorithm and flowchart that displays your name 10 times

Amount of water that added to achieve the optimum moisture, Geotechnical pr...

Geotechnical project specifications require that the soil's optimum moisture content of 24% be maintained during the roadbed's construction.   The field moisture test finds that fi

Define reinforcing steel - limitations of ultrasonic system, Define Reinfor...

Define Reinforcing Steel - Limitations of Ultrasonic System? The sound velocity measurement taken parallel to the reinforcing bars embedded in the concrete will be markedly hig

Concrete, what is the heat of hydration and gel space ratio?

what is the heat of hydration and gel space ratio?

Matlab program, for calculating the bending moment in which the loading and...

for calculating the bending moment in which the loading and the length of continuous beam is taken from the user

Define the void ratio and specific gravity of particles, Derive the formula...

Derive the formula among soil moisture content (w), degree of saturation (S), specific gravity (G), and void ratio (e). Saturated clay has a water content of 40% and bulk specif

Explain the contracted rectangular weir, Explain the Contracted Rectangular...

Explain the Contracted Rectangular Weir Weir plate has sides which extend above the maximum water surface, directing the flow through an opening (b = weir length). Typically th

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