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

Analyse the state of stress at the critical section, Analyse the state of s...

Analyse the state of stress at the critical section: A prismatic bar of circular section with 80 mm diameter is subjected to bending moment of 5 kN-m and a torque of 7 kN-m. A

General, hi, im interested in doing engineering after i finish school but i...

hi, im interested in doing engineering after i finish school but im just wondering what is involved in it? im interested in the math side of it and i know there is a certain amount

What do you mean by no fines concrete, Q. What do you mean by No fines conc...

Q. What do you mean by No fines concrete? Sometimes no fines concrete is used in houses due to its good thermal insulation properties. Essentially no fines concrete comprises c

Calculate the fuel consumed, A 160-HP Diesel engine (peak fuel consumption ...

A 160-HP Diesel engine (peak fuel consumption = 0.04-gal/HP-hr) hydraulic excavator operates on a cycle time of 20 seconds during a 50-min/hr.  During the filling of the bucket cyc

Mr Kamal Saxena, What is WBM road. How it is constructed?

What is WBM road. How it is constructed?

Rmc, about rmc and what are the safety measures taken and which licences ar...

about rmc and what are the safety measures taken and which licences are required

Role of each mode of transport, Role of Each Mode of Transport: Each ...

Role of Each Mode of Transport: Each mode of transport has its own role to play in a country. The role of each is as under: Roads : Road transport carries 80 per cent of

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