Estimate prestress losses, Civil Engineering

Assignment Help:

Given:

beam deminsions:
flange width=22"
FLANGE THICKNESS=7"
WEB WIDTH=7"
SECTION HEIGHT=40"

f'c=5000psi
f'ci=3500psi
fpu=270ksi
Ap=eighteen 1/2" diam strands
superimposed load=.85k/ft: 40' simple span
Type I cement; moist cured
Pretensioned beam

Required:

1. Estimate prestress losses at midspan 90 days after release. (elastic shortening,creep,shrinkage,steel relaxation)


Related Discussions:- Estimate prestress losses

Practically the dielectric constant of air is taken as , Practically  the ...

Practically  the dielectric constant of air is taken as? Answer: The dielectric constant of air is taken as  unity.

Ballast and sub-ballast aggregates, I want to check the grammer of report a...

I want to check the grammer of report and edit it in better sentances , reduce the Plagiarism & edit the reference to havaerd style

Similarity between post and pre tensioned concrete, Similarity between post...

Similarity between post and pre tensioned concrete In the case of  pre-tensioned concrete members, a pattern of  small length and  small width cracks which are more in numbers

Factors that affect design facility of screw pumps, Question While sele...

Question While select screw pumps in polder scheme projects , what are factors that affect design facility of screw pumps? Answer Commonly used angles of inclination

Illustrate the types of prestressing, Illustrate the types of prestressing ...

Illustrate the types of prestressing we can classify prestressing into two forms  : (a)  longitudinal prestressing, and (b)  circular prestressing.

Explain chlorine residuals, Explain Chlorine Residuals Free Chlorine Re...

Explain Chlorine Residuals Free Chlorine Residuals: Cl 2 , HOCl, OCl-   Combined Chlorine Residuals: Chloramines (mono, di and tri chloramines) The disinfecting ability o

Compute the safe bearing capacity of a square footing, Compute the safe bea...

Compute the safe bearing capacity of a square footing 1.5 m × 1.5 m, located at a depth of 1 m below the ground level in a soil of average density 20 kN/m 3 .   = 20°, N c = 17.7,

Construction of concrete carriageway, Question If construction of conc...

Question If construction of concrete carriageway is carried out in summer, be capable of expansion joints be omitted? Answer If construction of concrete carriageway

Determine the stresses set up in the brass, Determine the stresses set up i...

Determine the stresses set up in the brass: A compound bar is constructed from three bars 50 mm wide by 12 mm thick fastened together to form a bar 50 mm wide by 36 mm thick.

What is corrosion inhibitors, Q. What is Corrosion inhibitors? Corrosio...

Q. What is Corrosion inhibitors? Corrosion inhibitors are chemical substances that when added in small concentrations, stop or decrease the corrosion or reaction of metalwith t

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