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

Show elastomeric bearings, 1. Elastomeric bearings must not be placed one b...

1. Elastomeric bearings must not be placed one behind the other along the longitudinal axis of the girder on a single line of support under any circumstances. 2. Bearings of dif

Approach span to its neighbouring inner spans, Question-Why is span length...

Question-Why is span length ratio of end span, approach span to its neighbouring inner spans typically about 0.75?   Answer-From aesthetic point of view, odd number of span

Designing of access ramps for drainage channels, Question Designing of ...

Question Designing of access ramps for drainage channels, why must direction of access ramps is sloping down on the way to downstream ? Answer In designing of access

Effective span, what do u mean by effective span and its derivation?

what do u mean by effective span and its derivation?

Soil structure, what is soil structure and types of soil structure?

what is soil structure and types of soil structure?

Explain the bearing capacity failure, A continuous wall footing, 1 m wide,...

A continuous wall footing, 1 m wide, rests on sand, the water table lying at a great depth. The corrected N-value for the sand is 10. Verify the load which the footing can support

Explain the column effective length, Explain the Column Effective Length ...

Explain the Column Effective Length 1. For a single column, the effective length is simply the unbraced length * the k factor: 2. When comparing an effective length fo

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

Alum, Aalumsk question #Minimum 100 words accepted#

Aalumsk question #Minimum 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