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

Interface between base plates and footings, Interface between base plates a...

Interface between base plates and footings Surface of footings is generally quite rough so that some levelling has to be carried out for base plates. Interface between base pl

Construction, #questidisadvantage of steelon..

#questidisadvantage of steelon..

Hollow core flush door, What is hollow core flush door?

What is hollow core flush door?

Use pot bearings instead of elastomeric bearings, Question Under which ...

Question Under which situation ought to engineers use pot bearings instead of elastomeric bearings ? Answer In an event of high vertical loads shared with large angl

Compaction to freshly placed concrete piles, Compaction to freshly placed c...

Compaction to freshly placed concrete piles In general practice, reliance is placed on the self-compaction of particularly designed concrete mixes to achieve adequate compact

Testing of aggregates, Testing of Aggregates: For use in pavement, ro...

Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol

Compare the values of active and passive earth pressures, A retaining wall ...

A retaining wall 12 metres high is proposed to hold sand. The values of void ratio and φ in the loose state are 0.63 and 30° whereas they are 0.42 and 40° in the dense state. Suppo

Intercepting drains, Intercepting Drains: Intercepting drains, also k...

Intercepting Drains: Intercepting drains, also known as catch-water drains, are provided in the uphill slope of hill roads to intercept the water and lead it to a natural wat

Water bound macadam, procedure of water bound macadam

procedure of water bound macadam

Remedial proposal to rectify situation, Question During deep excavatio...

Question During deep excavation , neighbouring ground water table is drawn down that might affect settlement of nearby buildings. What is remedial proposal to rectify situatio

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

User Account

All Pages