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

Flooring, construction detail of all types of flooring

construction detail of all types of flooring

Explain the corrosion by the action of bacteria, Explain the Corrosion by t...

Explain the Corrosion by the Action of Bacteria? Corrosion can also be accelerated by the action of bacteria.  In the absence of oxygen, sulphate-reducing bacteria can grow, an

Explain the toxic characteristics - hazardous waste, Explain the Toxic Char...

Explain the Toxic Characteristics - Hazardous Waste - From the results of either  - Extraction Procedure(EP) toxicity (prior to March 1990) or Toxicity Characteristic Leachi

Light-weight aggregate prestressed concrete, Light-weight Aggregate Prestre...

Light-weight Aggregate Prestressed Concrete The use of  light-weight aggregate concrete for prestressed concrete construction is well established. The main advantage of  light-

Manhole covers – triangular halves, Manhole covers - triangular halves ...

Manhole covers - triangular halves Manhole covers are usually made up of two pieces of triangular plates to form a square cover. One can wonder why two rectangular halves are u

Immersed tube method for underwater crossings, Immersed tube method for und...

Immersed tube method for underwater crossing includes the following basic construction steps: (i)  Prefabricating long tunnel units (concrete orsteel shell) in a dry-dock or shi

Strength of Materials, Describe the process of yielding and state the effec...

Describe the process of yielding and state the effect work hardening has on the yield point of mild steel using suitable sketches where appropriate.

Quality control of concrete roads, Quality Control of Concrete Roads: ...

Quality Control of Concrete Roads: Concrete roads require a very high degree of quality control. The following aspects need to be checked regularly: (a) Strength, shape an

Integration of the strain settlement, All soils subjected to stress undergo...

All soils subjected to stress undergo strain. This will be taking place within the soil skeleton. This strain is caused by rolling, slipping, sliding and crushing at the particle c

Define influence lines, Define Influence lines Provides information...

Define Influence lines Provides information at a single point on a beam Can be used for: - Reactions - Internal shear forces - Internal moment Indicate

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