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

Find the normal stress, Find the normal stress: Figure 1 shows the pro...

Find the normal stress: Figure 1 shows the projection of a rectangular prism ABCD, formed by adhesive bonding of two triangular prisms ABC and ACD. The state of stress in the

Compute interior or intersection angle, Compute Interior or Intersection An...

Compute Interior or Intersection Angle for the following circular curve:   Answer- I = 180° - 60° - 60°= 60

Internal force of preloaded fasteners, Q. Internal force of preloaded faste...

Q. Internal force of preloaded fasteners? Force in a bolt in a bolted joint relies on the preloading force applied to it at the time of the tightening operation. For example, w

Determine the term- shrinkage of concrete, Determine the term- Shrinkage of...

Determine the term- Shrinkage of Concrete Shrinkage of concrete is primarily due to gradual loss of moisture which results in change in volume. The shrinkage of concrete depend

Determine the size of the standpipe which should be used, A sample in a var...

A sample in a variable head permeameter is 8 cm in diameter and 10 cm high. The permeability of the sample is estimated to be 10 × 10 -4 cm/s. If it is desired that the head in th

Levelling, principles of levelling

principles of levelling

Distomat, write the brief description about distomat

write the brief description about distomat

Effect of concrete placing temperature, Effect of concrete placing temperat...

Effect of concrete placing temperature on early thermal movement Rate of hydration of cement paste is related to placing temperature of concrete. Rate of heat production is giv

Abrassion test., abrasion test is conducted to find what

abrasion test is conducted to find what

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