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

Assessing maintenance needs, Assessing Maintenance Needs: Maintenance...

Assessing Maintenance Needs: Maintenance needs can be assessed by a careful inspection of roads at regular intervals, observing defects such as : potholes cracks

Piers and piles, what is the difference between piers and piles?

what is the difference between piers and piles?

Define the equations for a contracted rectangular weir, Define the Equation...

Define the Equations for a Contracted Rectangular Weir If the rectangular weir is a contracted weir and the flow is restricted from passing freely through the weir opening, a r

Arrangement of piles in a pile cap to reduce bending moment, Arrangement of...

Arrangement of piles in a pile cap to reduce bending moment induced in piles Let's consider that piles are designed to intersect at a single common point in a pile cap. The re

Hydraulics, A tank with vertical sides contain 3m of water in the bottom, o...

A tank with vertical sides contain 3m of water in the bottom, overlain by 4m of oil with no intermixing. Draw pressure diagram due to the oil and water on one of the tank sides and

Joints in concrete pavements, Joints in Concrete Pavements: Concrete ...

Joints in Concrete Pavements: Concrete pavements in India are of the jointed plain (unreinforced type). The following types of joints are needed in them : (a) Transverse C

Define hammer efficiency and coefficient of restitution, Q. Define Hammer e...

Q. Define Hammer efficiency and coefficient of restitution? Hammer efficiency refers to ratio of kinetic energy of hammer to the rated energy (or potential energy). Basically i

Semi elliptical arch, how can i build a semi-elliptical arch out of bricks?...

how can i build a semi-elliptical arch out of bricks?

Determine the thickness of flexible pavement layer, Determine the thickness...

Determine the thickness of flexible pavement layer 2 given the following:  FACTS: Total Structural Number required = 7.0 Total number of layers = 2 Layer 1 consists of

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