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 the design of howe truss, Q. Show the Design of Howe truss? Design...

Q. Show the Design of Howe truss? Design of Howe truss is the opposite to that of Pratt truss in that the diagonal members are slanted in the direction opposite to that of Prat

Physics, A point charge q2 = -2.3 µC is fixed at the origin of a co-ordinat...

A point charge q2 = -2.3 µC is fixed at the origin of a co-ordinate system as shown. Another point charge q1 = 4.0 µC is is initially located at point P, a distance d1 = 6.0 cm fro

Steel and timber structures, design a tension member subjected to a pull of...

design a tension member subjected to a pull of 300KN using a channel section. the length of a joint available is only 400mm.check the condition of using lug angle for end connecti

Survey, what is road survey ?

what is road survey ?

Surveying., with a neat well labelled, explain reciprocal ranging in survey...

with a neat well labelled, explain reciprocal ranging in surveying.

Shallow foundations, The drainage system of a cantilever wall shown in Figu...

The drainage system of a cantilever wall shown in Figure As 1 became blocked after a heavy rainstorm and the groundwater level, which was originally below the base, rose to1.5 (m)

Explain about viscous flow loss, Q. Explain about Viscous flow loss? Ab...

Q. Explain about Viscous flow loss? Absorptive material comprises interconnected voids and pores into which sound energy will propagate. When sound waves pass throughthe materi

What is diaphragms in bridges, Q. What is Diaphragms in bridges? Diaph...

Q. What is Diaphragms in bridges? Diaphragms in bridges The principal function of diaphragms is to provide stiffening effect to deck slab in case bridge webs aren't situat

Storm water, what are the roles of civil engineers in storm water managemen...

what are the roles of civil engineers in storm water management

Functions of cap block drive cap and pile cushion, Question What are ma...

Question What are main functions of cap block drive cap and pile cushion in driven piles? Answer Cap block is fit amid hammer end and drive cap to manage hammer bl

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