Spalling reinforcement for pre stressing works, Civil Engineering

Assignment Help:

Spalling reinforcement for pre stressing works in anchor blocks

Reinforcement of anchor blocks in prestressing works usuallycomprises equilibrium reinforcement, bursting reinforcement and spalling reinforcement. Bursting reinforcement is used where tensile stresses are induced throughout pre-stressingoperation and maximum bursting stress takes place where stress trajectories are concave towardsthe line of action of the load. Reinforcement is required to resist these lateral tensile forces. For equilibrium reinforcement, it is needed where there are many anchorages in that pre-stressing loads are applied sequentially.

During pre-stressing, spalling stresses are produced in the region behind loaded faces of anchor blocks. At the zone between two anchorages, there is a volume of concrete surrounded by compressive stress trajectories. Forces are induced in opposite direction to applied forces and it forces the concrete out of the anchor block. Instead spalling stresses are set up because of the strain compatibility relating to the effect of Poisson's ratio.


Related Discussions:- Spalling reinforcement for pre stressing works

Offset(survey)., what is meant by the offsets and explain its type?

what is meant by the offsets and explain its type?

Calculate the amount of concrete - construction management, An electrical c...

An electrical contractor is preparing to place the duct bank concrete encasement for the high voltage feeders between manhole # 11 and # 12, total distance is 323-ft. The duct bank

Project costing for Engineering success, Hi I am looking for someone who ca...

Hi I am looking for someone who can help to solve my assignment questions in a subject called project costing and I need him to continue with me until I complete this subject. I a

Uses of medain mode and mean, what is the uses of mean mode and medain in c...

what is the uses of mean mode and medain in civil engineering

Local vehicle parapet strong enough to contain vehicles, Q. Local vehicle p...

Q. Local vehicle parapet strong enough to contain vehicles? Majority of local parapets are 1.1m high in addition they are designed to resist impact from a 1.5ton car moving at

Explain the typical wastewater characteristics, Explain the Typical Wastewa...

Explain the Typical Wastewater Characteristics? Total Suspended Solids = 100 - 350 mg/L (200 mg/l is the typical value)    BOD 5 = 100-300 mg/L (200 mg/L is the typical val

Enumerate the limit state of serviceability, Limit State of Serviceability ...

Limit State of Serviceability Deflection In the consideration of this limit state, the deflection of a structural member is considered. The code recommends that the deflection

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