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

Highway transportation, HIGHWAY TRANSPORTATION: Broadly, there are two...

HIGHWAY TRANSPORTATION: Broadly, there are two classes of roads: (a)        Urban, and (b)       Rural (Non-urban). Urban roads are those which are located within tow

Working from whole to part in survey, a clear illustration about working to...

a clear illustration about working to part principle and some examples

Belt conveyors, Belt Conveyors: Belt conveyors are used for conveying ...

Belt Conveyors: Belt conveyors are used for conveying materials on a continuous basis. The materials usually handled are coal, mineral ores and stone. They are commonly instal

Determine the active thrust on the wall by culmann method, A retaining wall...

A retaining wall with its face inclined at 75° with horizontal is 10 m high and retains soil inclined at a uniform surcharge angle of 10°. If the angle of internal friction of the

Mechanism of taking up loads for concrete paving blocks, Mechanism of takin...

Mechanism of taking up loads for concrete paving blocks  Paving for concrete blocks comprises closely packed paving blocks in pre-determined patterns and tiny joint spaces bet

True or false, an increase in consumer income will affect the supply of any...

an increase in consumer income will affect the supply of any given product

Roofs, Dimensions of trusses

Dimensions of trusses

Cumulative error, diffrence between cumilative compensative error

diffrence between cumilative compensative error

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