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

Calculate uniform annual cost for maintenance and repair, A contractor purc...

A contractor purchased a Caterpillar D-13 dozer for $100,000 and owned it for five years. The annual cost for maintenance and repair is provided in the Table. With annual interest

Underwater problems in bridge construction, Q. Underwater problems in bridg...

Q. Underwater problems in bridge construction? The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as binding

Show the functions of wet wells, Q. Show the Functions of wet wells? We...

Q. Show the Functions of wet wells? Wetwells are designed to store provisionallysewage/water before it is pumped out. They are generally provided for sewage and stormwater pump

Construction equipments, what is preventive maintenance and state its advan...

what is preventive maintenance and state its advantages

Concrete technology, chemical compositions of Rapid Hardening Cement

chemical compositions of Rapid Hardening Cement

IRC Class AA loading in existing industrial areas, For IRC Class AA loading...

For IRC Class AA loading in existing industrial areas, what is load (kN/m) has to applied base don the wheel loads. especially raft foundation & roads are at same level.

Traditional marine piling system of steel tubular pile, Question What i...

Question What is problem in traditional marine piling system of steel tubular pile with concrete infill and what are key possible remedial measures? Answer In design

What is the external load acting on a pre-stressed beam, What is the extern...

What is the external load acting on a pre-stressed beam In the elastic range, a variation in the external load acting on a pre-stressed beam results in a change in the location

Total station - uses and mining, Total station - uses and mining: Use...

Total station - uses and mining: Uses:- Total stations are mainly used by land surveyors and Civil Engineers, either to record features as in Topographic Surveying or to

Drawing, parabola by offset method

parabola by offset method

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