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

Reinforced Concrete Design, design a 3-meter cantilever slab to carry a uni...

design a 3-meter cantilever slab to carry a uniform total dead load of 8.2KN/m^2 and a concentrated live load at the free end of 30 KN/m. f''c=28Mpa fy=420Mpa.

Mr Kamal Saxena, What is WBM road. How it is constructed?

What is WBM road. How it is constructed?

Pumps, largest centrifugal pumps

largest centrifugal pumps

Classification of timber based on grading, Classification Based on Grading:...

Classification Based on Grading: IS 883-1970 classifies the structural timber into 3 grades-select grade, grade I and grade II. The classification is depend on, defects, permi

Material of steel tendons, Material of steel tendons The material of s...

Material of steel tendons The material of steel tendons also must be of a high strength. Tendons should possess required material and geometrical properties so that a desired

Surveying, what are the basic two division of surveying

what are the basic two division of surveying

Explain the maximum spacing of piles, Q. Explain the Maximum spacing of pil...

Q. Explain the Maximum spacing of piles? One of the factors which affect the distribution of loads from the structures to each pile is assumption of flexibility of the pile ca

Explain foundation design discharge for a bridge, Q. Explain Foundation des...

Q. Explain Foundation design discharge for a bridge? To provide for an adequate margin of safety against any abnormal flood exceeding the design discharge (Q), the foundations,

Define types of deterioration in steel substructure, Define Types of Deteri...

Define Types of Deterioration in Steel Substructure There are 5 major types of deterioration in steel substructure in the marine environment: - Corrosion - Abrasion - Loo

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