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

What are the uses of groynes, They stop, or slow down erosion, and stop lon...

They stop, or slow down erosion, and stop long shore drift. This, though, can have bad knock-on effects somewhere near.

Beam design of multi span fixed support, how can i define cont support beam...

how can i define cont support beam in multi span moment that mean Bending moment

Explain the design discharge for bridge waterway, Q. Explain the Design dis...

Q. Explain the Design discharge for bridge waterway? Design discharge for bridge waterway should be a flood of 50 year frequency. For very large bridges damage to which is like

Estimate total dissolved solids, Estimate total dissolved solids, Alkalinit...

Estimate total dissolved solids, Alkalinity and Hardness A sample of water from Brazos River at Brenham was collected and analyzed for water quality characteristics and the dat

Moment redistribution, how to draw the shear diagram after redistribution o...

how to draw the shear diagram after redistribution of moments

Modern trends in transportation, Modern Trends in Transportation: Rapi...

Modern Trends in Transportation: Rapid urbanization that is taking place in India is putting severe strain on the road system. Modern systems like exclusive bus lanes, light r

Sub-surface drainage, Sub-surface Drainage: Sub-surface drainage is i...

Sub-surface Drainage: Sub-surface drainage is intended to take away the water seeping through the pervious layers of the soil, causing a high water table, or in cut slopes of

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