prestressed Concrete Presectation
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Transcript of prestressed Concrete Presectation
UTTARAUNIVERSITY
ASSIGNMENT
Submitted ByMd. Noor Zahidul Islam RiadM214151211001Md. Shahabuddin AhmedM214151211003Md. Mintu Molla
M214151211014Md. Rofiqul IsalamM21415121163Md. Lutfar RahmanM21415121165Md.SamsuzzamanM21415121647Md.Farid HossainM21415121999Shankar MandalM214151211295
Field work on Prestressed ContreteLutforSamsuzzmanMintuRiadFaridShabuddinShankarRofiq
Prestressed ConcretePre-stressed Concrete is a method for overcoming concrete’s natural weakness in tension .It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. It is often used in commercial and residential construction as a foundation slab. Pre-stressing tendons (generally of high strength steel cable) are used to provide a clamping load which produces a compressive stress that balances the tensile stress that the concrete compression member would otherwise experience due to a bending load.
Classification of Prestressed Concrete External or internal pre-
stressing Linear or circular Pre-stressing Pre-tensioning and post
tensioning Pre-tensioning system (fully
bonded Construction) Post-tensioning System (end
anchored constructions) Full pre-stressing or partial pre-
stressing
Practical work of pre-stressed concreteStirrup bar binding 2@12mm for T shape long direction bar
Front view of girderTendon Anchor
Tendon plate
Wire
Griper
Practical Work ofprestressed Concrete
Wire roll
Practical Work ofprestressed ConcreteConcrete casted
before pre-stress.Pre-stressed after
7 days
Tendone Pipe
Practical Work ofprestressed Concrete
After Pre-stressed front of side of Girder
Practical work of pre-stressed concrete Front view of End Section
Element Of Pre-Stress ConcreteAnchor
Griper
Anchor plate
Hole for Fluid