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