This document provides information about a field work assignment on prestressed concrete submitted by 8 students from Uttara University. It includes an introduction to prestressed concrete, how it overcomes concrete's weakness in tension. It then classifies prestressed concrete into different types. The practical work section describes the process of prestressing concrete including concrete casting, use of tendons, anchoring, and grippers. Diagrams show views of prestressed concrete girders and their elements like tendon pipes and plates.

1. UTTARAUNIVERSITY
ASSIGNMENT

2. Submitted By
Md. Noor Zahidul Islam Riad M214151211001
Md. Shahabuddin Ahmed M214151211003
Md. Mintu Molla M214151211014
Md. Rofiqul Isalam M21415121163
Md. Lutfar Rahman M21415121165
Md.Samsuzzaman M21415121647
Md.Farid Hossain M21415121999
Shankar Mandal M214151211295

3. Field work on Prestressed Contrete
Lutfor
Samsuzzman
Mintu
Riad
Farid
Shabuddin
Shankar
Rofiq

4. Prestressed Concrete
Pre-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.

5. 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

6. Practical work of pre-stressed concrete
Stirrup bar
binding
2@12mm for
T shape long
direction bar

7. Front view of girder
Tendon Anchor
Tendon plate
Wire
Griper

8. Practical Work of
prestressed Concrete
Wire
roll

9. Practical Work of
prestressed Concrete
Concrete casted
before pre-
stress.
Pre-stressed
after 7 days
Tendone Pipe

10. Practical Work of
prestressed Concrete
After Pre-
stressed
front of side
of Girder

11. Practical work of pre-stressed concrete
 Front view of End Section

12. Element Of Pre-Stress Concrete
Anchor
Griper
Anchor
plate
Hole for
Fluid