HIGH FLOOD LEVEL BRIDGE CONSTRUCTION

CONSTRUCTION OF HFL BRIDGE

1. A Presentation on Practical Training taken at DURATION: 23/05/2016 to 23/07/2016 SUBMITTED BY : TEJPRAKASH KUMAWAT Final Year B.Tech (Civil) SUBMITTED TO : DEPARTMENT OF CIVIL ENGG. DEPARTMENT OF CIVIL ENGINEERING GOVT ENGINEERING COLLEGE BANSWARA HIGH FLOOD LEVEL BRIDGE ACROSS MAHI RIVER

2. Details Of The Project: Site location:- HFL Bridge across Mahi river, Pipalkhut , Pratapgarh abutment type:- Conterfront Type. Bearing: - POT/ PTEF Bearing. Girder: - Precast PSC Girder . Handrail: - Steel Hand rail with welded mesh. Reinforcement: – HYSD Bar ( 8 mm To 32 mm). About the project :- Construction of HFL bridge across Mahi river at Chain age 118+363 at pipalkhut on Pratapgarh padi road (National highway NH-113). Construction Company :- Dilip Buildcon Ltd. , Bhopal Project In charge:- Mr. P.K. Mishra Project Engg .:- Mr. Ramesh Babu Expect Cost:- Rs. 12 cr after dismantling. Date of Initiate:- 26 –Apr-2014 Date of Completion:- 24-Oct- 2016 Bridge length- 360 m span- 12 ( 12×30) m  

3. CONTENT Excavation work for raft Raft of abutment and pier Pier Pier cap Abutment Pedestal Place for jack Girder launching slab

4. EXCAVATION WORK FOR raft A raft foundation is a type of foundation that spreads the load from a building or structure over a large area.   Raft foundations are also used to reduce the settlement of structures located above highly compressible deposits. R aft are usually at some depth in the ground ,a large volume of excavation may be required .

5. Fig: excavation work for foundation

6. Raft of abutment and pier Level the ground Pcc of M 15 grade concrete Place the reinforcement as per drawing Cover =75mm. Height = 1.1 m

7. Fig: Reinforcement details of raft

8. Fig: Reinforcement cage

9. PIER Multi-span bridges require piers to support the ends of spans between abutments transfer load of slab,girder,piercap to raft Fig: pier

10. Fig: details: of pier

11. PIERCAP The upper or bearing part of the pier, usually made of concrete or hard stone; designed to distribute concentrated loads evenly over the area of pier . The width of pier cap depends upon the width of carriageway, its size depends upon the live load and dead load bridge capacity Grade of concrete M35 Quantity of concrete 35.567 m3

12. Fig: piercap

13. Abutment Abutment consist of three parts Main wall Counter front wall Riding retaining wal l

14. Fig: abutment

15. PEDESTAL Used to transfer load from bearing to piercap Grade of concrete used M35 Fig: pedastel

16. Place for jack The location of jack and temporary bearing for lifting of the superstructure to replace bearing etc. this is shown by symbol The two layrs of mesh reinforcement one at 20 mm from top and the other at 100 mm from top of pedestal and piercap each consisting of 8 mm bars at 75 mm in both directions shall be provided directly under the bearing/jack and temporary bearing +

17. Fig:detail of piercap

18. Launching of girders Site Preparation Basic planning Placing of Girder on Excel Puller of Capacity 125 T Transport to The Location Lifting the girder by using the Crane Capacity of 250 T Fixing the POT/ PTEF Bearing in Girder Placing of Girder in proper Location with proper Safety & Suppor

19. Fig: PTEF/POT bearing FIXING THE POT/ PTEF BEARING IN GIRDER

20. fig: launched girder

21. Methodology of cast in situ slab Reinforcement & Concreting of End & Middle Diaphram Fixing of shuttering Placing reinforcement as per drawing & specification Pouring of concrete M40 as per approved mixed design

22. Reinforcement & Concreting of End & Middle Diaphram

23. Fixing of shuttering Fig: shuttering

24. Placing reinforcement as per drawing & specification Fig: placing of r/f for slab

25. Pouring of concrete M40 as per approved mixed design Fig: pouring of concrete by boom presure

26. Fig: boom pressure

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