high flood level bridge ,training ppt, dilip buildicon ltd.,nh113 , mahi bridge
TRANSCRIPT
![Page 1: HIGH FLOOD LEVEL BRIDGE ,TRAINING PPT, dilip buildicon ltd.,NH113 , MAHI BRIDGE](https://reader036.vdocuments.net/reader036/viewer/2022062522/5879dc0d1a28ab842c8b773f/html5/thumbnails/1.jpg)
APresentation
onPractical Training
taken at
DURATION: 23/05/2016 to 23/07/2016
SUBMITTED BY : 1. TEJPRAKASH KUMAWAT
Final Year B.Tech (Civil)
SUBMITTED TO :DEPARTMENT OF CIVIL ENGG.
DEPARTMENT OF CIVIL ENGINEERINGGOVT ENGINEERING COLLEGE
BANSWARA
HIGH FLOOD LEVEL BRIDGE ACROSS
MAHI RIVER
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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
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CONTENT1. EXCAVATION WORK FOR RAFT2. RAFT OF ABUTMENT AND PIER3. PIER4. PIER CAP5. ABUTMENT6. PEDESTAL7. PLACE FOR JACK8. GIRDER LAUNCHING9. SLAB
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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.
• RAFT ARE USUALLY AT SOME DEPTH IN THE GROUND ,A LARGE VOLUME OF EXCAVATION MAY BE REQUIRED.
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Fig: excavation work for foundation
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RAFT OF ABUTMENT AND PIER• LEVEL THE GROUND
• PCC OF M15 GRADE CONCRETE
• PLACE THE REINFORCEMENT AS PER DRAWING
• COVER =75MM.
• HEIGHT = 1.1 M
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Fig: Reinforcement details of raft
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Fig: Reinforcement cage
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PIER• MULTI-SPAN BRIDGES REQUIRE PIERS TO SUPPORT THE ENDS OF SPANS BETWEEN
ABUTMENTS• TRANSFER LOAD OF SLAB,GIRDER,PIERCAP TO RAFT
Fig: pier
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Fig: details: of pier
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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
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Fig: piercap
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ABUTMENT
ABUTMENT CONSIST OF THREE PARTS
MAIN WALL
COUNTER FRONT WALL
RIDING RETAINING WALL
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Fig: abutment
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PEDESTAL
• USED TO TRANSFER LOAD FROM BEARING TO PIERCAP• GRADE OF CONCRETE USED M35
Fig: pedastel
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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
+
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Fig:detail of piercap
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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
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FIXING THE POT/ PTEF BEARING IN GIRDER
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METHODOLOGY OF CAST IN SITU SLAB1. Reinforcement & Concreting of End & Middle
Diaphram2. Fixing of shuttering3. Placing reinforcement as per drawing &
specification4. Pouring of concrete M40 as per approved mixed
design
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Reinforcement & Concreting of End & Middle Diaphram
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FIXING OF SHUTTERING
Fig: shuttering
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PLACING REINFORCEMENT AS PER DRAWING & SPECIFICATION
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POURING OF CONCRETE M40 AS PER APPROVED MIXED DESIGN
Fig: pouring of concrete by boom presure
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Fig: boom pressure
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THANK YOU