TRAINING REPORT for UP nirman nigam

8/22/2019 TRAINING REPORT for UP nirman nigam

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ANCHIT AGRAWAL | B.Tech.-civil | August 4, 2013 |

1050800009

INDUSTRIAL TRAININGUP NIRMAN NIGAM LTD. UNIT-19


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CONTENTS

ACKNOWLEDGEMENT ........................................................................................................................ 2

INTRODUCTION ................................................................................................................................... 3

PROJECT SNAPSHOT ........................................................................................................................... 3

EQUIPMENTS USED ............................................................................................................................. 5

Transit mixer ....................................................................................................................................... 5

Back hoe .............................................................................................................................................. 6

Concrete Pump: .................................................................................................................................. 7

BATCHING PLANT ............................................................................................................................ 8

FLY ASH .............................................................................................................................................. 8

FLY ASH BRICK .................................................................................................................................. 9

BRICK WORK ..................................................................................................................................... 9

PROCEDURE ........................................................................................................................................ 10

Excavation: ......................................................................................................................................... 11

PCC ..................................................................................................................................................... 11

LAYING OF FOUNDATION ............................................................................................................ 11

Raft foundations ................................................................................................................................ 12

FORM WORK .................................................................................................................................... 13

SCAFFOLDING/PROPS USED .........................................................................................................14DESIGN DETAILS ................................................................................................................................. 15

CONCRETING ................................................................................................................................... 15

REINFORCEMENT ........................................................................................................................... 16

COLUMN ........................................................................................................................................... 17

RING TIES AND BARS ..................................................................................................................... 18

Spacing between the rings: ............................................................................................................18

Beams: ................................................................................................................................................ 19

Shear Reinforcement: .................................................................................................................... 19

COVER BLOCKS ............................................................................................................................... 20

SAFETY NETS ........................................................................................................................................ 21

CONCLUSION ...................................................................................................................................... 22


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ACKNO WLEDGEMENT

I would like to thank Mr. Atul Singh, under his guidance this traininghas proven such a success.

I would also like to thank my college ,faculty members and friends fortheir support and enthusiasm


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INTRODUCTION

Construction of extension of Allahabad high courts lucknow bench began in 2012

The estimated cost of construction is 697 lakhs

UP NIRMAN NIGAM LTD. Is the builder which has been awarded the contract The high court is spread in an area of 40 acres

PROJECT SNAPSHOT

The project is located near polytechnic crossing and is 25 kilometers (km) away fromAmausi Airport and 11 km from Hazratganj. The project has good road connectivity.

The project will provide ample parking space.

The project is an extension to the Allahabad high courts lucknow bench

The bench consists three highly qualified ex-officio jurists, the administrative capital ofthe state.

Completion date :2014

RCC framed structure

Floors:Marble flooring


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External doors and windows :window steel frame with wooden shutter doors

Creation of chambers for judges and chief judges

Creation of toilets on each floor at crossroads both ladies and gents

Creation of Z shaped stairs through the stairs and lobbies

Expansion & contraction joints are provided

Bitumen Treatment are provided on roof

Water proofing is done using Penybar (chemical)


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EQUIPMENTS USED

It is device that homogeneously combines cement, aggregate such as sand or gravel,

and water to form concrete.

Transit mixer is truck mounted by a revolving drum to mix the components. Forsmaller volume works portable concrete mixers are often used so that the concrete can

be made at the construction site.


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A backhoe, is a piece of excavating equipment or digger consisting of a digging bucketon the end of a two-part articulated arm.

They are typically mounted on the back of a tractor or front loader. The section of thearm closest to the vehicle is known as the boom, and the section which carries the

bucket is known as the dipper or dipper stick.


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The main type of concrete pump is either mounted on a truck and known as a truck-mounted concrete pump or placed on a trailer, and it is commonly referred to as a line

pump or trailer-mounted concrete pump.

This pump requires steel or rubber concrete placing hoses to be manually attached tothe outlet of the machine.


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EXCAVATION

PCC

LAYING OFFOUNDATION

FORM WORK

SCAFFOLDING

REINFORCEMENT CONCRETING


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Excavation was carried out both manually as well as mechanically. Adequate precautions are taken to see that the excavation operations do

not affect the adjoining structures.

After the process of excavation, laying of plain cement concrete that isPCC is done. A layer of 75 mm was made in such a manner that it was

not mixed with the soil.

It provides a solid base for the raft foundation and a mix of 1:3:6 that is, 1part of cement to 3 parts of fine aggregates and 6 parts of coarse

aggregates by volume were used in it.

At the site, Raft foundations was used to spread the load from astructure over a large area, normally the entire area of the structure.

Normally raft foundation is used when large load is to be distributed and it is

not possible to provide individual footings.


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have the advantage of reducing differential settlements as

the concrete slab resists differential movements between loading positions.

They are often needed on soft or loose soils with low bearing capacity. Raft Foundation had a thickness of 750 mm. Bars of 25 mm to 16 mm were used and chairs were used.


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Forms or moulds or shutters are the receptacles in which concrete isplaced, so that it will have the desired shape or outline when hardened.

Once the concrete develops adequate strength, the forms are removed.Forms are generally made of the materials like timber, plywood, steel,

etc.


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Scaffolding is a temporary structure used to support people and materialin the construction or repair of buildings and other large structures.

It is usually a modular system of metal pipes or tubes, although it can befrom other materials.

The key elements of a scaffold are standards, ledgers and transoms.


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DESIGN DETAILS

Type of Cement Used :P.P.C (A.C.C) Grade of concrete in slabs and beams :M-20 Grade of concrete in coloumns:M-30 Grade of concrete in P.C.C work:M-10 Grade of concrete in Raft foundation:M-25 Concrete was made at the site only at the batching plant. From there it was carried upto the site with the transit mixer. Capacity of a transit mixer :6m3 Aggregates sizes :20 mm ,10mm Fine aggregate (sand):zone 2


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Fe-500 grade of steel was used. High strength deformed bars conforming to IS: 1786 ,grade Fe 500,

indicate yield stresses 500 N/mm2 are commonly used.


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Total no. of columns in a floor was 69, in which 64 have dimension750*250 and remaining 5 columns having dimension 600*250.

There were 10 bars used in the columns in which the corner bars were ofdia. 25 mm, and the remaining were 20 mm dia. till 3 th floor.

4 th to 7 th floor bars of dia. 20 mm and 16 mm were providedrespectively in the corner and in the middle.

From 7 th onwards till the end the bars of dia. 16 mm and 12 mm wereprovided.


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8 mm dia. bars were used as ring. The larger ring was of dimension 650*150 mm which holds the corner

bars and the smaller ring was of dimension 350*150 which holds the

inner bars.

SPACING BETWEEN THE RINGS:

The spacing between the top and the next ring was 80 mm and also thesame spacing was provided for the bottommost and the ring above it.

Rest all the spacing between the rings was 120mm.


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Beams were of sizes 230*400,small beams of size 230*160 was alsoprovided.

Main Reinforcement: Mostly bars of dia 25,20 and 16 mm were provided.

SHEAR REINFORCEMENT:

Stirrup was of dia. 8mm.

Stirrups were provided for the shear reinforcement ,1 st stirrup is at 40

mm from face of the supporting member.

Spacing of the stirrup was upto 2*(dia of the main bar)


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Cover blocks are placed to prevent the steel rods from touching theshuttering plates and there by providing a minimum cover and fix the

reinforcements as per the design drawings.

Covers should be made of cement sand mortar (1:3). Ideally, covershould have strength similar to the surrounding concrete, with the least

perimeter so that chances of water to penetrate through periphery will

be minimized.


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SAFETY NETS


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CONCLUSION

This training is comprehensive in filling the gap between the theoretical& practical studies

At the site there was a good management system between the contractor,the consultant, and the client.

I found that there was good understanding between the supervisor andthe workers, though works are interdependent but there were no

contradiction between them.

TRAINING REPORT for UP nirman nigam

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