To design and fabricate a kattwyk bridge.Thus our project would help lot of people who are facing problems presently while ship to move under the bridge. Now our project would make the movement of ship under the bridge even in a small river.

1. THE KATTWYK BRIDGE
A Project Based Laboratory Report
submitted in partial fulfillment of the award of degree
BACHELOR OF TECHNOLOGY
(COMPUTER SCIENCE ENGINEERING )
submitted to
KL UNIVERSITY
by
Name of Student : University Roll No.
K.SHASHANK REDDY (150030407)
P.PAVAN KUMAR REDDY (150030733)
P.CHANDU SAI (150033113)
R.SANJEEV SUMAN (150030777)
Y.V.R.KISHORE (150031044)
Under the guidance of
P.SRINIVAS RAO
(ASST. PROFESSOR -MECHANICS)
KL UNIVERSITY
Green Fields, VADDESWARAM, Guntur District, A.P., INDIA.
2015 – 16

2. KL UNIVERSITY
Green fields, VADDESWARAM
CERTIFICATE
This is to certify that the project based laboratory report entitled “KATTWYK BRIDGE”
submitted by K.SHASHANK REDDY (150030407) in partial fulfilment of project based lab in
Engineering Mechanics for I/IV Bachelor of Technology in Computer science engineering at
“Basic Engineering Science” is a bonafide record of the work carried out under my(our)
guidance and supervision at KL University during the academic year 2015-16.
Signature of Project guide(s)
Date: Name & Designation
P.SRINIVAS RAO
(ASST.PROFESSOR)-MECH
Head
Basic Engineering Sciences Department
Internal Examiner External Examiner

3. ACKNOWLEDGEMENTS
It is great pleasure for me to express my gratitude to our honorable President Sri. Koneru
Satyanarayana, for giving the opportunity and platform with facilities in accomplishing the
project based laboratory report.
I express the sincere gratitude to our principal Dr. A. Anand Kumar for his
administration towards our academic growth.
I express sincere gratitude to our Coordinator Mr S N Padhi for his leadership and
constant motivation provided in successful completion of our academic semester.
I record it as my privilege to deeply thank our pioneer Dr. D. Haritha, HOD-BES for
providing us the efficient faculty and facilities to make our ideas into reality.
I express my sincere thanks to our project supervisor P.SRINIVAS RAO for his novel
association of ideas, encouragement, appreciation and intellectual zeal which motivated us to
venture this project successfully.
Finally, it is pleased to acknowledge the indebtedness to all those who devoted
themselves directly or indirectly to make this project report success.
Name:
Regd. No:

4. TABLE OF CONTENTS
INTRODUCTION :
1.1 Bridge
1.2 Movable bridges
1.3 Kattwyk bridge.
LITERATURE SURVEY:
1.1 History of bridges
SYSTEM DEVELOPMENT:
1.1 Construction
1.2 Advantages and Disadvantages
PERFORMANCE ANALYSIS:
1.1 Apparatus required.
1.2 Working
1.3 Basic model of project.
1.4 Principle involved
1.5 Safety features
1.6 C programming
1.7 Auto cad
CONCLUSIONS:
1.1 Conclusion
1.2 Future scope
1.3 Real time Applications

5. INTRODUTION OF OUR PROJECT
AIM: To design and fabricate a kattwyk bridge.
BRIDGE: A bridge is a structure built to span physical obstacles without closing the way
underneath such as a body of water, valley, or road, for the purpose of providing passage over
the obstacle. There are many different designs that each serve a particular purpose and apply to
different situations.
MOVABLE BRIDGES:
A moveable bridge, or movable bridge is a bridge that moves to allow passage (usually) for boats
or barges. There are three basic types of movable bridges; the bascule, the vertical lift and the
swing bridge.
KATTWYK BRIDGE:
The motivation behind the project is the KATTWYK BRIDGE, HAMSBERG, GERMANY. The
bridge was built in 1972. The bridge has a unique feature that it based on the “Vertical Lift
Mechanism”. Its middle (movable) part lifts to give way to the ship passing by thus maintaining
waterways transport. Till now no bridge such has been built in India.
This is the original model which is in Hamsberg Germany.

6. LITERATURE SURVEY
History of bridges
Bridge is not a construction but it is a concept, the concept of crossing over large spans of land or
huge masses of water, and to connect two far-off points, eventually reducing the distance
between them. The bridge provides passage over the obstacle of small caverns, a valley, road,
body of water, or other physical obstacle. Designs of bridges vary depending on the nature of the
terrain and the function of the bridge and where it is constructed.
The first bridges were believed to be made by nature — as simple as a log fallen across a stream.
The first bridges made by humans were probably spans of wooden logs or planks and eventually
stones, using a simple support and crossbeam arrangement.
The first bridges were natural of huge rock arch that spans. The first man-made bridges were tree
trunks laid across streams in girder fashion, flat stones, and festoons of vegetation, twisted or
braided and hung in suspension. These three types – beam, arch, and suspension – have been
known and built since ancient times and are the origins from which engineers and builders
derived various combinations such as the truss, cantilever, cable-stayed, tied-arch, and moveable
spans.

7. SYSTEM DEVELOPMENT
APPARATUS REQUIRED
1. STAINLESS STEEL
2. STRINGS
3. PULLEYS
4. PLASTIC CAPS
CONSTRUCTION
.
The Bridge mechanism has been divided in three sections. The central section lifts above, while
the two side parts remain intact with the supporting angles. The lift mechanism used for the
bridge is based on the pulley system involving two pulleys. A string is passed through the two
pulleys on either side of middle section and the pulley at the centre synchronizes the motion of
two pulleys and makes the motion centralized.
The angles are used to restrict the motion of central section allowing only the motion in vertical
direction to occur and provide the stability to the bridge structure. .
The mechanism used to lift the central section is due to the constraint of not using any electric
motor or gears. In real case situation, the power can be given by electric motors and cables can
be used. The four bridge supporting angles that connect the three sections of the
bridge will actually go till the bottom surface of the river.
ADVANTAGES OF VERTICAL LIFT BRIDGE
1. They cost less to build for longer movable spams
2 .They can be constructed at any suitable or un suitable areas at any attitudes.
3. It can be best suited for heavy rail road use.
DISADVANTAGES OF VERTICAL LIFT BRIDGE
1. The biggest disadvantage of a kattwyk bridge is height restriction of cargos passing under it.
2. The failure of construction, strings, dc motor results in the deck remaining suspended above
the passage way.

8. PERFORMANCE ANALYSIS
WORKING:
The main goal of our project is to design the KATTWYK bridge, which involves the following
working and principle used for the construction of our bridge.
As it is constructed across the river while ships are coming near to the bridge then the middle
part will go up it is lifted through the string attached to the pulleys on one end and to the rod on
another side. If ship is passed away then the middle part will come down.
PHYSICAL MODEL:
PRINCIPLE INVOLVED
The lift mechanism used for the bridge is based on the pulley system involving two pulleys.. The
mechanism used to lift the central section is due to the constraint of notusing any electric motor
or gears. In real case situation, the power can be given by electric motors and cables can be used.
The four bridge supporting angles that connect the three sections of the bridge will actually go
till the bottom surface of the river.
SAFETY FEATURE OF MODEL
Rubber Bumpers are placed below Lift structure to absorb any shocks during lowering of Bridge.
Safety latch used to lock the bridge in Position When Bridge is in lifted position, Counter weight
plate will act as barricade on Fixed part of bridge toprevent any Road traffic.

9. C PROGRAM
#include<stdio.h>
#include<conio.h>
void main()
{
int k,op;
clrscr();
printf("n*********** The working of kattwyk bridge ************");
while(k)
{
printf("n enter the selected option");
printf("n1.stop the vehiclesn2.close the gatesn3.initiation of lift n4.lift movement
upwardsn5.lift movement downn6.give green signaln7.gates down,n8.SOFTWARE design
batch details");
scanf("%d",&op);
switch(op)
{
case 1:if(op==1)
printf("n ****IT'S ALREADY RED YOU HAVE TO STOP****");
case 2:if(op==2)
printf("n ****GATES ARE CLOSED,WAIT TILL THE GATES ARE OPEN****");
case 3:if(op==3)
printf("n ****INITIATION OF LIFT****");
case 4:if(op==4)
printf("n ****(BOAT JUST ARRIVED, LIFT IS MOVING UPWARD****");
case 5:if(op==5)
printf("n ****HAPPY THAT SHIP HAS JUST CROSSED THE BRIDGE SHAFT IS
COMING DOWN****");
case 6:if(op==6)
printf("n ****IT'S TIME TO GREEN!,YOU CAN PROCEED****");
case 7:if(op==7)
printf("n ****THE GATES ARE OPEN, ENJOY THE TRIP****");
case 8:if(op==8)
{
printf("n UNDER THE GUIDENCE OF: P.SRINIVAS RAO sir");
printf("n Section : 17");
printf("n Batch : 5");
printf("n Batch members:n 1.K.Shashank reddyt(150030407)n 2.P.Pavan kumar
reddyt(150030733)n 3.P.Chandu saitt(150031130)n 4.R.Sanjeev sumant(150030777)n
5.Y.V.R.Kishoret(150031044)");
}
}
printf("n for next,press 1 to select,0 to stop");
scanf("%d",&k);
}
printf("n A KATTWYK BRIDGE DESIGN BY KLU STUDENTS");
printf("n *****************THANK YOU******************** ");
getch();
}

10. Output:

14. AUTOCAD

15. CONCLUSION
Conclusion
Thus our project would help lot of people who are facing problems presently while ship to move
under the bridge. Now our project would make the movement of ship under the bridge even in a
small river.
FUTURE SCOPE
As in our project it is stated that there should be man who will take care on the movement of
middle shaft. But in future we would work on building this same project by taking the help of the
uv or object detecting sensors which requires no manual operation.
REAL TIME APPLICATIONS
KATTWYK BRIDGE, HAMSBERG,GERMANY. The bridge was built in 1972.