Introduction

Important changes have been made on regulations. Please read it carefully.

In the organization of inter-universities Boğaziçi University Design and Construct 2012 Steel Bridge Competition, students compete in teams with bridges they design and produce. The participant teams earn experience in fields of designing, production process, and team organization.
The topic of the competition is about the problems an engineer can face during a construction project. The competition is an application of this project, a steel bridge competition.
The stability, usefulness and security standards defined in the topic of the competition are selected from daily life bridge construction knowledge. There are 5 different categories in the evaluation of the competing bridges. The first is aesthetics and uniqueness, second is workmanship & time efficiency, third is deflection efficiency, fourth is dead- weight efficiency and the final is the compliance with organization /competition program. 
This document includes contents and the rules of the competition of 2012. All the information on the contest can be found in www.boundc.com.
The first priority in the organization is security. As BUYAP(Boğaziçi University Construction Club), all we demand from the participants is to maintain all security measures to prevent any accidents.
As a student organization, all projects and designs have to be processed by the students. However, the students may ask for the help of their instructors when it is needed.

The Topic of the Competition

There is an old bridge crossing a natural river, which is important for the people since it is the only alternative to cross to the other side in case of emergencies. This bridge is to be re-constructed in a short time due to its logistic importance. Ministry of Transportation demands the usage of steel as the main material because of its high strength and easy assemblage. They also require the bridge to have enough length not to prevent the flow of the river. Finally, they expect vertical deflection of bridge to be in between the given limits.
Because of the obstacles around the river, the legs of the bridge have to be built on soil.  Extra legs can be used during the construction to support the bridge. However, these extra supporting legs have to be removed at the end of the construction. The project finishes with the removal of the temporary platform.
Similar field conditions and load tests are going to be applied to each bridge. The bridges are going to be tested in 5 categories determined by the Ministry of Transportation.
 A contract will be signed with owners of the best project.

The Competition Schedule

Design & Construct 2012 consists of a 3-day program. In the first two days, the bridges will be built and evaluations are done, and the last day the award ceremony and conferences will be held. The program from Friday to Sunday including all activities and other details will be announced to the competitors. During the competition, it is not allowed to make any structural or architectural changes on the bridges. (Except the required fixing resulted from the accidents during construction for aesthetics evaluation)
At the first day of the competition,

• The bridges are built at the South Campus Square at Boğaziçi University. Construction time is limited to 2.5 hours.
• Before the competition, the weight and size controls for members are made and the total weight of the bridge is measured.
• The teams make their 5 minute-presentations.
• The jury, attending the first day of the competition, makes their aesthetic evaluations after the bridges are constructed.
• After the evaluations, the bridges are disassembled.

At the second day of the competition,

• The bridges are assembled at the South Campus Parking Lot of Boğaziçi University where the load tests are accomplished and each assembly time is measured.
• After all bridges are completed, the jury who has not made their aesthetic assessments do their evaluations.
• The load tests are performed.

At the third day of the competition,

• The Conferences and sponsorship presentations are held.
• The award ceremony is held.

* If necessary changes may be made by BÜYAP on the competition schedule.

Descriptions:

• Team: The competitor team consists of competitors who take place in the construction area at any moment of the set up time. In a team, there may be at least 4 at most 5 competitive members, who are registered to an undergraduate program of any civil engineering or architecture department of any university. At least one member of the competitor team should be an undergraduate civil engineering student.
• Barge: Barge is one single member who is chosen by the captain of the team before timing starts. This member works only as the barge in the river area (between river reference lines) from start to end.
• Assembled Part: Consists of at least 2, at most 3 load carrying members that are fastened together by bolts(screws and nuts).
• Load carrying member: Is a member of bridge, except legs having a weight of at most 7 kilograms, which can be perpendicularly placed in a 120cmx25cmx25cm box. Legs of the bridge should be perpendicularly placed in a 120cm x 35cm x 35cm box before timing every member shall be checked and controlled. In case of a member weighing more than 7 kilograms, competitor team will be applied penalty #4. Load carrying member may consist of one single rigid piece, or multiple pieces, which have been welded or at the time of production. Additionally, load-carrying piece should conserve its shape and dimensions during construction and after the bridge is assembled. Material properties of the steel should comply with ST 37 grade structural steel.

• Binding member:Is a steel bolt that possesses at least one nut. They are independent pieces.  Binding member cannot be anchored/fastened/fixed or welded to a member of the bridge before construction. Mounting can only take place in construction. Use of washers is permitted.
• Temporary Support Member: Is employed during construction for supporting purpose, placed on ground temporarily. Usage and number depends on preference. The first temporary support member does not take part in cost calculations. (Two legs, not connected to each other, standing perpendicular to the longitudinal line of the bridge, is counted as one single temporary support member.) The others that are used additionally (may be placed wherever preferred) affect ratings through construction/manufacturing cost. Temporary support members’ dimensions cannot excess 20cmx20cm. The material of these members’ cross-sectional should be appropriate for ST37 standards. The members that do not fulfill these conditions will not be allowed for usage. Temporary support members cannot be fixed to the ground or supported by other members in any way.

 

Rating

Competitor bridges are evaluated in categories of Aesthetics & Uniqueness, Workmen & Time Efficiency, Deflection Efficiency, Dead Weight Efficiency and Compliance with Organization / Competition Program.
Affects of the categories to the general performance rating are as below:
-Aesthetics & Uniqueness                                                                 20%
-Workmen & Time Efficiency                                                             25%
-Deflection Efficiency                                                                       25%
-Dead Weight Efficiency                                                                   25%
-Compatibility to Organization / Competition Program                     5%

V. I. Aesthetics & Uniqueness
Each member of the jury chooses 10 bridges out of 15 and gives them points from 1 to 10, and scores will be sealed.
The jury does not have to explain the basis of his/her point in the aesthetics & uniqueness branch.
Example evaluation for the application of the category for three teams;

Category Ranking	Total score	Over 100points rating	Aesthetics and Originality Category of receivables from Score
1.	93	100	100*0.2= 20
2.	83	(83/93)*100=89.2	89.2*0.2=17.8
3.	65	(65/93)*100=69.9	69.9*0.2=13.9

 

In the Aesthetics & Uniqueness branch, four criteria are taken into consideration; originality, balance, proportion and elegance. Furthermore, the quality of production and fabrication is judged.
The bridges have to be designed by competitor students. If the members of the jury have doubts on originality, they will consider their doubt while giving points.
Full name of the college or university must appear on the bridge or on a banner or a placard attached to the bridge, in letters having the height at least 5 cm. It should be placed on the bridge during aesthetics judging andat other times when the bridge is on display.
If the bridge does not fulfill this condition, jury will reduce 5 points of total 100 points of this category.
Each team have to have a poster or a plate having a size at most 100cm x 100cm   near the bridge which includesthe university name of the team, explanations about the design process, a scaled-dimensioned side view of the bridge, a brief explanation of why such an overall configuration of the bridge was selected and information of technical additional.
If this stated poster or plate is missing, 10 of total 100 points of this category will be reduced. If the poster does not contain any part of the stated conditions, 2 points will be reduced for each missing part.

V.II. Workmen & Time Efficiency

Time passed during setup (setup time, ST) plus all time penalties described in other sections is defined as total time.
Setup time will be evaluated linearly the maximum time being 120 min.With the penalties and the number of team members, the team who has the shortest time will get the 25 points (max point). The teams after them will get linearly calculated points. In total time (setup+penalties) the teams who exceed 120 min will be applied penalty# 9.
+ 1 TL (for every support members after the first one)
Worker-Time (WORK) is calculated by the formula below:
((WORKmax-WORKa)/(WORKmax-WORKmin))*100
Sample calculations for 3 teams are as shown below:

 

 

V.III. Deflection Efficiency
Displacement efficiency is obtained by the multiplication and the addition of the vertical and horizontal displacements in determined percentages.
The cost of the displacement efficiency (DV) is calculated the following way:
            DV=Vertical displacement value*(80%) +Horizontal Displacement Value*(20%)
The teams with vertical displacement that does not exceed 0.5 cm will get whole point from vertical displacement category.
The teams with vertical displacement that exceeds 2.5 cm will be applied penalty#9.
The teams with horizontal displacement that does not exceed 0.2 cm will get whole point from horizontal displacement category.
The teams with horizontal displacement that exceeds 1.5 cm will be applied penalty#9.

An example of the calculation for three different teams is shown below:

 

Team	Vertical Displacement Calculation	Evaluation out of 100	Points from this Category
A	(Dvmax-Dva)/Dvmax-Dvmin)	[(2.5-0.62)/(2.5-0.5)]*80	75.2*0.25=18.8
B	(Dvmax-Dvb)/Dvmax-Dvmin)	[(2.5-1.92)/(2.5-0.5)]*80	23.2*0.25=5.8
C	(Dvmax-Dvc)/Dvmax-Dvmin)	[(2.5-0.72)/(2.5-0.5)]*80	71.2*0.25=17.8

Dvmax = 2.5,Dvmin = 0.5,Dva = Team Value

Team	Horizontal Displacement Calculation	Evaluation out of 100	Points from this Category
A	(Dhmax-Dha)/Dhmax-Dhmin)	[(1.5-0.42)/(1.5-0.2)]*20	16.6*0.25=4.15
B	(Dhmax-Dhb)/Dhmax-Dhmin)	[(1.5-0.75)/(1.5-0.2)]*20	11.5*0.25=2.875
C	(Dhmax-Dhc)/Dhmax-Dhmin)	[(1.5-1.24)/(1.5-0.2)]*20	4*0.25=1

Dhmax = 1.5 , Dhmin = 0.2 , Dha = Team Value

 

V.IV. Dead Weight Efficiency
Total weight is the sum of the selt weight of the bridge and added weight penalties, which are clarified in other sections. Apron, tools and temporary supports are not included in total weight. The weight of the bridges is limited to 300 kg. If the weight of the bridge exceeds 300 kg, the competitor team will be applied penalty#9.

The cost that emerged from weight efficiency (WE) is calculated as below:

WE= Total weight (kg) * 30.000 (TL/(kg*cm))

TEAM	TOTAL WEIGHT (kg)
a	148.4
b	160.8
c	201.6

TEAM	WE Calculation³	Evaluation out of 100	Points from this Category
A	148.4*0.3= 44.52=WEa	[(WEmax-WEa)/(WEmax-WEmin)]*100=100	100*0.25= 20
B	160.6*0.3= 48.18=WEb	[(WEmax-WEa)/(WEmax-WEmin)]*100=91.95	9195*0.25= 23.10
C	201.6*0.3= 60.48=WEc	[(WEmax-AVa)/(WEmax-WEmin)]*100=64.91	64.91*0.25= 18.40

³  WEa, WEb and WEc defines the WE values of a,b and c teams. WEmin defines the minimum of WE values of competitors. 

ORGANIZATION AND COMPETITION PROGRAM COMPLIANCE

This is the category that includes pre-organization program compliance, attending to presentations and meetings during the contest, returning progress reports in on time, obeying the rules indicated in this document. This category, which has a % 5 part in the total points of groups’, will be rated by the jury. Details of this category will be explained in the meeting team leaders will attend.

OVERALL SUCCESS

The overall performance rating of a bridge is the sum of Aesthetics & Uniqueness (A), Workmen & Time Efficiency (Work), Deflection Efficiency (DE), Dead Weight Efficiency (WE), and Compatibility to Organization / Competition Program (OPC). The bridge collecting the highest total point will win the contest Boğaziçi University Design and Construct 2012.

EQUIPMENT PROVIDED BY BOGAZICI UNIVERSITY

-Lateral Load Device which can apply a 25kg of load in the horizontal direction
-Equipment for measuring horizontal displacement 
-Equipment for measuring deflection
-Approximately 25kg heavy, aprons(loading trays) having a 50cm x 80cm x 5cm size(50 cm wide in the longitudinal direction of the bridge, 50 cm wide in the transverse direction.
-Ground: Load tests are done on the second day of the competition in Boğaziçi University South Campus Parking Lot (The surfaces which bridges will stand on should be as flat and levelled as possible, in both the construction site and loading area.)
Participants should keep small equipments and tools they would use in assembling the parts with themselves.

Violating the rules below causes not to be evaluated in categories of Workmen & Time Efficiency, Deflection Efficiency, Dead Weight Efficiency:

1. Bridge should only include load carrying and binding members.
2. Bridge should not touch the ground except at its four legs.
3. Bridge should not be fixed to the ground. (Exception: If any of the bridges’ feet does not touch the ground, to negate the disadvantages while loading thin plates could be placed under the feet to gain contact with the ground.)
4. Bridge legs should be established, as they will not touch the 6.3-meter river and standing parallel to the reference line. Maximum length of the bridge is up to competitor teams. The legs should not be on the river and river must not touch the river borderline.

Violating the rules below causes any bridge not to be evaluated in categories of Deflection Efficiency, Dead Weight Efficiency:

1. Vehicle way on the bridge should be parallel to the ground.
2. To be able to make load tests, there should be enough space on the sides of the bridge.
3.  A 5 cm deep and 80 cm wide and 50 cm long apron(steel tray to carry loading plates) must be able to be placed on the bridge. To be able to carry the apron provided by Boğaziçi University is the priority of load tests for bridges.
4. Pre-stressed or post-tensioned load-carrying members are not allowed.
5. Standards of constructional steel are determined as ST37.  The company who provides the steel should send details to BUYAP. Competitor team should also send a document which includes the details of the material used obtained from the company they provided their materials, to BUYAP.
6. Horizontal displacement should not exceed 1.5 cm, vertical displacementshould not exceed 2.5 cm.
7. After measuring starts, the competitor teams are not allowed to touch the test devices.
8. After assembly, bridges should not suffer any break-apart or collapse.
9. Load-Carrying members should preserve their shapes, size and rigidity during configuration stage and load tests.
10. For the load tests, bridge should confirm the other conditions of Deflection Efficiency, Dead Weight Efficiency.

Construction Rules

1. Competitor teams should bring their own tools, white hard hats, gloves and goggles to the construction area. Team members should use these while setting up their bridges. If they don’t bring any of these because of the safety reasons, the team will not be allowed to start.
2. Any part of the bridges, any tools, nuts, bolts, hard hats, gloves and eyeglasses are should not touch to the river or the construction area. In case of a violation,penalty #5 will be applied. (Temporary support member is also a part of construction area.)
3. None of the competitor teams should step out of the construction area. In case of a violation,penalty #6 will be applied. (Exception: A competitor team may step in the river to take dropped a tool, hard hat, nut or bolt)
4.  Temporary support members should not collapse while supporting the bridge. In case of a violation,penalty #1 will be applied.
5. Each competitor team except for the barge may cross the river and come back for only one single time. (Competitor teams are not allowed to cross the river by jumping, using bridge body or any other technique.)
6. A competitor team, while supporting a part of the bridge, cannot support any other part of the bridge or help any teammate to do so. In case of a violation,penalty #1 will be applied.
7. No more than 3 parts can be assembled in the assembling area. Competitor teams can only insert nuts or tighten bolts to these assembled parts out of the assembling area.
8. Assembled parts can only be attached to the constructed part of the bridge.
9. Constructed parts of the bridge should not be moved, manhandled or transported in any way. (Exception: Any movement in any direction to link the parts of bridge or moving the supporting parts can be accepted under the condition of being moved for 8 cm at most.)
10. At least two competitors should carry the assembled parts. One single person can carry the parts, which were not assembled at the construction area.
11. Bolts should have diameters of 20 mm and lengths of 240 mm and hexagonal heads. Other kinds of bolts are not allowed.
12. Nuts and bolts should be inserted with their original form without any mechanical differences. Otherwise, competitor teams will not be allowed to use them.
13. Every load-carrying member should be assembled to one another through at least one binding member.
14. The bridge should stand parallel to the reference lines of the construction area. Construction areas will be given to the teams by lottery. Teams should accept the slab conditions of the provided construction area.
15. In case of any accidents occur, the judge stops the clock and checks the issue. Unless the situation is unsuitable to continue, the judge keeps the right of that team to continue.
16. The barge cannot step out of the river reference lines (In case of a violation,penalty #6 will be applied).   The barge can cross to the other side without using the bridge only for one single time. The barge is not allowed to jump over or pass under the bridge in order to cross to the other side.
17. Before the assembly period begins, every part of the bridge and every tool that is going to be used should be arranged in the assembling area without contacting each other. Parts of the bridge and tools will be checked 5 minutes before the timing begins.
18. Competitor teams should avoid insecure actions. In case of a violation,penalty #2 will be applied.

DIMENSIONAL RULES

1. The limits for the plate of vehicles are 1m - 1.4m from the ground. In case of a violation, penalty#7 is applied.
2. The highest point of the bridge should be 2.1 m from the ground. In case of violation, penalty #7 is applied.
3. Support legsshould have the size of 20cm x 20cm at most. Supports will be checked before the contest begins. In case of a violation, support legs cannot be used.
4. A box having the size of 2m x 2m x 0.75 m (height: 0.75 m) should be able to pass under the bridge.  This gap may be left anywhere under the bridge, including temporary platform. In case of a violation,penalty #8 will be applied.
5. Every load carrying member except legs of the bridge should fit into a box having the size of 120cm x 25cm x 25cm. In case of a violation, penalty #3 is applied.( The length of the members cannot exceed 120 cm. For curving members, the length of the curved sides is taken into account.)
6. Legs of the bridge should fit into a box having the size of 120cm x 35cm x 35cm. In case of a violation, penalty #3 is applied. (The length of the members cannot exceed 120 cm. For curving members, the curved length of the member is taken into account.)
7. The place of barge in the river, the temporary platform on the river and other parts are displayed with drawings on our website.
8. A vehicle, which is 80cm wide and 50cm high, should be able to cross the bridge. (A 80cmx50cmx50cm box will be used for control). In case of a violation,penalty #7 will be applied.

DEFLECTION RULES

• Under horizontal loading, displacement should not exceed 1.5 cm, vertical displacement should not exceed 2.5 cm.

PENALTIES

Penalty 1: Referee stops the time. The state before the violation is set, and the time is restarted. 10 minutes penalty is applied.
Penalty 2: Referee stops the time. The state before the violation is set, and the time is restarted
Penalty 3: If the length exceeded is X, the weight that will be added as penalty C3 (kg) is calculated as given below:

                       10* X  kg.              X < 5 cm.
              C3=      20* X  kg.      5 cm. < X < 10 cm.
                       40* X  kg.     10 cm. < X

Penalty 4: If the weight exceeded is X, the time that will be added as penalty C3 (kg) is calculated as  given below:

                       1 min.                   X < 0.5 kg.
              C4=      5 min.         0.5 kg. < X < 1 kg.
                      15 min./ kg.    1   kg. < X < 5 kg.
                      30 min./ kg.    5   kg. < X

Penalty 5 : Penalty time of 1min. is applied.
Penalty 6:  Penalty time of 3min. is applied.
Penalty 7 : If the length exceeded is X(cm), the weight that will be added as penalty.
C7 (kg) is calculated as given below:
    C 7 = 15X^1,4 kg

Penalty 8 : If the length exceeded is X(cm), the weight that will be added as penalty.
C8 (kg) is calculated as given below:
    C 8 = 6X^1,4 kg

Penalty 9: In the case of exceeding the stated limits there will be no evaluation in the category and the team will get zero point from this category.

RESTRICTIONS:

Forbidden materials and devices stated below causes not to be allowed to use them.

1. Throwing load-carrying members or devices are forbidden. In case of a violation,Penalty #1 is applied.
2. Devices like welding machine, engine etc.,any type of electronically systems and energy transmitting,converting devices  (Cables, batteries,engines,pistons, tribune springsetc,), which require an external power input are forbidden.
3.  Energy transmission to the bridge or from the bridge (magnetic / mechanical forces / sound / light / radio waves / heat / electric current / etc.) is forbidden.
4. Any load carrying members of the bridge which contains moving pieces,hinges,joints, latches, locking devices, springs or hooks are forbidden.
5. Threaded or prefabricated truss connections are not permitted.
6. Prestressed or post-tensioned load-carrying members are not allowed. Flexible tension members such as cables and chains, and post-tensioning members are not allowed.
7. Flexible tension members such as cables and chains, and post-tensioning members are not allowed.
8. Greasing is not allowed during the setup or in the setup area, at any time.
9. Crossing the river for the second time is forbidden. In case of a violation,Penalty #1 is applied.
10. Any risky behavior, which can cause an accident, is not allowed. In case of a violation,Penalty #2 is applied.

CONSTRUCTION SITE

Site and bridge plans are displayed in our website. Only the referees and team members are allowed in the construction site.

• Construction site plans

TIME

Time is defined as the interval between the beginning and the end of the construction. The time of setting up the temporary support leg is included.

• 2 members of each team are allowed to survey their bridges after the stop of setup time and before the load tests, at most for 3 minutes. During this survey, any revision in the bridge and any contact with the bridge are allowed. If any fault is inspected, time for repair may be granted. Time consumed here is added to the total time after being multiplied by 2.Repair time is limited to 5 minutes. During the repair, only the barge is allowed to take place in the construction site. During the repair, all competition rules are applied.

XVI.I. START
Before the construction starts, only these materials may exist in the construction area.

• Load- Carrying members (TE)
• Binding members (BE)
• Tools
• Temporary support members (if it will be used )

Every load carrying member has to contact the ground. Carrying members should not be attached or in contact with each other. Tools and binding members have to be separate from load carrying members. During the construction, it is not allowed to bring any other load carrying members, binding members or tools to the construction area or to take them away. It is the team’s own responsibility to check these before the construction.  Team members should wearhard hat, glove, goggles and their T-shirts (T-shirts are distributed by BUYAP) during the construction.
Time begins with the signal of the referee after all teams are ready.

XVI.II. FINISH
When all conditions stated below are satisfied, the constructions and the time is stopped.

• All members of the bridges should to be connected.
• Tools and temporary support members have to be carried back to the construction site.
• Team captain should give a signal when they are finished.

LOAD TESTS

XVII.I. Horizontal load test
25 Kg of load is applied to the mid-span of the bridge at the deck level and the horizontal deflection measured. For the vertical load test to be applied, horizontal deflection should not exceed 1.5cm.
A 35 Kg of vertical load is placed on the bridge (at the mid-span) during the horizontal loading test.

XVII.II Vertical Loading Test
Vertical loading test contains two different vertical loading applications.
In the first vertical loading application, 1000 kg weight(steel plates) is loaded onto two piece of loading aprons (weighing approximately 25 kg each and totally having a length of 1.0 m) will be safely placed on the bridge, symmetrically, in such a way that weight is distributed symmetrically with respect to the mid-span. The teams are responsible of designing a bridge that lets the loading to be symmetrical. If not, the loading will be done the way which the referees decide. No objections will be taken into account. For a more reliable measurement, after 50 kg weight is loaded, measuring device is reset,then loading continues. Measuring devices are placed on the mid-span of the bridge and 15 seconds after the loading is finished, the value is read under the supervision of the referee committee. As soon as the loading is finished, the competitors have to move off from the bridge. Otherwise, until the surrounding area of the bridge is emptied, waiting for the measurement is mandatory.
The second vertical loading application is done immediately after first loading application with an extra loading apron of  250 kg weight is applied on the middle point between the midspan of the bridge and one end. The end is decided by a draw of a dice which is drawn by the team captain under the supervision of the referee committee. If it is an even number, the weight will be applied on the right side of the referee committee’s standing position. If it is an odd number, the weight will be applied on the left side of the referee committee’s standing position.

• Loading of both of the weights is done by the four members of the group and can be done at the same time or one by one. This is the choice of the group.  The competitors who are loading the weight have to wear white helmets, gloves, protective goggles, and steel nosed boots.
• Total vertical shift is the absolute value of the vertical displacement of the measurement devices measures.
• Temporary support members are removed before the measurement is done.

Objections

• Referees will not take an objection from a team about another team’s bridge into consideration.
• Objections can only be delivered by the team captain to the referees. Otherwise objections will not be taken into consideration.
• Objections must be offered right after the non-compliance is made.
• Any changes on the bridges cannot be made in the process of evaluation.
• Participants must be treated with respect and ethics during appeals and competition. Referees may find it necessary to remind to the participants.
• After the referee explains his / her decision, the team captain may ask for 5 minutes in order to discuss the decisions with colleagues. After 5 minutes, if the team is not satisfied with the decisions, competitors may request referees to observe and analyze again.

EVALUATION

Referees appointed by Boğaziçi University Construction Club reserve all rights to pause every act found to be dangerous, resume the competition, or proceeding according to the rules. All decisions, evaluations, and prohibitions are in their commitment. Boğaziçi University guarantees to fully inform all referees about rules and methods and declares to provide all knowledge for their mission.

MATERIAL SUPPORTERS OF COMPETITOR TEAMS

Teams;

• Shall make their own material supporter arrangements and agreements. The teams are asked to deliver a document from their supporter company to BUYAP in order to make sure that only “steel according to ST37 standards” will be used.
• Shall provide BUYAP all contact information and who from which company they are keeping in touch with.
• Are allowed to use the names and logos of the supporter company, having the size of at most 20cm x 20 cm, on posters and plates which will be presenting their bridge during aesthetics evaluation.
• Are allowed to add the name of the supporter company to the name of their bridge.
• Are allowed to mention the company name during aesthetics evaluation presentation.

OTHER

• All questions regarding to rules and competition are to be consulted, asked and replied on www.boundc.com and buyap.deco2012@gmail.com
• Following the end of competition, all teams will be delivered their certificates.
• The teams are not allowed to make changes on their bridges in practicing. They will compete with the very same bridge they presented before. Any changes will be considered by judges in the aesthetics evaluation category which affects 25% of overall, and will cause loss of points according to the initiative of judges.
• In the case of excess number of applications, a method of elimination over the projects will be followed. For this elimination, a board of civil engineers will be in charge. This board does not evaluate the bridge designs.