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بیست و دومین همایش سالیانه انجمن بین المللی بتن (ACI) – شاخه ایران و

اولین دوره مسابقه ملی پل ساخته شده با چاپگر سه بعدی

آیین نامه مسابقات بین المللی دانشجویی بتن شاخه های منطقه­ ای (ACI)
مسابقه پل ساخته شده با چاپگر سه بعدی
 3D Printed Bridge Competition 
  4 و 5 دی ماه  1398
با همکاری وزارت علوم، تحقیقات و فناوری
علاقمندان می توانند جهت ثبت نام و کسب اطلاعات بیشتر به پایگاه اینترنتی مراجعه کرده و یا با شماره تلفن88664151 تماس حاصل فرمایند.
دانشجویان علاوه بر سایت انجمن می توانند تمامی آیین نامه های مسابقات دانشجویی و فرم ثبت نام  را از کانال تلگرام انجمن دانلود نمایند.

ACI Iran Chapter 3D Printed Bridge Competition


  1. General description
  1. The contest is organized by ACI Iran Chapter and The Concrete Research & Education Center of Iran.
  2. The aim of the competition is to raise awareness of the issues related to bridge construction among young people, the integration of the academic environment and promotion of modern technology used to create contest’s models with the use of 3D-printers.
  3. The contest can be participated by undergraduate & masters students.
  4. The competition is organized annually.
برای دریافت نسخه PDF آیین نامه مسابقات مسابقه پل ساخته شده با چاپگر سه بعدی اینجا کلیک کنید
مشاهده ادامه آیین نامه

2. Prizes

First, Second, and Third place entries will each be awarded a certificate of recognition, will be recognized in ACI Iran Chapter’s newsletter if space allows, and will be recognized on ACI’s Iran Chapter website at .

  1. Organization of the contest


  1. The rules of eligibility have been translated to Persian and attached to this document. See attachment A.
  2. Each competition has separate and different requirements and rules of eligibility, so participants in the student competitions should read each document carefully.
  3. Teams should complete and send the Registration Form before 6 December 2019 at 4:00 p.m., to be eligible to participate.
  4. Each team must sign and submit a Declaration of Trust. See attachment B.
  5. Conditions to participate in the competition are:
    • Registration Form completed and sent before 6 December 2019 at 4:00 p.m. .
    • Acceptance of the Contest Rules and Health and Safety Regulations obtaining during making models (Attachment C),
    • Submission of the Declaration of trust (Attachment B),
    • Consent to processing of personal data for the needs of the contest and sharing these details with Partners.
    • Consent to leave contest’s model to the Organizer after finishing the Competition.
    • Sending the project of contest’s model to the e-mail address  before 12 December 2019 at 4:00 p.m. .
  • To confirm registration, participants must fill in the attached Registration form, send a ready to print design of the bridge via e-mail to the Organizer at . The deadline for sending is 12 December 2019 at 4:00p.m. .
  1. Competition entry is a model of a bridge structure printed by the participating teams using 3D printing technology. A ready to print design is made and sent to the Organizer by the participants before the deadline.
  2. A fair course of competition will be ensured by the ACI Iran Chapter competition committee. The committee will be announced at the day of the competitions. All decisions of the contest committee will be taken by a majority of votes.
  3. Tasks of the committee are:
    • Supervising accordance of the course of competition with the rules of the contest.
    • Settling disputes during the competition.
    • Qualification of projects for the 2nd stage.
  1. The ACI Iran Chapter has a right to exclude participants who are acting against the rules.
  2. Time and place of the contest
  1. The contest is divided into 2 stages:
    • I – Preliminary stage: sending registrations and projects designs via Internet.
    • II – Main stage: making models from the printed elements, endurance test – construction loading, announcing winners.
  2. I stage starts from the date of publication of the contest rules. From that moment Participants can register and send their team’s projects to the address of the Organizer.
  1. Deadline for registration is 6 December 2019 at 4:00p.m. . It is required to send the full project designs by 12 December, 2019.
  1. In case of cancellation of the team’s participation in the contest after paying fee payment is not refunded.
  2. Application:
  • Registration form
  • Statement of self-reliance in designing a model (Attachment B)
  • Working and Health and Safety Regulations obtaining during making models (Attachment C),
  • Contest`s project – file *.stl format and *.dwg format. The name of the file should contain the name of a Participant’s University and the name of a team, for example: Azad_University_i.stl – where ‘i’ is no. of drawing.
  1. By taking part in our competition, Participants agree to publishing their personal data on the competition’s website: .
  1. II stage of the competition will take place on 25th and 26th of December 2019, at the Convention Center.
  2. Making models from printed elements will take place at the day of the competitions on 25th and 26th of December 2019. In a 2 hours time, teams will be obliged to create a model from their previously printed elements. The 3D Printed bridge and bridge parts should be printed before the competition and must be submitted at 8:00 a.m. on 25th of December 2019, at the Registration Desk in the Convention Center.
  1. The necessary glue will be provided by the organizer if needed. Participants are not allowed to use their own glue. After this period, models are going to be secured by the Committee. Models will be available to the Participants on the following day, before the endurance test – construction loading.
  2. Loading the models will take place on the 26th of December 2019 in the convention center. The endurance testing machine will be operated by an appropriate laboratory worker. On the same day the Committee will choose the winners of the competition.
  1. Contest’s models
  2. Participants are obligated to send the following attachments to the Organizer`s e-mail address at :
  • Declaration of trust (Attachment B)
  • Working and Health and Safety Regulations (Attachment C),
  • Drawing of the designed construction in a spatial arrangement, in *.dwg format
  • Drawings of segments, which the construction is divided into (every segment in separate file, also in *.dwg format)
  • Copy of every drawing in *.stl format.
  • Visualization of the model in *.jpg format in definition of 300 dpi and dimensions in cm.
  • Each team is allowed to send only one project.
  • Contest`s project – file *.stl format and *.dwg format. The name of the file should contain the name of a Participant’s University and the name of a team, for example: Azad_University_i.stl – where ‘i’ is no. of drawing.
  1. Requirements to designed constructions:
  • Participants are obliged to print or build models by themselves, from previously printed elements.
  • To connect the 3d printed elements together, the Participants will use a quick-drying glue, which will be provided by the Organizer if needed.
  • The Organizer will supply every team with one glue.
  • After connecting all elements with the glue, maximum weight of a model cannot exceed 400 g.

Dimensions of the using matrix printer should be: 20 cm (length) x 20 cm (width) x 15 cm (height). Printed segments of a model cannot exceed these dimensions (Picture no.1).

Picture 1. Space of printing in 3D

  • Span length measured in the axes of the supports has to be 50 cm.
  • The model has to have a possibility to be put on supports (Picture no.2).
  • Maximum height of a model is 150 mm. The height will be measured after setting a model on supports, from the lowest to the highest point of a construction (Picture no.2 and no.3).
  • The object ought to be designed as a simply-supported structure (thrust constructions will be disqualified) with any type of main girder (arch, truss, beam, plate).
  • The structure has to be designed as a single-span bridge.
  • Minimum dimension of a printed element, in every direction has to elevate in 4 mm.
  • Dimensions of elements have to be designed to a 1 mm degree of precision.

·          There is no possibility of printing elements with box type cross sections. All of the printed elements have to be designed with a full type cross section (Picture no.4).

Picture 2. The loading scheme of an exemplar model with marked required extremes.

Picture 3. The loading scheme of an exemplary model.

Picture 4. A correctly (on the left hand side) and an incorrectly (on the right hand side) designed cross section.

  • Coating elements (shields, plates etc.) can only be printed “on the flat” (directly on the matrix printer). Rules of setting printed elements are illustrated on picture no.5 and no.6.
  • Single elements of an arch and a truss girder should be printed „on the flat”.
  • The designed model has to be similar to a realistic construction of a bridge and must be usable. That means it has to be possible for a vehicle to drive on it. The vehicle’s dimensions are: 60 mm (width) x 80 mm (height).


Picture 5. Acceptable setting of printed elements on a printer’s matrix.

Picture 6. Coating elements and surfaces cannot be printed in an illustrated way.

  • Created construction has to have a possibility to be loaded in the middle of a span by endurance testing machine (force is applied from above by square actuator 50x50mm). There have to be space of 60×60 mm to enter the actuator.
  • The degree of printing on 3D printer could be 30% or 50% and it is the value constant for an element.
  • An example of 3D printer method of printing is shown in the picture no. 7.

Picture 7. Steps of printing an element on the 3D printer.

  1. The data of the material, which will be used to print models:
    • The material used to print all of the models is optional.
  2. All of the models in the competition should be printed by the participants themselves before the competition day. Deciding on which brand & model of 3D printer to use for printing the bridge is entirely up to the teams.
  1. The endurance test – construction loading
  1. Before loading a construction, the model will be weighed. The permissible surplus weight is 5% over the maximum weight (400g).
  2. The endurance tests are going to be conducted during the construction loading, which will measure a nodal displacement in the middle of a span.
  3. Models are going to be loaded by endurance testing machine at the day of the ACI Iran Chapter student competitions.
  4. The process of construction loading:

1) Inserting the construction onto the endurance testing machine’s supports.

2)  Loading the construction in the middle of a span’s length. The load is put gradually, until the maximum deflection reaches 20 mm.

3)  The end of construction loading, announcement of results.

  1. The main criterion in the “Deflection” category is going to be the relationship between the size of a force, which causes a span deflection of 20 mm or a damage of construction and a total weight of a tested model. The victory is given to a team which will reach the
  1. Rules of awarding
  1. Main category – „deflection” – Best three bridge constructions will be announced winners.
  2. Announcement of results and awarding winners will take place on 26th of December 2019 after loading models.
  3. More information about this competition is available at:
  1. Final provisions
  1. ACI Iran Chapter reserves the right to keep all of the 3D printed models and use them for advertising purposes (exhibition).
  2. ACI Iran Chapter also reserves the right to modify the contest rules. In that case ACI will inform about changing rules by post on contest site
  3. Should any circumstances that were not considered in the contest rules arise, it is required for the contestant to obey the law.

Attachment no. A

Attachment A:

Eligibility Rules 

  • قوانین مسابقه:

 تیم های شرکت کننده در مسابقه :  

  • اعضاي تيم ها، دانش آموزان دبيرستانها، هنرجويان هنرستانهاي فني و حرفه اي، دانشجويان دانشگاه های سراسری، آزاد و موسسات آمورش عالی(مقطع کارشناسی و کارشناسی ارشد مهندسی عمران ، مکانیک، معدن، معماری، مهندسی شیمی و … در تمامی گرایش ها)، مراکز آموزش عالي، مراكز تحقيقاتي پژوهشي دولتي و غير دولتي می باشند. لازم به ذکر است تعداد تیم های شرکت کننده از هر دانشگاه، موسسه آموزش عالی، دبیرستان، هنرستان و …  نامحدود و در هر گرایش می توانند حداکثر دو تیم داشته باشند که باید اعضای تیم ها متفاوت باشند.


تیم A از دانشگاه A جهت مسابقه Epd و Cube (استاد راهنما:A و اعضای گروه: 1و 2 و 3 و 4 و 5 و 6 و 7 و 8)

تیم B از دانشگاه A جهت مسابقه Epd و Cube (استاد راهنما:A و اعضای گروه:  9 و 10 و  11 و 12 و 13 و 14 و 15 و 16)

تیم C از دانشگاه A جهت مسابقه Bowling و پل کاغذی (استاد راهنما:B و اعضای گروه: 17 و 18 و 19و 20 و 21 و 22 و 23 و 24)

توجه :  تیم C از دانشگاه A اجازه شرکت در مسابقات Cube و Epd را نخواهد داشت.

 شرایط مذکور (بند 1-1) برای تمامی مسابقات غیر از مسابقه طرح پژوهشی، مسابقه کانو بتنی و مسابقه هنر بتنی صادق می باشد.

  • چنانچه تعداد تیم های شرکت کننده در هر گرایش به حداقل 4 تیم برسد مسابقه برگزار می شود در غیر اینصورت مسابقه آن گرایش برگزار نخواهد شد و نمونه تحویل گرفته شده به تیم های ثبت نام کننده عودت داده نمی شود.
  • هرتیم شامل حداقل 2 نفر و حداکثر 8 نفر عضو به همراه 1 نفر استاد راهنما از همان موسسه آموزش عالی، دبیرستان، هنرستان و … می باشد.
  • هر شخص تنها مي تواند در يك تیم عضويت داشته و تیم شرکت کننده می باید معرفی نامه مهمور به مهر از موسسه آموزش عالی، دبیرستان، هنرستان و … معرفی شده را ارائه دهد.
  • هر موسسه آموزش عالی، دبیرستان، هنرستان و… برنده حداکثر یک رتبه ( مقام ) خواهد بود.
  • استاد راهنما فقط مسئوليت هدايت اعضاي تيم و رعايت قوانين مسابقه از طرف تيم را بر عهده دارد .
  • هر استاد راهنما نمي تواند سرپرستي بیش از دو تیم از یک دبیرستان، هنرستان، موسسه آموزش عالی و … بر عهده بگيرد.
  • آخرین مهلت ثبت نام برای شرکت در مسابقه ساخت پل با پرینتر سه بعدی ساعت 16:00 روز جمعه تاریخ 15 آذر ماه سال 1398 می باشد.
  • آخرین مهلت ارسال گزارش الکترونیکی (بصورت فایل PDF) ساعت 16:00 روز پنجشنبه تاریخ 21 آذر ماه سال 1398 می باشد.
  • شرکت کنندگان می بایست نمونه پل ساخته شده را در روز اول همایش ساعت 8:00 صبح به محل دریافت نمونه های دانشجویی ارایه نمایند.
  • فرم های ثبت نام از طریق ایمیل یا فکس می بایست ارسال گردد، شرکت کنندگان فرم ثبت نام را می بایست از وب سایت دانلود و تکمیل نموده، به همراه مدارک خواسته شده (معرفی نامه برروی سربرگ دانشگاه، کارت دانشجویی معتبر، کارت ملی، فیش واریزی ثبت نام و فرم کامل شده B و C ) به دبیر خانه همایش از طریق ایمیل به آدرس و یا از طریق فکس به شماره 88797454 تا تاریخ 15
    آذر ماه
    1398 ارسال نمایند.
  • نمونه های تحویل داده شده به کمیته مسابقات برای شرکت درمسابقات توسط تیم های شرکت کننده عودت داده نمی شود.
  • شرکت کنندگان مسابقه پل ساخته شده با چاپگر سه بعدی می بایست فایل های کامل آماده به چاپ پل را در فرمت های stl، dwg یا هر فرمت استفاده شده برای طراحی و چاپ (بخش 4 آیین نامه) را تا تاریخ
    21 آذر سال 1398 به ایمیل  جهت داوری طرح ارسال نمایند.
  • هزینه واریزی جهت ثبت نام به هیچ عنوان عودت داده نمی شود.
  • استاد راهنما باید از اعضای هیات علمی و یا مدرسین دانشگاه تیم دانشجویی مربوطه باشد .
  • حضور استاد راهنما در روز مسابقه و زمان برگزاری مسابقه تیم خود الزامی است و عدم حضور باعث حذف تیم دانشجویی می شود.
  • همراه داشتن اصل معرفی نامه از دانشگاه و کارت دانشجویی در روز همایش الزامی است.

**  قابل توجه کلیه دانشجویان و شرکت کنندگان در بیست و دومین همایش ملی سالیانه بتن و زلزله:

همایش ملی سالیانه بتن و زلزله و آیین نامه مسابقات دانشجویی مرکز تحقیقات بتن (متب) طبق مصوبه وزارت علوم، تحقیقات و فناوری متعلق و خاص این مرکز بوده و استفاده از آنها خارج از مسابقات فوق پیگرد قانونی خواهد داشت.

Attachment no. B


ACI Iran Chapter 3D Printed Bridge Competition

Declaration of trust

Being aware of criminal responsibility for false representation, we hereby certify that we are the only persons responsible for the design of our 3D Printed bridge construction. Further- more, we declare that our project:

  • Does not infringe any copyrights.
  • Has not been a part of another contest project.

………….      ………….     ………….     ………….   ………….   ………….     ………….     ………….

Place, date, signature of all team members

Attachment no. C


ACI Iran Chapter 3D Printed Bridge Competition

Working and Health and Safety Regulations

During work it is required to maintain cleanliness and order. All tools and objects used during work must be located in designated places. Participants are responsible for all damages caused by themselves and are obliged to cover them from their own funds or when there is a possibility to repair them.

While using dangerous tools, glues and acetone-based solvents, particular caution should be exercised. All work related to cutting elements should be done on the table directly on the board designated for this purpose. It is unacceptable to cut elements directly on the table.

Available resources can cause allergies and irritation. It is important not to allow any chemicals get inside eyes, nose, mouth etc.. Each participant is obliged to inform immediately competition committee about observed irregularities.  

ACI Iran Chapter is not responsible for participant’s property which can be lost, damaged or stolen during the competition.

Competition Participant is obliged to comply with instructions given by the student competition committee. At the same time they are submitted to all Health and Safety Regulations, Fire Regulations and Rules obtaining at the Convention.


  1. Do not try to tear off the glue from skin or release glued fingers by force. You can tear skin!
  2. Put some nail polish remover with acetone on glued area of skin. Acetone dissolves glue – even

Super Glue, but you should take into consideration that it also irritates skin (skin is blushing).

  1. If your fingers are glued together or you have much glue on your skin it is best to wet the entire

Surface in a bowl with remover with acetone / pure acetone.

  1. After dissolving of glue wash the rest with soap and warm water.


  • Acetone as well as nail polish remover may discolor clothing and wooden surfaces.
  • If glue gets in the eye it is required to call an ambulance immediately.
  • If glue gets into the mouth it is not allowed to close them. It is necessary to call an ambulance immediately.
  • Acetone dissolves different types of glue – Super Glue, nail tips glue etc.
  • Washing glue (Super Glue) from skin using nail polish remover with acetone may take some time, so you have to be patient.

I hereby state that I have read the Working and Health and Safety Regulations and I pledge to comply with its rules, I under- stand the risk connected with work during the competition and I have appropriate qualifications to use tools such as a hammer, sandpaper and glue, and I am aware of all the risks associated with their use. At the same time, I agree to the dissemination of my personal data (name, last name and the name of the team) and my image on the photographs from the contest in media, press and on websites promoting competition.

………….      ………….     ………….     ………….   ………….   ………….     ………….     ………….

Place, date, signature of all team members.

Registration Form