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Monthly Archives: May 2023

Erbil Polytechnic University  > Blog  > 2023  > May
Author Jihan Jihan Categories Master Thesis

Bending and Shear Behavior of Two-Layers Casting Reinforced Concrete Beams

  • Halmat Brhan Najm
  • [email protected]
  • 0750 710 6464
  • pdf zanko

  • Abstract

    High-strength concrete is used to reduce the size of the beams in addition to enhancing the strength,
    this leads to overestimated cost in comparison with normal-strength concrete while using normal-strength concrete leads to the overestimated amount of concrete (layer size) of the beam section. For
    balancing the condition between the cost and size of beams, the benefit of both materials is used, by
    using beams in two layers, high-strength concrete in the compression zone (top layer), which is more
    beneficial for beam strength, and normal strength concrete in tension zone (bottom layer), which is no
    need using high strength concrete the in-tension zone. This study investigates the flexural and shear
    behavior of reinforced concrete beams consisting of two layers with different concrete strengths
    (grades), for beams with and without shear reinforcement (stirrups), considering the effect of shear-span ratio, layer thickness, layer compressive strength, and the overlap time casting of the two layers.
    The experimental program consists of a total of nineteen reinforced concrete beams of dimension (125
    mm x 250 mm) with a total length of 1200 mm, the beams are reinforced with longitudinal
    reinforcement (4Ø12mm) and using (Ø8mm) bar as transverse reinforcement (stirrups). The
    experimental results show that the crack pattern of the two-layer reinforced concrete is closer to the
    crack of the control beam with one layer. Increasing the compressive strength of the concrete of the
    top layer, the ultimate failure load increased by (8.35%, 15.6%, and 18.85%), with respect to the
    (control beam) with the full depth of normal concrete. By increasing the high-strength layer thickness,
    the value of shear strength (Vc) and ultimate shear strength (Vu) increased linearly. The casting overlap
    time of up to (60 min) can be used for casting two-layered reinforced concrete beams, which is
    recommended, beyond this time the strength of the shear strength (Vc) and, ultimate shear strength
    (Vu) decreases. With increasing the shear span ratio (a/d) from (1 to 1.5 and 2) the ultimate load
    failure decreased by (33% and 50%). The shear strength capacity decreases with increasing stirrup
    spacing.
    Key Words: Two-layer RC beams, HSC beams, NSC beams, Shear strength, Ultimate shear
    strength.

  • Erbil Technical Engineering College
  • Civil Engineering
  • structure
Author Jihan Jihan Categories Master Thesis

أثر تبني معيار الابلاغ المالي الدولي عقود الإيجار “IFRS16” على تحسين جودة المعلومات المحاسبية ( دراسة اَستطلاعية لآراء عينة من الأكاديميين والمهنيين في مدينة أربيل )

  • Iman Othman Ahemed
  • [email protected]
  • 0750 411 9498
  • eman

  • هدفت الدراسة لبيان وجود أثر تبني معيار الابلاغ المالي الدولي عقود الإيجار  "IFRS16 " على تحسين جودة المعلومات المحاسبية  من خلال دراسة اّستطلاعية لآراء عينة من الاكاديميين والمهنيين في مدينة أربيل )، ولتحقيق أهداف الدراسة واختبار فرضياتها تم إعداد استمارة الاستبانة المتكونة من ثلاثة محاور وتم توزيعهم على الاكاديميين والمهنيين في مدينة أربيل وبلغ  عدد الاستمارة الموزعة (96) استمارة ومن ثم تم تحليل النتائج باستخدام برنامج الحزمة الإحصائية للعلوم الإجتماعية (SPSS) وتم استخدام تحليل الارتباط وانحدار واختبار (t- test) لاختبار فرضيات الدراسة.

    وتأسيساً على ما سبق فقد توصلت الدراسة إلى مجموعة من الاستنتاجات ومن أبرزها أثر تبني معيار الابلاغ المالي الدولي عقود الإيجار(IFRS16) على تحسين جودة المعلومات المحاسبية، و تؤكد نتائج التحليل أن هناك أثراً لتبني المعيار الإبلاغ المالي الدولي عقود الإيجار(IFRS16) وفق إجابات افراد العينة، وكما أشارت نتائج التحليل باستخدام معامل الارتباط ومعادلة الانحدار إلى وجود ارتباط خطي ايجابي معنوي مقداره (87.7%) بين معيار الابلاغ المالي الدولي عقود الإيجار(IFRS16) على تحسين جودة المعلومات المحاسبية في الدراسة الحالية التي هي ذات علاقـة وأثر معنوي عالٍ بين متغيرات الدراسة  من حيث المعلومات المحاسبية التي يمكن تبنيها وتطويرها بهدف جودة المعلومات المحاسبية.ومن أهم توصيات الدراسة تبني المعيار الابلاغ المالي الدولي عقود الإيجار (IFRS16) بما فيها من فوائد وأهمية كبرى من زيادة تحسين جودة المعلومات المحاسبية، ضرورة زيادة أهتمام نقابة المحاسبين بفتح دورات تدربية لمراقب الحسابات في مجال المعايير المحاسبية الدولية ومعايير الابلإغ المالي الدولي وبالاخص، معيار الابلإغ المالي الدولي عقود الإيجار (IFRS 16) وكذلك لزيادة وعي المحاسبين في الوحدات الاقتصادية للتعامل بالتأجير التمويلى.

    الكلمات الافتتاحية: معيار الأبلاغ المالي الدولي عقود الإيجار (IFRS16) ، جودة المعلومات المحاسبية.

  • Erbil Technical Administrative College
  • accounting technical
  • accounting
Author Aftaw Abdulla Categories presidency

Erbil Polytechnic University Announces summer internship opportunities for third year students in Arab countries

After participating in the 28th Arab Universities Conference for Summer Training in Morocco, the third year students of the Erbil Polytechnic University have the opportunity to apply for the summer internships in Arab countries (Egypt and Oman). which lasts for 21 days.

Any student who wishes to participate can register through the following link according to the following conditions:

1- to be a third-grade student.

2- To be fluent in the Arabic language.

3. the Airline tickets are the responsibility of the student (food, accommodation and transportation, within the host country, is the responsibility of the university).

4- The deadline for applications will be 31/5/2023

Note: Only 7 students can participate in this training (5 students in Egypt, 2 students in Oman).

To register, click here.

Author Aftaw Abdulla Categories presidency

Erbil Polytechnic University and Baghdad University Sing a Memorandum of Understanding

The Rector of the Erbil Polytechnic University Prof. Dr. Edrees Muhamad Tahir Harki, and the Rector of the Baghdad University Prof. Dr. Munir Hamid Al-Saadi, signed a memorandum of understanding between the two universities.

On Thursday, the 25th of May, 2023, Prof. Dr. Edrees Muhamad Tahir Harki visited the Baghdad University and was warmly welcomed by Prof. Dr. Munir Hamid Al-Saadi.

In a meeting where Asst. Prof. Dr. Nageb Toma Bato, the Vice Rector of the Erbil Polytechnic University for Scientific Affairs and Higher Education was present both universities discussed the need of collaboration between the two universities, especially in the academic and scientific fields.

During the meeting, the President of Baghdad University briefed the guest delegation on the history of Baghdad University, and that the first batch of its graduates were in 1911, and also talked about the history of the establishment of colleges affiliated to the university.

Whilst, Prof. Dr. Edrees Muhamad Tahir Harki, the Rector of the Erbil Polytechnic University thanked the Rector of the Baghdad University for welcoming them, and briefed the Rector of the history of the Erbil Polytechnic University and its colleges and institutes.

During the meeting, some of the work and activities of the Baghdad University were shown to the participants.

Then, a memorandum of understanding between the two universities was signed by Prof. Dr. Edrees Muhamad Tahir Harki and Prof. Dr. Munir Hamid Al-Saadi, the President of Baghdad University.

According to the memorandum, which will be valid for five years, while developing academic and scientific coordination between the two universities, both sides will also work to exchange teachers, researchers and administrative staff with each other to benefit from each other’s experience.

Both universities also exchange students for summer training program, while working to conduct joint research, workshops and information exchange, curricula, scientific research for publication, and both universities will also collaborate with each other to organize academic and scientific activities.

After exchanging gifts and logos of both universities, the Rector of the Erbil Polytechnic University and the Rector of the Baghdad University visited the Baghdad University and the historical site of Baghdad and the Baghdad University on the Tigris River was shown to the Rector of Erbil Polytechnic University and his delegation.

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