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Structural Analysis of deflection for members under bending moment in that casted in structure workshop circumstances in Syrian Arab Republic

التحليل الإنشائي لحد التشكل للعناصر المعرضة للانعطاف في مرحلة الاستثمار و المصبوبة بظروف الورشة في الجمهورية العربية السورية

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 Publication date 2014
  fields Civil Engineering
and research's language is العربية
 Created by Shamra Editor




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The equipment of reinforced concrete by using native materials (cement-aggregates-steel) in ideal conditions help us producing concrete that consummate the Syrian Arab Code conditions, but these are not found in Engineering Structure workshop that have affection of characters used materials in one hand, and these behavior in the common work with steel –Structural behavior of Engineering member espial in serviceability stage, that may be expose accepted limits in other hand . So it is necessary to correct the Syrian Arab Code's formulas of deformation and finding suitable mathematical factors and formulas that insure structural safety for reinforced concrete members under bending moment that casted in structure workshop circumstances in Syrian Arab Republic.


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Research summary
تتناول هذه الدراسة التحليل الإنشائي للعناصر الخرسانية المسلحة المعرضة للانعطاف والمصبوبة في ظروف الورشة في الجمهورية العربية السورية. يهدف البحث إلى دراسة تأثير العيوب الحاصلة في العناصر الهندسية المصبوبة في ظروف الورشة على حدود الاستثمار (حد التشكل) وتصحيح علاقات الكود العربي السوري بما يحقق تلك العناصر. تم صب عينات بيتونية مسلحة نموذجية وأخرى ضمن ظروف الورشة، ورصد كافة العيوب الحاصلة في العينات نتيجة الظروف المتواجدة في الورشة. تم تحليل النتائج ومقارنتها مع القيم النظرية للسهوم وفق علاقات الكود العربي السوري. أظهرت النتائج أن علاقات الكود العربي السوري تعطي سهوم نظرية أقل بكثير من السهوم التجريبية، مما يدل على التأثير الكبير للعيوب الحاصلة في الجوائز المصبوبة في الورشة. بناءً على ذلك، تم اقتراح معاملات رياضية تصحيحية لضمان دقة الحسابات الإنشائية للعناصر المصبوبة في ظروف الورشة.
Critical review
تعتبر الدراسة مفيدة جداً في تسليط الضوء على الفجوات بين القيم النظرية والتجريبية للسهوم في العناصر الخرسانية المسلحة المصبوبة في ظروف الورشة. ومع ذلك، يمكن الإشارة إلى بعض النقاط التي قد تحتاج إلى تحسين. أولاً، كان من الممكن تقديم تفاصيل أكثر حول كيفية اختيار العينات وضمان تمثيلها للظروف الواقعية في الورش المختلفة. ثانياً، الدراسة تعتمد بشكل كبير على العلاقات الرياضية، وكان من الممكن تعزيزها بمزيد من التجارب العملية المتنوعة لتأكيد النتائج. ثالثاً، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل البيئية المختلفة التي قد تؤثر على جودة الخرسانة المصبوبة في الورشة. وأخيراً، كان من الممكن تقديم توصيات أكثر تفصيلاً حول كيفية تحسين ظروف الورشة لتقليل العيوب في العناصر الخرسانية.
Questions related to the research
  1. ما هو الهدف الرئيسي من البحث؟

    الهدف الرئيسي من البحث هو دراسة تأثير العيوب الحاصلة في العناصر الهندسية المصبوبة في ظروف الورشة على حدود الاستثمار (حد التشكل) وتصحيح علاقات الكود العربي السوري بما يحقق تلك العناصر.

  2. ما هي الطريقة التي استخدمت في البحث لرصد العيوب في العينات؟

    تم صب عينات بيتونية مسلحة نموذجية وأخرى ضمن ظروف الورشة، ورصد كافة العيوب الحاصلة في العينات نتيجة الظروف المتواجدة في الورشة، وتحديد مدى تأثيرها على قيم السهوم التجريبية من خلال معالجة النتائج وتحليلها.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    النتائج الرئيسية أظهرت أن علاقات الكود العربي السوري تعطي سهوم نظرية أقل بكثير من السهوم التجريبية، مما يدل على التأثير الكبير للعيوب الحاصلة في الجوائز المصبوبة في الورشة.

  4. ما هي التوصيات التي قدمتها الدراسة لتحسين دقة الحسابات الإنشائية للعناصر المصبوبة في ظروف الورشة؟

    قدمت الدراسة توصيات بإدخال معاملات رياضية تصحيحية لضمان دقة الحسابات الإنشائية للعناصر المصبوبة في ظروف الورشة، مثل عامل مرونة البيتون الفعلية وعزم عطالة المقطع المتشقق الفعلي.


References used
K.WIGHT,J,2005-Building Code Requirements for structural concrete commentary.American concrete institute,318M USA,436P
STANDARD BOARD,1997-Britch standard concrete part2 methods for specifying concrete mixes. Sideline ,issue 2 margin,28p
ZAIN ALANI,A,1987- Iraqi Building code Requirements for reinforced concrete .scientific research council,issue1Baghdad,68p
CVEN 444, January 25, 2002- Concrete Mixing and Proportioning. New York,55p
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