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Effect of confined on load carrying capacity of concrete columns

تأثير التطويق على قدرة تحمل الأعمدة البيتونية

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 Publication date 2018
  fields Civil Engineering
and research's language is العربية
 Created by Shamra Editor




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The study will examine the effect of changing the diameter of the longitudinal and lateral reinforcement on the carrying capacity of the concrete columns and compare the value of the compressive strength of concrete, which is associated with the theoretical relations provided by (Mander), (Park et all) by building an analytical model using finite element Program ANSYS.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير التطويق على قدرة تحمل الأعمدة البيتونية، حيث أثبتت الدراسات التجريبية أن التطويق يزيد من مطاوعتها وقدرة تحملها. يتم في هذا البحث دراسة تأثير تغيير قطر التسليح الطولي والعرضي على قدرة تحمل الأعمدة البيتونية باستخدام نموذج تحليلي يعتمد على برنامج ANSYS. يتم مقارنة النتائج التحليلية مع العلاقات النظرية المقدمة من قبل Mander و Park. تم بناء النموذج التحليلي باستخدام برنامج العناصر المحدودة ANSYS، وتم تحليل تأثير التطويق على الأعمدة من خلال دراسة تأثير تغيير قطر التسليح الطولي والعرضي. أظهرت النتائج أن برنامج ANSYS يعطي نتائج قريبة من العلاقات النظرية، حيث بلغ الفرق حدود 4% فقط. كما أظهرت النتائج فعالية زيادة قطر التسليح الطولي والعرضي في زيادة قدرة تحمل الأعمدة.
Critical review
دراسة نقدية: على الرغم من أن البحث يقدم نتائج دقيقة باستخدام برنامج ANSYS، إلا أنه كان من الممكن تحسين الدراسة من خلال تضمين تجارب عملية لدعم النتائج التحليلية. كما أن الاعتماد الكامل على النماذج النظرية قد لا يعكس بدقة التحديات الواقعية التي قد تواجهها الأعمدة البيتونية في الظروف الحقيقية. بالإضافة إلى ذلك، كان من الممكن توسيع نطاق الدراسة لتشمل تأثيرات أخرى مثل تأثير درجات الحرارة والرطوبة على قدرة تحمل الأعمدة.
Questions related to the research
  1. ما هو الهدف الرئيسي من البحث؟

    الهدف الرئيسي من البحث هو دراسة تأثير التطويق على قدرة تحمل الأعمدة البيتونية من خلال تغيير قطر التسليح الطولي والعرضي باستخدام نموذج تحليلي يعتمد على برنامج ANSYS.

  2. ما هي النتائج الرئيسية التي توصل إليها البحث؟

    النتائج الرئيسية التي توصل إليها البحث هي أن برنامج ANSYS يعطي نتائج قريبة من العلاقات النظرية المقدمة من قبل Mander و Park، وأن زيادة قطر التسليح الطولي والعرضي تزيد من قدرة تحمل الأعمدة.

  3. ما هي التوصيات التي قدمها الباحث في نهاية الدراسة؟

    التوصيات التي قدمها الباحث تشمل تطوير الدراسات التحليلية نظراً لدقتها بالمقارنة مع النتائج التجريبية، واستخدام نماذج أخرى لمنحنيات إجهاد - تشوه للبيتون المطوق وإجراء المقارنة فيما بينها.

  4. ما هي العوامل المؤثرة على فعالية التطويق؟

    العوامل المؤثرة على فعالية التطويق تشمل نسبة التسليح العرضي، مقاومة البيتون على الضغط، تباعد الأساور، نموذج الأساور، والتسليح الطولي.


References used
A. e. F. Ahmeh Mohsen, "BEHAVIOR OF CONCRETE COLUMNS UNDER VARIOUS CONFINEMENT EFFECTS," Kansas State University, p. 427, 2012
P. P. Daniel Cusson, "HIGH-STRENGTH CONCRETE COLUMNS CONFINED BY RECTANGULAR TIES," Journal of Structure Engineering ASCE, vol. 12, no. 3, pp. 783-804, 1994
B. D. Sema Noyan Alacali, "The Effect of Confinement and strain hardening on the performance and design of short circular columns," Faculty of Civil Engineering , Main Campus, Turkey
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