Experimental studies on the fire endurance of reinforced concrete beams
Joint Authors
Kazim, Muhammad Mansur
Ulwan, Nada Mahdi Fawzi
al-Khalidi, Khalid Safa Hashim
Source
Journal of Babylon University : Journal of Applied and Pure Sciences
Issue
Vol. 18, Issue 4 (31 Dec. 2010)14 p.
Publisher
Publication Date
2010-12-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract AR
في هذا البحث تم دراسة تأثير لهب النار المباشر على بعض الخواص الميكانيكية و سلوكية العلاقة بين الحمل و الانحراف.
تم تعريض النماذج الخرسانية للنار بدرجات حرارة تراوحت بين (25-800) درجة مئوية و بأعمار مختلفة تراوحت (30, 60, 90) يوما مع ثلاث مستويات للحرارة (400, 600, 800) درجة مئوية و لمدة ساعتين.
لوحظ من النتائج أن مقاومة الانضغاط المتبقية كانت قد تراوحت بين (67-76 %) في درجة 400 درجة مئوية و (58-66 %) في درجة حرارة 600 درجة مئوية و (28-51 %) في درجة 800 درجة مئوية, أما بالنسبة للعلاقة بين الحمل المسلط و الانحراف في العتبات الخرسانية المسلحة فإن الحمل الأقصى أقل من قيمتها قبل التعرض إلى لهب النار.
Abstract EN
In this study, some mechanical properties and deflection behavior of rectangular reinforced concrete beams under the effect of fire flame exposure is presented.
The properties investigated were compressive strength and load-deflection behavior of rectangular reinforced concrete beams under the effect of fire flame exposure.
The concrete specimens and beams were subjected to fire flame temperatures ranging from (25-800) °C at different ages of 30, 60 and 90 days, three temperature levels of 400, 600 and 800 °C where chosen for exposure duration of 2.0 hours.
The test results showed that the residual compressive strength ranged between (67-76 %) at 400 °C, (58-66 %) at 600 °C and (28-51 %) at 800 °C.
It was noticed that the load-deflection relation to specimens exposed to fire flame are flat , representing softer load deflection behavior than that of the control beams.
Also, it was found that the shrinkage values increase with temperature increase.
American Psychological Association (APA)
Kazim, Muhammad Mansur& Ulwan, Nada Mahdi Fawzi& al-Khalidi, Khalid Safa Hashim. 2010. Experimental studies on the fire endurance of reinforced concrete beams. Journal of Babylon University : Journal of Applied and Pure Sciences،Vol. 18, no. 4.
https://search.emarefa.net/detail/BIM-287257
Modern Language Association (MLA)
Kazim, Muhammad Mansur…[et al.]. Experimental studies on the fire endurance of reinforced concrete beams. Journal of Babylon University : Journal of Applied and Pure Sciences Vol. 18, no. 4 (2010).
https://search.emarefa.net/detail/BIM-287257
American Medical Association (AMA)
Kazim, Muhammad Mansur& Ulwan, Nada Mahdi Fawzi& al-Khalidi, Khalid Safa Hashim. Experimental studies on the fire endurance of reinforced concrete beams. Journal of Babylon University : Journal of Applied and Pure Sciences. 2010. Vol. 18, no. 4.
https://search.emarefa.net/detail/BIM-287257
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references.
Record ID
BIM-287257