Structural performance of reinforced concrete bubble slabs after exposing to fire flame
Other Title(s)
الأداء الإنشائي للبلاطات الخرسانية المسلحة و المجوفة بعد التعرض الى لهب النار
Author
Source
Journal of Engineering and Development
Issue
Vol. 19, Issue 4 (31 Jul. 2015), pp.1-14, 14 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2015-07-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
This paper presents the results of experimental program investigating the effect of fire flame (high temperature) on the structural performance of bubble slabs.
The program consisted casting and testing nine specimens.
The dimensions of the specimens were 270 X 500mm in plane and with two different thicknesses; 90 and 140mm.
All specimens were cast with normal concrete of approximately 25 MPa compressive strength.
Seven specimens were burnt using a diesel furnace and two specimens were kept without burning as controls.
The test parameters were; the fire flame temperature (200, 500, and 800 oC), the cooling method is processed gradually by left the slabs in the air or suddenly by using water, the exposure time (1, 1.5, and 2 hours), and thickness of slabs (90 and 140mm).
After cooling, the specimens were simply supported in one direction and tested under a uniform load applied gradually till failure.
The test results showed that, the residual strength of specimens decreased from 71.8% to 21.6% and their central deflection increased with increasing the fire flame-temperature from 200 to 800 o C and exposure time from 1 to 2 hours.
For suddenly cooling specimen the residual flexural strength and central deflection were less than those of same specimen when cooled gradually.
Finally, increasing the thickness of bubble slabs by 56% improved distinctly both the residual strength about 45% and stiffness of specimens
American Psychological Association (APA)
al-Ghisham, Thair Suud Salman. 2015. Structural performance of reinforced concrete bubble slabs after exposing to fire flame. Journal of Engineering and Development،Vol. 19, no. 4, pp.1-14.
https://search.emarefa.net/detail/BIM-829872
Modern Language Association (MLA)
al-Ghisham, Thair Suud Salman. Structural performance of reinforced concrete bubble slabs after exposing to fire flame. Journal of Engineering and Development Vol. 19, no. 4 (Jul. 2015), pp.1-14.
https://search.emarefa.net/detail/BIM-829872
American Medical Association (AMA)
al-Ghisham, Thair Suud Salman. Structural performance of reinforced concrete bubble slabs after exposing to fire flame. Journal of Engineering and Development. 2015. Vol. 19, no. 4, pp.1-14.
https://search.emarefa.net/detail/BIM-829872
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-829872