The effects of fire on the bending strength of reinforced concrete beams
Date of Publication
2008
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Civil Engineering
Subject Categories
Civil Engineering
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Thesis Adviser
Bernardo Lejano
Defense Panel Chair
Jonathan Dungca
Defense Panel Member
Alexis M. Fillone
Abstract/Summary
The effect of fire on the flexural behavior of RC beams is investigated. Twenty-four reinforced concrete beams were constructed measuring 152 x 152 x 686 mm. Two (2) groups of beams were cast with different target concrete strengths, 20 and 30 MPa, exposed to fire at temperature above 300˚C for time durations of 0, 1, 2 and hours. Cooling was done at room temperature. The beams were tested using the third-pointy loading test (applying two transverse loads incrementally). The effect of elevated temperatures on the yield stress of steel inside the reinforced concrete beams was evaluated by talking the steel reinforcing bars from the beam after the beam was subjected to fire and testing the bars for their strength. Maximum loads and the load-deflection relationship of each beam was monitored and recorded. The percentage decrease in strength of the reinforced concrete beams as affected by exposure to fire was determined. Reduction in maximum loads and increase in deflection were observed. Maximum moment and yielding moment obtained from the experiment were compared to the theoretical nominal moment.
Abstract Format
html
Language
English
Format
Accession Number
TU19719
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
80 leaves, illustrations (some color), 28 cm.
Keywords
Concrete beams—Effect of high temperatures on; Concrete beams—Fatigue
Recommended Citation
Galang, J. M., & Molina, M. N. (2008). The effects of fire on the bending strength of reinforced concrete beams. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/5404
Embargo Period
4-23-2021
