FIRE RESISTANCE OF REINFORCED CONCRETE COLUMNS
This report is comprised of two papers addressing the fire resistance of concentrically and eccentrically loaded reinforced concrete columns. Columns were 12 ft 6 in. (3.8 m) long and 12 in. by 12 in. (304 mm) in cross-section and had 1-1/2 in. (38 mm) cover to the tie bars. They were fabricated with either siliceous, carbonate or lightweight aggregate concrete. Specimens included columns with a variety of rectangular and circular columns. Test results show that concentrically-loaded columns or eccentrically-loaded columns designed according to ACI 318 have a nominal 3 hour fire endurance. An analysis of test results indicated that aggregate type and cross-sectional geometry are significant factors affecting fire resistance. A relationship of fire resistance of siliceous columns to load/strength ratios was obtained. Temperature distributions measured in selected cross-sections are also included. Measured fire resistances for eccentrically loaded columns were compared with companion columns tested with concentric loads.
-
Corporate Authors:
5420 Old Orchard Road
Skokie, IL United States 60077 -
Authors:
- Lin, T D
- Zwiers, R I
- Burg, R G
- Lie, T T
- McGrath, R J
- Publication Date: 1992
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: 36 p.
-
Serial:
- RESEARCH AND DEVELOPMENT BULLETIN
- Publisher: Portland Cement Association
Subject/Index Terms
- TRT Terms: Aggregates; Bearing capacity; Carbonate rocks; Columns; Cross sections; Eccentricity; Fire resistance; Geometry; Lightweight aggregates; Loads; Reinforced concrete; Silica stone; Temperature
- Uncontrolled Terms: Eccentric loading; Siliceous aggregates; Temperature distribution
- Old TRIS Terms: Concentric loading; Load/strength ratios
- Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;
Filing Info
- Accession Number: 00627038
- Record Type: Publication
- Report/Paper Numbers: RD101B
- Files: TRIS
- Created Date: Mar 9 1993 12:00AM