| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 95 === Most fire resistance codes are based on the experiment
results of small-scale specimens. The study on the behavior of
reinforce concrete beam-column sub-assemblage subjected to
elevated temperature is still very limited. This research aims at the
behavior of the beam-column sub-assemblages in a 7-story
residential building subjected to fire.
In the analysis, ANSYS program is used to predict the
temperature distribution of the column section.In the experimental
work,4 full-scale beam-column sub-assemblage specimens
were tested,two of them were tested under room temperature, while
the others were tested under elevated temperature. The key variables
are the temperature distribution of the column section and their
deformation behavior.
The primary results of this research are as follows:
1.During the heating stage , the axial deformation of NC and SCC
column is not clear, however, SCC column had 1.7 times more
deformation than NC one during the cooling stage.
2.Under the condition of room temperature, the upper column had
positive curvature, while the lower column had negative curvature. Similar behavior was also observed in the post-fire test. Relative
more pronounced linear behavior was found in NC column,
which could be due to the less spalling occurred in NC column.
3.After subjecting to the fire, the load-deformation relationship of
NC and SCC columns is almost linear. The stiffness of SCC
column is about 0.9 times of that of NC column.
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