Indexed by：
Abstract：
The I-section concrete filled steel tube (CFST) column and the bottom strengthened I-shaped cross section CFST column, in which the column flange was welded with steel plates, were proposed. Three column models with different constructions were tested under horizontal low cyclic loading. Model 1 was a conventional I-section CFST column ;model 2 was an I-section CFST column with its outer part at the bottom of flange welded with steel plates; model 3 was an I-section CFST column with its surrounding part at the bottom of flange welded with steel plates. The failure characteristics,load-bearing capacity, stiffness and degradation process, ductility and hysteretic energy dissipation capacity of the models were analyzed. The calculation formula for cross section and oblique section load-bearing capacity of bottom strengthened I-shaped cross section CFST column was given,and the results obtained from the calculation are in good agreement with those from the experiments. The study shows that the load-bearing capacity, ductility and seismic energy dissipation capacity of the bottom strengthened I-section CFST column are improved obviously compared with the conventional I-section CFST column.
Keyword：
Reprint Author's Address：
Email：
Source ：
Journal of Earthquake Engineering and Engineering Vibration
ISSN： 1000-1301
Year： 2013
Issue： 1
Volume： 33
Page： 97-105
Cited Count：
WoS CC Cited Count： 0
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 5
Affiliated Colleges：
