Experiment on Seismic Behavior of Frame with Specially Shaped Columns used Wide Flange in the First Floor and General on the above

Xuehui Zhang; Shuling Ke
July 2014
Applied Mechanics & Materials;2014, Issue 578-579, p318
Academic Journal
Studies show that the stiffness of the first floor column about concrete frame with general specially shaped column is insufficient, the column bottom will be compression damaged easily, the author advice using wide flange specially shaped column in the first floor to enhance the stiffness, so this paper designed a 1/3 scale RC frame with specially shaped columns used wide flange in the first floor and general on the above, furthermore the height of the first floor was higher than other floors. Then low frequency cyclic loading was experimented to the concrete frame, the seismic behavior of this kind frame such as damage characteristic, failure mechanism, bearing capacity, deformation capacity, hysteresis curve and storey drift were researched. It was shown that the seismic behavior of this structure was generally good, the method that changed the first floor to wide flange specially shaped column for concrete frame with specially shaped columns could enhance the stiffness of the first floor clearly, meanwhile the seismic behavior of the frame were improved.


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