Abstract
A composite column with prefabricated steel cage (PSRC column) has been developed for fast construction of industrial buildings with large and long columns. For better constructability, the steel cage is prefabricated with bolt-connected longitudinal steel angles and transverse steel plates, and steel forms (for casting concrete) can be integrated with the steel cage. In the present study, to investigate the seismic performance of PSRC columns, cyclic lateral loading tests were performed for a conventional concrete-encased steel (CES) column and five PSRC columns. The test results showed that the steel angles located at the corners of the cross section increased the flexural strength and stiffness of columns. Further, the use of transverse Z-section plates alleviated spalling of cover concrete, which increased the deformation capacity. The tested strength and deformation capacity agreed with the predictions of existing models.
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