Steel slit dampers (SSDs) are yielding dampers made of steel plates with several slits. This type of damper absorbs energy through the yielding of steel strips. In this study, the seismic behavior of proposed SSDs is investigated. To achieve this purpose, the finite element models of the one-column and two-column SSDs with different slit dimensions and number of slits are created. Then, the developed models are only subjected to cyclic loading. Afterward, experimental specimens of dampers with the highest ultimate and maximum strength are fabricated and tested. Based on the obtained experimental results, the SR1 damper with steel strips in the shape of square root function and the E1 damper with elliptical slits possess the highest energy absorption among the tested specimens. Furthermore, the tested two-column slit dampers have higher initial strength than one-column slit dampers. Also, the one-column slit dampers have more stable cyclic behavior and less strength drop in the applied displacement cycles.

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