Authors' reply to discussion by G.P. Mavroeidis of "Displacement Damping Modification Factors for pulse-like and ordinary records"

This short communication is in reply to the discussion by Mavroeidis [1] of the work by Mollaioli et al. [2] on displacement Damping Modification Factors (DMFs). First of all we would like to thank the discusser for the interest in our work. This discussion, in fact, gives us the opportunity to compare the results of Mollaioli et al. [2] also with another work from literature dealing with DMFs and near-fault pulse-like ground motions, the study by Hubbard and Mavroeidis [3] mentioned in [1]. The reason why the study by Hubbard and Mavroeidis [3] was not cited in Mollaioli et al. [2] is because we were not aware of the paper. For this, we apologize. As already reported in Mavroeidis [1], in Mollaioli et al. [2], records from both near-fault pulse-like and ordinary ground motions are used to calculate DMF spectra. Based on results of regression analyses, an equation for the prediction of the DMF for near-fault pulse-like ground motions is also proposed. In the following sections, a brief summary of Mollaioli et al. [2] is first reported. Then, replies are given to specific comments made by Mavroeidis [1]