Masoum Mohammadi Gharagoz

Aalto University · Department of Civil Engineering

In this study, concentric braced frame installed with a friction damper-disc-springs is proposed to enhance the seismic performance of RC framed structures. The structural configuration of the retrofit is outlined and the analytical model is explained. A performance-based seismic retrofit procedure combined with a genetic algorithm (GA) optimizatio...

In this study, a new recentering friction device (RFD) to retrofit steel moment frame structures is introduced. The device provides both self-centering and energy dissipation capabilities for the retrofitted structure. A hybrid performance-based seismic design procedure considering multiple limit states is proposed for designing the device and the...

In this study a machine learning-based design procedure for a new seismic retrofit system is presented and its seismic retrofit capability is validated by intensive seismic analyses. The retrofit system consists of a steel frame with rotational friction dampers (RFD) at beam-column joints and linear springs at the corners providing both energy diss...

In this study, concentric braced frame installed with a friction damper-disc-springs is proposed to enhance the seismic performance of RC framed structures. The structural configuration of the retrofit is outlined and the analytical model is explained. A performance-based seismic retrofit procedure combined with a genetic algorithm (GA) optimizatio...

Discontinuities are the most important property of rock mass that controls permeability. Effects of orientation, frequency, and the number of sets of discontinuities on the permeability were investigated before and after improvement by grouting using cement grout in this study. Rock samples having one, two, and three cross-sets of single discontinu...

Rock samples having one, two, and three cross-sets of single discontinuities and three cross-sets of discontinuities with one set having four parallel discontinuities, in different groups of various orientations (angle between planes of discontinuities and horizontal direction) of 0, 30, 45, 60 and 90 degrees in a total of 20 different groups that...

In this paper, the effect of discontinuity and lateral pressure on water permeability is investigated. Water permeability is one of the most important topics in rock mechanics and hydrogeology, the mechanism of which is a complex subject in engineering geology. Irrigation rate and hydraulic conductivity are used in high-volume sectors, including da...

The environment is one of the pillars of sustainable development in every country. With the increasing need for minerals as raw materials for various industries, the expansion of mining is inevitable. To prevent accidents, environmental degradation, and competing in the economic market, the best choice for the tailings dam is vital. Many qualitativ...

Discontinuities are the most important rock mass properties to control permeability and strength. Grouting is used generally to reduce permeability and increase strength as one of the earth treatment methods. The effect of orientation, frequency, and the number of sets of discontinuities on the permeability and the strength of rock have been invest...

The environment is one of the pillars of sustainable development in every country. With the increasing need for minerals as raw materials for various industries, the expansion of mining is inevitable. To prevent accidents, environmental degradation, and competing in the economic market, the best choice for the tailings dam is vital. Many qualitativ...