Modal Behavior of a 10-Story BRB Frame with a Green Roof System
Minyi Huang
School of Engineering
Faculty Supervisor: Jenna Wong
This research evaluates the dynamic characteristics of a 10-story buckling-restrained braced (BRB) frame structure with different green roof configurations. A control model is compared with shallow and deep green roofs under dry, saturated, and super-saturated soil conditions. Modal analysis is conducted in ETABS to investigate changes in natural periods, mode shapes, and mass participation due to added mass from the green roof system. The study aims to quantify how varying soil moisture levels influence structural dynamic behavior and potential damping effects, providing insight into the role of green roofs in improving seismic performance.