Publications

This study evaluates the cyclic response of diagonally reinforced coupling beams (DRCBs) and examines potential limitations in current design codes. Using experimental tests and analysis, the research assesses how embedded longitudinal bars, axial restraints, and confinement details affect force-deformation behavior. Results show specimens with axial restraints or embedded bars exhibit significant overstrength, while incorporating longitudinal bars in calculations reduces rotational capacity. A new force design limit is proposed for improved seismic performance.

This study applies detailed performance-based earthquake engineering methodology to assess the seismic vulnerability of a high-value laboratory facility in Vancouver, Canada. Using state-of-the-art performance assessment tools, the research quantifies seismic loss potential and demonstrates practical implementation for practicing engineers. The results provide the first benchmark study for code-based design performance and offer valuable information for engineers and facility stakeholders to make informed risk-management decisions.

My thesis presents an equivalent energy-based design procedure (EEDP) for seismic design of outrigger systems in tall buildings. Using energy balance concepts, elastic single-degree systems are equated to equivalent nonlinear systems, with plastic mechanisms used to derive design forces. The EEDP allows engineers to design outrigger-wall buildings to achieve different performance objectives at various seismic hazard levels, creating earthquake-resilient buildings.

This paper presents an equivalent energy design procedure (EEDP) for seismic design of outrigger systems in tall buildings. Three prototype outrigger-wall buildings of various heights are designed for Vancouver, Canada, with detailed finite element models developed to assess seismic performance using FEMA P695 methodology. Results demonstrate that EEDP efficiently designs outrigger systems that achieve sufficient margin of safety against collapse while satisfying multiple performance objectives at different seismic hazard levels.

This study addresses seismic risks to Vancouver's growing high-rise buildings by creating a detailed inventory and designing a representative prototype building according to Canadian building codes. Using state-of-the-art performance assessment methods, the research evaluates structural safety under design-level earthquakes through seismic hazard modeling, fragility analysis, and loss assessment. The results provide building owners and stakeholders with data for informed risk management decisions