16-04-2016, 06:48 PM
19-04-2016, 11:54 AM
earthquake vibration control using modified frame shear wall free pdf download
As performance-based seismic design becomes more prevalent, increasing attention is being given to improving building performance during seismic events. Much attention has been given to improving the seismic performance of steel and concrete structures, with relatively little attention having been given to wood frame buildings. Although life-safety is generally not a significant concern for wood frame buildings, the financial impact associated with the damage to such structures during strong earthquakes can be devastating. The objective of this research was to determine, through experimental testing, the suitability of supplemental fluid dampers for improving the seismic performance of wood-framed shear walls. Experimental testing full-scale wood-framed shear walls was performed using a seismic shaking table in which in-plane excitation was applied at the base of the walls. Two different wall configurations were tested; one that employed conventional framing and another that employed a modified framing system combined with a supplemental fluid damper. The results of the shaking table tests revealed that the wall configuration that employed a supplemental fluid damper offered improved performance as compared to the conventional wall configuration in terms of reducing the peak inter-story drift, peak acceleration, and inelastic energy dissipation demand on the wood framing.
As performance-based seismic design becomes more prevalent, increasing attention is being given to improving building performance during seismic events. Much attention has been given to improving the seismic performance of steel and concrete structures, with relatively little attention having been given to wood frame buildings. Although life-safety is generally not a significant concern for wood frame buildings, the financial impact associated with the damage to such structures during strong earthquakes can be devastating. The objective of this research was to determine, through experimental testing, the suitability of supplemental fluid dampers for improving the seismic performance of wood-framed shear walls. Experimental testing full-scale wood-framed shear walls was performed using a seismic shaking table in which in-plane excitation was applied at the base of the walls. Two different wall configurations were tested; one that employed conventional framing and another that employed a modified framing system combined with a supplemental fluid damper. The results of the shaking table tests revealed that the wall configuration that employed a supplemental fluid damper offered improved performance as compared to the conventional wall configuration in terms of reducing the peak inter-story drift, peak acceleration, and inelastic energy dissipation demand on the wood framing.