Index Catalog // ScholarsArchive@OSU

Mechanical stress grading of dahurian larch structural lumber

Creator:: Gupta, Rakesh, Ethington, Robert L., and Green, David W.
Abstract:: The objective of this study was to test a method under development for assigning allowable properties to foreign species graded by American Lumber Standard machine-stress-rated (MSR) rules. The method was tested on dahurian larch (Larix dahurica), a major softwood species that grows in the Russian Far East and could be...
Resource Type:: Article

Evaluation of Tsunami Loads on Wood Frame Walls at Full Scale

Creator:: Linton, David, Gupta, Rakesh, Cox, Dan, van de Lindt, John, Oshnack, Mary Elizabeth, and Clauson, Milo
Abstract:: The performance of full-scale light-frame wood walls subjected to wave loading was examined using the Large Wave Flume of the Network for Earthquake Engineering (NEES) Tsunami Facility at Oregon State University. The hydrodynamic conditions (water level and bore speed) and structural response (horizontal force, pressure, and deflection) were observed for...
Resource Type:: Article

Effectiveness of Small Onshore Seawall in Reducing Forces Induced by Tsunami Bore: Large Scale Experimental Study

Creator:: Oshnack, Mary Elizabeth, Aguíñiga, Francisco, Cox, Daniel, Gupta, Rakesh, and van de Lindt, John
Abstract:: Tsunami force and pressure distributions on a rigid wall fronted by a small seawall were determined experimentally in a large-scale wave flume. Six different seawall heights were examined, two of which were exposed to a range of solitary wave heights. The same experiment was done without a seawall for comparison....
Resource Type:: Article

Wave Impact Study on a Residential Building

Creator:: van de Lindt, John W., Gupta, Rakesh, Cox, Daniel T., and Wilson, Jebediah S.
Abstract:: Recent natural disasters around the world including both tsunamis and hurricanes, have highlighted the inability of wood buildings to withstand wave and surge loading during these extreme events. Little is known about the interaction between coastal residential light-frame wood buildings and wave and surge loading because often little is left...
Resource Type:: Article

Sustainable Development and Green Buildings

Creator:: Sinha, Arijit, Gupta, Rakesh, and Kutnar, Andreja
Abstract:: Global sustainability goals have led to the development of the green building movement. The Green Building Program, stemming from the movement, has had unprecedented success as it provides a quantifi able metric to people’s efforts towards sustainable development. Sustainable development and green buildings are often used interchangeably. Although, sustainable development...
Resource Type:: Article

A Dual-Objective-Based Tornado Design Philosophy

Creator:: van de Lindt, John W., Pei, Shiling, Dao, Thang, Graettinger, Andrew, Prevatt, David O., Gupta, Rakesh, and Coulbourne, William
Abstract:: Tornadoes represent a unique natural hazard because of the very low probability of occurrence, short warning times (on the order of only a few minutes), and the intense and destructive forces imposed on engineered and non-engineered buildings. The very low-probability very high-consequence nature of a tornado strike makes designing for...
Resource Type:: Article

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

Creator:: Sinha, Arijit, Nairn, John A., and Gupta, Rakesh
Abstract:: Fracture toughness of wood and wood composites has traditionally been characterized by a stress intensity factor, an initiation strain energy release rate (G[subscript init]) or a total energy to fracture (G[subscript f]). These parameters provide incomplete fracture characterization for these materials because the toughness changes as the crack propagates. Thus...
Resource Type:: Article

Method to Determine Locations of Tsunami Vertical Evacuation Shelters

Creator:: Park, Sangki, van de Lindt, John W., Gupta, Rakesh, and Cox, Daniel
Abstract:: The 2004 Indian Ocean tsunami and the 2011 Great Tohoku Japan earthquake and tsunami focused a great deal of the world’s attention on the effect of tsunamis on buildings and infrastructure. When a tsunami impacts structures in a coastal community, the structures are often not strong enough to withstand the...
Resource Type:: Article

Characterizing perpendicular-to-grain compression (C-perpendicular to) behavior in wood construction

Creator:: Basta, Craig Thomas, Gupta, Rakesh, Leichti, Robert J., and Sinha, Arijit
Abstract:: Current compression perpendicular-to-grain (C-perpendicular to) design values for wood members are based on mean stress obtained from ASTM D143 specimen. The standard ASTM test with metal on wood bearing has limited applicability in modern construction assemblies with C-perpendicular to loading scenarios. Previous work has shown that end-bearing conditions and wood-on-wood...
Resource Type:: Article

Effect of grain angle on shear strength of Douglas-fir wood

Creator:: Gupta, Rakesh and Sinha, Arijit
Abstract:: The effect of grain angle (GA) on shear strength of Douglas-fir has been evaluated. Shear block specimens with a GA varying from 0 to 90° was loaded in the shear plane, resulting in failure mode transitioning from parallel to grain shear to rolling shear. As expected, shear strength decreased as...
Resource Type:: Article

Revisiting the neutral axis in wood beams

Creator:: Davis, Philip M., Gupta, Rakesh, and Sinha, Arijit
Abstract:: For wood beams, it is often assumed that the neutral axis (NA) is located at the centroid of the beam. This would be the case for isotropic and homogeneous materials but these prerequisites are not valid for wood. The varying grain patterns and knots located throughout wood make wood anisotropic...
Resource Type:: Article

Effect of incising and preservative treatment on shear strength of nominal 2-inch lumber

Creator:: Morrell, Jeffrey J., Gupta, Rakesh, Winandy, Jerrold E., and Riyanto, Djoko S.
Abstract:: This study evaluated the effects of pretreatment incising of dry lumber and preservative treatment on the shear strength of 1980 pieces of 2 X 4 dimension lumber (nominal 50 mm X 100 mm X 3.6 m long). Three species groups (Douglas-fir, Hem-Fir. and Spruce-Pine-Fir-South) and two commercially produced machine-stress-rated grades...
Resource Type:: Article

ScholarsArchive@OSU

Mechanical stress grading of dahurian larch structural lumber

Evaluation of Tsunami Loads on Wood Frame Walls at Full Scale

Effectiveness of Small Onshore Seawall in Reducing Forces Induced by Tsunami Bore: Large Scale Experimental Study

Wave Impact Study on a Residential Building

Sustainable Development and Green Buildings

A Dual-Objective-Based Tornado Design Philosophy

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

Method to Determine Locations of Tsunami Vertical Evacuation Shelters

Characterizing perpendicular-to-grain compression (C-perpendicular to) behavior in wood construction

Effect of grain angle on shear strength of Douglas-fir wood

Revisiting the neutral axis in wood beams

Effect of incising and preservative treatment on shear strength of nominal 2-inch lumber

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