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NEW TECHNICAL NOTES
Effect of Large Diameter Horizontal Holes on the Bending and Shear Properties of LVL, Form V900
This new technical note accompanies Field Notching and Drilling of Laminated Veneer Lumber, Form G535, which provides guidance for notching and drilling on LVL when the end notching and drilling of horizontal through-thickness holes cannot be avoided. Form V900 provides an analytical tool in situations when horizontal holes exceeding the guidance provided in Form G535 are necessary.
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Effect of Large Diameter Horizontal Holes on the Bending and Shear Properties of Glulam, Form V700
This new technical note accompanies Field Notching and Drilling of Glued Laminated Timber Beams, Form S560, which provides guidance for notching and drilling on glulam when the end notching and drilling of horizontal through-thickness holes cannot be avoided. Form V700 provides an analytical tool in situations when horizontal holes exceeding the guidance provided in Form S560 are necessary.
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RESEARCH CENTER EXPANSION
Building Strong by the Numbers
APA’s Tacoma Research Center is expanding to accommodate the evaluation of full-scale structural assemblies, supporting research into innovative construction methods using engineered wood and mass timber components. The expansion includes a strong floor and strong wall, both of which must withstand the application of the tremendous forces that are necessary during structural testing.
How much steel and concrete does it take to break engineered wood?
Strong Floor:
- 28 tons of steel (rebar), 830 tons of concrete, 860 anchors
Strong Wall:
- 30 feet high, made up of 10 blocks, each block weighing more than 19,000 pounds