Using shear transfer at engineered wood floors

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Engineered wood products are specified for a wide range of light-frame floor assemblies in light commercial and multi-family construction. I-joists, glued-laminated timber (glulam), rim board, laminated veneer lumber (LVL), laminated strand lumber (LSL), and oriented strand lumber (OSL) are popular due to their availability, precision, strength, and consistent quality.

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Solid timber, solid construction performance

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Solid timber construction, sometimes called ‘mass timber,’ is an emerging set of engineered wood products—massive planar or frame elements used for walls, floors, roofs, partitions, and core elements of a building. As shown in Figure 1, examples include both glued configurations liked glued-laminated timber (glulam), structural composite lumber (SCL), and cross-laminated timber (CLT), as well as non-glued products like dowel-laminated timber (DLT); nail-laminated timber (NLT), cross-nail-laminated timber (CNLT), and interlocking cross-laminated timber (ICLT).

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Using modern wood for historic restoration

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When it comes to historic preservation projects, architects and installers can find themselves at a loss. Wood is the most traditional material, but also notoriously unstable. It has a tendency to warp and becomes vulnerable to rot, decay, and insects. Some replacement products are more durable, but far from historically accurate, such as aluminum-framed windows.

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Designing All-wood Podiums

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Wood ‘podium’ construction takes an age-old material and moves it into the 21st century. Structures retain sought-after features—beauty, familiarity, and carbon sequestration—while soaring to greater heights and achieving sometimes dramatic cost savings.

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Addressing Skilled Labor Shortages with SIPs

The net-zero ready Portland Community College Newberg Center used SIPs for an energy-efficient, airtight building envelop. Photo © Stephen Miller Photography

by Joe Pasma, PE

The good news is commercial construction is picking up after several dismal years, with construction spending projected to be 5.5 percent higher in 2014 than 2013. The bad news is the Associated General Contractors of America (AGC) has pointed out “a skilled labor shortage in the country may threaten projected growth and the ongoing recovery.” How can structural insulated panels (SIPs) help?

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Energy Efficiency and Building with Wood: Six Building Lifecycle Steps

Buildings have an impact on people and the environment throughout their entire lifecycle, starting with extracting resources from the earth to putting them back in the earth, or burning them, at the end of their lives. To evaluate the effect of buildings in this regard, everything from the energy they consume, the waste they generate, and the carbon dioxide (CO?) they emit must be considered throughout six major cycles.

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