Cross-Laminated Timber Takes Wood Construction to Greater Heights Than Ever Before

Cross-laminated timber (CLT) is changing the way urban builders scrape the sky.

From London to Tokyo, the race is on to build the tallest wood-framed skyscraper in the world. Prized for its workability, low cost and visual aesthetics, wood was widely used by urban builders until the early 20th century, when fires triggered by the 1906 San Francisco Earthquake leveled the largely stick-built city. Until recently, the other knock on wood was a vertical one, in that stick-framed buildings generally top out at five stories, owing to the accumulation of dead and live loads in excess of the allowable loads for lumber.
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It’s Alive! Self-Healing Concrete, Materials Science and Other Evolutionary Developments

Legions of catatonic organisms lie asleep in the matrix, waiting only for momentary exposure to water and oxygen in order to awaken — whereupon the organisms immediately germinate, grow and fulfill their destiny, sealing the cracks in the fabric of their universe before falling dormant once again.
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Engineering with Kids: Popsicle Sticks, Spaghetti and Marshmallows

Back in March, a few colleagues and I were discussing how to prepare kids for college. With that subject in mind, I wanted to do something fun and meaningful for the kids in our community. So I organized some workshops in my back yard focused on engineering with kids who might be interested in exploring structural engineering — and summer was the perfect time to do it! We had a group of 12 kids, aged 7–11, who signed up and were all set to explore some engineering concepts. It was a learning experience for me, as well!
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BIM Inception: The Construction Language of the Future

Robots. Drones. 3D printing. Self-driving bulldozers. If residential construction is ripe for so-called disruption (and sweeping advancements already made by commercial and industrial builders says it is), then most technologists, forward-thinkers and first adopters agree we’ll need a native, digital, data-based language to help run it all. Continue reading “BIM Inception: The Construction Language of the Future”

Girls Inc. Visits Simpson Strong-Tie Lab

On July 6, the Simpson Strong-Tie home office in Pleasanton, California, welcomed girls from Girls, Inc. of Alameda County. This visit provided an opportunity for the girls to hear from and interact with the many women leaders of Simpson Strong-Tie.

The construction and manufacturing industries continue to be male-dominated fields. The visit provided the girls the opportunity to meet several of our women leaders and also learn about other career paths that might not be automatically associated with the manufacturing industry. Our leaders — including Jacinta Pister, senior vice president, Worldwide Manufacturing; Jennifer Lutz, vice president, Human Resources; and Shelby Short, director, Global Quality Systems — shared stories of their personal success and professional growth at Simpson Strong-Tie.
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Little Locales Using Big Data to Prevent Bridge Failures

Situated on the northwest coast of Oregon, the resort town of Seaside — population 6,685 — seems an unlikely place for advanced seismic and tsunami simulations. But just offshore Seaside’s charming 1920s boardwalk and its broad, sandy beaches famed for razor clamming, the Juan de Fuca tectonic plate is slowly sliding underneath the behemoth North American plate.
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Jump Start: Where Infrastructure Spending Typically Goes

Provisions of a $1.5 trillion infrastructure investment plan revealed by the White House in February 2018 included $200 billion in federal spending to incentivize local governments, support existing infrastructure loan programs like the Water Infrastructure Finance and Innovation Act (WIFIA), build projects of national significance, and provide rural block grants to states for investments into transportation, waste and power projects.
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Timber Strong Provides Real-World Engineering Experience

For the last three years, Simpson Strong-Tie has sponsored events at the Pacific Southwest Conference, a three-day competition promoted by the  American Society of Civil Engineers for civil engineering students. This year, 18  universities from Southern California, Nevada, Arizona and Hawaii sent teams to Tempe, Arizona, for the competition, which was co-hosted April 12–14 by Arizona State and Northern Arizona Universities.

The students compete in numerous events over the three days, with the two main events being Concrete Canoe and Steel Bridge builds sponsored by American Concrete Institute and American Institute of Steel Construction respectively. In the previous two years, Simpson sponsored Simpson Jeopardy and Timber Towers / Giant Jenga, but this year we were excited to sponsor the inaugural Timber Strong Design Build competition.
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Carbon-Fiber-Reinforced Polymer: Exploring Industrial Applications

The fact that carbon-fiber-reinforced polymer (CFRP) is strong enough to replace bulkier strengthening materials can be a surprise even to some experienced commercial contractors. After all, carbon fibers are only 5 to 10 microns in diameter, a little wider than spider silk.

Intuitively, it doesn’t seem that these tiny fibers could be a major component of a concrete strengthening system several times stronger than mounted steel plates.
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Better Engineering for Stronger, Longer-Lasting Bridges and Wastewater Infrastructure

Eighty-one years ago this May, traffic opened on a newly constructed bridge span between Marin County, California, and the city of San Francisco. At 4,200 feet long and with towers 746 feet high, the steel suspension bridge was the longest and tallest bridge of its time. Built at a cost of $35 million, held together with 1.2 million rivets, and painted international orange from end to end, the Golden Gate Bridge was an instant symbol not just of California idealism, but of American engineering and construction might.

While the Golden Gate is no longer the longest or tallest bridge in the world, its iconic status has endured. Named one of the seven wonders of the modern world by the American Society of Civil Engineers, the Golden Gate enjoys regular special attention from 13 ironworkers and 28 painters who replace corroding steel and rivets with high-strength steel bolts and constantly touch up the span with paint to prevent corrosion.
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