Rail-Post Connections for Wooden Decks Part 2

Figure 1. A Simpson Strong-Tie HD2A, installed sideways on a joist, proved able to resist the torque at the base of the post. The HD2A was installed with three ½-inch-diameter bolts: two bolts in the joist are loaded in shear, while the third bolt — passing through the post, the band, and the connector itself — is loaded in tension. As part of the tested design, we also installed another ½-inch bolt in the lower part of the post and the band joist. This connection detail requires that the post be installed at a deck joist.

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Researchers at Virginia Tech were able to secure the post by orienting the Simpson Strong-Tie sideways along the joist.

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