In panelized roof construction, holdowns are used to anchor concrete or masonry walls to the roof framing. Holdowns can be separated in two basic categories – post-installed and cast-in-place. Cast-in-place holdowns like the STHD holdowns or PA purlin anchors are straps that are installed at the time of concrete placement.

The STHD is an embedded strap-tie holdown offering high loads in both wood and cold-formed steel construction. When installed on the forms with the StrapMate ® strap holder, the unique …

Holdown (holdown, hold-down, or hold down) or tie-down in structural engineering refers to the steel device or hardware that is installed at the end of a plywood shear wall. The hold downs provide uplift resistance against the overturning moment imposed on the wall due to "in-plane" lateral load applied at the top of the wall.

General notes and instructions for proper installation of our structural holdown and tension tie products to ensure optimal performance.

Code-listed connectors for concrete and masonry designed to transfer tension loads in a wide variety of applications. Light-capacity foundation strap. Bolts to foundation and nails or bolts to post. Embedded strap holdowns for solid end posts. Embedded strap holdowns for built-up 2x end posts. Embedded strap holdowns for solid end posts.

Earthbound SlackJack: a seismic, snow and wind load holdown system for wood framed structures, Intact Structural Supply. Contact us: 1-800-944-5669 Favorite Links

When designing a shearwall according to the International Building Code (IBC), a holdown connector is used to resist the overturning moment due to lateral loading. From a structural statics point of view, a shearwall without dead load or holdowns would have zero lateral-resisting capacity without any restraint to resist the overturning moment.

2024年5月6日 · In framing, holdowns are connectors used to anchor the bottom plate of a wall to the foundation or concrete slab. They are used in seismic or high-wind areas to resist lateral forces that can cause the wall to overturn or collapse. Holdowns are made of galvanized steel and are installed at the end of a wall where it meets the foundation.

HDU Holdown Installation Guide. HDU holdowns are pre-deflected during the manufacturing process, virtually eliminating deflection under load due to material stretch. They use Strong-Drive ® SDS Heavy-Duty Connector screws which install easily, reduce fastener slip and provide a greater net section when compared to bolts.

The STHD is an embedded strap-tie holdown offering high load capacity and a staggered nail pattern to help minimize splitting. The STHD incorporates many features that aid correct installation and improve performance.