Showing results 1 - 37 of 37
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An anchor side plate is used to connect the concrete foundation to the sill plate from the exterior as part of a seismic retrofit when the sill plate is not accessible from the interior of the home
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Anchor bolts should be at least 1/2-inch diameter and should be embedded at least 7 inches into the foundation, spaced not more than 6 feet apart, and between 3.5 and 12 inches from each end of the sill plates.
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Brick veneer framed wall supported by a concrete slab-on-grade foundation with a turn-down footing insulated on its top surface, showing anchorage of the wall to the foundation for seismic resistance
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Brick veneer is supported by a concrete stem wall thermally separated from the slab-on-grade foundation with turn-down footing which is also insulated on top; anchorage for seismic resistance is also shown
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Concrete slab-on-grade foundation with a turn-down footing insulated on its top surface, showing anchorage of the wall to the foundation for seismic resistance
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Connecting hardware helps tie the roof to the walls to ensure a continuous load path to improve a building’s resistance to high winds, floods, and earthquakes.
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Connecting hardware helps tie the walls to the top plates and rim joists to ensure a continuous load path to improve a building’s resistance to high winds, floods, and earthquakes.
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Correct seismic retrofit hardware for securing the sill plate to foundation wall
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Critical connections for providing a continuous load path in buildings and storm shelters
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Detail for reinforcing a cripple wall to resist earthquake movement by installing anchor bolts and plywood reinforcement.
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Externally insulated concrete slab-on-grade foundation with a turn-down footing, showing anchorage of the wall to the foundation for seismic resistance
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Externally insulated post-tensioned concrete slab-on-grade foundation wall with a turn-down footing showing anchorage of the wall to the foundation for seismic resistance
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Externally insulated post-tensioned concrete slab-on-grade foundation wall with a turn-down footing showing anchorage of the wall to the foundation for seismic resistance
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For seismic resistance in basement, crawlspace, and crawlspace “cripple” wall foundations, connect the plywood or OSB sheathing to the wall framing, rim joist, and sill plate and anchor bolt the sill plate to the foundation
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For seismic retrofit of crawlspace with posts and piers, add cross bracing to posts; add cross bracing and solid blocking between floor joists
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Framing anchors, anchor bolts, joist hangers, and bridging pieces all help to tie the components of the floor system together and to the foundation to increase resistance against seismic forces.
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Fuel tank is elevated above flood waters on a base of structural fill and anchored to the concrete pad
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Insulating a crawlspace foundation with “cripple wall” in warm climates; in Climate Zones 5+ replace the foil- or plastic-faced fiberglass batt/roll insulation with impermeable rigid insulation or closed-cell spray polyurethane foam
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Joist straps or hangers and metal connector plates can reinforce a post-and-pier foundation against seismic movement
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Possible failure scenarios due to house sitting on poorly braced and secured cripple wall
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Shear Strength Comparison Between a Foundation Stud Anchor (on left) and a Shear Transfer Angle (on right)
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The cripple wall hiding the post-and-pier foundation of this wood framed house toppled when the house was shifted partially off its piers by an earthquake
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The flat retrofit foundation plate is used to connect the concrete foundation to the sill plate from the exterior of the building as part of a seismic retrofit
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The polyethylene ground cover in the crawlspace is continuous at interior posts and piers
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The universal retrofit foundation plate is used to connect the concrete foundation to the sill plate as part of a seismic retrofit
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This wood-framed wall is connected with framing anchors, metal strapping and ties, and anchor bolts to secure the roof to the walls and walls to the foundation
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Three different anchoring methods are shown for making the home more resistant to getting moved off its foundation in an earthquake.
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Three types of foundation walls: Stem-plus-wood stud cripple wall, reinforced concrete wall, and reinforced concrete block/masonry wall
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To increase a masonry-walled home’s resistance to seismic forces, solid wood blocking is added between the roof rafters, anchors are added to connect the brick wall to the rafters and floor joists, building diaphragms are added, foundation braced
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Vented crawlspace cripple wall has seismic retrofits – plywood is added on interior that fastens to extra blocking added at sill plate and connected to foundation with new anchor bolts
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Wrong – The house was not bolted to the foundation and shifted off the foundation during an earthquake.