Second Story Seismic Corner Bracing Above A Garage Door

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Second story seismic corner bracing above a garage door.

Complicating this design style is the interior spaces that are frequently open both horizontally and vertically over one and two story spaces resulting in reduced building stiffness of the lateral system minor 2002. Anyone recommend any other options for providing the proper bracing for this scenario. Tim healey in a house design where some main walls may have many openings portal frames can be the key to providing code compliant wall bracing. This leaves 1 8 on each side of the garage and 1 8 in the middle.

1 inch 25 4 mm 1 foot 304 8 mm. However like all remodeling projects adding a second story addition has a broad range of complexity and challenges. A second story room addition above an existing garage can make a substantial change to your current home s curb appeal and of course create an increase to your living space. 24 28 2 story gambrel garage with shed dormers pent roof carriage style doors larger windows cupola weatherwave gable vents and exterior light 2 story gambrel enjoy the spaciousness of the 2 story gambrel.

The large opening of a garage door and the weight of a second story room built over the garage can result in the walls being too weak to withstand earthquake shaking. Stories above braced wall line. Method pfg portal frame at garage door openings in seismic design categories a b and c. Areas include the high pressure eave and corner zones porch and roof overhangs gable ends and where.

A client wants to have a 20 garage door and an 11 garage door on a 32 wall. The connection of the sheathing to the supporting members in these areas is most critical and often may be detailed with a higher density of connectors than other roof areas. I have used the simpson strong tie wood strong wall portals before but the max opening is 16 4. For example in some cases the code will call for a 4 foot sheathed section on both sides of a garage door opening or at the house corner or flanking an entry door interfering with the.

Accommodate garage doors at the front of the residence mcmullin and merrick 2002. The examples above illustrate a portal frame solution with just one reinforced corner top two reinforced corners on a single garage door middle and two reinforced corners flanking a double garage door. Roof framing joins bearing walls or beams. The alternate braced wall panels described in section r602 10 3 2 shall also be permitted d.

Where supporting a roof or one story and a roof a method pfg braced wall panel constructed in accordance with figure r602 10 6 3 shall be permitted on either side of garage door openings. Methods of bracing shall be as described in sections r602 10 2 and r602 10 4 1.