Your Seismic Retrofit Expert
503-997-6129

HOME | ABOUT US | NEWS & EVENTS | EMAIL
OUR RETROFIT SERVICES | PROJECT PHOTOS | EARTHQUAKE SAFETY | RECENT QUAKES | FAULT MAP
Foundation and Basement Project Photos

Is your home bolted down to its foundation? If it's not, when an earthquake hits, your home may experience more movement and damage, increasing repair costs and putting you and your family at greater risk.

If you are not sure if your home is retrofitted—or to see examples of the parts and application process—please review the images below. Contact us to learn more or to schedule a free consultation.

Email Us
or Call: 503-997-6129
Typical Layout in a Full Height "Open" Basement

gemmell construction earthquake home retrofitting images

Simpson UFPs & FJAs connect the Sill Plate & Floor Joist System to the Foundation every Four Feet in an unfinished Basement.



Typical Connection of Sill Plate & Floor Joist System to Full Height Foundation

Option of using HG Clips to Re-enforce Sill plate to Rim Joist Connection Shown.



Full Replacement of Original 2x4 Cripple Wall with New 2x6 & Plywood Construction



Cripple Wall with New Sill Plate Bolts Epoxied into the Old Foundation Stem Wall

Connect the Sill Plate & Floor Joist System to the Foundation every Four Feet in an unfinished Basement.



Old Portland 2x4 Cripple Wall Re-enforced with Plywood Shear Panelling & Connected to the Floor Joist System

Bringing Shear Strength to the Wall after it has been Bolted to the Foundation as Well as Keeping the House Connected to the Cripple Wall - The Cripple Wall stays on the Foundation & the House stays on the Cripple Wall.



Simpson Brand A34 Clips Connecting the Top of the Cripple Wall To the Main House Structure's Floor Joist System




 

Architectural Heritage Center Logo
Oregon Remodelers Association Logo NARI logo earthquake tech gemmell construction llc logo