https://www.shearwalls.com/home daily 1.0 2024-07-11 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/accfffc1-8c40-4ba2-be8c-e45f40227cb7/Contact+info.jpg Home https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/85beaa3a-0077-4c5d-a5ee-1c9cb6818d9c/Cover--Earthquake+Strengthening+for+Vulnerable+Houses+and+Apartments.jpg Home - More than you thought was possible to know about earthquake “retrofits,” including Soft Story strengthening. Order from “Buy BOOKS & PDFs” in the menu above. If you wish to support the author and order directly from him at full retail plus shipping and handling, the gesture is greatly appreciated. He is not a retail merchant nor a shipping department, though, and offers the book at one price that includes sales tax and basic trackable shipping & delivery within about two weeks. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/1648948119908-GKUQAZB485JMQA7P8429/Cover--Front--Lo+Res--DSC03152.jpg Home https://www.shearwalls.com/why-retrofit daily 0.75 2022-04-03 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/8ba63e3a-9ab3-4453-a81b-a69665d9cefc/cripplewall-failure.png Earthquake Retrofits--Why? Figure 1. A weak cripple-wall that failed during an earthquake, leading to collapse of the house above. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/3a6033e3-b0b5-4dca-b7a8-829f53bdcdb1/sliding-failure.png Earthquake Retrofits--Why? - Make it stand out Figure 2. This house slid off of its foundation because the wood framing was not adequately connected to the top of the concrete footings. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/94f8d6d8-6c0e-4a31-9c13-6dae6f32de60/angle-iron.png Earthquake Retrofits--Why? Figure 3. The rusty “angle iron” cannot resist appreciable earthquake force. The shiny hardware to the left in the photo was installed as a second retrofit. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/d67c44c9-57b6-4208-8031-cdc691799430/garage-failure.png Earthquake Retrofits--Why? Figure 4. The author prevented damage in a house similar to this one by installing about $25 worth of hardware. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/abb67969-85f4-42c7-816b-f95706ba87ed/weak-story-failure.png Earthquake Retrofits--Why? - Make it stand out Figure 6 The building on the left used to be a two-storeys, until a quake collapsed the “soft story” at the parking level. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/43d486d1-e9fb-4083-83db-a1955460b8a6/condo-front-wall.png Earthquake Retrofits--Why? Figure 5. Condominiums often have extensive openings in their front and rear walls. These openings weaken the walls and often lead to earthquake vulnerabilities in such buildings. https://www.shearwalls.com/1st-edition-errata daily 0.75 2023-05-26 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/dd25d849-39ff-42bf-9eb1-236398863604/Shear+Wall+Guide+Cover--1st+Ed.jpg 1st Edition Errata Figure A. Errata apply to the FIRST edition of the book, with cover as shown above. https://www.shearwalls.com/inspection-and-observation daily 0.75 2022-04-03 https://www.shearwalls.com/packaged-plans daily 0.75 2022-04-03 https://www.shearwalls.com/free-downloads daily 0.75 2022-04-08 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/5dd670c2-d1c2-4196-89e7-3d3b0bf7daea/Paul+R--7-2-13+PT++A+HD+bolt+rust+on+PT.jpg FREE downloads Figure 1. The PT mudsill in this photo was manufactured around 2004. The rusted anchor rod and nut securing this tie-down bracket was eight years old when this photo was taken in 2012. Now it is . . . much older. How effective will it be when an earthquake presses it into service? Photo courtesy of Paul Rude, Golden Gate Chapter, American Society of Home Inspectors. https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/33a47a19-be18-4d58-b6ef-e6dde816bf1c/DSC09956.JPG FREE downloads Figure 2. “Chimney of Death” https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/2f58100e-b295-4c0f-8eff-90878e8bb482/Roof+Weakness.jpg FREE downloads Figure 3. Roof framing circa 1915, where rafters perch on the ends of overhanging ceiling joists. https://www.shearwalls.com/shop-books daily 0.75 2022-04-05 https://www.shearwalls.com/shop-books/p/earthquake-strengthening-for-vulnerable-homes monthly 0.5 2022-04-06 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/1648856916852-L3N5F697PGKJK5E8B72U/EQ+book--FRONT+cover.jpg Shop for BOOKS - Earthquake Strengthening for Vulnerable Homes https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/1648856928272-7QYC2LJEBR67E9ON8R7A/EQ+book--BACK+cover.jpg Shop for BOOKS - Earthquake Strengthening for Vulnerable Homes https://www.shearwalls.com/shop-books/p/wood-framed-shear-wall-construction-an-illustrated-guide monthly 0.5 2022-04-06 https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/1648948119908-GKUQAZB485JMQA7P8429/Cover--Front--Lo+Res--DSC03152.jpg Shop for BOOKS - Wood-Framed Shear Wall Construction--an Illustrated Guide https://images.squarespace-cdn.com/content/v1/6244c20e6526236fbf15be24/1648948309990-MHIQXOXK8CH4549LS7IG/Current+back+cover--cropped.jpg Shop for BOOKS - Wood-Framed Shear Wall Construction--an Illustrated Guide