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Earthquake Retrofitting Foundation Bolting Cripple Wall Bracing

Earthquake Retrofitting Foundation Bolting Cripple Wall Bracing

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Basic Concepts: How a Seismic Retrofit Works

Photo of earthquake damaged house that slid off the foundation during the 1994 Northridge Earthquake

Cripple Wall Bracing La Canada CA

Avalin Seismic Construction Co. Lic. # 613782 Los Angeles (877)265-8872

CRIPPLE WALL STEM WALL

Cripple Walls Before Seismic Retrofitting. "

cripple wall bracing

Cripple Wall Bracing Completed. "

Cripple Wall Bracing. "

Foundation bolting La Canada CA

Bracing the Cripple Walls with Plywood. Consequence of no house bolts

foundation bolt with square washer

Cripple Wall Shear Reinforcement

The Uniform Code of Building Conservation and the Los Angeles Building Code for how to build

Note that in most crawl spaces and some basements, no cripple walls are present. In those instances, no shear bracing is required.

Example 2 shows a wood-framed house with a less than 4-foot cripple wall that requires bracing and bolting.

The tragic loss of countless lives just isn't the one major negative impact of earthquakes; in addition they cause immeasureable dollars worth of injury to ...

THIS IS A PHOTO OF A TYPICAL CRIPPLE WALL THAT WAS PARTIALLY RETROFITTED. YOU CAN

Retrofit Bolting of Houses without Cripple Walls is Simple, Affordable, and Effective

Example 2: Before Photos

cripple-wall-Sheeting. house_bolting_cripple_wall_bracing

CRIPPLE WALL STEM WALL

Drawing: Retrofit Hardware keeps house from sliding on cripple wall

Why Choose Walnut Creek Construction for your Earthquake retrofit?

THIS IS WHY EVERY SEISMIC RETROFIT MUST ATTACH THE FLOOR TO THE TOP OF THE PLYWOOD. THIS HOUSE SLID OFF THE BOLTED AND PLYWOOD BRACED CRIPPLE WALLS.

... from sliding or toppling off of its foundation during an earthquake. Strengthening involves adding anchor bolts and plywood bracing in the crawl space .

Exterior Wall-to-Foundation Connection (Anchor Bolts)

Discover ideas about Earthquake Safety

... braced cripple walls. The following are simple illustrations to clarify these areas of retrofit.

cripple wall failure

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Without foundation bolts or anchors, a house can slide off of the foundation even if its cripple walls are braced with plywood shear panels.

Cripple Wall Retrofits

diagram 1.jpg

California Seismic Safety Commission 2005

A simple earthquake flaw can invite financial catastrophe. Most California homeowners ignore it

Even with foundation bolting and cripple wall bracing ...

Example 4: Before Photos

Earthquake Forces Travelling from Floor into Foundation through Shear Wall

Structural grade plywood for cripple wall bracing.

Weinstein Construction's process to reinforcing a cripple wall.

Mechanical type anchor bolt with square plate washer

Note the metal foundation plates (bolting) around the perimeter of the foundation.

cripple wall bracing

Preparing Your Home For An Earthquake: Exterior Wall to Foundation Connection (retrofit foundation plates)

House Bolting, Foundation Bolting & Cripple Wall Bracing The primary purpose of earthquake retrofitting is to keep your home from being displaced from its ...

Exterior view of a house's cripple wall framing structure

House with plywood shear walls that are not bolted to the foundation is shaken off the

Video Testimonials

Earthquake Retrofitting or House Bolting - Los Angeles, ...

Earthquake Retrofitting, Foundation Bolting & Cripple Wall Bracing | Earthquake Safety

SEISMIC RETROFITTING Foundation Bolting. 4 SEISMIC RETROFITTING Cripple Wall Bracing

Earthquake Retrofit a Home

... This foundation bolt shows the deterioration that can occur over time ...

A contractor with Seismic Safety shows the proper technique for applying plywood braces to a cripple

Earthquake retrofitting diagram showing angle iron sheer struts bolted to the foundation for houses without cripple

Retrofit Components: Bolts, Shear walls, and retrofit hardware

Floor attached to cripple wall through framing anchors.

Home Page | Foundation Bolting | Cripple Walls | Foundation Repairs| Photo Gallery| References | FAQ| Contact Us

Earthquake Retrofitting Los Angeles for wood frame buildings addresses what is known as “The Earthquake Weakness” – which involves the attachments of the ...

cripple wall bracing detail

Soft story retrofitting involves improving the pillars and platforms that these structures are built upon through bolting and bracketing which will help to ...

Earthquake Retrofit Services

Example 4 shows a wood-framed house that sits directly on the foundation and requires a bolt-only retrofit.

Foundation Bolting. cripple wall bracing

Seismic Retrofitting Your Home – Keep Educating and Encouraging Preservation of Yalecrest

Home Earthquake Vulnerabilities: Weak Cripple Walls – Cascadia Risk by BJ Cure

Soft story retrofitting involves improving the pillars and platforms that these structures are built upon through bolting and bracketing which will help to ...

House damaged by Eureka earthquake

Example 3: After Photos

Seismic retrofitting

CEA BB Project Overview Feb. 2019

Example 4 shows a wood-framed house that sits directly on the foundation and requires a bolt-only retrofit.

Earthquake Retrofitting, Foundation Bolting & Cripple Wall Bracing | Earthquake Safety Braces, Foundation,

FLOOR BOLTED TO SIDE OF FOUNDATION SHOWING RETROFIT COUNTER FORCE

Earthquake retrofitting is a construction technique put in place to keep your home from being displaced from its concrete foundation.

Home Page | Foundation Bolting | Cripple Walls | Foundation Repairs| Photo Gallery| References | FAQ| Contact Us

Seismic retrofit - bolt home to foundation with exterior anchors

Seismic retrofitting is the technical process of transferring the lateral loads generated in an earthquake from the house to the foundation.

Two types of houses built before 1979—"stem-wall” and “cripple-wall”—may benefit from retrofitting with foundation anchoring, which reduces the possibility ...

devastating Northridge earthquake

External bracing of an existing reinforced concrete parking garage (Berkeley)

A detail from the FEMA plan set indicating how to strengthen a weak cripple wall. The FEMA plan set is a prescriptive set of drawings intended to help ...

While ...

foundation repair on unstable foundation

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Photo of Earthquake Safety By Greg Sylvis - Pasadena, CA, United States. Photo

What is Earthquake Bracing and bolting?

Earthquake Retrofitting, Foundation Bolting & Cripple Wall Bracing | Earthquake Safety Earthquake Safety, Home

Drawing Retrofitted Cripple Wall

... Foundation Bolting, Foundation Bolting. Constructing Cripple Wall ...

cripple-wall-Sheeting. house_bolting_cripple_wall_bracing

Foundation inspection los angeles

Load Path of Earthquake Forces

You can protect your home form quake damage This foundation bolt ...

Program Overview, English October 2018