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If the building has not been retrofitted, an earthquake can cause serious damage to a home, especially. Retrofitting is the modification of a structure by adding new components to make the building stronger. Pursuing the 1994 Northridge earthquake, the severity of structural issues in residential neighborhoods varied considerably from house to accommodate dependant upon the steps each homeowner had delivered to fortify their property.
Statistics show again and again that during seismic activity, houses that were retrofitted could have less damage than a home that hasn't been reinforced. It was the truth within the Long Beach earthquake of 1933, which ended in the structural failure of brick buildings without reinforced masonry walls, including many school buildings in your community. Buildings with reinforced concrete had very little, if any, structural issues. In the aftermath of the magnitude 6.25 quake, California's Riley Act was adopted, which required local governments through the state to determine building departments and inspect newly constructed homes and businesses. Throughout the years that followed, new building codes were implemented requiring the bolting of any wooden walls to the structure's foundation.
Especially in areas like southern California it is quite important to think about the dangers of earthquakes. So that you can prevent and minimize harm to a home during an earthquake, and the possibility of the costly need for foundation replacement, it's essential to consider earthquake retrofitting. Before, 50 years or maybe more ago, buildings were mainly designed architecturally to endure one sort of load-gravity, which only creates an up-and-down pressure or motion.
In recent years, however, this has been widely recognized that a lot of earthquakes create pressures over a structure moving back and forth, making a lateral load. Thus, older buildings, originally designed just to adequately support gravity loads, may collapse as a result of the lateral pressure of the earthquake.
House bolting is a method of retrofitting where a property is securely fastened on the foundation. It reduces the potential for earthquake damage by increasing the home's resistance to ground motion. Any house built just before 1950 that is not retrofitted, will not be mounted on its foundation; it is simply resting about the home's concrete base. Within an earthquake, structures like these can certainly slide off from their foundation and collapse. Most of the homes that fell off of their foundation or were damaged during the Northridge quake were not bolted to the foundation.
Yet another way a home's structural integrity could be improved is actually by bracing cripple walls. A cripple wall is definitely the wall between the first floor of the home and the foundation. The walls make the crawl space that is certainly often found underneath a home. Cripple walls are usually only paid by exterior wood siding or stucco, and are considered the weakest part of a building. Bracing the walls with plywood will increase their strength and aid the prevention of the home from swaying during a quake. For more information please visit seismic retrofitting