Common Techniques Used By Earthquake Retrofit Companies

By Susan Watson


To modify buildings so that they can withstand seismic activities, seismic retrofitting is usually done. There are several techniques that are usually used. The main aim is to make electives more resistant to ground motions and soil failure. Therefore, in case of harsh climatic conditions that may cause motions, the buildings will be safe from damage. There are so many Earthquake Retrofit companies that are coming up. This is because of the high demand especially in areas that are more prone to earth activities. The following are some of the common techniques.

To begin with, the first PRESS approved technique is called external post-tensioning. This is a method that has been applied for many decades since its approval. In case you are wondering, PRESS is research body that has been there for decades, and it operates in Japan and the U. S of A. The scientists spent sleepless nights looking for ways to curb the impact of seismic activities.

Secondly, there is another technique called base isolation. This uses base isolators to collect the structural elements from the building. The collected elements are later used to decouple other structures of the building when the ground is shaking. Hence, the seismic performance of the elective is enhanced because the integrity of the structure is increased. This technology can thus be applied to other structures to make them withstand earth activities.

The third method is by the use of supplementary dampers. These dampers absorb the energy and motion during seismic activities. The absorbed energy is converted to heat. Therefore, the effects are damped into the structures that are attached to the ground rigidly. Nevertheless, when the damping process continues for several years, the building can become weak. All in all, this is also a very effective technique.

TMD is another fundamental technique used by retrofitting companies. Tuned mass-dampers are used in this case. Normally, movable weights that are attached to devices that have spring-like structures in them are used. These are applied in skyscrapers to prevent them from swaying during strong winds. Hence, it is very effective in big cities where there are so many tall buildings.

The fifth technique is known as slosh tank. Here, a large tank, called a sloshing tank, is filled with a low viscous liquid like water. Then, the tank is taken to a part of the structure that there are lateral motions that are significant, like the roof. It thus counters all the dynamic motions that may take place.

The next technique is known as the active control-system. This method is used in buildings that are extremely tall. Usually, most modern buildings are constructed using materials that are light-weight. Hence, during strong winds and earth movements, the structures may start to sway. This method thus makes the buildings stronger.

These and many other techniques are used today to strengthen buildings. Hence, if you happen to live in areas prone to earth movements, soil failure or strong winds, protect your house. You can use the most appropriate method for your structure. The retrofitting company will advise you on the best.




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