Seismic retrofitting is the process that is used to modify existing buildings to be more resistant to seismic activities. Also, this technique makes the building more resistant to soil failure and ground motion. Therefore, the structures will not be affected in case of any seismic activities. Most people are now demanding for this technique, especially in urban settings. This has led to the establishment of so many earthquake retrofit companies. This is because of the high demand. There are several techniques used for the retrofitting. Some of the most common ones are listed below.
External post-tensioning is the first method. The technique is not new, and people have used it for many years. It has been approved by PRESS, which is a large research joint active in Japan and the United States of America. After many years of research, the scientists were able to come up with several techniques to prevent the impact of seismic activities on buildings. External post-tensioning was one of them.
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.
Another critical technique used is called TMD. This is a technique that employs tuned mass-dampers. Here, movable weights attached to spring-like things are used. These mass dampers are normally used in very tall buildings to reduce the wind sway. Therefore, this technique can also be used in seven to ten several buildings. They thus impart seismic activities in tall buildings located in areas that highly prone to earth movements.
Another technique called slosh tank is used. A large slosh tank is used here. Then, water or another low viscous liquid is used to fill the tank. Then, this tank is taken to the rooftop and placed there. This is because the roof is prone to lateral motions. This tank thus counters the lateral motions that might take place.
Another technique is called the active control system. This is applied in very tall buildings. Usually, modern buildings are built with light-weight materials. Therefore, they might sway during seismic activities or certain wind conditions. This is where this technique is applied to prevent the tall building from swaying.
So many other techniques are used to make buildings stronger to withstand strong winds and earth movements. Hence, people who live in places prone to the seismic activities are advised to apply any of these methods. This will prevent their structures from being damaged. More so, they will avoid incurring losses due to the damages.
External post-tensioning is the first method. The technique is not new, and people have used it for many years. It has been approved by PRESS, which is a large research joint active in Japan and the United States of America. After many years of research, the scientists were able to come up with several techniques to prevent the impact of seismic activities on buildings. External post-tensioning was one of them.
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.
Another critical technique used is called TMD. This is a technique that employs tuned mass-dampers. Here, movable weights attached to spring-like things are used. These mass dampers are normally used in very tall buildings to reduce the wind sway. Therefore, this technique can also be used in seven to ten several buildings. They thus impart seismic activities in tall buildings located in areas that highly prone to earth movements.
Another technique called slosh tank is used. A large slosh tank is used here. Then, water or another low viscous liquid is used to fill the tank. Then, this tank is taken to the rooftop and placed there. This is because the roof is prone to lateral motions. This tank thus counters the lateral motions that might take place.
Another technique is called the active control system. This is applied in very tall buildings. Usually, modern buildings are built with light-weight materials. Therefore, they might sway during seismic activities or certain wind conditions. This is where this technique is applied to prevent the tall building from swaying.
So many other techniques are used to make buildings stronger to withstand strong winds and earth movements. Hence, people who live in places prone to the seismic activities are advised to apply any of these methods. This will prevent their structures from being damaged. More so, they will avoid incurring losses due to the damages.
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