Earthquake Retrofitting and What You Should Know About It
Earthquake retrofitting is known as a expression used in construction engineering meaning to create a standing structure resistant against earthquake and various seismic activities. Earthquake retrofitting, also called seismic retrofitting, is the procedure through which a pre-existing structure is adapted and modified to brace against earthquake tremors, ground vibrations, motion on the soil and earth shifting in case of an earthquake. Previously, before modern seismic codes were introduced in 1960s, buildings were constructed without much attention offered to details like protection against earthquake damage. Recently, with advanced studies of seismic activity and the toll it will take on buildings, necessity for earthquake retrofitting happens to be well known.
It has to be understood that there is absolutely no such thing like a complete earthquake proof structure. With earthquake retrofitting changes can be done around the structure making it more resilient to ground activity and fewer more likely to damage throughout a seismic activity, however. While new buildings right now are developed with detailed plans and elaborate techniques of earthquake retrofitting, a number of the older buildings lack such plans and should be reinforced to prevent problems for people in addition to the building. As reported by experts, almost all the damage caused to buildings during seismic activities is caused by side-to-side shaking for the foundation. This could certainly make the building to slide off its foundation when it is not secured. Or it may even make the foundation to crack and the building to collapse. In either ways, serious damage will be caused to human life and also building, making it uninhabitable.
Earthquake retrofitting is carried out for four basic objectives. The most basic in all objectives is safety in the public. It makes sure the structure do not collapse while it is usually safely exited by way of the residents or the people inside. In the case of a severe seismic activity the dwelling might have to be completely replaced, however. The next objective called structure survivability is to ensure the dwelling will endure the earthquake; however, it might possibly require extensive repairs before it can be used again. Your next objective, structural functionality, is often a top level of earthquake retrofit and often only requires minor repairs like crack repairs etc. Lastly, structure unaffected certainly is the highest higher level of earthquake retrofit which can be put on buildings of great historic, political, cultural or economic value. However, as already mentioned above, no structure will be entirely certain to be damage free.
Earthquake retrofitting is done to make sure that buildings can stand the strain and stress of a seismic activity. The continuous, and quite often violent shaking of ground from side to side can take a lot of toll on buildings. The most common techniques of retrofitting could be to bolt a building to its foundation. Many a times, the connections between the foot of a building to the with foundation is inadequate and has to be reinforced. In this way, the shaking of your foundation will not make the building to slip off or collapse. Another common technique is strengthening the pony walls or cripple walls. Other techniques include external post-tensioning of thestructure and dampers, slosh tanks, active control system and more.
Earthquake retrofitting is solely the business enterprise on the construction engineer. It can be performed by a construction professional and anyone who would like to have their house or commercial buildings retrofitted should investigate the experience and professional conduct of your proper construction company before employing them. To learn more about Los Angeles earthquake retrofitting simply click here.