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Earthquake And Earthquake Engineering

explanatory Essay
833 words
833 words
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Earthquake and Geotechnical Engineering Earthquake Engineering is a branch of Civil Engineering that is in charge of protecting the society from natural disasters like Earthquakes. This branch of Civil Engineering mainly studies how structures behave when they are hit by a seismic wave. Earthquake engineers main responsibilities are to design structures that can stand an earthquake and to make sure that all structures have the required building codes. In addition, they need to estimate the probable damages to structures after an earthquake. Many lives were lost because of collapsing structures during an earthquake. As mentioned in class an earthquake will never kill anybody but the results of an earthquake are what kill people. In 1909, more than 100,000 people died in Italy after an earthquake because of the poor unprepared structures. Sometimes people may not get hurt because of the land shaking but from landslides or tsunamis that happen after an earthquake. Safe structures are the structures that do not endanger the lives of people inside or around it by collapsing completely or partially after or during an earthquake. Critical structures such as hospitals, nuclear power plants, schools and dams not only are built to survive an earthquake but also to remain in operation. Extra money is always spent when building those structures to ensure that they will survive an earthquake. Engineers set up all building codes based on accurate calculations that are based on theories and actual observations known as seismic assessment. . There are two different types of seismic performance assessments, experimental assessment and numerical assessment. Experimental assessments are very expensive since engineers need to build a scaled m... ... middle of paper ... ...nical Engineers study soils and rocks to make sure or investigate if a surface or a subsurface is appropriate to build a structure on or in it. One major thing that Geotechnical Engineers do is double-checking the placement of the foundations and if the soil under it could handle the amount of stress put. If soil assessment indicated something wrong with soil properties, it may be fixed through ground improvements like treating the soil mass. These processes helped in saving alot of money and time and it made buildings last longer. Soil mechanics studies are the most related studies in Geotechnical Engineering to geology. It is analyzing the site conditions and the soil properties. Many soil properties need to be checked like the Atterberg Limits, which is the shrinkage limit. This indicates how much would the soil shrink because of weather and water limits.

In this essay, the author

  • Explains earthquake engineering is a branch of civil engineering that is in charge of protecting the society from natural disasters like earthquakes.
  • Explains that many lives were lost because of collapsing structures during an earthquake. in 1909, more than 100,000 people died in italy after the poor unprepared structures.
  • Explains that safe structures are those that do not endanger the lives of people inside or around them by collapsing completely or partially after or during an earthquake. critical structures such as hospitals, nuclear power plants, schools and dams are built to survive and remain in operation.
  • Explains that engineers set up building codes based on accurate calculations, known as seismic assessment. experimental assessments are expensive since engineers need to build a scaled model of the actual structure.
  • Explains that building codes are different in each country based on weather, geological history, and the geography of the country. japan's earthquake-resistant buildings are built on plates and springs that absorb the energy released during an earthquake.
  • Explains that architects and engineers believed that skyscrapers that are shaped like a pyramid are more resistant to earthquakes and winds.
  • Explains that some types of buildings are considered earthquake resistant structures. adobe structures are mainly made of mud bricks and mortar.
  • Explains that engineers are required to do an earthquake loss estimation, which is called a damage ratio. an engineer could never have an accurate evaluation of the damage.
  • Explains that geotechnical engineering is a branch of civil engineering that studies soils, rocks, and all earth materials.
  • Explains that soil mechanics studies are the most related studies in geotechnical engineering to geology.
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