• Title/Summary/Keyword: Pushover

Search Result 352, Processing Time 0.017 seconds

Study on the Nonlinear Analysis Model for Seismic Performance Evaluation of School Buildings Retrofitted with Infilled Steel Frame with Brace (철골 끼움가새골조로 보강된 학교건물의 내진성능평가를 위한 비선형 해석 모델에 관한 연구)

  • Yoo, Suk-Hyeong;Ko, Kwan-Wook
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.26 no.4
    • /
    • pp.65-72
    • /
    • 2022
  • Recently, damage to buildings due to earthquakes in Korea occurred mainly in school buildings and Piloti-type multi-family houses, highlighting the need for seismic retrofit for buildings of the same type. In the early days of the seismic retrofit project for school facilities, various patented methods using dampers as a ductile seismic retrofit method were applied without sufficient verification procedures. However, in 「School Facility Seismic Performance Evaluation and Retrofit Manual, 2021」, when the patented method is applied, it must be applied through a separate strict verification procedure, and instead, the strength/stiffness retrofit method was induced as a general method. In practice,when evaluating seismic performance for retrofit by infilled steel frame with brace, the analysis model is constructed by directly connecting only the steel brace to the existing RC member. However, if the frame is removed from the analysis model of the infilled steel frame with brace, the force reduction occurring on the existing RC member near the retrofit is considered to be very large, and this is judged to affect the review of whether to retrofit the foundation or not. Therefore, in this study, preliminary analysis with variables such as whether or not steel frame is taken into account and frame link method for the analysis model of RC school building retrofitted by infilled steel frame with brace and nonlinear analysis for actual 3-story school building was performed, and basic data for rational analysis model setting were presented by comparing preliminary analysis and pushover analysis results for each variable.

South Korean Society and Disciplined Travel Fantasy in the 1960s -Focusing on Kim Chan-Sam's 『世界一周無錢旅行記』(1962) (규율된 여행 판타지의 60년대적 구성 -김찬삼의 『세계일주무전여행기(世界一周無錢旅行記)』(1962)를 중심으로)

  • Lim, Tae-Hun
    • Journal of Popular Narrative
    • /
    • v.25 no.4
    • /
    • pp.289-319
    • /
    • 2019
  • Kim Chan-sam's 『世界一周無錢旅行記』 was released in 1962. This was a time when the general public was strongly restricted from traveling abroad. Most of the people lived in 'domestic'. Low development and political upheaval continued. The readership wanted a fantasy, which came out of a desire to escape from the peninsula. So was to become more popular around the popular characters called 'Kim Chan-sam'. Kim Chan-sam had to be a pushover to the public. This figure had to be secular and de-politicized. Above all, ideological bias had to be removed. The book's imaginary geography is the "world as a non-communist state" with a high purity. The Cold War ideology was prevalent throughout South Korean society. Kim Chan-sam knew exactly what he could and could not tell the South Korean reader. He couldn't tell you the reality of my readers not being able to travel abroad. Not to mention a society locked up 'domestic' on the Korean reality. The study analyzes Kim Chan-sam's storytelling strategy. Looking at the meaning of the travel fantasy,agenre of the 1960s, I would like to ask why travel writing in our time is still bound by its past limitations.