Field investigation on severely damaged aseismic buildings in 2014 Ludian earthquake

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• 作者：Xuchuan Lin ; Haoyu Zhang ; Hongfu Chen…
• 关键词：Ludian earthquake ; field investigation ; aseismic buildings ; structural collapse ; local failure
• 刊名：Earthquake Engineering and Engineering Vibration
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：14
• 期：1
• 页码：169-176
• 全文大小：1,523 KB
• 参考文献：1. China Earthquake Administration (CEA) (2014), “Seismic Intensity Map of / M6.5 Ludian Earthquake in Yunnan,-http://www.cea.gov.cn/publish/dizhenj/464/478/20140807085249557322083/index.html, released on August 7, 2014. (in Chinese)
  2. China Earthquake Networks Center (CENC) (2014), http://news.ceic.ac.cn/CC20140803163010.html, -em class="a-plus-plus">M6.5 Earthquake in Ludian County, Zhaotong City, Yunnan Province,-released on August 3, 2014. (in Chinese)
  3. China Strong Motion Networks Center (CSMNC) (2014), -em class="a-plus-plus">M6.5 Ludian Earthquake in Yunnan,-http://222.222.119.9/selnewxjx1.asp?id=820, released on August 4, 2014. (in Chinese)
  4. Chopra AK (1995), / Dynamics of Structures: Theory and Application to Earthquake Engineering, Prentice Hall, Englewood Cliffs, New Jersey.
  5. Institute of Geology (IG), China Earthquake Administration (CEA) (2014), “Analysis on the Fault of / M6.5 Ludian Earthquake in Yunnan,-http://www.eq-igl.ac.cn/wwwroot/c_000000090001/d_1406.html, released on August 6, 2014. (in Chinese)
  6. Ministry of Civil Affairs of the People’s Republic of China (MOCA) (2014), “Death Toll of Yunnan Ludian Earthquake Increased to 617,-http://www.mca.gov.cn/article/zwgk/mzyw/201408/20140800678456.shtml, released on August 8, 2014. (in Chinese)
  7. Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD) (2010), / Code for Seismic Design of Buildings ( / GB50011-2010), China Architecture & Building Press, Beijing. (in Chinese)
  8. Wang Zifa (2008), “A Preliminary Report on the Great Wenchuan Earthquake,- / Earthquake Engineering and Engineering Vibration, 7(2): 225-34. CrossRef
  
• 作者单位：Xuchuan Lin (1) (2) (3)
  Haoyu Zhang (1) (2)
  Hongfu Chen (1) (2)
  Hao Chen (1) (2)
  Junqi Lin (1) (2)
  
  1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080, China
  2. Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin, 150080, China
  3. Institute of Engineering Mechanics, China Earthquake Administration, Sanhe, 065201, China
  
• 刊物类别：Engineering
• 刊物主题：Vibration, Dynamical Systems and Control
  Chinese Library of Science
  
• 出版者：Institute of Engineering Mechanics (IEM), China Earthquake Administration
• ISSN：1993-503X

文摘

The 2014 magnitude 6.5 Ludian earthquake caused a death toll of 617, many landslides and tens of thousands of collapsed buildings. A field investigation to evaluate the damage to buildings was carried out immediately after the occurrence of the earthquake. Severely damaged aseismic buildings, which were basically observed in the downtown of Longtoushan Town, were carefully examined one by one with the aim to improve design codes. This paper summarizes the damage observed to the investigated aseismic buildings in both the structural and local levels. A common failure mode was observed that most of the aseismic buildings, such as RC frame structures and confined masonry structures, were similarly destroyed by severe damage or complete collapse of the first story. The related strong ground motion, which was recorded at the nearby station, had a short duration of less than 20 s but a very large PGA up to 1.0 g. The RC frames based on the new design codes still failed to achieve the design target for “strong column, weak beam- Typical local failure details, which were related to the interaction between RC columns and infill walls and between constructional columns and masonry walls, are summarized with preliminary analyses.