防灾减灾工程学报2023，Vol.43Issue(6)：1200-1214,15.DOI:10.13409/j.cnki.jdpme.20230921001
泸定6.8级地震农村居住建筑震害调查与分析
Seismic Damage Investigation and Analysis of Rural Residential Buildings in Ms6.8 Luding Earthquake
摘要
Abstract
On September 5th,2022,a 6.8 magnitude earthquake hit Luding County in Sichuan prov-ince,causing extensive damage to rural buildings in Luding,Shimian,Hanyuan,and surrounding ar-eas.A detailed seismic damage investigation covering 35 zones in 12 villages and towns was conduct-ed,revealing varying seismic damage across structures with seismic intensities from Ⅵ to Ⅸ.The dis-tinct seismic damage patterns were observed in brick masonry,wood,stone,and raw soil structures.Statistical analysis showed varying damage levels among these types.The investigation and analysis revealed that brick masonry structures had a 4.2%severe damage rate and 3.3%collapse rate,with these outcomes closely linked to constructional practices.Masonry structures lacking adequate aseis-mic design and earthquake-resistant construction measures suffered from roof damage,partial col-lapse,or complete failure.Conversely,those equipped with appropriate measures demonstrated better structural integrity.Wooden structures showed minor damage overall,with significant roof damage due to vertical earthquake forces.Stone masonry and raw soil structures exhibited elevated rates of se-vere damage and collapse,with percentages of 7.2%and 5.1%for serious damage and 10%and 7%for collapse,respectively.Secondary disasters like landslides and rockfalls also contributed to the dam-age,marking a significant aspect of the Luding earthquake's impact.Regarding the damage attributes of the Luding earthquake,it is advisable to integrate earthquake-resistant construction practices and new technologies during the rural residential building construction process.Post-disaster efforts should focus on the combination of the reconstruction and reinforcement,guided by damage assessments,with a focus on rural layout and site selection for future seismic resilience Additionally,educating rural communities and training artisans in earthquake-related knowledge is crucial.关键词
泸定地震/震害调查/农村居住建筑/砖混结构/木结构/石结构/生土结构/次生灾害Key words
Luding earthquake/earthquake damage survey/rural residential buildings/brick and con-crete structures/wooden structures/stone structures/raw soil structures/secondary di-saster分类
建筑与水利引用本文复制引用
潘毅,袁家聪,林拥军,宋杰,朱立新..泸定6.8级地震农村居住建筑震害调查与分析[J].防灾减灾工程学报,2023,43(6):1200-1214,15.基金项目
四川省自然科学基金(2022NSFSC0423,2022NSFSC0430)资助 （2022NSFSC0423,2022NSFSC0430）
