[1]蔡丽雯,黄勇,张昊宇,等.2021年青海玛多7.4级地震共玉高速震害与启示[J].世界地震工程,2021,(03):046-56.
 CAI Liwen,HUANG Yong,ZHANG Haoyu,et al.Earthquake damage and enlightenment from Gongyu Expressway in 2021 Qinghai Maduo M7.4 earthquake[J].,2021,(03):046-56.
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2021年青海玛多7.4级地震共玉高速震害与启示
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2021年03期
页码:
046-56
栏目:
出版日期:
2021-07-31

文章信息/Info

Title:
Earthquake damage and enlightenment from Gongyu Expressway in 2021 Qinghai Maduo M7.4 earthquake
作者:
蔡丽雯12 黄勇3 张昊宇3 管仲国4
1. 青海省地震局, 西宁 810001;
2. 青海格尔木青藏高原内部地球动力学野外科学观测研究站, 格尔木 816000;
3. 中国地震局工程力学研究所 地震工程与工程振动重点实验室, 哈尔滨 150080;
4. 同济大学 土木工程学院, 上海 200092
Author(s):
CAI Liwen12 HUANG Yong3 ZHANG Haoyu3 GUAN Zhongguo4
1. Seismological Bureau of Qinghai Province, Xining 810001, China;
2. Field Scientific Observation Station for Geodynamics of the Interior of the Qinghai-Tibet Plateau, Golmud 816000, China;
3. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, CEA, Harbin 150080, China;
4. School of Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
青海玛多地震震害调查共玉高速近断层地震强震记录
Keywords:
Qinghai Maduo earthquakefield investigationGongyu Expresswaynear-fault earthquakestrong ground motion
分类号:
TU4P315
摘要:
2021年5月22日青海玛多发生了M7.4级地震,造成了共和至玉树高速公路部分损毁。首先,基于地震现场考察及资料查阅,介绍了该条公路在此次地震中主要的震害类型及总体的震害情况;其次,统计分析了共玉高速上桥梁震害情况与结构形式等的关系。发现此次地震大桥震害远比中小桥要严重,简支空心板梁桥震害要比连续箱梁严重。鉴于此次地震在极震区缺少强震记录,本文提出一种基于衰减关系和台站土层条件的推测地震动简化方法,从地震动特征角度分析玛多地震对共玉高速破坏机理。最后讨论了此次地震对我国高原地区交通结构抗震的经验与启示。
Abstract:
On May 22, 2021, an M7.4 earthquake occurred in Maduo, Qinghai, causing partial damage to the Gonghe-Yushu Expressway. This article first introduced the main types of earthquake damage and the overall damage situation of the highway in the earthquake based on the earthquake site investigation and data review. Then the relationship between the seismic damage of the bridge on the Gongyu Expressway and the structure of the bridge is statistically analyzed. It was found that the earthquake damage of the bridge in this earthquake was far more serious than that of the small and medium-sized bridges, and the earthquake damage of the simply supported hollow slab girder bridge was more serious than that of the continuous box girder. In view of the lack of strong earthquake records in the extreme earthquake zone of this earthquake, this paper proposes a simplified method of inferring ground motion based on attenuation relationship and station soil conditions to analyze the damage mechanism of the Maduo earthquake to Gongyu Expressway from the perspective of ground motion characteristics. Finally, the experience and enlightenment of this earthquake on the seismic resistance of transportation structures in my country’s plateau areas are discussed.

参考文献/References:

[1] http://www.chinanews.com/gn/2021/05-28/9487734.shtml
[2] https://www.360kuai.com/pc/919c6cefb52c13213?cota=3&kuai_so=1&tj_url=so_vip&sign=360_57c3bbd1&refer_scene=so_1
[3] 青海省工程地震研究院. 共和-玉树(结古)公路地震区划及沿线重点桥梁、隧道工程场地地震安全性评价(送审稿)[R]. 2011.6.
[4] 管仲国, 黄勇, 张昊宇, 等. 青海玛多7.4级地震桥梁工程震害特性分析[J]. 世界地震工程. 2021, 37(3):38-45. GUAN Zhongguo, HUANG Yong, ZHANG Haoyu, et al. Damage characteristics and analysis of bridge engineering in M7.4 Qinghai Maduo Earthquake[J]. World Earthquake Engineering. 2021, 37(3):38-45. (in Chinese)
[5] 中国地震局. 震情速递[EB/OL]. https://www.cea.gov.cn/cea/xwzx/zqsd/index.html China Earthquake Administration. Earthquake Express[EB/OL]. (in Chinese)
[6] 陈乐生,庄卫林,赵河清等. 汶川地震公路震害调查-桥梁[M]. 北京:人民交通出版社,2012. CHEN Lesheng, ZHUANG Weilin, ZHAO Heqing, et al. Report on Highways’Damage in the Wenchuan Earthquake-Bridge[M]. Beijing:China Communications Press,2012. (in Chinese)
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备注/Memo

备注/Memo:
收稿日期:2021-06-09;改回日期:2021-06-22。
基金项目:国家重点研发计划项目(2018YFC1504602-04);中国地震局工程力学研究所基本科研业务费专项资助项目(2018QJGJ06);玛多地震科考专项经费
作者简介:蔡丽雯(1989-),女,工程师,本科,主要从事地震危险性分析工作.E-mail:119250055@qq.com
通讯作者:黄勇(1969-),男,副研究员,博士,主要从事桥梁抗震和结构健康监测研究.E-mail:huangyong@iem.ac.cn
更新日期/Last Update: 1900-01-01