1.中国地震局黄土地震工程重点实验室,甘肃 兰州 73000
2.中国地震局兰州地震研究所,甘肃 兰州 730000
3.甘肃省地震局,甘肃 兰州 730000
刘 琨(1985-),男,助理研究员,博士。主要从事岩土地震工程研究。Email:liukun@gsdzj.gov.cn
收稿:2019-05-21,
修回:2019-09-23,
纸质出版:2020-12-15
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刘琨,李桐林,石玉成等.高昌故城内城墙墙体土遗址动力响应分析[J].防灾减灾工程学报,2020,40(06):1018-1023.
LIU Kun,LI Tonglin,SHI Yucheng,et al.Dynamic Response Analysis of Inner Soil Wall Ruins in Ancient Gaochang City[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(06):1018-1023.
刘琨,李桐林,石玉成等.高昌故城内城墙墙体土遗址动力响应分析[J].防灾减灾工程学报,2020,40(06):1018-1023. DOI: 10.13409/j.cnki.jdpme.2020.06.022.
LIU Kun,LI Tonglin,SHI Yucheng,et al.Dynamic Response Analysis of Inner Soil Wall Ruins in Ancient Gaochang City[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(06):1018-1023. DOI: 10.13409/j.cnki.jdpme.2020.06.022.
对高昌故城内城墙墙体进行现场脉动测试,获取土建筑遗址的频谱特性及其自振频率,分析高昌故城内城墙不同部位速度放大效应,研究其在地震荷载作用下的动力响应特征,明确墙体薄弱部位已有加固措施的防护效果。结果表明:高昌故城内城墙的速度放大倍数约1.5~2倍,与地脉动测试结果大致吻合;内城墙自底部至顶部,速度、位移响应均逐渐增大,二者在墙体凹陷处的表现不同,前者相对降低、后者量值最大;内城墙凹陷及洞穴处加固前后应力分布变化明显,应力集中部位不再处于墙体薄弱部位,墙体加固效果良好。所得结果可为高昌故城墙体抗震加固防护提供参考依据。
Through the in-site pulsation test on the inner wall of ancient Gaochang City, the spectrum characteristics of the earthen architecture sites were measured. The self-vibration frequency was obtained by the spectrum diagram, and the velocity amplification effect at the middle and bottom of the inner wall of ancient Gaochang City was analyzed. Dynamic response analysis under seismic loading was carried out. The results show that the velocity amplification at the middle and bottom of the inner wall of ancient Gaochang City is about 1.5-2, which is roughly consistent with the pulsation test results. From the bottom of the inner wall to the top, the response velocity and corresponding displacement gradually increase. But the velocity decreases in the cavity in the wall while the displacement reaches its maximum at the same site. The distribution of stress changes greatly after the reinforcement treatment of the wall defect, the maximum stress point transfers from the weak part to the top and bottom of the wall, illustrating a good reinforcement effect. Further damage to the cultural relics of the soil sites can be avoided through the reinforcement of the wall. This research provides a reference for the strengthening of ancient Gaochang City.
李最雄 . 丝绸之路古遗址保护 [M]. 北京 : 科学出版社 , 2003 : 21 - 32
Li Z X . Conservation of the ancient sites on the Silk Road [M]. Beijing : Science Press , 2003 : 21 - 32 . (in Chinese)
石玉成 , 王旭东 , 胡明清 , 等 . 西北地区典型土遗址抗震安全性分析 [J]. 世界地震工程 , 2010 , 26 ( 增1 ): 148 - 152 .
Shi Y Ch , Wang X D , Hu M Q , et al . Seismic safety analysis of typical earthen archaeological sites in northwest China [J]. World Earthquake Engineering , 2010 , 26 ( Sup1 ): 148 - 152 . (in Chinese)
石玉成 , 郭青林 , 刘 琨 , 等 . 车辆振动对山丹明长城遗址的影响分析 [J]. 地震工程与工程振动 , 2014 , 34 ( 增1 ): 988 - 993 .
Shi Y Ch , Guo Q L , Liu K , et al . Impacting analysis of vehicle vibration on ancient earthen sites of the Great Wall of Ming Dynasty in Shandan County [J]. Earthquake Engineering and Engineering Dynamics , 2014 , 34 ( Sup 1 ): 988 - 993 . (in Chinese)
胡明清 . 丝绸之路典型土遗址地震破坏机理与抗震安全性研究 [D]. 兰州 : 中国地震局兰州地震研究所 , 2008 .
Hu M Q . The study on earthquake damage mechanism and seismic safety of typical earthen archaeological sites along the Silk Road [D]. Lanzhou : Lanzhou Institute of Seismology , 2008 . (in Chinese)
王晓东 . 古代夯土建筑动力响应及抗震保护 [D]. 兰州 : 兰州大学 , 2011 .
Wang X D . Dynamic response and earthquake-resist conservation of historic rammed earth construction [D]. Lanzhou : Lanzhou University , 2011 . (in Chinese)
谌文武 , 李鹏飞 , 梁 涛 , 等 . 苏巴什东寺佛塔的地震动力响应 .[J]. 西南交通大学学报 , 2011 , 46 ( 3 ): 373 - 378 .
Chen W W , Li P F , Liang T , et al . Dynamic responses of East Temple Pagoda of Subashi Temple under seismic loads [J]. Journal of Southwest Jiaotong University , 2011 , 46 ( 3 ): 373 - 378 . (in Chinese)
郭志谦 , 谌文武 . 单体土遗址地震动力响应分析——以山丹县刘富寨敌台为例 [J]. 地震工程学报 , 2017 , 39 ( 4 ): 609 - 616 .
Guo Zh Q , Chen W W . Dynamic responses of single earthen sites under seismic loads: a case study of the Liufuzhai watchtower in Shandan [J]. China Earthquake Engineering Journal , 2017 , 39 ( 4 ): 609 - 616 . (in Chinese)
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