1.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,黑龙江 哈尔滨150080
2.地震灾害防治应急管理部重点实验室,黑龙江 哈尔滨 150080
3.北京市住房和城乡建设执法总队,北京 100084
陈保健(1998—),女,硕士研究生。主要从事结构抗震方面的研究。E‑mail:Chenbaojian1202@163.com
杜轲(1985—),男,研究员,硕导。主要从事结构抗震方面的研究。E‑mail:duke@iem.ac.cn
收稿:2022-12-09,
修回:2023-02-03,
纸质出版:2024-04-25
移动端阅览
陈保健,杜轲,王飞.钢管混凝土输电塔地震易损性研究[J].防灾减灾工程学报,2024,44(02):381-388.
CHEN Baojian,DU Ke,WANG Fei.Study on Seismic Vulnerability of Concrete‑Filled Steel Tube Transmission Towers[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(02):381-388.
陈保健,杜轲,王飞.钢管混凝土输电塔地震易损性研究[J].防灾减灾工程学报,2024,44(02):381-388. DOI: 10.13409/j.cnki.jdpme.20221209001.
CHEN Baojian,DU Ke,WANG Fei.Study on Seismic Vulnerability of Concrete‑Filled Steel Tube Transmission Towers[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(02):381-388. DOI: 10.13409/j.cnki.jdpme.20221209001.
钢管混凝土输电塔,由于混凝土与钢管相互作用,使得其地震易损性不同于普通混凝土输电塔。为了对比研究它们的地震易损性区别,从材料本构模型层面考虑钢管与核心混凝土的相互作用,使用有限元软件OpenSees建立钢管混凝土输电塔模型,对其进行结构响应分析,并进一步采用增量动力分析方法绘制输电塔在多遇、设防、罕遇和极罕遇地震时的易损性曲线,定量分析出地震的第一周期谱加速度对于钢管混凝土输电塔失效概率的影响,同时与普通输电塔的地震易损性结果进行对比。研究结果表明:钢管混凝土输电塔在多遇、设防、罕遇、极罕遇地震作用下均不易发生严重破坏和倒塌,钢管混凝土输电塔出现倒塌时的
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https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=57720991&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=57720982&type=
9.73666668
3.47133350
多位于1.0
g
~1.4
g
;随着地震强度的增加,钢管混凝土输电塔相较于普通输电塔的抗震性能更差。
The interaction between concrete and steel tubes in concrete-filled steel tube (CFST) transmission towers makes their seismic vulnerability different from that in ordinary concrete transmission towers. To compare and study these differences
the article examined the interaction between steel tubes and core concrete from a material constitutive model perspective. It used finite element software OpenSees to establish a model for the CFST transmission tower and analyzed its structural response. Incremental dynamic analysis was then applied to delineate vulnerability curves under various conditions
including frequent
design basis
rare
and extremely rare earthquakes. Furthermore
the quantitative influence of the first cycle spectral acceleration on the failure probability of CFST transmission towers was assessed. The results of seismic vulnerability were compared with those of ordinary transmission towers. Findings indicated that CFST transmission towers were less vulnerable to severe damage or collapse under the actions of frequent
design basis
rare
and extremely rare earthquakes. The first cycle spectral accelerations were mostly between 1.0
g
~1.4
g
. With the increase in earthquake intensity
the seismic performance of CFST transmission towers became worse than that of ordinary transmission towers.
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