钢管混凝土输电塔地震易损性研究
TU392.3%TU312; 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Sa(T1...
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| Published in | 防灾减灾工程学报 Vol. 44; no. 2; pp. 381 - 425 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
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
01.04.2024
地震灾害防治应急管理部重点实验室,黑龙江 哈尔滨 150080%北京市住房和城乡建设执法总队,北京 100084 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1672-2132 |
| DOI | 10.13409/j.cnki.jdpme.20221209001 |
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| Abstract | TU392.3%TU312; 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Sa(T1)多位于1.0g～1.4g;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. |
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| AbstractList | TU392.3%TU312; 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Sa(T1)多位于1.0g～1.4g;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. |
| Abstract_FL | The interaction between concrete and steel tubes in concrete-filled steel tube(CFST)trans-mission 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 condi-tions,including frequent,design basis,rare,and extremely rare earthquakes.Furthermore,the quan-titative 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 trans-mission 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 1.0g～1.4g.With the increase in earthquake intensity,the seismic performance of CFST transmission towers became worse than that of ordinary transmission towers. |
| Author | 王飞 陈保健 杜轲 |
| AuthorAffiliation | 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;地震灾害防治应急管理部重点实验室,黑龙江 哈尔滨 150080%北京市住房和城乡建设执法总队,北京 100084 |
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| Author_FL | CHEN Baojian WANG Fei DU Ke |
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| Author_xml | – sequence: 1 fullname: 陈保健 – sequence: 2 fullname: 杜轲 – sequence: 3 fullname: 王飞 |
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| DOI | 10.13409/j.cnki.jdpme.20221209001 |
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| DocumentTitle_FL | Study on Seismic Vulnerability of Concrete-Filled Steel Tube Transmission Towers |
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| Keywords | vulnerability analysis 钢管混凝土输电塔 抗震性能 concrete-filled steel tube transmission tower structural response analysis IDA seismic performance incremental dynamic analysis 易损性分析 结构响应分析 OpenSees |
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| PublicationTitle | 防灾减灾工程学报 |
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| Publisher | 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 地震灾害防治应急管理部重点实验室,黑龙江 哈尔滨 150080%北京市住房和城乡建设执法总队,北京 100084 |
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| Title | 钢管混凝土输电塔地震易损性研究 |
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