Vulnerability analysis of a complex super high-rise connected structure under the combined action of earthquake and wind
To explore the design and safety performance of super high-rise connected structures under the combined action of multiple disasters,taking Suzhou Supertall as an example,a vulnerability analysis is conducted under the combined earthquake-wind actions.First,the structure's finite element model is established.Then,vulnerability assessments are conducted under individual earthquake and combined earthquake-wind actions.Finally,the response law of the structure is obtained.Results indicate that when exposed to combined earthquake-wind actions,the structure's vulnerability increases with the earthquake and wind intensities,and the seismic action dominates structural damage.The probabilities of moderate,severe,and collapse damages are higher under the combined earthquake-wind actions than those under individual earthquakes.When the wind speed reaches 40 m/s,the probabilities of the structure reaching three failure states under rare earthquakes are 99.77％,91.56％,and 46.54％,respectively,representing an increase of 1.11％,10.73％and 14.65％compared with those under rare earthquakes alone and an increase of 0.27％,6.26％and 14.34％compared with those of a typical high-rise connected structure under the same combined action of disasters.
super high-riseconnected structuremulti-hazardvulnerabilityearthquakewind loadcombined actionSuzhou Supertall
鲁正、严德裕、周梦瑶、赵昕、赵一青
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同济大学结构防灾减灾工程系,上海 200092
同济大学土木工程防灾减灾全国重点实验室,上海 200092
同济大学建筑设计研究院(集团)有限公司,上海 200092
中海企业发展集团有限公司,深圳 518048
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超高层 连体结构 多灾害 易损性 地震 风荷载 耦合作用 苏州超塔
National Key Research and Development Program of China
万方数据
维普
