| 基于IDA的方钢管混凝土框架-SPSW核心筒结构地震易损性研究 |
| |
| 引用本文： | 张淑云,李卓宇,马尤苏夫,郭珊.基于IDA的方钢管混凝土框架-SPSW核心筒结构地震易损性研究[J].世界地震工程,2021,0(1):048-56. |
| |
| 作者姓名： | 张淑云 李卓宇 马尤苏夫 郭珊 |
| |
| 作者单位： | 西安科技大学 建筑与土木工程学院, 陕西 西安 710000 |
| |
| 摘 要： | 为研究方钢管混凝土框架-钢板剪力墙（SPSW）核心筒结构在不同强度地震下破坏概率，使用拉杆模型作为钢板剪力墙等效模型，与已有试验对比验证各参数有效性。以地震动峰值加速度（PGA）作为地震动强度参数，按照场地条件等要求选择11条地震动记录。以结构最大层间位移角作为损伤指标，对一典型方钢管混凝土框架-钢板剪力墙核心筒结构进行增量动力分析（IDA），得到IDA曲线簇。基于增量动力分析进行易损性分析，得到易损性曲线，并计算结构的抗倒塌储备系数。结果表明:8度多遇地震作用下，此结构处于正常使用状态。8度设防地震作用下，处于修复后可使用状态。8度罕遇地震作用下，处于生命安全状态。表明该结构具有良好的抗震性能，满足规范中“小震不坏”、“中震可修”和“大震不倒”的抗震设防目标。该结构抗倒塌储备系数大于规范建议值，具有较好的抗倒塌能力。
|
| 关 键 词： | 方钢管混凝土框架 钢板剪力墙核心筒 增量动力分析 易损性分析 |
Research on seismic vulnerability of concrete-filled rectangular tubular frame-SPSW core tube structure based on IDA method |
| |
| ZHANG Shuyun,LI Zhuoyu,MA Yousufu,GUO Shan.Research on seismic vulnerability of concrete-filled rectangular tubular frame-SPSW core tube structure based on IDA method[J].World Information On Earthquake Engineering,2021,0(1):048-56. |
| |
| Authors: | ZHANG Shuyun LI Zhuoyu MA Yousufu GUO Shan |
| |
| Affiliation: | School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an 710054, China |
| |
| Abstract: | To study the failure probability of concrete-filled rectangular tubular frame-steel plate shear wall core tube structure under the earthquake action of different intensity. Using the strip model as the equivalent model of the steel plate shear wall, the effectiveness of each parameter was verified by the existing experiments. Taking peak ground acceleration (PGA) as the ground motion intensity parameter, 11 seismic records were selected according to the site conditions and other requirements. Using the maximum storey drift angle as the damage index, the IDA curves were obtained based on the incremental dynamic analysis (IDA). By using the incremental dynamic analysis, the vulnerability curve and collapse reserve coefficient were achieved. This study indicates that the structure remains normal working condition under 8 degree frequent earthquake, repairable state under 8 degree design earthquake and life safety state under 8 degree rare earthquake. The structure present good seismic performance, and can satisfy the requirements of "no damage under frequent earthquake", "no unrepairable damage under design-based earthquake",and "no collapse under the rare earthquake". The collapse resistance reserve coefficient of the structure is greater than the recommended value, and the proposed structure has better collapse resistance. |
| |
| Keywords: | concrete-filled square steel tubular frame SPSW core tube incremental dynamic analysis vulnerability analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《世界地震工程》浏览原始摘要信息 |
|
点击此处可从《世界地震工程》下载全文 |
