| 框支密肋复合板结构恢复力模型研究 |
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| 引用本文： | 丁巍,贾穗子. 框支密肋复合板结构恢复力模型研究[J]. 混凝土与水泥制品, 2020, 0(7): 68-71. DOI: 10.19761/j.1000-4637.2020.07.068.04 |
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| 作者姓名： | 丁巍 贾穗子 |
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| 作者单位： | 中国地质大学(北京)工程技术学院,100083;中国地质大学(北京)工程技术学院,100083 |
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| 基金项目： | 中央高校基本科研业务费专项优秀教师项目;国家自然科学基金 |
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| 摘 要： | 基于4榀不同构造形式的框支密肋复合板结构抗震性能试验结果,运用试验拟合法,得出了无量纲骨架曲线可采用四折线模型表示。同时模拟了结构无量纲标准滞回环,采用三折线理论给出了近屈服点和近极限点标准滞回环中各段刚度退化经验公式,定量分析了结构刚度退化规律,并提出了适于该结构的恢复力模型。
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| 关 键 词： | 框支密肋复合板 标准滞回环 刚度退化 恢复力模型 |
Research on Restoring Force Model of Frame-supported Multi-ribbed Composite Slab Structure |
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| DING Wei,JIA Sui-zi. Research on Restoring Force Model of Frame-supported Multi-ribbed Composite Slab Structure[J]. China Concrete and Cement Products, 2020, 0(7): 68-71. DOI: 10.19761/j.1000-4637.2020.07.068.04 |
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| Authors: | DING Wei JIA Sui-zi |
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| Affiliation: | (School of Engineering and Technology,China University of Geosciences(Beijing),100083) |
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| Abstract: | Based on the seismic performance test of four frame-supported multi-ribbed composite slab structure specimens with different forms,using the experimental fitting method,the dimensionless skeleton curve was represented by four-fold line.Besides,the dimensionless standard hysteresis loops were simulated,and stiffness-degradation empirical expression of each line in standard hysteresis loop at nearly yield and limit point was given by the three-line theory,and stiffness-degradation rule was obtained quantitatively,furthermore,a restoring force model suitable for the structure was put forward. |
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| Keywords: | Frame-supported multi-ribbed composite slab structure Standard hysteresis loop Stiffness degradation Restoring force model |
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