Characteristics of Restoring Force of High Strength Reinforced Concrete Frame Columns
-
摘要: 为了对在地震作用下的构件受力性能全过程进行动力分析,通过对19根参数不同的剪跨比入=3型钢 高强混凝土框架柱的低周反复加载拟静力试验结果进行分析,运用试验拟合法,模拟了型钢高强混凝土框架柱 的无量纲骨架曲线和无量纲标准滞回环,得出了型钢高强混凝土框架柱的刚度退化规律,建立了型钢高强混凝 土框架柱的恢复力模型.实验结果表明:无量纲骨架曲线可以用4折线表示;无量纲标准滞回环可以用3折线表 示,每循环一周,刚度退化就更严重一些,循环一周后不指向原来卸载点,产生超前指向;从屈服点到极限点之间 的刚度退化随着水平位移绝对值的增加而加大.Abstract: A restoring force model was necessary for dynamic analysis of members under seismic action. In this paper, by analysis of the test results of low cyclic reversed loading experiments conducted on totally 19 steel reinforced high-strength concrete (HSRC) columns with different parameters (the slenderness ratio λ≥3), the dimensionless skeleton curves, dimensionless hysteresis loops, and stiffness degradation rules of the HSRC columns were simulated using the experimental fitting method. Based on these simulations, a restoring force model was established for the HSRC columns. The results show that the dimensionless skeleton curves can be expressed by a four-segment polygonal line; the dimensionless hysteresis loops can be expressed by a three-segment polygonal line; after each cycle, the stiffness degradation become more serious, and the curve returns but overshoots the original unloading point; the stiffness degradation between the yield point and limit point increases with an increase in the absolute horizontal displacement.
-
Key words:
- HSRC frame columns /
- cyclic loading
期刊类型引用(4)
1. 叶启彬,肖泓宇,田晨,刘名,付沄琳,胡苏. 面向无人机的通信感知一体化系统自干扰消除技术. 西南交通大学学报. 2024(04): 925-932 . 本站查看
2. 王豪,董增寿,康琳,王珍妮. 瑞利信道下全双工中继系统性能研究. 太原科技大学学报. 2019(06): 437-441+446 . 百度学术
3. 汪汉新,汪玉明. 多源多中继协同通信的快速中继选择算法. 中南民族大学学报(自然科学版). 2018(01): 80-84 . 百度学术
4. 龙志鹏,余江,常俊. 一种改进的自适应全双工中继系统中继策略. 计算机科学. 2017(09): 110-114 . 百度学术
其他类型引用(6)
-

计量
- 文章访问数: 1272
- HTML全文浏览量: 62
- PDF下载量: 652
- 被引次数: 10