使用新的塑性变形 (PD) 方法对RCC和复合建筑进行比较分析
Zhang Qing Qing1, Zhang Li Na2
1Department of Jianghe, Architecture College University, Northeastern University, Shenyang, 110819, China. qqzhang99@outlook.com.
Scientific reports
|March 7, 2024
概括
本研究使用塑性变形 (PD) 方法比较钢筋水泥混凝土 (RCC) 和复合建筑. 与传统的RCC建筑相比,复合结构在地震负载下表现出优越的耐用性和性能.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 材料科学 材料科学 材料科学
背景情况:
- 使用动态或静态方法模拟多层建筑物,由于计算效率低下和非线性行为,会带来挑战.
- 现有的方法很难准确地捕捉地震事件下的结构的复杂反应.
研究的目的:
- 在常见和罕见的地震负荷下对多层钢筋水泥混凝土 (RCC) 和复合建筑进行比较分析.
- 评估基于混凝土可塑性理论 (CPT) 的新型塑性变形 (PD) 方法的有效性,用于地震分析.
主要方法:
- 使用ABAQUS软件开发了一个15层建筑模型.
- 塑性变形 (PD) 分析是在模拟常见和罕见的地震下进行的.
- 进行了非线性时间历史分析,以评估各种结构性反应.
主要成果:
- 与RCC模型 (5.2s) 相比,复合模型表现出较长的基本时间周期 (6s).
- 在地震负荷下,RCC建筑的峰值加速率高于复合建筑的峰值加速率 (19-22%以上).
- 复合建筑物在地震负荷下经历的顶部偏移比RCC建筑物更大 (33-36%以上).
结论:
- 塑性变形 (PD) 方法在动态负荷下对RCC和复合建筑进行分析是有效的.
- 复合结构被发现在地震条件下比RCC结构更耐用和更有弹性.
- 在RCC建筑物中,高峰地面加速与更大的位移,漂移,剪切力和顶部偏移有关.
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