数据驱动的方法来导出用于预测强化混凝土梁的最终切削强度的方程,而无需冲动
Menghay Phoeuk1, Dong-Yeong Choi1, Suchart Limkatanyu2
1Department of Civil Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea.
Materials (Basel, Switzerland)
|June 13, 2025
概括
钢筋混凝土 (RC) 梁切削强度的新统一方程式提供了准确,一致的评估,没有杆. 这种数据驱动模型简化了工程师的计算,提高了安全性和设计可靠性.
科学领域:
- 结构工程 结构工程
- 材料科学 材料科学 材料科学
- 计算力学 计算力学 计算力学
背景情况:
- 钢筋混凝土 (RC) 梁的剪切故障是脆弱和不可预测的,需要可靠的强度评估.
- 目前的剪切强度计算方法缺乏统一性,导致工程实践中的不一致性.
- 现有的模型往往难以在不同的光束类型和细度比率上广泛适用.
研究的目的:
- 开发一个统一的,简单的,广泛适用的切削强度方程,用于非预应力矩形RC梁没有杆.
- 与现有的代码相比,提高剪强度预测的准确性和一致性.
- 提供一个强大的模型,对广泛的实验数据进行验证.
主要方法:
- 使用数据驱动方法制定,将广泛的实验数据库 (2007年以前) 与先进的计算技术相结合.
- 人工神经网络,生成对抗网络和贝叶斯优化用于模型开发的应用.
- 根据已建立的剪切条款 (ACI 318-25,CSA A23.3-24) 和2007年后的实验数据进行验证.
主要成果:
- 拟议的方程证明了预测准确度的提高以及剪强度评估中的不确定性降低.
- 该模型显示了切削纤维和非切削纤维梁的一致性能.
- 与2007年后数据的验证证实了该方程的稳定性和优越性,与当前的代码条款相比.
结论:
- 统一的剪切强度方程提供了一个更可靠和更一致的方法来评估没有杆的RC梁.
- 数据驱动的方法和先进的计算技术产生了强大而准确的预测模型.
- 这些发现支持在工程实践中可能采用这种方程,以提高结构安全.
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