液压青混凝土的混合设计方法,考虑到区域变形特征
Hao Li1, Jianxin He2,3,4, Liang Liu1,5,6
1Geotechnical Engineering, College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi, 830052, China.
Scientific reports
|July 1, 2025
概括
由于区域地震变化,优化水的青混凝土核心 (ACC) 混合比例至关重要. 这项研究为不同的水区域定制了ACC混合设计,以确保结构安全并最大限度地减少地震负载下的沉积.
科学领域:
- 地质技术工程 地质技术工程
- 土木工程 土木工程是指土木工程.
- 工程工程 工程工程
背景情况:
- 地震负荷导致青混凝土核心 (ACC) 应力和变形的区域差异.
- 统一的ACC混合比例对于水建设是不够的,需要以性能为导向的设计.
- 优化ACC混合比例对于提高青混凝土核心 (ACCD) 结构的变形兼容性至关重要.
研究的目的:
- 为了优化ACC混合比例的不同区域分区的ACCD.
- 为了提高ACC核心墙壁的变形适应性,以应对地震活动.
- 通过结构安全分析验证拟议的性能驱动混合设计方法.
主要方法:
- 工程类比方法用于分析核心壁的应力-应变特征.
- 尼亚大核心墙壁的划分,根据变形机制划分为三个不同的区域.
- 优化针对每个已识别的区域量身定制的ACC混合比例.
- 用于结构安全评估的三维有限元素方法 (FEM).
主要成果:
- 优化的ACC混合比例提高了核心墙壁适应大变形的能力.
- FEM分析表明,在设计地震后,核心墙壁的小沉积.
- 核心壁内的压力水平在地震事件后的安全范围内保持.
结论:
- 以性能为导向的,特定于区域的混合比例优化方法对于ACCD构造是可行的.
- 定制的ACC混合设计提高了水安全性和在地震条件下的性能.
- 该研究表明了针对复杂的水结构量身定制的工程方法的潜力.
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