风冲浪波构建脆弱性的方法用于损坏,损失和弹性分析
Trung Q Do1, John W van de Lindt2, Daniel T Cox3
1Postdoctor Fellow, Dept. of Civil and Environmental Engineering, Colorado State Univ., Fort Collins, CO 80523-1372.
Journal of structural engineering (New York, N.Y.)
|December 11, 2023
概括
这项研究引入了一种新的基于物理的模型,用于评估风波和浪潮造成的沿海建筑损坏,改进了目前仅对洪水深度进行的评估,以更好地规划社区的抵御能力.
科学领域:
- 工程 工程师 工程师 工程师
- 沿海工程 沿海工程
- 结构工程 结构工程
背景情况:
- 目前的洪水脆弱性模型往往忽略了波浪和浪潮产生的水力动力学力.
- 对风对沿海结构的影响进行准确的建模对于社区的性至关重要.
研究的目的:
- 开发和验证基于物理学的方法,用于评估风潮和波浪负荷组合下的高海拔沿海建筑物的力量.
- 为代表性住宅建筑的不同损坏状态生成脆弱表面.
- 将新模型的损失估计与现有方法 (如HAZUS-MH) 进行比较.
主要方法:
- 开发了一种方法来计算建筑部件 (窗户,门,墙壁,地板) 受到冲浪和波浪的影响.
- 该模型与缩放结构的实验室测试结果进行了验证.
- 使用显著的波浪高度和冲浪水平作为风强度参数,建模了一个全尺寸的木制房子.
- 为四种损伤状态生成了脆弱性表面,将组件损伤结合起来.
主要成果:
- 拟议的模型准确地评估了在波浪和冲浪条件的组合下对建筑部件的力.
- 对于一个完整的住宅大楼,产生了脆弱表面,代表了各种损坏状态.
- 该研究强调了将波浪高度纳入海岸附近建筑物的损害预测中的重大影响.
结论:
- 开发的基于物理的脆弱性提供了一个更准确的代表风对高的沿海建筑造成的损害.
- 这些脆弱性可以整合到像HAZUS-MH这样的工具中,以改善社区层面的损失和弹性分析.
- 该方法提高了对联合波浪和风暴潮事件的结构反应的理解.
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