对于一个不稳定的世纪,重新思考结构安全
Gang Xu1, Tong Guo1, Ai-Qun Li1
1Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 211189, China.
Fundamental research
|February 6, 2026
概括
结构设计必须超越过时的假设,以应对气候变化. 优先考虑弹性,适应性和可持续性对于未来的基础设施发展和生存至关重要.
科学领域:
- 结构工程 结构工程
- 应对气候变化的适应力
- 基础设施设计 基础设施设计
背景情况:
- 当前的结构设计框架依赖于关于孤立危险,材料降解和通过过度设计预防的过时假设.
- 加速的气候波动,连续的灾难和碳限制使传统方法无法维持.
- 现代基础设施面临着复合风险 (例如,地震-洪水序列,热引起的腐蚀),现有代码无法预测.
研究的目的:
- 倡导从根本上重新定义结构安全.
- 将重点从抵抗转变为弹性,从刚性转变为适应性,从过度转变为可持续性.
- 为了使结构工程与弹性工程,灾害风险降低和适应性基础设施的新兴范式保持一致.
主要方法:
- 在不确定性下强调系统思维,稳定性和长期功能性.
- 整合创新工具,如人工智能驱动的诊断和生命周期建模框架.
- 开发新的材料 (耐用,可修复,低碳) 和可量化的指标 (回收时间,体现碳,残留功能).
主要成果:
- 传统的安全方法通常涉及碳密集型建筑,加剧环境危机.
- 重新思考结构安全与弹性工程和适应性设计原则保持一致.
- 该研究提出了结构安全的新框架,侧重于适应性和可持续性.
结论:
- 结构工程师必须成为适应气候变化的,对社会有反应的基础设施的战略家.
- 下一代结构设计必须确保基础设施提供服务,恢复和再生.
- 需要一个范式的转变,以创建能够承受一个不稳定的世纪的基础设施.
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