Advanced Simulation Platforms for Performance Based Engineering

用于基于性能的工程的高级仿真平台

• 批准号: RGPIN-2022-05127
• 负责人: Mercan, Oya
• 金额: $ 3.13万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748873
• 关键词: Advanced; Simulation; Platforms; Performance; Based

Performance Based Engineering (PBE) is a balanced approach to the design of a new building or evaluation of an existing structure that often achieves the best possible balance between construction costs and ultimate performance. Although PBE has progressed successfully in earthquake engineering practice (i.e., Performance Based Earthquake Engineering-PBEE), there are only a limited number of studies for the application of PBE in wind engineering (i.e., Performance Based Wind Engineering-PBWE). From a structural design point of view, the main contribution of PBWE lies in finding a realistic yet more economical design solution that satisfies the requirements at the collapse prevention level by allowing inelastic response of materials. Although there is a large amount of literature related to nonlinear analysis of structures under seismic loading, the same cannot be said regarding the literature on nonlinear analysis under wind loads. As such, a comprehensive research program is proposed here to address these gaps. Composed of four complementary projects, the proposed program aims to improve the available tools for both PBWE and PBEE simultaneously. To do this, we will leverage high performance computational resources where (i) computational fluid dynamics (CDF) simulations with different levels of fidelities will be validated against a comprehensive wind tunnel database and thus advancing the prospects of using CFD tools in structural engineering applications (Project 1, PBWE); (ii) CFD simulations will be coupled with structural dynamics simulations where the realistic wind loading conditions obtained from CFD simulations will be used to analyze the dynamic performance of structures both in linear and nonlinear ranges, and thus addressing the lack of understanding of nonlinear structural behavior under wind loads (Project 2, PBWE); (iii) CFD simulations will be coupled with structural simulations by considering also the fluid structure interaction, and thus providing a clear understanding of the nonlinear structural response under wind loading with flow-induced vibration mechanisms (Project 3, PBWE); (iv) different parallel computing strategies will be used in real-time hardware customization to implement more realistic numerical substructure models for Real-time Hybrid Simulation (RTHS), and thus significantly expanding the application scope of RTHS as a state-of-the-art testing method in PBE (Project 4, PBEE, PBWE). By providing structural engineers with enhanced numerical and experimental tools the proposed research program will efficiently contribute to the design and understanding of next generation structures under different hazard conditions due to seismic and wind events. With the dissemination of the research findings, and through the highly qualified personnel that will be trained, this research program will place Canada in a leading position in the fields of performance-based engineering, structural design, simulation and testing.

基于绩效的工程（PBE）是设计新建筑物或评估现有结构的平衡方法，该方法通常在建筑成本和最终绩效之间实现最佳平衡。尽管PBE在地震工程实践（即基于绩效的地震工程PBEE）方面取得了成功，但对于PBE在风力工程中的应用（即基于性能的Wind Engineering-PBWE），只有有限的研究。从结构设计的角度来看，PBWE的主要贡献在于找到一种现实而又更经济的设计解决方案，该解决方案通过允许材料的无弹性响应来满足预防崩溃水平的需求。尽管与地震载荷下的结构的非线性分析有关，但对于在风荷载下的非线性分析的文献方面也不能说相同。因此，这里提出了一项全面的研究计划来解决这些差距。 该计划由四个补充项目组成，旨在同时改善PBWE和PBEE的可用工具。为此，我们将利用高性能计算资源，即（i）具有不同水平的忠诚度的计算流体动力学（CDF）模拟，将对全面的风隧道数据库进行验证，从而促进在结构工程应用中使用CFD工具的前景（项目1，PBWE）； （ii）CFD模拟将与结构动力学模拟结合使用，其中将使用CFD模拟获得的现实风负载条件来分析线性和非线性范围内结构的动态性能，从而解决了在风载量下对非线性结构行为的不了解（Project 2，PBWE）； （iii）CFD模拟将通过还考虑流体结构相互作用，从而与结构模拟相结合，从而清楚地理解了在风载下具有流动诱导的振动机制（Project 3，PBWE）的非线性结构响应； （iv）将在实时硬件自定义中使用不同的并行计算策略，以实现实时混合模拟（RTHS）的更现实的数值子结构模型，从而大大扩展了RTH的应用程序范围作为PBE中最先进的测试方法（项目4，Project 4，PBEE，PBWE）。通过向结构工程师提供增强的数值和实验工具，提出的研究计划将有效地有助于在不同危险条件下由于地震和风事件在不同危险条件下对下一代结构的设计和理解。随着研究结果的传播以及将经过培训的高素质人员，该研究计划将加拿大在基于绩效的工程，结构设计，仿真和测试领域处于领先地位。