【摘要】 随着全球城市化的加速推进，城市地震风险防控需求日益凸显。城市防震减灾的重大需求对以工程结构地震安全为核心目标的传统抗震设计理论提出了严峻挑战。目前，城市抗震韧性设计方法在国内外尚处于空白状态。本文概述了抗震设计理论的发展历程，明确了以工程韧性为根本、以制度韧性和社会经济韧性为保障的“一根本、两保障”城市抗震韧性设计构成要素，提出了确保建筑及土木基础设施抗震安全、满足城市震后预定功能、确保城市能够快速恢复的“三目标”城市抗震韧性设计总要求，构建了包括确定城市抗震韧性目标、建筑及土木基础设施结构地震安全设计、城市工程系统震后功能验算、制定震后城市工程系统功能快速恢复的技术与策略、城市制度和经济社会抗震韧性概念设计的“五环节”城市抗震韧性设计步骤，实现了“建筑及土木基础设施-工程系统-城市系统”在韧性目标、震后功能及恢复过程三方面的协同，建立了城市抗震韧性设计理论与方法，阐明了基于抗震韧性的城市抗震设计与基于性态的结构抗震设计之间的关联，从而为实现城市抗震韧性的总目标奠定了科学与技术的基础。该设计方法为从保障建筑及单体设施结构抗震安全，向保障工程系统和城市系统震后功能及快速恢复的防灾范式转变提供理论和技术支撑，也为地震安全韧性城市的构建提供了可行途径。更多还原

【Abstract】 With the accelerated advancement of global urbanization, the demand for urban earthquake risk prevention and mitigation has become increasingly pronounced. This growing demand poses significant challenges to traditional seismic design theories that focus primarily on the seismic safety of engineering structures. At present, systematic methodologies for resilience-based urban seismic design remain largely undeveloped both domestically and internationally. This paper reviews the evolution of seismic design theory. The fundamental connotation of urban seismic resilience is clarified. A resilience-based urban seismic design framework is proposed. The framework follows the principle of “one foundation and two safeguards.” Engineering resilience serves as the foundation. Institutional resilience and socio-economic resilience provide essential support. Three design objectives are defined. The first objective is to ensure the seismic safety of buildings and civil infrastructure. The second objective is to satisfy prescribed post-earthquake functionality of urban systems. The third objective is to enable rapid post-earthquake recovery. A five-step urban seismic resilience design procedure is established. The first step is the determination of urban seismic resilience targets. The second step is structural seismic safety design of buildings and civil infrastructure. The third step is post-earthquake functionality assessment of urban engineering systems. The fourth step is the development of technologies and strategies for rapid functional recovery. The fifth step is conceptual design of institutional and socio-economic seismic resilience. The proposed procedure enables coordinated design across buildings and civil infrastructure, engineering systems, and urban systems. Coordination is achieved in resilience objectives, post-earthquake functionality, and recovery processes. A theoretical system and methodological framework for resilience-based urban seismic design are established. The relationship between resilience-based seismic design for and performance-based seismic design for structures is clarified. The proposed methodology supports a shift in disaster-prevention practice. The focus moves from structural seismic safety to post-earthquake functionality and rapid recovery at the system and urban levels. This methodology provides theoretical and technical support for earthquake-safe and resilient cities.更多还原