Reliability Evaluation of Current Design Procedures for Steel Buildings Under Seismic Loads

根据统一建筑规范（UBC）和加州结构工程协会（SEAOC）最近推荐的规定，该研究项目将继续进行第二阶段的建筑性能和安全性评估。​研究将集中在风险对结构阻力不确定性的敏感性，特别是非结构部件的贡献；评估现行的代码程序；以及为更符合风险的设计开发替代程序。将研究其他建筑类型，即偏心支撑框架和双框架系统。根据风险研究的结果，我们会仔细研究不同建筑物类型的建筑重量因素，如有需要，我们会推荐更符合不同建筑物类型安全要求的替代建筑重量值。此外，还将制定设计程序，通过限制漂移来提供一定数量的损害控制。在地震行为或代表性建筑类型、包层和非结构要素方面获得的知识将是最积极的。预计结果将对建筑规范的制定产生重要影响。

This research program continues work in a second phase evaluation of the performance and safety of buildings designed according to the recent provisions recommended by the Uniform Building Code (UBC) and the Structural Engineering Association of California (SEAOC). Research will concentrate on sensitivity of risk to uncertainty in structural resistance, in particular the contribution of nonstructural components; appraisal of current code procedures; and development of alternative procedures for more risk consistent design. Additional building types, i.e., eccentric braced frame and dual frame systems, will be studied. Based on the results of the risk study, the Rw factors for different building types will be carefully examined and if needed alternative values of Rw will be commended which are more consistent with safety required for different building types. Also, design procedures will be developed which provide a given amount of damage control through drift limitation. Knowledge to be gained in the seismic behavior or representative building types, cladding, and nonstructural elements to be studied will be most positive. Results are anticipated to have an important impact on building code development.