Reliability, performance-based design and code calibration in earthquake engineering

结构性能受到许多变量的影响，这些变量的值并不确定。由于这种随机性，总是存在结构不按预期运行的可能性。基于性能的设计旨在设计一个结构，使不性能的概率，在不同的性能标准，将不超过可容忍的限度，而同时，一些结构属性（如总成本）将被最小化。本提案涉及最终开发用于计算不履约概率和实施基于性能的设计的稳健软件。该建议的目的，特别是在地震工程中的应用和规范化的抗震设计程序的校准。不列颠哥伦比亚省一直在继续开发RELAN和IRELAN软件，这两个软件尚待最后确定，可免费获得。以温哥华市为例，重点介绍抗震规范设计规定的校准。该提案还包括继续与阿根廷罗萨里奥大学应用力学和结构研究所IMAE进行研究合作。这种合作还强调了地震工程中的可靠性和基于性能的设计。

Structural performance is influenced by many variables, the values of which are not known with certainty. Because of this randomness, there always exist the possibility that the structure will not perform as intended. Performance-based design aims at designing a structure so that the probabilities of non-performance, under different performance criteria, will not exceed tolerable limits while, at the same time, some structural attribute (like total cost) will be minimized. This proposal refers to the final development of robust software for calculating probabilities of non-performance and implementing performance-based design. The proposal aims, in particular, at applications in earthquake engineering and to calibration of codified seismic design procedures. The software RELAN and IRELAN, to be finalized, have been in continuous development at the University of British Columbia and are freely available. Calibration of seismic code design provisions will concentrate, as an example, on the case of the city of Vancouver. The proposal also includes continuing research collaboration with IMAE, the Institute of Applied Mechanics and Structures of the University of Rosario, Argentina. This collaboration also emphasizes reliability and performance-based design in earthquake engineering.