Blind Prediction of the Response of the Hualien Model to Forced Vibration Tests

9315680 LUCO这项研究项目是为了验证用于计算重要结构与周围土壤之间发生重大相互作用的重要结构的动力响应的数学模型和计算机代码的迫切需要：在这种情况下，通过对台湾花莲大型核反应堆反应堆安全壳结构在强迫振动试验期间的动力响应进行“盲目”预测。(盲目预测是指在事先不知道结果应该是什么的情况下进行预测。)这些试验是由一个组织联盟进行的，包括电力研究所(EPRI)、核管理委员会以及来自台湾、日本、韩国和法国的机构。这三项任务是：(1)在回填地基周围的土壤之前，将观测数据与早期对围护模型响应的预测进行比较，以检验所采用的计算机程序，并改进结构和土壤的数学模型。(2)对基础周围土体回填后结构在强迫振动试验中的响应进行了盲法预测。(3)将预测与观测值(只有在盲目预测被正确记录后才由EPRI发布)进行比较，以全面评估当前对部分嵌入中等强度土并受外力作用的结构的动力响应进行建模的能力。该项目的资金是核管理委员会和国家科学基金会之间的合作。***

9315680 Luco This research project is in response to a critical need to validate the mathematical models and computer codes that are used to calculate the dynamic response of important structures for those cases in which significant interaction occurs between the structure and the surrounding soil: In this case through the "blind" prediction of the dynamic response of the Hualien, Taiwan, large-scale model nuclear reactor power plant containment structure during forced vibration tests. (A blind prediction is one in which the prediction is made without knowing in advance what the result should be.) These tests are being conducted by a consortium of organizations, including the Electric Power Research Institute (EPRI), the Nuclear Regulatory Commission, and institutions from Taiwan, Japan, Korea and France. The three tasks are: (1) Comparisons of observed data with earlier predictions for the response of the containment model, prior to backfill of the soil surrounding the foundation, are used to test the computer programs employed, and to improve the mathematical models for the structure and the soil. (2) Blind predictions are made for the response of the structure during forced vibration tests, after backfill of the soil surrounding the foundation. (3) The prediction are compared with observations (which are to be released by EPRI only after the blind predictions have been properly recorded) for an overall assessment of the current capability to model the dynamic response of structures partially embedded in medium strength soils and subjected to external forces. Funding for this project is a collaboration between the Nuclear Regulatory Commission and the National Science Foundation. ***