A number of analytic tools have been applied to or developed for progressive collapse modeling. However, the lack of relevant experimental test data makes it difficult to validate these tools or identify which aspects of the modeling approaches or software formulations may need additional refinement. The cost of full scale testing to validate these analytical tools is extraordinarily expensive due to the physical size of the structures that need to be tested and the range of phenomenology that needs to be investigated. This paper investigates the use of small scale building models, which can be tested in a centrifuge to provide properly scaled gravitational loads, for studying progressive collapse of damaged buildings. For this effort, a reinforced concrete building ( 3-bay x 4-bay, 4-story) was designed, constructed at 1/18th scale and tested in a centrifuge while several ground floor support columns were dynamically removed. The test data, including overall collapse response, were compared with the results of pretest analyses performed using a high fidelity, explicit finite element code. This testing effort was designed to contribute to improved validation of simulation tools for progressive collapse modeling.
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机译：已经应用了许多分析工具或开发用于进行渐进折叠建模。然而，缺乏相关的实验测试数据使得难以验证这些工具或确定建模方法或软件制剂的哪些方面可能需要额外的细化。验证这些分析工具的全规模测试的成本由于需要测试的结构的物理尺寸以及需要调查的现象学范围，这是非常昂贵的。本文调查了使用小规模建筑模型，可以在离心机中进行测试，以提供适当缩放的重力负荷，用于研究损坏的建筑物的逐步崩溃。为此，设计了一种钢筋混凝土建筑（3架X X 4-Bay，4层），以1/18尺寸构造并在离心机中进行测试，同时动态地移除几个地板支撑柱。将包括总体崩溃响应的测试数据与使用高保真，显式有限元代码进行的预测试分析结果进行比较。这种测试旨在为改进渐进折叠建模的仿真工具的验证有助于提高仿真。
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