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首页> 外文会议>Third International Conference on Earthquake Resistant Engineering Structures ERES Ⅲ, 3rd, Sep, 2001, Malaga >A comparison of nonlinear models for reinforced concrete frames
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A comparison of nonlinear models for reinforced concrete frames

机译：钢筋混凝土框架非线性模型的比较

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摘要

Much of the work conducted in the past to predict building damage during earthquakes, had relied on the consideration of simple inelastic one-degree-of-freedom systems to predict the nonlinear response of actual structures. A number of different nonlinear formulations for complete plane frames have been available since the 1960's, but, unfortunately, they have not been thoroughly validated comparing their predictions with experimental data. In this paper, several nonlinear analysis models for frames are reviewed. Two computer programs for nonlinear dynamic analysis of plane frames, DRAIN-2DX and IDARC2D, are used to predict the response of a frame building. Their predictions are compared among themselves, to those of a fiber model implemented by the authors, and to reported experimental data. The paper provides an indication of the degree of accuracy that can be expected from the use of available versions of some nonlinear analysis programs and points out some of the difficulties and needs in predicting accurately nonlinear structural response to earthquakes.
机译：过去在预测地震中的建筑物损坏方面所做的许多工作都依赖于考虑简单的非弹性单自由度系统来预测实际结构的非线性响应。自1960年代以来，已经出现了许多用于完整平面框架的不同非线性公式，但是不幸的是，尚未将它们的预测与实验数据进行比较来对它们进行彻底的验证。本文综述了几种框架非线性分析模型。两个用于平面框架非线性动态分析的计算机程序DRAIN-2DX和IDARC2D用于预测框架的响应。他们的预测与作者实施的纤维模型的预测进行了比较，并与实验数据进行了比较。本文提供了使用某些非线性分析程序的可用版本可以预期的准确度的指示，并指出了准确预测地震的非线性结构响应时的一些困难和需求。

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