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Simplified inelastic global buckling theory of non-buckling corrugated steel shear walls for seismic energy dissipation

机译：用于地震能量耗散的非屈曲波纹钢剪力墙的简化非弹性全球屈曲理论

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摘要

Non-buckling corrugated steel shear wall was brought forward in this article. In order to achieve full plasticity and stable seismic energy dissipation capacity at drift ratio 1/50, according to its performance objective, simplified inelastic global buckling theory was derived and validated. Firstly, theoretical equations that predict plastic global buckling behavior of corrugated panel were established based on several assumptions for simplification. Galerkin method was used to solve equivalent buckling shear stress approximately. Secondly, sensitivity analysis was conducted, based on which a cost-effective and practical corrugation configuration was proposed and validated by two specimens of corrugated steel shear walls. The test results revealed that proposed theoretical derivations were capable of giving a reasonable estimation of global buckling behavior to a certain degree of accuracy and safety redundancy. Finally, after being validated by the above test results, a numerical model with parameters in a commonly-used range was developed. The proposed theory was further validated based on orthogonal test design method and the most unfavorable condition was considered by fully restraining the horizontal boundary members rather than being regarded as flexible restraint just as observed in the experiments. The results indicated that proposed theory could provide a safe estimation of plastic buckling behavior at drift ratio 1/50 and meet the demands of performance objective proposed for non-buckling corrugated steel shear walls in this paper.
机译：本文提出了非屈曲的瓦楞钢剪切壁。为了实现漂移比为1/50的完全可塑性和稳定的地震能量耗散能力，根据其性能目标，得出和验证了简化的无弹性全球屈曲理论。首先，基于若干假设来建立预测瓦楞纸板塑料全球屈曲行为的理论方程，以简化若干假设。 Galerkin方法用于大约求解等效屈曲剪切应力。其次，通过其提出了一种瓦楞钢剪切墙的两种标本来提出和验证了灵敏度分析。测试结果表明，提出的理论衍生能够合理地估计全球屈曲行为，以一定程度的准确性和安全冗余。最后，在通过上述测试结果验证之后，开发了一种具有共同使用范围中参数的数值模型。基于正交试验设计方法进一步验证了所提出的理论，并且通过完全限制水平边界成员而不是被视为在实验中观察到的灵活约束来考虑最不利的条件。结果表明，提出的理论可以在漂移比1/50处提供塑性屈曲行为的安全估计，并满足本文中的非屈曲波纹钢剪切墙所提出的性能目标的要求。

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