A Simplified Calculation Method For Solving Elasoplastic Displacement Of The Buckling-Restrained Braced Frame Under Severe Earthquakes

HU Bao-lin;YAO Wen-juan;LI Guo-qiang

Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (2) : 144-148.

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (2) : 144-148.
论文

A Simplified Calculation Method For Solving Elasoplastic Displacement Of The Buckling-Restrained Braced Frame Under Severe Earthquakes

  • HU Bao-lin1; YAO Wen-juan1; LI Guo-qiang2
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Abstract

Basing on the buckling-restrained braced frame under severe earthquakes, and from the point of additional effective damping ratio and energy principle, a simplified calculation method to solving elastic-plastic displacement of the buckling-restrained braced frame under severe earthquakes has been systematically analyzed. In this paper, the detailed calculating method and steps are presented. Moreover, the comparing analysis between the calculation result of simplified calculation method and the mean of the results of ten seismic waves’ elastoplastic time-history analysis has been carried out. The outcome shows that the simplified calculation method is an exact and valid method.

Key words

the buckling-restrained braced frame / severe earthquakes / interstorey displacement / simplified calculation method

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HU Bao-lin;YAO Wen-juan;LI Guo-qiang. A Simplified Calculation Method For Solving Elasoplastic Displacement Of The Buckling-Restrained Braced Frame Under Severe Earthquakes[J]. Journal of Vibration and Shock, 2011, 30(2): 144-148
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