This paper shows a new method of the double integral with Wavelet Transformation to compute the response displacement of the building from the measured acceleration. This method provides the performance curve of the building that suffered an earthquake and enables us to judge the damage of the building quickly after the earthquake. We discussed the usefulness of this new method through the past experimental data of the shaking table test of R/C columns in this paper.

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This paper shows a new method of the double integral with Wavelet Transformation to compute the capacity curve of Multi-degree of freedom system. The response displacement of the building is derived from the measured acceleration. It enables us to judge the damage of the building quickly soon after the earthquake. The validity of the method is also discussed through the past shaking test of R/C structure.