Sentence examples for mode period from inspiring English sources

However, the base shear obtained from a UHS corresponding to the first mode period needs to be adjusted for higher mode effects.

It is shown that the initial response of the containment vessel depends on both the impulse and the shape of the primary-shock depending on the ratio of the loading period to the breathing mode period.

In the equivalent static load procedures specified in many seismic codes, including the National Building Code of Canada (NBCC), the elastic base shear is obtained from a design response spectrum, using the first mode period of the structure.

Moreover, the response of the structures to forward-directivity motions shows higher scatter than the response to ordinary ground motions when correlated with simple intensity measures such as PGA or spectral acceleration at the first mode period.

Moreover, the stability analysis of the modes on the plot backbone reveal that they may become unstable due to the interaction with the higher modes or bifurcation of a new NNM with a period equal to the integer multiple of the main mode period.

The quantification of drift demands is based on the probability distribution of the maximum story drift over the height, for a given ground motion hazard level, which in this study is represented by the spectral acceleration at the first mode period of the building.

Accurate analytical estimates of non-linear mode periods are formulated for both non-gyroscopic and gyroscopic systems.

To bypass this problem as common intensity measure for both types of frames we used here the spectral acceleration averaged in a period range (AvgSA) that include the first mode periods of both frames.

It should be noted that the modal periods in a nonlinear system are continuously changing, but the so-called higher mode periods start changing while entering the inelastic range.

It is shown that the seismic response of the buildings strongly depends on the ratio of the first-mode period of vibration of the structure to the predominant period of the ground motion (T/Tg).

For the third mode, the period elongated to about 2.3 times that of the elastic period.