The frequency content of transient tilt, acceleration, dynamic thrust, and bending strain measured on the structure was strongly influenced by that of the base motion and site response, but was unaffected by the fundamental frequency of the buried structure (fstructure).
The relationship between DNL, the level of ground motion, and site conditions is shown in Fig. 3.
Although rotational seismology has progressed in recent decades, the links between rotational ground motion and site soil conditions are poorly documented.
Strong ground motions from the Mw 7.8 Gorkha earthquake and its eight aftershocks recorded by a strong-motion seismograph at the KATNP site were analyzed to understand the characteristics of strong ground motions and site effects.
Fig. 3 Relationship between DNL, ground motion level, and site classification.
To understand the site characteristics, such as the predominant period of the ground motion and the site amplification, the horizontal-to-vertical (H/V) spectral ratios for the S-waves and S-wave coda were analyzed.
The effect of alteration in both substrate and protein structure is under investigation, with the goal of understanding the effect of changes in protein motion and active site geometry on tunneling.
Strong ground motions from the 2015 Mw 7.8 Gorkha, Nepal, earthquake and its eight aftershocks recorded by a strong-motion seismograph at Kantipath (KATNP), Kathmandu, were analyzed to assess the ground-motion characteristics and site effects at this location.
Ground-motion data and site information were obtained from the KiK-net at http://www.kyoshin.bosai.go.jp/, the NIED strong-motion seismograph networks, last accessed May 1 , 2016
In addition, site amplifications in the Kyushu region are also estimated to quantify impedance effect, while seismic waves traverse soil layers near the surface, which is necessary for ground-motion simulations and site classification.
Using the calibrated FE model, stochastic seismic analysis of the CFST arch bridge is conducted in a comprehensive and systematic way, by considering the dimensionality, incoherence effect, wave-path effect of ground motions, and local site effects with different and irregular site conditions.
