Considering soil-structure interaction makes a structure more flexible and thus, increasing the natural period of the structure compared to the corresponding rigidly supported structure. Moreover, considering the SSI effect increases the effective damping ratio of the system. When an earthquake strikes, the intensity of earthquake shaking determines the severity of damage. In turn, the main factors affecting earthquake shaking intensity are earthquake depth, proximity to the fault, the underlying soil, and building characteristics—particularly height.

also these papers will help you:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.mdpi.com/2076-3417/10/23/8357/pdf&ved=2ahUKEwjI_am6uJ31AhVDLqYKHRu2CskQFnoECA4QAQ&usg=AOvVaw2EPNjsFzLzHtuTOCInUnGm

http://koreascience.or.kr/article/JAKO201829562508854.page

Hi, see appended relevant updated materials related to your question.

You have not heard of this possible effect: the transmitting geological structure of seismic energy interacts with the soil, and with the structure of the construction also because of electromagnetic causes. So the important seismic source for catastrophic earthquakes, usually presented in deepest areas than those of sedimentary deposits, will "see" the structure of the construction as a density object close to the density of the geological structure from the seismic focus. On the other hand, due to tectonic stress of permanent tectonic movements, there will be generated electromagnetic fields of tectonic stress, with strong sources in seismic outbreaks. Man-built structures can be influenced by these electromagnetic fields, produced by important tectonic sources and over a long time, especially if they are continuously located on large-scale traffic lights, permanent electrical fields of semaphores producing natural fields upwelling. Buildings also work through their weights, producing own electromagnetic fields due to stress developed in foundations, which propagate in all directions. The seismic phenomenon, being due to a sudden crustal movement, will act by rapidly increasing of tectonic electromagnetic fields, which will be predominantly propagated on the predefined, previous, previous action. Elastic waves, generated by the terrestrial sudden movement in areas close to the seismic outbreak, will specifically track the electrical fields. They will fall the structures located at the corners of the large boulevards, or at their traffic intersections with other secondary streets. It's just an example. Electrical damage to the soil and structures in the range between large earthquakes, the differences that appear between the prestressed and relaxed tectonic structures are worthy of consideration. The elevated blocks of the crystalline basement greatly amplify both the long-term effects of the electromagnetic fields of tectonic stress and those of the elastic oscillations generated by earthquakes. It is just a possible scenario, but once built the new structure, aging phenomena under the effect of electromagnetic fields generated by stress, start. Caution so, at the electrical part of phenomenology. If you know anything about this I want the bibliography. Good luck !

Dear Md Shakhawat Hossain,

You have gotten an excellent response from Valentin Constantin Furnica... That's why I'm very lucky because i do not need to write down professionally in a weaker form like Valentin Constantin Furnica...

The variation (changing) of the electric potential of soil connected to the area under seismic excitation. will cause the changing the structure of the soil, too, before the earthquake. To get good results you have to have good geological knowledge of the seismic area is, why the earthquakes happen, (rest:

Presentation Content of the Hungarian article: ‘A 2019. júliusi nankai földrengés’

you are welcome to the next discussion, too:

https://www.researchgate.net/post/Exists-the-next-situation-when-an-outsider-researcher-who-has-achieved-a-very-encouraging-result-in-earthquake-forecasting-is-not-supported

The east part of Bangladesh is affected more seismically where the area is fragmented with a lot of N-S fractures and the hypocenter of earthquakes is in East India and Myanmar... If you have knowledge in China forecasting Centre they should give a lot of help to you...

Regards,

Laszlo

Чем меньше модуль упругости грунта тем сильнее воздействие на сооружение. Длина волны становиться соизмерима с размерами сооружения.