Assertion: tower's structure | /r/HasProperty | subjected to the earthquake ground motions
Facets:
Source sentences:
text: So, the motion equation of particles subjected to the earthquake can be expressed as where is the equivalent mass of the particle, is the displacement vector of the particle, is the equivalent external force vector acting on the particle, is the equivalent internal force vector exerted by the elements connected with the particle, is the damping force, and is the earthquake action when structures are subjected to the earthquake ground motions.