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众所周知,在地震作用下土壤将给予房屋一定量的动能。研究查明,当地震烈度为6度时,地面上的地震能量密度在5.5×10~2-27×10~2J/米~2范围内变化,而且随着地震烈度每增加一度,地震能量密度将增长五倍。考虑到能量的传递是借助于房屋基础底板与土壤的接触面来实现的,因此必须尽可能的加大基础的接触面,以增加其反映的接触面。此外,正如一些文献所指出的那样,地震面波随着深度的增加而逐渐衰减,它对房屋能传递水平地震荷载,房屋所受到的地震作用不仅通过基础的水平面,而且也通过基础的垂直面来传递。因此地震时土壤与房屋的地下部分呈现出十分复杂的相互作用,正因
As we all know, the soil will give the house a certain amount of kinetic energy under the action of the earthquake. The study finds that when the seismic intensity is 6 degrees, the seismic energy density on the ground changes within the range of 5.5×10~2-27×10~2J/m~2, and the seismic energy density increases as the earthquake intensity increases by one degree. Will increase five times. Considering that the transfer of energy is achieved by means of the interface between the floor of the building foundation and the soil, it is necessary to increase the basic contact surface as much as possible to increase the contact surface that it reflects. In addition, as some literature points out, seismic surface waves gradually attenuate with increasing depth. It can transmit horizontal seismic loads to houses and the earthquakes that are affected by buildings do not only pass through the basic level, but also through the underlying vertical plane. To pass. Therefore, during the earthquake, the soil and the underground part of the house presented very complicated interactions.