As we all know, after years of use, buildings will always have a certain post-settlement, which often led to uneven settlement of the building collapse, cracking and seriously affect the use.
众所周知，建筑物在经过多年的使用后总会产生一定的沉降，而不均匀沉降往往会导致建筑物塌陷、开裂并严重影响使用。
The most obvious response of building under uneven settlement occurs at the bottom story; and its ability to resist down concave deformation is stronger than that to upper convex deformation.
不均匀沉降作用下建筑物底层反应最明显，且抵抗下凹变形的能力比抵抗上凸变形的强；
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