给出了建议并涵盖了三个受振动者:a）建筑物和人行天桥上的人类居住，b）建筑物的内容，c）建筑物的结构。适用于建筑物内或连接建筑物的建筑物、人行天桥和人行道。

Gives recommendations and covers three recipients of vibrations: a) human occupancy in buildings and on pedestrian bridges, b) the contents of the building, c) the structure of the building. Applies to buildings, pedestrian bridges and walkways found within buildings or connecting them.