There are 2 rail dual beam bridge, for pad beam pad on each node truss should get off track, on the edge of the I-beam to pad.

双梁桥架上有2根轨道，用于桁梁应垫梁应垫在各节点处，下车轨道边上的工字钢也要垫好。

The structural column is mainly used for earthquake-resisting in brick construction building and now has used for load bearing and beam pad.

构造柱不仅在砖混结构房屋中主要起抗震作用，而用还具有承重柱及代梁垫的作用。

The problems are pad setting problems. The beam pad has a compression stress for masonry. And for different materials masonry different limited values are put forward.

阐述了梁垫对砌体还起着一个压应力图形完整系数式影响系数的作用，对不同材料的砌体还提出相对应的限值要求。