1) backing plate
背垫板
1.
In beam-to-column joint with bolted end-plate connection,the structural details of column flange reinforced by backing plate and column web panel reinforced by supplementary plate are analyzed.
针对需要局部加强的梁柱端板连接节点,考虑了柱翼缘用背垫板加强,节点域柱腹板用补强板加强的构造形式。
2) underlap
针背垫纱
3) backrest cushion; back pad; back cushion
靠背垫
4) underlap timing
针背垫纱定时
补充资料：背对背
背靠背。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。