1) Continuous beam disconnection
上弦断开
2) top boom
顶弦,上弦
3) top chord
上弦
1.
Planar BSS with top chords of H-section can be made conveniently,and its joints can be connected easily,but the system is sensitive to the imperfection out of plane because the member of H-section has small stiffness out of plane.
H形截面上弦平面张弦梁结构具有制作方便、便于节点连接的优点,但由于H钢截面构件具有平面外刚度较小的特点,对平面外的缺陷非常敏感,在施工过程中若对此没有采取有效措施,结构会发生平面外失稳,以至无法施工。
5) automatically cut at upper limit
上限自动断开
6) on-off
['ɔnɔf,'ɔ:nɔ:f]
接通-断开;上卸扣
补充资料：上弦
见月相。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条