架
カ, か.ける, か.かる
erect, frame, mount, support, shelf, construct
JLPT1 G7 S9 F1555
As per
加
# (place atop) +
木
tree/wood → wooden framework atop which something is constructed → *put on*; *build* → *span*; *bridge girder*.
[Full Kanji Etymology List]