https://www.pinterest.com/pin/493566440396773187/
http://www.structuresjournal.org/article/S2352-0124(16)30009-1/fulltext
https://www.pinterest.com/pin/140596819586832700/
-Hoiting
https://www.pinterest.com/pin/781022760348857015/
https://www.pinterest.com/pin/781022760348857015/
http://imiweb.org/01-030-0502-window-jamb-sill-details/
– Huiyi