ﭘﻞ ﻗﻮﺳﯽ Arch bridge

- ﭘﻠﯽ ﺍﺳﺖ ﮐﻪ ﻋﻨﺎﺻﺮ ﺍﺻﻠﯽ ﺗﺤﺖ ﻓﺸﺎﺭ ﺁﻥ ﻗﻮﺳﯽ ﻣﯽﺑﺎﺷﻨﺪ. - ﭘﻠﯽ ﮐﻪ ﺗﮑﯿﻪﮔﺎﻫﻬﺎی ﺍﺻﻠﯽ ﺁﻥ ﺭﺍ ﭼﻨﺪ ﻃﺎﻕ ﺗﺸﮑﯿﻞ ﻣﯽﺩﻫﺪ.