Usage examples (21)

• The stability of such structures depends on the position of the line of pressure relatively to the intrados and extrados of the arch ring.
• The stability of such structures depends on the position of the line of pressure in relation to the extrados and intrados of the arch ring.
• The concrete arch was placed in sections, from 25 to 50 ft. in length, with a rather wet mixture and a back form on the steep slope of the extrados.
• Infilling the extrados of the vaulting using stabilized cement mortar should also be carried out in such a way as to ensure a correct balance of the post-compression...