31414813ribsPT2026-03-30 20:51:37UF31414814nervuresNDUF31414815ribNDUF31414816ribs, vaultNDUF31414817vault ribNDUF31414818vault ribsNDUF31414819vaulting ribsNDBT31378418arch, dome or vault componentsPTNT31440321diagonal ribsPTNT31440330ridge ribsPTNT31440334flying ribsPTNT31440337liernesPTNT31440343tierceronsPTNT31440350transverse ribsPTNT31440358wall ribsPT