| 摘要 |
FIELD: road building; barriers of bridges and overhead roads. ^ SUBSTANCE: proposed one-side bridge-guard railing post unit has post of height H with cantilever installed on roadbed on which main beam and longitudinal tie-rod are secured at preset height. Post rests on additional supporting member provided with anchor bolts. Second beam of trough section is secured over main beam at distance (0.43-0.44)H in vertical, and second longitudinal tie-rod is secured on cantilever. Distance from vertical wall of said beam to axis of post is (0.15-0.16)H, and full width of unit is (0.43-0.44)H. Additional trough-section beam of section equal to cross section of beam installed over main beam can be secured on main beam in middle of its width. Height of post is (1.48-1.50)H. ^ EFFECT: improved operating characteristics and reliability of guard railing for roads designed for mixed transport, i.e. cars and trucks. ^ 3 cl, 1 dwg |
