| 摘要 |
FIELD: construction, road engineering. ^ SUBSTANCE: invention is related to bridge engineering and may be used in design and construction of bridge pillars on foundations of any design. In prefabricated bridge pillar made of blocks that consist of steel-concrete stands joined to each other, which include inner and outer metal pipes, space between which is filled with compacted inert material, preferably concrete, and ends are closed with flanges, besides inner metal pipes and holes in flange joints of stands are arranged with diametre that provides for motion of a person and required mechanisms inside the pipe; stands are combined in block by means of bolt joints via metal connections, blocks are combined to each other in process of pillar installation by flange connections of stands at high-strength bolts. At the same time block may consists of at least one steel-concrete stand. Pillar may be fixed by flange connections of lower block stands to foundation with the help of embedded part or anchor bolts, and also directly to bedrock base via anchors installed in bedrock base. ^ EFFECT: development of prefabricated bridge pillar having, under conditions of existing dynamic loads, in particular seismic ones, high reliability and durability with provision of its material intensity and labour costs reduction in process of pillar erection and operation. ^ 1 cl, 9 dwg |
