SU1004518A1

SU1004518A1 - Bridge pier

Info

Publication number: SU1004518A1
Application number: SU813286564A
Authority: SU
Inventors: Константин Семенович Шаблий
Original assignee: Государственный Институт По Изысканиям И Проектированию Мостов "Ленгипротрансмост"
Priority date: 1981-05-04
Filing date: 1981-05-04
Publication date: 1983-03-15

Description

Изобретение относитс к транспортному строительству и может быть использовано в мостостроении при строительстве железнодорожных мостов.The invention relates to transport construction and can be used in bridge construction in the construction of railway bridges.

Известны опоры мостов, включающие тело, имеющее в плане коробчатое сечение fl 3.Known bridge supports, including the body, having in plan a box-section fl 3.

Эти опоры, пустотелые внутри, имеют тот недостаток, что периодический осмотр их внутренних поверхностей во врем эксплуатации моста затруднен и требует больших з атрат,These supports, hollow inside, have the disadvantage that periodically inspecting their internal surfaces during the operation of the bridge is difficult and requires a lot of money,

Наиболее близким к изобретению по технической сущности и достигаемомуThe closest to the invention of the technical essence and the achieved

результату вл етс опора юcтa,включающа тело имеющее в пгане двутавровое сечение 2. ,the result is a yusta support, including a body having an I-beam in section 2,

Однако такие опоры выполн ют монолитными , посколЬ|Ку горизонтальное членение тела опоры вызывает затруднени с объединением блоков по высоте . При этом возникают затруднени и в обеспечении пр молинейности опорыHowever, such supports are made monolithic, because the horizontal division of the support body makes it difficult to combine the blocks in height. At the same time, there are difficulties in ensuring the straightness of the support

по высоте, поск1эльку сборка тела опоры иЭ горизонтально члененных блоков, иэготавливаемлх в одной и той же опалубке , неминуемо приводит к одностороннему накапливанию заводских ДОПУСКОВ . in height, posk1elku assembly of the support body and the horizontally member blocks, and being prepared in the same formwork, inevitably leads to one-sided accumulation of factory TOLERANCES.

Цель изобретени - облегчение мон-, тажа и обеспечение пр молинейности опоры по высоте за счет исключени одностороннего накапливани заводски : допусков.The purpose of the invention is to facilitate the installation of mono, tazha and ensure the straightness of the support in height by eliminating one-sided accumulation of factory-made: tolerances.

Поставленна цель достигаетс тем, что в опоре моста, включающей тело, имеющее в плане двутавровое сечение, тело выполнено по высоте составным из The goal is achieved by the fact that in the bridge support, which includes a body having an I-beam in plan, the body is made in height by a composite of

10 изготовл е№ах в одной и той же опалубке блоков, каждый из которых имеет на верхней грани полок штыри, а на нижней - кососимметричНые им гнезда.10 fabricated in the same formwork of blocks, each of which has pins on the upper edge of the shelves, and skew-symmetric sockets on the lower edge.

При этом опора моста может быть In this case, the bridge support can be

15 снабжена ледорезными блоками, каждый из которых на стороне, обращенной к оси .опоры, выполнен с отсто щими от наружных его граней выступами, наружные грани которых примыкают к внут20 ренним гран м полок соответствующего блока тела опоры.15 is provided with ice-cutting blocks, each of which on the side facing the axis. The supports are made with protrusions spaced from its outer edges, the outer edges of which are adjacent to the inner edges of the shelves of the corresponding block of the support body.

Claims

Figure 1 shows the facade of the support under the superstructure with a ride on top, located on dry land; in Fig.225, the section A-A in Fig.1; on fig.Z - support fysad when its device on a watercourse with ice drift / figure 4 - the same, side view; Fig. 5 shows a section B-B of Fig. 3 (cross-section of the support with 30 Lorezny blocks); figure 6 - support on the river with ice drift under the superstructure with driving low, side view. The body of the bridge support consists of block 1, which has a I-section in plan. Each block on the top face has three or more ulTijpH 2, and one bottom. - the skew-symmetry of the first sockets | 3. When the support on the watercourse is erected with ice drift, ice-cutting blocks 4 are attached to the support body blocks 1 on the lower and upper sides, provided with ridges 5 away from its outer edges, the outer edges 6 of which are attached to the inner edges of the 7 shelves of the corresponding support body block 1. Ice-cutting blocks 4 and blocks 1 are interconnected by means of intermediate elements 8, welded to the embedded parts of blocks 4 and 1. Space 9 ,. formed by the support body and ice-cutting blocks, is filled with concrete. The bridge supports for a span structure with a lower ride have a support consisting of two branches, each of which is composed of dvutavrovyh blocks 1. The presence on the same horizontal surface of the dvuhavrovyh blocks of pins, and on the other gne; provides the need for a coup of each subsequent mounted unit of the support body relative to the previous one 180 ° around the vertical axis of the support. Such a rotation of the blocks by 180 around the vertical axis with an even number of blocks manufactured in the same formwork completely eliminates the support curvature, and with an odd number of blocks, the curvature of the support corresponds to the factory tolerance for the manufacture of a single block. Thus, one-sided accumulation of factory tolerances is eliminated. the support body blocks between each other using ujTbipef and the nests significantly increase the horizontal forces perceived by the support, and the presence of ice-cutting blocks of this structure It also extends the range of application of I-beams, the advantage of which is the absence of hidden surfaces, i.e. improved defect detection. Invention 1. Bridge support, including a body having an I-section in plan, is different so that, in order to facilitate installation and ensure the support’s straightness in height by eliminating one-sided accumulation of factory tolerances, the body is made in a composite part of the fabrication) x in the same og; alubke blocks, each of which has pins on the upper edge of the shelves, and skew-symmetric sockets on the lower edge of the shelves. 2. The support according to claim 1, characterized in that it is provided with ice-cutting blocks, each of which is on the side facing the axis of the support, is made with protrusions spaced from the outer pro edges, the outer edges of which adhere to the inner edge shelves of the corresponding block of the support body. Sources of information taken into account during the examination 1. Kraltsov E.I. and others. Modern concrete bridges. M., Transport, 974, p. 169, fig. 111-33.

2. The same with. 202-206 (prototype).

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