SU1242553A1

SU1242553A1 - Bridge pier

Info

Publication number: SU1242553A1
Application number: SU853864416A
Authority: SU
Inventors: Борис Алексеевич Мищенко; Григорий Матвеевич Яновский; Юрий Васильевич Романцов; Петр Лаврентьевич Чехомов; Владимир Михайлович Рогожин; Татьяна Михайловна Карюк
Original assignee: Государственный Институт По Проектированию Дорожно-Транспортных Сооружений
Priority date: 1985-01-11
Filing date: 1985-01-11
Publication date: 1986-07-07

Description

Изобретение относится к области мостостроения и может быть использовано в конструкциях устоев обсыпного типа.The invention relates to the field of bridge construction and can be used in the construction of abutments of bulk type.

Цель изобретения - упрощение конструкции, снижение трудоемкости монтажа и повышение несущей способности устоя.The purpose of the invention is to simplify the design, reduce the complexity of installation and increase the bearing capacity of the abutment.

На фиг. I изображен устой, продольный разрез'; на фиг. 2 - то же, вид со стороны моста;' на фиг. 3 монтаж дополнительных опорных плитных элементов; на фиг. 4 - то же, основных плитных элементов.In FIG. I shows the abutment, longitudinal section '; in FIG. 2 - same, view from the side of the bridge; ' in FIG. 3 installation of additional supporting plate elements; in FIG. 4 - the same, basic plate elements.

Устой моста содержит пару основных опорных плитных элементов 1, размещенных в теле головной части насыпи 2 симметрично относительно продольной оси моста, и укрепленный на них лежень 3 со шкафной стенкой 4, выполненной с ним за одно целое.The bridge abutment contains a pair of main supporting slab elements 1 located in the body of the head part of the embankment 2 symmetrically with respect to the longitudinal axis of the bridge, and a base 3 mounted thereon with a cupboard wall 4 made in one piece with it.

Лежень 3 укреплен на опорных плитных элементах 1 с возможностью угловых перемещений их в поперечной плоскости моста, что может быть обеспечено, например, выступами 5, выполненными на нижней поверхности лежня 3, и упиранием в них верхних граней плитных элементов 1. При.этом плитные элементы 1 размещены под углом к вертикальной продольной плоскости симметрии моста с расстоянием между ними поверху, превышающим расстояние между ними понизу.Lezhen 3 is mounted on supporting plate elements 1 with the possibility of their angular displacements in the transverse plane of the bridge, which can be provided, for example, by protrusions 5 made on the lower surface of the bed 3, and abutting the upper faces of the plate elements 1. In this case, the plate elements 1 are placed at an angle to the vertical longitudinal plane of symmetry of the bridge with a distance between them on top, exceeding the distance between them at the bottom.

I .........I .........

Устой может быть снабжен парой дополнительных опорных плитных элементов 6, расположенных в теле головной части насыпи под основными плитными элементами 1 и шарнирно сочлененных с ними посредством выступов 7, выполненных на верхних концевых участках дополнительных элементов (>, и удирания в них нижних концевых участков основных элементов 1. Дополнительные элементы 6 расположены под углом к вертикальной продольной плоскости симметрии моста с 5 расстоянием между ними понизу, превышающим расстояние между ними поверху. Основные и дополнительные плитные элементы 1 и 6 целесообразно разместить под углом 15-25° к вертикальной плоскости, а минимальное расстояние между сближенными концевыми нижними участками основных элементов и верхними дополнительных должно несколько превьяпать ширину *5 монтажного оборудования 8 для уплотнения грунта.The abutment can be provided with a pair of additional supporting plate elements 6 located in the body of the head of the embankment under the main plate elements 1 and articulated with them by protrusions 7, made at the upper end sections of the additional elements (>, and removing the lower end sections of the main elements in them 1. Additional elements 6 are located at an angle to the vertical longitudinal plane of symmetry of the bridge with 5 distance between them at the bottom, exceeding the distance between them on top. It is advisable to place the slab elements 1 and 6 at an angle of 15-25 ° to the vertical plane, and the minimum distance between the adjacent lower end sections of the main elements and the upper additional ones should slightly exceed the width * 5 of the mounting equipment 8 for soil compaction.

Монтаж устоя осуществляется в следующей последовательности.Installation of the foundation is carried out in the following sequence.

Первоначально отсыпают с после2® дующей утрамбовкой нижний слой насыпи на соответствующую высоту, затем на требуемый угол 15-25° устанавливают дополнительные плитные эле-+ менты 6, фиксируя их положение монтажной траверсой 9, которая может быть выполнена П-образной формы для обеспечения возможности прохождения оборудования 7 под траверсой. По высоте элементов 6 грунт отсыпают до 30 определенного уровня, обеспечивающего устойчивость дополнительных плитных элементов 6 без траверсы 9.Initially, the lower layer of the embankment is poured with a subsequent tamping pad to the appropriate height, then additional plate elements + + 6 are installed at the required angle of 15-25 °, fixing their position with a mounting traverse 9, which can be made U-shaped to allow passage equipment 7 under the traverse. According to the height of the elements 6, the soil is poured up to 30 of a certain level, which ensures the stability of additional plate elements 6 without the beam 9.

Поспе снятия траверсы 9 насыпь формируют до высоты концевых участков плитных элементов 6, устанавливают на них основные плитные элементы 1 и, упирая их нижние концы и выступы. 7, располагают их под углом,и ⁴⁰ Фиксируют положение соответствующей траверсой 9. Затем аналогичным образом (формируют насыпь до уровня пежня 3.After removing the traverse 9, the embankment is formed to the height of the end sections of the plate elements 6, the main plate elements 1 are installed on them, and their lower ends and protrusions are abutted. 7, they are positioned at an angle, and ^{40 The} position is fixed with the corresponding traverse 9. Then, in a similar way (an embankment is formed to the level of snow grove 3.

На размещенные в теле насыпи опорные плитные элементы устанавливают лежень 3, вдавливая выступы 6 в грунт и охватывая ими концевые участки элементов 1 путем нагружения лежня с усилием, несколько большим расчетной нагрузки устоя.On the supporting plate elements located in the body of the embankment, a bed 3 is installed, pressing the protrusions 6 into the ground and covering the end sections of the elements 1 by loading the bed with an effort slightly greater than the design load of the abutment.

При эксплуатации моста нагрузки от пролета передаются через лежень на грунт и опорные плитные элементы, которые под действием нагрузки и раз-’ мещения их под углом включают в работу в поперечном направлении грунт, охватываемый плитными элементами, что повышает несущую способность устоя. Дополнительные плитные элемен· ты обеспечивают передачу нагрузок на большую площадь грунта и включение 5 в работу большего его объема.During operation of the bridge, span loads are transmitted through the bed to the ground and to the supporting slab elements, which, under the influence of the load and placing them at an angle, include the soil covered by the slab elements in the transverse direction, which increases the bearing capacity of the abutment. Additional plate elements · you provide the transfer of loads to a large area of soil and the inclusion of 5 in the work of a larger volume.

Опорные плитные элементы просты в изготовлении, так как не требуют специальной технологической оснастки, монтаж их нетрудоемок, а за счет 10 передачи нагрузок на грунт как в вертикальном, так и в поперечном направлении, позволяют улучшить уплотнение грунта под лежнем и повысить несущую способность устоя.Base plate elements are simple to manufacture, since they do not require special technological equipment, their installation is not difficult, and due to 10 transfer of loads to the soil both in the vertical and transverse directions, they can improve soil compaction under the bed and increase the bearing capacity of the abutment.

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Claims

one

2, the abutment of a bridge according to claim 1, characterized in that 5 it is provided with a pair of additional supporting plate elements located in the body of the embankment head part under the main elements and hingedly combined with them, with

The invention relates to the field of bridge building and can be used in the construction of abutment abutments.

The purpose of the invention is to simplify the design, reduce the complexity of installation and the carrying capacity of the UST.

FIG. 1 shows a longitudinal section; in fig. 2 - the same view from the side of the bridge; in fig. 3 shows the installation of additional support plate elements in FIG. 4 - the same, the main plate elements.

The abutment of the bridge contains a pair of basic support plate elements 1, located in the body of the head part of the bridge 2, symmetrically relative to the longitudinal axis of the bridge, and the level 3 fixed on them with the cabinet wall 4, made with it in one piece.

Lent 3 is fixed on supporting plate elements 1 with the possibility of their angular displacements in the transverse plane of the bridge, which can be ensured, for example, by protrusions 5 made on the lower surface of the lying 3 and abutting the upper face of the plate elements 1. At. This plate elements 1 are placed at an angle to the vertical longitudinal plane of symmetry of the bridge with the distance between them on top, exceeding the distance between them lower

I; ;

The abutment can be provided with a pair of additional supporting plate elements 6, located in the body of the head of the embankment under the main plate elements 1 and the projections 7 articulated with them by means of protrusions made on the upper end parts of the additional elements 6, and abutting the lower end plate elements in them are located angle to the vertical longitudinal plane of symmetry of the bridge with the distance between them lower, exceeding the distance between the additional plate elements, verification.

The main sections of the main elements 1. Additional elements 6 are located at an angle to the vertical longitudinal plane of symmetry of the bridge with a distance between them lower, exceeding the distance between them on top. The main and additional slab, elements 1 and 6 should be placed at an angle of 15-25 to the vertical plane, and the minimum distance between the close end parts of the main elements and the upper ones should be slightly greater than the width

5 mounting equipment 8 for soil compaction.

Installation is carried out in the following sequence.

Initially, the lower layer is poured, followed by tamping, to the appropriate height, then additional plate elements 6 are installed at the required angle 15-25, fixing their position with the mounting rail 9, which can be made U-shaped to allow equipment to pass 7 under traverse. The height of the elements of 6 soil poured to

0 a certain level, ensuring the sustainability of additional openings from elements 6 without traverse 9.

After removing the traverses 9, the embankment is formed up to the height of the end sections of the plate elements 6, the main plate elements I and the abutment of their lower end and the protrusions are mounted on them. 7, position them at an angle, and fix the position of the corresponding crosshead 9. Then, in a similar manner, the embankment is formed to the level of cruciform 3.

Placed on the supporting plate elements placed in the body of the bed are lying 3, pressing the projections 6 into the ground and covering the end portions of the elements 1 with them by loading the bed with a force somewhat larger than the calculated load.

During operation of the bridge, the loads from the span are transmitted through the ground to the ground and the supporting plate elements, which, under the action of the load and placing them at an angle, include the work of the elements covered by the plate elements in the transverse working.

which increases the carrying capacity of the usto. Additional plate elements provide for the transfer of loads to a large area of soil and the inclusion of a larger volume of it in the work.

Supporting plate elements are easy to manufacture, as they do not require special tooling, mounting them is labor-intensive, and by transferring loads to the ground both vertically and laterally, they improve soil compaction under the bed and increase the bearing capacity of the equipment.

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