CN112160232B - Embedded roof beam device that falls is prevented - Google Patents
Embedded roof beam device that falls is prevented Download PDFInfo
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- CN112160232B CN112160232B CN202011013882.7A CN202011013882A CN112160232B CN 112160232 B CN112160232 B CN 112160232B CN 202011013882 A CN202011013882 A CN 202011013882A CN 112160232 B CN112160232 B CN 112160232B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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Abstract
The invention relates to the field of bridge construction, and particularly discloses an embedded beam falling prevention device which comprises a bridge pier, wherein a partition plate is fixed on the upper surface of the bridge pier, the partition plate is perpendicular to the bridge pier, a horizontally arranged through groove is formed in the partition plate, a limiting column is horizontally and slidably connected in the through groove, two ends of the limiting column extend out of the through groove, end faces of two ends of the limiting column are inwards obliquely arranged, a sliding groove is vertically formed in the limiting column, a positioning column is vertically arranged in the sliding groove, the diameter of the positioning column is contacted with the side wall of the sliding groove, two ends of the positioning column penetrate out of the limiting column to be connected with the inner wall of the through groove, and springs facing the positioning rod are fixed at two ends of the sliding groove; two sections of beam bodies are placed on the bridge pier, the beam bodies are symmetrically placed around the partition plate, the upper surface of each beam body is flush with the upper surface of the partition plate, cavities are formed in the end portions of the beam bodies, and the inner diameters of the cavities are equal to the outer diameter of the limiting column; the invention aims to solve the problem that the beam body is easily damaged due to the rigid impact between the anti-falling beam facility and the beam body in the earthquake.
Description
Technical Field
The invention relates to the technical field of bridge construction, and particularly discloses an embedded beam falling prevention device.
Background
China is one of the countries with the strongest earthquake activity and the most serious earthquake disaster in the world, and particularly, beam falling examples caused by earthquakes occur in three earthquake activity areas of north China, northwest China and southwest China. The beam falling is one of the bridge earthquake disasters with the highest occurrence frequency, the most serious destructiveness and the most difficult repair. The damage form of the earthquake to the bridge superstructure comprises beam falling damage, collision damage, separation of a support from a guide groove or a bottom basin, and horizontal bearing capacity loss. The main constructional measures of traditional roof beam mode of preventing falling set up concrete dog, crab-bolt or steel bracket in pier body upper portion both sides, and the horizontal bridge is to preventing that the roof beam body from droing, nevertheless because not set up buffer, prevents that the roof beam facility of falling can take place hard striking with the roof beam body during the earthquake, leads to the fact the destruction to the roof beam body easily.
Disclosure of Invention
The invention aims to provide an embedded beam falling prevention device, which solves the problem that a beam falling prevention facility and a beam body are subjected to hard impact and the beam body is easily damaged in an earthquake.
In order to achieve the purpose, the basic scheme of the invention is as follows:
an embedded beam falling prevention device comprises a pier, wherein a partition plate is fixed on the upper surface of the pier and is perpendicular to the pier, a horizontally arranged through groove is formed in the partition plate, a limiting column is horizontally and slidably connected into the through groove, two ends of the limiting column extend out of the through groove, end faces of two ends of the limiting column are inclined inwards, a vertical sliding groove is formed in the limiting column, a positioning column is vertically arranged in the sliding groove, the outer wall of the positioning column is in contact with the side wall of the sliding groove, two ends of the positioning column penetrate out of the limiting column and are connected with the inner wall of the through groove, and springs facing the positioning column are fixed at two ends of the sliding groove; the bridge pier is provided with two sections of beam bodies, the beam bodies are symmetrically arranged around the partition plate, the upper surface of each beam body is flush with the upper surface of the partition plate, the end parts of the beam bodies are provided with cavities, the inner diameter of each cavity is equal to the outer diameter of the limiting column, the length of each cavity is greater than half of the length of the limiting column, and two ends of each limiting column respectively extend into the cavities of the corresponding beam bodies; the side walls of two ends of the limiting column are respectively provided with a groove, a concentric limiting rod is connected in the grooves in a sliding mode, a spring is fixed between the limiting rod and the grooves, the end face of the limiting rod inclines towards the direction of the limiting column, and the inclined face is intersected with the groove opening of the groove; horizontal limiting grooves are formed in the two side walls of the cavity and matched with the limiting rods, and the distance between each limiting groove and the corresponding partition plate is equal to the distance between each limiting rod and the corresponding partition plate; gaps are reserved between the two sides of the limiting column and the inner walls of the through grooves, horizontally arranged transverse grooves are formed in the through grooves and are perpendicular to the through grooves, the longitudinal sections of the transverse grooves are oval, the positioning columns are connected in the transverse grooves in a sliding mode, and buffering devices are symmetrically arranged on the two sides of the top ends of the positioning columns; buffer is including the cushion collar that is located the transverse trough, and the cushion collar is on a parallel with the transverse trough, and it has hydraulic oil all to seal in the cushion collar, runs through sliding connection's buffering post in the cushion collar, and the end in opposite directions of buffering post all offsets with the reference column, is fixed with the piston in the same centre of a circle on the buffering post middle part position, leaves the overflow clearance between piston and the cushion collar inner wall, is fixed with buffer spring between piston and the cushion collar.
Optionally, the end of the buffer sleeve extends outwards to form a partition plate, the width of the partition plate is larger than that of the beam body, threaded through holes are formed in two side walls of the partition plate, corresponding threaded holes are formed in the corresponding positions of the buffer sleeve, and the threaded through holes and the corresponding threaded holes are in threaded connection with the same bolt.
Optionally, the tip that the reference column was kept away from to the bumping post all is fixed with first fixed plate, is fixed with the otic placode that the symmetry set up on the first fixed plate, is provided with the connecting rod between the otic placode, and the otic placode is worn out at the both ends of connecting rod, and the both ends of connecting rod all are provided with the nut, are fixed with the second fixed plate on the lateral wall of pier, and it has hydraulic damper to articulate between connecting rod and the second fixed plate.
Optionally, reinforcing ribs are fixed on both sides of the partition plate, the other ends of the reinforcing ribs are fixedly connected with the bridge pier, and the reinforcing ribs are respectively contacted with the side wall of the beam body.
The working principle and the beneficial effects of the scheme are as follows:
1. in this scheme, utilize spacing post to couple together adjacent roof beam body, form integratively, utilize baffle cooperation pier, prevent that the roof beam body from beating from top to bottom and break away from the pier, simultaneously, the baffle plays isolated effect with spacing post, prevents to take place rigid collision between the roof beam body, avoids the roof beam body impaired.
2. In the scheme, the gaps between the two sides of the limiting column and the partition plate can adapt to the transverse displacement between the beam body and the pier; when an earthquake occurs, the beam body is vibrated and moves transversely together with the limiting column, the limiting column drives the positioning column to move transversely in the transverse displacement process, the positioning column pushes the buffer rod, and the buffer rod and the buffer sleeve are matched to play a role in buffering and damping, so that the beam body is prevented from being damaged due to rigid impact between the beam body and the anti-falling beam facility.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a longitudinal cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the structure of the separator according to the present invention;
FIG. 5 is a transverse cross-sectional view of FIG. 4;
FIG. 6 is a schematic view of a buffer device according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a pier 1, a beam body 2, a partition plate 3, a limiting column 4, a positioning column 5, a spring 6, a limiting groove 7, a limiting rod 8, a buffer sleeve 9, a buffer column 10, a buffer spring 11, a piston 12, a first fixing plate 13, an ear plate 14, a connecting rod 15, a nut 16, a bolt 17, a hydraulic damper 18 and a reinforcing rib 19.
Examples
As shown in fig. 1, 2, 3, 4, 5 and 6: an embedded beam falling prevention device comprises a pier 1, wherein a partition plate 3 is fixed on the upper surface of the pier 1, the partition plate 3 is perpendicular to the pier 1, a horizontally arranged through groove is formed in the partition plate 3, a limiting column 4 is horizontally and slidably connected in the through groove, the two ends of the limiting column 4 extend out of the through groove, the end faces of the two ends of the limiting column 4 are all arranged in an inward inclined mode, a vertical sliding groove is formed in the limiting column 4, a positioning column 5 is vertically arranged in the sliding groove, the outer wall of the positioning column 5 is in contact with the side wall of the sliding groove, the two ends of the positioning column 5 penetrate out of the limiting column 4 and are connected with the inner wall of the through groove, and springs 6 facing the positioning column 5 are fixed at the two ends of the sliding groove; the bridge pier comprises a pier 1 and is characterized in that two sections of beam bodies 2 are placed on the pier 1, the beam bodies 2 are symmetrically placed about a partition plate 3, the upper surfaces of the beam bodies 2 are flush with the upper surface of the partition plate 3, cavities are formed in the end portions of the beam bodies 2, the inner diameters of the cavities are equal to the outer diameter of a limiting column 4, the length of each cavity is larger than one half of the length of the limiting column 4, and two ends of each limiting column 4 extend into the corresponding cavity of the corresponding beam body 2; the side walls of two ends of the limiting column 4 are respectively provided with a groove, a concentric limiting rod 8 is connected in the grooves in a sliding mode, a spring 6 is fixed between each limiting rod 8 and each groove, the end face of each limiting rod 8 inclines towards the direction of the limiting column 4, and the inclined face is intersected with the notch of each groove; horizontal limiting grooves 7 are formed in the two side walls of the cavity, the limiting grooves 7 are matched with limiting rods 8, and the distance between the limiting grooves 7 and the partition plate 3 is equal to the distance between the limiting rods 8 and the partition plate 3; a gap is reserved between the two sides of the limiting column 4 and the inner wall of the through groove, a horizontally arranged transverse groove is formed in the through groove and is perpendicular to the through groove, the longitudinal section of the transverse groove is oval, a positioning column 5 is connected in the transverse groove in a sliding manner, and buffer devices are symmetrically arranged on the two sides of the top end of the positioning column 5; the buffer device comprises a buffer sleeve 9 positioned in a transverse groove, the buffer sleeve 9 is parallel to the transverse groove, hydraulic oil is sealed in the buffer sleeve 9, a buffer column 10 in sliding connection penetrates through the buffer sleeve 9, opposite ends of the buffer column 10 are abutted against positioning columns 5, a piston 12 with the same center is fixed in the middle of the buffer column 10, an overflow gap is reserved between the piston 12 and the inner wall of the buffer sleeve 9, and a buffer spring 11 is fixed between the piston 12 and the buffer sleeve 9; the end part of the buffer sleeve 9 extends outwards to form a partition plate 3, the width of the partition plate 3 is larger than that of the beam body 2, both side walls of the partition plate 3 are provided with threaded through holes, corresponding positions on the buffer sleeve 9 are provided with threaded holes, and the threaded through holes and the corresponding threaded holes are in threaded connection with the same bolt 17; a first fixing plate 13 is fixed at the end part of the buffer column 10 far away from the positioning column, symmetrically arranged lug plates 14 are fixed on the first fixing plate 13, a connecting rod 15 is arranged between the lug plates 14, two ends of the connecting rod 15 penetrate out of the lug plates 14, nuts 16 are arranged at two ends of the connecting rod 15, a second fixing plate is fixed on the side wall of the pier 1, and a hydraulic damper 18 is hinged between the connecting rod 15 and the second fixing plate; reinforcing ribs 19 are fixed on two sides of the partition plate 3, the other ends of the reinforcing ribs 19 are fixedly connected with the pier 1, and the reinforcing ribs 19 are respectively contacted with the side wall of the beam body 2.
The specific implementation mode is as follows:
the left end beam body 2 is lifted and placed at a designated position, in the process that the left end beam body 2 is put down, the beam body 2 extrudes an inclined plane at the left end of the limiting column 4, so that the limiting column 4 slides rightwards, after the left end beam body 2 reaches the designated position, the limiting column 4 slides to an initial position under the action of the spring 6 and the positioning column 5, and the left end of the limiting column 4 extends into a cavity of the left end beam body 2; in the process, the limiting rods 8 on the two sides of the left end of the limiting column 4 are extruded by the inner wall of the cavity and slide into the grooves until the limiting rods 8 are in contact with the limiting grooves 7, and the limiting rods 8 are ejected out under the action of the springs 6 and extend into the limiting grooves 7; then the right beam body 2 is lifted and placed at a designated position, in the process that the right beam body 2 is put down, the beam body 2 extrudes an inclined plane at the right end of the limiting column 4, so that the limiting column 4 slides towards the beam body 2 at the left end, after the right beam body 2 reaches the designated position, the limiting column 4 slides to an initial position under the action of the spring 6 and the positioning column 5, and the right end of the limiting column 4 extends into a cavity of the right beam body 2; in the process, the limiting rods 8 on the two sides of the right end of the limiting column 4 are extruded by the inner wall of the cavity and slide into the grooves until the limiting rods 8 are in contact with the limiting grooves 7, and the limiting rods 8 are ejected out under the action of the springs 6 and extend into the limiting grooves 7; after the installation is finished, the limiting rods 8 at the two ends of the limiting column 4 are abutted against the end parts of the limiting grooves 7, so that the limiting column 4 and the beam bodies 2 at the two ends form a firm whole. In the process, the installation mode between the beam body 2 and the anti-falling beam facility is simple and rapid.
When an earthquake occurs, the limiting columns 4 are matched with the through grooves to limit the vertical jumping of the beam body 2, so that the beam body 2 is prevented from being separated from the bridge pier 1; meanwhile, the beam body 2 is vibrated to transversely displace with the limiting column 4, the limiting column 4 drives the positioning column 5 to transversely move outwards in the transverse displacement process, the positioning column 5 pushes the buffer rod to transversely move outwards, and the buffer rod drives the piston 12 to move towards the direction of the buffer spring 11; the interior of the buffer sleeve 9 is divided into a first chamber and a second chamber by a piston 12, and in the process that the buffer rod drives the piston 12 to move towards the direction of the buffer spring 11, the volume of the first chamber where the buffer spring 11 is located is reduced, the pressure of hydraulic oil is increased, the hydraulic oil is forced to flow into the second chamber through an overflow gap between the buffer sleeve 9 and the piston 12, and meanwhile, the buffer spring 11 is compressed to perform energy consumption buffering on the buffer rod; the area of the reserved gap is much smaller than that of the piston 12, so that the liquid has high speed when the gap is reserved, and generates great resistance, so that the buffer rod is buffered, after the kinetic energy of the buffer rod is lost, the buffer rod slides reversely to the initial position under the action of the buffer spring 11, and meanwhile, the buffer rod pushes the positioning column 5, and the positioning column 5 drives the limiting column 4 and the beam body 2 to slide reversely to the initial position; the buffer rod and the buffer sleeve 9 are matched to play a role in buffering and damping, so that the beam body 2 is prevented from being damaged due to hard impact between the beam body 2 and the partition plate 3; in addition, when the earthquake takes place, the in-process that the buffer beam removed outwards, the tensile hydraulic damper 18 of buffer beam utilizes hydraulic damper 18 to play multistage buffering, prevents that the buffer beam from leading to the fact buffer's loss because of kinetic energy is too big, and hydraulic damper 18 plays limiting displacement to the buffer beam simultaneously, prevents that buffer from breaking away from with baffle 3 because of kinetic energy is too big.
In the whole process, the buffer device is large in loss and extremely easy to damage, and needs to be replaced and maintained regularly; only the bolt 17 on the partition plate 3 needs to be loosened, and the nut 16 and the connecting rod 15 are disassembled, so that the buffer device can be taken out; and after the maintenance is finished, the buffer device is installed.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (4)
1. The utility model provides an embedded roof beam device that falls which characterized in that: the bridge pier comprises a bridge pier, wherein a partition plate is fixed on the upper surface of the bridge pier and is perpendicular to the bridge pier, a horizontally arranged through groove is formed in the partition plate, a limiting column is horizontally connected in the through groove in a sliding manner, the two ends of the limiting column extend out of the through groove, the end faces of the two ends of the limiting column are both arranged in an inward inclined manner, a vertical sliding groove is formed in the limiting column, a positioning column is vertically arranged in the sliding groove, the outer wall of the positioning column is in contact with the side wall of the sliding groove, the two ends of the positioning column penetrate out of the limiting column to be connected with the inner wall of the through groove, and springs facing the positioning column are fixed at the two ends of the sliding groove; the bridge pier is provided with two sections of beam bodies, the beam bodies are symmetrically arranged around the partition plate, the upper surface of each beam body is flush with the upper surface of the partition plate, the end parts of the beam bodies are provided with cavities, the inner diameter of each cavity is equal to the outer diameter of the limiting column, the length of each cavity is greater than half of the length of the limiting column, and two ends of each limiting column respectively extend into the cavities of the corresponding beam bodies; the side walls of two ends of the limiting column are respectively provided with a groove, a concentric limiting rod is connected in the grooves in a sliding mode, a spring is fixed between the limiting rod and the grooves, the end face of the limiting rod inclines towards the direction of the limiting column, and the inclined face is intersected with the groove opening of the groove; horizontal limiting grooves are formed in the two side walls of the cavity and matched with the limiting rods, and the distance between each limiting groove and the corresponding partition plate is equal to the distance between each limiting rod and the corresponding partition plate; gaps are reserved between the two sides of the limiting column and the inner walls of the through grooves, horizontally arranged transverse grooves are formed in the through grooves and are perpendicular to the through grooves, the longitudinal sections of the transverse grooves are oval, the positioning columns are connected in the transverse grooves in a sliding mode, and buffering devices are symmetrically arranged on the two sides of the top ends of the positioning columns; buffer is including the cushion collar that is located the transverse trough, and the cushion collar is on a parallel with the transverse trough, and it has hydraulic oil all to seal in the cushion collar, runs through sliding connection's buffering post in the cushion collar, and the end in opposite directions of buffering post all offsets with the reference column, is fixed with the piston in the same centre of a circle on the buffering post middle part position, leaves the overflow clearance between piston and the cushion collar inner wall, is fixed with buffer spring between piston and the cushion collar.
2. The in-line beam falling prevention device of claim 1, wherein: the end part of the buffer sleeve extends outwards to form a partition plate, the width of the partition plate is larger than that of the beam body, threaded through holes are formed in two side walls of the partition plate, corresponding threaded holes are formed in the corresponding positions of the buffer sleeve, and the threaded through holes and the corresponding threaded holes are in threaded connection with the same bolt.
3. The in-line beam falling prevention device of claim 2, wherein: the buffer column is provided with a first fixing plate, the end parts of the buffer column far away from the positioning columns are fixed with lug plates symmetrically arranged, a connecting rod is arranged between the lug plates, the lug plates are penetrated out of two ends of the connecting rod, nuts are arranged at two ends of the connecting rod, a second fixing plate is fixed on the side wall of the pier, and a hydraulic damper is hinged between the connecting rod and the second fixing plate.
4. The in-line beam falling prevention device according to claim 3, wherein: reinforcing ribs are fixed on two sides of the partition plate, the other ends of the reinforcing ribs are fixedly connected with the bridge piers, and the reinforcing ribs are respectively contacted with the side walls of the beam body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013882.7A CN112160232B (en) | 2020-09-24 | 2020-09-24 | Embedded roof beam device that falls is prevented |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013882.7A CN112160232B (en) | 2020-09-24 | 2020-09-24 | Embedded roof beam device that falls is prevented |
Publications (2)
| Publication Number | Publication Date |
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| CN112160232A CN112160232A (en) | 2021-01-01 |
| CN112160232B true CN112160232B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011013882.7A Active CN112160232B (en) | 2020-09-24 | 2020-09-24 | Embedded roof beam device that falls is prevented |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942072B (en) * | 2021-02-04 | 2022-04-12 | 四川省交通勘察设计研究院有限公司 | Beam falling prevention structure of assembled bridge |
| CN113136790B (en) * | 2021-05-06 | 2022-07-19 | 中国地震局工程力学研究所 | Three-section type box girder anti-falling device |
| CN113136789B (en) * | 2021-05-06 | 2022-06-24 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN114214926B (en) * | 2022-01-20 | 2022-10-21 | 连云港市水利规划设计院有限公司 | Full-prestress spliced bridge based on distributed energy consumption control system and installation method thereof |
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| CN111455824A (en) * | 2020-04-30 | 2020-07-28 | 重庆交通大学 | Bidirectional energy-consumption beam falling prevention device |
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| CN111549651A (en) * | 2020-05-21 | 2020-08-18 | 陈贞全 | Variable damping prevents roof beam structure that falls |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05321978A (en) * | 1992-05-22 | 1993-12-07 | Mitsubishi Heavy Ind Ltd | Perpendicular damping device |
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