CN112726389A - Longitudinal limiting device for short suspender of through arch bridge - Google Patents
Longitudinal limiting device for short suspender of through arch bridge Download PDFInfo
- Publication number
- CN112726389A CN112726389A CN202011598729.5A CN202011598729A CN112726389A CN 112726389 A CN112726389 A CN 112726389A CN 202011598729 A CN202011598729 A CN 202011598729A CN 112726389 A CN112726389 A CN 112726389A
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- Prior art keywords
- short
- suspender
- fixing plate
- rod
- connecting rod
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
Abstract
The invention discloses a longitudinal limiting device for a short suspender of a through arch bridge, which belongs to the technical field of bridges and comprises a first short suspender and a second short suspender, wherein the bottom ends of the first short suspender and the second short suspender are fixed by a longitudinal beam body at the lower side of a cross beam; the stop device of this scheme can carry out reliable and stable vertical spacing to short jib through the setting of each structure, guarantees the stability in the whole bridge, and the strain that very big reduction stress caused short jib avoids short jib to be destroyed, has also increased the holistic stability of bridge and security.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a longitudinal limiting device for a short suspender of a through arch bridge.
Background
Deck bridges, the bridge deck of which is the bridge below the main load-bearing structures (girders, ribs, girders) of the bridge span, i.e. bridges in which the superstructure of the bridge is completely above the deck level, are called deck bridges.
Through retrieval, chinese patent No. CN100425771C discloses a longitudinal position limiter for short booms of half-through arch bridges, which comprises at least two connecting rods arranged between a cross beam and a short boom beam adjacent to the cross beam, wherein each connecting rod is arranged along the bridge road beam at intervals, and two ends of each connecting rod are respectively hinged with the cross beam and the short boom beam.
The above prior art stop device has the following disadvantages: the short jib can't cushion the stress that receives to reduce damage and the strain that leads to the fact it, lead to short jib still to bear great stress, reduced the life-span of short jib, be unfavorable for the holistic safety of bridge and stability more, therefore we propose the vertical stop device of short jib of underslung arch bridge.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a longitudinal limiting device for a short suspender of a through arch bridge.
In order to achieve the purpose, the invention adopts the following technical scheme:
a longitudinal limiting device for a short suspender of a through arch bridge comprises a first short suspender and a second short suspender, wherein the bottom ends of the first short suspender and the second short suspender are fixed by a longitudinal beam body on the lower side of a cross beam, pull rods are slidably inserted in the first short suspender and the second short suspender, the top ends of the pull rods are hinged with the bottom wall of an arch ring, telescopic cavities are formed in the first short suspender and the second short suspender, pull plates and third springs are arranged in the telescopic cavities, and the top wall of each pull plate is fixed with the bottom end of each pull rod;
a first fixing plate is fixed at a position, close to the top end, of the first short suspension rod, a first connecting rod and a second connecting rod are symmetrically hinged to two sides of the first fixing plate, one end, far away from the first fixing plate, of the first connecting rod is hinged to the bottom wall of the arch ring, a plurality of first springs are fixed on the top wall of the first fixing plate, a first adjusting ring is jointly fixed at the top end of each first spring, the first adjusting ring is sleeved at the top of the first short suspension rod and is in sliding connection with the first short suspension rod, a first nut is arranged on the upper side of the first adjusting ring, and the first nut is installed at the top end of the first short suspension rod in a threaded mode;
the utility model discloses a suspension rod, including the first fixed plate, the first fixed plate is fixed with the first nut, the first nut is fixed with.
Further, the top of first short jib and the short jib of second all is seted up threadedly, first short jib passes through screw thread and first nut installation, the short jib of second passes through screw thread and second nut installation.
Further, vertical holes are formed in the first short suspender and the second short suspender, the diameter of each vertical hole is larger than that of the corresponding pull rod, and the diameter of each vertical hole is smaller than that of the corresponding telescopic cavity.
Further, one end of the second connecting rod, which is far away from the first fixing plate, and one side of the third connecting rod, which is close to the second fixing plate, are hinged on the same side of the second fixing plate together.
Furthermore, 4-6 first springs are arranged between the top wall of the first fixing plate and the bottom wall of the first adjusting ring, and 4-6 second springs are arranged between the top wall of the second fixing plate and the bottom wall of the second adjusting ring.
Further, one side of the fourth connecting rod, which is far away from the second fixing plate, is hinged with the side wall of the long suspender.
Further, the length of the first short suspender is smaller than that of the second short suspender, and the length of the pull rod positioned inside the first short suspender is smaller than that of the pull rod positioned inside the second short suspender.
Furthermore, the third spring is wound at the bottom end of the pull rod, the top end of the third spring is fixed with the top wall of the telescopic cavity, and the bottom end of the third spring is fixed with the top wall of the pull plate.
Compared with the prior art, the invention has the beneficial effects that:
the stop device of this scheme can carry out reliable and stable vertical spacing to short jib through the setting of each structure, guarantees the stability in the whole bridge, and the strain that very big reduction stress caused short jib avoids short jib to be destroyed, has also increased the holistic stability of bridge and security.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic view of the overall structure of a short suspender longitudinal limiting device of a through arch bridge according to the invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1;
FIG. 3 is an enlarged view of a portion b of FIG. 1;
FIG. 4 is an enlarged view of a portion c of FIG. 1;
FIG. 5 is a schematic view of the first short boom and the first buffer mechanism;
fig. 6 is an installation diagram of the second short boom and the second buffer mechanism.
In the figure: the device comprises an arch ring 1, a cross beam 2, a first short suspension rod 3, a second short suspension rod 4, a first connecting rod 5, a second connecting rod 6, a third connecting rod 7, a fourth connecting rod 8, a first spring 9, a second spring 91, a first adjusting ring 10, a second adjusting ring 101, a first nut 11, a second nut 111, a pull rod 12, a pull plate 13, a third spring 14, a first fixing plate 15 and a second fixing plate 151.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, a longitudinal limiting device for a short suspender of a through arch bridge comprises a first short suspender 3 and a second short suspender 4, wherein the bottom ends of the first short suspender 3 and the second short suspender 4 are fixed by a longitudinal beam body at the lower side of a cross beam 2, pull rods 12 are inserted in the first short suspender 3 and the second short suspender 4 in a sliding manner, the top ends of the pull rods 12 are hinged with the bottom wall of an arch ring 1, telescopic cavities are formed in the first short suspender 3 and the second short suspender 4, pull plates 13 and third springs 14 are arranged in the telescopic cavities, and the top wall of each pull plate 13 is fixed with the bottom end of each pull rod 12;
a first fixing plate 15 is fixed at a position of the first short suspender 3 close to the top end, a first connecting rod 5 and a second connecting rod 6 are symmetrically hinged to two sides of the first fixing plate 15, one end of the first connecting rod 5 far away from the first fixing plate 15 is hinged to the bottom wall of the arch ring 1, a plurality of first springs 9 are fixed on the top wall of the first fixing plate 15, a first adjusting ring 10 is jointly fixed at the top end of each first spring 9, the first adjusting ring 10 is sleeved at the top of the first short suspender 3 and is in sliding connection with the first short suspender, a first nut 11 is arranged on the upper side of the first adjusting ring 10, and the first nut 11 is in threaded installation at the top end of the first short suspender 3;
the position department that the short jib 4 of second is close to the top is fixed with second fixed plate 151, the bilateral symmetry of second fixed plate 151 articulates there are third connecting rod 7 and fourth connecting rod 8, the one end that second fixed plate 151 was kept away from to third connecting rod 7 is articulated with the diapire of hunch circle 1, the one end that first fixed plate 15 was kept away from to second connecting rod 6 is articulated with one side of second fixed plate 151, be fixed with a plurality of second springs 91 on the roof of second fixed plate 151, the top of second spring 91 is fixed with second adjustable ring 101 jointly, second adjustable ring 101 cover is established at the top of the short jib 4 of second and is rather than sliding connection, the upside of second adjustable ring 101 is equipped with second nut 111, and second nut 111 threaded mounting is on the top of the short jib 4 of second.
The top of first short jib 3 and the short jib 4 of second all has seted up the screw thread, and first short jib 3 passes through the screw thread and installs with first nut 11, and the short jib 4 of second passes through the screw thread and installs with second nut 111.
Vertical holes are formed in the first short suspender 3 and the second short suspender 4, the diameter of each vertical hole is larger than that of the pull rod 12, and the diameter of each vertical hole is smaller than that of the telescopic cavity. When the first short suspension lever 3 and the second short suspension lever 4 are subjected to a force, both the first short suspension lever 3 and the second short suspension lever 4 are displaced with respect to the drawbar 12 and are subjected to an elastic force of the lower third spring 14.
The end of the second connecting rod 6 away from the first fixing plate 15 is hinged to the same side of the second fixing plate 151 as the side of the third connecting rod 7 close to the second fixing plate 151. The second connecting rod 6 and the third connecting rod 7 are jointly mounted on the same side of the second fixed plate 51 by means of a rotary hinge mount.
4-6 first springs 9 are arranged between the top wall of the first fixing plate 15 and the bottom wall of the first adjusting ring 10, and 4-6 second springs 91 are arranged between the top wall of the second fixing plate 151 and the bottom wall of the second adjusting ring 101. The second spring 91 may be wound around the outside of the second short suspension lever 4, but in order to obtain a sufficient elastic force, the diameter of the second spring 91 needs to be larger. The same applies to the first spring 9 on the first short boom 3.
The side of the fourth connecting rod 8 far away from the second fixing plate 151 is hinged with the side wall of the long suspension rod. The long boom is not shown in the figure and is positioned on the side of the second short boom 4 remote from the first short boom 3, i.e. closer to the centre of the arch 1.
In this embodiment, the length of the first short suspension bar 3 is smaller than that of the second short suspension bar 4, and the length of the tie rod 12 located inside the first short suspension bar 3 is smaller than that of the tie rod 12 located inside the second short suspension bar 4.
In this embodiment, the third spring 14 is wound around the bottom end of the pull rod 12, the top end of the third spring 14 is fixed to the top wall of the telescopic cavity, and the bottom end of the third spring is fixed to the top wall of the pull plate 13. In addition, the third spring 14 can be fixed between the top wall of the telescopic slot and the top wall of the pull plate 13 independently, i.e. not wound around the bottom end of the pull rod 12, and a plurality of third springs 14 can be used, so as to increase the elastic force to the pull plate 13 and the pull rod 12. It is more advantageous to cope with the stress developed in the short tie rod.
The working principle and the using process of the invention are as follows: when the first short suspension rod 3 and the second short suspension rod 4 are stressed by the arch ring 1, the cross beam 2 and the longitudinal beam body, the stress can be primarily buffered under the coordination of the pull rod 12, the pull plate 13 and the third spring 14;
then the first short suspender 3 is buffered again through the cooperation of a first spring 9 arranged at the top end, a first adjusting plate 10 and a first nut 11; the second short suspender 4 is buffered again through the cooperation of the second spring 91, the second adjusting plate 101 and the second nut 111 which are arranged at the top end, and the double buffering of the two short suspenders is firstly carried out, so that the short suspender strain and damage caused by stress are avoided.
Wherein, the force of the first spring 9 on the first short suspension rod 3 can be adjusted according to the requirement, and only the first nut 11 is needed to rotate to control the first adjusting plate 10 to move. The same is true. The force of the second spring 91 on the second short suspension rod 4 is adjusted by rotating the second nut 111 to control the movement of the second adjusting plate 101.
In addition, the first connecting rod 5, the second connecting rod 6 and the first fixing plate 15, and the third connecting rod 7, the fourth connecting rod 8 and the second fixing plate 151 ensure the stability of the whole limiting device and the whole bridge when the first short suspension rod 3 and the second short suspension rod 4 are stressed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The longitudinal limiting device for the short suspender of the through arch bridge comprises a first short suspender (3) and a second short suspender (4), and is characterized in that the bottom ends of the first short suspender (3) and the second short suspender (4) are fixed by a longitudinal beam body on the lower side of a cross beam (2), pull rods (12) are inserted in the first short suspender (3) and the second short suspender (4) in a sliding manner, the top ends of the pull rods (12) are hinged with the bottom wall of an arch ring (1), telescopic cavities are formed in the first short suspender (3) and the second short suspender (4), pull plates (13) and third springs (14) are arranged in the telescopic cavities, and the top wall of each pull plate (13) is fixed with the bottom end of each pull rod (12);
a first fixing plate (15) is fixed at a position, close to the top end, of the first short suspension rod (3), a first connecting rod (5) and a second connecting rod (6) are symmetrically hinged to two sides of the first fixing plate (15), one end, far away from the first fixing plate (15), of the first connecting rod (5) is hinged to the bottom wall of the arch ring (1), a plurality of first springs (9) are fixed on the top wall of the first fixing plate (15), a first adjusting ring (10) is jointly fixed to the top ends of the first springs (9), the first adjusting ring (10) is sleeved at the top of the first short suspension rod (3) and is in sliding connection with the first short suspension rod, a first nut (11) is arranged on the upper side of the first adjusting ring (10), and the first nut (11) is installed at the top end of the first short suspension rod (3) in a threaded mode;
a second fixing plate (151) is fixed at the position of the second short suspender (4) close to the top end, a third connecting rod (7) and a fourth connecting rod (8) are symmetrically hinged on two sides of the second fixing plate (151), one end of the third connecting rod (7) far away from the second fixing plate (151) is hinged with the bottom wall of the arch ring (1), one end of the second connecting rod (6) far away from the first fixing plate (15) is hinged with one side of the second fixing plate (151), a plurality of second springs (91) are fixed on the top wall of the second fixing plate (151), the top ends of the second springs (91) are jointly fixed with a second adjusting ring (101), the second adjusting ring (101) is sleeved at the top of the second short suspender (4) and is connected with the second short suspender in a sliding way, a second screw cap (111) is arranged on the upper side of the second adjusting ring (101), and a second nut (111) is arranged at the top end of the second short suspender (4) in a threaded manner.
2. The longitudinal limiting device for the short suspension rod of the through arch bridge according to claim 1, wherein the top ends of the first short suspension rod (3) and the second short suspension rod (4) are both threaded, the first short suspension rod (3) is installed with a first nut (11) through threads, and the second short suspension rod (4) is installed with a second nut (111) through threads.
3. The longitudinal limiting device for the short suspension rod of the through arch bridge according to claim 1 or 2, wherein the first short suspension rod (3) and the second short suspension rod (4) are provided with vertical holes inside, the diameter of each vertical hole is larger than that of the pull rod (12), and the diameter of each vertical hole is smaller than that of the telescopic cavity.
4. The longitudinal spacing device for short suspender of through arch bridge as claimed in claim 1 or 2, wherein the end of the second connecting rod (6) far away from the first fixing plate (15) is hinged on the same side of the second fixing plate (151) with the side of the third connecting rod (7) near the second fixing plate (151).
5. The longitudinal limiting device for the short suspension rod of the through arch bridge according to claim 1, wherein 4-6 first springs (9) are commonly arranged between the top wall of the first fixing plate (15) and the bottom wall of the first adjusting ring (10), and 4-6 second springs (91) are commonly arranged between the top wall of the second fixing plate (151) and the bottom wall of the second adjusting ring (101).
6. The longitudinal spacing device for short suspender of through arch bridge as claimed in claim 1, wherein the side of the fourth connecting rod (8) far from the second fixing plate (151) is hinged with the side wall of the long suspender.
7. The longitudinal restraining device of a short suspender of an underslung arch bridge according to claim 1 or 2, characterized in that the length of the first short suspender (3) is smaller than the length of the second short suspender (4), and the length of the tie rod (12) inside the first short suspender (3) is smaller than the length of the tie rod (12) inside the second short suspender (4).
8. The longitudinal limiting device for the short suspension rod of the through arch bridge as claimed in claim 1, wherein the third spring (14) is wound around the bottom end of the pull rod (12), the top end of the third spring (14) is fixed with the top wall of the telescopic cavity, and the bottom end is fixed with the top wall of the pull plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598729.5A CN112726389B (en) | 2020-12-29 | 2020-12-29 | Longitudinal limiting device for short suspender of through arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598729.5A CN112726389B (en) | 2020-12-29 | 2020-12-29 | Longitudinal limiting device for short suspender of through arch bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN112726389A true CN112726389A (en) | 2021-04-30 |
| CN112726389B CN112726389B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011598729.5A Active CN112726389B (en) | 2020-12-29 | 2020-12-29 | Longitudinal limiting device for short suspender of through arch bridge |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040040100A1 (en) * | 2002-09-04 | 2004-03-04 | Mitsuhiro Tokuno | Reinforcement structure of truss bridge or arch bridge |
| CN1865596A (en) * | 2006-04-29 | 2006-11-22 | 四川省交通厅公路规划勘察设计研究院 | Longitudinal limiting device for half-through and through type arch bridge short suspension arm |
| US20100281632A1 (en) * | 2009-05-08 | 2010-11-11 | Meheen H Joe | Tunable Load Sharing Arch Bridge |
| CN205954467U (en) * | 2016-08-05 | 2017-02-15 | 程晓锋 | Bridge with bearing shape variable structure |
| CN207728019U (en) * | 2017-12-26 | 2018-08-14 | 江苏意统加固行工程有限公司 | A kind of roof truss beam ruggedized construction |
| CN207728054U (en) * | 2017-12-29 | 2018-08-14 | 宁夏农林科学院 | A kind of double film large span arched sheds of welding assembly type |
| CN207846186U (en) * | 2018-01-18 | 2018-09-11 | 成都名典匠心工业产品设计有限公司 | A kind of bridge with load-bearing deformation structure |
-
2020
- 2020-12-29 CN CN202011598729.5A patent/CN112726389B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040040100A1 (en) * | 2002-09-04 | 2004-03-04 | Mitsuhiro Tokuno | Reinforcement structure of truss bridge or arch bridge |
| CN1865596A (en) * | 2006-04-29 | 2006-11-22 | 四川省交通厅公路规划勘察设计研究院 | Longitudinal limiting device for half-through and through type arch bridge short suspension arm |
| US20100281632A1 (en) * | 2009-05-08 | 2010-11-11 | Meheen H Joe | Tunable Load Sharing Arch Bridge |
| CN205954467U (en) * | 2016-08-05 | 2017-02-15 | 程晓锋 | Bridge with bearing shape variable structure |
| CN207728019U (en) * | 2017-12-26 | 2018-08-14 | 江苏意统加固行工程有限公司 | A kind of roof truss beam ruggedized construction |
| CN207728054U (en) * | 2017-12-29 | 2018-08-14 | 宁夏农林科学院 | A kind of double film large span arched sheds of welding assembly type |
| CN207846186U (en) * | 2018-01-18 | 2018-09-11 | 成都名典匠心工业产品设计有限公司 | A kind of bridge with load-bearing deformation structure |
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| Publication number | Publication date |
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| CN112726389B (en) | 2022-07-22 |
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