CN1865596A - Longitudinal limiting device for half-through and through type arch bridge short suspension arm - Google Patents
Longitudinal limiting device for half-through and through type arch bridge short suspension arm Download PDFInfo
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- CN1865596A CN1865596A CN 200610020938 CN200610020938A CN1865596A CN 1865596 A CN1865596 A CN 1865596A CN 200610020938 CN200610020938 CN 200610020938 CN 200610020938 A CN200610020938 A CN 200610020938A CN 1865596 A CN1865596 A CN 1865596A
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- crossbeam
- short steeve
- connecting rod
- handing
- arch bridge
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Abstract
The invention relates to a short hanger rod longitudinal limit device of middle or lower truss arch bridge, which can effectively limit the longitudinal displacement of short hanger rod, eliminate fatigue break-down and stress corrosion, to confirm the safety and prolong the service life of arch bridge. Wherein, it comprises at least two connecting rods between the cross beam (14) and the nearby short hanger rod beam (15), while said connecting rods are transversely distantly arranged along the bridge beam (13); two ends of each connecting rod are hinged with the cross beam (14) and the short hanger rod beam (15).
Description
Technical field
In the present invention relates to, lower bearing arch bridge, in the particularly a kind of restriction, the stopping means of lower bearing arch bridge short steeve generation length travel.
Background technology
On half-through and lower bearing arch bridge, far away zero point because of the distortion of distance span centre near the short steeve of arch ring and bridge Dao Liang junction, this place's beam body dilatation under temperature action is bigger, causes this place's suspension rod crossbeam big along the horizontal displacement of bridge length direction therefrom.Because short steeve place crossbeam (being the suspension rod lower end) displacement is big, short steeve length is little, and the short steeve relative deformation is big, has produced higher stress in short steeve.Under this high stress, fatigue failure and stress corrosion take place in short steeve easily, and bridge security is caused very big threat.Little south gate, Yibin, the Sichuan big bridge portion bridge floor collapse accident that calendar year 2001 takes place is exactly that this is because of causing.
In building up in the past, in the lower bearing arch bridge (being called for short the suspension rod arch bridge), also there is a small amount of bridge to be provided with the limit longeron that twice connect full-bridge in beam-end, for example Chengdu-Chongqing expressway inland river Xinlong col cable-carried arch bridge, Wangcang East River bridge etc., the effect of longeron herein are the longitudinal rigidities that strengthens bridge road system.This type of suspension rod arch bridge is because the effect of longeron, arch rib and Qiao Dao tie up to level of synchronization longitudinal extension distortion under the temperature action, there is not big horizontal movement relatively in the short steeve lower end, thereby does not produce the big subsidiary stress of suspension rod upper and lower side, does not exist fatiguability to destroy and the stress corrosion problem.But this class suspension rod arch bridge is because arch rib and bridge road are vertically to rigidly connect, the arch rib horizontal displacement is big, stressed or bridge road, two ends system is connected the new problem of bringing to pier, and because the suspension rod distortion of making peace different in size is bigger, general (particularly with the crossbeam joint portion) serious cracking of this type of longeron.
Summary of the invention
Technical problem to be solved by this invention provide a kind of in, lower bearing arch bridge short steeve longitudinal spacing device, this device can limit short steeve generation length travel effectively, thereby eliminates fatigue failure and the stress corrosion threat to short steeve.
The technical solution adopted for the present invention to solve the technical problems is: in of the present invention, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: it comprises at least two connecting rods that are arranged between handing-over crossbeam and the adjacent with it short steeve crossbeam, and each connecting rod is horizontally arranged at interval along bridge road beam; The two ends of each connecting rod are hinged with handing-over crossbeam, short steeve crossbeam respectively.
In technique scheme, the quantity of described connecting rod can preferably be defined as two, and promptly these two connecting rods of connecting rod are separately positioned on the place, both ends of handing-over crossbeam, short steeve crossbeam.
As improvement of the technical scheme, for limiting length travel near each short steeve crossbeam at handing-over crossbeam position, be provided with two connecting rods between two adjacent short steeve crossbeams, these two connecting rods are horizontally arranged at interval along bridge road beam, and its two ends are hinged with two adjacent short steeve crossbeams respectively.
The invention has the beneficial effects as follows, can limit short steeve generation length travel effectively, thereby eliminate fatigue failure and stress corrosion threat, in can guaranteeing, the safety of lower bearing arch bridge and prolong its application life short steeve.
Description of drawings
This manual comprises following four width of cloth accompanying drawings:
Fig. 1 is among the present invention, lower bearing arch bridge short steeve longitudinal spacing device set-up mode schematic diagram;
Fig. 2 is among the present invention, the structural representation of lower bearing arch bridge short steeve longitudinal spacing device;
Fig. 3 is a kind of set-up mode schematic diagram of connecting rod among the present invention, in the lower bearing arch bridge short steeve longitudinal spacing device;
Fig. 4 is that Fig. 3 is the another kind of set-up mode schematic diagram of connecting rod among the present invention, in the lower bearing arch bridge short steeve longitudinal spacing device.
Component, position and numbering among the figure: arch ring 10, short steeve 11, short steeve 12, bridge road beam 13, handing-over crossbeam 14, short steeve crossbeam 15, short steeve crossbeam 16, block 17, connecting rod 20a, connecting rod 20b, connecting rod 21a, connecting rod 21b, supporting seat 22, freely movable bearing 30.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
In this explanation, described " handing-over crossbeam " is meant the fixing crossbeam that bridge road system and arch rib junction are set, described " short steeve crossbeam " is meant and joins crossbeam contiguous one or several crossbeam, and described " short steeve " is meant to be hung down by arch ring and is used to hang the suspension rod of short steeve crossbeam.In the accompanying drawing of this manual, only show and be positioned at handing-over crossbeam 14 and the short steeve crossbeam 15,16 and the short steeve 11,12 thereof of partly striding on arch ring 10 right sides, the structure that partly stride on a left side is then symmetrical with it.
See figures.1.and.2, of the present invention in, lower bearing arch bridge short steeve longitudinal spacing device comprises at least two connecting rods that are arranged between handing-over crossbeam 14 and the adjacent with it short steeve crossbeam 15, each connecting rod is horizontally arranged at interval along bridge road beam 13; The two ends of each connecting rod are hinged with handing-over crossbeam 14, short steeve crossbeam 15 respectively.
Described connecting rod can be arranged on the below of bridge road beam 13, and the two ends of connecting rod are hinged with the body of handing-over crossbeam 14, short steeve crossbeam 15 respectively.With reference to figure 3, the quantity of described connecting rod can preferably be defined as two, i.e. connecting rod 20a and connecting rod 20b, these two connecting rod 20a, 20b can be separately positioned on the place, two longitudinal part ends of handing-over crossbeam 14, short steeve crossbeam 15.
The configuration of described connecting rod 20a, 20b can be adopted following dual mode: with reference to Fig. 3, the body of described connecting rod 20a, 20b and handing-over crossbeam 14, short steeve crossbeam 15 is hinged; With reference to Fig. 4, be set with the block 17 that raises up on two longitudinal ends of described handing-over crossbeam 14, short steeve crossbeam 15 bodies, described connecting rod 20a, 20b are articulated on each block 17.Block 17 is used for the located lateral of bridge road beam 13 on arch bridge structure, and limits its lateral displacement.
Except that taking above technical measures, for limiting length travel near each short steeve crossbeam at handing-over crossbeam position, can between two adjacent short steeve crossbeams 15,16, two connecting rod 21a, 21b be set further, connecting rod 21a, 21b are horizontally arranged at interval along bridge road beam 13, and its two ends are hinged with two adjacent short steeve crossbeams 15,16 respectively.The configuration difference of connecting rod 21a, 21b can adopt aforesaid dual mode.
With reference to Fig. 3, described handing-over crossbeam 14, two adjacent short steeve crossbeams 15,16 are set with supporting seat 22 at each hinge point place.Described connecting rod 20a, 20b realize hinged by supporting seat 22 and handing-over crossbeam 14, short steeve crossbeam 15.Described connecting rod 21a, 21b realize hinged by supporting seat 22 and two adjacent short steeve crossbeams 15,16.
With reference to Fig. 4, be set with supporting seat 22 on described each block 17.Described connecting rod 20a, 20b realize hinged by supporting seat 22 and handing-over crossbeam 14, short steeve crossbeam 15; Described connecting rod 21a, 21b realize hinged by supporting seat 22 and two adjacent short steeve crossbeams 15,16.
Be that the longitudinal separation of bridge road, the end face upper edge beam 13 of described handing-over crossbeam 14, each short steeve crossbeam 15,16 and other crossbeams is set with at least two bridge road beam 13 formed the freely movable bearings 30 that support with above-mentioned each technical scheme matches.In other words, bridge road beam 13 is placed in by each freely movable bearing 30 and is constituted on the slippage braced system, because the position-limiting action of connecting rod, when bridge road beam 13 stretches because of variations in temperature, show as the slip on slippage braced system, and can not drive each short steeve crossbeam length travel, therefore short steeve can not be out of shape, therefore well relieving fatigue destroy and stress corrosion to the threat of short steeve.Compare with bilateral longitudinal beam structure, it has avoided producing the problem of big vertical equity displacement and big stress because of limit longeron effect makes arch rib, and can avoid the cracking of limit longeron.
Described freely movable bearing 30 can adopt polytetrafluoroethylene (PTFE) teflon slider bearing or other various forms of freely movable bearings.The polytetrafluoroethylene (PTFE) teflon slider bearing is except that the vertical rigidity with common laminated rubber bearing and elastic deformation and can bear vertical load and adapt to beam-ends rotates, because the low-friction coefficient between polyfluortetraethylene plate and the beam bottom stainless steel plate, can make the unrestricted characteristics of bridge superstructure horizontal movement so also have, so freely movable bearing 30 can preferably adopt the polytetrafluoroethylene (PTFE) teflon slider bearing.
It is pointed out that among top described the present invention that just explains through diagrams, some principles of lower bearing arch bridge short steeve longitudinal spacing device.Because the those of ordinary skill to constructed field is easy to carry out on this basis some modifications and change, therefore this manual be not be will with among the present invention, lower bearing arch bridge short steeve longitudinal spacing device be limited in shown in and in the described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (10)
1, in, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: it comprises at least two connecting rods that are arranged between handing-over crossbeam (14) and the adjacent with it short steeve crossbeam (15), and each connecting rod is horizontally arranged at interval along bridge road beam (13); The two ends of each connecting rod are hinged with handing-over crossbeam (14), short steeve crossbeam (15) respectively.
2, in as claimed in claim 1, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: described connecting rod is arranged on the below of Qiao Daoliang (13), the two ends of connecting rod are hinged with the body of handing-over crossbeam (14), short steeve crossbeam (15) respectively.
3, in as claimed in claim 1, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: the quantity of described connecting rod is two, be connecting rod (20a) and connecting rod (20b), these two connecting rods (20a, 20b) are separately positioned on the place, both ends of handing-over crossbeam (14), short steeve crossbeam (15).
4, in as claimed in claim 3, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: described connecting rod (20a, 20b) is hinged with the body of handing-over crossbeam (14), short steeve crossbeam (15).
5, in as claimed in claim 3, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: be set with the block (17) that raises up on two longitudinal ends of described handing-over crossbeam (14), short steeve crossbeam (15) body, described connecting rod (20a, 20b) is articulated on each block (17).
6, as claim 2 or 3 described in, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: be provided with two connecting rods (21a, 21b) between the two adjacent short steeve crossbeams (15,16), connecting rod (21a, 21b) is horizontally arranged at interval along bridge road beam (13), and its two ends are hinged with two adjacent short steeve crossbeams (15,16) respectively.
7, in as claimed in claim 6, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: described handing-over crossbeam (14), two adjacent short steeve crossbeams (15,16) are set with supporting seat (22) at each hinge point place; Described connecting rod (20a, 20b) is realized hinged by supporting seat (22) and handing-over crossbeam (14), short steeve crossbeam (15); Described connecting rod (21a, 21b) is realized hinged by supporting seat (22) and two adjacent short steeve crossbeams (15,16).
8, in as claimed in claim 6, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: be set with supporting seat (22) on described each block (17); Described connecting rod (20a, 20b) is realized hinged by supporting seat (22) and handing-over crossbeam (14), short steeve crossbeam (15); Described connecting rod (21a, 21b) is realized hinged by supporting seat (22) and two adjacent short steeve crossbeams (15,16).
9, in as claimed in claim 6, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: the longitudinal separation of bridge road, the end face upper edge beam (13) of described handing-over crossbeam (14), each short steeve crossbeam (15,16) and other crossbeams is set with at least two freely movable bearings (30) that bridge road beam (13) formed support.
10, in as claimed in claim 9, lower bearing arch bridge short steeve longitudinal spacing device, it is characterized in that: what described freely movable bearing (30) adopted is the polytetrafluoroethylene (PTFE) teflon slider bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100209385A CN100425771C (en) | 2006-04-29 | 2006-04-29 | Longitudinal limiting device for half-through and through type arch bridge short suspension arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100209385A CN100425771C (en) | 2006-04-29 | 2006-04-29 | Longitudinal limiting device for half-through and through type arch bridge short suspension arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865596A true CN1865596A (en) | 2006-11-22 |
| CN100425771C CN100425771C (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100209385A Expired - Fee Related CN100425771C (en) | 2006-04-29 | 2006-04-29 | Longitudinal limiting device for half-through and through type arch bridge short suspension arm |
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| CN (1) | CN100425771C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493365A (en) * | 2011-11-26 | 2012-06-13 | 广州大学 | Reinforced structure of half-through single-cable-plane arch bridge |
| CN102677582A (en) * | 2011-12-16 | 2012-09-19 | 中铁大桥勘测设计院集团有限公司 | Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders |
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN105648891A (en) * | 2015-09-15 | 2016-06-08 | 肖军 | Adaptive control method of temperature internal force for statically indeterminate bridge structures |
| CN106087782A (en) * | 2016-08-11 | 2016-11-09 | 宁波市交通规划设计研究院有限公司 | A kind of remodeling method of the floating bowstring arch bridge of bridge floor |
| CN112726389A (en) * | 2020-12-29 | 2021-04-30 | 辽宁工程技术大学 | Longitudinal limiting device for short suspender of through arch bridge |
| CN113356080A (en) * | 2021-07-10 | 2021-09-07 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
| WO2022156109A1 (en) * | 2021-01-21 | 2022-07-28 | 福州大学 | Longitudinal stiffener structure capable of enhancing robustness of suspension bridge system of half-through arch bridge and construction method therefor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546491Y (en) * | 2002-05-23 | 2003-04-23 | 柳州市建筑机械总厂 | Arch bridge hanger rod assembly |
| US20040020138A1 (en) * | 2002-08-02 | 2004-02-05 | Grearson Kenneth R. | Modular platform system |
-
2006
- 2006-04-29 CN CNB2006100209385A patent/CN100425771C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493365A (en) * | 2011-11-26 | 2012-06-13 | 广州大学 | Reinforced structure of half-through single-cable-plane arch bridge |
| CN102493365B (en) * | 2011-11-26 | 2013-10-16 | 广州大学 | Reinforced structure of half-through single-cable-plane arch bridge |
| CN102677582A (en) * | 2011-12-16 | 2012-09-19 | 中铁大桥勘测设计院集团有限公司 | Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders |
| CN102677582B (en) * | 2011-12-16 | 2014-10-29 | 中铁大桥勘测设计院集团有限公司 | Half-through bowstring arch bridge adopting partial rigid connection mode among arched girders |
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN105648891A (en) * | 2015-09-15 | 2016-06-08 | 肖军 | Adaptive control method of temperature internal force for statically indeterminate bridge structures |
| CN106087782A (en) * | 2016-08-11 | 2016-11-09 | 宁波市交通规划设计研究院有限公司 | A kind of remodeling method of the floating bowstring arch bridge of bridge floor |
| CN106087782B (en) * | 2016-08-11 | 2017-11-17 | 宁波市交通规划设计研究院有限公司 | A kind of remodeling method of bridge floor floating bowstring arch bridge |
| CN112726389A (en) * | 2020-12-29 | 2021-04-30 | 辽宁工程技术大学 | Longitudinal limiting device for short suspender of through arch bridge |
| WO2022156109A1 (en) * | 2021-01-21 | 2022-07-28 | 福州大学 | Longitudinal stiffener structure capable of enhancing robustness of suspension bridge system of half-through arch bridge and construction method therefor |
| CN113356080A (en) * | 2021-07-10 | 2021-09-07 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
| CN113356080B (en) * | 2021-07-10 | 2022-09-20 | 江苏百崮钢结构工程有限公司 | Middle transverse horizontal reverse jacking device for main tie beam of steel arch bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100425771C (en) | 2008-10-15 |
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Granted publication date: 20081015 |