CN203642871U - Steel bridge deck fatigue damage repaired welded joint deformation monitoring device - Google Patents
Steel bridge deck fatigue damage repaired welded joint deformation monitoring device Download PDFInfo
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- CN203642871U CN203642871U CN201320774501.6U CN201320774501U CN203642871U CN 203642871 U CN203642871 U CN 203642871U CN 201320774501 U CN201320774501 U CN 201320774501U CN 203642871 U CN203642871 U CN 203642871U
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- deformation
- bridge deck
- monitoring device
- fatigue damage
- steel bridge
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Abstract
The utility model discloses a steel bridge deck fatigue damage repaired welded joint deformation monitoring device. The steel bridge deck fatigue damage repaired welded joint deformation monitoring device comprises a transmitting device, a deforming device and a dynamic resistance strain gauge. The transmitting device comprises a sucker, a V-shaped deformation transmitting plate and a lock catch, a folded edge of the deformation transmitting plate is equipped with the sucker, and the end part of the other folded edge is equipped with the lock catch. The deforming device comprises a deforming part, a strain gage, a fixing device and a lock catch part, one end of the deforming part is connected with the fixing device, and the strain gage is pasted on the end of the deforming part close to the fixing device. The other end of the deforming part is equipped with the lock catch part, and the lock catch part is connected with the lock catch to fixedly connect the transmitting device and the deforming device. The strain gage is connected with the dynamic resistance strain gauge via a strain gage conducting wire. The steel bridge deck fatigue damage repaired welded joint deformation monitoring device of the utility model is simple in structure and reasonable in construction, can detect the deformation amount of the repaired part of a welded joint rapidly, enables the stiffening plates to be arranged reasonably and the repair reliability of the welded joint to be improved, and prevents the welded joint from cracking again.
Description
Technical field
The utility model belongs to field of civil engineering, relates to a kind of seam deformation monitoring device, is specifically related to a kind of easy steel bridge deck fatigue damage and repairs seam deformation monitoring device.
Background technology
Steel Bridge Deck slab bridge is subject to the effect of various extraneous factors during use, and its steel bridge deck internal connection can be subject to damage in various degree, especially take corrosion and fatigue crack as main.Detecting after damage, repairing is also a very complicated thing.In steel bridge deck, floor is connected by weld seam with panel, and weld seam can produce fatigue crack under vehicular load, temperature load and unrelieved stress effect, if crackle further expands, can have influence on the general safety of bridge.Therefore the reparation of weld metal crack is very crucial.
Conventional restorative procedure is in the boring of weld metal crack place, the also method of repair welding of scraping at present.First dig an openning in commissure with rig, then with electric welding step by step piecemeal openning is welded to reality again.But in steel bridge weld seam repair process, in the situation that traffic can not be interrupted, the openning of new weldering, especially when first of weld seam, can cause floor and the excessive cracking again of panel relative deformation because of the repeated action of vehicular load and seam deformation.For fear of this cracking, can be near weld seam position two stiffeners of repair welding, control the distortion at weld seam position.But the layout of stiffener should depend on the size of the relative deformation of floor and panel, and do not have at present a kind of suitable and for the seam deformation monitoring device of steel bridge deck.
Summary of the invention
The purpose of this utility model is for fear of blindly using stiffener, cause unnecessary waste, propose a kind of steel bridge deck fatigue damage and repaired seam deformation monitoring device, it can be in steel bridge deck weld seam be repaired weld seam position U rib and panel relative deformation size under monitor vehicle load action, and determine whether to adopt in maintenance position stiffener to improve local stiffness according to monitored distortion size, reduce deformation, improve repairing quality.
For achieving the above object, the utility model adopts following technical scheme:
A kind of steel bridge deck fatigue damage is repaired seam deformation monitoring device, comprises transfer device, deformation device and dynamic resistance strain instrument; Described transfer device comprises sucker, " V " type distortion transmission plate and snap close, and a flanging of described distortion transmission plate is provided with sucker, and the end of another flanging is provided with snap close; Described deformation device comprises deformation component, foil gauge, stationary installation and lock buckling part, and one end of described deformation component is connected with stationary installation, and described deformation component is pasted with foil gauge near one end of stationary installation; The other end of described deformation component is provided with lock buckling part, and described lock buckling part is connected with described snap close, realizes being fixedly connected with of transfer device and deformation device; Described foil gauge is connected with dynamic strain indicator by foil gauge wire.
Described distortion transmission plate in obtuse angle, is made up of alloy steel, and rigidity is very much not yielding; Described sucker is concavity.
Described steel bridge deck fatigue damage is repaired seam deformation monitoring device and is also comprised nut and lead screw, and described sucker is connected with distortion transmission plate with lead screw by nut.
Described snap close has " L " type catching groove, described lock buckling part is provided with " L " type snap close clasp, described snap close clasp and snap close inner buckle groove are in the same size, described lock buckling part is connected with the catching groove of snap close by snap close clasp, guarantee firmly to connect, realize the convenience of installation and removal, the displacement of distortion transmission plate has been passed to deformation component.
Described deformation component adopts aluminium alloy to make, and modular ratio alloy steel is low, easily distortion.
In described stationary installation, be also provided with multiple fixed beams, described fixed beam is parallel to be located between two deformation components, for fixed deformation parts, protects foil gauge wire simultaneously.
Preferably, in described stationary installation, be also provided with three fixed beams.
Described fixed beam is made up of alloy steel.
The both sides of described each deformation component are pasted with respectively foil gauge, totally four of described foil gauges, and one group of foil gauge on described each deformation component is connected respectively on dynamic resistance strain instrument Yi Geqiao road by foil gauge wire.
Compared to the prior art, the beneficial effects of the utility model:
The utility model is simple in structure, structure is reasonable, is convenient to install, dismantle; Can fast detecting weld seam repair the deflection size at position, panel and the distortion of U rib under monitor vehicle load action during fatigue damage weld seam is repaired are realized, and according to relative deformation size reasonable arrange stiffener, improve the reliability that weld seam is repaired, prevent secondary cracking.
Accompanying drawing explanation
Fig. 1 is installation site and the structural representation that the utility model steel bridge deck fatigue damage is repaired seam deformation monitoring device.
Fig. 2 is the local structure figure that the utility model steel bridge deck fatigue damage is repaired the stationary installation of seam deformation monitoring device.
Fig. 3 is the local structure figure that the utility model steel bridge deck fatigue damage is repaired the snap close of seam deformation monitoring device.
Fig. 4 is each assembling parts schematic diagram that the utility model steel bridge deck fatigue damage is repaired seam deformation monitoring device.
Fig. 5 is installation site and the axonometric drawing that the utility model steel bridge deck fatigue damage is repaired seam deformation monitoring device.
Wherein, 1-steel bridge deck panel, 2-floor, 3-weld seam is repaired position, 4-sucker, 5-nut, 6-lead screw, 7-is out of shape transmission plate, 8-snap close, 9-deformation component, 10-foil gauge, 11-stationary installation, 12-foil gauge wire, 13-fixed beam, 14-snap close clasp, 15-lock buckling part, 16-deformation device, 17-transfer device, 18-dynamic resistance strain instrument, 19-Qiao road.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only be not used in restriction scope of the present utility model for the utility model is described, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of steel bridge deck fatigue damage is repaired seam deformation monitoring device, comprises transfer device 17, deformation device 16 and dynamic resistance strain instrument 18; Described transfer device 17 comprises sucker 4, " V " type distortion transmission plate 7 and snap close 8, and a flanging of described distortion transmission plate 7 is provided with sucker 4, and the end of another flanging is provided with snap close 8; Described deformation device 16 comprises deformation component 9, foil gauge 10, stationary installation 11 and lock buckling part 15, and one end of described deformation component 9 is connected with stationary installation 11, and described deformation component 9 is pasted with foil gauge 10 near one end of stationary installation 11; The other end of described deformation component 9 is provided with lock buckling part 15, and described lock buckling part 15 is connected with described snap close 8, realizes being fixedly connected with of transfer device 17 and deformation device 16; Described foil gauge 10 is connected with dynamic strain indicator by foil gauge wire 12.
Described distortion transmission plate 7 in obtuse angle, is made up of alloy steel; Described sucker 4 is concavity.
Described steel bridge deck fatigue damage is repaired seam deformation monitoring device and is also comprised nut 5 and lead screw 6, and described sucker 4 is connected with distortion transmission plate 7 with lead screw 6 by nut 5.
Described snap close 8 has " L " type catching groove, described lock buckling part 15 is provided with " L " type snap close clasp 14, described snap close clasp 14 is in the same size with snap close 8 inner buckle grooves, described lock buckling part 15 is connected with the catching groove of snap close 8 by snap close clasp 14, guarantee firmly to connect, the displacement of distortion transmission plate 7 is passed to deformation component 9.
Described deformation component 9 adopts aluminium alloy to make.The both sides of described each deformation component 9 are pasted with respectively foil gauge 10, and foil gauge 10 is as far as possible near stationary installation 11 because at deformation component 9 one end strain maximum near stationary installation 11, can make foil gauge 10 bring into play good detection effect.In described stationary installation 11, be also provided with three fixed beams of being made by alloy steel 13, described three fixed beams 13 are parallel to be located between two deformation components 9, for fixed deformation parts 9, the distortion of the end of the deformation component 9 in stationary installation 11 is negligible.One group of foil gauge 10 on described each deformation component 9 is connected with foil gauge wire 12, and foil gauge wire 12, by stationary installation 11 Base top contacts, adopts half-bridge bridge road to access respectively on dynamic resistance strain instrument 18 Yi Geqiao roads 19.
In measurement, adopt half-bridge complementary method, eliminated the measuring error causing due to extraneous factors such as temperature, using two groups of results averaged again divided by the 2 deflection sizes as practical distortion parts.
The utility model seam deformation monitoring device is arranged on the position that steel bridge deck 1 is connected with floor 2, in installation process, guarantee two distortion transmission plate 7 be provided with snap close flanging on same straight line, two distortion transmission plate 7 are adsorbed on respectively on bridge panel 1 and floor 2 by sucker 4, guarantee that by turning nut 5 sucker 4 is closely connected with bridge panel 1 and floor 2.Install after transfer device 17, deformation device 16 is fixing with transfer device 17 by lock buckling part 15.
Conventionally adopt gouge to remove the weld seam of cracking, then output a certain size openning, piecemeal repair welding, couples together panel 1 and floor 2 again.In mending course, uninterrupted traffic, be subject to Vehicle Load, bridge panel 1 and floor 2 produce relative deformation, the distortion of bridge panel 1 and floor 2 passes to deformation component 9 by transfer device 17, indirectly measures the relative deformation between bridge panel 1 and floor 2 by the variation that sticks on foil gauge 10 resistance on deformation component 9.In the time that weld seam is repaired, the moment is noted the reading of dynamic resistance strain instrument 18, and in the time that reading exceedes setting, reparation personnel can adopt the method for stiffener to improve the local stiffness of repairing position, thereby prevents the secondary cracking at weld seam reparation position 3.
Claims (9)
1. steel bridge deck fatigue damage is repaired a seam deformation monitoring device, it is characterized in that: comprise transfer device (17), deformation device (16) and dynamic resistance strain instrument (18); Described transfer device (17) comprises sucker (4), " V " type distortion transmission plate (7) and snap close (8), a flanging of described distortion transmission plate (7) is provided with sucker (4), and the end of another flanging is provided with snap close (8); Described deformation device (16) comprises deformation component (9), foil gauge (10), stationary installation (11) and lock buckling part (15), one end of described deformation component (9) is connected with stationary installation (11), and described deformation component (9) is pasted with foil gauge (10) near one end of stationary installation (11); The other end of described deformation component (9) is provided with lock buckling part (15), described lock buckling part (15) is connected with described snap close (8), realizes being fixedly connected with of transfer device (17) and deformation device (16); Described foil gauge (10) is connected with dynamic resistance strain instrument (18) by foil gauge wire (12).
2. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: described distortion transmission plate (7) in obtuse angle, is made up of alloy steel; Described sucker (4) is concavity.
3. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: described steel bridge deck fatigue damage is repaired seam deformation monitoring device and also comprised nut (5) and lead screw (6), described sucker (4) is connected with distortion transmission plate (7) with lead screw (6) by nut (5).
4. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: described snap close (8) has " L " type catching groove, described lock buckling part (15) is provided with " L " type snap close clasp (14), described snap close clasp (14) is in the same size with snap close (8) inner buckle groove, and described lock buckling part (15) is connected with the catching groove of snap close (8) by snap close clasp (14).
5. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: described deformation component (9) adopts aluminium alloy to make.
6. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: in described stationary installation (11), be also provided with multiple fixed beams (13), described fixed beam (13) is parallel to be located between two deformation components (9).
7. steel bridge deck fatigue damage according to claim 6 is repaired seam deformation monitoring device, it is characterized in that: in described stationary installation (11), be also provided with three fixed beams (13).
8. repair seam deformation monitoring device according to the steel bridge deck fatigue damage described in claim 6 or 7, it is characterized in that: described fixed beam (13) is made up of alloy steel.
9. steel bridge deck fatigue damage according to claim 1 is repaired seam deformation monitoring device, it is characterized in that: the both sides of described each deformation component (9) are pasted with respectively foil gauge (10), totally four of described foil gauges (10), the one group of foil gauge (10) on described each deformation component (9) is connected respectively on dynamic resistance strain instrument (18) Yi Geqiao road (19) by foil gauge wire (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774501.6U CN203642871U (en) | 2013-11-29 | 2013-11-29 | Steel bridge deck fatigue damage repaired welded joint deformation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774501.6U CN203642871U (en) | 2013-11-29 | 2013-11-29 | Steel bridge deck fatigue damage repaired welded joint deformation monitoring device |
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| CN203642871U true CN203642871U (en) | 2014-06-11 |
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| CN201320774501.6U Expired - Fee Related CN203642871U (en) | 2013-11-29 | 2013-11-29 | Steel bridge deck fatigue damage repaired welded joint deformation monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855786A (en) * | 2016-05-18 | 2016-08-17 | 山东电力建设第工程公司 | Method for repairing welding defects of ultra-thick-wall pipe |
| CN109946155A (en) * | 2019-02-26 | 2019-06-28 | 河海大学 | A kind of steel bridge weld stress real-time monitoring device and application method |
-
2013
- 2013-11-29 CN CN201320774501.6U patent/CN203642871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855786A (en) * | 2016-05-18 | 2016-08-17 | 山东电力建设第工程公司 | Method for repairing welding defects of ultra-thick-wall pipe |
| CN109946155A (en) * | 2019-02-26 | 2019-06-28 | 河海大学 | A kind of steel bridge weld stress real-time monitoring device and application method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161129 |