CN214939257U

CN214939257U - Maintenance device additionally arranged on existing concrete bridge

Info

Publication number: CN214939257U
Application number: CN202120504513.1U
Authority: CN
Inventors: 戴捷; 刘伟; 单宏伟; 周彦锋; 唐章翔
Original assignee: China Design Group Co Ltd
Current assignee: China Design Group Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-30
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses an overhaul and maintenance device which is additionally arranged on the existing concrete bridge, comprising a walking mechanism, a track system, a transverse channel, a vertical channel, a detachable overhaul platform and a fixed electric hydraulic lifting device; the track system is fixed on two sides of the bridge floor, and the travelling mechanism is arranged on the track system; the transverse channel stretches across the bottom of the bridge, two ends of the transverse channel are fixedly connected with vertical channels, and the vertical channels are fixed on the travelling mechanisms on the corresponding sides; the transverse channel is connected with a fixed type electric hydraulic lifting device for overhauling the webless box girder and an overhauling platform for inspecting a bottom plate of the box girder; the movable type concrete bridge maintenance device can be suitable for movable type maintenance of concrete bridges with large bridge widths and without bottom plates between boxes.

Description

Maintenance device additionally arranged on existing concrete bridge

Technical Field

The utility model belongs to concrete box girder bridge maintains the field, especially one kind is add and is maintained the device in the maintenance of existing concrete bridge roof beam bridge.

Background

For large bridges under construction or already built, ensuring accessibility, inspection and repairability of main structures of the large bridges is of great importance to bridge management and maintenance departments. Patent No. ZL201510208602.0 proposes a bridge inspection and maintenance device that does not require a dedicated track to be installed, and is only suitable for bridges with a small bridge width, such as high-speed railway bridges, due to the cantilever structure. When the span of the bridge becomes large, the overhaul channel hung out of the bottom of the bridge has potential safety hazard in stress, and the requirement of the bridge with large bridge width cannot be met. And the walking guide beam of the design uses a large amount of steel, and is not economical enough for bridges with large spans. Patent No. ZL201822096325.0 proposes a trackless mobile maintenance device that requires bridges to have very strong impact walls that can bear the weight of the device, and not all bridges have impact walls that are strong enough for the maintenance device to be installed. Patent number ZL201720086406.5 provides a bridge maintenance system, need just consider pre-buried complete sets (pre-buried bucket) when the design, can't use on concrete box girder bridge or existing bridge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an add in the maintenance device of existing concrete bridge to be applicable to the portable maintenance of the concrete bridge that the bridge width is great, the bottom plate is not established between the case and maintain.

Realize the utility model discloses the technical solution of purpose does:

a maintenance device additionally arranged on an existing concrete bridge comprises a travelling mechanism, a track system, a transverse channel, a vertical channel, a detachable maintenance platform and a fixed type electric hydraulic lifting device;

the track system is fixed on two sides of the bridge floor, and the travelling mechanism is arranged on the track system; the transverse channel stretches across the bottom of the bridge, two ends of the transverse channel are fixedly connected with vertical channels, and the vertical channels are fixed on the travelling mechanisms on the corresponding sides; the transverse channel is connected with a fixed type electric hydraulic lifting device for overhauling the webless box girder and an overhauling platform for inspecting a bottom plate of the box girder.

Compared with the prior art, the utility model, it is showing the advantage and is:

(1) the device has small influence on the whole appearance of the bridge, well solves the problem that the bottom of the box girder of the original large bridge cannot be checked and maintained, provides convenience for future checking work of management departments, and is suitable for bridges with large width.

(2) The device adds the component as the back, need consider its weight and the influence of arrangement mode to bridge major structure, and the device weight is arranged evenly, and the structure is slim and graceful, guarantees major structure's safety to also need guarantee the personnel and the production safety of managing and maintaining personnel.

(3) As the bridge is built and operated, the device is arranged below the bridge floor, the traffic does not need to be interrupted, and the installation of the overhaul channel does not influence the normal traffic.

(4) The walking track of the device is arranged on the box girder top plate, so that the device is convenient to inspect and maintain at ordinary times and has high safety.

Drawings

Figure 1 is a side view of a mobile service maintenance unit installation.

Fig. 2 is a front view of the mobile service maintenance unit.

Fig. 3 is a schematic view of a transverse channel structure.

Fig. 4 is a schematic view of a vertical channel structure.

Fig. 5 is a schematic structural view of a fixed type electro-hydraulic lifting device.

Figure 6 is a schematic view of a detachable service platform connection.

Fig. 7 is a front view of a rail system configuration.

Fig. 8 is a schematic view of a rail system installation.

Figure 9 is a side view of a rail system configuration.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

With reference to fig. 1 and 2, the mobile maintenance device for the concrete bridge girder of the present invention comprises a traveling mechanism 1, a track system 2, a transverse channel 3, a vertical channel 4, a maintenance platform 5, and a fixed electric hydraulic lifting device 6;

the movable type overhauling and maintaining device adopts a scheme of hanging a crane, namely, a track system 2 is fixedly connected to two sides of the bridge deck, a travelling mechanism 1 can move on the track system 2 and is used for driving the whole device to move, a transverse channel 3 is arranged at the bottom of the bridge, the transverse channel 3 spans the bottom of the bridge, vertical channels 4 are fixedly connected to two ends of the transverse channel 3, and the vertical channels 4 are fixed on travelling mechanisms on corresponding sides.

The transverse channel 3 and the vertical channel 4 mainly bear the dead weight, the load of the inspection personnel, the maintenance inspection apparatus and other articles, and the inspection personnel and the maintenance inspection apparatus are supplied for manual passing.

Referring to fig. 3, the main body of the transverse channel 3 is a traditional transversely-arranged truss structure 33, an aluminum checkered plate 32 is fixed in the middle of the truss structure 33, so that the bottom of the box girder can be maintained and checked conveniently, and the fixed height is suitable for a maintainer to check the bottom of the box girder. First guardrails 31 are arranged on the upper portion of the transverse channel 3, and the first guardrails 31 are fixed on two sides of the upper end of the truss structure 33 so as to protect the safety of maintenance personnel.

Referring to fig. 4, the main body of the vertical channel 4 adopts a traditional vertically-arranged truss structure 45, a ladder 42 is fixed on the truss structure 45, the top of the vertical channel 4 is a platform 44, the platform 44 is fixed with the truss structure 45, a through hole 41 for people to pass through is arranged on the platform 44, and people can conveniently go down to the transverse channel 3 from the through hole 41 through the ladder 42. A second guardrail 43 is fixed on the platform 44 for ensuring the safety of personnel.

With reference to fig. 5, two fixed electric hydraulic lifting devices 6 are installed in the middle of the transverse channel 3, each fixed electric hydraulic lifting device 6 comprises a platform 61, a lifting system 62 and a bottom plate 63, the platform 61 is fixed on the upper portion of the lifting system 62, the lifting system 62 is fixed on the bottom plate 63, the bottom plate 63 is fixed on the transverse channel 3, the lifting system 62 is driven by a hydraulic cylinder, and the platform 61 can be stopped and self-locked at any stroke position for the maintenance requirement of the webless box girder. Two fixed electrohydraulic lifting device 6 establish platform descending detection device that resets, can set up travel switch meeting sensor on cross passageway 3, detect whether fixed electrohydraulic lifting device 6 descends and targets in place, when platform 61 descends to touch travel switch or sensor and detects that platform 61 descends to the low level, show that electrohydraulic lifting device 6 descends and targets in place, running gear 1 just can walk.

Combine fig. 6, two can dismantle maintenance platform 5 are installed to 3 both sides of transverse channel, and it is fixed with 3 logical bolted connection of transverse channel to overhaul platform 5, makes things convenient for the maintainer to inspect case roof beam both sides bottom plate.

With reference to fig. 7-9, the rail system 2 is disposed outside the box girder top tuyere, the rail girder 21 is made of i-shaped steel, the top surface of the rail girder 21 is welded with the main rail 22 for bearing the traveling mechanism, and is matched with the rollers of the traveling mechanism 1, and the traveling mechanism 1 is driven by the motor and can travel on the main rail 22. The track beam 21 is longitudinally laid on the top surface of the concrete base 24 and connected with the concrete base 24 through the embedded bolts 23 on the top surface of the base 24. The track beam is made of H300 × 300 section steel, and the main track 22 is made of 80 × 85 square steel. The concrete base 24 should avoid the down-guy anchorage and the box girder diaphragm end position. The base 24 is fixed on the bridge floor 25 through a bar planting screw 26.

The method for checking and maintaining comprises the following steps: get into vertical passage 4 by the bridge floor, go down to transverse channel 3 through cat ladder 42, through 2 can dismantle the help of overhauing

platform

5 and 2 fixed electronic hydraulic lifting device 6, manage the condition of maintenance personnel can be very convenient inspection box roof beam bottom. The management personnel can also operate the travelling mechanism 1, and the travelling mechanism 1 travels along the track system 2 to inspect the bottom of the full-bridge box girder.

Claims

1. A maintenance device additionally arranged on an existing concrete bridge is characterized by comprising a travelling mechanism (1), a track system (2), a transverse channel (3), a vertical channel (4), a maintenance platform (5) and a fixed type electric hydraulic lifting device (6);

the track system (2) is fixed on two sides of the bridge floor, and the travelling mechanism (1) is arranged on the track system (2); the transverse channel (3) stretches across the bottom of the bridge, the two ends of the transverse channel (3) are fixedly connected with vertical channels (4), and the vertical channels (4) are fixed on the travelling mechanisms on the corresponding sides; the transverse channel (3) is connected with a fixed type electric hydraulic lifting device (6) for overhauling the webless box girder and an overhauling platform (5) for inspecting a bottom plate of the box girder.

2. The overhaul and maintenance device added to an existing concrete bridge according to claim 1, wherein the transverse channel (3) comprises a transversely arranged truss structure and a checkerboard (32); the pattern plate (32) is fixed in the middle of the truss structure (33).

3. The service and maintenance device added to an existing concrete bridge according to claim 2, characterized in that said transverse channel (3) further comprises a first guardrail (31), said first guardrail (31) being fixed on both sides of the upper end of the truss structure (33).

4. The overhaul and maintenance device added to an existing concrete bridge according to claim 1, wherein the vertical channel (4) comprises a vertical truss structure, a ladder (42), a platform (44);

the ladder stand is fixed on the truss structure (42), the platform (44) is fixed on the truss structure (45), and the through hole (41) through which a person passes is formed in the platform (44).

5. The service and maintenance device added to an existing concrete bridge according to claim 4, characterized in that said vertical channel (4) further comprises a second guardrail (43), said second guardrail (43) being fixed on a platform (44).

6. The overhaul and maintenance device added to an existing concrete bridge according to claim 1, wherein the fixed electrohydraulic lifting device (6) comprises a platform (61), a lifting system (62), and a bottom plate (63); the platform (61) is fixed on the upper part of the lifting system (62), the lifting system (62) is fixed on the bottom plate (63), the bottom plate (63) is fixed on the transverse channel (3), and the lifting system (62) is driven by a hydraulic cylinder.

7. The overhauling and maintaining device additionally arranged on the existing concrete bridge according to claim 6, wherein a platform descending and resetting detection device is arranged on the transverse channel (3) and is used for detecting whether the fixed type electric hydraulic lifting device (6) descends in place.

8. The overhaul and maintenance device additionally arranged on an existing concrete bridge according to claim 1, wherein the overhaul platform (5) is detachably connected.

9. The overhaul and maintenance device added to the existing concrete bridge according to claim 1, wherein the rail system (2) is arranged outside a tuyere on the top surface of the box girder and comprises a rail girder (21), a main rail (22) and a base (24); the track beam (21) is fixed on the base (24), the base (24) is fixed on the bridge deck (25), and the main track (22) is fixed on the track beam (21).

10. The overhaul and maintenance device additionally arranged on the existing concrete bridge according to claim 9, wherein the track beam (21) is connected with the base (24) through the embedded bolt (23), and the base (24) is fixed on the bridge deck (25) through the bar-planting screw (26).