CN210766400U

CN210766400U - Operating means suitable for construction of thin layer ultra high performance concrete

Info

Publication number: CN210766400U
Application number: CN201921004400.4U
Authority: CN
Inventors: 贾卫中; 孟超; 段匡世; 周尚猛
Original assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC
Current assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-06-16
Anticipated expiration: 2029-06-28

Abstract

An operating device suitable for thin-layer ultra-high performance concrete construction relates to the technical field of bridge construction and comprises a main truss and at least two groups of connecting pieces; two ends of the main truss are respectively provided with a walking mechanism capable of walking along the end wall of the bridge; the connecting piece is connected below the main truss, a connecting platform is fixed at the bottom of the connecting piece, and the bottom of the platform is higher than and parallel to the bridge floor; and a rolling shaft provided with a plastic film is arranged above the platform along the transverse bridge direction, and when the operating device walks along the bridge, the plastic film on the rolling shaft rolls and covers the concrete surface of the bridge. The utility model discloses not only solved the vibration of the super high performance concrete on the bridge steel bridge floor, paved and the problem of maintenance, can also realize continuous integration operation, improved the efficiency of construction greatly.

Description

Operating means suitable for construction of thin layer ultra high performance concrete

Technical Field

The utility model relates to a bridge construction technical field specifically is an operating means suitable for thin layer ultra high performance concrete construction.

Background

In recent years, in order to solve the problems that orthotropic steel bridge deck plates are easy to fatigue crack and asphalt pavement layers are easy to damage, ultrahigh-performance concrete is gradually applied to the construction of bridge steel bridge deck pavement layers. However, because the conventional concrete is thick in pavement thickness, in the construction process of a bridge steel bridge deck pavement layer, a vibration pump is usually directly adopted for vibration and paving, and then slurry collection and maintenance are sequentially carried out; the pavement layer of the ultra-high performance concrete is relatively thin, generally 5-10cm, and is no longer suitable for being vibrated and paved by using a vibrating pump, so that a construction technology which is suitable for the ultra-high performance concrete and continuously integrates operations is urgently needed to solve the technical problems of pavement and the like of the ultra-high performance concrete.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide an operating means suitable for thin layer ultra high performance concrete construction has not only solved the vibration of the ultra high performance concrete on the bridge steel bridge floor, has paved and the problem of maintenance, can also realize continuous integration operation, has improved the efficiency of construction greatly.

In order to achieve the purpose, the technical scheme adopted by the utility model is an operating device suitable for thin-layer ultra-high performance concrete construction, which comprises a main truss and at least two groups of connecting pieces; two ends of the main truss are respectively provided with a walking mechanism capable of walking along the end wall of the bridge; the connecting piece is connected below the main truss, a connecting platform is fixed at the bottom of the connecting piece, and the bottom of the platform is higher than the bridge floor and is parallel to the bridge floor; and a rolling shaft provided with a plastic film is arranged above the platform along the transverse bridge direction, and when the operating device walks along the bridge, the plastic film on the rolling shaft rolls and covers the concrete surface of the bridge.

On the basis of the technical scheme, each group of connecting pieces comprises a transverse rod and two longitudinal rods, the transverse rods are arranged at the bottom ends of the main trusses along the bridge direction, and the two longitudinal rods are respectively and vertically arranged at two ends of the transverse rods; one end of each longitudinal rod is connected with one end of the transverse rod, and the other end of each longitudinal rod is connected with the platform.

On the basis of the technical scheme, the connecting pieces are arranged in two groups in parallel, and the plane where each group of connecting pieces is located is perpendicular to the platform.

On the basis of the technical scheme, two ends of the rolling shaft are respectively connected with the longitudinal rods of the two groups of connecting pieces on the platform, and the rolling shaft is adjacent to the rear side of the platform in the walking direction.

On the basis of the technical scheme, the top surface of the platform is provided with two supporting columns, two ends of the rolling shaft are respectively fixed on one supporting column, and the rolling shaft is adjacent to the rear side of the walking direction of the platform.

On the basis of the technical scheme, the width of the platform is larger than that of the main truss.

On the basis of the technical scheme, the operating device is also provided with an engine, and the walking mechanism is connected with the engine.

On the basis of the technical scheme, a vibration beam is further arranged in front of the walking direction of the operating device and connected with the engine; the vibration beam and the operation device are spaced at a certain distance, and the walking direction and the walking speed of the vibration beam and the operation device are the same.

On the basis of the technical scheme, the bottom of the vibration beam is provided with a sliding shoe capable of adjusting the gradient.

On the basis of the technical scheme, the vibration beam is composed of 2.0m standard segments, the main truss is composed of 1.5m standard segments, and a pair of connecting pieces is arranged on the main truss of each two standard segments.

The beneficial effects of the utility model reside in that:

1. the operating device of the utility model is erected between the end walls at the two sides of the bridge through the main truss, the lower part of the main truss is connected with the platform through the connecting piece, and the platform is suspended above the bridge floor; meanwhile, a vibrating beam is arranged in front of the moving direction of the operating device, and a rolling shaft provided with a plastic film is arranged at the rear part of the platform; when the operating device walks, the vibrating beam with the same walking direction and speed as the operating device vibrates and paves the ultra-high performance concrete in front, workers on the platform find leaks and mend at the rear, meanwhile, the plastic film of the rolling shaft is spread and paved above the ultra-high performance concrete, and the workers spray a small amount of water mist on the film to prevent the film from being blown up by wind; the process solves the problems of vibration, paving and maintenance of the ultra-high performance concrete, enables the three steps of vibration, paving and maintenance to be operated synchronously, realizes continuous integration of operation, greatly improves the construction efficiency of each step, and saves manpower and material resources.

2. The utility model discloses a vibrating beam bottom is provided with the adjustable piston shoes that can be according to concrete thickness adjustment height and slope, adjustment vibrating beam height and slope that can be convenient fast to the concrete layer of mating formation that obtains different thickness and different slopes has improved work efficiency greatly.

Drawings

Fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a top view of an embodiment of the present invention.

Fig. 3 is a left side view of the embodiment of the present invention.

Reference numerals: 1-main truss, 2-connecting piece, 3-platform, 4-rolling shaft, 5-walking structure, 6-engine and 7-strut.

Detailed Description

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1, an operating device suitable for thin ultra-high performance concrete construction comprises a main truss 1 and at least two groups of connecting pieces 2; and two ends of the main truss 1 are respectively provided with a walking mechanism 5 capable of walking along the end wall of the bridge. When the walking mechanism 5 walks, the operation device is driven to walk along the bridge direction. The connecting piece 2 is connected below the main truss 1, a connecting platform 3 is fixed at the bottom of the connecting piece 2, and the bottom of the platform 3 is higher than the bridge floor and is parallel to the bridge floor. A roller 4 provided with a plastic film is arranged above the platform 3 along the transverse bridge direction, and when the operating device walks along the bridge, the plastic film on the roller 4 rolls and covers the concrete surface of the bridge.

As shown in fig. 3, in this embodiment, each set of connecting members 2 includes a cross bar and two longitudinal bars, the cross bar is installed at the bottom end of the main truss 1 along the bridge-following direction, and the two longitudinal bars are respectively vertically arranged at two ends of the cross bar; one end of each longitudinal rod is connected with one end of the transverse rod, and the other end of each longitudinal rod is connected with the platform 3. Preferably, the cross bars and the longitudinal bars, the cross bars and the main truss 1, and the longitudinal bars and the platform 3 are connected by welding.

Specifically, a steel plate is laid at the bottom of the platform 3, and workers can work above the platform 3.

Preferably, the connecting members 2 are arranged in two sets in parallel, and the plane of each set of connecting members 2 is perpendicular to the platform 3.

In one embodiment, two ends of the roller 4 are respectively connected to the two groups of connecting rods 2; specifically, one end of the roller 4 is connected to the longitudinal rod of one set of connecting pieces 2 on the platform 3, and the other end of the roller 4 is connected to the longitudinal rod of the other set of connecting pieces 2. Meanwhile, the roller 4 is located adjacent to the rear side of the platform 3 in the walking direction. The rear side of the platform 3 in the walking direction is the tail of the platform 3 when the operating device walks forwards along the bridge.

In another embodiment, two pillars 7 are provided on the top surface of the platform 3, two ends of the roller 4 are respectively fixed to one pillar 7, and the roller 4 is adjacent to the rear side of the platform 3 in the walking direction. In particular, the two uprights 7 are each perpendicular to the platform 3 and to the roller 4, respectively. Preferably, the support 7 is a steel bar, and the support 7 is connected with the roller 4 and the support 7 is connected with the platform 3 by welding.

As shown in fig. 2, in the present embodiment, the width of the platform 3 is greater than the width of the main girder.

In this embodiment the operating device is further provided with an engine 6, which engine 6 is fixedly mounted above the main girder 1. The engine 6 is connected to the running gear 5 for driving the running gear 5.

Preferably, a vibration beam is further arranged in front of the walking direction of the operating device and connected with the engine 6; the vibrating beam and the operating device are spaced at a certain distance, and the walking direction and the walking speed of the vibrating beam and the operating device are the same. When the engine 6 starts to operate, the vibration beam starts to operate simultaneously with the operation device.

Preferably, the bottom of the vibration beam is provided with a sliding shoe capable of adjusting the gradient. In the actual construction process, the slope of the sliding shoes can be adjusted according to the concrete thickness requirement, and the relative position between the lowest position of the sliding shoes and the ultrahigh-performance concrete is changed, so that the concrete pouring elevation is controlled.

Preferably, the vibration beam is composed of 2.0m standard segments, the main girder 1 is composed of 1.5m length standard segments, and a pair of connection members 2 are arranged for every two standard segments of the main girder 1.

The embodiment of the utility model provides a theory of operation as follows:

and (3) preliminarily paving the ultrahigh-performance concrete on the bridge floor, and preliminarily raking the concrete in a manual material raking mode. According to construction requirements, sliding shoes are installed at the bottom of the vibration beam, and the concrete pavement thickness is controlled through the sliding shoes.

And starting the engine 6, starting the vibration beam and the operating device to work, starting the operating device to walk, enabling the vibration beam to walk synchronously, and enabling the walking direction and speed of the vibration beam and the operating device to be completely consistent.

The vibrating beam in the front of the walking direction is used for leveling ultra-high-performance concrete, and workers on the operating device platform behind the vibrating beam are subjected to leakage detection and gap filling at the rear.

A rolling shaft 4 is arranged at the rear side adjacent to the traveling direction of the platform 3, and when the operating device travels forwards, the plastic film above the rolling shaft 4 rolls freely and covers the ultrahigh-performance concrete.

A worker above the platform 3 presses the film in a vaporific watering mode, so that the film is tightly attached to the surface of the concrete, the concrete is moisturized and maintained, and meanwhile, the health-care film is prevented from being blown up by wind.

The utility model discloses the vibration of ultra high performance concrete, the problem of paving and maintenance have not only been solved for vibration, paving and the three step of maintenance can the synchronous operation, have realized the continuous integration of operation, have promoted the efficiency of construction of each step greatly, have saved manpower and materials.

The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.

Claims

1. An operating device suitable for thin-layer ultrahigh-performance concrete construction is characterized by comprising a main truss (1) and at least two groups of connecting pieces (2);

two ends of the main truss (1) are respectively provided with a walking mechanism (5) capable of walking along the end wall of the bridge; the connecting piece (2) is connected below the main truss (1), a connecting platform (3) is fixed at the bottom of the connecting piece (2), and the bottom of the platform (3) is higher than the bridge floor and is parallel to the bridge floor; and a rolling shaft (4) provided with a plastic film is arranged above the platform (3) along the transverse bridge direction, and when the operating device walks along the bridge, the plastic film on the rolling shaft (4) rolls and covers the concrete surface of the bridge.

2. The handling device of claim 1, wherein: each group of connecting pieces (2) comprises a transverse rod and two longitudinal rods, the transverse rod is arranged at the bottom end of the main truss (1) along the bridge direction, and the two longitudinal rods are respectively and vertically arranged at the two ends of the transverse rod; one end of each longitudinal rod is connected with one end of the transverse rod, and the other end of each longitudinal rod is connected with the platform (3).

3. The handling device of claim 2, wherein: the connecting pieces (2) are arranged in two groups in parallel, and the plane of each group of connecting pieces (2) is perpendicular to the platform (3).

4. The handling device of claim 3, wherein: the two ends of the rolling shaft (4) are respectively connected with the longitudinal rods of the two groups of connecting pieces (2) on the platform (3), and the rolling shaft (4) is adjacent to the rear side of the walking direction of the platform (3).

5. The handling device of claim 3, wherein: platform (3) top surface is equipped with two spinal branch posts (7), the both ends of roller bearing (4) are fixed in a spinal branch post (7) respectively, and roller bearing (4) are adjacent to the rear side of platform (3) walking direction.

6. The handling device of claim 1, wherein: the width of the platform (3) is larger than that of the main truss.

7. The handling device of claim 1, wherein: the operating device is also provided with an engine (6), and the walking mechanism (5) is connected with the engine (6).

8. The handling device of claim 7, wherein: a vibration beam is further arranged in front of the walking direction of the operating device and connected with the engine (6); the vibration beam and the operation device are spaced at a certain distance, and the walking direction and the walking speed of the vibration beam and the operation device are the same.

9. The handling device of claim 8, wherein: and the bottom of the vibration beam is provided with a sliding shoe capable of adjusting the gradient.

10. The handling device for thin ultra high performance concrete construction as claimed in claim 8 or 9, wherein: the vibration beam is composed of 2.0m standard segments, the main truss (1) is composed of 1.5m standard segments, and a pair of connecting pieces (2) is arranged on each two standard segments of the main truss (1).