CN210597039U - Cast-in-place box girder wet joint concrete placement system - Google Patents
Cast-in-place box girder wet joint concrete placement system Download PDFInfo
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- CN210597039U CN210597039U CN201921216496.0U CN201921216496U CN210597039U CN 210597039 U CN210597039 U CN 210597039U CN 201921216496 U CN201921216496 U CN 201921216496U CN 210597039 U CN210597039 U CN 210597039U
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Abstract
The utility model relates to a bridge construction field aims at solving the problem of the easy stifled pipe of the wet seam of current bridge when adopting the pump sending, provides a wet seam concrete placement system of cast-in-place box girder, and it includes two bearing support, lifting rope, vertical chute, a plurality of edge chute's extending direction interval distribution's chute support and correspond respectively a plurality of horizontal chutes of each wet seam of bridge. Wherein, the two bearing brackets are arranged at intervals along the longitudinal direction of the bridge; the lifting rope is connected between the two bearing brackets; the longitudinal chute is arranged along the longitudinal direction of the bridge and is suspended below the lifting rope; the longitudinal chute is a part of pipe fitting with an upward opening and a U-shaped cross section; and the height of the longitudinal chute is gradually reduced along the conveying direction; the chute bracket supports a longitudinal chute; the transverse chute is communicated with the longitudinal chute. The beneficial effects of the utility model are that conveniently realize wet seam concrete placement, can avoid stifled pipe problem, and be convenient for observe the performance of concrete.
Description
Technical Field
The utility model relates to a bridge construction field particularly, relates to a wet seam concrete placement system of cast-in-place box girder.
Background
The wet joint of the bridge generally adopts the cementing or concrete joint, can't use the undersides to hoist in the more complicated, higher area of pier of topography, only adopt behind the platform transport to the beam body position and install wet joint template, the board bundle reinforcing bar pours flows such as wet joint concrete after integral hoisting. The lifting appliance blocks the traffic when the bridge girder erection machine completely lifts the prefabricated sections in the air, so that the pouring wet joint can be poured only through the top pump and the ground pump. In the process of pouring the concrete by using the ground pump, because the strength of the wet joint concrete is high, the pipe blockage is caused due to poor pouring time and performance control of the high-strength concrete, and the pump pipe needs to be completely inspected and dismantled after the pipe blockage, so that the concrete of the whole vehicle can not be used. When the top pump is adopted for pouring, the position reached by the pump is limited due to the influence of a lifting appliance of a bridge girder erection machine and the influence of the clearance of the bridge girder erection machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wet seam concrete placement system of cast-in-place box girder to solve the problem of stifled pipe easily when the wet seam of current bridge adopts the pump sending.
The embodiment of the utility model is realized like this:
a cast-in-place box beam wet joint concrete placement system, comprising:
the two bearing supports are arranged at intervals along the longitudinal direction of the bridge;
the lifting rope is connected between the two bearing supports and surrounds the bridge in a suspended manner;
the longitudinal chute is arranged along the longitudinal direction of the bridge and is suspended below the lifting rope; the longitudinal chute is a part of pipe fitting with an upward opening and a U-shaped cross section and is used for conveying wet-joint concrete along the longitudinal direction; and the height of the longitudinal chute is gradually reduced along the conveying direction of the longitudinal chute;
the chute supports are distributed at intervals along the extending direction of the chutes and are arranged on the bridge floor and vertically support the longitudinal chutes; and
the transverse chutes are respectively corresponding to the wet joints of the bridge, and are communicated with the longitudinal chutes and used for transversely conveying wet concrete to the wet joints; the transverse chute is a part of pipe fitting with an upward opening and a U-shaped cross section.
When the wet seam concrete placement system of cast-in-place box girder in this scheme used, the concrete passed through the vertical chute of U type and carried to wet seam through horizontal chute again along the vertical transport of bridge, conveniently realizes wet seam concrete placement, can avoid the problem of the stifled pipe of day pump sending concrete, and is convenient for observe the performance of concrete.
In one embodiment, the longitudinal chute is in the shape of a PVE tube with a diameter of 600mm cut in half along a longitudinal section; the transverse chute is in a shape that a PVE pipe with the diameter of 3000mm is cut into half along a longitudinal section. The transverse chute and the longitudinal chute are obtained by cutting a common PVE pipe into halves, and are simple and practical to process.
In one embodiment, the load-bearing support comprises two vertical rods and a cross beam, the two vertical rods are respectively supported by inclined supporting rods on two sides, the cross beam is connected between the two vertical rods, and a connecting portion for connecting the lifting rope is arranged in the middle of the length direction of the cross beam.
In one embodiment, the chute support comprises two spaced vertical rods and a horizontal cross rod connected between the two vertical rods, and the upper ends of the vertical rods extend out of the horizontal cross rod to form a U-shaped accommodating opening; the longitudinal chute is supported on the horizontal cross rod and is positioned between the extending parts of the two vertical rods. The upper end of the chute support forms a U-shaped containing opening, and the problem of limiting the transverse displacement of the longitudinal chute is solved in addition to the function of vertically supporting the longitudinal chute. For example, in a turning position, the flow of concrete has a tendency of pushing the longitudinal chute to displace along the transverse direction, and the extending section of the vertical rod extending out of the horizontal cross rod can control the tendency, so that the transverse overlarge displacement of the longitudinal chute is avoided.
In one embodiment, inclined supporting rods are respectively arranged on two sides of the vertical rod; the upper ends of the inclined supporting rods are supported on the side faces of the vertical rods and extend downwards in an inclined mode to enable the lower ends of the inclined supporting rods to be supported on the bridge deck. The diagonal brace is favorable for supporting the vertical rod, and the stability of the vertical rod is improved.
In one embodiment, the longitudinal chute is suspended from the lifting rope by a plurality of hangers distributed lengthwise of the lifting rope; the hanging piece is of an inverted V-shaped steel bar structure, the tip end of the hanging piece is connected to the hanging rope, and the two ends of the hanging piece are respectively connected to the two sides of the longitudinal chute with the U-shaped cross section. The arrangement of the V-shaped steel bar structure can properly realize the connection between the longitudinal chute and the lifting rope, and ensure that the longitudinal chute keeps the U-shaped shape.
The number of the longitudinal chutes is two, and the longitudinal chutes are respectively distributed on two sides of the bridge in the width direction; correspondingly, the two groups of the load-bearing supports for supporting the longitudinal chutes are four, and the two groups of the lifting ropes for suspending the longitudinal chutes are two; the chute supports used for supporting the longitudinal chute are provided with two rows; the transverse chute is connected between the two longitudinal chutes. The two longitudinal chutes are arranged to increase the conveying efficiency of the concrete in the longitudinal direction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front view of a cast-in-place box beam wet joint concrete pouring system in an embodiment of the present invention;
fig. 2 is a top view of a cast-in-place box beam wet joint concrete pouring system in an embodiment of the present invention;
fig. 3 is a schematic structural view of a longitudinal chute in an embodiment of the present invention;
fig. 4 is a schematic structural view of a transverse chute in an embodiment of the present invention;
fig. 5 is a schematic structural view of a load-bearing support in an embodiment of the present invention;
figure 6 is another perspective view of a load bearing bracket in an embodiment of the present invention;
fig. 7 is a schematic structural view of a chute support in an embodiment of the present invention;
figure 8 is another perspective view of a chute support in an embodiment of the invention;
fig. 9 is a structural view of the longitudinal chute being suspended from the lifting rope by the hangers.
Icon: 3-a load-bearing support; 1-lifting a rope; 2-a longitudinal chute; 6-chute supports; 5-a transverse chute; 11-diagonal brace rods; 12-a vertical rod; 13-a cross beam; 14-a connecting portion; 22-a vertical rod; 23-a horizontal cross bar; 24-an accommodating port; 21-diagonal brace rods; 4-hanging parts.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1 and 2, the present embodiment provides a cast-in-place box girder wet joint concrete pouring system, which includes two bearing supports 3, a lifting rope 1, a longitudinal chute 2, a plurality of chute supports 6 spaced apart along the extending direction of the chute, and a plurality of transverse chutes 5 corresponding to the wet joints of the bridge, respectively. Wherein, the two bearing brackets 3 are arranged at intervals along the longitudinal direction of the bridge; the lifting rope 1 is connected between the two bearing brackets 3 and surrounds the bridge in a suspended manner; the longitudinal chute 2 is arranged along the longitudinal direction of the bridge and is suspended below the lifting rope 1; the longitudinal chute 2 is a part of pipe fitting with an upward opening and a U-shaped cross section and is used for conveying wet-joint concrete along the longitudinal direction; and the height of the longitudinal chute 2 is gradually reduced along the conveying direction; the chute bracket 6 is arranged on the bridge floor and vertically supports the longitudinal chute 2; the transverse chute 5 is communicated with the longitudinal chute 2 and is used for transversely conveying wet concrete to a wet joint; the transverse chute 5 is a partial tube of U-shaped cross-section with the opening facing upwards. The specific structure of the longitudinal chutes 2 and the transverse chutes 5 is shown in fig. 3 and 4.
When the wet seam concrete placement system of cast-in-place box girder in this scheme used, the concrete was carried to wet seam concrete placement through horizontal chute 5 again along the vertical transport of bridge through the vertical chute 2 of U type, can avoid the problem of the stifled pipe of day pump sending concrete, and is convenient for observe the performance of concrete.
In this embodiment, two longitudinal chutes 2 are optionally provided and respectively distributed on both sides of the bridge in the width direction; correspondingly, two groups of four load-bearing supports 3 for supporting the longitudinal chute 2 and two groups of lifting ropes 1 for suspending the longitudinal chute 2 are provided; two rows of chute supports 6 for supporting the longitudinal chutes 2; the transverse chute 5 is connected between the two longitudinal chutes 2. The provision of two longitudinal chutes 2 increases the efficiency of the concrete transfer in the longitudinal direction.
Referring to fig. 3 and 4, in one embodiment, the longitudinal chute 2 is in the shape of a PVE tube of 600mm diameter cut in half along a longitudinal section; the transverse chute 5 is in the shape of a PVE pipe with the diameter of 3000mm after being cut into half along a longitudinal section. The transverse chute 5 and the longitudinal chute 2 are obtained by cutting a common PVE pipe into halves, and the processing is simple and practical. The longitudinal chutes 2 and the transverse chutes can be communicated in a way that the side openings of the longitudinal chutes 2 are connected and communicated.
Referring to fig. 5 and 6, in one embodiment, the load-bearing support 3 comprises two vertical rods 12 supported by two diagonal support rods 11 respectively, and a cross beam 13 connected between the two vertical rods 12, and a connecting part 14 for connecting the lifting rope 1 is arranged at the middle position in the length direction of the cross beam 13.
Referring to fig. 7 and 8, in one embodiment, the chute support 6 comprises two spaced vertical bars 22 and a horizontal cross bar 23 connected between the two vertical bars 22, and the upper ends of the vertical bars 22 extend above the horizontal cross bar 23 to form a U-shaped receiving opening 24; the longitudinal chute 2 is supported above the horizontal cross bar 23 and between the extensions of the two vertical bars 22. The upper end of the chute bracket 6 forms a U-shaped accommodating opening 24, and besides the function of vertically supporting the longitudinal chute 2, the chute bracket also has the problem of limiting the transverse displacement of the longitudinal chute 2. For example, in a bridge turning, the concrete flow will have a tendency to push the longitudinal chute 2 to displace in the transverse direction, and the extension of the vertical rods 22 extending beyond the horizontal cross bars 23 can control this tendency to avoid excessive transverse displacement of the longitudinal chute 2. Optionally, the inclined supporting rods 21 are respectively arranged on two sides of the vertical rod 22; the upper ends of the diagonal braces 21 are supported on the sides of the vertical bars 22 and extend diagonally downward to support the lower ends thereof on the deck. The diagonal brace 21 facilitates the support of the vertical bar 22, increasing its stability.
Referring to fig. 1 and 9, in one embodiment, the longitudinal chute 2 is suspended from the lifting rope 1 by a plurality of hangers 4 distributed along the length of the lifting rope 1; the hanging part 4 is an inverted V-shaped steel bar structure, the tip end of the hanging part is connected with the hanging rope 1, and the two ends of the hanging part are respectively connected with the two sides of the longitudinal chute 2 with the U-shaped cross section. The arrangement of the V-shaped reinforcing steel bar structure can properly realize the connection between the longitudinal chute 2 and the lifting rope 1, and ensure that the longitudinal chute 2 keeps the U-shaped shape.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a wet seam concrete placement system of cast-in-place box girder which characterized in that includes:
the two bearing supports are arranged at intervals along the longitudinal direction of the bridge;
the lifting rope is connected between the two bearing supports and surrounds the bridge in a suspended manner;
the longitudinal chute is arranged along the longitudinal direction of the bridge and is suspended below the lifting rope; the longitudinal chute is a part of pipe fitting with an upward opening and a U-shaped cross section and is used for conveying wet-joint concrete along the longitudinal direction; and the height of the longitudinal chute is gradually reduced along the conveying direction of the longitudinal chute;
the chute supports are distributed at intervals along the extending direction of the chutes and are arranged on the bridge floor and vertically support the longitudinal chutes; and
the transverse chutes are respectively corresponding to the wet joints of the bridge, and are communicated with the longitudinal chutes and used for transversely conveying wet concrete to the wet joints; the transverse chute is a part of pipe fitting with an upward opening and a U-shaped cross section.
2. The cast-in-place box beam wet joint concrete pouring system according to claim 1, wherein:
the longitudinal chute is in a shape that a PVE pipe with the diameter of 600mm is cut into half along a longitudinal section;
the transverse chute is in a shape that a PVE pipe with the diameter of 3000mm is cut into half along a longitudinal section.
3. The cast-in-place box beam wet joint concrete pouring system according to claim 1, wherein:
the bearing support comprises two vertical rods and a cross beam, the vertical rods are respectively supported by inclined support rods on two sides, the cross beam is connected between the two vertical rods, and a connecting portion used for connecting the lifting rope is arranged in the middle of the length direction of the cross beam.
4. The cast-in-place box beam wet joint concrete pouring system according to claim 1, wherein:
the chute support comprises two spaced vertical rods and a horizontal cross rod connected between the two vertical rods, and the upper ends of the vertical rods extend out of the horizontal cross rod to form a U-shaped accommodating opening;
the longitudinal chute is supported on the horizontal cross rod and is positioned between the extending parts of the two vertical rods.
5. The cast-in-place box beam wet joint concrete pouring system according to claim 4, wherein:
inclined support rods are arranged on two sides of the vertical rod respectively; the upper ends of the inclined supporting rods are supported on the side faces of the vertical rods and extend downwards in an inclined mode to enable the lower ends of the inclined supporting rods to be supported on the bridge deck.
6. The cast-in-place box beam wet joint concrete pouring system according to claim 1, wherein:
the longitudinal chute is hung on the lifting rope through a plurality of hanging pieces distributed along the length direction of the lifting rope;
the hanging piece is of an inverted V-shaped steel bar structure, the tip end of the hanging piece is connected to the hanging rope, and the two ends of the hanging piece are respectively connected to the two sides of the longitudinal chute with the U-shaped cross section.
7. The cast-in-place box beam wet joint concrete pouring system according to claim 1, wherein:
the number of the longitudinal chutes is two, and the longitudinal chutes are respectively distributed on two sides of the bridge in the width direction; correspondingly, the two groups of the load-bearing supports for supporting the longitudinal chutes are four, and the two groups of the lifting ropes for suspending the longitudinal chutes are two; the chute supports used for supporting the longitudinal chute are provided with two rows;
the transverse chute is connected between the two longitudinal chutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921216496.0U CN210597039U (en) | 2019-07-29 | 2019-07-29 | Cast-in-place box girder wet joint concrete placement system |
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| CN201921216496.0U CN210597039U (en) | 2019-07-29 | 2019-07-29 | Cast-in-place box girder wet joint concrete placement system |
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| CN210597039U true CN210597039U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396934A (en) * | 2019-07-29 | 2019-11-01 | 中铁八局集团昆明铁路建设有限公司 | A kind of wet joint concrete casting system of cast-in-situ box girder and method |
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2019
- 2019-07-29 CN CN201921216496.0U patent/CN210597039U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396934A (en) * | 2019-07-29 | 2019-11-01 | 中铁八局集团昆明铁路建设有限公司 | A kind of wet joint concrete casting system of cast-in-situ box girder and method |
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