CN210262732U - Movable formwork construction trolley structure suitable for sudden change of beam height - Google Patents
Movable formwork construction trolley structure suitable for sudden change of beam height Download PDFInfo
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- CN210262732U CN210262732U CN201920733297.0U CN201920733297U CN210262732U CN 210262732 U CN210262732 U CN 210262732U CN 201920733297 U CN201920733297 U CN 201920733297U CN 210262732 U CN210262732 U CN 210262732U
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Abstract
The utility model relates to a bridge construction technical field specifically indicates a moving die carrier construction trolley structure suitable for high sudden change of roof beam. The device comprises a sliding rail arranged on a pier bracket along the transverse direction, a lower trolley frame connected with the sliding rail in a sliding manner, a transverse moving oil cylinder fixed between the sliding rail and the lower trolley frame, an upper trolley frame and a vertical jack; the upper trolley frame is positioned above the lower trolley frame and is supported on the lower trolley frame through a plurality of vertical upright posts with adjustable lengths, and a slide way is arranged on the upper trolley frame; the vertical jack shell is connected to the lower trolley frame, and the pushing end penetrates through the upper trolley frame in the vertical direction and is used for pushing the movable trolley frame. The utility model discloses a platform truck reforms transform simple structure can reform transform original platform truck structure through increasing platform truck frame and stand structure, makes its construction method who adapts to the high sudden change of moving die carrier roof beam, and cost low cost does not receive the influence of bridge below structure, and the security is high.
Description
Technical Field
The utility model relates to a bridge construction technical field specifically indicates a moving die carrier construction trolley structure suitable for high sudden change of roof beam.
Background
With the development of bridge construction technology, the diversity of bridge structures also puts higher requirements on special equipment for bridge construction. The movable mould frame has strong adaptability and can meet the construction of the cast-in-place box girder with equal section or wide width in various complex environments. The movable formwork is adjusted in vertical height through a trolley installed on a pier so as to adapt to the arrangement of formworks with different elevations. The existing trolley structure generally comprises a trolley frame, the trolley frame is connected to sliding rails arranged on a pier bracket in the transverse direction in a sliding mode and driven to move in the transverse direction through a transverse oil cylinder between the sliding rails and the trolley frame, and sliding rails are arranged on two transverse sides of the trolley frame. During the use, moving die carrier is located and is advanced along the slide on the slide, through the alternative action of vertical hydro-cylinder, sideslip hydro-cylinder and indulge the hydro-cylinder that moves, can realize moving die carrier's horizontal, fore-and-aft regulation, through increasing wedge bed hedgehopping web and realize the altitude variation of case roof beam minim scope. Although the change of box girder height can be realized to current platform truck structure, when to the continuous box girder of roof beam height sudden change and bridge floor, because the bottom plate reduces suddenly, the movable mould frame can't be in succession strides the construction. In the construction for solving the problem of variable-beam-height cast-in-place box beams at the present stage, the construction is generally continued by erecting a support or integrally lowering a movable formwork to enable the movable formwork to descend by a certain height after the movable formwork strides over and then installing a pier-side bracket again. The support method is adopted, so that the requirement on the foundation is high, the construction cost is high, the construction period for continuously transferring the jack to integrally transfer the jack is long, and the safety risk is high.
Disclosure of Invention
The utility model aims at solving the above-mentioned background art not enough, provide a moving die carrier construction trolley structure suitable for roof beam height sudden change.
The technical scheme of the utility model is that: a movable formwork construction trolley structure suitable for beam height mutation comprises slide rails arranged on a pier bracket along the transverse direction, a lower trolley frame connected with the slide rails in a sliding manner, and a transverse oil cylinder fixed between the slide rails and the lower trolley frame,
the method is characterized in that: the lifting device also comprises an upper trolley frame and a vertical jack; the upper trolley frame is positioned above the lower trolley frame and is supported on the lower trolley frame through a plurality of vertical upright posts with adjustable lengths, and a slide way is arranged on the upper trolley frame; the vertical jack shell is connected to the lower trolley frame, and the pushing end penetrates through the upper trolley frame in the vertical direction and is used for pushing the movable trolley frame.
And the stand column comprises a plurality of unit cushion blocks, and the unit cushion blocks are sequentially overlapped along the vertical direction to form a vertical supporting structure for supporting the upper trolley frame.
And furthermore, the upper end and the lower end of each unit cushion block are provided with lug plates extending outwards, and adjacent unit cushion blocks are fixedly connected into a whole through bolts penetrating through the lug plates.
A cross brace is arranged between the two upright posts; and two ends of the cross brace are respectively fixed on the two unit cushion blocks of the two upright posts.
And furthermore, at least two groups of finish-rolled deformed steel bars are arranged between the upper trolley frame and the lower trolley frame, each group comprises two finish-rolled deformed steel bars which are respectively arranged at the longitudinal ends or the transverse ends of the upper trolley frame and the lower trolley frame, and the upper end and the lower end of each finish-rolled deformed steel bar respectively penetrate through the upper trolley frame and the lower trolley frame and are fixedly connected with the upper trolley frame and the lower trolley frame.
The device further comprises a base which is placed on the pier bracket and is positioned in the lower trolley frame; and the shell of the vertical jack is fixed at the upper end of the base.
Further, a wall attaching structure is arranged on the upper trolley frame; the wall attaching structure is a horizontal supporting structure with one end fixed on the transverse inner side of the upper bogie frame and the other end supported on the side part of the pier.
The utility model has the advantages that: 1. the trolley structure can be modified on the original basis by adding the upper trolley frame and the upright post structure on the original lower trolley frame so as to adapt to the condition of beam height sudden change and ensure that the movable mould frame has enough vertical height adjusting capability, and the modification structure is simple, convenient to operate and high in safety;
2. the vertical column structure is formed by combining the plurality of unit cushion blocks, the length of the vertical column is convenient to change, the length of the vertical column can be adjusted by changing the number of the unit cushion blocks, the vertical height between the upper trolley frame and the lower trolley frame is adjusted, the adjusting mode is simple, and the safety is high;
3. the cross brace structure is arranged between the stand columns, so that the stability of the stand columns in the adjusting process is ensured, and the problem that the stand columns overturn is avoided;
4. the base is added to heighten the vertical jack, so that the problem that the height of the vertical jack is insufficient to vertically adjust the movable formwork due to heightening of the slide way is avoided;
5. through increasing the wall structure that attaches, guarantee the stability of platform truck in accommodation process, the problem of avoiding appearing transversely toppling takes place.
The utility model discloses a platform truck reforms transform simple structure can reform transform original platform truck structure through increasing platform truck frame and stand structure, makes its construction method who adapts to the high sudden change of moving die carrier roof beam, and cost low cost does not receive the influence of bridge below structure, and the security is high.
Drawings
FIG. 1: the utility model discloses a schematic diagram of a trolley structure and pier installation structure;
FIG. 2: the utility model discloses a front view of a trolley structure;
FIG. 3: the utility model discloses a side view of the trolley structure;
FIG. 4: the structure diagram of step 1 in this embodiment;
FIG. 5: the structure diagram of step 2 in this embodiment;
FIG. 6: the structure diagram of step 3 in this embodiment;
FIG. 7: the structure diagram of step 4 in this embodiment;
FIG. 8: the structure diagram of step 5 in this embodiment;
FIG. 9: the structure diagram of step 6 in this embodiment;
FIG. 10: the structure of step 7 in this embodiment;
FIG. 11: the structure of step 8 in this embodiment;
wherein: 1-a slide rail; 2, a lower trolley frame; 3, transversely moving the oil cylinder; 4, mounting a trolley frame; 5-a vertical jack; 6, a slideway; 7-unit cushion block; 8, horizontal bracing; 9-finish rolling the deformed steel bar; 10-a base; 11-wall attachment structure; 12-a carrier; 13-moving the mould frame.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
The trolley structure of this embodiment is a modification of an existing trolley structure, as shown in fig. 1 to 3, the trolley of this embodiment is installed on a pier bracket 12, a slide rail 1 arranged along a transverse bridge direction is provided on the bracket 12, a lower trolley frame 2 is connected to the slide rail 1 in a sliding manner, a transverse moving oil cylinder 3 for driving the lower trolley frame 2 to move transversely is provided between the slide rail 1 and the lower trolley frame 2, actually, the lower trolley frame 2, the slide rail 1 and the transverse moving oil cylinder 3 of this embodiment are all structures in the existing trolley, the lower trolley frame 2 is a frame structure, and an installation support of a longitudinal moving oil cylinder for pushing the longitudinal moving of the moving trolley frame is further installed on the lower trolley frame 2.
This embodiment is provided with the upper bogie frame 4 on lower bogie frame 2, and upper bogie frame 4 is square frame construction, and upper bogie frame 4 is located bogie frame 2 directly over, and upper bogie frame 4 supports on lower bogie frame 2 through four adjustable length vertical columns of arranging upper bogie frame 4 four corners in separately, as shown in fig. 2 ~ 3, the stand includes a plurality of unit cushion blocks 7, and a plurality of unit cushion blocks 7 stack in proper order along the vertical bearing structure who supports upper bogie frame 4. The upper end and the lower end of each unit cushion block 7 are provided with lug plates extending outwards, and the adjacent unit cushion blocks 7 are fixedly connected into a whole through bolts penetrating through the lug plates. And a cross brace 8 is arranged between the two upright posts, and two ends of the cross brace 8 are respectively fixed on the two unit cushion blocks 7 of the two upright posts.
In order to ensure the structural stability between the upper trolley frame 4 and the lower trolley frame 2, at least two groups of finish-rolled deformed steel bars 9 are arranged between the upper trolley frame 4 and the lower trolley frame 2, each group comprises two finish-rolled deformed steel bars 9 which are respectively arranged at the longitudinal ends or the transverse ends of the upper trolley frame 4 and the lower trolley frame 2, and the upper end and the lower end of each finish-rolled deformed steel bar 9 respectively penetrate through the upper trolley frame 4 and the lower trolley frame 2 and are fixedly connected with the upper trolley frame 4 and the lower trolley frame 2. After the height adjustment is completed, the upper bogie frame 4 and the lower bogie frame 2 are fixed by fixing the finish-rolled deformed steel bars 9.
Two slide ways 6 which are arranged at intervals along the transverse direction are arranged at the upper end of the upper trolley frame 4, and the movable trolley frame is placed on the slide ways 6. In other words, the slide 6 is vertically adjusted, so that the vertical position of the vertical jack 5 needs to be adjusted, as shown in fig. 1, in this embodiment, a base 10 is installed on a bracket 12, a housing of the vertical jack 5 is fixed at the upper end of the base 10, and when the traversing cylinder 3 pushes the lower carriage 2 to traverse, the base 10 is fixed on the lower carriage 2 through a temporary fixing structure to be driven transversely.
In order to ensure the structural stability of the upper bogie frame 4, the present embodiment is provided with the wall attachment structure 11 at the lateral side portion of the upper bogie frame 4, and the wall attachment structure 11 is a horizontal support structure having one end fixed to the lateral inner side of the upper bogie frame 4 and the other end supported at the lateral portion of the pier.
When in use, the method for adjusting the elevation of the trolley comprises the following steps: the movable formwork 13 is pushed by the vertical jack 5, the weight of the movable formwork 13 is transferred to the vertical jack 5, then the finish rolling deformed steel bar 9 is loosened, the unit cushion blocks 7 are removed, the vertical jack 5 is descended to enable the movable formwork 13 to descend to the slide ways 6, descending adjustment of the movable formwork is completed, and similarly, when the movable formwork needs to be heightened, the movable formwork firstly pushes up the vertical jack 5, then the unit cushion blocks 7 are added, then the vertical jack 5 descends, and rising adjustment is completed.
Aiming at the elevation adjustment of the movable formwork, a practical application of a specific structure is provided, as shown in fig. 4, a beam body between the pier number 25 and the pier number 27 is an inclined plane with a gradient which gradually rises, the pier number 27 is a transition pier, and the modified trolley structure of the embodiment is used for the pier number 27.
During construction, step 1, as shown in fig. 4, the No. 27 pier is used as a transition pier for elevation adjustment, the No. 27 pier bracket is installed according to a beam-making elevation of 50m, and then the upper trolley frame 4 and the vertical jack 5 are lifted to meet the requirement of 30 m-span box beam construction;
step 2: as shown in fig. 5, the movable formwork 13 is driven to move to pier No. 27, and a formwork is installed for beam body pouring;
step 3, as shown in fig. 6, after the beam body is stabilized, the template is removed;
and 4, step 4: as shown in fig. 7, after the 30m span box girder construction is completed, all external formworks are removed and a 28 # pier bracket is installed according to the construction elevation of the 50m span movable formwork 13;
and 5: as shown in fig. 8, the longitudinal slope of the main longitudinal beam of the movable mould frame 13 is adjusted by removing the unit cushion blocks 7 of No. 27 pier part, so that the slide way surfaces of No. 25-28 pier dollies are on the same straight line, and the movable mould frame 13 can conveniently stride to No. 28 piers;
step 6: as shown in fig. 9, the movable mould frame 13 is completely moved to the pier number 28 to complete spanning;
and 7: as shown in fig. 10, after the span is completed, the unit cushion blocks 7 of the rest platform of the pier No. 27 are continuously removed, and the movable formwork 13 is adjusted to 50m to span the longitudinal slope of the beam;
and 8: and finally installing the bottom die cushion high seat and all the external die systems to complete construction conversion as shown in FIG. 11.
As shown in fig. 1, the longitudinal direction of the present embodiment refers to the direction perpendicular to fig. 1, which is the bridge-following direction of the beam, the lateral direction of the present embodiment refers to the left-right direction of fig. 1, which is the bridge-following direction of the beam, and the vertical direction of the present embodiment refers to the up-down direction of fig. 1, which is the up-down direction of the beam.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A movable formwork construction trolley structure suitable for beam height mutation comprises sliding rails (1) arranged on pier brackets (12) along the transverse direction, a lower trolley frame (2) connected with the sliding rails (1) in a sliding mode, and a transverse oil cylinder (3) fixed between the sliding rails (1) and the lower trolley frame (2),
the method is characterized in that: the lifting device also comprises an upper trolley frame (4) and a vertical jack (5); the upper trolley frame (4) is positioned above the lower trolley frame (2) and is supported on the lower trolley frame (2) through a plurality of vertical upright posts with adjustable lengths, and a slide way (6) is arranged on the upper trolley frame (4); the shell of the vertical jack (5) is connected to the lower trolley frame (2), and the pushing end penetrates through the upper trolley frame (4) along the vertical direction and is used for pushing the movable trolley frame.
2. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 1, wherein: the stand includes a plurality of unit cushion blocks (7), and a plurality of unit cushion blocks (7) stack in proper order along vertical and form the vertical bearing structure who supports upper trolley frame (4).
3. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 2, wherein: the upper end and the lower end of each unit cushion block (7) are provided with lug plates extending outwards, and adjacent unit cushion blocks (7) are fixedly connected into a whole through bolts penetrating through the lug plates.
4. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 2 or 3, wherein: a cross brace (8) is arranged between the two upright posts; and two ends of the cross brace (8) are respectively fixed on the two unit cushion blocks (7) of the two upright posts.
5. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 1, wherein: at least two groups of finish rolling deformed steel bars (9) are arranged between the upper trolley frame (4) and the lower trolley frame (2), each group comprises two finish rolling deformed steel bars (9) which are respectively arranged at the longitudinal two ends or the transverse two ends of the upper trolley frame (4) and the lower trolley frame (2), and the upper end and the lower end of each finish rolling deformed steel bar (9) respectively penetrate through the upper trolley frame (4) and the lower trolley frame (2) and are fixedly connected with the upper trolley frame and the lower trolley frame.
6. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 1, wherein: the device also comprises a base (10) which is placed on the pier bracket (12) and is positioned in the lower trolley frame (2); the shell of the vertical jack (5) is fixed at the upper end of the base (10).
7. The mobile formwork construction trolley structure suitable for sudden change of beam height as claimed in claim 1, wherein: a wall attaching structure (11) is arranged on the upper trolley frame (4); the wall attaching structure (11) is a horizontal supporting structure with one end fixed on the transverse inner side of the upper trolley frame (4) and the other end supported on the side part of the pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733297.0U CN210262732U (en) | 2019-05-21 | 2019-05-21 | Movable formwork construction trolley structure suitable for sudden change of beam height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733297.0U CN210262732U (en) | 2019-05-21 | 2019-05-21 | Movable formwork construction trolley structure suitable for sudden change of beam height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210262732U true CN210262732U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920733297.0U Active CN210262732U (en) | 2019-05-21 | 2019-05-21 | Movable formwork construction trolley structure suitable for sudden change of beam height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210262732U (en) |
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2019
- 2019-05-21 CN CN201920733297.0U patent/CN210262732U/en active Active
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