CN212771977U - Simple broken line falsework connection structure of cast-in-situ variable-section beam body - Google Patents
Simple broken line falsework connection structure of cast-in-situ variable-section beam body Download PDFInfo
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- CN212771977U CN212771977U CN202021382883.4U CN202021382883U CN212771977U CN 212771977 U CN212771977 U CN 212771977U CN 202021382883 U CN202021382883 U CN 202021382883U CN 212771977 U CN212771977 U CN 212771977U
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- 238000011065 in-situ storage Methods 0.000 title abstract description 4
- 238000005452 bending Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 28
- 238000009434 installation Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 244000035744 Hura crepitans Species 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a simple broken line falsework connecting structure of a cast-in-situ variable-section beam body, which comprises a vertical connecting column, a connecting piece connected on the vertical connecting column, a Bailey beam connected on the upper part of the vertical connecting column, a supporting frame connected on the upper part of the Bailey beam and a corresponding beam body template; the Bailey beam is a linear beam and is in a zigzag shape along the length direction of the beam body to be cast, and a group of vertical braces are connected below the Bailey beam; the Bailey beams are connected at the bending points in an assembling way, are respectively connected with the vertical supports and the vertical connecting columns through bottom supporting and adjusting pieces, and are connected with the templates through top supporting and adjusting pieces. The utility model is beneficial to ensuring the stress of the lower part of the template through the combined arrangement of the vertical connecting column, the vertical support and the support frame; the utility model can ensure the whole fixation through the arrangement of the connecting piece; due to the fact that the Bailey beams are arranged in a broken line shape, adaptive installation is facilitated according to beam body line shapes with different cross sections, installation accuracy is guaranteed, and construction quality is improved; and the joint setting of the bottom support adjusting piece and the top support adjusting piece is favorable for fine adjustment, and the construction precision is ensured.
Description
Technical Field
The utility model belongs to template engineering construction field, in particular to simple broken line falsework connection structure of cast-in-place variable cross-section roof beam body.
Background
With the development of national infrastructure, the construction of continuous beams in bridge engineering is numerous, and the traditional construction of a hanging basket method and the construction of a full framing method have many defects although the application is wide. The large-area support erection by the full-hall support method not only needs a large amount of cost and has certain requirements on geological conditions, but also influences traffic when passing through roads; the construction work surface of the hanging basket method is few, the construction period is long, and the hanging basket method cannot be applied to the construction of the continuous beam with short construction period. In addition, due to the variable cross-section design of the bridge, the lower support needs to be adaptively adjusted according to the line type of the bridge, so that a connection frame body structure which can be conveniently constructed and can adapt to construction according to the line type of the bridge is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cast-in-place variable cross section roof beam body simple broken line falsework connection structure for lower support body and support system's simple and easy installation, connection support body and bearing structure's fixed mounting and applied technical problem such as beiLei roof beam adaptation roof beam body line type when solving variable cross section bridge engineering sky template and setting up.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cast-in-place variable-section beam body simple broken line falsework connecting structure comprises vertical connecting columns connected to one side of a side pier or two sides of a middle pier, connecting pieces connected between the vertical connecting columns and the side pier or between the vertical connecting columns and the middle pier, a Bailey beam connected to the upper part of each vertical connecting column, a support frame connected to the upper part of the Bailey beam, and templates connected to the top of the Bailey beam, the top of the support frame and the side edges at the outer contour line of a beam body to be cast;
the Bailey beam is a linear beam and is in a zigzag shape along the length direction of a beam body to be cast, and a group of vertical braces are connected below the Bailey beam; the Bailey beams are spliced and connected at the bending points, the Bailey beams are respectively connected with the vertical supports and the vertical connecting columns through bottom supporting and adjusting pieces below splicing positions, and the Bailey beams are connected with the templates through top supporting and adjusting pieces above the splicing positions.
Furthermore, the bottom supporting and adjusting part is connected to the top of the vertical connecting column and the top of the vertical support and is arranged in a one-to-one correspondence mode, and the bottom supporting and adjusting part is an adjustable sleeve or a jack.
Furthermore, the bottom support adjusting piece is connected with a bottom cross beam in the vertical direction along the beam body, and the bottom cross beam is detachably connected below the Bailey beam; the included angle of the connecting part between the bottom cross beam and the Bailey beam is not more than 5 degrees, and a lateral baffle is arranged on the side edge of the Bailey beam on the bottom cross beam.
Furthermore, the Bailey beams are assembled at the bending points and connected through connecting plates, bolts or sleeves, and wedge-shaped cushion blocks are further arranged at the bending external corners.
Further, a top cross rod is connected between the top of the Bailey beam and the corresponding template, and the top cross rod is a square wood or steel square pipe; the top cross bars are arranged in the length direction of the template at intervals.
Furthermore, a top support adjusting piece is connected between the top of the Bailey beam and the top cross rod, and the top support adjusting piece is an I-shaped piece, an H-shaped piece or a channel steel.
Furthermore, embedded parts are embedded in the corresponding connecting parts on the side bridge piers and the middle bridge piers in advance and are detachably connected with the connecting parts through the embedded parts; the connecting piece is rod-shaped.
Furthermore, the vertical connecting columns on two sides of the middle bridge pier are at least provided with a group of transverse connecting pieces, and the transverse connecting pieces are arranged on the middle upper parts of the vertical connecting columns.
Furthermore, the vertical braces are arranged at intervals in the length direction of the beam body, the vertical braces adjacent to each other in the length direction of the beam body are detachably connected with transverse connecting pieces, and reinforcing pieces are detachably connected between the vertical braces and the adjacent vertical braces of the beam body; the transverse connecting piece and the reinforcing piece are rod pieces.
Furthermore, the support frame is a net-shaped truss formed by connecting a cross rod, a vertical rod and an inclined rod through fasteners, and the joint of the top of the vertical rod in the support frame and the corresponding template is detachably connected with an adjusting sleeve; the periphery of the support frame is also connected with a surrounding baffle.
The beneficial effects of the utility model are embodied in:
1) the utility model is beneficial to form a frame body and a support system to ensure the stress of the lower part of the template through the combined arrangement of the vertical connecting columns, the vertical supports and the support frame, and the vertical connecting columns, the vertical supports and the support frame are convenient to install and construct, thereby effectively reducing the construction period;
2) the utility model can ensure the whole fixation through the arrangement of the connecting pieces, save large-area treatment foundation for installation and fixation, effectively utilize the pier and reduce the construction cost;
3) the utility model has the advantages that the fold-line-shaped arrangement of the Bailey beams is beneficial to the adaptive installation according to the beam body line type with different cross sections, the installation precision is ensured, the construction quality is improved, and the adjustment of the line type through the bracket due to the parallel arrangement of the Bailey beams is avoided, thereby saving the construction materials and accelerating the construction progress; the bottom support adjusting piece and the top support adjusting piece are jointly arranged, so that the installation of the Bailey beam in the vertical direction can be finely adjusted, and the construction precision is ensured;
in addition, the utility model is easy to implement, can greatly save the construction period and provide the precision and quality of the installation template, and is easy to adapt to the site construction environment; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
FIG. 1 is a construction schematic diagram of a simple broken line connection structure of a cast-in-situ variable cross-section beam body;
FIG. 2 is a partial schematic view of the construction of a simple broken line connection structure of a cast-in-place variable-section beam body;
FIG. 3 is a cross section construction schematic view of a simple broken line connection structure of a cast-in-place variable-section beam body;
FIG. 4 is a cross section partial construction schematic view of a cast-in-place variable cross-section beam body simple broken line connection structure.
Reference numerals: 1-side pier, 2-side foundation, 3-middle pier, 4-middle foundation, 5-vertical connecting column, 6-connecting piece, 7-vertical support, 8-horizontal connecting piece, 9-Bailey beam, 10-reinforcing piece, 11-bottom cross beam, 12-top cross beam, 13-supporting frame, 14-template, 15-enclosure, 16-beam body, 17-bottom support adjusting piece and 18-top support adjusting piece.
Detailed Description
Taking a concrete beam with a certain T-shaped deformation section as an example, as shown in fig. 1 and fig. 2, the concrete beam is the longitudinal direction of a beam body 16; fig. 3 and 4 are cross-sectional views of the bridge. The method comprises the steps of erecting a template 14 through a cast-in-place variable-section beam 16 simple broken line falsework connecting structure and then casting the beam 16, wherein the connecting structure comprises vertical connecting columns 5 connected to one side of a side pier 1 or two sides of a middle pier 3, connecting pieces 6 connected between the vertical connecting columns 5 and the side pier 1 or between the vertical connecting columns 5 and the middle pier 3, a Bailey beam 9 connected to the upper part of the vertical connecting columns 5, a support frame 13 connected to the upper part of the Bailey beam 9 and a template 14 connected to the top, the top and the side of the Bailey beam 9 at the outer contour line of the beam 16 to be cast. Wherein, the top of the supporting frame 13 is the lower surface of the flange plate of the beam body 16.
In this embodiment, a side foundation 2 is connected below the side pier 1, and a middle foundation 4 is connected below the middle pier 3. The side pier 1 and the middle pier 3 are embedded with embedded parts in advance corresponding to the connecting parts 6 and are detachably connected with the connecting parts 6 through the embedded parts; the connecting piece 6 is a steel rod piece, the embedded piece is a steel plate embedded piece, and the steel rod and the steel plate embedded piece are detachably connected through bolts. The vertical connecting columns 5 on two sides of the middle pier 3 are at least provided with a group of transverse connecting pieces 8, and the transverse connecting pieces 8 are arranged on the middle upper parts of the vertical connecting columns 5.
In this embodiment, the vertical braces 7 are steel pipe columns, each steel pipe is 630mm, the wall thickness of each steel pipe is 8mm, the height of the top of each steel pipe is linearly fitted in advance according to the beam 16, the steel pipe column supports are arranged at linear bending points, and the tops of the steel pipe columns are connected with sandboxes. The vertical braces 7 are arranged at intervals in the length direction of the beam body, the vertical braces 7 adjacent to each other in the length direction of the beam body 16 are detachably connected with transverse connecting pieces 8, and reinforcing pieces 10 are detachably connected between the vertical braces 7 adjacent to each other vertically and the beam body 16; the cross connecting piece 8 and the reinforcing piece 10 are both steel rod pieces, and the cross connecting piece 8 and the reinforcing piece 10. The reinforcing member 10 is a diagonal brace for enhancing the overall stability of the support system, and is connected with the vertical brace 7 through a fastener respectively.
In the embodiment, the support frame 13 is a net-shaped truss formed by connecting a transverse steel rod, a vertical steel rod and an inclined steel rod through fasteners, and the connecting part of the top of the vertical steel rod in the support frame 13 and the corresponding template 14 is in threaded connection with an adjusting sleeve; the periphery of the supporting frame 13 is also connected with a surrounding baffle 15.
In the embodiment, the Bailey beam 9 is a linear beam and is in a zigzag shape along the length direction of the beam body 16 to be cast, and a group of vertical braces 7 are connected below the Bailey beam 9; the Bailey beams 9 are assembled at the bending points and connected through connecting plates, bolts or sleeves, and wedge-shaped cushion blocks are further arranged at the bending external corners. A top cross bar 12 is also connected between the top of the Bailey beam 9 and the corresponding template 14, and the top cross bar 12 is a square wood or steel square pipe; the top rails 12 are spaced lengthwise of the form 14. The Bailey beams 9 are connected at the bending points in an assembling way, the Bailey beams 9 are respectively connected with the vertical supports 7 and the vertical connecting columns 5 through bottom supporting and adjusting pieces 17 below the assembling place, and the Bailey beams 9 are connected with the templates 14 through top supporting and adjusting pieces 18 above the assembling place.
In this embodiment, a top support adjusting part 18 is connected between the top of the bailey beam 9 and the top cross bar 12, and the top support adjusting part 18 is an i-shaped part, an H-shaped part or a channel steel. The bottom supporting and adjusting parts 17 are connected to the tops of the vertical connecting columns 5 and the vertical supports 7 and are arranged in a one-to-one correspondence mode, and the bottom supporting and adjusting parts 17 are adjustable sleeves or jacks. The bottom support adjusting piece 17 is vertically connected with a bottom cross beam 11 along the beam body 16, and the bottom cross beam 11 is detachably connected below the Bailey beam 9; the included angle of the connecting part between the bottom cross beam 11 and the Bailey beam 9 is not more than 5 degrees, and a lateral baffle is arranged on the bottom cross beam 11 at the side edge of the Bailey beam 9. Wherein, the bottom beam 11 is an I-shaped steel beam, an H-shaped steel beam or a channel steel.
With reference to fig. 1 to 4, a construction method of a cast-in-place variable-section beam body simple fold line falsework connecting structure is further described, which comprises the following specific steps:
step one, according to the address investigation condition, a plane control network is established on a construction site, the area of the control network is larger than the construction range, and the influence on the change of a control point during construction is eliminated.
Secondly, pouring a strip foundation in the construction range, embedding a steel plate on the strip foundation in advance, and respectively connecting the vertical connecting column 5 with the middle bridge pier 3 or the side bridge pier 1 through a connecting piece 6; then, the vertical support 7 is installed, a strip foundation is poured on the lower portion of the vertical support 7, and the vertical support 7 is connected with the reinforcing piece 10 through the transverse connecting piece 8, so that the supporting integrity of the vertical support 7 is guaranteed.
Thirdly, welding a sandbox on the top of the vertical support 7, wherein the sandbox is manufactured uniformly according to the height of 30cm or is subjected to adaptive adjustment according to the site, a bottom support adjusting piece 17 and a bottom cross beam 11 are installed on the upper portion of the sandbox, and a Bailey beam 9 is installed on the upper portion of the bottom cross beam 11; the bottom support adjusting piece 17 is an adjustable sleeve or a jack and is controlled electrically or manually.
Fourthly, the Bailey beams 9 are arranged in a zigzag shape according to the line shape of the cast-in-place beam body 16, the flower windows connected with the Bailey beams 9 at the folding points are opened, the Bailey beams 9 on the two sides of the folding points are crossed with each other, the flower windows are made of channel steel at the folding points, and the oblique Bailey beams 9 are connected through bolts.
And fifthly, mounting a top support adjusting part 18 and a top cross bar 12 on the upper part of the Bailey beam 9, mounting battens and templates 14 on the top cross bar 12 corresponding to the bottom of the cast-in-place beam body 16, mounting support frames 13 corresponding to the side edges and the flanges of the cast-in-place beam body 16, mounting the templates 14 on the side edges and the flanges of the cast-in-place beam body 16 through the support frames 13, and arranging a fence 15 on the top of the support frames 13.
Step six, after the beam body 16 is poured and maintained, the connecting structure is dismantled, and the dismantling is carried out in a staged circulating mode according to the principle of 'longitudinal bridge symmetrical balance, horizontal bridge basic synchronization and first assembling and then disassembling' during the dismantling; the Bailey beam 9 is dropped on the lower part of the beam body 16 by using a hoisting device, the lower part structure is firstly dismantled, and then the Bailey beam 9 is lowered to the ground by using the hoisting device to be dismantled; when the Bailey beam 9 is hoisted, holes are drilled in the flange plates of the beam body 16, transverse prestressed pipelines are avoided during drilling, the Bailey beam 9 is hoisted on the beam body 16 by utilizing finish-rolled deformed steel bars and screw jacks, the lower structure of the Bailey beam is firstly disassembled, and then the Bailey beam 9 is lowered to the ground to be disassembled.
The utility model discloses save large tracts of land ground treatment than full hall support method, the construction degree of difficulty is little, and is with low costs, and is less than string basket method time limit for a project. Adopt the curve of bailey beam 9 to arrange adaptation roof beam bottom pitch arc, roof beam bottom formwork 14 directly lays on top horizontal pole 12, when saving the scaffold, also saves and sets up the scaffold time, compares with traditional full hall support, and template 14 directly lays and has increased support overall stability in top horizontal pole 12 top. The elevation of the template 14 is formed by the vertical supports 7, the bottom supporting and adjusting pieces 17 and the top supporting and adjusting pieces 18, so that a large amount of time for determining the elevation can be saved.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A cast-in-place variable-section beam body simple broken line falsework connecting structure is characterized by comprising vertical connecting columns (5) connected to one side of a side pier (1) or two sides of a middle pier (3), connecting pieces (6) connected between the vertical connecting columns (5) and the side pier (1) or between the vertical connecting columns (5) and the middle pier (3), a Bailey beam (9) connected to the upper part of the vertical connecting columns (5), a support frame (13) connected to the upper part of the Bailey beam (9), and templates (14) connected to the top of the Bailey beam (9), the top of the support frame (13) and the side edges at the outer contour line of a beam body (16) to be cast;
the Bailey beam (9) is a linear beam and is in a zigzag shape along the length direction of a beam body to be cast, and a group of vertical braces (7) are connected below the Bailey beam (9); the Bailey beams (9) are spliced and connected at the bending points, the Bailey beams (9) are respectively connected with the vertical supports (7) and the vertical connecting columns (5) through bottom supporting and adjusting pieces (17) below the splicing positions, and the Bailey beams (9) are connected with the templates (14) through top supporting and adjusting pieces (18) above the splicing positions.
2. A cast-in-place variable section beam body simple broken line falsework connecting structure as claimed in claim 1, characterized in that the bottom supporting and adjusting pieces (17) are connected to the top of the vertical connecting column (5) and the vertical support (7) and are arranged in one-to-one correspondence, and the bottom supporting and adjusting pieces (17) are adjustable sleeves or jacks.
3. A cast-in-place variable cross-section beam body simple broken line falsework connecting structure as claimed in claim 2, characterized in that the bottom support adjusting piece (17) is connected with a bottom cross beam (11) vertically along the beam body (16), the bottom cross beam (11) is detachably connected below the bailey beam (9); the included angle of the connecting part between the bottom cross beam (11) and the Bailey beam (9) is not more than 5 degrees, and a lateral baffle is arranged on the side edge of the Bailey beam (9) on the bottom cross beam (11).
4. The simple broken line falsework connecting structure of the cast-in-place variable-section beam body as claimed in claim 1, characterized in that the Bailey beams (9) are assembled at the bending points and connected through connecting plates, bolts or sleeves, and wedge-shaped cushion blocks are further arranged at the bending external corners.
5. The cast-in-place variable-section beam body simple broken line falsework connecting structure as claimed in claim 4, characterized in that a top cross bar (12) is further connected between the top of the Bailey beam (9) and the corresponding template (14), and the top cross bar (12) is a square wood or steel square pipe; the top cross bars (12) are arranged in the length direction of the template (14) at intervals.
6. The cast-in-place variable-section beam body simple broken line falsework connecting structure as claimed in claim 5, characterized in that a top supporting and adjusting piece (18) is connected between the top of the Bailey beam (9) and the top cross bar (12), and the top supporting and adjusting piece (18) is an I-shaped piece, an H-shaped piece or a channel steel.
7. The cast-in-place variable-section beam body simple broken line falsework connecting structure is characterized in that embedded parts are embedded in advance in corresponding connecting parts (6) on the side pier (1) and the middle pier (3) and are detachably connected with the connecting parts (6) through the embedded parts; the connecting piece (6) is rod-shaped.
8. A cast-in-place variable cross-section beam body simple broken line falsework connecting structure as claimed in claim 1, characterized in that the vertical connecting columns (5) at both sides of the middle bridge pier (3) are provided with at least one group of cross connecting pieces (8), and the cross connecting pieces (6) are arranged at the middle upper parts of the vertical connecting columns (5).
9. A cast-in-place variable cross-section beam body simple broken line falsework connecting structure as claimed in claim 8, characterized in that the vertical braces (7) are arranged at intervals in the length direction of the beam body (16), the vertical braces (7) adjacent to each other along the length direction of the beam body (16) are detachably connected with cross connecting pieces (8), and reinforcing pieces (10) are detachably connected between the vertical braces (7) adjacent to the beam body (16); the transverse connecting piece (8) and the reinforcing piece (10) are rod pieces.
10. The cast-in-place variable-section beam body simple broken line falsework connecting structure as claimed in claim 1, characterized in that the supporting frame (13) is a net truss formed by connecting cross rods, vertical rods and diagonal rods through fasteners, and the connecting part of the top of the vertical rod in the supporting frame (13) and the corresponding template (14) is detachably connected with an adjusting sleeve; the periphery of the support frame (13) is also connected with a surrounding baffle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021382883.4U CN212771977U (en) | 2020-07-15 | 2020-07-15 | Simple broken line falsework connection structure of cast-in-situ variable-section beam body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021382883.4U CN212771977U (en) | 2020-07-15 | 2020-07-15 | Simple broken line falsework connection structure of cast-in-situ variable-section beam body |
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| CN212771977U true CN212771977U (en) | 2021-03-23 |
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| CN202021382883.4U Expired - Fee Related CN212771977U (en) | 2020-07-15 | 2020-07-15 | Simple broken line falsework connection structure of cast-in-situ variable-section beam body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016411A (en) * | 2021-10-29 | 2022-02-08 | 中铁十九局集团第五工程有限公司 | Movable bent cap support structure and bent cap construction system |
-
2020
- 2020-07-15 CN CN202021382883.4U patent/CN212771977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016411A (en) * | 2021-10-29 | 2022-02-08 | 中铁十九局集团第五工程有限公司 | Movable bent cap support structure and bent cap construction system |
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