CN218643162U - Inner mold crossbeam of box girder - Google Patents
Inner mold crossbeam of box girder Download PDFInfo
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- CN218643162U CN218643162U CN202223067490.6U CN202223067490U CN218643162U CN 218643162 U CN218643162 U CN 218643162U CN 202223067490 U CN202223067490 U CN 202223067490U CN 218643162 U CN218643162 U CN 218643162U
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- section
- chamfer
- box girder
- length adjustment
- cell wall
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Abstract
The utility model relates to a bridge engineering field, in particular to case roof beam centre form crossbeam, including horizontal segment, chamfer section and length adjustment mechanism, the connection can be dismantled respectively at the both ends of horizontal segment the chamfer section, length adjustment mechanism set up in the horizontal segment and/or chamfer section carries out the length adjustment of horizontal segment through length adjustment mechanism, carries out the length adjustment of chamfer section through length adjustment mechanism to the construction of adaptation case roof beam variable cross section inner box structure has improved case roof beam construction precision, has guaranteed that the case roof beam inner box line type standard is pleasing to the eye.
Description
Technical Field
The utility model relates to a bridge engineering field, in particular to case roof beam centre form crossbeam.
Background
The basic concept of the box girder structure is that the bridge superstructure is an integral hollow girder, and the parts of the hollow girder (beam ribs, roof and floor) as a whole participate in the stress simultaneously when the main load passes through any position on the bridge. The construction of the box-type bridge can save materials, and the box girder is of a thin-wall structure, so that the torsional strength of the bridge is improved.
Case roof beam, continuous steel structure bridge and box structures such as strength nature skeleton concrete arch bridge, inner box often are the polygon cross-section, have the condition of variable cross-section moreover, and the mould that the case roof beam construction needs to be used, including centre form, die block, moulding-die and outside mould, in box bridge construction process, often need adjust the crossbeam length of inner mould to the requirement of case for the variable cross-section construction in the adaptation, to the construction of the inner box of variable cross-section, the inner membrance crossbeam adjustment method who adopts at present does: 1. the cross beams with various sizes are used, but the sizes of the cross beams of the inner box concrete pressing die are various; 2. join in marriage to the crossbeam of constructing at present and cut and weld, can lead to material reuse rate low, and because the crossbeam length adjustment difficulty of centre form, when leading to the crossbeam to set up the error great, the last fashioned inner box produces wrong platform phenomenon.
Therefore, a technical scheme is urgently needed at present to solve the technical problems of low material recycling rate and large beam arrangement error during variable cross-section inner box construction
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the technical problems that the material reuse rate is low and the arrangement error of the cross beam is large during construction of the variable cross-section inner box are solved.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a case roof beam centre form crossbeam, includes horizontal segment, chamfer section and length adjustment mechanism, the connection can be dismantled respectively at the both ends of horizontal segment chamfer section, length adjustment mechanism set up in the horizontal segment and/or chamfer section.
The utility model discloses a case roof beam centre form crossbeam carries out the length adjustment of horizontal segment through length adjustment mechanism, carries out the length adjustment of chamfer section through length adjustment mechanism to the construction of adaptation case roof beam variable cross section inner box structure has improved case roof beam construction precision, and it is pleasing to the eye to have guaranteed that case roof beam inner box line type standard.
As the preferred scheme of the utility model, the horizontal segment with the chamfer section is articulated to be connected. The end part of the horizontal section is provided with two parallel hinged plates in an extending way, the connecting part of the chamfer section and the horizontal section is connected with a groove formed by the hinged plates in a matching way, hinged holes are formed in the hinged plates, connecting holes are formed in the connecting part and are communicated with the connecting holes in an aligning way, and a connecting screw penetrates through the hinged holes and the connecting holes to form a hinged part; the chamfering section can move in a small range around the hinge portion, the horizontal section and the chamfering section can rotate around the hinge portion mutually through the hinge connection of the horizontal section and the chamfering section, the inner membrane is convenient to mount and demount, meanwhile, the cross beam can be split into multiple sections in a bolt connection mode, the cross beam is convenient to carry, and construction personnel can carry to the next pouring section conveniently.
As the utility model discloses an optimal scheme, the horizontal segment includes the double pin channel-section steel, two the channel-section steel mouth meets to the mouth and constitutes the strip structure spare that the cross-section is "mouthful" type. The weight of the horizontal section can be reduced by the mouth-shaped hollow structure, so that the horizontal section is more convenient to deploy.
As the preferred scheme of the utility model, the horizontal segment includes a plurality of horizontal segments, the both ends that length adjustment mechanism adjusted the direction are connected horizontal segment. And a length adjusting mechanism is arranged to realize the adjustable length of the horizontal section.
As the utility model discloses an optimal selection scheme, the chamfer section is including the double pin channel-section steel, two the channel-section steel meets back to back and constitutes the strip connecting piece of cross-section for "worker" type. The I-shaped section enables the horizontal section and the chamfer section to be more conveniently hinged and connected and the disassembly and the assembly to be more convenient.
As the utility model discloses a preferred scheme, the chamfer section includes a plurality of chamfer segments, length adjustment mechanism adjusts the both ends of direction and connects the chamfer segment. And a length adjusting mechanism is arranged to realize the adjustability of the length of the chamfer section.
As the utility model discloses a preferred scheme, length adjustment mechanism includes guide way and regulating part, the regulating part can be followed the spacing removal of guide way. The length adjusting mechanism realizes length adjustment through displacement of the adjusting piece in the guide groove.
As the utility model discloses an optimal scheme, the guide way includes first cell wall and second cell wall, the second cell wall with first cell wall parallel arrangement, first cell wall with set up the limiting plate between the second cell wall, the regulating part with limiting plate limit connection. The first groove wall and the second groove wall form a guide groove, guide the moving direction of the adjusting piece, and are provided with limiting plates for supporting the adjusting length of the adjusting piece.
As the utility model discloses a preferred scheme, the regulating part includes screw rod and two at least adjusting nut, the limiting plate is provided with the through-hole, the screw rod runs through the through-hole, two at least adjusting nut distributes the both sides of limiting plate. The nut is connected with the screw rod in a matched mode, the relative position of the screw rod and the limiting plate is adjusted through the nut, so that the length of the accurate control length adjusting mechanism is adjusted, and the nut is matched with the limiting plate to limit the adjusting piece in the length adjusting direction.
As the preferred embodiment of the present invention, the length adjusting mechanism further comprises at least one guide plate, and the guide plate is connected to the first groove wall and the second groove wall. The guide plate is connected with the edge positions of the first groove wall and the second groove wall, and the guide plate is used for limiting the displacement of the adjusting piece in the non-length direction, so that the stability of the length adjusting mechanism is improved.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a case roof beam centre form crossbeam carries out the length adjustment of horizontal segment through length adjustment mechanism, carries out the length adjustment of chamfer section through length adjustment mechanism to adapt to the construction of case roof beam variable cross section inner box structure, improved case roof beam construction precision, guaranteed that case roof beam inner box line type standard is pleasing to the eye;
2. the utility model discloses a case roof beam centre form crossbeam in case roof beam work progress, can be under construction to the variable cross section inner box through quick adjustment horizontal segment and chamfer segment length, improved the efficiency of construction, and crossbeam repeatedly usable after adjusting has good economic value.
Drawings
FIG. 1 is a schematic sectional view of a cross beam in a box girder;
fig. 2 is a schematic top view of the horizontal section of the present invention;
FIG. 3 is a schematic side view of the horizontal section of the present invention;
fig. 4 is a schematic top view of the guide groove of the present invention;
fig. 5 is a schematic side view of the guide groove of the present invention;
fig. 6 is a schematic top view of the adjusting member of the present invention;
fig. 7 is a schematic front view of the chamfer section of the present invention;
fig. 8 is a schematic top view of the chamfer section of the present invention.
Icon:
5-a horizontal section, 6-a chamfer section, 7-a length adjusting mechanism, 8-a guide groove, 9-a limiting plate, 10-an adjusting piece, 11-a first groove wall, 12-a second groove wall, 13-a through hole and 14-a guide plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
The box girder inner mold crossbeam shown in fig. 1-8 comprises a horizontal section 5, a chamfer section 6 and a length adjusting mechanism 7, wherein two ends of the horizontal section 5 are detachably connected with the chamfer section 6 respectively, and the length adjusting mechanism 7 is arranged on the horizontal section 5 and/or the chamfer section 6.
Specifically, horizontal segment 5 is the cross-section that the welding of double pin steel notch is to the mouth formed and is "mouthful" type strip structure, chamfer section 6 is the strip structure that the welding of double pin steel notch back-to-back formed and is "worker" type.
Specifically, the horizontal section 5 is formed by splicing two horizontal sections, and the length adjusting mechanism 7 is arranged at the splicing position.
Specifically, chamfer section 6 is formed for two sections chamfer subsection concatenations, and the concatenation department sets up length adjustment mechanism 7, keep away from the chamfer subsection of horizontal segment 5 is provided with the angle of buckling.
Specifically, the tip of horizontal segment 5 extends and sets up two articulated slabs that are parallel to each other, and chamfer section 6 is connected with the connecting portion that horizontal segment 5 is connected and the recess cooperation that the articulated slab formed, and it has the hinge joint to open on the articulated slab, and it has the connecting hole to open on the connecting portion, and the hinge joint aligns the intercommunication with the connecting hole, uses connecting screw to run through hinge joint and connecting hole, forms articulated portion.
Preferably, length adjustment mechanism 7 includes guide way 8 and regulating part 10, guide way 8 includes first cell wall 11 and second cell wall 12, second cell wall 12 with first cell wall 11 parallel arrangement, first cell wall 11 with set up limiting plate 9 between the second cell wall 12, regulating part 10 with limiting plate 9 limit connection, first cell wall 11 and second cell wall 12 constitute guide way 8, guide the direction of motion of regulating part 10, set up limiting plate 9, can carry out length adjustment's control to length adjustment mechanism 7.
Preferably, regulating part 10 includes screw rod and two at least adjusting nut, limiting plate 9 is provided with through-hole 13, the screw rod runs through-hole 13, two at least adjusting nut distributes limiting plate 9's both sides use nut and screw rod cooperation to connect and realize limiting displacement to accurate control length adjustment mechanism 7 carries out length adjustment, the screw rod is the screw rod that excels in.
Preferably, the length adjustment mechanism 7 further comprises at least one guide plate 14, and the guide plate 14 connects the first groove wall 11 and the second groove wall 12. The guide plate 14 limits the displacement of the adjusting member 10 only in the length adjustment direction.
Preferably, the cross beam is used for box girder structure construction of the stiffened framework concrete arch bridge.
When the box girder inner mold crossbeam is used, an inner mold panel and battens are firstly assembled into a single unit, large-area pavement is carried out, and then matched cutting pavement is carried out at the positions of chamfers and widened parts; then adjusting the length of the effective length of the high-strength screw rod to realize the extension and contraction of the cross beam, thereby adapting to different inner box chamfer structures; and finally, the inner die panel is prevented from floating upwards by connecting the pull rod with a flat connecting rod arranged on the cross beam, the mold expansion is controlled to exceed the square, the flat section or the chamfer section can rotate around the hinge part mutually by hinging the horizontal section and the chamfer section, so that the inner die is convenient to mount and dismount, and meanwhile, the cross beam can be split into multiple sections by using a bolt connection mode, so that the cross beam is convenient to carry and is convenient for construction personnel to carry to the next pouring section.
Example 2
The structure of the box girder inner die cross beam is the same as that of the first embodiment, and is different from that of the first embodiment in that the first groove wall 11 is provided with the first threaded hole, the second groove wall 12 is provided with the second threaded hole, when the length adjusting mechanism 7 is adjusted to a required length, bolts are arranged in the first threaded hole and the second threaded hole, and after being locked by the bolts, the bolts are in contact with a horizontal section or a chamfer section provided with the adjusting piece 10, so that the displacement of the adjusting piece 10 in the length direction is better limited.
Example 3
The structure of the box girder inner mold cross beam of the embodiment is the same as that of the first embodiment, and is different from the first embodiment in that the horizontal section is an integrally formed structural member, and the chamfer section is an integrally formed structural member.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (8)
1. The box girder internal mold crossbeam is characterized by comprising a horizontal section (5), chamfer sections (6) and a length adjusting mechanism (7), wherein two ends of the horizontal section (5) are respectively detachably connected with the chamfer sections (6), and the length adjusting mechanism (7) is arranged on the horizontal section (5) and/or the chamfer sections (6); the length adjusting mechanism (7) comprises a guide groove (8) and an adjusting piece (10), and the adjusting piece (10) can move along the guide groove (8) in a limiting manner; guide way (8) include first cell wall (11) and second cell wall (12), second cell wall (12) with first cell wall (11) parallel arrangement, first cell wall (11) with set up limiting plate (9) between second cell wall (12), regulating part (10) with limiting plate (9) limit connection.
2. A box girder inner mould crossbeam according to claim 1, characterised in that the horizontal section (5) is hinged to the chamfered section (6).
3. A box girder inner mold crossbeam according to claim 1, characterised in that the horizontal section (5) comprises double-spliced channel steels, and the two channel steels are connected in an opening-to-opening manner to form a strip-shaped structural member with an opening-shaped section.
4. A box girder inner mould crossbeam according to claim 1, characterised in that the horizontal section (5) comprises a plurality of horizontal segments, and both ends of the length adjustment mechanism (7) in the adjustment direction are connected to the horizontal segments.
5. A box girder inner mould cross beam according to claim 1, wherein the chamfer section (6) comprises double-spliced channel steel, and the two channel steel are connected back to form a strip-shaped connecting piece with an I-shaped section.
6. A box girder inner mould crossbeam according to claim 1, characterised in that the chamfer section (6) comprises a plurality of chamfer sections, and the two ends of the adjusting direction of the length adjusting mechanism (7) are connected with the chamfer sections.
7. A box girder inner mould crossbeam according to claim 1, characterised in that the adjusting piece (10) comprises a screw and at least two adjusting nuts, the limiting plate (9) is provided with a through hole (13), the screw penetrates through the through hole (13), and the at least two adjusting nuts are distributed on both sides of the limiting plate (9).
8. A box girder inner mould crossbeam according to claim 1, characterised in that the length adjustment mechanism (7) further comprises at least one guiding plate (14), the guiding plate (14) connecting the first and second groove walls (11, 12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223067490.6U CN218643162U (en) | 2022-11-18 | 2022-11-18 | Inner mold crossbeam of box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223067490.6U CN218643162U (en) | 2022-11-18 | 2022-11-18 | Inner mold crossbeam of box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218643162U true CN218643162U (en) | 2023-03-17 |
Family
ID=85498912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223067490.6U Active CN218643162U (en) | 2022-11-18 | 2022-11-18 | Inner mold crossbeam of box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218643162U (en) |
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2022
- 2022-11-18 CN CN202223067490.6U patent/CN218643162U/en active Active
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