CN218081208U - Temporary jig frame supporting structure for steel box girder viaduct - Google Patents
Temporary jig frame supporting structure for steel box girder viaduct Download PDFInfo
- Publication number
- CN218081208U CN218081208U CN202222294935.8U CN202222294935U CN218081208U CN 218081208 U CN218081208 U CN 218081208U CN 202222294935 U CN202222294935 U CN 202222294935U CN 218081208 U CN218081208 U CN 218081208U
- Authority
- CN
- China
- Prior art keywords
- box girder
- pole setting
- skeleton unit
- rod
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a bridge construction technical field specifically discloses an interim bed-jig bearing structure of steel case roof beam overpass, including a plurality of support element of treating support case roof beam direction interval setting, the support element includes the pole setting, and the medial surface welding of pole setting has otic placode and the bolt hole owing to connect the member, the bottom and the inside pre-buried steel sheet fixed connection of basal plane of pole setting, bolted connection has the positive skeleton unit of the vertical connection of multiunit between two adjacent pole settings, and a set of positive skeleton unit comprises the first down tube bolted connection that three horizontal first horizontal poles and two slants set up, by the negative skeleton unit of multiunit in the side of support element, negative skeleton unit comprises the second down tube welded fastening that two horizontal second horizontal poles and two slants set up. The aim at of this patent is solved when supporting the case roof beam, the not good problem of stability effect of support.
Description
Technical Field
The utility model relates to a bridge construction technical field, in particular to interim bed-jig bearing structure of steel case roof beam overpass.
Background
Along with the increase of the design mode of the elevated station house of the high-speed railway station, the municipal supporting facility road has more and more design modes of connecting an elevated bridge and a station house drop platform, more and more elevated bridge steel box girders are used, the steel box girders have large span, and the steel box girders need to be temporarily fixed in the construction process as a welding stabilizing measure.
For example, in patent publication No. CN213702357U, a modularized steel box girder jig frame is disclosed, which comprises a plurality of jig frame units arranged at the bottom of a steel box girder along the length direction of the steel box girder to be assembled; each jig frame unit comprises two box girder bracket grooves which are parallel to each other and are oppositely arranged at two sides of the bottom of the steel box girder to be assembled, and two edges of the bottom of the steel box girder to be assembled are respectively embedded in the box girder bracket grooves, matched with the box girder bracket grooves and erected on a base surface through a support column arranged at the bottom of the box girder bracket grooves; two adjacent bed-jig units can be dismantled and connect, and the case roof beam holds in the palm the groove and can dismantle with the support column and be connected. In the utility model, the whole steel box girder moulding bed is divided into a plurality of moulding bed units, thereby being suitable for steel box girders with different lengths; each jig frame unit comprises two box girder brackets which are separated from each other, so that the jig frame unit is suitable for steel box girders with different widths; the box girder bracket is detachably connected with the support column at the bottom, thereby being suitable for steel box girders with different shapes.
Above-mentioned scheme has structural defect, when supporting the case roof beam temporarily, the bottom plate is as the support piece with the contact of basal plane, because the area of contact of bottom plate and basal plane is little, though there is the polylith bottom plate to support, but the supporting effect is not very stable, in case the bottom plate produces rocks, the supporting effect of case roof beam can greatly reduced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a temporary bed-jig bearing structure of steel case roof beam overpass solves when supporting the case roof beam, the not good problem of stability effect of support.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an interim bed-jig bearing structure of steel case roof beam overpass, includes a plurality of support element along treating that support case roof beam direction interval sets up, and support element includes the pole setting, and the medial surface welding of pole setting has otic placode and the bolt hole owing to connect the member, the bottom and the inside pre-buried steel sheet fixed connection of basal plane of pole setting, bolted connection has the positive skeleton unit of the vertical connection of multiunit between two adjacent pole settings, and a set of positive skeleton unit comprises three horizontal first horizontal poles and the first down tube that two slants set up, and the first horizontal pole both ends of constituteing positive skeleton unit are passed through the bolt and are connected with two adjacent pole settings respectively, by multiunit negative skeleton unit in support element's side, negative skeleton unit comprises the second down tube that two horizontal second horizontal poles and two slants set up, and the second horizontal pole and the second down tube both ends of constituteing negative skeleton unit are connected with two adjacent pole settings respectively through the welding.
The principle of the scheme is as follows:
concrete is poured on the foundation surface, embedded steel plates are placed in the concrete, the concrete is welded with the embedded steel plates through the vertical rods, then the multiple groups of regular skeleton units are connected with the vertical rods through bolts, a quilting frame structure is formed, and the self stability of the structure is guaranteed. The upright rods are used as main rod pieces for supporting stress, the positive framework units and the negative framework units are used as connection points of the upright rods, and through stress analysis of the steel box girder, the whole bed-jig is stressed on concrete and pre-buried steel plates, so that the stress stability of the steel box girder is guaranteed.
The beneficial effect that this scheme produced is:
1. through with place in advance in the concrete pre-buried board fixed connection for whole bed-jig stress surface is concrete and pre-buried board, has promoted the intensity of support.
2. Be connected with the pole setting through positive negative skeleton unit to form quilting structure, can strengthen the stability of pole setting.
Further, there is the brace table owing to place the bed-jig on the top of pole setting through bolted connection, has the bracing owing to connect the pole setting in the welding of brace table both sides tip, and welded connection brace table and pole setting are passed through at the both ends of bracing, can increase the stability of brace table.
Furthermore, there is a tie rod in the middle of two adjacent sets of support units through bolted connection, and the tie rod is located the top position of a set of bonesetting frame unit, uses multiunit tie rod to connect two adjacent sets of support units according to the length of bed-jig, makes the support that supports the bed-jig form wholly to the adaptation is to the support effect of bed-jig.
Further, be connected with at the top of bonesetting frame unit and strengthen the unit, strengthen the unit and be connected through the lateral wall of bolt and pole setting, strengthen the unit and include the third down tube that a slant set up and the third horizontal pole that transversely sets up, use to strengthen the unit and can prolong and consolidate on the basis of bonesetting frame unit.
Furthermore, the top of the negative skeleton unit is also connected with a reinforcing unit for reinforcing the stability performance, and the negative skeleton unit is extended and reinforced on the side surface.
Further, the vertical rods are split into multiple sections, two adjacent vertical rods are connected through the welding flange plates and the bolts, the vertical rods can be added and deleted according to actual conditions on site, and the heights of the jig frames can be adjusted by connecting the multiple sections of vertical rods through the bolts.
Drawings
FIG. 1 is a front view of the bracket of the present invention;
FIG. 2 is a side view of the bracket of the present invention;
FIG. 3 is a schematic view of a first connecting plate according to the present invention;
FIG. 4 is a schematic view of a second connection plate according to the present invention;
fig. 5 is a schematic view of the rod member of the present invention.
Reference numerals in the drawings of the specification include:
the device comprises a support table 1, a vertical rod 2, a transverse pull rod 3, a first cross rod 4, a first inclined rod 4-1, a third cross rod 5, a third inclined rod 5-1, a second cross rod 6, a second inclined rod 6-1 and an inclined strut 7.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in fig. 1, the diagonal braces are provided on both right and left sides of the floor of the support base 1 as a direction reference.
The embodiment is basically as shown in the attached figure 1:
a temporary jig frame supporting structure for a steel box girder viaduct is composed of a support for supporting a box girder jig frame, wherein the support is placed on a foundation surface which is tamped, the foundation surface is the ground, an embedded steel plate is placed on the foundation surface and is a Q235 steel plate, the embedded steel plate is not drawn in the attached drawing, C30 concrete is poured on the foundation surface, after the concrete is dried, the bottom of a vertical rod 2 is welded with the embedded steel plate, a connecting plate for connecting rod pieces is welded on the surface of the vertical rod 2, the rod pieces are general names of all cross rods, inclined rods and transverse pull rods which are used for connection in the attached drawing, the connecting plates are divided into two types, as shown in attached drawings 3 and 4, one type is that three rod pieces can be connected on one connecting plate, the other type is that one rod piece is connected on one connecting plate, the rod pieces are connected through high-strength bolts, and the bolts are connected through M20 x 55 (TS 10.9) high-strength bolts.
The support comprises two sets of supporting units, and a set of supporting unit comprises four vertical poles 2 that just weld with the built-in board, and pole 2 is provided with two sections, links through the bolt between two sections pole 2 and connects, and the quantity of pole 2 can add and delete according to the demand of on-the-spot bed-jig support height. Use the front and back two sides of support as the example, there are two sets of positive skeleton units through bolted connection between two pole settings 2, a set of positive skeleton unit is formed by three horizontal first horizontal poles 4 and the down tube that two slopes set up with pole setting 2 bolted connection, the size of first horizontal pole 4 is 2371mm 90mm, the size of first down tube 4-1 is 2408mm 90mm, contained angle between first down tube 4-1 and the first horizontal pole 4 is 30, contained angle between first down tube 4-1 and the pole setting 2 is 60, use same first pole setting 2 between the positive skeleton unit of two sets of concatenations, under the effect of guaranteeing the supporting force, the use of material has also been saved in the time of saving space.
As shown in the attached drawing 2, two groups of negative framework units are connected to the left side surface and the right side surface of one group of supporting units through bolts, only one group of negative framework units is shown in the attached drawing 2, one group of negative framework units is formed by welding two second cross rods 6 and two second inclined rods 6-1 with an upright post 2, after the left end and the right end of the two second cross rods 6 are welded and fixed with the upright post, the two second inclined rods 6-1 are respectively connected with the upright post in an inclined manner, and the inclination angle of the second inclined rods 6-1 and the upright post 2 is 45 degrees; the quilting structure is formed through the combination of positive skeleton unit and negative skeleton unit, guarantees the stability of support, and negative skeleton unit is used for connecting the side of pole setting 2, and positive skeleton unit is used for connecting the front of pole setting 2, and positive skeleton unit and the concatenation of negative skeleton unit form complete support, and the size of the second horizontal pole 6 of negative skeleton unit is 2495mm, and the size of second down tube 6-1 is 2782mm.
Taking the front of the support as an example, the spliced bone-setting unit and the support of the support table 1 are connected with a reinforcing unit through bolts, the reinforcing unit is composed of a third cross rod 5 and a third inclined rod 5-1, the reinforcing unit can prolong the length of the support and provide strong supporting strength, an included angle between the third inclined rod 5-1 and the vertical rod 2 is 60 degrees, the size of the third inclined rod 5-1 of the reinforcing unit is 2325mm 90mm, and the size of the third cross rod 5 is 2141mm 90mm.
As shown in the attached figure 2, a reinforcing unit is also arranged between the negative framework unit of the support and the support table 1, and the arrangement shape, the connection mode and the number of the rod pieces of the reinforcing unit at the top of the negative framework unit are consistent with those of the reinforcing unit at the top of the positive framework unit.
The welding has bracing 7 between brace table 1 and pole setting 2, and the contained angle between bracing 7 and the pole setting 2 is 45, uses bracing 7 to increase the stability of bed-jig on brace table 1.
The middle part of the upright stanchion 2 is provided with two sections, flange plates are respectively welded at the connection positions of the two sections of upright stanchions 2, the two sections of upright stanchions 2 are vertically connected through connecting bolts in the flange plates, and the height of the supporting platform 1 is adjusted by adding the upright stanchions 2 according to the on-site conditions.
The middle parts of the two adjacent groups of supporting units are connected with a cross pull rod 3 through bolts, the two groups of supporting units are connected to form a support through the cross pull rod 3, and therefore the overall support is formed, and the supporting effect on the jig frame is greatly improved in stability.
The specific implementation process is as follows:
before a jig frame is supported, pre-buried steel plates are placed and fixed on a foundation surface, concrete is poured on the pre-buried steel plates of the foundation surface, the pre-buried steel plates are used for being connected with the vertical rods 2, after the concrete is solidified, the bottom ends of the vertical rods 2 and the pre-buried steel plates are welded into a whole, according to the supporting height required by the jig frame, a flange plate at the bottom end of the other vertical rod 2 is butted at the top end of the vertical rod 2 connected with the pre-buried plate through bolts, then a first cross rod 4 and a second cross rod are connected with a connecting plate connected with the vertical rods 2 through bolts to form a positive skeleton unit, then a second cross rod and a second inclined rod are welded on the side surface of the vertical rod 2 to form a negative skeleton unit, a third cross rod 5 and a third inclined rod 5-1 are welded on the side surface of a support, the third cross rod 5 and the third inclined rod 5-1 are connected with the front surface of the support through bolts to form a reinforcing unit, a cross pull rod 3 is connected between two support units formed in an assembled mode, and the two groups of support units are used for supporting the jig frame on a support table 1.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a interim bed-jig bearing structure of steel case roof beam overpass, includes a plurality of support element that set up along treating support case roof beam direction interval, and support element includes the pole setting, and the medial surface welding of pole setting has otic placode and bolt hole owing to connect the member, its characterized in that: the bottom of pole setting and the inside pre-buried steel sheet fixed connection of basal plane, bolted connection has the positive skeleton unit of the vertical connection of multiunit between two adjacent pole settings, and a set of positive skeleton unit comprises the first down tube bolted connection of three horizontal first horizontal poles and two slant settings, by the multiunit burden skeleton unit in the side of support element, the second down tube welded fastening that the burden skeleton unit set up by two horizontal second horizontal poles and two slants constitutes.
2. The temporary jig frame supporting structure for the steel box girder viaduct of claim 1, wherein: the top of pole setting has owing to place the brace table of bed-jig through bolted connection, has owing to connect the bracing of pole setting in the welding of brace table both sides tip.
3. The temporary jig frame supporting structure for the steel box girder viaduct of claim 1, characterized in that: the middle parts of the two adjacent groups of supporting units are connected with a transverse pull rod through bolts, and the transverse pull rod is positioned at the top of one group of the bone-setting frame units.
4. The temporary jig frame supporting structure for the steel box girder viaduct of claim 1, wherein: the top of the skeleton-setting unit is connected with a reinforcing unit, the reinforcing unit is connected with the side wall of the upright rod through a bolt, and the reinforcing unit comprises a third inclined rod and a third transverse rod, wherein the third inclined rod is obliquely arranged, and the third transverse rod is transversely arranged.
5. The temporary jig frame supporting structure for the steel box girder viaduct bridge as claimed in claim 4, wherein: and the top of the negative skeleton unit is also connected with a reinforcing unit for reinforcing the stability.
6. The temporary jig frame supporting structure for the steel box girder viaduct of claim 1, characterized in that: the vertical rods are split into multiple sections, and the adjacent two sections of vertical rods are connected through welding flange plates and bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222294935.8U CN218081208U (en) | 2022-08-30 | 2022-08-30 | Temporary jig frame supporting structure for steel box girder viaduct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222294935.8U CN218081208U (en) | 2022-08-30 | 2022-08-30 | Temporary jig frame supporting structure for steel box girder viaduct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218081208U true CN218081208U (en) | 2022-12-20 |
Family
ID=84450450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222294935.8U Active CN218081208U (en) | 2022-08-30 | 2022-08-30 | Temporary jig frame supporting structure for steel box girder viaduct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218081208U (en) |
-
2022
- 2022-08-30 CN CN202222294935.8U patent/CN218081208U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103410102A (en) | H-shaped double column pier wide-bridge-surface cantilever temporary consolidation structure and construction method thereof | |
| CN211775609U (en) | Integrated form scaffold of independent post roof beam outer frame high-rise building | |
| CN103866692A (en) | Novel assembling method for bent cap bearing frame | |
| CN218081208U (en) | Temporary jig frame supporting structure for steel box girder viaduct | |
| CN209924434U (en) | High-altitude overhanging formwork support frame body | |
| CN111188281A (en) | Transverse moving support system for prefabricated beam frame facility working machinery and construction method | |
| CN212919870U (en) | Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks | |
| CN215052133U (en) | Steel case roof beam is alternately construction supporting structure from top to bottom | |
| CN108625487A (en) | A kind of across frame structure end support node structure of steel bar girder plate | |
| CN212000638U (en) | Overhead cover beam type steel supporting structure | |
| CN210217084U (en) | Large-span ultrahigh-degree steel structure net rack construction work platform | |
| CN207646620U (en) | The movable construction platform of prefabricated wide cut beam slab | |
| CN108316119B (en) | Steel construction overpass convenient to installation | |
| CN207044363U (en) | A kind of new precast beam protection and operating platform | |
| CN111890549A (en) | Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks | |
| CN216615539U (en) | V-shaped supporting leg safety protection shed buttress capable of being recycled | |
| CN220598191U (en) | Supporting mechanism and pier construction platform | |
| CN219137419U (en) | Single-box multi-chamber suspension casting girder internal mold self-anchoring supporting system | |
| CN216238152U (en) | Prefabricated beam erection temporary buttress platform of variable width bridge | |
| CN216713946U (en) | A interim bearing structure for construction of teaching building slope roofing steel construction | |
| CN216999353U (en) | Assembled pier stud protection platform | |
| CN217839762U (en) | Temporary support pier upright post bracket structure | |
| CN215829259U (en) | Cantilever beam type support for high formwork operation | |
| CN217997838U (en) | Temporary support for assembling steel box bridge across river | |
| CN219261849U (en) | Supporting system capable of being detachably mounted on non-hardened ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |