CN215669022U - Support frame for steel beam construction at expansion joint position of steel structure plank road - Google Patents
Support frame for steel beam construction at expansion joint position of steel structure plank road Download PDFInfo
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- CN215669022U CN215669022U CN202120505363.6U CN202120505363U CN215669022U CN 215669022 U CN215669022 U CN 215669022U CN 202120505363 U CN202120505363 U CN 202120505363U CN 215669022 U CN215669022 U CN 215669022U
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Abstract
The utility model discloses a support frame for steel beam construction at an expansion joint position of a steel structure trestle, and belongs to the field of construction equipment. The support frame comprises a hoop, four inclined struts and four bracket connecting pieces. The two ends of each inclined strut are respectively fixed with a hoop ring and a bracket connecting piece through a connecting plate with holes, and the hoop rings are fixed on the steel column at the bottom of the trestle bridge to provide support sites for the inclined struts. And the bracket connecting piece is fixed in the lateral part of girder steel, transmits the partial load or the moment of girder steel to the steel column on, guarantees its stability. The steel beam at the expansion joint position of the column top of the steel structure plank road can be supported after being hoisted, so that the instability of the steel beam at the expansion joint position can be avoided, and the steel beam can be reinforced when the crane runs to the steel beam at the contraction joint position of the column top, so that the crane can be safely hoisted on the bridge floor of the plank road.
Description
Technical Field
The utility model belongs to the field of construction equipment, and particularly relates to a support frame for steel beam construction at an expansion joint position of a steel structure plank road.
Background
When the mountain forest plank road steel construction set up the expansion joint at the capital, the girder need break off to the girder directly places on the support of capital, does not have spacing fixed measure, and in this position work progress, plank road expansion joint girder steel hoist and mount need take the measure that prevents the girder unstability to the support of capital. In addition, when a crane suitable for a construction site needs to be put on a bridge deck, reinforcing measures need to be taken at the position of the expansion joint.
Therefore, how to design the supporting device for the expansion joint position of the trestle girder can be used for preventing the instability of the girder and reinforcing the expansion joint when a crane is hoisted at the position, which is a technical problem to be solved urgently at present.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a support frame for steel beam construction at an expansion joint of a steel structure trestle.
The utility model adopts the following specific technical scheme:
a support frame for steel beam construction at an expansion joint of a steel structure trestle comprises a hoop, four inclined struts and four bracket connecting pieces;
the hoop comprises two semicircular steel plates, four perforated ear plates, four first perforated connecting plates and a plurality of first bolt and nut assemblies, wherein one perforated ear plate is fixed at each of two ends of each semicircular steel plate in the radial direction, the two semicircular steel plates can be spliced into a ring-shaped hoop, the four perforated ear plates at the lower end part in a splicing state are opposite in pairs, and each pair of perforated ear plates are connected into a whole by installing a plurality of first bolt and nut assemblies into the hole of the plate body; four first perforated connecting plates are uniformly fixed on the outer peripheral ring surface formed by splicing the two semicircular ring steel plates at equal angles;
each bracket connecting piece comprises a second connecting plate with holes, a second bolt and nut assembly, an H-shaped steel bracket and a third connecting plate with holes; the second perforated connecting plate and the web plate of the H-shaped steel bracket are provided with bolt holes in one-to-one correspondence, and the second perforated connecting plate and the web plate of the H-shaped steel bracket can be detachably connected and fixed by installing a plurality of second bolt and nut assemblies into the bolt holes; the second perforated connecting plate is fixedly attached to the side edge of the web plate of the H-shaped steel bracket, and the side edge of one side, superposed with the side edge of the web plate of the H-shaped steel bracket, of the second perforated connecting plate is used for being welded with the trestle steel beam; the third perforated connecting plate is fixed on the bottom surface of the H-shaped steel bracket;
two ends of the inclined strut are respectively provided with bolt holes corresponding to the third perforated connecting plate and the first perforated connecting plate; four third perforated connecting plates at the bottoms of the four bracket connecting pieces correspond to four first perforated connecting plates one by one, and each pair of third perforated connecting plates and the first perforated connecting plates are fixedly connected through an inclined strut.
Preferably, the two end parts of the perforated ear plate vertical semicircular steel plate are outwards fixed.
Preferably, the perforated ear plate is fixed to the semicircular steel plate by welding.
Preferably, the first perforated connecting plate is fixed to the semicircular steel plate by welding.
Preferably, the inclined strut is made of I-shaped steel, two ends of the I-shaped steel are processed into inclined openings, and bolt holes are formed in the positions of the webs.
Furthermore, the third perforated connecting plate and the first perforated connecting plate are bolted and fixed with the web plate of the inclined strut.
Preferably, the first bolt-nut assembly and the second bolt-nut assembly both adopt high-strength bolts and nuts.
Preferably, the four bracket connecting pieces are in an assembled state, wherein webs of the H-shaped steel brackets are perpendicular to the direction of the trestle steel beams to be fixed.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model can play a supporting role after the steel beam at the expansion joint position of the top of the steel structure trestle column is hoisted, and can avoid the instability of the steel beam at the expansion joint position.
2. The utility model can play a role in reinforcing when the crane runs to the steel beam at the contraction joint position of the column top, so that the crane can be safely hoisted on the bridge floor of the trestle.
3. The utility model mainly adopts bolting, reduces the fire operation content during the construction of the mountain forest gallery road, and avoids mountain forest fire.
4. The utility model is convenient to assemble and disassemble, most components can be reused, and the cost is reduced.
5. The utility model can be used without falling to the ground, and can reduce the damage to the mountain forest environment.
Drawings
FIG. 1 is an axial view of a support frame for steel beam construction at an expansion joint of a steel structure trestle;
FIG. 2 is a side view of a support frame for steel beam construction at an expansion joint of a steel structure trestle;
FIG. 3 is a schematic diagram of the components of the hoop;
FIG. 4 is a schematic view of the components of the corbel connector;
FIG. 5 is a schematic view of the support frame in a first installation (from a top perspective);
FIG. 6 is a schematic view of the support frame in a first installation (viewed from the bottom);
FIG. 7 is a schematic view of the second mounting of the support bracket;
the reference numbers in the figures are: the hoop ring comprises a hoop ring 1, an inclined strut 2, a bracket connecting piece 3, a semicircular steel plate 101, a perforated ear plate 102, a first perforated connecting plate 103, a first bolt-nut component 104, a second perforated connecting plate 301, a second bolt-nut component 302, an H-shaped steel bracket 303 and a third perforated connecting plate 304.
Detailed Description
The utility model will be further elucidated and described with reference to the drawings and the detailed description. The technical features of the embodiments of the present invention can be combined correspondingly without mutual conflict.
As shown in fig. 1 and 2, in a preferred embodiment of the present invention, a support frame for steel beam construction at an expansion joint of a steel structure plank road is provided, and its main components include a hoop 1, four braces 2 and four bracket connectors 3. The specific structure and connection of the components are described in detail below.
The hoop ring 1 is used for hooping a structure below the plank road. Because the corresponding steel column is arranged below the constructed trestle, the steel column which is constructed on the trestle can be selected for the structure. As shown in fig. 3, the components of the hoop 1 include two semicircular steel plates 101, four perforated ear plates 102, four first perforated connecting plates 103, and a plurality of first bolt and nut assemblies 104. Wherein, the both ends of every semicircle ring steel sheet 101 are fixed with a foraminiferous otic placode 102 respectively along radial, and two semicircle ring steel sheets 101 can splice annular staple bolt, and four foraminiferous otic placodes 102 of tip under the concatenation state are two-by-two relative. Each pair of opposing apertured ear plates 102, as a set of attachment members, may be attached by a first bolt and nut assembly 104. Thus, each pair of apertured ear panels 102 is integrally connected by inserting a plurality of first bolt and nut assemblies 104 into the panel openings. In this embodiment, the perforated ear plate 102 is fixed to the two ends of the semicircular steel plate 101, and the perforated ear plate 102 may be fixed by welding to ensure the reliability of the fixing.
However, it should be noted that the two semicircular steel plates 101 are not necessarily completely connected in a splicing state, that is, each pair of the perforated ear plates 102 is not necessarily completely attached in practical use. And in fact, in order to ensure that the two semicircular steel plates 101 can be sufficiently tightened on the steel column, a certain gap is finally formed between each pair of the perforated lug plates 102 so as to leave a space for tightening the first bolt-nut assembly 104.
When the hooping ring 1 is hooped on the steel column, supporting sites are provided for the four inclined struts 2. The supporting points on the hoop ring 1 are realized by welding and fixing four first perforated connecting plates 103, and the four first perforated connecting plates 103 are uniformly fixed at equal angles on the outer peripheral ring surface formed by splicing two semicircular steel plates 101. In the present embodiment, the first holed connecting plate 103 is fixed to the semicircular steel plate 101 by welding.
As shown in FIG. 4, each corbel connector 3 comprises four components, namely a second apertured connecting plate 301, a second bolt-and-nut assembly 302, an H-beam corbel 303 and a third apertured connecting plate 304. Wherein, set up the bolt hole of one-to-one on the web of foraminiferous connecting plate 301 of second and H shaped steel bracket 303, both can realize connecting fixedly through packing into a plurality of second bolt and nut assemblies 302 in the bolt hole after the coincidence, and this kind of connection is detachable moreover, can twist out the nut when finishing using and dismantle. In actual use, the second perforated connecting plate 301 is attached to the side edge of one side of the web plate of the H-shaped steel bracket 303 and fixed. And one side edge of the second perforated connecting plate 301, which coincides with the web side edge of the H-shaped steel bracket 303, is used for welding with the trestle steel beam, so that the second perforated connecting plate 301 can be welded perpendicular to the side surface of the trestle steel beam in the prefabricating process of the trestle steel beam, and the H-shaped steel bracket 303 and the second perforated connecting plate 301 are bolted and fixed through a second bolt-nut assembly 302.
The bracket connecting piece 3 is used for forming a supporting site connected with the inclined strut 2 on the girder of the trestle, and the supporting site of the bracket connecting piece 3 is also realized by fixing a third perforated connecting plate 304 on the bottom surface of the H-shaped steel bracket 303. The third perforated connecting plate 304 is fixed on the bottom surface of the bracket 303 of the H-shaped steel through welding.
Four bracket connecting pieces 3 are in an assembly state, wherein webs of the H-shaped steel brackets 303 are perpendicular to the direction of the trestle steel beams to be fixed. Therefore, the trestle girder can be fixed by the inclined strut 2.
Bolt holes corresponding to the third perforated connecting plate 304 and the first perforated connecting plate 103 are respectively formed at two ends of each inclined strut 2. Four third perforated connecting plates 304 at the bottoms of the four bracket connecting pieces 3 correspond to four first perforated connecting plates 103 one by one, and each pair of third perforated connecting plates 304 and the first perforated connecting plates 103 are fixedly connected through one inclined strut 2. In this embodiment, the diagonal brace is made of i-steel, two ends of the i-steel are processed into oblique openings, and bolt holes are formed in the web plate. Therefore, the third perforated connecting plate 304 and the first perforated connecting plate 103 in this embodiment are bolted and fixed to the web position of the diagonal brace 2.
In order to ensure the strength of the bolting, high-strength bolt-nuts meeting the structural strength requirement are required for both the first bolt-nut assembly 104 and the second bolt-nut assembly 302.
Hoop 1, inclined strut 2, bracket connecting piece 3, semicircular steel plate 101, perforated ear plate 102, first perforated connecting plate 103, first bolt-nut component 104, second perforated connecting plate 301, second bolt-nut component 302, H-shaped steel bracket 303 and third perforated connecting plate 304
Referring to fig. 5 and 6, the installation process of the support frame for steel beam construction at the expansion joint position of the steel structure trestle is as follows:
1. the lower hoop 1 is first fastened to the steel column by the first bolt and nut assembly 104.
2. When the trestle steel beam is processed in a factory, the second connecting plates 301 with holes are welded on the side faces of the steel beam, and two sides of each steel beam are respectively fixed with one second connecting plate 301 with holes. The second perforated connecting plate 301 is vertically welded to the side of the steel beam.
3. And bolting the H-shaped steel bracket 303 and a second perforated connecting plate 301 on a trestle steel beam through a second bolt-nut assembly 302.
4. After two sections of trestle steel beams with expansion joints at the tops of the steel columns are hoisted in place, the trestle steel beams are bolted with a third perforated connecting plate 304 and a first perforated connecting plate 103 at the upper part through bolt holes at the upper end and the lower end of the inclined strut 2, and therefore four pairs of hoop rings 1 and bracket connecting pieces 3 are connected, as shown in fig. 5 and 6. From this, can play the supporting role, can avoid expansion joint position girder steel unstability.
In addition, as shown in fig. 7, after the construction of the steel beam at the expansion joint is completed, the support frame can also play a role in reinforcement, so that the crane can be lifted on the deck of the trestle.
After the construction of one steel column top component is finished, the support frame can be detached for the construction of the next steel column top component.
The above-described embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the utility model. Various changes and modifications may be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, the technical scheme obtained by adopting the mode of equivalent replacement or equivalent transformation is within the protection scope of the utility model.
Claims (8)
1. A support frame for steel beam construction at an expansion joint of a steel structure trestle is characterized by comprising a hoop (1), four inclined struts (2) and four bracket connecting pieces (3);
the hoop (1) comprises two semicircular steel plates (101), four perforated ear plates (102), four first perforated connecting plates (103) and a plurality of first bolt and nut assemblies (104), wherein one perforated ear plate (102) is fixed at each of two ends of each semicircular steel plate (101) in the radial direction, the two semicircular steel plates (101) can be spliced to form an annular hoop, the four perforated ear plates (102) at the lower end part in the splicing state are opposite to each other in pairs, and each pair of perforated ear plates (102) are connected into a whole by installing the first bolt and nut assemblies (104) into the open hole of the plate body; four first perforated connecting plates (103) are uniformly fixed on the peripheral ring surface formed by splicing the two semicircular steel plates (101) at equal angles;
each bracket connecting piece (3) comprises a second perforated connecting plate (301), a second bolt-nut assembly (302), an H-shaped steel bracket (303) and a third perforated connecting plate (304); the second perforated connecting plate (301) and the web plate of the H-shaped steel bracket (303) are provided with bolt holes which correspond to each other one by one, and the second perforated connecting plate and the web plate can be detachably connected and fixed by installing a plurality of second bolt and nut assemblies (302) into the bolt holes; the second perforated connecting plate (301) is attached to the side edge of the web plate of the H-shaped steel bracket (303) for fixing, and the side edge of one side, overlapped with the side edge of the web plate of the H-shaped steel bracket (303), of the second perforated connecting plate (301) is used for being welded with the trestle steel beam; the third perforated connecting plate (304) is fixed on the bottom surface of the H-shaped steel bracket (303);
bolt holes corresponding to the third perforated connecting plate (304) and the first perforated connecting plate (103) are respectively formed in two ends of the inclined strut (2); four third perforated connecting plates (304) at the bottoms of the four bracket connecting pieces (3) are in one-to-one correspondence with the four first perforated connecting plates (103), and each pair of third perforated connecting plates (304) and the first perforated connecting plates (103) are fixedly connected through an inclined strut (2).
2. The support frame for steel beam construction at an expansion joint position of a steel structure trestle according to claim 1, characterized in that the end parts of the two ends of the vertical semicircular ring steel plates (101) of the ear plates (102) with holes are fixed outwards.
3. The support frame for steel beam construction at an expansion joint position of a steel structure trestle according to claim 1, characterized in that the perforated ear plate (102) is fixed on the semicircular steel plate (101) by welding.
4. The support frame for steel beam construction at an expansion joint position of a steel structure trestle according to claim 1, wherein the first perforated connecting plate (103) is fixed on the semicircular steel plate (101) by welding.
5. The support frame for construction of the steel beam at the expansion joint of the steel structure trestle according to claim 1, wherein the brace is made of i-steel, two ends of the i-steel are processed into oblique openings, and bolt holes are formed at the web plate.
6. The support frame for steel beam construction at the expansion joint position of the steel structure trestle according to claim 5, characterized in that the third perforated connecting plate (304) and the first perforated connecting plate (103) are bolted and fixed with the web plate position of the inclined strut (2).
7. The support frame for steel beam construction at an expansion joint position of a steel structure trestle according to claim 1, wherein the first bolt-nut assembly (104) and the second bolt-nut assembly (302) both adopt high-strength bolts and nuts.
8. The support frame for construction of steel beams at expansion joints of steel structure trestle according to claim 1, characterized in that the four bracket connecting pieces (3) are in an assembled state, wherein the web plates of the H-shaped steel brackets (303) all run perpendicular to the steel beams of the trestle to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505363.6U CN215669022U (en) | 2021-03-10 | 2021-03-10 | Support frame for steel beam construction at expansion joint position of steel structure plank road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505363.6U CN215669022U (en) | 2021-03-10 | 2021-03-10 | Support frame for steel beam construction at expansion joint position of steel structure plank road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215669022U true CN215669022U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120505363.6U Active CN215669022U (en) | 2021-03-10 | 2021-03-10 | Support frame for steel beam construction at expansion joint position of steel structure plank road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215669022U (en) |
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2021
- 2021-03-10 CN CN202120505363.6U patent/CN215669022U/en active Active
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