CN216195447U - Hinged joint structure of steel secondary beam and precast concrete main beam - Google Patents
Hinged joint structure of steel secondary beam and precast concrete main beam Download PDFInfo
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- CN216195447U CN216195447U CN202122693064.2U CN202122693064U CN216195447U CN 216195447 U CN216195447 U CN 216195447U CN 202122693064 U CN202122693064 U CN 202122693064U CN 216195447 U CN216195447 U CN 216195447U
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Abstract
The utility model discloses a hinged connection node structure of a steel secondary beam and a precast concrete main beam, which belongs to the field of civil engineering and comprises a precast concrete main beam and the steel secondary beam, wherein at least one side of the precast concrete main beam is provided with an opening platform for placing the steel secondary beam, the steel secondary beam is provided with a first connecting plate for being erected on the opening platform, a second stiffening plate is arranged between the first connecting plate and the upper flange of the steel secondary beam, a first stiffening plate is also arranged between the first connecting plate and the lower flange of the steel secondary beam, and a tensioning mechanism is arranged between the steel secondary beam and the precast concrete main beam and above the first connecting plate. The hinged connection node structure has the advantages of being strong in integrity, simple to operate, rapid in construction, capable of avoiding field welding and capable of achieving reliable connection and accurate positioning of the steel secondary beam and the precast concrete main beam.
Description
Technical Field
The utility model belongs to the field of industrial and civil buildings, and provides a hinged connection node structure of a steel secondary beam and a precast concrete main beam.
Background
At present, the secondary beam of the traditional concrete building structure is mostly a concrete beam and is mostly cast in situ by adopting an on-site formwork. When the span of the concrete beam is too large, the self weight of the concrete beam is increased greatly after the height of the concrete beam is increased, so that the concrete beam is not economical, and the formwork is more difficult to support when the span is large. Especially, the logistics factory building with higher floor height, the large-span formwork support and the high formwork support can bring great difficulty to the construction. The site construction operation of the concrete secondary beam and the main beam needs to consume a large amount of resources (such as template materials of a formwork, labor input and the like), the construction efficiency is low, and therefore high engineering cost is brought. In addition, at present, the connection between the concrete beam and the steel beam mostly adopts an embedded part assembly and an assembly mode of on-site welding or bolting and welding mixed connection, in the connection process of the steel beam and the embedded part, a crane is needed to fix the steel beam, and the positioning of the steel beam is difficult. The connection of the concrete beam and the steel beam relates to the field high-altitude welding operation, the difficulty is high, the danger coefficient is high, and the large residual stress can be brought to influence the original structure.
In conclusion, the steel secondary beam can be adopted to replace a concrete beam in the large-span structure, the whole weight of the structure is reduced, and a novel connecting joint of the steel beam and the concrete beam is provided, so that the stress performance and the connection integrity are better realized, the field welding is avoided, the construction difficulty is reduced, and the positioning accuracy and the construction quality are ensured.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a hinged connection node structure of a steel secondary beam and a precast concrete main beam, which solves the problems of low construction efficiency, high construction difficulty and poor structural reliability.
In order to achieve the purpose, the utility model provides the following technical scheme.
The utility model provides a hinged connection node structure of a steel secondary beam and a precast concrete main beam, which comprises the precast concrete main beam and the steel secondary beam, wherein at least one side of the precast concrete main beam is provided with an opening platform for placing the steel secondary beam, the steel secondary beam is provided with a first connecting plate which is used for being lapped on the opening platform, a second stiffening plate is arranged between the first connecting plate and the upper flange of the steel secondary beam, a first stiffening plate is also arranged between the first connecting plate and the lower flange of the steel secondary beam, and a tensioning mechanism is arranged between the steel secondary beam and the precast concrete main beam and above the first connecting plate.
And furthermore, the upper flange of the steel secondary beam is provided with a stud combined with the floor slab on the surface deviating from the precast concrete main beam.
Furthermore, the tensioning mechanism is composed of a second connecting plate and split bolts, the second connecting plate is arranged on the steel secondary beam and located on two sides of the extending direction of the steel secondary beam, the second connecting plate is fixed between the upper flange of the steel secondary beam and the first connecting plate, at least one split bolt matched with the second connecting plate is arranged on the corresponding side of the precast concrete main beam facing the second connecting plate, and the split bolts are symmetrically distributed on two sides of the extending direction of the steel secondary beam.
Furthermore, the second connecting plate is provided with a long round hole matched with the split bolt.
Furthermore, a pre-buried sleeve is arranged in the precast concrete girder, and the split bolt is installed in the pre-buried sleeve.
Furthermore, the part of the split bolt in the precast concrete girder is set as a bending part.
Furthermore, the first connecting plate, the first stiffening plate, the second stiffening plate and the second connecting plate are integrated on the steel secondary beam.
Further, the precast concrete main beam is provided with a notch at the top facing the upper flange of the steel secondary beam.
Furthermore, the steel secondary beam is of a variable cross-section structure, and the upper flange is narrower than the lower flange.
The utility model has the beneficial effects that: the hinged connection node structure is connected with the concrete wing plate through the steel secondary beam upper flange welding stud to form a combined beam, and the combined beam commonly bears load, so that the effects of saving materials, reducing cost and lightening the self weight of the structure are further achieved. And under the condition that satisfies the design specification requirement, this articulated connected node structure's wholeness is strong, easy operation, and simultaneously, the construction is rapid, avoids the on-the-spot welding, can realize the reliable connection and the accurate positioning of steel secondary beam and precast concrete girder, has stronger practical advance.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a hinged connection node configuration of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view of another construction of the precast concrete main girder of FIG. 1;
reference numerals: 1-prefabricating a concrete girder; 2-a steel beam; 3-a first stiffening plate; 4-a first connection plate; 5-a second stiffening plate; 6-a second connecting plate; 7-split bolts; 8-embedding a sleeve; 9-a stud; 10-a floor slab; 11-a notch table and 12-a notch.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1-2, the hinge joint structure of the steel secondary beam and the precast concrete main beam of the utility model comprises a precast concrete main beam 1 and a steel secondary beam 2, wherein the precast concrete main beam 1 is precast in a factory or on site, and a gap platform 11 for installing the steel secondary beam and an embedded sleeve 8 are reserved on the precast concrete main beam; the steel secondary beam 2 is installed at the opening table 11 of the precast concrete main beam 1, and the first connecting plate 4 is installed on the steel secondary beam 1 and is used for being erected on the opening table 11, the opening table 11 in this embodiment is installed on one side of the precast concrete main beam 1, and certainly, in different implementations, the steel secondary beam can be installed on two sides, three sides, or even four sides of the precast concrete main beam 1. The second stiffening plate 5 is arranged between the first connecting plate 4 and the upper flange 21 of the steel secondary beam 2, and the first stiffening plate 3 is arranged between the first connecting plate 4 and the lower flange 22 of the steel secondary beam 2, namely the first connecting plate 4 is perpendicular to the beam body of the steel secondary beam 2 and is in welded connection with the beam body, the second stiffening plate 5 is in welded connection with the first connecting plate 4 and the upper flange 21 and the beam body of the steel secondary beam 2, and the first stiffening plate 3 is in welded connection with the first connecting plate 4 and the lower flange 22 and the beam body of the steel secondary beam 2. A tensioning mechanism is arranged between the precast concrete main beam 1 and the steel secondary beam 2 and above the first connecting plate 4, the tensioning mechanism consists of a second connecting plate 6 and a split bolt 7, wherein, the steel secondary beam 2 is provided with second connecting plates 6 at two sides in the extending direction, the second connecting plates 6 are fixed between the upper flange 21 of the steel secondary beam 2 and the first connecting plate 4, namely the second connecting plate 6 is welded with the first connecting plate 4 and the upper flange 21 and the beam body of the steel secondary beam 2, at least one split bolt 7 matched with the precast concrete main beam 1 is arranged on the precast concrete main beam 1 and opposite to the second connecting plate 6, the split bolts 7 are symmetrically distributed along the two sides of the extension direction of the steel secondary beam 2, the steel secondary beam is fastened by the split bolts 7 to facilitate subsequent installation, the split bolt is an M16 common bolt, and the length of the bolt is determined according to the distance between the second connecting plates on the steel secondary beams on the two sides; the split bolt 7 is installed in the embedded sleeve 8. Thus, the rectangular opening table 11 and the embedded sleeve 8 are reserved on the side face of the precast concrete main beam, the steel secondary beam is hung into the opening table on the side face of the precast concrete main beam during installation, and the split bolt is threaded for fastening, so that the positioning effect is achieved. By adopting the scheme, the node is strong in integrity, large in node rigidity, convenient to construct, economical and reasonable, capable of achieving reliable connection and accurate positioning of the steel secondary beam and the precast concrete girder and strong in practical advancement.
In this embodiment, the first connecting plate 4, the first stiffening plate 3, the second stiffening plate 5 and the second connecting plate 6 are all integrated on the steel secondary beam 2, that is, the whole steel secondary beam 2 with the first stiffening plate 3, the second stiffening plate 5, the first connecting plate 4 and the second connecting plate 6 is manufactured in advance in a factory, so as to improve the field construction efficiency and facilitate construction.
In the embodiment, the bolt hole on the second connecting plate 6 is an oblong hole, so that the split bolt is convenient to mount, position and adjust. In yet another embodiment, as shown in fig. 3, a slot 12 is formed above the precast concrete main beam 1 to facilitate the installation of the steel secondary beam for resting and transferring the shear force of the secondary beam. After the steel secondary beam is installed, pouring is carried out on the side sealing steel plate of the notch 12, the side sealing steel plate of the notch is a galvanized steel plate with the thickness of 2mm, slurry leakage during pouring of the notch at the top is prevented, the steel plate and the steel secondary beam are fixed in a local spot welding mode, the concrete adopted for pouring is fine stone concrete, and the expansion rate of the 14-day limit value is required to be more than or equal to 0.030%.
The upper flange 21 of the steel secondary beam 2 in this embodiment is provided with studs 9 combined with the floor slab 10 at the side facing away from the precast concrete main beam 1. Therefore, the stud is arranged on the upper flange of the steel secondary beam and forms a combined beam structure with the floor cast-in-place plate.
The steel secondary beam 2 in the embodiment adopts a variable cross-section structure, that is, the upper flange 21 of the steel secondary beam 2 is narrower than the lower flange 22, so that the steel can be saved, and the steel secondary beam can be conveniently installed.
In another embodiment, the part of the split bolt 7 in the precast concrete main beam 1 is a bent part, as shown in fig. 3, that is, the split bolt is directly embedded in the precast concrete main beam 1 instead of the embedded sleeve.
The construction process of the hinge joint structure of the steel secondary beam and the precast concrete main beam is described in detail below, and comprises the following steps: before field installation, a notch platform is arranged in the area of the precast concrete main beam where the steel secondary beam needs to be placed, a notch is arranged at the top of the precast concrete main beam, and a pre-embedded sleeve is reserved in the precast concrete main beam corresponding to the second connecting plate of the steel secondary beam; then, manufacturing a steel secondary beam with a first stiffening plate, a second stiffening plate, a first connecting plate and a second connecting plate in a factory according to the design size, and manufacturing a split bolt in the factory; then, during field installation, the steel secondary beam is hung into the opening table of the precast concrete main beam and is fastened by threading a split bolt to achieve the positioning and reinforcing effects; and finally, plugging the opening platforms of the secondary steel beams and the precast concrete main beams by galvanized steel plates with the thickness of 2mm, and then performing on-site integral casting.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. Articulated connected node structure of steel secondary beam and precast concrete girder, including precast concrete girder (1) and steel secondary beam (2), its characterized in that, opening platform (11) that are used for shelving the steel secondary beam are offered to at least one side of precast concrete girder, set up on the steel secondary beam and be used for taking up first connecting plate (4) of establishing at the opening bench, set up second stiffening plate (5) between first connecting plate and steel secondary beam's last edge of a wing (21), set up first stiffening plate (3) still between first connecting plate and steel secondary beam's lower edge of a wing (22), set up straining device between steel secondary beam and the precast concrete girder and be located first connecting plate top.
2. The construction of the articulated connection joint of a steel secondary beam with a precast concrete main beam according to claim 1, characterized in that the upper flange of the steel secondary beam is provided with studs (9) combined with a floor slab (10) at the facing away from the precast concrete main beam.
3. The structure of the hinge connection joint of the steel secondary beam and the precast concrete main beam according to claim 1, wherein the tensioning mechanism is composed of a second connection plate (6) and a tie bolt (7), the second connection plate is respectively arranged on the steel secondary beam and positioned on two sides of the extension direction of the steel secondary beam, the second connection plate is fixed between the upper flange of the steel secondary beam and the first connection plate, the precast concrete main beam is provided with at least one tie bolt matched with the second connection plate facing to the corresponding side of the second connection plate, and the tie bolts are symmetrically distributed along two sides of the extension direction of the steel secondary beam.
4. The structure of the hinged connection joint of the steel secondary beam and the precast concrete main beam according to claim 3, wherein the second connection plate is provided with a long round hole matched with a split bolt.
5. The hinge connection node structure of the steel secondary beam and the precast concrete main beam according to claim 3, wherein an embedded sleeve (8) is provided in the precast concrete main beam, and the split bolt is installed in the embedded sleeve.
6. The hinge joint structure of the steel secondary beam and the precast concrete main beam according to claim 3, wherein the split bolt is formed as a bent portion at a portion provided in the precast concrete main beam.
7. The structure of the hinged connection joint of the steel secondary beam and the precast concrete main beam according to claim 3, wherein the first connection plate, the first stiffener, the second stiffener and the second connection plate are integrated on the steel secondary beam.
8. The articulated connection joint construction of a steel secondary beam and a precast concrete main beam according to claim 1, wherein the precast concrete main beam is notched (12) at the top facing the upper flange of the steel secondary beam.
9. The structure of the hinge connection node of the steel secondary beam and the precast concrete main beam according to claim 1, wherein the steel secondary beam has a variable cross-section structure, and an upper flange is narrower than a lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122693064.2U CN216195447U (en) | 2021-11-03 | 2021-11-03 | Hinged joint structure of steel secondary beam and precast concrete main beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122693064.2U CN216195447U (en) | 2021-11-03 | 2021-11-03 | Hinged joint structure of steel secondary beam and precast concrete main beam |
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| Publication Number | Publication Date |
|---|---|
| CN216195447U true CN216195447U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122693064.2U Active CN216195447U (en) | 2021-11-03 | 2021-11-03 | Hinged joint structure of steel secondary beam and precast concrete main beam |
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| CN (1) | CN216195447U (en) |
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- 2021-11-03 CN CN202122693064.2U patent/CN216195447U/en active Active
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