CN114277929A - Modular steel structure reverse self-locking column-column connecting node and connecting method - Google Patents
Modular steel structure reverse self-locking column-column connecting node and connecting method Download PDFInfo
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- CN114277929A CN114277929A CN202111588954.5A CN202111588954A CN114277929A CN 114277929 A CN114277929 A CN 114277929A CN 202111588954 A CN202111588954 A CN 202111588954A CN 114277929 A CN114277929 A CN 114277929A
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Abstract
The invention relates to a modularized steel structure reverse self-locking column-column connecting node, which comprises an upper module column and a lower module column, wherein an upper lock box is embedded in the end part of the upper module column adjacent to the lower module column, a lower lock box is embedded in the end part of the lower module column adjacent to the upper module column, and when the upper module column and the lower module column are installed in a centering way, the upper lock box and the lower lock box are in self-locking connection to realize the fixed connection of the upper module column and the lower module column; according to the invention, the self-locking connection or unlocking separation operation of the upper module column and the lower module column can be realized only by centering the upper module column on the lower module column and under the action of gravity of the upper module column, no additional process or operation space is required, the force transmission is simple and reliable, and the dependence on the installation technology of workers is low.
Description
Technical Field
The invention relates to a reverse self-locking column-column connecting node of a modular steel structure and a connecting method, and belongs to the field of building structure engineering.
Background
At present, modularization steel construction connected node form is various, mainly with the welding, bolted connection, bolt-welding hybrid connection, connection forms such as spring auto-lock connection exist, current connection form site-specific installation efficiency is not high, construction error is great, most connection forms need additionally reserve the construction space, to the sixteen roof beam internal nodes of modularization steel construction eight post, under the open-ended condition in addition, can't satisfy its construction requirements, open installation will weaken beam column node rigidity, and it is higher to constructor's installation technical requirement.
Meanwhile, the gap of the construction labor force is large at present, especially, technical workers are extremely deficient, and the connection node form depending on the installation technology is not suitable for the development of the current construction industry form. Therefore, the adoption of the connection node which does not need extra construction space and has smaller requirement on construction errors (low dependence degree of installation technology) is the development direction and key problem of the current modularized steel structure connection node.
Disclosure of Invention
The invention provides a modular steel structure reverse self-locking column-column connecting node and a connecting method, wherein an upper module column is mounted to a middle lower module column only, no additional construction space is needed, and force transmission is simple and reliable.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a modularized steel structure reverse self-locking column-column connection node comprises an upper module column and a lower module column, wherein an upper lock box is embedded in the end part of the upper module column adjacent to the lower module column, a lower lock box is embedded in the end part of the lower module column adjacent to the upper module column, and when the upper module column and the lower module column are installed in a centering mode, the upper lock box and the lower lock box are connected in a self-locking mode, so that the upper module column and the lower module column are fixedly connected;
as a further preferred aspect of the present invention, a one-way opening plate and a right-angle spring are installed in the lock box, a portion of the one-way opening plate, which is defined to open and close, is a surface of the one-way opening plate, two hinge plates of the one-way opening plate are symmetrically hinged to an inner wall of the lock box through hinge rods, respectively, and a gap is formed between the two hinge plates;
the two hinge plates are respectively fixed with a right-angle spring, a right-angle support wire at one end of the right-angle spring is welded on the hinge plates, and a right-angle support wire at the other end of the right-angle spring is welded on the inner wall of the upper lock box;
as a further preferred of the invention, an annular fixing plate is attached to the bottom surface of the one-way opening plate, and the plate wall of the annular fixing plate is welded on the inner wall of the upper lock box;
as a further preferred aspect of the present invention, a support plate, a positioning plate and a shear-resistant coreboard are installed in the lower lockbox, the end of the support plate adjacent to the upper lockbox is defined as a top, the center of the shear-resistant coreboard is fixed to the top of the support plate, the shear-resistant coreboard is vertically arranged with the support plate, and the positioning plate is vertically installed on the support plate at a position close to the shear-resistant coreboard;
as a further preferred aspect of the present invention, the distance between the shear lock core plate and the positioning plate is equal to the sum of the thicknesses of the one-way split plate and the annular fixing plate;
the gap between the two hinge plates is matched with the thickness of the supporting plate;
as a further preferred aspect of the present invention, the surface area of the shear-resistant lock core plate is smaller than the area of the cavity in the annular fixing plate, and the surface area of the shear-resistant lock core plate is smaller than the area formed when the one-way opening plate is closed;
as a further preference of the invention, the positioning device also comprises at least one stiffening plate, wherein the at least one stiffening plate vertically penetrates through the supporting plate, and is also vertical to the positioning plate;
as a further preferred aspect of the present invention, the present invention further comprises a horizontal connecting member, wherein the upper lock box extends out of the end portion of the upper module column adjacent to the lower module column, when the upper lock box and the lower lock box are connected in a centering manner, a gap is formed between the upper lock box and the lower lock box, and the gap is filled through the horizontal connecting member;
a connection method based on any modular steel structure reverse self-locking column-column connection node specifically comprises the following steps:
step S1: an upper lock box and a lower lock box are prefabricated in a factory, the upper lock box is embedded into the opening end of the upper module column, the lower lock box is embedded into the opening end of the lower module column, and the upper lock box, the lower lock box and the horizontal connecting piece are transported to a construction site;
step S2: connecting the prefabricated lower module column with the lower unit, and installing the horizontal connecting piece and the lower module in a centering way;
step S3: starting a crane, and aligning the end part of the prefabricated upper module column provided with the upper lock box with the lower module column;
step S4: the upper lock box is aligned to the lower lock box, the shear-resistant lock core plate pushes the hinge plate to open towards the wall of the upper lock box, and the shear-resistant lock core plate penetrates through the one-way opening plate;
step S5: continuously starting the crane, completely covering the self weight of the upper module column on the lower module column, reclosing the hinge plate, tightly attaching the surface of the anti-shearing lock core plate to the surface of the one-way opening plate, and connecting the upper module column with the lower module column;
if the upper module column and the lower module column need to be separated, the crane is started again to lift the upper module column, the two hinge plates are opened again, the shear-resistant lock core plate is withdrawn from the upper lock box, and the separation of the upper module column and the lower module column can be realized;
as a further preferable aspect of the present invention, the floor channel beams are welded and fixed to both sides of the upper module column, the ceiling channel beams are welded and fixed to both sides of the lower module column, and after the upper module column and the lower module column are aligned, flanges of the floor channel beams and flanges of the ceiling channel beams are arranged to face each other.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the self-locking connection or unlocking separation operation of the upper module column and the lower module column can be realized only by centering the upper module column and the lower module column and through the gravity action of the upper module column, no additional process and operation space are required, and the construction is simple;
2. the invention allows certain construction deviation when the upper module column and the lower module column are aligned, and has lower dependence on the installation technology of workers.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is an overall schematic view of an eight-column sixteen-beam (eight-beam visualized) connection node provided by the invention;
FIG. 2 is an overall schematic view of a modular steel structure reverse locking type column-column connection joint provided by the invention;
FIG. 3 is a schematic side view of a modular steel structure reverse locking type column-column connection joint provided by the invention;
FIG. 4 is an exploded view of the lock box according to the present invention;
FIG. 5 is an exploded view of the lock box provided by the present invention;
fig. 6 is a schematic view of a right angle spring provided by the present invention.
In the figure: the locking structure comprises an upper module column 1, an upper lock box 2, an upper lock cylinder 3, a lower lock cylinder 4, a lower lock box 5, a lower module column 6, a right-angle spring 7, a horizontal connecting piece 8, a shear-resistant lock core plate 9, a positioning plate 10, a supporting plate 11, a one-way opening plate 12, an annular fixing plate 13, a stiffening plate 14, a right-angle stay wire 15, a ceiling channel steel beam 17 and a floor channel steel beam 18.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As explained in the background art, the existing modular steel structure connection node mainly uses external connections such as welding, bolts and the like, and therefore an opening needs to be made in the modular steel structure to meet the construction requirements.
The application aims at providing a reverse self-locking column-column connecting node of a modular steel structure, self-locking connection or unlocking separation operation of an upper module column and a lower module column can be realized through the gravity action of the upper module column, no extra construction space is needed, and force transmission is simple and reliable.
Fig. 1 is a schematic diagram of a member of an eight-column sixteen-beam, in which an eight-beam on a symmetrical side is hidden for convenience of description, and a connection between an upper module column 1 and a lower module column 6 is four preferred nodes provided in the present application, and when specifically stated, one node is taken as an example.
2-3, the connecting joint is decomposed to obtain two angles, the upper lock box 2 is embedded in the end part of the upper module column adjacent to the lower module column, the lower lock box 5 is embedded in the end part of the lower module column adjacent to the upper module column, and when the upper module column and the lower module column are installed in a centering way, the upper lock box and the lower lock box are connected in a self-locking way, so that the upper module column and the lower module column are fixedly connected
For the upper lock box structure, as shown in fig. 4, the upper lock box is welded and fixed in the upper module column, an upper lock core 3 is installed in the upper lock box, the section form of the outer wall of the box is matched with that of the upper module column, and the upper lock box is welded and fixed in the upper module column; the one-way opening plate 12 and the right-angle spring 7 are arranged in the upper lock box, the part of the one-way opening plate for opening and closing is defined as the surface of the one-way opening plate, two hinge plates of the one-way opening plate are symmetrically hinged on the inner wall of the lock box through hinge rods respectively, and a gap is reserved between the two hinge plates; in order to increase the restoring force of the one-way opening plate, namely, the one-way opening plate can automatically reset when not being pushed, the two hinge plates are respectively fixed with the right-angle spring shown in figure 6, the right-angle support wire 15 at one end of the right-angle spring is welded on the hinge plates, and the right-angle support wire at the other end of the right-angle spring is welded on the inner wall of the upper lock box. The hinge plate can be automatically reset in various structures, and the right-angle spring is the best one with the lowest cost and the best effect after multiple tests.
In the foregoing, the unidirectional opening and closing plate needs to be opened and closed unidirectionally, and the opening and closing direction of the unidirectional opening and closing plate is also fixed, so in order to limit the opening and closing direction of the unidirectional opening and closing plate, an annular fixing plate 13 is attached to the bottom surface of the unidirectional opening and closing plate, and the wall of the annular fixing plate is welded on the inner wall of the upper lock box; in order to ensure the rigidity, the hinge plate and the annular fixed plate are both made of steel plates.
Next, describing a specific structure of the lower lock box, as shown in fig. 5, the lower lock box is embedded in the lower module column, and the lower lock core 4 is installed therein, the cross-sectional form of the outer wall of the box is matched with the cross-sectional form of the lower module column, and the lower lock box is welded and fixed in the lower module column; a supporting plate 11, a positioning plate 10 and a shear-resistant lock core plate 9 are arranged in the lower lock box, the end part of the supporting plate adjacent to the upper lock box is defined as the top, the center of the shear-resistant lock core plate is fixed at the top of the supporting plate, the shear-resistant lock core plate is vertically arranged with the supporting plate, and the positioning plate is vertically arranged at the position, close to the shear-resistant lock core plate, on the supporting plate.
The shear-resistant lock core plate is a key point for realizing the connection of the upper module column and the lower module column, is embedded into the one-way opening plate, the bottom surface of the shear-resistant lock core plate is attached to the surface of the one-way opening plate, and the connection of the upper module column and the lower module column can be realized through the positioning of the positioning plate, so that the distance between the shear-resistant lock core plate and the positioning plate is equal to the sum of the thicknesses of the one-way opening plate and the annular fixing plate in order to ensure the tight connection of the upper module column and the lower module column. Meanwhile, when the upper module column is connected with the lower module column, the supporting plate needs to penetrate through the annular fixing plate and the one-way opening plate, so that the gap between the two hinge plates needs to be matched with the thickness of the supporting plate.
The surface area of the shear-resistant lock core plate is smaller than the area of the inner cavity of the annular fixed plate, and the surface area of the shear-resistant lock core plate is smaller than the area formed when the one-way opening plate is closed; that is to say, the larger the size that the shear lock core board sets up than the annular fixed plate internal diameter size under the prerequisite is little the better to increase the area of contact of shear lock core board and one-way open-close plate.
As also shown in fig. 5, the positioning plate further comprises at least one stiffening plate 14, wherein the at least one stiffening plate vertically penetrates through the supporting plate, and the at least one stiffening plate is also vertical to the positioning plate; the supporting plate can be further reinforced by the stiffening plate.
In actual operation, in order to meet the connection between horizontal modules, a horizontal connecting piece 8 is arranged between the upper module column and the lower module column, and meanwhile, in order to ensure that the horizontal connecting piece is optimally matched with each lock box, the upper lock box can extend out of the end part of the upper module column adjacent to the lower module column, and a gap formed between the upper lock box and the lower lock box is filled through the horizontal connecting piece; meanwhile, the height of the supporting plate is determined according to the thickness of the horizontal connecting piece so as to ensure that the outer vertical surface of the frame is flat and smooth.
The upper module column and the lower module column which are produced adopt a closed section form and are matched with each other, the section forms of the square steel tube and the section form of the round steel tube are all the same, and when the section of the square steel tube is adopted, the inner wall right angle is subjected to arc chamfering, so that the follow-up installation is convenient.
Finally, the application provides a connecting method of the modularized steel structure reverse self-locking column-column connecting node, which specifically comprises the following steps:
step S1: an upper lock box and a lower lock box are prefabricated in a factory, the upper lock box is embedded into the opening end of the upper module column, the lower lock box is embedded into the opening end of the lower module column, and the upper lock box, the lower lock box and the horizontal connecting piece are transported to a construction site;
step S2: connecting the prefabricated lower module column with the lower unit, and installing the horizontal connecting piece and the lower module in a centering way;
step S3: starting a crane, and aligning the end part of the prefabricated upper module column provided with the upper lock box with the lower module column;
step S4: the upper lock box is aligned to the lower lock box, the shear-resistant lock core plate pushes the hinge plate to open towards the wall of the upper lock box, and the shear-resistant lock core plate penetrates through the one-way opening plate;
step S5: continuously starting the crane, completely covering the self weight of the upper module column on the lower module column, reclosing the hinge plate, tightly attaching the surface of the anti-shearing lock core plate to the surface of the one-way opening plate, and connecting the upper module column with the lower module column;
if the upper module column and the lower module column need to be separated, the crane is started again to lift the upper module column, the two hinge plates are opened again, the shear-resistant lock core plate is withdrawn from the upper lock box, and the upper module column and the lower module column can be separated.
The floor channel steel beams 18 are welded and fixed on two sides of the upper module column respectively, the ceiling channel steel beams 17 are welded and fixed on two sides of the lower module column respectively, the floor channel steel beams and the upper module column as well as the ceiling channel steel beams and the lower module column can be welded and connected in a factory, and the floor channel steel beams and the upper module column and the ceiling channel steel beams and the lower module column can also be transported to a site to be respectively connected with bolts after being prefabricated in the factory. After the upper module column and the lower module column are aligned, the flange of the floor steel channel beam and the flange of the ceiling steel channel beam are oppositely arranged, the floor steel channel beam and the ceiling steel channel beam can be jointed to be connected in a linkage mode so as to enhance the integrity of the node, and the floor steel channel beam and the ceiling steel channel beam can leave a message for a certain interval and are not connected in a linkage mode.
In conclusion, the connection disclosed by the invention can complete the unlocking and self-locking process only by centering the upper module and the lower module and relying on self gravity, and does not need additional working procedures and operation space. The construction is simple, and the atress is clear and definite reliable, allows certain construction deviation, and is lower to workman's installation technique degree of dependence.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a modularization steel construction reverse self-locking post-post connected node which characterized in that: including last module post (1) and lower module post (2), at last module post (6) with lower module post (6) adjacent tip embedded lock box (2), lock box (5) under module post (6) and the adjacent tip embedding of last module post (1) down, when going up module post (1) and lower module post (6) centering installation, it is connected with locking box (5) down to go up lock box (2), realizes going up the rigid coupling of module post (1) and lower module post (6).
2. The modular steel structure reverse self-locking column-column connection node of claim 1, characterized in that: the upper lock box (2) is internally provided with a one-way opening plate (12) and a right-angle spring (7), the part of the one-way opening plate (12) for opening and closing is defined as the surface of the one-way opening plate (12), two hinge plates of the one-way opening plate (12) are symmetrically hinged on the inner wall of the lock box through hinge rods respectively, and a gap is reserved between the two hinge plates;
the right-angle springs (7) are respectively fixed on the two hinge plates, the right-angle supporting wires (15) at one ends of the right-angle springs (7) are welded on the hinge plates, and the right-angle supporting wires (15) at the other ends of the right-angle springs (7) are welded on the inner wall of the upper lock box (2).
3. The modular steel structure reverse self-locking column-column connection node of claim 2, characterized in that: an annular fixing plate (13) is attached to the bottom surface of the one-way opening plate (12), and the wall of the annular fixing plate (13) is welded on the inner wall of the upper lock box (2).
4. The modular steel structure reverse self-locking column-column connection node of claim 3, wherein: a supporting plate (11), a positioning plate (10) and a shear resistant lock core plate (9) are installed in the lower lock box (5), the end part of the supporting plate (11) adjacent to the upper lock box (2) is defined as the top, the center of the shear resistant lock core plate (9) is fixed to the top of the supporting plate (11), the shear resistant lock core plate (9) and the supporting plate (11) are vertically arranged, and the positioning plate (10) is vertically installed at the position, close to the shear resistant lock core plate (9), on the supporting plate (11).
5. The modular steel structure reverse self-locking column-column connection node of claim 4, wherein: the distance between the shear lock core plate (9) and the positioning plate (10) is equal to the sum of the thicknesses of the one-way split plate (12) and the annular fixing plate (13);
the gap between the two hinge plates is matched with the thickness of the supporting plate (11).
6. The modular steel structure reverse self-locking column-column connection node of claim 4, wherein: the surface area of the shear-resistant lock core plate (9) is smaller than the area of the inner cavity of the annular fixing plate (13), and meanwhile, the surface area of the shear-resistant lock core plate (9) is smaller than the area formed when the one-way opening plate (12) is closed.
7. The modular steel structure reverse self-locking column-column connection node of claim 4, wherein: the positioning plate further comprises at least one stiffening plate (14), the at least one stiffening plate (14) vertically penetrates through the supporting plate (11), and meanwhile, the at least one stiffening plate (14) is also vertical to the positioning plate (10).
8. The modular steel structure reverse self-locking column-column connection node of claim 4, wherein: still include horizontal connecting piece (8), the module post (1) stretches out in foretell lock box (2) and the tip that lower module post (6) are adjacent, when lock box (2) and lock box (5) centering connection down, lock box (2) and lock the box (5) down between form the clearance, the clearance is filled through horizontal connecting piece (8).
9. A connecting method of a modular steel structure reverse self-locking column-column connecting joint based on any one of claims 5 to 8 is characterized in that: the method specifically comprises the following steps:
step S1: an upper lock box (2) and a lower lock box (5) are prefabricated in a factory, the upper lock box (2) is embedded into the opening end of an upper module column (1), the lower lock box (5) is embedded into the opening end of a lower module column (6), and the upper lock box (2), the lower lock box (5) and a horizontal connecting piece (8) are transported to a construction site;
step S2: connecting the prefabricated lower module column (6) with a lower unit, and installing a horizontal connecting piece (8) and the lower module in a centering way;
step S3: starting a crane, and aligning the end part of the prefabricated upper module column (1) provided with the upper lock box (2) with the lower module column (6);
step S4: the upper lock box (2) is aligned to the lower lock box (5), the shear-resistant lock core plate (9) pushes the hinge plate to open towards the wall of the upper lock box (2), and the shear-resistant lock core plate (9) penetrates through the one-way opening plate (12);
step S5: continuously starting the crane, completely covering the dead weight of the upper module column (1) on the lower module column (6), closing the hinge plate again, tightly attaching the surface of the shear-resistant lock core plate (9) to the surface of the one-way opening plate (12), and connecting the upper module column (1) with the lower module column (6);
if the upper module column (1) and the lower module column (6) need to be separated, the crane is started again to lift the upper module column (1), the two hinge plates are reopened, the shear-resistant lock core plate (9) is withdrawn from the upper lock box (2), and then the upper module and the lower module column (6) can be separated.
10. The method for connecting the modular steel structure reverse self-locking column-column connecting joint according to claim 9, wherein the method comprises the following steps: the two sides of the upper module column (1) are respectively welded and fixed with a floor channel steel beam (18), the two sides of the lower module column (6) are respectively welded and fixed with a ceiling channel steel beam (17), and after the upper module column (1) and the lower module column (6) are centered, the flange of the floor channel steel beam (18) and the flange of the ceiling channel steel beam (17) are arranged oppositely.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115233816A (en) * | 2022-07-11 | 2022-10-25 | 江苏博厦矿山科技有限公司 | Automatic opening and closing interpolation type modular steel pipe column connecting node and installation method |
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| CN115233816A (en) * | 2022-07-11 | 2022-10-25 | 江苏博厦矿山科技有限公司 | Automatic opening and closing interpolation type modular steel pipe column connecting node and installation method |
| CN115233816B (en) * | 2022-07-11 | 2024-01-30 | 江苏博厦矿山科技有限公司 | Automatic opening and closing internal insertion type modularized steel pipe column connecting node and installation method |
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| CN114277929B (en) | 2023-11-03 |
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