CN111576616A - Easily splice building steel structure support - Google Patents
Easily splice building steel structure support Download PDFInfo
- Publication number
- CN111576616A CN111576616A CN202010561398.1A CN202010561398A CN111576616A CN 111576616 A CN111576616 A CN 111576616A CN 202010561398 A CN202010561398 A CN 202010561398A CN 111576616 A CN111576616 A CN 111576616A
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- Prior art keywords
- rods
- longitudinal
- poles
- rod
- transverse
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a building steel structure support easy to splice, which structurally comprises transverse rods, longitudinal rods, side rods and inserting rods, wherein open slots are formed in the longitudinal rods, the two transverse rods are respectively inserted into two sides of the open slots of the longitudinal rods to enable the positions of the two transverse rods and the position of one longitudinal rod to be fixed, the two transverse rods are horizontally arranged and are tightly matched with each other to achieve horizontal fixation, corresponding buckle parts are arranged on the bottom surfaces of the transverse rods and the open slots, the longitudinal rods and one transverse rod are tightly connected through the buckle parts to achieve vertical fixation of the transverse rods on the longitudinal rods, stress points of the transverse rods and the longitudinal rods are the transverse rods and the longitudinal rods, the building steel structure support is firm and durable, nodes connected after stress of the transverse rods and the longitudinal rods do not need to deform, structural fixation formed by welding is not relied, and welding-free fixation can be realized by depending on self structures.
Description
Technical Field
The invention relates to a building steel structure support easy to splice, and belongs to the field of building structures.
Background
In recent years, steel structure buildings are gradually and widely popularized and applied with the advantages of short construction period, high industrial degree, good earthquake resistance and the like, in the steel structure buildings, the connecting structure of the H-shaped steel beam and the upright column is a key part of the overall structural strength of the building, and is also the installation node with the largest quantity in the building construction, and how to further improve the reliability of the connection at the position is always the key point of the construction design of steel structure technicians.
Most of the prior art still realizes the fixed of steelframe through the welded mode, but the welded effect is influenced by people and environment too greatly, if the insufficient easy rosin joint that appears of welded skill level, make the support body collapse or welding paint vehicle unqualified quality also will take place the accident, and some prior art fix through not welding, for example application number 201620957719.9's a many high-rise building steel structure frame, but this technique realizes the fixed of frame through hardware such as the gusset cooperation bolt of a plurality of connections, its stress point is on these parts, easily take place the deformation under the exogenic action, and it is comparatively troublesome at the installation, be difficult to splice the installation fast.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme: an easy-to-splice construction steel structure support comprises transverse rods, longitudinal rods, side rods and inserted rods, wherein open slots are formed in the longitudinal rods, the two transverse rods are respectively inserted into two sides of the open slots of the longitudinal rods to enable the positions of the two transverse rods and the longitudinal rods to be fixed, the two transverse rods are horizontally installed and are in close fit with each other to achieve horizontal fixation, corresponding buckle parts are arranged on the bottom surfaces of the transverse rods and the open slots, the longitudinal rods and one transverse rod are tightly connected through the buckle parts to achieve vertical fixation of the transverse rods on the longitudinal rods, the side surfaces of the side rods inserted into the longitudinal rods are vertical, the inserted rods are inserted into included angles between the side rods and the longitudinal rods to enable the side rods and the longitudinal rods to be vertically fixed, inserted rod clamping grooves are further formed in the middle portions of the inserted rods, and the inserted rod clamping grooves of the two inserted rods are mutually and staggered and embedded, so that the inserted rod is fixed in an X shape.
In order to optimize the technical scheme, the method further comprises the following steps:
according to a preferred mode, the buckling component comprises cross rod convex blocks arrayed on the bottom surfaces of the cross rods and longitudinal rod convex blocks arrayed in the open grooves, gaps among the longitudinal rod convex blocks are smaller than the width of the cross rod convex blocks, the cross rod convex blocks of the cross rods are tightly embedded into the gaps among the longitudinal rod convex blocks of the open grooves, and the cross rods are vertically fixed on the longitudinal rods.
According to a preferred mode, the vertical pole is "H" form, the inner wall of vertical pole upside is equipped with conical horizontal pole draw-in groove, one side of horizontal pole is equipped with left fixture block, left side fixture block still has the last fixture block of toper form, and the width of going up the fixture block is greater than horizontal pole draw-in groove width, through inserting left fixture block between open slot and another horizontal pole to thereby closely imbed horizontal pole draw-in groove through last fixture block and obtain spacing fixedly at the position of vertical pole.
According to a preferred mode, the left lower side of the cross rod is further provided with a lower slot and a lower clamping groove in a conical shape, the right lower side of the cross rod is provided with a lower inserting block and a lower clamping block in a conical shape, the width of the lower clamping block is larger than that of the lower clamping groove, and the lower inserting block of the cross rod is inserted into the lower slot of the other cross rod, so that the lower clamping block and the lower clamping groove are fixed tightly, and the two cross rods are fixed horizontally.
According to a preferred mode, the side of vertical pole still is equipped with the breach of triangle-shaped, and be equipped with square protruding on the breach, protruding hole groove that has the inclination, the side lever both ends are the triangle-shaped that corresponds with the breach, and the side lever still is equipped with corresponding bellied square groove, still be equipped with the jack with the same inclination in hole groove on the square groove.
According to a preferable mode, the inserting bar is provided with inserting bars with the same inclination as the hole grooves and the inserting holes, and the inserting bars are inserted between the side bars and the vertical bars and penetrate through the inserting holes and extend into the hole grooves, so that the vertical installation of the side bars and the vertical bars is fixed.
Advantageous effects
The invention does not need to use hardware parts for connection in the installation process, the installation process is rapid and quick, and the nodes are respectively and correspondingly inserted into the notches, so that the invention is simple and easy to understand and is convenient for constructors to operate.
The stress point of the transverse rods and the longitudinal rods is the transverse rods and the longitudinal rods, so that the transverse rods and the longitudinal rods are firm and durable, and the connected nodes do not need to be deformed after stress.
After the side rods and the inserted rods are installed, two groups of transverse rods and longitudinal rods are fixedly connected, and the steel frame structure can be formed by splicing multiple groups through the fixed limit of the side rods and the inserted rods, so that a stable steel frame plane is formed.
The invention does not depend on the structural fixation formed by welding, and can realize the fixation without welding by depending on the self structure.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic perspective view of a steel structure support for a building, which is easy to splice.
Fig. 2 is a schematic top view of the cross bar and the side bar of the present invention.
Fig. 3 is a schematic view of the installation structure of fig. 2 according to the present invention.
FIG. 4 is a schematic view of the three-dimensional structure of the vertical bar, the side bar and the inserted bar.
FIG. 5 is a schematic view of the split three-dimensional structure of the vertical rod, the side rod and the inserted rod of the present invention.
FIG. 6 is a side view of the structure of FIG. 4 according to the present invention.
FIG. 7 is a side view of the structure of FIG. 5 according to the present invention.
Fig. 8 is a schematic perspective view of the insert rod of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 8, the present invention provides a building steel structure support easy to splice: the structure of the device comprises a cross rod 1, a longitudinal rod 2, side rods 3 and an inserted rod 4, wherein the longitudinal rod 2 is provided with an open slot 203, two cross rods 1 are respectively inserted into two sides of the open slot 203 of the longitudinal rod 2 to enable the positions of the two cross rods 1 and the longitudinal rod 2 to be fixed, the two cross rods 1 are horizontally arranged and are tightly matched with each other to achieve horizontal fixation, the bottom surface of each cross rod 1 and the open slot 203 are respectively provided with a corresponding buckle part, the longitudinal rod 2 is tightly connected with one of the cross rods 1 through the buckle part to achieve the vertical fixation of the cross rod 1 on the longitudinal rod 2, the side surface of the side rod 3 inserted into the longitudinal rod 2 is vertical, the inserted rod 4 is inserted into an included angle between the side rod 3 and the longitudinal rod 2 to enable the side rod 3 and the longitudinal rod 2 to be vertically fixed, the middle part of the inserted rod 4 is also provided with an inserted rod slot 41, and the inserted rod slots 41 of the two inserted rods 4 are mutually, so that the inserted bar 4 is fixed in an X shape.
The buckling part comprises cross rod lugs 105 arrayed on the bottom surface of the cross rod 1 and longitudinal rod lugs 202 arrayed in the open slot 203, the gap between the longitudinal rod lugs 202 is smaller than the width of the cross rod lugs 105, and the cross rod lugs 105 of the cross rod 1 are tightly embedded into the gap between the longitudinal rod lugs 202 of the open slot 203, so that the cross rod 1 is vertically fixed on the longitudinal rod 2.
The utility model discloses a horizontal pole, including vertical pole 2, left fixture block 101, upper fixture block 102, horizontal pole draw-in groove 201, horizontal pole 1, left fixture block 101, horizontal pole draw-in groove 201, horizontal pole 2 is "H" form, the inner wall of vertical pole 2 upside is equipped with toper horizontal pole draw-in groove 201, one side of horizontal pole 1 is equipped with left fixture block 101, left side fixture block 101 still has the last fixture block 102 of toper form, and the width of going up fixture block 102 is greater than horizontal pole draw-in groove 201 width, through inserting left fixture block 101 between open slot 203 and another horizontal pole 1.
The left lower side of the cross rod 1 is further provided with a lower slot 103 and a conical lower clamping slot 104, the right lower side of the cross rod 1 is provided with a lower inserting block 106 and a conical lower clamping block 107, the width of the lower clamping block 107 is larger than that of the lower clamping slot 104, and the lower inserting block 106 of one cross rod 1 is inserted into the lower slot 103 of the other cross rod 1, so that the lower clamping block 107 and the lower clamping slot 104 are tightly fixed, and the two cross rods 1 are horizontally fixed.
The side of vertical pole 2 still is equipped with the breach 23 of triangle-shaped, and be equipped with square protruding 21 on the breach 23, protruding 21 has the hole groove 22 of inclination, side lever 3 both ends are the triangle-shaped that corresponds with breach 23, and side lever 3 still is equipped with the square groove 31 that corresponds protruding 21, still be equipped with the jack 32 with the same inclination of hole groove 22 on the square groove 31.
The inserting bar 4 is provided with an inserting bar 41 with the same inclination as the hole groove 22 and the inserting hole 32, and the inserting bar 41 is inserted between the side bar 3 and the vertical bar 2, so that the inserting bar 41 penetrates through the inserting hole 32 and extends into the hole groove 22, and the vertical installation of the side bar 3 and the vertical bar 2 is fixed.
The working principle is as follows: by inserting the side of the crossbar 1 with the crossbar projections 105 into the open grooves 203 of the longitudinal bars 2 and making the crossbar projections 105 thereof correspond to the gaps between the longitudinal bar projections 202, the crossbar projections 105 are tightly inserted into the gaps between the longitudinal bar projections 202 by means of, for example, hammering, so that the crossbar 1 cannot be pulled out from the longitudinal bars 2, and the left fixture block 101 of the other crossbar 1 is inserted into the gap between the previous crossbar 1 and the opening groove 203, the upper fixture block 102 is tightly inserted into the crossbar clamping groove 201 by beating with a hammer, the structure ensures that the rear-connected transverse rod 1 and the longitudinal rod 2 are fixed, and simultaneously, the left clamping block 101 of the rear-connected transverse rod 1 fills the gap between the front transverse rod 1 and the open slot 203, so as to avoid the falling of the transverse rod convex block 105 and the longitudinal rod convex block 202 after the front transverse rod 1 is stressed, meanwhile, the lower insert block 106 is inserted into the lower slot 103, and the lower fixture block 107 is tightly inserted into the lower fixture slot 104, so that the front and rear cross bars 1 are fixed; through aiming at breach 23 and the protruding 21 of vertical pole 2 with side lever 3, protruding 21 will insert square groove 31, and the rethread inserts the cutting 41 of inserted bar 4 in jack 32 to the hole groove 22 for side lever 3 just can't move back from vertical pole 2, thereby vertical pole 2 and side lever 3 obtain fixedly, and utilize the draw-in groove 41 of two inserted bars 4 crisscross each other and two side levers 3 about and, make vertical pole 2, side lever 3, inserted bar 4 three obtain closely fixedly.
After the installation and splicing are completed, the steel frame structure can be further reinforced by connecting and fixing the nodes of each installation in a welding mode again.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.
Claims (6)
1. The utility model provides an easily splice building steel structure support which characterized in that: the structure of the vertical pole comprises transverse poles (1), longitudinal poles (2), side poles (3) and inserting poles (4), wherein open slots (203) are formed in the longitudinal poles (2), two transverse poles (1) and one longitudinal pole (2) are fixed by respectively inserting the transverse poles (1) into two sides of the open slots (203) of the longitudinal poles (2), the transverse poles (1) are horizontally installed and are tightly matched with each other to achieve horizontal fixation, corresponding buckle parts are arranged on the bottom surfaces of the transverse poles (1) and the open slots (203), the longitudinal poles (2) are tightly connected with one transverse pole (1) through the buckle parts to achieve vertical fixation of the transverse poles (1) on the longitudinal poles (2), the side faces, inserted into the longitudinal poles (2), of the side poles (3) are vertical, and included angles between the side poles (3) and the longitudinal poles (2) are inserted into the inserting poles (4), the side rods (3) and the longitudinal rods (2) are vertically fixed, the middle parts of the inserted rods (4) are also provided with inserted rod clamping grooves (41), and the inserted rods (4) are fixed in an X shape by mutually embedding the inserted rod clamping grooves (41) of the two inserted rods (4) in a staggered manner.
2. The easy-to-splice construction steel structure bracket as claimed in claim 1, wherein: the buckling component comprises cross rod convex blocks (105) arrayed on the bottom surface of the cross rod (1) and longitudinal rod convex blocks (202) arrayed in the open groove (203), the gap between the longitudinal rod convex blocks (202) is smaller than the width of the cross rod convex blocks (105), and the cross rod convex blocks (105) of the cross rod (1) are tightly embedded into the gap between the longitudinal rod convex blocks (202) of the open groove (203), so that the cross rod (1) is vertically fixed on the longitudinal rod (2).
3. The easy-to-splice construction steel structure bracket as claimed in claim 2, wherein: the utility model discloses a horizontal pole (1) of building, including vertical pole (2), left fixture block (101), upper fixture block (102) of left side fixture block (101), and the width of upper fixture block (102) is greater than horizontal pole draw-in groove (201), through inserting left fixture block (101) between open slot (203) and another horizontal pole (1) to thereby closely imbed horizontal pole draw-in groove (201) through upper fixture block (102) and obtain spacing fixedly in the position of vertical pole (2) horizontal pole (1), the inner wall of vertical pole (2) upside is equipped with conical horizontal pole draw-in groove (201), one side of horizontal pole (1) is equipped with left fixture block (101), left side fixture block (101) have last fixture block (102) of toper form.
4. The easy-to-splice construction steel structure bracket as claimed in claim 1, wherein: the left lower side of the cross rod (1) is further provided with a lower slot (103) and a lower clamping groove (104) in a conical shape, the right lower side of the cross rod (1) is provided with a lower inserting block (106) and a lower clamping block (107) in a conical shape, the width of the lower clamping block (107) is larger than that of the lower clamping groove (104), the lower inserting block (106) of the cross rod (1) is inserted into the lower slot (103) of the other cross rod (1), and the lower clamping block (107) and the lower clamping groove (104) are tightly fixed, so that the two cross rods (1) are horizontally fixed.
5. The easy-to-splice construction steel structure bracket as claimed in claim 1, wherein: the side of vertical pole (2) still is equipped with breach (23) of triangle-shaped, and be equipped with square protruding (21) on breach (23), protruding (21) have hole groove (22) of inclination, side lever (3) both ends are the triangle-shaped that corresponds with breach (23), and side lever (3) still are equipped with square groove (31) that correspond protruding (21), still be equipped with on square groove (31) with hole groove (22) same inclination jack (32).
6. The easy-to-splice construction steel structure bracket as claimed in claim 5, wherein: the inserting rod (4) is provided with inserting strips (41) with the same inclination as the hole grooves (22) and the inserting holes (32), and the inserting strips (41) are inserted between the side rods (3) and the longitudinal rods (2) to enable the inserting strips (41) to penetrate through the inserting holes (32) and extend into the hole grooves (22), so that the side rods (3) and the longitudinal rods (2) are vertically installed and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561398.1A CN111576616B (en) | 2020-06-18 | 2020-06-18 | Easily splice building steel structure support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561398.1A CN111576616B (en) | 2020-06-18 | 2020-06-18 | Easily splice building steel structure support |
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| Publication Number | Publication Date |
|---|---|
| CN111576616A true CN111576616A (en) | 2020-08-25 |
| CN111576616B CN111576616B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010561398.1A Active CN111576616B (en) | 2020-06-18 | 2020-06-18 | Easily splice building steel structure support |
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| CN (1) | CN111576616B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309285A (en) * | 2021-06-01 | 2021-08-27 | 徐州嘉联建设工程有限公司 | Combined steel structure net rack convenient for construction and combination method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100026206A (en) * | 2008-08-29 | 2010-03-10 | 김동호 | Assemble type latticed frame system and construction method applying the same |
| CN104213637A (en) * | 2014-08-11 | 2014-12-17 | 美国国绿投资集团 | Integrated type steel structure building |
| CN104482002A (en) * | 2014-10-11 | 2015-04-01 | 谭健民 | Column-beam connection component capable of being manually built and frame structure made of the same |
| CN108149799A (en) * | 2017-12-07 | 2018-06-12 | 同济大学 | Assembled joinery and its construction with diagonal brace |
| CN108999297A (en) * | 2018-09-19 | 2018-12-14 | 安徽建筑大学 | A kind of novel fabricated primary and secondary beam connecting node and attaching method thereof |
| CN110185156A (en) * | 2019-06-03 | 2019-08-30 | 中国林业科学研究院林业新技术研究所 | A kind of Tenon node enhancement device and its application method |
-
2020
- 2020-06-18 CN CN202010561398.1A patent/CN111576616B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100026206A (en) * | 2008-08-29 | 2010-03-10 | 김동호 | Assemble type latticed frame system and construction method applying the same |
| CN104213637A (en) * | 2014-08-11 | 2014-12-17 | 美国国绿投资集团 | Integrated type steel structure building |
| CN104482002A (en) * | 2014-10-11 | 2015-04-01 | 谭健民 | Column-beam connection component capable of being manually built and frame structure made of the same |
| CN108149799A (en) * | 2017-12-07 | 2018-06-12 | 同济大学 | Assembled joinery and its construction with diagonal brace |
| CN108999297A (en) * | 2018-09-19 | 2018-12-14 | 安徽建筑大学 | A kind of novel fabricated primary and secondary beam connecting node and attaching method thereof |
| CN110185156A (en) * | 2019-06-03 | 2019-08-30 | 中国林业科学研究院林业新技术研究所 | A kind of Tenon node enhancement device and its application method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309285A (en) * | 2021-06-01 | 2021-08-27 | 徐州嘉联建设工程有限公司 | Combined steel structure net rack convenient for construction and combination method thereof |
| CN113309285B (en) * | 2021-06-01 | 2022-06-24 | 徐州嘉联建设工程有限公司 | Combined steel structure net rack convenient for construction and combination method thereof |
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| Publication number | Publication date |
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| CN111576616B (en) | 2021-08-03 |
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