CN214738848U - Connecting structure of suspension post and truss - Google Patents
Connecting structure of suspension post and truss Download PDFInfo
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- CN214738848U CN214738848U CN202121029876.0U CN202121029876U CN214738848U CN 214738848 U CN214738848 U CN 214738848U CN 202121029876 U CN202121029876 U CN 202121029876U CN 214738848 U CN214738848 U CN 214738848U
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Abstract
The utility model discloses a davit and truss connection structure relates to the steel truss technical field of architectural steel structure engineering, and the technical problem of solution provides a safe and reliable's davit and truss connection structure. The utility model adopts the technical proposal that: the hanging post and truss connecting structure comprises a truss, a hanging post and a connecting vertical rod, wherein the truss comprises a lower chord which is fixedly connected with the upper end of the connecting vertical rod; the upper end of the suspension post is fixedly provided with a bottom plate, the lower end of the connecting vertical rod is fixedly connected with the top surface of the bottom plate, and the axis of the connecting vertical rod coincides with the axis of the suspension post. The davit is connected through the bottom plate with connecting the montant, connects firmly, does benefit to the control connection quality to ensure the davit and connect the firm between the montant. The upper end of the suspension post is provided with a cross stiffening plate for reinforcement, and the suspension post and the bottom plate are connected firmly. And a stiffening plate is arranged between the connecting vertical rod and the bottom plate, and the connecting vertical rod and the bottom plate are connected stably. The utility model is suitable for a connection of large-span steel truss davit.
Description
Technical Field
The utility model belongs to the technical field of the steel truss of architectural steel structure engineering, specifically a connection structure of davit and truss.
Background
The truss is a plane or space position structure with triangular units, which mainly comprises a truss lower chord, an truss upper chord, diagonal web members, vertical rods and the like. Under the load effect, the truss rod piece mainly bears axial tension or pressure, so that the strength of materials can be fully utilized, the material is saved compared with a real web beam when the span is large, the self weight is reduced, the rigidity is increased, and a large space structure can be well realized. The suspension post structure is mainly suitable for buildings such as stadiums, exhibition centers and the like, and is used for replacing and reducing space columns so as to obtain larger construction space and meet the requirements of the use functions of the buildings.
The connecting node of the mid-span and lower-chord node of the large-span steel truss has enough axial tensile capacity to ensure that the strength of the node is greater than the tensile strength of the member and meet the requirements of the strong node and the weak member, but the out-of-plane rigidity of the node is as small as possible, and the rotary radius of the node in each direction is as small as possible so as to avoid bringing additional bending moment to the main truss.
The patent with the publication number of CN 201962849U discloses a steel truss and suspension post hinge device, which comprises a steel truss and a suspension post arranged at the lower end of the steel truss, wherein a cross plate node is arranged between the steel truss and the suspension post, and the cross plate node is respectively welded and fixed with the steel truss and the suspension post. The cross plate node comprises a long rib plate and a short rib plate, and the cross plate node is fixed with the suspension posts in a welding mode downwards. The top of davit and cross board node direct weld are fixed, and davit and cross board nodal connection department become the weak link, and the davit top is out of shape and influence welding quality probably appears to bury down the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a safe and reliable's davit and truss connection structure is provided.
The utility model provides a technical scheme that its technical problem adopted is: the hanging post and truss connecting structure comprises a truss, a hanging post and a connecting vertical rod, wherein the truss comprises a lower chord which is fixedly connected with the upper end of the connecting vertical rod; the upper end of the suspension post is fixedly provided with a bottom plate, the lower end of the connecting vertical rod is fixedly connected with the top surface of the bottom plate, and the axis of the connecting vertical rod coincides with the axis of the suspension post.
Further, the method comprises the following steps: the hanging column is a steel pipe, a cross stiffening plate is arranged inside the upper end of the hanging column, and the cross stiffening plate is respectively welded and fixed with the inner wall of the hanging column and the bottom surface of the bottom plate.
Further, the method comprises the following steps: and an inner ring plate is arranged at the lower end of the cross stiffening plate and inside the hanging column, and the inner ring plate is welded and fixed with the cross stiffening plate and the inner wall of the hanging column.
Or the hanging column is a steel pipe, four notches arranged along the axial lead direction are formed in the upper end of the hanging column, the cross stiffening plates are placed in the four notches, the cross stiffening plates are connected with the hanging column in a welded mode at the notches, and stiffening structures are further arranged between the cross stiffening plates and the hanging column.
Specifically, the method comprises the following steps: the outer side of the hanging post is further provided with an outer ring plate, the inner diameter of the outer ring plate is matched with the outer diameter of the hanging post, the outer diameter of the outer ring plate is consistent with the width of the cross stiffening plate, the outer ring plate is located on the lower side of the cross stiffening plate, and the outer ring plate is welded and fixed with the cross stiffening plate and the hanging post respectively.
Further, the method comprises the following steps: the diameter of the bottom plate is larger than that of the connecting vertical rod, a stiffening plate is arranged between the outer wall of the connecting vertical rod and the bottom plate, and the stiffening plate is vertically arranged.
Further, the method comprises the following steps: the diameter of the bottom plate is 30-40 mm larger than that of the hanging columns, and the four stiffening plates correspond to the cross stiffening plates one by one.
Further, the method comprises the following steps: the truss also comprises an inclined web member and a vertical rod, the upper part of the lower chord member is connected with the vertical rod, and the two sides of the vertical rod are respectively provided with the inclined web member; the connecting vertical rod is positioned below the vertical rod, and the axis of the connecting vertical rod is coincided with the axis of the vertical rod.
Further, the method comprises the following steps: the upper end of the connecting vertical rod is provided with a groove matched with the shape of the lower chord, and the lower chord is positioned in the groove and is welded and connected.
Specifically, the method comprises the following steps: the lower chord is cylindrical, the groove at the upper end of the connecting vertical rod is arc-shaped, and the cross section of the connecting vertical rod is circular.
The utility model discloses davit and truss connection structure's beneficial effect is: the davit is connected through the bottom plate with connecting the montant, connects firmly, does benefit to the control connection quality to ensure the davit and connect the firm between the montant. The connecting node of the suspension posts and the truss is safe and reliable, has definite force transmission, simple structure and convenient construction.
The suspension posts are connected with the connecting vertical rods through the bottom plate, the bottom plate can be welded and fixed at the upper ends of the suspension posts or the lower ends of the connecting vertical rods in advance, and then the suspension posts are welded and connected. The contact area for connecting the suspension posts and the bottom plate is hardly influenced by the deformation of the suspension posts, so that the connection strength between the suspension posts and the bottom plate is convenient to control; the contact area of the connecting vertical rod and the bottom plate for connection is hardly influenced by the deformation of the connecting vertical rod, so that the connection strength between the connecting vertical rod and the bottom plate can be controlled conveniently.
The suspension posts are reinforced through the cross stiffening plates, so that the upper ends of the suspension posts are prevented from deforming, and the suspension posts are favorably and stably connected with the connecting vertical rods. The inner ring plate and the outer ring plate both have the function of strengthening the strength of the cross stiffening and the suspension column.
Drawings
Fig. 1 is a schematic view of the connection structure of the suspension post and the truss of the present invention.
Fig. 2 is a cross-sectional view taken along a-a of fig. 1.
Fig. 3 is a longitudinal sectional view in the direction B-B of fig. 1.
Fig. 4 is a schematic view of another embodiment of the suspension post and truss connection structure of the present invention.
Reference numerals: the hanging post comprises a hanging post 1, a connecting vertical rod 2, a lower chord 31, an inclined web member 32, a vertical rod 33, a bottom plate 4, a cross stiffening plate 5, an inner ring plate 6, an outer ring plate 7 and a stiffening plate 8.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses davit and truss connection structure is applicable to being connected of large-span steel truss downside and davit, including truss, davit 1 and connection montant 2, the truss includes lower chord 31, oblique web member 32 and montant 33, and montant 33 is connected on lower chord 31's upper portion, and the both sides of montant 33 set up oblique web member 32 respectively. The connecting vertical rod 2 is positioned below the vertical rod 33, and the upper end of the connecting vertical rod 2 is fixedly connected with the lower chord 31. The connecting vertical rod 2 is vertical, and the connecting vertical rod 2 can be arranged at any position of the bottom of the lower chord 31, for example, the axis of the connecting vertical rod 2 coincides with the axis of the vertical rod 33. The upper end of the connecting vertical rod 2 is firmly connected with the lower chord 31, for example, welded. In order to ensure that the welded vertical rod 2 meets the strength requirement, the upper end of the connecting vertical rod 2 is provided with a groove matched with the shape of the lower chord 31, and the lower chord 31 is positioned in the groove and is welded and connected. For example, the lower chord 31 is cylindrical, the groove at the upper end of the connecting vertical rod 2 is arc-shaped, that is, a semi-cylindrical groove is arranged at the upper end of the connecting vertical rod 2, the diameter of the semi-cylindrical groove is consistent with that of the lower chord 31, and the lower half part of the lower chord 31 is arranged in the groove of the connecting vertical rod 2 and is welded. The connecting vertical rod 2 can be solid or hollow tube, when the connecting vertical rod 2 is hollow tube, the cross section of the connecting vertical rod 2 can be rectangular ring, circular ring or other shapes and rings, but is generally circular ring.
The upper end of the suspension post 1 is fixedly provided with a bottom plate 4, for example, the suspension post 1 and the bottom plate 4 are connected by welding, or the upper end of the suspension post 1 is provided with a disc, and the disc is connected with the bottom plate 4 by bolts. The lower end of the connecting vertical rod 2 is fixedly connected with the top surface of the bottom plate 4, for example, the connecting vertical rod 2 is welded with the bottom plate 4, or the lower end of the connecting vertical rod 2 is provided with a disc, and the disc is connected with the bottom plate 4 through a bolt. The axis of the connecting vertical rod 2 coincides with the axis of the suspension post 1, so that the eccentric phenomenon after connection is avoided. The diameter of bottom plate 4 is greater than the diameter of davit 1, also is greater than the diameter of connecting montant 2 to davit 1 and connecting montant 2 are connected through bottom plate 4, and for example, the diameter of bottom plate 4 is 30 ~ 40mm bigger than the diameter of davit 1.
In order to improve the strength of the connecting vertical rod 2 and the bottom plate 4 after connection, a stiffening plate 8 is arranged between the outer wall of the connecting vertical rod 2 and the bottom plate 4, and the stiffening plate 8 is vertically arranged. The stiffening plates 8 can be arranged into four pieces, and the central angles are arranged in an equal manner, as shown in fig. 1-3.
In order to improve the strength of the connected suspension post 1 and the bottom plate 4, a stiffening structure is arranged at the position where the suspension post 1 is connected with the bottom plate 4, namely the upper end of the suspension post 1. For example, the suspension post 1 is a steel pipe, the cross stiffening plate 5 is arranged inside the upper end of the suspension post 1, the cross stiffening plate 5 is cross-shaped in cross section, and the cross stiffening plate 5 is respectively welded and fixed with the inner wall of the suspension post 1 and the bottom surface of the bottom plate 4. The cross stiffening plate 5 is arranged on the inner wall of the suspension post 1, and is suitable for the condition that the cross section of the suspension post 1 is large in diameter and the internal space position is convenient for welding construction. In order to further improve the stability of the cross stiffening plate 5, an inner ring plate 6 is arranged at the lower end of the cross stiffening plate 5 and inside the suspension post 1, and the inner ring plate 6 is welded and fixed with the cross stiffening plate 5 and the inner wall of the suspension post 1.
When the cross-sectional diameter of the suspension post 1 is small and it is inconvenient to weld in the suspension post 1, another scheme for reinforcing the suspension post 1 may be adopted. As shown in fig. 4, the suspension post 1 is a steel pipe, four notches are arranged at the upper end of the suspension post 1 along the axial lead direction, a central angle formed by two adjacent notches and the axial lead of the suspension post 1 is a right angle, the width of each notch is consistent with the thickness of the cross stiffening plate 5, the width of each cross stiffening plate 5 is larger than the outer diameter of the suspension post 1, the cross stiffening plates 5 are arranged in the four notches, and the cross stiffening plates 5 are welded with the suspension post 1 at the notches. In order to further improve the strength of the cross stiffening plate 5 and the suspension post 1, a stiffening structure is further arranged between the cross stiffening plate 5 and the suspension post 1. For example, an outer ring plate 7 is further provided on the outer side of the suspension post 1, the inner diameter of the outer ring plate 7 matches the outer diameter of the suspension post 1, the outer diameter of the outer ring plate 7 matches the width of the cross stiffening plate 5, as shown in fig. 4, the outer ring plate 7 is located below the cross stiffening plate 5, and the outer ring plate 7 is welded and fixed to the cross stiffening plate 5 and the suspension post 1, respectively.
When the upper end of the suspension post 1 is reinforced by the cross stiffening plate 5, the stiffening plates 8 between the connecting vertical rod 2 and the bottom plate 4 are preferably in one-to-one correspondence with the positions of the cross stiffening plates 5.
Claims (10)
1. The structure for connecting the suspension posts and the truss comprises the truss, the suspension posts (1) and a connecting vertical rod (2), wherein the truss comprises a lower chord (31), and the lower chord (31) is fixedly connected with the upper end of the connecting vertical rod (2); the method is characterized in that: the upper end of the suspension post (1) is fixedly provided with a bottom plate (4), the lower end of the connecting vertical rod (2) is fixedly connected with the top surface of the bottom plate (4), and the axial lead of the connecting vertical rod (2) coincides with the axial lead of the suspension post (1).
2. The suspension post and truss connection structure of claim 1, wherein: the hanging column (1) is a steel pipe, the cross stiffening plate (5) is arranged inside the upper end of the hanging column (1), and the cross stiffening plate (5) is respectively welded and fixed with the inner wall of the hanging column (1) and the bottom surface of the bottom plate (4).
3. The suspension post and truss connection structure of claim 2, wherein: an inner ring plate (6) is arranged inside the suspension post (1) at the lower end of the cross stiffening plate (5), and the inner ring plate (6) is welded and fixed with the cross stiffening plate (5) and the inner wall of the suspension post (1).
4. The suspension post and truss connection structure of claim 1, wherein: the hanging column (1) is a steel pipe, four notches arranged along the axial lead direction are formed in the upper end of the hanging column (1), the cross stiffening plates (5) are arranged in the four notches, the cross stiffening plates (5) are welded with the hanging column (1) at the notches, and stiffening structures are further arranged between the cross stiffening plates (5) and the hanging column (1).
5. The suspension post and truss connection structure of claim 4, wherein: the outer side of the hanging post (1) is further provided with an outer ring plate (7), the inner diameter of the outer ring plate (7) is matched with the outer diameter of the hanging post (1), the outer diameter of the outer ring plate (7) is consistent with the width of the cross stiffening plate (5), the outer ring plate (7) is located on the lower side of the cross stiffening plate (5), and the outer ring plate (7) is welded and fixed with the cross stiffening plate (5) and the hanging post (1) respectively.
6. The suspension post and truss connection structure as claimed in any one of claims 1 to 5, wherein: the diameter of the bottom plate (4) is larger than that of the connecting vertical rod (2), a stiffening plate (8) is arranged between the outer wall of the connecting vertical rod (2) and the bottom plate (4), and the stiffening plate (8) is vertically arranged.
7. The suspension post and truss connection structure of claim 6, wherein: the diameter of the bottom plate (4) is 30-40 mm larger than that of the hanging columns (1), and the four stiffening plates (8) correspond to the cross stiffening plates (5) one by one.
8. The suspension post and truss connection structure as claimed in any one of claims 1 to 5, wherein: the truss also comprises an oblique web member (32) and a vertical rod (33), the upper part of the lower chord member (31) is connected with the vertical rod (33), and the two sides of the vertical rod (33) are respectively provided with the oblique web member (32); the connecting vertical rod (2) is positioned below the vertical rod (33), and the axial lead of the connecting vertical rod (2) is superposed with the axial lead of the vertical rod (33).
9. The suspension post and truss connection structure of claim 8, wherein: the upper end of the connecting vertical rod (2) is provided with a groove matched with the shape of the lower chord (31), and the lower chord (31) is positioned in the groove and is welded and connected.
10. The suspension post and truss connection structure of claim 9, wherein: the lower chord (31) is cylindrical, the groove at the upper end of the connecting vertical rod (2) is arc-shaped, and the cross section of the connecting vertical rod (2) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029876.0U CN214738848U (en) | 2021-05-13 | 2021-05-13 | Connecting structure of suspension post and truss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029876.0U CN214738848U (en) | 2021-05-13 | 2021-05-13 | Connecting structure of suspension post and truss |
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| Publication Number | Publication Date |
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| CN214738848U true CN214738848U (en) | 2021-11-16 |
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| CN202121029876.0U Active CN214738848U (en) | 2021-05-13 | 2021-05-13 | Connecting structure of suspension post and truss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592607A (en) * | 2022-05-09 | 2022-06-07 | 中国航空规划设计研究总院有限公司 | Large-span roof system inclined truss lower chord bending intersecting joint |
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2021
- 2021-05-13 CN CN202121029876.0U patent/CN214738848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592607A (en) * | 2022-05-09 | 2022-06-07 | 中国航空规划设计研究总院有限公司 | Large-span roof system inclined truss lower chord bending intersecting joint |
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