CN217379249U - Cast steel node structure for connecting three-way inhaul cables of beam string structure - Google Patents
Cast steel node structure for connecting three-way inhaul cables of beam string structure Download PDFInfo
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- CN217379249U CN217379249U CN202220893928.7U CN202220893928U CN217379249U CN 217379249 U CN217379249 U CN 217379249U CN 202220893928 U CN202220893928 U CN 202220893928U CN 217379249 U CN217379249 U CN 217379249U
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Abstract
The utility model provides a cast steel node structure for opening string beam structure three-dimensional cable is connected, including main cable connecting plate, auxiliary cable connecting plate, reinforcing plate and vaulting pole connector, main cable connecting plate and auxiliary cable connecting plate welding are in the same place, are fixed with two vaulting pole connectors in the welding department, the vaulting pole connector distributes in the both sides of main cable connecting plate and auxiliary cable connecting plate junction. The utility model discloses three-dimensional cable connection cast steel node will open string girder construction lower part vaulting pole and lower part three-dimensional cable and be connected with the round pin axle, makes five cables of opening string girder lower part constitute a whole and be drawn the structure, and the conversion and the connection of perfect solution three-dimensional cable atress make overall structure safety and stability more, and the installation and construction is more convenient, swift, saving time limit for a project simultaneously.
Description
Technical Field
The utility model belongs to the building engineering field, concretely relates to cast steel node structure for being connected by a string beam structure three-dimensional cable.
Background
The beam string structure is a novel large span structure different from the traditional structure. The beam string structure consists of a rigid upper string, a flexible inhaul cable and a V-shaped compression stay bar, is a self-balancing large-span prestressed space structure system, and is also a relatively successful creation in the development of a mixed structure system. In recent years, such structures are largely applied to structures such as large-span roofs in constructional engineering, but still have great advantages in the aspect of urban pedestrian bridge application with higher building configuration requirements due to novel construction and light and beautiful appearance.
The flexible guy cable is a core component in a beam string structure, the performance of the flexible guy cable is particularly important for the structure, and particularly under the trend that the requirements on the building configuration are higher and higher, more complex situations begin to appear. In the past, one main lock or a plurality of main locks are used as the lower chord tension main body of the whole string beam structure in parallel, and a three-way multi-cable combination form of converting one main cable into two auxiliary cables is also presented. In the three-way multi-cable combination form, the node of transition conversion from the main cable to the auxiliary cable is the heaviest, the node is in three-way tension, the cable body tension is large, and risks such as deformation and tension crack exist. The node structure disclosed in the prior art cannot solve the problem well, for example, CN201921859130.5, a cable clamp node for cables and struts in a beam string, and CN202120864161.0 a beam string node, do not ensure the strength of the node when the node is pulled in three directions.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cast steel node structure for being connected of beam string structure three-dimensional cable aims at solving the node when the three-dimensional atress, and the problem that anti tensile strength of anti deformation is not high, for realizing above-mentioned purpose, the technical scheme of the utility model as follows:
a cast steel node structure for connecting a three-way inhaul cable of a beam string structure comprises a main cable, two auxiliary cables and a compressed stay bar, and is characterized by comprising a main cable connecting plate, wherein one end of the main cable connecting plate is provided with a first pin shaft hole; the auxiliary cable connecting plate is a Y-shaped member and comprises a fixed connecting plate and two rotating connecting plates which are integrally connected, and second pin shaft holes are formed in the free ends of the rotating connecting plates; one end of the main rope connecting plate is welded with the free end of the fixed connecting plate, the two second pin shaft holes are respectively in one-to-one correspondence to be rotatably connected with the two auxiliary ropes, and the first pin shaft holes are rotatably connected with the main rope; the stay bar connectors are welded on two sides of the cast steel node connected with the three-way stay cable; the axial direction of the strut connector and the axial line of the compressed strut are coaxially arranged.
The utility model has the advantages that: the application provides a cast steel node structure for opening string girder construction three-dimensional cable is connected has main cable connecting plate and vice cable connecting plate, utilizes main cable connecting plate and vice cable connecting plate to be connected respectively and opens string girder construction lower part and put into main cable and two vice cable and lead to the atress conversion that realizes main cable to two vice cables, can satisfy the radial pivoted design demand of cable tip simultaneously. Meanwhile, the stay bar connector connects the compressed stay bar at the lower part of the beam string structure with the cast steel node through welding to form a rigid node, so that the upper load of the beam string structure is transmitted to the cast steel node through the stay bar, and the cast steel node and the two auxiliary cables form a hinged structure through a pin shaft, thereby completing the conversion from the pressure of the upper stay bar to the tensile force of the stay cable.
Furthermore, annular reinforcing plates are fixed on the outer sides of the first pin shaft hole and the second pin shaft hole.
The utility model discloses further beneficial effect is: the guy cable anchorage can be connected with the three-way cast steel node through the pin shaft, the installation is convenient and fast by utilizing the mode of pin shaft connection, the stability is strong, the guy cable and the cast steel node form a hinged structure in structural stress, the conversion of upper pressure and guy cable tension is realized, and the pin shaft hole can bear larger tension through the arrangement of the reinforcing plate.
Furthermore, one end of the main cable connecting plate and the free end of the fixed connecting plate are provided with inclined planes, and the main cable connecting plate and the free end of the fixed connecting plate are welded to form an integral structure with one arc-shaped side
The utility model discloses further beneficial effect is: the finally obtained cast steel node connected by the three-way stay cable presents a certain radian and is used for adapting to an arc formed by natural sagging between a main cable and an auxiliary cable at the lower part of a beam string structure.
Further, the included angle formed by the two rotating connecting plates of the auxiliary cable connecting plate is 16.6 degrees.
The utility model discloses further beneficial effect is: the included angle of the two rotary connecting plates is ensured to be matched with the two auxiliary cables.
Furthermore, the number of the stay bar connectors is two, and the stay bar connectors are respectively welded at two welding seams formed by welding the fixed connecting plate and the main cable connecting plate.
This use novel further beneficial effect is: the two brace rod connectors are correspondingly connected with the compressed brace rods below the beam string structure, so that the compressed brace rods and the cast steel nodes are connected into a rigid node through welding, and the upper load of the beam string structure is transmitted to the cast steel nodes through the brace rods.
Further, the vaulting pole connector is the cylinder, and one end is the scarf welding main rope connecting plate with the welding seam department of fixed connection board, the axis of vaulting pole connector is 26.4 with the acute angle contained angle beta that the welding seam at place formed.
Further, the axes of the two stay bar connectors and the side, in the same direction, of the main cable connecting plate surface at the side where the stay bar connectors are located form an obtuse angle r2 and an acute angle r1 respectively, the obtuse angle r2 is 125.3 degrees, and the acute angle r1 is 38.2 degrees.
The utility model discloses a further beneficial effect is: the stress stay bar which is better adapted to the lower end of the beam string structure is welded with the stress stay bar to form a rigid node, so that the upper load of the beam string structure is transmitted to the three-way cast steel node through the stay bar, the three-way cast steel node and the three auxiliary cables form a hinged structure through pin shafts, and the conversion from the pressure of the upper stay bar to the tension of the stay cable is completed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a cast steel node connected by a three-way cable according to an embodiment of the present invention
FIG. 2 is a front view of the cast steel node that the three-way cable connects in the embodiment of the utility model
FIG. 3 is a plan view of the cast steel node connected by the three-way cable in the embodiment of the present invention
FIG. 4 is a front view of the embodiment of the present invention showing the connection between the cast steel node and the compression brace
FIG. 5 is a top view of the embodiment of the present invention showing the connection between the steel-cast joint and the compression brace
FIG. 6 is the embodiment of the present invention, the cast steel node of the three-way cable connection and the pin connection of the main and auxiliary cables
Reference numerals
1. A main cable connecting plate; 2. a secondary cable connecting plate; 3. a stay bar connecting end; 4. a first pin shaft hole; 5. a second pin shaft hole; 6. reinforcing plate
Detailed Description
In the embodiment of the utility model, as shown in fig. 1 to fig. 3, the cast steel node structure for the three-way cable connection of beam string structure comprises main cable connecting plate 1 and auxiliary cable connecting plate 2, and first round pin shaft hole 4 has been seted up to the one end of main cable connecting plate 1 to at first round pin shaft hole 4 external fixation with annular reinforcing plate 6, first round pin shaft hole 4 is responsible for rotating and connects the main cable.
The auxiliary cable connecting plate 2 is a Y-shaped member and comprises a fixed connecting plate 21 and two rotating connecting plates 22, second pin shaft holes 5 are formed in the free ends of the two rotating connecting plates 22, annular reinforcing plates 6 are fixed outside the second pin shaft holes 5, the two second pin shaft holes 5 are in one-to-one corresponding rotating connection with two auxiliary cables, the two rotating connecting plates 22 have certain included angles, tail portions of the two rotating connecting plates are in transitional connection with each other to form the fixed connecting plate 21, the included angles of the two rotating connecting plates are 16.6 degrees, the free ends of the fixed connecting plates 21 and the end, connected with the main cable connecting plate 1, of each main cable connecting plate are provided with oblique planes, the areas of the two oblique planes are the same, the two oblique planes are aligned and welded, and finally a main body of a cast steel node structure connected with a three-way cable is formed.
One side of the outer sides of the two rotating connecting plates 22 is welded with two welding seams formed by welding the main cable connecting plate 1, a stay bar connector 3 is welded at each welding seam, the stay bar connectors 3 are used for connecting compressed stay bars below the beam string structure, and in order to meet requirements, the stay bar connectors 3 are cylinders and are obliquely fixed on the side faces of the nodes. The two strut connectors 3 are arranged coaxially with the two rods of the compression strut respectively, the axes of the strut connectors 3 form an included angle of 26.4 degrees with the welding line where the axes of the strut connectors are located, meanwhile, one side, where the two strut connectors 3 are located, of the same direction of the plate surface of the main cable connecting plate 1 respectively forms an obtuse angle r2 and an acute angle r1, the obtuse angle r2 is 125.3 degrees, the acute angle r1 is 38.2 degrees, and as the two strut connectors 3 are different in inclined direction, one is inclined towards the main cable connecting plate 1 direction and the other is inclined towards the auxiliary cable connecting plate 2 direction, finally the two strut connectors 3 form a V shape in space, and are convenient to be connected with the compression strut.
As shown in fig. 4 and 5, two brace connectors 3 are welded with the compressed brace in the beam string structure, the compressed brace at the lower part of the beam string structure and the three-way cast steel node structure can be connected into a rigid node by welding through the brace connectors 3, so that the upper load of the beam string structure is transmitted to the three-way cast steel node structure through the brace, the three-way cast steel node structure and the three auxiliary cables form a hinge structure through a pin shaft, and the conversion from the pressure of the upper brace to the tension of the cable is completed.
As shown in figures 2 and 5, after the main cable connecting plate 1 and the fixed connecting plate 21 are welded, the side surface forms an arc-shaped structure, and the design is matched with the arc naturally formed between the main cable and the auxiliary cable at the lower part of the beam string structure.
The utility model provides a three-dimensional cable connection cast steel node will stretch out string girder construction lower part vaulting pole and be connected with the round pin axle for the three-dimensional cable in lower part, makes five cables of stretching a string bridge lower part constitute a whole and be drawn the structure, and the conversion and the connection of perfect solution three-dimensional cable atress make overall structure safety and stability more, and installation and construction is more convenient simultaneously, swift, practice thrift the time limit for a project. Compared with the prior art, the method has remarkable improvement.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The utility model provides a cast steel node structure for opening string beam structure three-way cable is connected, open string beam structure three-way cable includes main rope, two vice cables and pressurized strut, its characterized in that includes:
the cable connecting device comprises a main cable connecting plate (1), wherein a first pin shaft hole (4) is formed in one end of the main cable connecting plate (1);
the auxiliary cable connecting plate (2) is a Y-shaped component and comprises a fixed connecting plate (21) and two rotating connecting plates (22) which are integrally connected, and the free ends of the rotating connecting plates (22) are provided with second pin shaft holes (5); one end of the main cable connecting plate (1) is welded with the free end of the fixed connecting plate (21); the two second pin shaft holes (5) are respectively in one-to-one correspondence and are rotatably connected with the two auxiliary cables, and the first pin shaft holes are rotatably connected with the main cables;
the stay bar connectors (3) are welded on two sides of the welding position of one end of the main cable connecting plate (1) and the fixed connecting plate (21); the axial direction of the strut connector (3) is coaxial with the axial line of the compressed strut.
2. The cast steel node construction for three-way cable connection of a beam string structure according to claim 1,
and annular reinforcing plates (6) are fixed on the outer sides of the first pin shaft hole (4) and the second pin shaft hole (5).
3. The cast steel node structure for the three-way cable connection of a beam string structure according to claim 1, wherein one end of the main cable connecting plate (1) and the free end of the fixed connecting plate (21) are provided with chamfer surfaces, and the chamfer surfaces and the free end are welded to form an integral structure with one arc-shaped side.
4. A cast steel node construction for a three-way guy cable connection of a beam string structure according to claim 1, characterized in that the angle α formed by the two rotation connection plates (22) is 16.6 °.
5. The cast steel node construction for a three-way guy cable connection of a beam string structure according to claim 1, wherein the number of the compression stay bars is two;
the stay bar connectors (3) are two, and the stay bar connectors (3) are welded at two welding seams formed by welding the fixed connecting plate (21) and the main cable connecting plate (1) respectively.
6. The cast steel node structure for the connection of the three-way inhaul cable of the beam string structure according to claim 5, wherein the stay bar connector (3) is a cylinder, one end of the stay bar connector is a chamfered surface welded at the welding seam of the main cable connecting plate (1) and the fixed connecting plate (21), and the acute angle included angle β formed by the axis of the stay bar connector (3) and the welding seam is 26.4 °.
7. The cast steel node construction for three-way cable connection of a beam string structure according to claim 6, wherein the axes of the two strut connecting heads (3) form an obtuse angle r1 and an acute angle r2 with the same direction side of the main cable connecting plate (1) plate surface on the side where the strut connecting heads are located, the obtuse angle r1 is 125.3 degrees, and the acute angle r2 is 38.2 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893928.7U CN217379249U (en) | 2022-04-18 | 2022-04-18 | Cast steel node structure for connecting three-way inhaul cables of beam string structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893928.7U CN217379249U (en) | 2022-04-18 | 2022-04-18 | Cast steel node structure for connecting three-way inhaul cables of beam string structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217379249U true CN217379249U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220893928.7U Active CN217379249U (en) | 2022-04-18 | 2022-04-18 | Cast steel node structure for connecting three-way inhaul cables of beam string structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217379249U (en) |
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2022
- 2022-04-18 CN CN202220893928.7U patent/CN217379249U/en active Active
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