Device for semi-rigid connection of primary beam and secondary beam of assembly type steel structure

Abstract

The device comprises a center plate and a plurality of supporting plates, a set of oppositely-arranged bearing columns are arranged at the gravitational potential energy high position of the center plate, the center plate is connected with the set of supporting plates in the width direction, the minimum included angle between the supporting plates is 60 degrees, and the supporting plates are connected with the bearing columns in a staggered mode. A first round hole is formed in the center of the center plate. The structure of the device is of a multi-triangle clamping structure, when a multi-time beam structure is clamped, the supporting plate and the bearing column of the device are of a triangular structure, so that the device has stability, when the main beam is clamped, the main beam is firstly placed in the first round hole, at the moment, the main beam clamped by the first round hole is extruded by the bearing column in three directions to achieve stability, and the main beam is clamped by the bearing column. And meanwhile, the diameter of the second circular hole is smaller than that of the first circular hole, so that the second circular hole tightly hoops the main beam.

Description

Technical Field

[0001] The invention belongs to the field of construction engineering, and in particular is a device for semi-rigidly connecting primary and secondary beams of an assembled steel structure. Background Art

[0002] At present, the nodes of the main beam and secondary beam of the I-shaped section of the prefabricated steel structure are usually hinged at the vertical connection. The characteristic is that the friction force generated by the bolt riveting can withstand large shear force, but it is easy to cause shear damage of the bolts when subjected to bending moment, causing structural instability. At the same time, in order to ensure the tight connection between the main and secondary beams and effectively transmit the shear force, the end of the secondary beam is usually processed: part of the flange plate and the web are cut off to make the end of the secondary beam form an outward protruding shape, so that the web at the end of the secondary beam can be extended to the web of the main beam for connection, or the extended ribs are welded at the web of the main beam to connect with the web of the secondary beam. However, when the cutout at the end of the secondary beam is large in this way, the web at the end of the secondary beam is very likely to be unstable and damaged, and it is difficult to meet the requirements of the shear strength and stability design of the node.

[0003] In addition, since the connection nodes of the main and secondary beams of today's steel structures focus on the influence of shear force, vertical plates parallel to the web of the secondary beam are often used. From the force analysis of the I-section beam, it is known that the flange plate can play a good role in resisting positive and negative bending moments. Designing a structural member that is perpendicular to the web and connected to the flange plate can effectively resist the positive and negative bending moments at the connection node. Taking into account the bearing shear force, a new type of connector can be proposed. Summary of the invention

[0004] In order to solve the above problems, the object of the present invention is to provide a device for semi-rigidly connecting primary and secondary beams of an assembled steel structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a device for semi-rigid connection of primary and secondary beams of an assembled steel structure, comprising a center plate and a plurality of support plates, wherein a group of opposing receiving columns are provided at the high point of the gravitational potential energy of the center plate, a group of support plates are connected in the width direction of the center plate, the minimum angle between the support plates is 60°, and a first circular hole is provided at the center of the center plate.

[0006] Furthermore, the number of the receiving columns is 3, and the receiving columns form a triangle along the first circular hole, the edge of one end of the receiving column close to the first circular hole is flat, and the edge of one end of the receiving column away from the first circular hole is concave.

[0007] Furthermore, the cross-section of the support plate is a rectangle with an opening. The support plate includes a transverse plate and a group of vertical plates. The vertical plates are connected by the transverse plate. The vertical plates are also connected with a first reinforcing rib. The vertical plates at the low gravitational potential energy are connected with a horizontal plate. The horizontal plate is processed with a first threaded hole.

[0008] Furthermore, a second threaded hole is opened in the width direction of the receiving column.

[0009] Furthermore, it also includes a second circular hole, which is concentric with the first circular hole and has a diameter smaller than the first circular hole.

[0010] Furthermore, the receiving column passes through the first circular hole, and the receiving column is located between the first circular hole and the second circular hole.

[0011] Furthermore, a rib plate is arranged between the horizontal plate and the vertical plate, and the rib plate is a triangular structure.

[0012] Furthermore, the horizontal plates connected to the vertical plates all extend to the angle coverage area formed between the vertical plates, the angle between the horizontal plates and the vertical plates is 30-45 degrees, and the horizontal plates do not contact each other.

[0013] Furthermore, the supporting column at the high point of the gravitational potential energy of the central plate extends to the angle coverage area formed between the vertical plates, and the adjacent sides of the vertical plates are slidably connected with fixed shafts, and a sliding shaft is slidably connected between the two fixed shafts. A return spring is arranged between the fixed shaft and the sliding shaft, and the end of the supporting column away from the first circular hole is hinged to the movable shaft.

[0014] The following beneficial effects are achieved by adopting the above scheme: when used, this technical scheme can meet the needs of multiple beam structures, reduce the number of semi-rigid connecting devices used, and thus realize the clamping of multiple secondary beams by a single rigid connecting device.

[0015] The structure of the device presents a multi-triangular card-and-structure. When carding multiple beam structures, the support plate and the receiving column of the device present a triangular structure, thereby making the device stable. When carding the main beam, first put the main beam into the first circular hole. At this time, the main beam carded by the first circular hole is squeezed in three directions by the receiving column to achieve stability. At the same time, since the diameter of the second circular hole is smaller than the diameter of the first circular hole, the second circular hole clamps the main beam.

[0016] The supporting column located above has a concave edge, so the top of the supporting column can hold up other objects.

[0017] In addition, ribs are arranged between the horizontal plates and the vertical plates, and combined with reinforcing ribs, the device as a whole can have stronger supporting performance, especially when the horizontal plates are extended to the angle coverage area formed between the vertical plates, a more stable supporting structure is formed between the vertical plates. When the forces on both sides are uneven, the side with greater force can still provide higher supporting performance.

[0018] On the basis that the horizontal plates extend to the angle coverage area formed between the vertical plates, a fixed axis and a sliding axis are set between the vertical plates. As the vertical plates are deformed under force, the fixed axis and the sliding axis cooperate to drive the supporting columns below to move, so that the main beam in the first circular hole can be clamped more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0020] Figure 2 It is an overall front view of Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure after the main beam of Example 1 of the present invention is installed;

[0022] Figure 4 This is a schematic diagram of the center plate structure of Example 1 of the present invention;

[0023] Figure 5 It is a front view of the center plate of Embodiment 1 of the present invention;

[0024] Figure 6 This is an exploded view of the center plate of Embodiment 1 of the present invention;

[0025] Figure 7 A front view of a center plate of Embodiment 2 of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the center plate when the horizontal plate is folded outward according to Embodiment 2 of the present invention

[0027] Fig. 9 This is a schematic diagram of the structure of the center plate when the horizontal plate is folded inwardly according to Embodiment 2 of the present

[0028] Fig.10 This is a front view of the center plate of Example 3 of the present invention. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The figure marks in the drawings of the specification include: center plate 1, support plate 2, receiving column 3, first circular hole 4, second circular hole 5, transverse plate 6, vertical plate 7, horizontal plate 8, first reinforcing rib 9, rib plate 10, movable shaft 11, return spring 12, fixed shaft 13.

[0031] Example 1

[0032] Basically as attached Figure 1-6As shown: A device for semi-rigid connection of primary and secondary beams of an assembled steel structure comprises a center plate 1 and a plurality of support plates 2. A group of opposing receiving columns 3 are provided at the high point of the gravitational potential energy of the center plate 1. A group of support plates 2 are connected in the width direction of the center plate 1. The minimum angle between the support plates 2 is 60°. A first circular hole 4 is provided at the center of the center plate, and also comprises a second circular hole 5. The second circular hole 5 is concentric with the first circular hole 4. The diameter of the second circular hole 5 is smaller than that of the first circular hole 4. The number of receiving columns 3 is 3, and the receiving columns 3 form a triangle along the first circular hole 4. The edge of one end of the receiving column 3 close to the first circular hole 4 is flat, and the edge of one end of the receiving column 3 away from the first circular hole 4 is concave. The receiving column 3 passes through the first circular hole 4, and the receiving column 3 is located between the first circular hole 4 and the second circular hole 5.

[0033] Please refer to the attached Figure 4-6 The cross section of the support plate 2 is a rectangle with an opening. The support plate 2 includes a transverse plate 6 and a group of vertical plates 7. The vertical plates 7 are connected by the transverse plate 6. The vertical plates 7 are also connected with a first reinforcing rib 9. The vertical plates 7 at the low gravitational potential energy are connected with a horizontal plate 8. The horizontal plate 8 is processed with a first threaded hole, and a second threaded hole is opened in the width direction of the receiving column 3.

[0034] The specific implementation process is as follows: When this technical solution is used, it can meet the needs of multiple beam structures and reduce the number of semi-rigid connecting devices used, thereby realizing the clamping of multiple secondary beams by a single rigid connecting device.

[0035] The structure of the device presents a multi-triangular clamping structure. When clamping multiple beam structures, the support plate 2 and the receiving column 3 of the device present a triangular structure, so that the device has stability. When clamping the main beam, the main beam is first placed in the first circular hole 4. At this time, the main beam clamped by the first circular hole 4 is squeezed in three directions by the receiving column 3 to achieve stability. At the same time, since the diameter of the second circular hole 5 is smaller than the diameter of the first circular hole 4, the second circular hole 5 tightens the main beam.

[0036] The receiving column 3 located at the top has a concave edge, so the top of the receiving column 3 can hold up other objects.

[0037] Example 2

[0038] As attached Figure 7-9 As shown, the difference from Example 1 is that, under normal conditions, the horizontal plates 8 connected to the vertical plates 7 can be selected to be extended to the outer area of ​​the vertical plates 7 (folded outward), and an obtuse angle is formed between the vertical plates 7 and the horizontal plates 8; or the horizontal plates 8 connected to the vertical plates 7 can be extended to the angle covering area formed between the vertical plates 7 (folded inward), and an acute angle is formed between the vertical plates 7 and the horizontal plates 8. Compared with the obtuse angle structure between the vertical plates 7 and the horizontal plates 8, the acute angle structure has stronger supporting performance, especially when the angle between the horizontal plates 8 and the vertical plates 7 is between 30-45°, and a certain distance is maintained between the two horizontal plates 8 so that they do not touch each other.

[0039] Ribs 10 are welded between the horizontal plates 8 and the vertical plates 7. The ribs 10 are triangular structures. When the ribs 10 are provided, the horizontal plates 8 extend to the angle coverage area formed between the vertical plates 7 to form a more stable support structure with the vertical plates 7. When the forces on both sides are uneven, the side with greater force can still provide higher support performance.

[0040] Example 3

[0041] As attached Fig.10 As shown, the difference from Example 2 is that the supporting column 3 at the high point of the gravitational potential energy of the central plate 1 extends to the angle coverage area formed between the vertical plates 7, and the adjacent sides of the vertical plates 7 are slidably connected with a fixed shaft 13, and the sliding area of ​​the fixed shaft 13 must ensure that there is no interference with the rib plate 10, and a sliding shaft is slidably connected between the two fixed shafts 13, and a reset spring 12 is arranged between the fixed shaft 13 and the sliding shaft, and the end of the supporting column 3 away from the first circular hole 4 is hinged to the movable shaft 11.

[0042] On the basis that the horizontal plates 8 extend to the angle coverage area formed between the vertical plates 7, a fixed axis 13 and a sliding axis are set between the vertical plates 7. As the vertical plates 7 are deformed under force, the fixed axis 13 and the sliding axis cooperate to drive the supporting column 3 below to move, so that the main beam in the first circular hole 4 can be clamped more firmly.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A semi-rigid connection device for primary and secondary beams of an assembled steel structure, characterized in that: It includes a central plate and several supporting plates. A group of opposing supporting columns are provided at the high point of the gravitational potential energy of the central plate. A group of supporting plates are connected in the width direction of the central plate. The minimum angle between the supporting plates is 60°. The center of the central plate is provided with a first circular hole.

2. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to claim 1 is characterized in that: The number of receiving columns is 3, and the receiving columns form a triangle along the first circular hole. The edge of one end of the receiving column close to the first circular hole is flat, and the edge of one end of the receiving column away from the first circular hole is concave.

3. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to claim 2 is characterized in that: The cross-section of the support plate is a rectangle with an opening. The support plate includes a transverse plate and a group of vertical plates. The vertical plates are connected by the transverse plate. The vertical plates are also connected with a first reinforcing rib. The vertical plates at the low gravitational potential energy are connected with a horizontal plate. The horizontal plate is processed with a first threaded hole.

4. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to claim 3 is characterized in that: A second threaded hole is formed in the width direction of the receiving column.

5. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to claim 4 is characterized in that: It also includes a second circular hole, which is concentric with the first circular hole and has a smaller diameter than the first circular hole.

6. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to claim 5 is characterized in that: The receiving column passes through the first circular hole, and is located between the first circular hole and the second circular hole.

7. The device for semi-rigid connection of primary and secondary beams of an assembled steel structure according to any one of claims 3 to 6, characterized in that: A rib plate is arranged between the horizontal plate and the vertical plate, and the rib plate is a triangular structure.

8. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to any one of claim 7, characterized in that: The horizontal plates connected to the vertical plates all extend to the angle coverage area formed between the vertical plates, the angle between the horizontal plates and the vertical plates is 30-45 degrees, and the horizontal plates do not contact each other.

9. The semi-rigid connection device for primary and secondary beams of an assembled steel structure according to any one of claim 8, characterized in that: The receiving column at the high point of the gravitational potential energy of the central plate extends to the angle coverage area formed between the vertical plates, and the adjacent sides of the vertical plates are slidably connected with fixed shafts, and a sliding shaft is slidably connected between the two fixed shafts. Reset springs are arranged between the fixed shaft and the sliding shaft, and the end of the receiving column away from the first circular hole is hinged to the movable shaft.

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