Steel structure connecting joint

Abstract

The invention relates to a steel structure connecting joint which comprises a longitudinal beam body, a cross beam body, a cross beam fixing piece, a longitudinal beam fixing piece, a supporting arm and a bearing piece. Wherein the cross beam fixing piece is fixed with the end part of the cross beam body, and is connected to the longitudinal beam body in an embracing manner; the longitudinal beam fixing piece is located below the cross beam fixing piece and fixedly connected to the longitudinal beam body. The supporting arms incline outwards from bottom to top, the lower ends of the supporting arms are fixed to the longitudinal beam fixing pieces, and the upper ends of the supporting arms are fixed to the bearing pieces. The transverse beam and the longitudinal beam are preliminarily fixed by arranging the transverse beam fixing piece for directly connecting the longitudinal beam and the transverse beam, meanwhile, the longitudinal beam fixing piece is connected to the longitudinal beam, the longitudinal beam fixing piece and the preliminarily fixed transverse beam are supported through cooperation of the supporting arm and the bearing piece, and a high-stability connecting structure of the transverse beam and the longitudinal beam is formed; the welding area of the steel structure connecting joint formed by the longitudinal beams and the transverse beams is reduced, and the stress performance of all parts of the connecting position is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure parts, in particular to a steel structure connection node. Background Art

[0002] Steel structure is a structure made of steel materials. It is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings, bridges and other fields. Steel structures are prone to rust. Generally, steel structures need to be rust-free, galvanized or painted, and regularly maintained. The development and application of new prefabricated steel structure systems are of great significance to the industrialization of structural engineering.

[0003] The node form used in existing engineering practice is mainly bolt-welded hybrid nodes. The upper and lower flanges of the beam wing are welded to the column on site, and the web of the beam end is bolted to the column through a shear plate. Due to the large welding area, large residual stress is easily generated, which affects the force performance of the node and causes fractures between the crossbeam and the longitudinal beam. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a steel structure connection node to solve the problem that the welding area of ​​the steel structure connection node in the prior art is large and affects the stress performance of the node.

[0005] To achieve the above-mentioned object, the present invention provides a steel structure connection node, comprising a longitudinal beam body, a transverse beam body, a transverse beam fixing member, a longitudinal beam fixing member, a support arm and a supporting member;

[0006] Wherein, the cross beam fixing member is fixed to the end of the cross beam body and is connected to the longitudinal beam body in an embracing manner;

[0007] The longitudinal beam fixing member is located below the cross beam fixing member and is fixedly connected to the longitudinal beam body;

[0008] The support arm is arranged to be inclined outward from bottom to top, and its lower end is fixed to the longitudinal beam fixing member, and its upper end is fixed to the supporting member;

[0009] The supporting member is supported and fixed below the crossbeam body.

[0010] By adopting this technical solution, the crossbeam body is initially fixed to the longitudinal beam body by means of the crossbeam fixing piece; after the longitudinal beam fixing piece connected to the longitudinal beam body alone is fixed, the support arm connected thereto will support the supporting piece on the lower side of the crossbeam body after initial fixation, thereby forming a triangular stable support structure between the longitudinal beam body and the crossbeam body, realizing secondary fixation of the crossbeam body on the longitudinal beam body, and achieving the purpose of stable connection between the crossbeam body and the longitudinal beam body; at the same time, this method reduces the welding area of ​​the steel structure connection node formed by the longitudinal beam body and the crossbeam body, thereby ensuring the stress performance of each part of the connection position.

[0011] Further, the crossbeam fixing member includes a fixing plate, a first tensioning screw and a first locking bolt;

[0012] Wherein, the fixing plate is fixed to the end of the cross beam body, and two fixing plates are arranged facing each other on both sides of the longitudinal beam body;

[0013] A plurality of the first tension screws are provided on both sides of the fixing plate. The first tension screws on any one of the fixing plates penetrate the other fixing plate and are bolted to the first locking bolts.

[0014] By adopting this technical solution, the fixing plates arranged opposite to each other can be tightly embraced to the surface of the longitudinal beam body after being bolted together by the first tension screw and the first locking bolt, thereby achieving the fixation of the fixing plates and the longitudinal beam body, and simultaneously achieving the fixation of the crossbeam body connected to the fixing plates and the longitudinal beam body.

[0015] Furthermore, the crossbeam fixing member further includes a fixing hole;

[0016] The fixing holes are evenly distributed on the fixing plate along the periphery of the crossbeam body.

[0017] By adopting this technical solution, additional bolt connection holes are provided. Without affecting the connection between the crossbeam body and the fixed plate, bolts can be inserted through the holes and connected to the longitudinal beam body, thereby increasing the stability of the connection between the fixed plate and the longitudinal beam body, thereby increasing the stability of the connection between the crossbeam body and the longitudinal beam body.

[0018] Furthermore, the longitudinal beam fixing member includes a tension plate, a second tension screw and a second locking bolt;

[0019] Wherein, two tension plates are arranged opposite to each other on both sides of the longitudinal beam body;

[0020] The second tensioning screw rod passes through the longitudinal beam body and the two tensioning plates at the same time and is bolted to the second locking bolt.

[0021] By adopting this technical solution, the tension plates arranged opposite to each other can be tightly embraced on the surface of the longitudinal beam body after being bolted together by the second tension screw and the second locking bolt. At the same time, the relative limitation of the second tension screw and the longitudinal beam body can ensure the positional stability of the connection of the tension plates on the longitudinal beam body, providing basic guarantee for providing stable supporting force to the supporting member through the support arm to complete the secondary reinforcement of the crossbeam body on the longitudinal beam body.

[0022] Furthermore, the longitudinal beam fixing member also includes a clamping plate, a fixing rod, a limiting ring and a spring;

[0023] Wherein, two of the clasping plates are arranged opposite to each other on both sides of the two tensioning plates;

[0024] The fixing rod is fixedly connected to the two sides of the two tension plates facing each other, and one end of the fixing rod is inserted into the interior of the clasping plate from the end of the clasping plate at the corresponding position;

[0025] The limiting ring is connected to one end of the fixing rod which penetrates into the interior of the clasping plate;

[0026] The spring is sleeved on the fixing rod, and one end of the spring is fixed to the limiting ring, and the other end is fixed to the embracing plate.

[0027] By adopting this technical solution, the arrangement of the clamping plate, the fixing rod, the limiting ring and the spring enables the two tension plates to have the ability to move toward each other autonomously before they are fixed on the longitudinal beam body by means of the second tensioning screw in cooperation with the second locking bolt. In actual operation, the two tension plates are stretched outward, and the clamping plate can relatively compress the spring on the fixing rod. After the tension plates are released, the tension plates facing each other can be directly clamped on the longitudinal beam body under the restoring force of the spring, and further fixing work can be performed. This can not only adapt to longitudinal beam bodies of different cross-sectional widths, but also reduce the difficulty of its own installation on the longitudinal beam body. At the same time, providing a clamping plate relatively enclosed with the tension plates to clamp the other two sides of the longitudinal beam body is beneficial to increase the stability of the tension plates after being connected to the longitudinal beam body.

[0028] Further, the tension plate comprises a first clamping block, a second clamping block and an inserting block;

[0029] Wherein, the first clamping block and the second clamping block are distributed on the left and right;

[0030] The insert block is integrally connected to a side of the first clamping block facing the second clamping block;

[0031] A slot for plugging and cooperating with the inserting block is formed on one side of the second clamping block facing the first clamping block.

[0032] By adopting this technical solution, the tension plate is divided into two blocks, namely a first clamping block and a second clamping block. Through the cooperation of the insert block and the slot, the tension plate has the ability to adjust the width laterally. Correspondingly, the two interlocking plates between the two tension plates have the ability to adjust the spacing, which can adapt to the longitudinal beam body with different cross-sectional widths.

[0033] Furthermore, a strip-shaped adjustment hole is provided on the insert block corresponding to the second pair of tension screws.

[0034] By adopting this technical solution, it is prevented that the second tension screw affects the relative adjustment capability of the first clamping block and the second clamping block.

[0035] Further, the supporting member includes a supporting plate, a fixed block, a threaded rod and a movable block;

[0036] Wherein, two fixing blocks are vertically fixed on both sides of the top of the support plate;

[0037] The threaded rod is threadedly connected to and passes through the fixing block;

[0038] The movable block is slidably connected to the supporting plates on the opposite sides of the two fixed blocks, and the movable block is rotatably connected to the threaded rod.

[0039] By adopting this technical solution, after the support plate is supported at the bottom of the beam body, the movable block can be pushed toward the beam body by rotating the threaded rod on the fixed block thereon, and finally the beam body is clamped to complete the fixation with it, thereby increasing the stability of the beam body after connection.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. Set up crossbeam fixing parts that directly connect the longitudinal beams and the crossbeams to achieve the initial fixation of the crossbeams and the longitudinal beams. At the same time, the longitudinal beam fixing parts are connected to the longitudinal beams to form a support with the initially fixed crossbeams through the support arms and the supporting parts, forming a high-stability connection structure between the crossbeams and the longitudinal beams, reducing the welding area of ​​the steel structure connection nodes formed by the longitudinal beams and the crossbeams, and ensuring the stress performance of each part of the connection position.

[0042] 2. The crossbeam fixings, longitudinal beam fixings and supporting parts are all adjustable structures, which can adapt to the connection of crossbeams and longitudinal beams with different cross-sectional areas and ensure the stability after the connection of crossbeams and longitudinal beams with different cross-sectional areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a three-dimensional schematic diagram of the steel structure connection node in the present invention;

[0044] Figure 2 It is a three-dimensional schematic diagram of a cross beam fixing member in a steel structure connection node in the present invention;

[0045] Figure 3 It is a three-dimensional schematic diagram of a longitudinal beam fixing member in a steel structure connection node in the present invention;

[0046] Figure 4 It is a three-dimensional schematic diagram of the de-embracing plate of the longitudinal beam fixing member in the steel structure connection node in the present invention;

[0047] Figure 5 It is a three-dimensional schematic diagram of the supporting member in the steel structure connection node in the present invention.

[0048] Explanation of the reference numerals: 1. longitudinal beam body; 2. cross beam body; 3. cross beam fixing member; 31. fixing plate; 32. first tension screw; 33. first locking bolt; 34. fixing hole; 4. longitudinal beam fixing member; 41. tension plate; 411. first clamping block; 412. second clamping block; 413. insert block; 42. clamping plate; 44. fixing rod; 45. limiting ring; 46. spring; 47. second tension screw; 48. second locking bolt; 5. support arm; 6. supporting member; 61. support plate; 62. fixing block; 63. threaded rod; 64. movable block. DETAILED DESCRIPTION

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] Please see attached Figure 1 The present invention provides a steel structure connection node, comprising a longitudinal beam body 1, a cross beam body 2, a cross beam fixing member 3, a longitudinal beam fixing member 4, a support arm 5 and a supporting member 6; wherein the cross beam fixing member 3 is fixed to the end of the cross beam body 2 and is connected to the longitudinal beam body 1 in an embracing manner; the longitudinal beam fixing member 4 is located below the cross beam fixing member 3 and is fixedly connected to the longitudinal beam body 1; the support arm 5 is arranged to be inclined outward from bottom to top, and its lower end is fixed to the longitudinal beam fixing member 4, and its upper end is fixed to the supporting member 6; the supporting member 6 is supported and fixed below the cross beam body 2;

[0051] The crossbeam body 2 is initially fixed to the longitudinal beam body 1 by the crossbeam fixing piece 3; after the longitudinal beam fixing piece 4 connected to the longitudinal beam body 1 is fixed, the support arm 5 connected thereto will support the supporting piece 6 on the lower side of the crossbeam body 2 after initial fixation, thereby forming a triangular stable support structure between the longitudinal beam body 1 and the crossbeam body 2, realizing secondary fixation of the crossbeam body 2 on the longitudinal beam body 1, and achieving the purpose of stable connection between the crossbeam body 2 and the longitudinal beam body 1; at the same time, this method reduces the welding area of ​​the steel structure connection node formed by the longitudinal beam body 1 and the crossbeam body 1, thereby ensuring the stress performance of each part of the connection position.

[0052] For further information, see Figure 2The cross beam fixing member 3 includes a fixing plate 31, a first tensioning screw 32 and a first locking bolt 33; wherein the fixing plate 31 is fixed to the end of the cross beam body 2, and two are arranged on both sides of the longitudinal beam body 1 facing each other; a plurality of first tensioning screws 32 are penetrated on both sides of the fixing plate 31, and the first tensioning screws 32 on any fixing plate 31 penetrate the other fixing plate 31 and are bolted to the first locking bolt 33;

[0053] The fixing plates 31 arranged opposite to each other can be tightly attached to the surface of the longitudinal beam body 1 after being bolted together by the first tensioning screw rod 32 and the first locking bolt 33, so as to achieve the fixing of the fixing plates 31 and the longitudinal beam body 1, and simultaneously achieve the fixing of the cross beam body 2 connected to the fixing plates 31 and the longitudinal beam body 1;

[0054] For further information, see Figure 2 The crossbeam fixing member 3 further includes fixing holes 34; the fixing holes 34 are evenly distributed along the periphery of the crossbeam body 2 and are opened on the fixing plate 31;

[0055] By adding bolt connection holes, without affecting the connection between the crossbeam body 2 and the fixing plate 31 , bolts can be inserted through the holes and connected to the longitudinal beam body 1 , thereby increasing the stability of the connection between the fixing plate 31 and the longitudinal beam body 1 , thereby increasing the stability of the connection between the crossbeam body 2 and the longitudinal beam body 1 .

[0056] See also Figure 3 The longitudinal beam fixing member 4 includes a tension plate 41, a second tension screw 47 and a second locking bolt 48; wherein two tension plates 41 are arranged on both sides of the longitudinal beam body 1 facing each other; the second tension screw 47 passes through the longitudinal beam body 1 and the two tension plates 41 and is bolted to the second locking bolt 48;

[0057] The tension plates 41 arranged opposite to each other can be tightly attached to the surface of the longitudinal beam body 1 after being bolted together by the second tension screw 47 and the second locking bolt 48. At the same time, the relative position limitation between the second tension screw 47 and the longitudinal beam body 1 can ensure the stability of the connection position of the tension plates 41 on the longitudinal beam body 1, so as to provide a basic guarantee for providing a stable supporting force to the supporting member 6 through the support arm 5 to complete the secondary reinforcement of the cross beam body 2 on the longitudinal beam body 1.

[0058] For further information, see Figure 3 and Figure 4The longitudinal beam fixing member 4 also includes an embracing plate 42, a fixing rod 44, a limiting ring 45 and a spring 46; wherein, two embracing plates 42 are arranged opposite to each other on both sides of the two tensioning plates 41; the fixing rod 44 is fixedly connected to both sides of the two tensioning plates 41 on the opposite sides, and one end of the fixing rod 44 is inserted into the interior of the embracing plate 42 from the end of the embracing plate 42 at the corresponding position; the limiting ring 45 is connected to one end of the fixing rod 44 that is inserted into the interior of the embracing plate 42; the spring 46 is sleeved on the fixing rod 44, and one end of the spring 46 is fixed to the limiting ring 45, and the other end is fixed to the embracing plate 42;

[0059] The arrangement of the clasping plate 42, the fixing rod 44, the limiting ring 45 and the spring 46 enables the two tensioning plates 41 to be capable of autonomously moving toward each other before being fixed on the longitudinal beam body 1 by bolting together the two tensioning screws 47 in cooperation with the second locking bolts 48. In actual operation, the two tensioning plates 41 are stretched outward, and the clasping plate 42 can relatively compress the spring 46 on the fixing rod 44. After the tensioning plates 41 are released, the tensioning plates 41 facing each other can be directly clamped on the longitudinal beam body 1 under the restoring force of the spring 46, and further fixing work can be performed afterwards, which can not only adapt to the longitudinal beam body 1 of different cross-sectional widths, but also reduce the difficulty of its own installation on the longitudinal beam body 1; at the same time, providing the clasping plate 42 relatively enclosed with the tensioning plate 41 to clamp the other two sides of the longitudinal beam body 1 is beneficial to increase the stability of the tensioning plate 41 after being connected to the longitudinal beam body 1;

[0060] Furthermore, in order to increase the connection strength between the clamping plate 42 and the longitudinal beam body 1, welding operation can be performed at the contact position between the clamping plate 42 and the longitudinal beam body 1, which can not only increase the supporting effect of the side support arm 5 and the supporting member 6 on the cross beam body 2, but also will not affect the force performance at the connection position between the cross beam body 2 and the longitudinal beam body 1.

[0061] For further information, see Figure 3 and Figure 4 The tension plate 41 includes a first clamping block 411, a second clamping block 412 and an inserting block 413; wherein the first clamping block 411 and the second clamping block 412 are distributed on the left and right; the inserting block 413 is integrally connected to a side of the first clamping block 411 facing the second clamping block 412; a slot for plugging and matching with the inserting block 413 is provided on a side of the second clamping block 412 facing the first clamping block 411;

[0062] The tension plate 41 is divided into two parts, namely, a first clamping block 411 and a second clamping block 412. Through the cooperation of the insert block 413 and the slot, the tension plate 41 has the ability to adjust the width in the transverse direction, and correspondingly, the two clasping plates 42 between the two tension plates 41 have the ability to adjust the spacing, so as to adapt to the longitudinal beam body 1 with different cross-sectional widths;

[0063] Furthermore, in order to prevent the second tension screw 47 from affecting the relative adjustment capability of the first clamping block 411 and the second clamping block 412 , a strip-shaped adjustment hole is provided on the insert block 413 corresponding to the second tension screw 47 .

[0064] See also Figure 5 The supporting member 6 includes a support plate 61, a fixed block 62, a threaded rod 63 and a movable block 64; wherein two fixed blocks 62 are vertically fixed on both sides of the top of the support plate 61; the threaded rod 63 is threadedly connected and penetrates the fixed block 62; the movable block 64 is slidably connected to the support plate 61 on the opposite sides of the two fixed blocks 62, and the movable block 64 is rotatably connected to the threaded rod 63;

[0065] After the support plate 61 is supported at the bottom of the beam body 2, the movable block 64 can be pushed toward the beam body 2 by rotating the threaded rod 63 on the fixed block 62 thereon, and finally the beam body 2 is clamped to complete the fixation thereto, thereby increasing the stability of the beam body 2 after connection.

[0066] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A steel structure connection node, characterized in that: It includes a longitudinal beam body, a cross beam body, a cross beam fixing part, a longitudinal beam fixing part, a supporting arm and a supporting part; Wherein, the cross beam fixing member is fixed to the end of the cross beam body and is connected to the longitudinal beam body in an embracing manner; The longitudinal beam fixing member is located below the cross beam fixing member and is fixedly connected to the longitudinal beam body; The support arm is arranged to be inclined outward from bottom to top, and its lower end is fixed to the longitudinal beam fixing member, and its upper end is fixed to the supporting member; The supporting member is supported and fixed below the crossbeam body.

2. The steel structure connection node according to claim 1, characterized in that: The crossbeam fixing member comprises a fixing plate, a first tensioning screw and a first locking bolt; Wherein, the fixing plate is fixed to the end of the cross beam body, and two fixing plates are arranged facing each other on both sides of the longitudinal beam body; A plurality of the first tension screws are provided on both sides of the fixing plate. The first tension screws on any one of the fixing plates penetrate the other fixing plate and are bolted to the first locking bolts.

3. The steel structure connection node according to claim 2, characterized in that: The crossbeam fixing member also includes a fixing hole; The fixing holes are evenly distributed on the fixing plate along the periphery of the crossbeam body.

4. The steel structure connection node according to claim 1, characterized in that: The longitudinal beam fixing member includes a tension plate, a second tension screw and a second locking bolt; Wherein, two tension plates are arranged opposite to each other on both sides of the longitudinal beam body; The second tensioning screw rod passes through the longitudinal beam body and the two tensioning plates at the same time and is bolted to the second locking bolt.

5. The steel structure connection node according to claim 4, characterized in that: The longitudinal beam fixing member also includes a clamping plate, a fixing rod, a limiting ring and a spring; Wherein, two of the clasping plates are arranged opposite to each other on both sides of the two tensioning plates; The fixing rod is fixedly connected to the two sides of the two tension plates facing each other, and one end of the fixing rod is inserted into the interior of the clasping plate from the end of the clasping plate at the corresponding position; The limiting ring is connected to one end of the fixing rod which penetrates into the interior of the clasping plate; The spring is sleeved on the fixing rod, and one end of the spring is fixed to the limiting ring, and the other end is fixed to the embracing plate.

6. The steel structure connection node according to claim 5, characterized in that: The tension plate comprises a first clamping block, a second clamping block and an inserting block; Wherein, the first clamping block and the second clamping block are distributed on the left and right; The insert block is integrally connected to a side of the first clamping block facing the second clamping block; A slot for plugging and cooperating with the inserting block is formed on one side of the second clamping block facing the first clamping block.

7. The steel structure connection node according to claim 6, characterized in that: The insert block is provided with a strip-shaped adjustment hole corresponding to the second pair of tension screws.

8. The steel structure connection node according to claim 1, characterized in that: The supporting member comprises a supporting plate, a fixed block, a threaded rod and a movable block; Wherein, two fixing blocks are vertically fixed on both sides of the top of the support plate; The threaded rod is threadedly connected to and passes through the fixing block; The movable block is slidably connected to the supporting plates on the opposite sides of the two fixed blocks, and the movable block is rotatably connected to the threaded rod.

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