CN113529979A - Exempt from welded rack node reinforced structure - Google Patents
Exempt from welded rack node reinforced structure Download PDFInfo
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- CN113529979A CN113529979A CN202110874614.2A CN202110874614A CN113529979A CN 113529979 A CN113529979 A CN 113529979A CN 202110874614 A CN202110874614 A CN 202110874614A CN 113529979 A CN113529979 A CN 113529979A
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 115
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to a welding-free net rack node reinforcing structure, and belongs to the technical field of steel net rack structure reinforcing. The welding-free net rack node reinforcing structure comprises two pairs of middle reinforcing hoop pairs and opposite pulling components or end reinforcing hoop pairs and reinforcing steel wire ropes, the middle reinforcing hoop pairs are respectively hooped on two net rack pull rods which are 180 degrees at two radial sides of a bolt ball, the opposite pulling components comprise opposite pulling screw rods and fastening nuts in threaded connection with the opposite pulling screw rods, and the middle reinforcing hoop pairs and the opposite pulling components form a middle node reinforcing structure; the end part reinforcing hoops are oppositely arranged and used for hooping the net rack pull rod connected with the bolt ball at the end part of the steel net rack structure, the reinforcing steel wire rope surrounds the bolt ball, two ends of the reinforcing steel wire rope are fixedly connected with the end part reinforcing hoop pair to be in a tight state, and the end part reinforcing hoop pair and the reinforcing steel wire rope form an end part node reinforcing structure; the bolt-ball connecting nodes are reinforced in a welding-free mode, and the firmness and safety of each connecting node are guaranteed.
Description
Technical Field
The invention relates to the technical field of steel net rack structure reinforcement, in particular to a welding-free net rack node reinforcement structure.
Background
The steel net frame structure is a space structure formed by connecting a plurality of rod pieces through nodes according to a certain grid form, has the advantages of small space stress, light weight, high rigidity, good anti-seismic performance and the like, and can be used as a roof of buildings such as gymnasiums, movie theaters, exhibition halls, waiting halls, stadium awnings, hangars, bidirectional large-column-distance frames and the like.
In the actual use process of the steel mesh frame structure, due to factors such as function change, decoration and fitment, the actual load may exceed the original design load of the mesh frame, and therefore the mesh frame structure needs to be reinforced. The traditional steel net frame generally has two types of welding ball joints and bolt ball joints. For the welded ball joint net frame, the welded ball joint net frame can be reinforced by adopting a welding sleeve and other modes. For the bolt ball net frame, when the bearing capacity of the pressure lever is insufficient, a method of welding a sleeve rod for reinforcement can be generally adopted. However, if the bearing capacity of the pull rod and the ball joint is insufficient, the traditional reinforcing method is difficult to process because the welding process adopted by the bolt ball is very complicated.
Disclosure of Invention
In view of this, the present invention provides a welding-free net rack node reinforcing structure, so as to solve the technical problem in the prior art that the reinforcing treatment of the bolt ball node is difficult.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a welding-free net rack node reinforcing structure comprises a middle reinforcing hoop pair and a split component, wherein the middle reinforcing hoop pair is provided with two pairs which are respectively and correspondingly hooped on two net rack pull rods which are positioned on two radial sides of the same bolt ball and form an angle of 180 degrees;
the middle reinforcing hoop pair comprises two hoops with the same structure, each hoop comprises a semi-arc hoop plate, wing plates connected to the two radial ends of the semi-arc hoop plate and flange connecting plates welded to the two axial sides of the semi-arc hoop plate, each flange connecting plate is in a semi-circular shape, the outer diameter of each flange connecting plate is larger than that of each semi-arc hoop plate, the inner arc surfaces of the flange connecting plates and the inner arc surfaces of the semi-arc hoop plates are superposed in the projection direction of the axial line of the rack pull rod, at least two opposite-pull through holes are uniformly arranged on each flange connecting plate along the circumferential direction of the flange connecting plate, and bolt connecting holes are arranged on the wing plates, the counter-pulling screw rods simultaneously penetrate through the counter-pulling through holes on the four flange connecting plates at corresponding positions, fastening nuts in threaded connection with corresponding counter-pulling screws are arranged on the opposite sides of the two flange connecting plates on each hoop, and the two hoops are respectively hooped on the outer circumference of the net rack pull rod from the upper side and the lower side of the net rack pull rod in the radial direction;
or the welding-free net rack node reinforcing structure comprises a pair of end reinforcing hoops and reinforcing steel wire ropes, wherein the pair of end reinforcing hoops is used for hooping the net rack pull rod connected with the bolt ball at the end part of the steel net rack structure, the reinforcing steel wire ropes surround the bolt ball, the two ends of the reinforcing steel wire ropes are fixedly connected with the pair of end reinforcing hoops so that the reinforcing steel wire ropes are in a tightened state, and the pair of end reinforcing hoops and the reinforcing steel wire ropes form an end node reinforcing structure;
the end part reinforcing hoop pair comprises two hoops with the same structure, each hoop comprises a semi-arc hoop plate, wing plates connected to the two radial ends of the semi-arc hoop plate and flange connecting plates welded to the two axial sides of the semi-arc hoop plate, each flange connecting plate is in a semi-circular shape, the outer diameter of each flange connecting plate is larger than that of each semi-arc hoop plate, the inner arc surfaces of the flange connecting plates and the inner arc surfaces of the semi-arc hoop plates are superposed in the projection direction of the axial line of the rack pull rod, at least two connecting through holes are uniformly arranged on each flange connecting plate along the circumferential direction of the flange connecting plate, and bolt connecting holes are formed in the wing plates; a reinforcing screw rod penetrates through at least one corresponding connecting through hole on the two flange connecting plates, reinforcing nuts are respectively connected to the opposite sides of the reinforcing screw rod on the two flange connecting plates in a threaded manner, and one end of the reinforcing screw rod, which is close to the bolt ball, is fixedly connected with one end of the reinforcing steel wire rope; or a reinforcing screw rod is connected in at least one connecting perforation on the flange connecting plate far away from the bolt ball in a penetrating manner, one end of the reinforcing screw rod far away from the bolt ball is connected with a reinforcing nut in a threaded manner, one end of the reinforcing screw rod close to the bolt ball is positioned between the two flange connecting plates and is provided with a hook, and one end of a reinforcing steel wire rope penetrates through the connecting perforation on the flange connecting plate close to the bolt ball and is connected with the hook so as to be in a tightening state.
The beneficial effects of the above technical scheme are: the welding-free net rack node reinforcing structure can reinforce the bolt-ball connecting node in the middle of the steel net rack structure or reinforce the bolt-ball connecting node at the end of the steel net rack structure. When the bolt-ball connecting node in the middle position is reinforced, the hoop pair is adopted to carry out split-draw method, the middle reinforcing hoop pair respectively hoops the net rack pull rods which are arranged at two sides of the bolt-ball in 180 degrees, the rigidity of the net rack pull rods can be increased, the middle reinforcing hoop pair does not need to be welded with the net rack pull rods, the two wing plates of the middle hoop pair can be connected by adopting high-strength bolts, welding operation is avoided, welding stress is correspondingly reduced, after the net rack pull rods are reinforced, the split-draw screw rods are adopted to carry out split-draw reinforcement on the two pairs of middle reinforcing hoop pairs, namely, the net rack pull rods are prevented from moving along the radial outer sides of the bolt-ball, the net rack pull rods are also prevented from moving along the radial inner sides of the bolt-ball, and the stability of the middle bolt-ball connecting node is improved. When the bolt ball joint at the end position is reinforced, a method of tensioning the steel wire rope by using the hoop is adopted. No matter which position's connected node is consolidated, whole journey all need not welding operation, the construction of being convenient for when actual reinforcement is favorable to guaranteeing the intensity and the stability of each connected node department of steel mesh frame structure to guarantee the safety of whole steel mesh frame.
Furthermore, the end reinforcing hoop pair and the middle reinforcing hoop pair have the same structure, and the length of the semi-arc hoop plate is greater than the distance between the two flange connecting plates on the two axial sides of the semi-arc hoop plate along the axis direction of the semi-arc hoop plate.
Has the advantages that: the axial both ends of half arc hoop board stretch out the outside of two flange joint boards respectively to improve the staple bolt and the axial area of contact of rack pull rod, improve the staple bolt and to the tight effect of cramping of rack pull rod.
Furthermore, at least two reinforcing rib plates are uniformly welded on the outer peripheral surface of the semi-arc hoop plate along the circumferential direction, the reinforcing rib plates are simultaneously welded and connected with the flange connecting plates on the two axial sides of the semi-arc hoop plate, and the welding positions of the reinforcing rib plates and the flange connecting plates are positioned between two adjacent counter-pulling through holes or two adjacent connecting through holes on the flange connecting plates.
Has the advantages that: the reinforcing rib plate is arranged to help improve the structural strength of the hoop.
Preferably, the bottom surface of the flange connecting plate is flush with the bottom surface of the wing plate.
Has the advantages that: when the net rack pull rod is hooped by the two hoops of the hoop pair, the wing plates of the two hoops can be attached tightly, so that the connecting strength of the two hoops is ensured.
Preferably, the inner arc surface of the semi-arc hoop plate is coated with steel adhesive.
Has the advantages that: the connection degree between the semi-circular hoop plate and the rack pull rod is improved.
Furthermore, the surfaces of the reinforcing steel wire rope and the bolt ball are bonded by structural adhesive.
Has the advantages that: the connection strength between the reinforcing steel wire rope and the bolt ball is improved, and the reinforcing steel wire rope is kept in a tightened state, so that the reinforcing strength is improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of the welding-free net rack node reinforcement structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
fig. 4 is a schematic structural view of a middle reinforcing hoop centering hoop in embodiment 1 of the welding-free net rack node reinforcing structure of the present invention;
fig. 5 is a schematic structural view of an embodiment 2 of the welding-free net rack node reinforcement structure of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
fig. 7 is a sectional view B-B of fig. 6.
Reference numerals: 1-middle bolt ball, 2-net rack pull rod, 3-semi-arc hoop plate, 4-wing plate, 5-flange connecting plate, 6-split through hole, 7-fastening nut, 8-split screw rod, 9-reinforcing rib plate, 10-high-strength bolt, 11-end bolt ball, 12-net rack pull rod, 13-semi-arc hoop plate, 14-wing plate, 15-flange connecting plate, 16-connecting through hole, 17-reinforcing screw rod, 18-reinforcing steel wire rope, 19-steel wire rope fastener and 20-reinforcing nut.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The concrete embodiment 1 of the welding-free net rack node reinforcing structure of the invention:
as shown in fig. 1, the welding-free net rack node reinforcing structure comprises a middle reinforcing hoop pair and a counter-pulling component. Two pairs of middle reinforcing hoops are correspondingly hooped on two net rack pull rods 2 which are positioned at two radial sides of the same middle bolt ball 1 and form an angle of 180 degrees respectively. As shown in fig. 2, 3 and 4, the middle reinforcing hoop pair includes two hoops having the same structure, and each hoop includes a semi-arc hoop plate 3, wing plates 4 welded to both ends of the semi-arc hoop plate 3 in the radial direction, and flange connection plates 5 welded to both sides of the semi-arc hoop plate 3 in the axial direction. The inner diameter of the semi-arc hoop plate 3 is the same as the radius of the net rack pull rod 2 to be hooped, the wing plates 4 are parallel to the axis of the semi-arc hoop plate 3, and each wing plate 4 is provided with two bolt connecting holes which are arranged at intervals. The flange joint board 5 is the semicircle ring-type, and 5 external diameters of flange joint board are greater than the external diameter of half arc hoop board 3, and when flange joint board 5 and the welding of half arc hoop board 3, the intrados of flange joint board 5 and the projection coincidence of the intrados of half arc hoop board 3 on the axis direction of rack pull rod 2.
Five counter-pulling through holes 6 are uniformly arranged on the flange connecting plate 5 along the circumferential direction of the flange connecting plate, and the counter-pulling assembly comprises a counter-pulling screw 8 and a fastening nut 7 which is in threaded connection with the counter-pulling screw 8. In this embodiment, the split screw 8 passes through the split through holes 6 at the corresponding positions on the four flange connecting plates 5 at the same time, and the fastening nuts 7 in threaded connection with the corresponding split screw 8 are arranged on the opposite sides of the two flange connecting plates 5 on each hoop. The middle reinforcing hoop pair and the opposite-pulling component form a middle node reinforcing structure. In actual installation, to drawing screw rod 8 and being provided with two at least, every staple bolt all wears to be equipped with one at least to drawing screw rod 8 according to the installation environment on-the-spot, selecting suitable to drawing perforation 6 and wearing the dress, taking place to interfere with the structure around middle bolt ball 1 with avoiding. Two hoops centered by the same middle reinforcing hoop are respectively hooped on the outer circumference of the net rack pull rod 2 from the radial upper side and the radial lower side of the net rack pull rod 2, and finally, the two corresponding wing plates 4 are connected together by adopting high-strength bolts 10.
In order to strengthen the staple bolt in the middle of further improving and to the joint strength between the rack pull rod 2, in this embodiment, along the axis direction of half arc hoop board 3, the length of half arc hoop board 3 is greater than the distance between two flange joint boards 5 of 3 axial both sides of half arc hoop board, make the axial both ends of half arc hoop board 3 stretch out the outside of two flange joint boards 5 respectively, thereby improve the axial area of contact of staple bolt and rack pull rod 2, improve the effect of cramping of staple bolt to rack pull rod 2. In addition, the inner arc surface of the semi-circular hoop plate 3 is coated with sticky steel glue to improve the bonding strength between the semi-circular hoop plate 3 and the net rack pull rod 2. The tensile strength of the steel bonding adhesive is not lower than 33Mpa, the thermal deformation temperature is higher than 65 ℃, and the tensile shear strength of the steel is not lower than 17 Mpa. In addition, the bottom surface of flange joint board 5 is the parallel and level with the bottom surface of pterygoid lamina 4, and when fastening the staple bolt, two staple bolts can paste tightly and fasten like this.
In this embodiment, in order to improve the strength of the hoop, four reinforcing ribs 9 are uniformly welded on the outer circumferential surface of the semi-arc hoop plate 3 along the circumferential direction, the reinforcing ribs 9 are simultaneously welded to the flange connecting plates 5 on both sides of the semi-arc hoop plate 3 in the axial direction, and the welding positions of the reinforcing ribs 9 and the flange connecting plates 5 are located between two adjacent opposite-drawing through holes 6 on the flange connecting plates 5.
The welding-free net rack node reinforcing structure adopts a hoop pair opposite pulling method, the middle reinforcing hoop pair respectively hoops the net rack pull rods which are arranged at two sides of the bolt ball in a 180-degree mode, the rigidity of the net rack pull rods can be increased, the middle reinforcing hoop pair does not need to be welded with the net rack pull rods, the two wing plates of the middle hoop pair can be connected by adopting high-strength bolts, welding operation is avoided, welding stress is correspondingly reduced, and after the net rack pull rods are reinforced, opposite pulling and reinforcing are carried out on the two pairs of middle reinforcing hoop pairs by adopting opposite pulling screw rods, namely, the net rack pull rods are prevented from moving along the radial outer sides of the bolt balls, the net rack pull rods are prevented from moving along the radial inner sides of the bolt balls, and the stability of the middle bolt ball connecting nodes is improved.
The concrete embodiment 2 of the welding-free net rack node reinforcing structure of the invention:
as shown in fig. 5, 6 and 7, the welding-free net rack node reinforcing structure of the present embodiment includes a pair of end reinforcing hoops and reinforcing steel cables 18 for reinforcing the connection node with the end bolt ball 11 of the steel net rack structure. The end reinforcing hoop pair is provided with a pair of hoops for hooping the net rack pull rod 12 connected with the end bolt ball 11, and comprises two hoops with the same structure, each hoop comprises a semi-arc hoop plate 13, wing plates 14 connected to the radial two ends of the semi-arc hoop plate 13 and flange connecting plates 15 welded to the two axial sides of the semi-arc hoop plate 13, and the structures and the connection relations of the semi-arc hoop plate 13, the wing plates 14 and the flange connecting plates 15 are the same as the structures and the connection relations of the semi-arc hoop plate 3, the wing plates 4 and the flange connecting plates 5 in the embodiment 1, and the connection relations between the three are uniform and corresponding, and detailed description is omitted here.
In this embodiment, a tie screw is not required to be provided, but a reinforcing screw 17 is inserted into each hoop, at this time, the through hole provided in the flange connection plate 15 is a connection through hole 16, and the reinforcing screw selects two connection through holes 16 on the two flange connection plates 15 that do not interfere with other structures to be inserted according to the installation environment on site. The two ends of the reinforcing screw 17 extend out of the flange connecting plates 15, and reinforcing nuts 20 are connected to the opposite sides of the two flange connecting plates 15 in a threaded mode. One end of the reinforcing screw 17 close to the end bolt ball 11 is fixedly connected with one end of the reinforcing steel wire rope 18.
As shown in fig. 5, the reinforcing steel wire rope 18 surrounds the end bolt ball 11 and both ends of the reinforcing steel wire rope 18 are fixedly connected with the reinforcing screw rods 17 of the end reinforcing hoop pair to keep the reinforcing steel wire rope in a tightened state. In addition, a wire rope fastener 19 is arranged at one end of the reinforcing wire rope 18 far away from the end bolt ball 11, and structural adhesive is further coated between the reinforcing wire rope 18 and the surface of the end bolt ball 11 so as to enable the reinforcing wire rope and the end bolt ball to be tightly adhered. The pair of end reinforcing hoops and the reinforcing wire rope 18 form an end node reinforcing structure.
This embodiment adopts the staple bolt to consolidate the tip bolt ball department connected node of steel mesh frame structure to the method of adding the tight stretch-draw of wire rope, and whole journey all need not welding jobs, is convenient for be under construction when actually consolidating, is favorable to guaranteeing the intensity and the stability of each connected node department of steel mesh frame structure to guarantee the safety of whole steel mesh frame.
In other embodiments, a reinforcing screw rod may also be inserted into one of the connection through holes on the flange connection plates far away from the end bolt ball, one end of the reinforcing screw rod far away from the bolt ball is in threaded connection with a reinforcing nut, one end of the reinforcing screw rod near the end bolt ball is located between the two flange connection plates and is integrally formed with a hook, and one end of the reinforcing steel wire rope far away from the end bolt ball passes through the connection through hole on the flange connection plate near the end bolt ball and is connected with the hook to be in a tightened state.
In other embodiments, the reinforcing rib plate may not be provided even when the strength of the anchor ear itself can satisfy the reinforcing requirement.
In other embodiments, the bottom surface of the flange connecting plate may not be flush with the bottom surfaces of the wing plates, at this time, when the two hoops of the hoop pair are connected, only the bottom surfaces of the corresponding flange connecting plates are attached tightly, and when the high-strength bolt is used for connection, a small interval is formed between the two corresponding wing plates.
In other embodiments, the flange connecting plates may also be welded to the ends of the half-arc hoop plates, where the axial length of the half-arc hoop plates is equal to the distance between the two flange connecting plates.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A welding-free net rack node reinforcing structure is characterized by comprising two pairs of middle reinforcing hoops and a split component, wherein the two pairs of middle reinforcing hoops are respectively and correspondingly hooped on two net rack pull rods which are positioned on two radial sides of the same bolt ball and form an angle of 180 degrees;
the middle reinforcing hoop pair comprises two hoops with the same structure, each hoop comprises a semi-arc hoop plate, wing plates connected to the two radial ends of the semi-arc hoop plate and flange connecting plates welded to the two axial sides of the semi-arc hoop plate, each flange connecting plate is in a semi-circular shape, the outer diameter of each flange connecting plate is larger than that of each semi-arc hoop plate, the inner arc surfaces of the flange connecting plates and the inner arc surfaces of the semi-arc hoop plates are superposed in the projection direction of the axial line of the rack pull rod, at least two opposite-pull through holes are uniformly arranged on each flange connecting plate along the circumferential direction of the flange connecting plate, and bolt connecting holes are arranged on the wing plates, the counter-pulling screw rods simultaneously penetrate through the counter-pulling through holes on the four flange connecting plates at corresponding positions, fastening nuts in threaded connection with corresponding counter-pulling screws are arranged on the opposite sides of the two flange connecting plates on each hoop, and the two hoops are respectively hooped on the outer circumference of the net rack pull rod from the upper side and the lower side of the net rack pull rod in the radial direction;
or the welding-free net rack node reinforcing structure comprises a pair of end reinforcing hoops and reinforcing steel wire ropes, wherein the pair of end reinforcing hoops is used for hooping the net rack pull rod connected with the bolt ball at the end part of the steel net rack structure, the reinforcing steel wire ropes surround the bolt ball, the two ends of the reinforcing steel wire ropes are fixedly connected with the pair of end reinforcing hoops so that the reinforcing steel wire ropes are in a tightened state, and the pair of end reinforcing hoops and the reinforcing steel wire ropes form an end node reinforcing structure;
the end part reinforcing hoop pair comprises two hoops with the same structure, each hoop comprises a semi-arc hoop plate, wing plates connected to the two radial ends of the semi-arc hoop plate and flange connecting plates welded to the two axial sides of the semi-arc hoop plate, each flange connecting plate is in a semi-circular shape, the outer diameter of each flange connecting plate is larger than that of each semi-arc hoop plate, the inner arc surfaces of the flange connecting plates and the inner arc surfaces of the semi-arc hoop plates are superposed in the projection direction of the axial line of the rack pull rod, at least two connecting through holes are uniformly arranged on each flange connecting plate along the circumferential direction of the flange connecting plate, and bolt connecting holes are formed in the wing plates; a reinforcing screw rod penetrates through at least one corresponding connecting through hole on the two flange connecting plates, reinforcing nuts are respectively connected to the opposite sides of the reinforcing screw rod on the two flange connecting plates in a threaded manner, and one end of the reinforcing screw rod, which is close to the bolt ball, is fixedly connected with one end of the reinforcing steel wire rope; or a reinforcing screw rod is connected in at least one connecting perforation on the flange connecting plate far away from the bolt ball in a penetrating manner, one end of the reinforcing screw rod far away from the bolt ball is connected with a reinforcing nut in a threaded manner, one end of the reinforcing screw rod close to the bolt ball is positioned between the two flange connecting plates and is provided with a hook, and one end of a reinforcing steel wire rope penetrates through the connecting perforation on the flange connecting plate close to the bolt ball and is connected with the hook so as to be in a tightening state.
2. The weld-free grid joint reinforcing structure as defined in claim 1, wherein the end reinforcing hoop pair and the middle reinforcing hoop pair have the same structure, and the length of the semi-arc hoop plate is greater than the distance between the two flange connecting plates at two axial sides of the semi-arc hoop plate along the axial direction of the semi-arc hoop plate.
3. The welding-free net rack node reinforcing structure according to claim 1, wherein at least two reinforcing ribs are uniformly welded on the outer peripheral surface of the semi-arc hoop plate along the circumferential direction, the reinforcing ribs are simultaneously welded and connected with the flange connecting plates on two axial sides of the semi-arc hoop plate, and the welding positions of the reinforcing ribs and the flange connecting plates are positioned between two adjacent counter-pulling through holes or two adjacent connecting through holes on the flange connecting plates.
4. The weld-free grid joint reinforcement structure according to any one of claims 1 to 3, wherein the bottom surfaces of the flange connection plates are flush with the bottom surfaces of the wing plates.
5. The welding-free net rack node reinforcing structure according to any one of claims 1 to 3, wherein the inner arc surfaces of the semi-circular hoop plates are coated with steel adhesive.
6. The weld-free grid joint reinforcing structure according to claim 1, wherein the reinforcing steel wire ropes are bonded to the surfaces of the bolt balls by using structural adhesive.
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| CN202110874614.2A CN113529979A (en) | 2021-07-30 | 2021-07-30 | Exempt from welded rack node reinforced structure |
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| CN202110874614.2A CN113529979A (en) | 2021-07-30 | 2021-07-30 | Exempt from welded rack node reinforced structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434534A (en) * | 2022-09-13 | 2022-12-06 | 陕西省建筑科学研究院有限公司 | Reinforcing method for bolt defects of net rack web members |
| CN115492414A (en) * | 2022-09-13 | 2022-12-20 | 陕西省建筑科学研究院有限公司 | Reinforcing method for grid chord bolt defects |
| CN115929068A (en) * | 2022-12-02 | 2023-04-07 | 中铁二局集团有限公司 | Device for repairing bolt ball joint by using carbon fiber and repairing method thereof |
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| CN108532982A (en) * | 2018-05-09 | 2018-09-14 | 中建七局安装工程有限公司 | A method of replacing grid node |
| CN108560946A (en) * | 2018-05-09 | 2018-09-21 | 中建七局安装工程有限公司 | Replace the tool of grid node |
| CN208668733U (en) * | 2018-08-02 | 2019-03-29 | 山东天元建设工程监理有限公司 | A kind of attachment device of spherical net rack structure indoor suspended ceiling and rack ball node |
| CN109853851A (en) * | 2019-01-14 | 2019-06-07 | 皖西学院 | A kind of Concrete-filled tubular connections connection structure |
| CN210194876U (en) * | 2019-03-11 | 2020-03-27 | 重庆大学 | Connection node of raw bamboo cross beam and stand column |
| CN212055371U (en) * | 2020-04-20 | 2020-12-01 | 上海大唐移动通信设备有限公司 | Staple bolt unit spare and staple bolt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115434534A (en) * | 2022-09-13 | 2022-12-06 | 陕西省建筑科学研究院有限公司 | Reinforcing method for bolt defects of net rack web members |
| CN115492414A (en) * | 2022-09-13 | 2022-12-20 | 陕西省建筑科学研究院有限公司 | Reinforcing method for grid chord bolt defects |
| CN115929068A (en) * | 2022-12-02 | 2023-04-07 | 中铁二局集团有限公司 | Device for repairing bolt ball joint by using carbon fiber and repairing method thereof |
| CN115929068B (en) * | 2022-12-02 | 2023-09-05 | 中铁二局集团有限公司 | Device for repairing bolt ball node by carbon fiber and repairing method thereof |
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