CN111719403B - Bridge connecting device - Google Patents
Bridge connecting device Download PDFInfo
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- CN111719403B CN111719403B CN202010773807.4A CN202010773807A CN111719403B CN 111719403 B CN111719403 B CN 111719403B CN 202010773807 A CN202010773807 A CN 202010773807A CN 111719403 B CN111719403 B CN 111719403B
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- plate
- plate body
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D12/00—Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge construction, in particular to a bridge connecting device. A bridge connecting device comprising: a support structure comprising a first opening and a second opening disposed in opposition; the first connecting piece and the second connecting piece which are arranged in parallel are arranged inside the supporting structure and are respectively close to the first opening and the second opening, and the first connecting piece and the second connecting piece are both of hollow structures. According to the bridge connecting device provided by the invention, the hollow structure is respectively communicated with the first opening and the second opening to form the first accommodating space and the second accommodating space which allow two bridge bodies to be connected to respectively penetrate through so as to realize the connection of the two bridge bodies, the connecting mode is high in strength, the construction is simple and convenient, and the labor and the financial resources are saved while the connecting strength is ensured.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a bridge connecting device.
Background
The turning bridge is formed on two banks or proper positions of a river instead of the designed axis position, the bridge structure is used as a turning body, the two half-bridge turning bodies are respectively turned to the designed axis position of the bridge, and the two half-bridges are fixedly connected by using the connecting device. Therefore, in order to secure the connection strength of the two half bridges, the stability and strength of the bridge connection device are very important. The connection of two current half-bridge rotators is direct welding usually, or utilizes concrete placement, and joint strength is lower, and the construction is inconvenient.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of low strength and inconvenient construction of the existing bridge connecting device.
In order to solve the above technical problem, the present invention provides a bridge connecting device, comprising:
a support structure comprising a first opening and a second opening disposed in opposition;
the first connecting piece and the second connecting piece which are arranged in parallel are arranged inside the supporting structure and are respectively close to the first opening and the second opening, the first connecting piece and the second connecting piece are of hollow structures and are respectively communicated with the first opening and the second opening, and a first accommodating space and a second accommodating space which allow two bridge bodies to be connected to penetrate through are formed.
The first connecting piece and the second connecting piece are both forged pieces.
The supporting structure is formed by welding weathering steel.
The supporting structure comprises a first plate body and a second plate body which are arranged at intervals relatively, and a supporting plate body which is arranged between the first plate body and the second plate body and connected with the first plate body and the second plate body.
The supporting plate body includes first backup pad and the second backup pad that is parallel to each other and the interval sets up, and with first backup pad is third backup pad and the fourth backup pad that the contained angle set up, first backup pad with the second backup pad perpendicular to first connecting piece with the second connecting piece sets up, and with first connecting piece with the second connecting piece is connected, third backup pad and fourth backup pad are parallel to each other and the interval sets up, third backup pad, fourth backup pad, first plate body and second plate body form and are used for connecting wait to connect the connecting portion of the support piece of bridge body.
Still including being used for connecting the first backup pad with the fifth backup pad of fourth backup pad, the fifth backup pad simultaneously with first plate body and second plate body vertical connection.
Still including locating the bracket structure of bearing structure outside.
The bracket structure includes third plate body and fourth plate body that are parallel to each other and the interval sets up, connects perpendicularly the third plate body with the fifth plate body of fourth plate body, and locate the third plate body with between the fourth plate body, and with the sixth plate body that the fifth plate body is connected and relative slope sets up, the fifth plate body with the second plate body is connected perpendicularly.
The included angle between the first supporting plate and the fourth supporting plate and the included angle between the fifth plate body and the sixth plate body are 40-50 degrees.
Still including locating hoisting accessory on the bearing structure.
The technical scheme of the invention has the following advantages:
1. the invention provides a bridge connecting device which comprises a supporting structure, and a first connecting piece and a second connecting piece which are arranged in the supporting structure, wherein the first connecting piece and the second connecting piece are arranged in parallel and are respectively arranged close to a first opening and a second opening which are oppositely arranged on the supporting structure, the first connecting piece and the second connecting piece are both of hollow structures and are respectively communicated with the first opening and the second opening to form a first accommodating space and a second accommodating space so as to allow two bridge bodies to be connected to penetrate through and realize the connection of the two bridge bodies.
2. According to the bridge connecting device provided by the invention, the first connecting piece and the second connecting piece are forged pieces, and the supporting structure is formed by welding weathering steel, so that the strength of the connecting device is ensured.
3. The invention provides a bridge connecting device, wherein a supporting structure comprises a first plate body and a second plate body which are arranged at an interval relatively, and a supporting plate body which is arranged between the first plate body and the second plate body and is connected with the first plate body and the second plate body, the supporting effect on the connecting device is enhanced by utilizing the supporting plate body, the stress of the device is enhanced, and the device is more stable when being used for connecting a bridge body.
4. The invention provides a bridge connecting device, wherein a supporting plate body comprises a first supporting plate and a second supporting plate which are parallel to each other and arranged at intervals, and a third supporting plate and a fourth supporting plate which are arranged at an included angle with the first supporting plate, the first supporting plate and the second supporting plate are arranged perpendicular to a first connecting piece and a second connecting piece and are connected with the first connecting piece and the second connecting piece, the third supporting plate and the fourth supporting plate are arranged parallel to each other and arranged at intervals, the third supporting plate, the fourth supporting plate, the first plate body and the second plate body form a connecting part, and the connecting part is used for connecting a supporting piece of a bridge body to be connected and plays a role in auxiliary supporting of the bridge body.
5. According to the bridge connecting device provided by the invention, the bracket structure is arranged outside the supporting structure and comprises a third plate body and a fourth plate body which are parallel to each other and arranged at intervals, a fifth plate body which is vertically connected with the third plate body and the fourth plate body and is vertically connected with the second plate body, and a sixth plate body which is arranged between the third plate body and the fourth plate body, is connected with the fifth plate body and is arranged in a relatively inclined manner, and the bracket structure is used for connecting or obliquely supporting the supporting beam of the bridge body, so that the bridge body forms a stable structure system.
6. According to the bridge connecting device provided by the invention, the included angle between the first supporting plate and the fourth supporting plate and the included angle between the fifth plate body and the sixth plate body are 40-50 degrees, so that the connection between the device and a bridge body is more convenient while the supporting strength is ensured.
7. According to the bridge connecting device provided by the invention, the supporting structure is also provided with the hoisting piece for hoisting the connecting device and temporarily connecting the bridge body and the device.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a partial rear view structural diagram of the present invention.
Description of reference numerals:
1. a first connecting member; 2. a second connecting member; 3. a first plate body; 4. a third support plate; 5. a fourth support plate; 6. a first support plate; 7. a sixth support plate; 8. a second support plate; 9. a second plate body; 10. a fifth support plate; 11. a first package board; 12. a second package board; 13. a third plate body; 14. a fifth plate body; 15. a fourth plate body; 16. a sixth plate body; 17. hoisting a piece; 18. a first opening; 19. a second opening.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
One embodiment of a bridge connection apparatus as shown in fig. 1 to 3, for connecting two half-bridge rotors of a rotor bridge, comprises: the supporting structure, locate the inside first connecting piece 1 and the second connecting piece 2 of supporting structure and locate the bracket structure of supporting structure outside.
As shown in fig. 1 and 2, the supporting structure includes a first plate 3 and a second plate 9 having the same shape and size, the first plate 3 and the second plate 9 are parallel to each other and spaced apart from each other to form a first opening 18 and a second opening 19 disposed opposite to each other, a first connecting member 1 and a second connecting member 2 are disposed between the first plate 3 and the second plate 9 and vertically connected to the first plate 3 and the second plate 9, the first connecting member 1 and the second connecting member 2 penetrate the second plate 9 and are clamped to the second plate 9, the first connecting member 1 and the second connecting member 2 are disposed close to the first opening 18 and the second opening 19, respectively, the first connecting member 1 and the second connecting member 2 are both hollow structures, i.e. the middle part is provided with a square through hole, the hollow structure is respectively communicated with the first opening 18 and the second opening 19, a first accommodating space and a second accommodating space are formed, and the two accommodating spaces are communicated.
As shown in fig. 2, the supporting structure further includes a supporting plate disposed between the first plate 3 and the second plate 9 and connected to the first plate 3 and the second plate 9. The supporting plate body comprises a first supporting plate 6 and a second supporting plate 8 which are parallel to each other and arranged at intervals, and a third supporting plate 4 and a fourth supporting plate 5 which are arranged at an included angle of 48 degrees with the first supporting plate 6. First backup pad 6 and 8 perpendicular to first connecting piece 1 of second backup pad and second connecting piece 2 and be connected with first connecting piece 1 and second connecting piece 2, distribute in the left and right sides of first connecting piece 1 and second connecting piece 2, third backup pad 4 and fourth backup pad 5 are parallel to each other and the interval sets up, and 4 one end of third backup pad is connected with first connecting piece 1 side, and 5 one end of fourth backup pad are connected with the middle part of first backup pad 6. The other ends of the third and fourth support plates 4, 5 form, with the first and second plate bodies 3, 9, a connection portion for connecting the support members of the bridge body to be connected. A fifth supporting plate 10 vertically connected with the first plate body 3 and the second plate body 9 is arranged between the first supporting plate 6 and the fourth supporting plate 5, one end of the fifth supporting plate 10 is connected with the fourth supporting plate 5, and the other end of the fifth supporting plate is connected with the second connecting piece 2 to form a triangular structure. A sixth supporting plate 7 is arranged along the extending direction of the first supporting plate 6 and connected with the second connecting piece 2, and the sixth supporting plate 7 is respectively vertically connected with the first plate body 3 and the second plate body 9.
As shown in fig. 1, the bracket structure is disposed on the upper portion of the second plate 9 and located between the first connecting member 1 and the second connecting member 2, and includes a third plate 13 and a fourth plate 15 which are parallel to each other and spaced apart from each other, a fifth plate 14 which vertically connects the third plate 13 and the fourth plate 15, and a sixth plate 16 which is disposed between the third plate 13 and the fourth plate 15 and connected to the fifth plate 14 and disposed at an included angle of 48 °, wherein the third plate 13, the fourth plate 15 and the fifth plate 14 are all vertically connected to the second plate 9.
As shown in fig. 1 and 2, a first package board 11 is disposed between the first board body 3 and the second board body 9 and outside the second support plate 8, a second package board 12 is disposed between the first package board 11 and the first connecting member 1, and the first package board 11 and the second package board 12 protect the support board body, the first connecting member 1 and the second connecting member 2 and reduce corrosion.
As shown in fig. 1, two spaced hangers 17 are disposed on four peripheral sides of the second opening 19, and two spaced hangers 17 are disposed on four peripheral sides of the connecting portion formed by the first plate 3 and the second plate 9 at the other ends of the third support plate 4 and the fourth support plate 5.
In this embodiment, the first connecting piece 1 and the second connecting piece 2 are both forged pieces, the support structure and the bracket structure are both formed by welding weathering steel, the forged pieces are made of S355J2, and the weathering steel is made of Q355 NHD.
The concrete processing method of the bridge connecting device of the embodiment comprises the following steps:
(1) and (4) performing rough machining on the whole forge piece, and reserving 50mm machining milling allowance.
(2) The first plate body 3, the third supporting plate 4, the fourth supporting plate 5, the first supporting plate 6, the sixth supporting plate 7, the second supporting plate 8 and the two forging pieces are assembled, and the forging piece nodes adopt the assembling and welding sequence of step-by-step bulk assembly and integral welding. The first plate body 3 is added in the length direction during blanking and is provided with a 1mm allowance, and the end head forging end is used as a reference end for assembly welding. Welding seams between the supporting plate body and the forge piece are welded by adopting a construction process of symmetrical welding, the welding method is FCAW, the welding wire adopts E491T1-GC, pre-heating before welding and heat preservation after welding are required during welding, and the verticality is required to be controlled during assembly welding; the groove adopts double grooves and is subjected to back gouging welding. Welding parameters of vertical welding: bottom current 145-280A, bottom voltage: 24-30V; fill current 200-: 26-32V; cap current 195-245A, cap voltage: 26-30V; the speed is 6-14 cm/min. Preheating by adopting electric heating before welding at the preheating temperature of 80-120 ℃, wherein multiple layers and multiple welding are needed for welding, wide welding is strictly forbidden, alternate welding is needed during welding of double-groove welding seams, the interlayer temperature is controlled to be 120-180 ℃, electric heating is carried out to 250-350 ℃ after welding, and heat preservation is carried out for 2 hours.
(3) Welding the second plate body 9, and firstly welding a welding seam between the support plate body and the second plate body 9; then welding seams between the first plate body 3 and the second plate body 9 and the forge piece are integrally welded, the first plate body 3 and the forge piece adopt FCAW + SAW, the plate should be turned over frequently during welding, and pre-heating before welding and heat preservation after welding are noticed; during welding, the depth of the inner groove is half of that of the gas shield welding groove, the outer groove is back gouged, then the gas shield welding is performed for two backing passes, then the submerged-arc welding is performed for half of the depth of the groove, then the gas shield welding is completed to complete the inner groove welding, and the submerged-arc welding is completed to complete the outer groove welding.
(4) And sealing plates are constructed among the first packaging plate 11, the second packaging plate 12 and the supporting plate body on the outer side in a welding mode, and the verticality is well controlled during assembly.
(5) The third plate body 13, the fourth plate body 15 and the fifth plate body 14 are integrally assembled into an I shape, the sixth plate body 16 which is not welded with the second plate body 9 is not integrally assembled, and fillet welds of 10mm on two sides of the third plate body 13, the fourth plate body 15 and the fifth plate body 14 are formed.
(6) And integrally welding the I-shaped bracket, and intentionally controlling the positioning precision of the bracket in the assembling process.
(7) And (3) welding the sixth plate body 16, and controlling the inclination angle of the sixth plate body 16 to ensure accurate positioning.
(8) And (5) assembling and welding the hoisting piece 17, connecting parts such as the lug plate and the like according to the deep drawing, and performing end hoisting lug plate weld joint flaw detection after the integral welding is completed for 24 hours. And (4) after the component is manufactured, carrying out overall acceptance, and checking whether the appearance size, the welding seam forming and the like are qualified.
In the embodiment, the device performs integral annealing after welding, the annealing temperature is 500-600 ℃, the temperature is kept for 10 hours, furnace cooling is performed, forging and welding stress is eliminated, and the integral mechanical property of the component is improved.
When the bridge connecting device of the embodiment is used for connecting two bridge bodies, one bridge body to be connected penetrates into the first opening 18 from the second opening 19, the inclined beam of the bridge body to be connected is connected with the connecting part formed by the third supporting plate 4 and the fourth supporting plate 5, the first plate body 3 and the second plate body 9, the beam or the supporting beam of the bridge body to be connected is connected with the bracket structure, the bridge body and the bridge connecting device are temporarily connected by using the hoisting part 17, finally, the other bridge body is connected with the bridge body from the first opening 18, and the bridge connecting device and the bridge body are welded and fixed.
As an alternative embodiment, the angle between the first support plate 6 and the fourth support plate 5 and the angle between the fifth plate body 14 and the sixth plate body 16 may each have any value between 40 ° and 50 °.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A bridge connecting device, comprising:
a support structure comprising a first opening (18) and a second opening (19) arranged opposite;
the first connecting piece (1) and the second connecting piece (2) which are arranged in parallel are arranged inside the supporting structure and are respectively close to the first opening (18) and the second opening (19), the first connecting piece (1) and the second connecting piece (2) are both of hollow structures, the hollow structures of the first connecting piece (1) are communicated with the first opening (18) to form a first containing space, the hollow structures of the second connecting piece (2) are communicated with the second opening (19) to form a second containing space, and the first containing space and the second containing space allow the bridge body to be connected to run through.
2. A bridge connection device according to claim 1, characterised in that the first (1) and second (2) connection members are both forgings.
3. A bridge connecting device as claimed in claim 1 or 2, wherein the support structure is welded of weathering steel.
4. A bridge connection device according to claim 3, wherein the support structure comprises a first plate (3) and a second plate (9) which are arranged at an interval, and a support plate which is arranged between the first plate (3) and the second plate (9) and is connected with the first plate (3) and the second plate (9).
5. A bridge connection device according to claim 4, wherein the support plate body comprises a first support plate (6) and a second support plate (8) arranged parallel to and spaced apart from each other, and a third supporting plate (4) and a fourth supporting plate (5) which form an included angle with the first supporting plate (6), the first support plate (6) and the second support plate (8) are arranged perpendicular to the first connecting piece (1) and the second connecting piece (2), and is connected with the first connecting piece (1) and the second connecting piece (2), the third supporting plate (4) and the fourth supporting plate (5) are parallel to each other and arranged at intervals, the third supporting plate (4), the fourth supporting plate (5), the first plate body (3) and the second plate body (9) form a connecting part for connecting the supporting pieces of the bridge body to be connected.
6. A bridge connection device according to claim 5, further comprising a fifth support plate (10) for connecting the first support plate (6) and the fourth support plate (5), the fifth support plate (10) being connected perpendicularly to both the first plate body (3) and the second plate body (9).
7. A bridge connecting device according to claim 5 or 6, further comprising a corbel structure provided on the exterior of the support structure.
8. A bridge connecting device according to claim 7, characterized in that the bracket structure comprises a third plate body (13) and a fourth plate body (15) which are parallel to each other and arranged at an interval, a fifth plate body (14) which vertically connects the third plate body (13) and the fourth plate body (15), and a sixth plate body (16) which is arranged between the third plate body (13) and the fourth plate body (15) and connected with the fifth plate body (14) and arranged relatively obliquely, wherein the fifth plate body (14) and the second plate body (9) are vertically connected.
9. A bridge connection device according to claim 8, characterised in that the angle between the first support plate (6) and the fourth support plate (5) and the angle between the fifth plate body (14) and the sixth plate body (16) are 40-50 °.
10. Bridge connection device according to claim 1 or 2, further comprising a sling (17) provided on said support structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773807.4A CN111719403B (en) | 2020-08-04 | 2020-08-04 | Bridge connecting device |
| PCT/CN2021/110217 WO2022028393A1 (en) | 2020-08-04 | 2021-08-03 | Bridge connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773807.4A CN111719403B (en) | 2020-08-04 | 2020-08-04 | Bridge connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111719403A CN111719403A (en) | 2020-09-29 |
| CN111719403B true CN111719403B (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010773807.4A Active CN111719403B (en) | 2020-08-04 | 2020-08-04 | Bridge connecting device |
Country Status (2)
| Country | Link |
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| CN (1) | CN111719403B (en) |
| WO (1) | WO2022028393A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719403B (en) * | 2020-08-04 | 2021-11-19 | 中建钢构江苏有限公司 | Bridge connecting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217321A (en) * | 1996-02-09 | 1997-08-19 | Okabe Co Ltd | Arch concrete work execution method |
| CN101130943A (en) * | 2007-08-13 | 2008-02-27 | 中铁大桥勘测设计院有限公司 | Pin-and-hole auxiliary closure method for steel girder bridge |
| CN107217603A (en) * | 2017-06-06 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | Steel case arch ring vertical turn turning hinge and steel case arch ring vertical turn construction method |
| CN206800168U (en) * | 2017-04-27 | 2017-12-26 | 上海林同炎李国豪土建工程咨询有限公司 | A kind of steel pipe complementary coupling mechanisms for tubular arch |
| CN108252425A (en) * | 2018-03-28 | 2018-07-06 | 福州大学 | A kind of steel tube confined concrete node structure and corresponding truss structure and construction method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018089558A1 (en) * | 2016-11-08 | 2018-05-17 | University Of Notre Dame Du Lac | Modular truss joint |
| CN111719403B (en) * | 2020-08-04 | 2021-11-19 | 中建钢构江苏有限公司 | Bridge connecting device |
-
2020
- 2020-08-04 CN CN202010773807.4A patent/CN111719403B/en active Active
-
2021
- 2021-08-03 WO PCT/CN2021/110217 patent/WO2022028393A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217321A (en) * | 1996-02-09 | 1997-08-19 | Okabe Co Ltd | Arch concrete work execution method |
| CN101130943A (en) * | 2007-08-13 | 2008-02-27 | 中铁大桥勘测设计院有限公司 | Pin-and-hole auxiliary closure method for steel girder bridge |
| CN206800168U (en) * | 2017-04-27 | 2017-12-26 | 上海林同炎李国豪土建工程咨询有限公司 | A kind of steel pipe complementary coupling mechanisms for tubular arch |
| CN107217603A (en) * | 2017-06-06 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | Steel case arch ring vertical turn turning hinge and steel case arch ring vertical turn construction method |
| CN108252425A (en) * | 2018-03-28 | 2018-07-06 | 福州大学 | A kind of steel tube confined concrete node structure and corresponding truss structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111719403A (en) | 2020-09-29 |
| WO2022028393A1 (en) | 2022-02-10 |
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