CN218969780U - Support frame for girder end steel mould of simply supported double-line box girder of high-speed railway - Google Patents
Support frame for girder end steel mould of simply supported double-line box girder of high-speed railway Download PDFInfo
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- CN218969780U CN218969780U CN202223126314.5U CN202223126314U CN218969780U CN 218969780 U CN218969780 U CN 218969780U CN 202223126314 U CN202223126314 U CN 202223126314U CN 218969780 U CN218969780 U CN 218969780U
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Abstract
The application provides a steel mould supporting frame for a beam end of a simply supported double-line box beam of a high-speed railway. In the support frame, a support frame body is of a frame structure, wherein two cross beams and longitudinal beams are arranged in parallel, the two longitudinal beams are arranged between the two cross beams in parallel, and two ends of the longitudinal beams are connected with the two cross beams; four supporting beams are positioned at the joint of the longitudinal beam and the cross beam, and the lower ends of the supporting beams are connected to the cross beam; the two ends of the reinforcing beam are connected with the upper ends of the two supporting beams on the same cross beam; the number of the stabilizing beams is two, and the two ends of the stabilizing beams are connected with the upper ends of the supporting beams on the cross beams. Therefore, when the girder end steel mould is assembled and disassembled, the girder end steel mould is hung and placed on the support frame body; two end dies of the box girder are stored on two sides of the supporting girder which are oppositely arranged, so that the occupation of construction sites is effectively reduced, the box girder is neat and messy, operators can conveniently manage, repair and polish the steel mould, spray the isolating agent and install the anchor backing plate, and meanwhile, the gantry crane can conveniently and rapidly hoist the box girder end steel mould for assembly and disassembly operations.
Description
Technical Field
The application relates to the technical field of box girder construction, in particular to a railway simply supported double-line box girder end steel mould supporting frame.
Background
The box girder is hollow, and flange structures are arranged on two sides of the upper part, so that the box girder can be widely applied to bridge construction, wherein the box girder of a reinforced concrete structure is generally divided into a prefabricated box girder and a cast-in-situ box girder.
For the prefabricated box girder, the prefabricated box girder is transported to a construction site for erection after being processed in a girder field. When the box girder is processed in a girder field, two ends of the box girder are fixed by adopting steel dies, the box girder is manufactured after concrete is poured, and after the box girder is manufactured, the steel dies at the two ends are disassembled to manufacture the box girder with the next hole (truss). In the process, special equipment or devices are lacked to store and transfer the steel mold, and the steel mold is generally stacked on the ground at random in a beam casting field, so that a large amount of field space is occupied, field personnel and equipment collide easily, the steel mold is extremely unsafe, and great inconvenience is brought to prefabrication of the box girder.
Thus, there is a need to provide a solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims at providing a high-speed railway simply supported double-line box girder end steel mould support frame to solve or alleviate the problem that exists among the above-mentioned prior art.
In order to achieve the above object, the present application provides the following technical solutions:
the application provides a high-speed railway simply supported double line case roof beam girder end steel mould support frame, include: the support frame body is of a frame structure; the support frame body includes: the beam comprises a cross beam, a longitudinal beam, a supporting beam, a stiffening beam and a stabilizing beam; the two longitudinal beams are arranged between the two cross beams in parallel, and two ends of each longitudinal beam are respectively connected with the two cross beams; the four supporting beams are respectively positioned at the joints of the longitudinal beams and the cross beams, and the lower ends of the supporting beams are connected to the cross beams; the included angle between the supporting beam and the cross beam is an acute angle; two supporting beams on the same beam are symmetrically arranged on the beam; the two stiffening beams are arranged, and two ends of each stiffening beam are respectively connected with the upper ends of the two supporting beams on the same cross beam; the number of the stabilizing beams is two, and two ends of each stabilizing beam are respectively connected with the upper ends of the two supporting beams opposite to each other on the two cross beams.
Preferably, the cross beam and the longitudinal beam are fixedly connected; the lower end of the supporting beam is detachably connected with the cross beam; two ends of the reinforcing beam are detachably connected with the supporting beam; and two ends of the stabilizing beam are fixedly connected with the supporting beam.
Preferably, two ends of the cross beam are respectively provided with a limiting piece, and the corresponding limiting pieces on the two cross beams are symmetrically arranged along the middle surfaces of the two cross beams; the limiting piece is located on the upper surface of the cross beam and located on the outer side of the longitudinal beam.
Preferably, the limiting piece is T-shaped.
Preferably, the method further comprises: the supporting top pick is connected with the bottom surface of the cross beam; the number of the supporting top picks is 4, and two top picks are symmetrically arranged on each cross beam along the length direction of the cross beam; the corresponding top picks on the two cross beams are symmetrically arranged along the middle surfaces of the two cross beams.
Preferably, the supporting top pick includes: the hydraulic jack is characterized by comprising a connecting top plate, a hydraulic jack and a supporting bottom plate, wherein the connecting top plate is fixedly connected with the upper end of the hydraulic jack; the connecting top plate is provided with bolt holes so that isomorphic fasteners can be detachably connected with the bottom surface of the cross beam.
Preferably, the method further comprises: the mobile platforms are 4, and the 4 mobile platforms are respectively matched with the 4 supporting top picks; the movable platform is connected to the bottom surface of the cross beam.
Preferably, the mobile platform includes: the device comprises a connecting part, a damping spring, a walking installation part and walking wheels; the connection part includes: the top surface of the connecting plate is provided with a plurality of studs; a plurality of travelling wheels are symmetrically arranged on two sides of the travelling installation part; and two ends of the damping spring are respectively connected with the bottom surface of the connecting plate and the top surface of the walking installation part.
Preferably, the connection part further includes: the guide rods are arranged, the guide rods are positioned on the bottom surface of the connecting plate, and the walking installation part is correspondingly provided with a plurality of guide holes; the lower end of the guide rod passes through the guide hole and is connected with a limit nut.
Preferably, an installation groove is formed in the bottom surface of the connecting plate, and a first installation boss is coaxially arranged in the installation groove; a second installation boss is arranged on the top surface of the walking installation part; the damping spring both ends suit respectively in first installation boss in the second installation boss, just damping spring's top is located in the mounting groove.
The beneficial effects are that:
the embodiment of the application provides a high-speed railway simply supported double-line box girder end steel mould support frame, and the support frame body is frame construction, includes: the beam comprises a cross beam, a longitudinal beam, a supporting beam, a stiffening beam and a stabilizing beam; the two longitudinal beams are arranged in parallel, the two longitudinal beams are arranged between the two longitudinal beams in parallel, and two ends of each longitudinal beam are respectively connected with the two longitudinal beams; four supporting beams are respectively positioned at the joints of the longitudinal beams and the cross beams, and the lower ends of the supporting beams are connected to the cross beams; the included angle between the supporting beam and the cross beam is an acute angle; two supporting beams on the same beam are symmetrically arranged on the beam; the two ends of each reinforcing beam are respectively connected with the upper ends of two supporting beams on the same cross beam; the number of the stabilizing beams is two, and the two ends of each stabilizing beam are respectively connected with the upper ends of two supporting beams opposite to each other on the two cross beams.
Therefore, when the girder end steel mould is assembled and disassembled, the girder end steel mould is hung and placed on the support frame body; two end dies of the 1-hole box girder are respectively stored at two sides of the supporting beams which are oppositely arranged, so that the occupation of construction sites is effectively reduced, the two end dies are neat and messy, the steel die is convenient for operators to manage, repair and polish, spray and coat a spacer agent and install an anchor backing plate, and meanwhile, the box girder end steel die is convenient for the gantry crane to hoist rapidly for box girder end steel die mounting and dismounting operation.
The two supporting beams on the same beam are connected through the stiffening beam, so that the bearing capacity of the supporting beams is effectively enhanced, the two supporting beams on the same beam are integrated, after two end molds of the 1-hole box beam are respectively stored on two sides of the supporting beam, the pressure of the two side beam end steel molds on the supporting beam is mutually counteracted, the strength of the two supporting beams is improved, and the supporting beam is prevented from deforming. The upper ends of two supporting beams opposite to each other on the two cross beams are connected through the stabilizing beams, so that the supporting beams on the two cross beams form a whole, and the stability and the bearing capacity of the support frame body are further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. Wherein:
fig. 1 is a schematic structural diagram of a steel die support frame at a beam end of a simply supported double-line box girder of a high-speed railway according to some embodiments of the present application;
FIG. 2 is a front view of a support frame provided in accordance with some embodiments of the present application;
FIG. 3 is a top view of the support frame of FIG. 2;
FIG. 4 is a side view of the support body of FIG. 2;
FIG. 5 is a bottom view of the support housing of FIG. 2;
FIG. 6 is a schematic diagram of a mobile platform according to some embodiments of the present application;
FIG. 7 is a schematic structural view of a connection provided according to some embodiments of the present application;
fig. 8 is a schematic structural view of a supporting top pick provided in accordance with some embodiments of the present application;
fig. 9 is a schematic illustration of placement of a beam-end steel form provided in accordance with some embodiments of the present application.
Reference numerals illustrate:
1. a support frame body; 2. a mobile platform; 3. supporting the top pick, 4 and a beam end steel mould;
101. a cross beam; 102. a longitudinal beam; 103. a support beam; 104. a stabilizing beam; 105. a stiffening beam; 106. a limiting piece;
201. a connection part; 202. a walking installation part; 203. a damping spring; 211. a connecting plate; 212. a stud; 213. a guide rod; 214. a mounting groove; 215. a first mounting boss;
301. connecting a top plate; 302. a hydraulic jack; 303. and a supporting bottom plate.
Detailed Description
The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. Various examples are provided by way of explanation of the present application and not limitation of the present application. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present application without departing from the scope or spirit of the application. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present application include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
As shown in fig. 1 to 9, the beam end support frame for a simply supported double-line box beam of a high-speed railway is used for storing a beam end steel die 4 of a box beam, and comprises: the support frame body 1, the support frame body 1 is a frame structure; the support frame body 1 includes: cross beam 101, longitudinal beam 102, support beam 103, stiffening beam 105 and stabilizing beam 104.
In the application, two cross beams 101 and longitudinal beams 102 are arranged in parallel, two longitudinal beams 102 are arranged between the two cross beams 101 in parallel, and two ends of each longitudinal beam 102 are respectively connected with the two cross beams 101; four support beams 103 are respectively positioned at the joints of the longitudinal beam 102 and the cross beam 101, and the lower ends of the support beams 103 are connected to the cross beam 101; wherein the included angle between the supporting beam 103 and the cross beam 101 is an acute angle; two support beams 103 on the same cross beam 101 are symmetrically arranged on the cross beam 101; the two stiffening beams 105 are arranged, and the two ends of each stiffening beam 105 are respectively connected with the upper ends of two supporting beams 103 on the same cross beam 101; the number of the stabilizing beams 104 is two, and two ends of each stabilizing beam 104 are respectively connected with the upper ends of two opposite supporting beams 103 on the two cross beams 101.
That is, the two stringers 102 and the two cross members 101 form a frame structure as a base of the support frame body 1; four supporting beams 103 are respectively and uniformly distributed at the joints of the cross beam 101 and the longitudinal beam 102, and the two supporting beams 103 on the same cross beam 101 are symmetrically arranged and form an acute angle with the included angle of the cross beam 101, so that a stiffening beam 105 is connected between the two supporting beams 103, after two end molds are respectively stored at two sides of the supporting beams 103, the pressure of the beam end steel mold 4 on the supporting beams 103 is mutually counteracted, and the stability and the strength of the supporting frame body 1 are effectively improved.
The stabilizing beams 104 are connected between the two supporting beams 103 on the same side on the two cross beams 101, so that the stability of the beam end steel mould 4 placed on the same side is improved, deflection of the beam end steel mould 4 placed on the supporting beams 103 is avoided, and meanwhile, the four supporting beams 103 are connected into a whole by the reinforcing beams 105 and the stabilizing beams 104. Therefore, the two supporting beams 103 on the same cross beam 101 are connected through the reinforcing beam 105, so that the bearing capacity of the supporting beams 103 is effectively enhanced, the two supporting beams 103 on the same cross beam 101 are integrated, after two end molds of a 1-hole box beam are respectively stored on two sides of the supporting beams 103, the pressures of the two side beam end steel molds 4 on the supporting beams 103 are mutually offset, the strength of the two supporting beams 103 is improved, and the supporting beams 103 are prevented from deforming. The upper ends of the two opposite supporting beams 103 on the two cross beams 101 are connected through the stabilizing beam 104, so that the supporting beams 103 on the two cross beams 101 form a whole, and the stability and the bearing capacity of the supporting frame body 1 are further improved.
In this application, longeron 102, crossbeam 101, stiffening beam 105, stabilizing beam 104, supporting beam 103 all adopt standard section bar, are convenient for purchase processing, reduce the manufacturing cost of support body 1. Specifically, the longitudinal beam 102, the cross beam 101, the stiffening beam 105, the stabilizing beam 104 and the support beam 103 are all made of i-steel. Further, the cross beam 101 is fixedly connected with the longitudinal beam 102; the lower end of the supporting beam 103 is detachably connected with the cross beam 101; two ends of the reinforcement beam 105 are detachably connected with the support beam 103; both ends of the stabilizing beam 104 are fixedly connected with the supporting beam 103.
Specifically, connecting plates 211 are respectively provided at both end surfaces of the support beam 103, bolt holes are provided in the connecting plates 211 connected to the cross beam 101, and bolt holes are provided in the cross beam 101 (i-steel wing plates) correspondingly, so that the support beam 103 is connected to the cross beam 101 by fastening bolts. Connecting plates 211 are also arranged at the two ends of the reinforcing beam 105, and simultaneously, the connecting plates 211 at the two ends are respectively provided with bolt holes; correspondingly, bolt holes are formed in the inner side surfaces (the wing plates of the I-steel) of the support beam 103, and the two ends of the reinforcement beam 105 are connected with the support beam 103 by fastening bolts.
In the application, two ends of the stabilizing beam 104 are respectively welded with the two supporting beams 103, so that the stabilizing beam 104 and the two supporting beams 103 on the same side form a type structure, and the lower ends of the type structure are respectively connected to the upper surfaces of the two cross beams 101; the two ends of the stiffening beam 105 are respectively connected with the two supporting beams 103, so that the two supporting beams 103 on the same cross beam 101 and the stiffening beam 105 form a trapezoid structure, and the lower end of the trapezoid structure is connected with the upper surface of the same cross beam 101.
In the application, two ends of each cross beam 101 are respectively provided with a limiting piece 106, and the corresponding limiting pieces 106 on the two cross beams 101 are symmetrically arranged along the middle surfaces of the two cross beams 101; the limiting piece 106 is located on the upper surface of the cross beam 101 and located on the outer side of the longitudinal beam 102. Further, the limiting piece 106 is T-shaped. That is, the T-shaped limiting pieces 106 symmetrically arranged on the cross beam 101 are utilized to limit the lower end of the end face of the box girder, so that the sliding of the girder end steel mould 4 after leaning on the type structure is effectively avoided, and the safety of the girder end steel mould 4 after being placed is improved.
In this application, this high-speed railway simply supported double-line case roof beam end steel mould support frame still includes: the supporting top pick 3 is connected with the bottom surface of the cross beam 101; the number of the supporting top picks is 4, and two top picks are symmetrically arranged on each cross beam 101 along the length direction of the cross beam 101; the corresponding top picks on the two cross beams 101 are symmetrically arranged along the middle plane of the two cross beams 101. Further, the supporting top pick 3 includes: the hydraulic jack comprises a connecting top plate 301, a hydraulic jack 302 and a supporting bottom plate 303, wherein the connecting top plate 301 is fixedly connected with the upper end of the hydraulic jack 302, and the supporting bottom plate 303 is fixedly connected with the lower end of the hydraulic jack 302; wherein, be equipped with the bolt hole on connecting roof 301 to isomorphic fastener can dismantle with the bottom surface of crossbeam 101 and be connected. Therefore, the supporting frame body 1 is adjusted in the height direction through the 4 supporting top picks 3, and the adaptability of the supporting frame body 1 under different terrains can be effectively improved.
In addition, this high-speed railway simply supported double-line case roof beam end steel mould support frame still includes: the mobile platforms 2 are 4, and the 4 mobile platforms 2 are respectively matched with the 4 supporting top picks 3; the mobile platform 2 is connected to the underside of the cross-beam 101. Wherein the mobile platform 2 comprises: a connecting part 201, a damping spring 203, a walking mounting part 202 and walking wheels; the connecting part 201 comprises a connecting plate 211 and studs 212, and a plurality of studs 212 are arranged on the top surface of the connecting plate 211; a plurality of traveling wheels are symmetrically arranged at both sides of the traveling installation part 202; both ends of the damper spring 203 are respectively connected to the bottom surface of the connection plate 211 and the top surface of the travel mounting portion 202. Therefore, the movable platform 2 is matched with the supporting top pick 3, the support frame body 1 can be effectively transferred through the movable platform 2, the equipment utilization rate is improved, and the operation intensity of the support frame body 1 during transferring is reduced.
Further, the connection portion 201 further includes: the plurality of guide rods 213, wherein the plurality of guide rods 213 are positioned on the bottom surface of the connecting plate 211, and a plurality of guide holes are correspondingly formed in the walking installation part 202; the lower end of the guide rod 213 is connected with a limit nut after passing through the guide hole. The bottom surface of the connecting part 201 is provided with an installation groove 214, and a first installation boss 215 is coaxially arranged in the installation groove 214; a second mounting boss is arranged on the top surface of the walking mounting part 202; the two ends of the damping spring 203 are respectively sleeved in the first mounting boss 215 and the second mounting boss, and the top end of the damping spring 203 is positioned in the mounting groove 214.
In the transition process of the support frame body 1, the support top pick 3 is retracted, the support frame body 1 is lowered, the movable platform 2 is in contact with the ground, and then the transition is realized; when the support frame body 1 is transferred in place, the support top pick 3 is stretched out, the support frame body 1 is lifted, the mobile platform 2 is separated from the ground, and after the beam end steel mould 4 is placed on the support frame body 1, the pressure acts on the support top pick 3, so that the mobile platform 2 is prevented from bearing, and the service life of the mobile platform 2 is prolonged.
In the application, in the transition process, vibration and jolt during movement are reduced by using the damping spring 203, so that stability of the support frame body 1 during transition is ensured, and safety is improved; the arrangement of the plurality of guide rods 213, the first installation boss 215 and the second installation boss effectively ensure that the damping spring 203 stretches out and draws back along the up-down direction, reduce vibration and avoid the damping spring 203 bearing unbalanced load.
When the girder end steel mould 4 of the box girder is dismounted, the girder end steel mould 4 is hoisted and placed on the support frame body 1; two end dies of the 1-hole box girder are respectively stored at two sides of the oppositely arranged supporting girder 103, namely, girder end steel dies 4 are arranged on two -type structures in a leaning way, so that occupied construction sites are effectively reduced, the structure is neat and messy, operators can conveniently manage, repair and polish the steel dies, spray isolating agents and install anchor backing plates, and meanwhile, the gantry crane can conveniently and rapidly hoist the box girder end steel dies for assembly and disassembly operations; meanwhile, the trapezoidal structure is utilized to enable the pressure of the two side beam end steel dies 4 to the support frame body 1 to cancel each other, so that the strength of the support frame body 1 is improved, and the support frame body 1 is prevented from deforming.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a high-speed railway simply supported double line case roof beam end steel mould support frame which characterized in that includes: the support frame body is of a frame structure; the support frame body includes: the beam comprises a cross beam, a longitudinal beam, a supporting beam, a stiffening beam and a stabilizing beam;
the two longitudinal beams are arranged between the two cross beams in parallel, and two ends of each longitudinal beam are respectively connected with the two cross beams;
the four supporting beams are respectively positioned at the joints of the longitudinal beams and the cross beams, and the lower ends of the supporting beams are connected to the cross beams; the included angle between the supporting beam and the cross beam is an acute angle; two supporting beams on the same beam are symmetrically arranged on the beam;
the two stiffening beams are arranged, and two ends of each stiffening beam are respectively connected with the upper ends of the two supporting beams on the same cross beam;
the number of the stabilizing beams is two, and two ends of each stabilizing beam are respectively connected with the upper ends of the two supporting beams opposite to each other on the two cross beams.
2. The support frame for a girder end steel mould of a simply supported double-line box girder of a high-speed railway according to claim 1, wherein the cross girder and the longitudinal girder are fixedly connected; the lower end of the supporting beam is detachably connected with the cross beam; two ends of the reinforcing beam are detachably connected with the supporting beam; and two ends of the stabilizing beam are fixedly connected with the supporting beam.
3. The support frame for the girder end steel mould of the simply supported double-line box girder of the high-speed railway according to claim 1, wherein the two ends of the cross girders are respectively provided with a limiting piece, and the corresponding limiting pieces on the two cross girders are symmetrically arranged along the middle surfaces of the two cross girders; the limiting piece is located on the upper surface of the cross beam and located on the outer side of the longitudinal beam.
4. The support frame for the girder end steel mould of the simply supported double-line girder of the high-speed railway according to claim 3, wherein the limiting piece is T-shaped.
5. The high-speed railway simply supported double-line box girder end steel mould supporting frame according to any one of claims 1 to 4, further comprising: the supporting top pick is connected with the bottom surface of the cross beam; the number of the supporting top picks is 4, and two top picks are symmetrically arranged on each cross beam along the length direction of the cross beam; the corresponding top picks on the two cross beams are symmetrically arranged along the middle surfaces of the two cross beams.
6. The high-speed railway simply supported double-line box girder end steel mould supporting frame according to claim 5, wherein the supporting top pick comprises: the hydraulic jack is characterized by comprising a connecting top plate, a hydraulic jack and a supporting bottom plate, wherein the connecting top plate is fixedly connected with the upper end of the hydraulic jack; the connecting top plate is provided with bolt holes so that isomorphic fasteners can be detachably connected with the bottom surface of the cross beam.
7. The high-speed railway simply supported double-line box girder end steel mould supporting frame according to claim 5, further comprising: the mobile platforms are 4, and the 4 mobile platforms are respectively matched with the 4 supporting top picks; the movable platform is connected to the bottom surface of the cross beam.
8. The high-speed railway simply supported double-line box girder end steel mould supporting frame according to claim 7, wherein the mobile platform comprises: the device comprises a connecting part, a damping spring, a walking installation part and walking wheels; the connection part includes: the top surface of the connecting plate is provided with a plurality of studs; a plurality of travelling wheels are symmetrically arranged on two sides of the travelling installation part; and two ends of the damping spring are respectively connected with the bottom surface of the connecting plate and the top surface of the walking installation part.
9. The high-speed railway simply supported double-line box girder end steel mould supporting frame according to claim 8, wherein the connecting part further comprises: the guide rods are arranged, the guide rods are positioned on the bottom surface of the connecting plate, and the walking installation part is correspondingly provided with a plurality of guide holes; the lower end of the guide rod passes through the guide hole and is connected with a limit nut.
10. The support frame for the girder end steel mould of the simply supported double-line girder of the high-speed railway according to claim 8, wherein the bottom surface of the connecting plate is provided with a mounting groove, and a first mounting boss is coaxially arranged in the mounting groove; a second installation boss is arranged on the top surface of the walking installation part; the damping spring both ends suit respectively in first installation boss in the second installation boss, just damping spring's top is located in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223126314.5U CN218969780U (en) | 2022-11-24 | 2022-11-24 | Support frame for girder end steel mould of simply supported double-line box girder of high-speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223126314.5U CN218969780U (en) | 2022-11-24 | 2022-11-24 | Support frame for girder end steel mould of simply supported double-line box girder of high-speed railway |
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| Publication Number | Publication Date |
|---|---|
| CN218969780U true CN218969780U (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223126314.5U Active CN218969780U (en) | 2022-11-24 | 2022-11-24 | Support frame for girder end steel mould of simply supported double-line box girder of high-speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218969780U (en) |
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- 2022-11-24 CN CN202223126314.5U patent/CN218969780U/en active Active
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