CN218374426U - Connecting node of L shaped steel concrete-filled steel tube bundle shear wall corner and girder steel - Google Patents
Connecting node of L shaped steel concrete-filled steel tube bundle shear wall corner and girder steel Download PDFInfo
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- CN218374426U CN218374426U CN202222230172.0U CN202222230172U CN218374426U CN 218374426 U CN218374426 U CN 218374426U CN 202222230172 U CN202222230172 U CN 202222230172U CN 218374426 U CN218374426 U CN 218374426U
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Abstract
The utility model discloses a connected node of L shaped steel pipe concrete beam shear force wall corner and girder steel, include: the L-shaped steel tube bundle combined component comprises a first plate-shaped structure, a second plate-shaped structure and a corner steel tube unit, wherein the corner steel tube unit is a square steel tube, and two adjacent tube walls of the corner steel tube unit are respectively welded and connected with the first plate-shaped structure and the second plate-shaped structure to form an L-shaped structure; the steel beam connecting assembly comprises a first steel plate, a second steel plate, a third steel plate and a fourth steel plate; the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are sequentially welded to form a square sleeve, and the square sleeve is sleeved on the periphery of the corner steel pipe unit and is welded with the corner steel pipe unit; the utility model discloses realize guaranteeing under the prerequisite that the atress is reasonable, structure safety, improve the steel-pipe bundle tensile strength of L shaped steel concrete-filled steel tube bundle shear force wall corner department, satisfy X to, Y to the equal rigid connection's of girder steel and L shaped steel concrete-filled steel tube bundle shear force wall corner engineering needs.
Description
Technical Field
The utility model relates to a connected node of L shaped steel pipe concrete beam shear force wall corner and girder steel belongs to structural design and prefabricated assembly technical field.
Background
The steel tube bundle is a structural unit with a cavity formed by splicing a plurality of U-shaped steel or rectangular steel tubes and steel plates, and the steel tube bundle and the filled concrete are combined to form a steel tube concrete bundle shear wall; the steel tube concrete beam shear wall is adopted to replace the traditional concrete shear wall, the steel tube concrete beam shear wall, the steel column and the steel beam jointly act to form a novel structural system, the structural system has all the advantages of steel structure projects, and meets the requirements of assembly and standardization, and the application of the structural system is increasingly wide along with the popularization and development of steel structures in the fields of houses, public buildings and the like; according to the structural arrangement, when connecting the steel beams in the X direction and the Y direction at the corner of the L-shaped concrete-filled steel tube bundle shear wall, the steel beams in the two directions are generally required to be rigidly connected with the corner of the L-shaped concrete-filled steel tube bundle shear wall, as shown in FIG. 4; at present, the structural system has no node structure in which steel beams in two reasonable directions are all in rigid connection with the wall corners of the L-shaped concrete-filled steel tube beam shear wall, the tensile strength of the steel tube beam at the wall corners of the L-shaped concrete-filled steel tube beam shear wall is not high, and the popularization and the application of the structural system of the concrete-filled steel tube beam shear wall are hindered.
Disclosure of Invention
The utility model aims at providing a connected node of L shaped steel tubular concrete bundle shear force wall corner and girder steel, guaranteeing under the prerequisite that the atress is reasonable, structure safety, improve the steel-pipe bundle tensile strength of L shaped steel tubular concrete bundle shear force wall corner department, satisfy X to, Y to the equal rigid connection's of girder steel and L shaped steel tubular concrete bundle shear force wall corner engineering needs.
In order to realize the above object, the utility model adopts the following technical scheme:
the utility model provides a connected node of L shaped steel pipe concrete beam shear force wall corner and girder steel, includes:
the L-shaped steel tube bundle combined component comprises a first plate-shaped structure, a second plate-shaped structure and a corner steel tube unit, wherein the plate-shaped structure is formed by sequentially welding a plurality of steel tubes in parallel, and the steel tubes and the corner steel tube unit are provided with pouring cavities for pouring concrete; the wall corner steel tube units are square steel tubes, and two adjacent tube walls of the wall corner steel tube units are respectively welded and connected with the first plate-shaped structure and the second plate-shaped structure to form an L-shaped structure;
the steel beam connecting assembly comprises a first steel plate, a second steel plate, a third steel plate and a fourth steel plate; the steel plate I, the steel plate II, the steel plate III and the steel plate IV are sequentially welded and connected to form a square sleeve, and the square sleeve is sleeved on the periphery of the corner steel pipe unit and is welded and connected with the corner steel pipe unit; the first steel plate and the second steel plate are respectively used for connecting the first steel beam and the second steel beam, the third steel plate is positioned between the first platy structure and the corner steel pipe unit, a notch for accommodating the third steel plate is formed in the side face, facing the corner steel pipe unit, of the first platy structure, and the notch of the first platy structure is welded with the third steel plate; the fourth steel plate is located between the second plate-shaped structure and the corner steel pipe unit, a notch used for containing the fourth steel plate is formed in the side face, facing the corner steel pipe unit, of the second plate-shaped structure, and the notch of the second plate-shaped structure is welded with the fourth steel plate.
As a further preference of the utility model, the widths of the first steel plate, the second steel plate and the third steel plate are greater than the width of the corner steel pipe unit, the fourth steel plate is positioned between the second steel plate and the third steel plate, a first clamping groove is formed between the second steel plate and the third steel plate on the outer side of the fourth steel plate, and the side edge of the second plate-shaped structure connected with the corner steel pipe unit is positioned in the first clamping groove; the first steel plate is simultaneously welded with the corner steel pipe unit and the first plate-shaped structure, the second steel plate is simultaneously welded with the corner steel pipe unit and the second plate-shaped structure, and the third steel plate is simultaneously welded with the corner steel pipe unit and the second plate-shaped structure.
In order to increase girder steel coupling assembling's structural strength, steel sheet three is provided with two, and two steel sheet three interval settings in vertical direction, steel sheet four corresponds the cooperation with steel sheet three and is provided with two.
In order to further increase the structural strength of the steel beam connecting assembly, a steel plate five is welded and connected to the outer side face of the steel plate three, the steel plate five is parallel to the steel plate one, a clamping groove two is formed between the steel plate five and the steel plate one on the outer side face of the steel plate three, and the side edge of the first plate-shaped structure connected with the corner steel pipe unit is located in the clamping groove two; and the steel plate five is simultaneously welded and connected with the first plate-shaped structure.
As a further preference of the utility model, a plurality of plug welding holes are formed on the second steel plate, the second steel plate is welded with the corner steel tube unit through the plurality of plug welding holes, and the top edge and the bottom edge of the second steel plate are respectively welded with the corner steel tube unit; the second steel plate is welded through the plug welding hole, so that the second steel plate can be effectively combined with the corner steel pipe unit, and the internal force transmission of the corner steel pipe unit is guaranteed.
As a further preference of the utility model, the plurality of plug welding holes are arranged in two rows at intervals along the length direction of the steel plate; the accumulation phenomenon of the plug welding hole is avoided.
As a further preference of the utility model, the thickness of steel sheet one and steel sheet two is the same, and the thickness of steel sheet three and steel sheet four is the same, and the thickness of steel sheet one and steel sheet two is greater than the thickness of steel sheet three and steel sheet four.
As a further preference of the utility model, the outer side surfaces of the first steel plate and the second steel plate are respectively provided with a web connecting plate for connecting with a web bolt of a steel beam; the first steel plate and the second steel plate are respectively and quickly connected with the first steel beam and the second steel beam to form a force transmission structure.
As a further preference of the utility model, the outer side surfaces of the first steel plate and the second steel plate are respectively provided with two web connecting plates which are parallel to each other, a gap is formed between the two web connecting plates, and the web of the steel beam is inserted into the gap between the two web connecting plates and then is connected with the two web connecting plates through bolts; the connection strength between the web plate of the steel beam and the web plate connecting plate is improved, the connection strength between the first steel plate and the second steel plate and the connection strength between the first steel plate and the second steel beam are improved, and the stability of a force transmission structure is guaranteed.
The utility model discloses an useful part lies in:
rigid connection between the steel beams in the two directions and the wall corner of the L-shaped steel tube concrete beam shear wall is realized, and the rigid connection stress effect is achieved; when the end of the steel beam bears a large bending moment, the steel beam is effectively pulled and connected through the first steel plate and the second steel plate; the steel tube bundle tensile strength at the wall corner of the L-shaped steel tube concrete bundle shear wall is improved on the premise of ensuring reasonable stress and safe structure, and the engineering requirements of rigid connection of the X-direction steel beam, the Y-direction steel beam and the wall corner of the L-shaped steel tube concrete bundle shear wall are met.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic sectional view taken along line A in FIG. 1;
FIG. 3 is a schematic sectional view of the structure of FIG. 1 along the line B;
FIG. 4 is a schematic structural view of a prior art L-shaped steel pipe concrete beam shear wall corner connected with X-direction and Y-direction steel beams;
the meaning of the reference symbols in the figures:
1-steel plate I, 2-steel plate II, 3-steel plate III, 4-steel plate IV, 5-steel plate V, 6-plug welding hole, 7-web connecting plate, 11-first plate-shaped structure, 12-second plate-shaped structure, 13-corner steel pipe unit, 21-steel beam I, 22-steel beam II.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the present embodiment is a connection node between a corner and a steel beam of an L-shaped steel tube concrete beam shear wall, including:
the L-shaped steel tube bundle combined component comprises a first plate-shaped structure 11, a second plate-shaped structure 12 and a corner steel tube unit 13, wherein the plate-shaped structure is formed by welding a plurality of steel tubes in parallel in sequence, and the steel tubes and the corner steel tube unit 13 are provided with pouring cavities for pouring concrete; the corner steel tube unit 13 is a square steel tube, and two adjacent tube walls of the corner steel tube unit 13 are respectively welded and connected with the first plate-shaped structure 11 and the second plate-shaped structure 12 to form an L-shaped structure; the steel pipes in the plate-shaped structure are U-shaped pipes, the directions of gaps of the U-shaped pipes in the same plate-shaped structure are consistent, and a middle cavity of each U-shaped pipe is used as a pouring cavity for pouring concrete;
the steel beam connecting assembly comprises a first steel plate 1, a second steel plate 2, a third steel plate 3 and a fourth steel plate 4; the steel plate I1, the steel plate II 2, the steel plate III 3 and the steel plate IV 4 are sequentially welded to form a square sleeve, and the square sleeve is sleeved on the periphery of the corner steel pipe unit 13 and is welded to the corner steel pipe unit 13; the first steel plate 1 and the second steel plate 2 are respectively used for connecting the first steel beam 21 and the second steel beam 22, the third steel plate 3 is located between the first plate-shaped structure 11 and the corner steel pipe unit 13, a groove for accommodating the third steel plate 3 is formed in the side face, facing the corner steel pipe unit 13, of the first plate-shaped structure 11, and the groove of the first plate-shaped structure 11 is welded with the third steel plate 3; the steel plate four 4 is positioned between the second plate-shaped structure 12 and the corner steel tube unit 13, a slot for accommodating the steel plate four 4 is formed in the side surface, facing the corner steel tube unit 13, of the second plate-shaped structure 12, and the slot of the second plate-shaped structure 12 is welded with the steel plate four 4.
In this embodiment, the widths of the first steel plate 1, the second steel plate 2 and the third steel plate 3 are greater than the width of the corner steel pipe unit 13, the fourth steel plate 4 is located between the second steel plate 2 and the third steel plate 3, a first clamping groove is formed between the second steel plate 2 and the third steel plate 3 on the outer side surface of the fourth steel plate 4, and the side edge of the second plate-shaped structure 12 connected with the corner steel pipe unit 13 is located in the first clamping groove; the first steel plate 1 is simultaneously welded with the corner steel pipe unit 13 and the first plate-shaped structure 11, the second steel plate 2 is simultaneously welded with the corner steel pipe unit 13 and the second plate-shaped structure 12, and the third steel plate 3 is simultaneously welded with the corner steel pipe unit 13 and the second plate-shaped structure 12; in order to increase the structural strength of the steel beam connecting assembly, two steel plates three 3 are arranged at intervals in the vertical direction, and two steel plates four 4 are correspondingly matched with the steel plates three 3; in order to further increase the structural strength of the steel beam connecting assembly, a steel plate five 5 is welded and connected to the outer side face of the steel plate three 3, the steel plate five 5 is parallel to the steel plate one 1, a clamping groove two is formed between the steel plate five 5 on the outer side face of the steel plate three 3 and the steel plate one 1, and the side edge of the first plate-shaped structure 11 connected with the corner steel pipe unit 13 is positioned in the clamping groove two; the steel plate five 5 is simultaneously welded to the first plate-like structure 11.
In the embodiment, a plurality of plug welding holes 6 are formed in a second steel plate 2, the second steel plate 2 is in welded connection with the corner steel pipe unit 13 through the plurality of plug welding holes 6, and the top edge and the bottom edge of the second steel plate 2 are respectively in welded connection with the corner steel pipe unit 13; the second steel plate 2 is welded through the plug welding hole 6, so that the second steel plate 2 can be effectively combined with the corner steel pipe unit 13, and the internal force transmission of the corner steel pipe unit 13 is ensured; the plug welding holes 6 are arranged in two rows at intervals along the length direction of the second steel plate 2; the phenomenon of accumulation of the plug welding holes 6 is avoided.
In the embodiment, the thicknesses of the first steel plate 1 and the second steel plate 2 are the same, the thicknesses of the third steel plate 3 and the fourth steel plate 4 are the same, and the thicknesses of the first steel plate 1 and the second steel plate 2 are greater than the thicknesses of the third steel plate 3 and the fourth steel plate 4; web connecting plates 7 used for being connected with web bolts of the steel beam are respectively arranged on the outer side surfaces of the first steel plate 1 and the second steel plate 2; the steel plate I1 and the steel plate II 2 are respectively and quickly connected with the steel beam I21 and the steel beam II 22 to form a force transmission structure; in the embodiment, two web connecting plates 7 are respectively arranged on the outer side surfaces of a first steel plate 1 and a second steel plate 2, the two web connecting plates 7 are parallel to each other, a gap is formed between the two web connecting plates 7, and a web of a steel beam is inserted into the gap between the two web connecting plates 7 and then is in bolt connection with the two web connecting plates 7; the connection strength between the web plate of the steel beam and the web plate connecting plate 7 is improved, the connection strength between the first steel plate 1 and the second steel plate 2 and the first steel beam 21 and the second steel beam 22 is further improved, and the stability of a force transmission structure is guaranteed.
The installation sequence of the embodiment during construction is as follows:
(1) After being welded, a first steel plate 1, a second steel plate 2 and a third steel plate 3 in the steel beam connecting assembly are welded and connected with a corner steel pipe unit 13;
(2) Welding and connecting a steel plate four 4 in the steel beam connecting assembly with a steel plate two 2, a steel plate three 3 and a corner steel pipe unit 13; at the moment, a first steel plate 1, a second steel plate 2, a third steel plate 3 and a fourth steel plate 4 in the steel beam connecting assembly are welded to form a square sleeve and are sleeved on the periphery of the corner steel pipe unit 13 to be welded with the corner steel pipe unit 13; as shown in fig. 1, the first steel plate 1 is located on the right side of the corner steel pipe unit 13, the second steel plate 2 is located on the rear side of the corner steel pipe unit 13, the third steel plate 3 is located on the front side of the corner steel pipe unit 13, and the fourth steel plate 4 is located on the left side of the corner steel pipe unit 13;
(3) The side surface of the first plate-shaped structure 11 facing the corner steel pipe unit 13 is provided with a notch for accommodating a third steel plate 3, the side surface of the second plate-shaped structure 12 facing the corner steel pipe unit 13 is provided with a notch for accommodating a fourth steel plate 4, and then the first plate-shaped structure 11 and the second plate-shaped structure 12 are respectively welded and connected with the corner steel pipe unit 13 to form an L-shaped structure; the slotting part of the first plate-shaped structure 11 is welded with the third steel plate 3, and the slotting part of the second plate-shaped structure 12 is welded with the fourth steel plate 4; in practical application, a steel pipe (shown as C in fig. 1) adjacent to the corner steel pipe unit 13 in the first plate-like structure 11 may be welded first, and then other steel pipes for forming the first plate-like structure 11 are welded in sequence at a later stage, and a slot for accommodating the steel plate three 3 is formed in the steel pipe adjacent to the corner steel pipe unit 13 in the first plate-like structure 11; similarly, the steel pipes (as shown in fig. 1D) adjacent to the corner steel pipe units 13 in the second plate-like structure 12 may be welded first, and then the other steel pipes for forming the second plate-like structure 12 are welded in sequence at a later stage, and the steel pipes adjacent to the corner steel pipe units 13 in the second plate-like structure 12 are provided with slots for accommodating the steel plates four 4;
(4) Welding and connecting the steel plate five 5, the steel plate three 3 and the first plate-shaped structure 11; the first steel plate 1 is connected with the first plate-shaped structure 11 in a welding mode, the second steel plate 2 is connected with the second plate-shaped structure 12 in a welding mode, and the third steel plate 3 is connected with the second plate-shaped structure 12 in a welding mode;
(5) Concrete is poured in the steel tube pouring cavities of the first plate-shaped structure 11 and the second plate-shaped structure 12, meanwhile, concrete is poured in the pouring cavities of the corner steel tube units 13, the concrete is poured to form the L-shaped steel tube concrete beam shear wall, and at the moment, the steel beam connecting assembly and the L-shaped steel tube concrete beam shear wall are rigidly connected and fused into a whole;
(6) Finally, the first steel beam 21 and the second steel beam 22 are respectively in bolted connection with the web connecting plates 7 on the outer side surfaces of the first steel plate 1 and the second steel plate 2; at the moment, the first steel beam 21 is equivalent to an X-direction steel beam, and the second steel beam 22 is equivalent to a Y-direction steel beam, so that the steel beams in two directions are rigidly connected with the wall corner of the L-shaped concrete-filled steel tube beam shear wall, and the rigid connection stress effect is achieved; when the end of the steel beam bears a large bending moment, the steel beam is effectively pulled and connected through the first steel plate 1 and the second steel plate 2; the steel tube bundle tensile strength at the wall corner of the L-shaped steel tube concrete bundle shear wall is improved on the premise of ensuring reasonable stress and safe structure, and the engineering requirements of rigid connection of the X-direction steel beam, the Y-direction steel beam and the wall corner of the L-shaped steel tube concrete bundle shear wall are met.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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 therefore, should not be construed as limiting the present invention; furthermore, the terms "first" and "second" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; the specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The foregoing shows and describes the general principles, features and advantages of the present invention; it should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a connected node of L shaped steel concrete filled steel tube bundle shear force wall corner and girder steel which characterized in that includes:
the L-shaped steel tube bundle combined component comprises a first plate-shaped structure, a second plate-shaped structure and a corner steel tube unit, wherein the plate-shaped structure is formed by sequentially welding a plurality of steel tubes in parallel, and the steel tubes and the corner steel tube unit are provided with pouring cavities for pouring concrete; the wall corner steel pipe units are square steel pipes, and two adjacent pipe walls of the wall corner steel pipe units are respectively welded and connected with the first plate-shaped structure and the second plate-shaped structure to form an L-shaped structure;
the steel beam connecting assembly comprises a first steel plate, a second steel plate, a third steel plate and a fourth steel plate; the steel plate I, the steel plate II, the steel plate III and the steel plate IV are sequentially welded and connected to form a square sleeve, and the square sleeve is sleeved on the periphery of the corner steel pipe unit and is welded and connected with the corner steel pipe unit; the first steel plate and the second steel plate are respectively used for connecting the first steel beam and the second steel beam, the third steel plate is positioned between the first plate-shaped structure and the corner steel pipe unit, a slot for accommodating the third steel plate is formed in the side surface, facing the corner steel pipe unit, of the first plate-shaped structure, and the slot of the first plate-shaped structure is welded with the third steel plate; the fourth steel plate is located between the second plate-shaped structure and the corner steel pipe unit, a notch used for containing the fourth steel plate is formed in the side face, facing the corner steel pipe unit, of the second plate-shaped structure, and the notch of the second plate-shaped structure is welded with the fourth steel plate.
2. The connection node of the wall corner and the steel beam of the L-shaped steel tube concrete beam shear wall according to claim 1, characterized in that the widths of the first steel plate, the second steel plate and the third steel plate are larger than the width of the wall corner steel tube unit, the fourth steel plate is positioned between the second steel plate and the third steel plate, a first clamping groove is formed between the second steel plate and the third steel plate on the four outer side surfaces of the steel plates, and the side edge of the second plate-shaped structure connected with the wall corner steel tube unit is positioned in the first clamping groove; the first steel plate is simultaneously welded with the corner steel pipe unit and the first plate-shaped structure, the second steel plate is simultaneously welded with the corner steel pipe unit and the second plate-shaped structure, and the third steel plate is simultaneously welded with the corner steel pipe unit and the second plate-shaped structure.
3. The connecting node of an L-shaped steel pipe concrete beam shear wall corner and steel beam as claimed in claim 2, wherein there are two third steel plates, two third steel plates are vertically spaced, and two fourth steel plates are correspondingly matched with the third steel plates.
4. The connection node of the wall corner and the steel beam of the L-shaped steel pipe concrete beam shear wall according to claim 2 or 3, characterized in that a steel plate five is welded and connected to the outer side surface of the steel plate three, the steel plate five is parallel to the steel plate I, a clamping groove II is formed between the steel plate five and the steel plate I on the outer side surface of the steel plate three, and the side edge of the first plate-shaped structure connected with the wall corner steel pipe unit is positioned in the clamping groove II; and the steel plate five is simultaneously welded and connected with the first plate-shaped structure.
5. The connection node of the L-shaped steel tube concrete beam shear wall corner and the steel beam as claimed in claim 1 or 2, wherein a plurality of plug welding holes are formed in the second steel plate, the second steel plate is connected with the corner steel tube unit through the plurality of plug welding holes in a welding mode, and the top edge and the bottom edge of the second steel plate are respectively connected with the corner steel tube unit in a welding mode.
6. The connecting node of an L-shaped steel pipe concrete beam shear wall corner and steel beam according to claim 5, wherein the plug welding holes are arranged in two rows at intervals along the length direction of the steel plate.
7. The connection node of the wall corner and the steel beam of the L-shaped concrete-filled steel tube bundle shear wall according to claim 1, wherein the first steel plate and the second steel plate are the same in thickness, the third steel plate and the fourth steel plate are the same in thickness, and the first steel plate and the second steel plate are thicker than the third steel plate and the fourth steel plate.
8. The connection node of an L-shaped steel pipe concrete beam shear wall corner and steel beam according to any one of claims 1, 2 and 7, characterized in that the outer side surfaces of the first steel plate and the second steel plate are respectively provided with a web connecting plate for being in bolted connection with the web of the steel beam.
9. The connection node of an L-shaped concrete filled steel tube bundle shear wall corner and a steel beam as claimed in claim 8, wherein two web connection plates are respectively arranged on the outer side surfaces of the first steel plate and the second steel plate, the two web connection plates are parallel to each other, a gap is formed between the two web connection plates, and the web of the steel beam is inserted into the gap between the two web connection plates and then is connected with the two web connection plates through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222230172.0U CN218374426U (en) | 2022-08-24 | 2022-08-24 | Connecting node of L shaped steel concrete-filled steel tube bundle shear wall corner and girder steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222230172.0U CN218374426U (en) | 2022-08-24 | 2022-08-24 | Connecting node of L shaped steel concrete-filled steel tube bundle shear wall corner and girder steel |
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| Publication Number | Publication Date |
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| CN218374426U true CN218374426U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222230172.0U Active CN218374426U (en) | 2022-08-24 | 2022-08-24 | Connecting node of L shaped steel concrete-filled steel tube bundle shear wall corner and girder steel |
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| CN (1) | CN218374426U (en) |
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2022
- 2022-08-24 CN CN202222230172.0U patent/CN218374426U/en active Active
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