CN216475514U - Force transmission truss structure for existing column - Google Patents
Force transmission truss structure for existing column Download PDFInfo
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- CN216475514U CN216475514U CN202122899470.4U CN202122899470U CN216475514U CN 216475514 U CN216475514 U CN 216475514U CN 202122899470 U CN202122899470 U CN 202122899470U CN 216475514 U CN216475514 U CN 216475514U
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Abstract
The utility model discloses a truss structure for transferring force to an existing column, which comprises four vertical existing structure steel columns, edge connecting units and the like, wherein each edge connecting unit comprises a first unit and a second unit, the first unit is hinged with the second unit, two ends of each edge connecting unit are connected with the vertical existing structure steel columns through a first bracket and a second bracket, the edge connecting units are semi-rigidly connected with the first brackets and the second brackets, and a pair of parallel fourth units are arranged between the first units; the pair of edge connecting units, the third unit and the second longitudinal connecting steel beam form a parallelogram in an enclosing mode; the utility model changes the transmission path of mechanics by using the existing steel structure, and applies the support reaction of the tower crane on the vertical stress column of the original structure, thereby solving the problems of insufficient bearing capacity of a top plate and arrangement of the tower crane foundation. The main supporting parts are prefabricated in factories, and only assembly is needed on site, so that the mounting precision requirement is met, and the construction efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of truss structures, in particular to a truss structure capable of transferring force to an existing column.
Background
At present, tower cranes are widely used in the construction field. The stability and the safety of the object lifted by the tower crane are directly related to the arrangement of the tower crane foundation. The erection of the tower crane foundation structure is the most important ring.
The existing tower crane foundation structure comprises a natural foundation, an end-bearing pile foundation, a friction pile foundation, a concrete foundation and the like; however, when the above-mentioned foundation is constructed, if the volume of the concrete block poured by concrete is generally large, the procedures of binding steel bars, supporting templates, pouring concrete and the like are required during construction, and the tower crane foundation not only needs to be constantly paid attention to the measurement of levelness during installation, but also needs to be additionally demolished by blasting after the tower crane is demolished, and the demolition by blasting is not beneficial to environmental protection; if steel structure tower crane foundation structure, required steel construction quantity is very big, and weight is big, is unfavorable for the installation. The method has the advantages of high installation height, heavy weight, frequent use and high safety control and management requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a truss structure for transferring force to an existing column, and solves the technical problems that how to transfer the load force of a tower crane foundation to the existing structural steel column (vertical existing structural steel column) by changing a force transfer way, the use of steel is reduced by transferring force to the integral vertical stress structure of a building through the vertical existing structural steel column, the truss structure is set into an asymmetric structure, and a structural unit for supporting a tower crane is installed at a proper position of a truss according to the stress requirement; how to reduce the tower crane foundation structure and use the concrete, avoid the tower crane demolish the back, the blasting of tower crane foundation structure is demolishd, reduces the pollution to the environment.
In order to achieve the purpose, the utility model provides a truss structure for transferring force to an existing column, which comprises four vertical existing structural steel columns, an edge connecting unit, a fourth unit, a third bracket, a third unit, a second oblique connecting steel beam and a second longitudinal connecting steel beam; the edge connecting unit comprises a first unit and a second unit, the first unit is hinged to the second unit, two ends of the edge connecting unit are connected with the vertical existing structural steel column through a first bracket and a second bracket, the edge connecting unit is semi-rigidly connected with the first bracket and the second bracket, a pair of parallel fourth units are arranged between the first units, one end of each fourth unit is connected with one first unit through a third bracket, and the other end of each fourth unit is connected with the other first unit.
The second bracket comprises a pair of vertical connecting plates, a transverse web plate, a pair of oblique clamping steel plates and an oblique web plate; a transverse web plate vertically connected with the pair of vertical connecting plates is arranged between the pair of vertical connecting plates, the transverse web plate is hinged with the first unit and the second unit, a pair of mutually parallel oblique clamping steel plates are vertically connected with the pair of vertical connecting plates, an oblique web plate is vertically connected between the oblique clamping steel plates, and the oblique web plate is hinged with the first unit and the second unit; and the pair of oblique clamping steel plates are vertically welded with one ends of the first unit and the second unit.
A pair of second oblique connecting steel beams which are parallel to each other are arranged between the pair of second units, and two ends of a pair of third units which are longitudinally arranged and parallel to each other are connected with the pair of vertical existing structural steel columns through connecting and fixing pieces; two ends of the pair of second longitudinal connecting steel beams are connected with the vertical existing structural steel column through second brackets; a parallelogram is enclosed by the pair of edge connecting units, the third unit and the second longitudinal connecting steel beam.
Further, the first unit comprises a pair of first transverse steel beams, a first vertical steel beam and a pair of first oblique steel beams; be provided with first vertical girder steel between a pair of first horizontal girder steel, first vertical girder steel both ends symmetric connection has a pair of first slant girder steel, sets up first horizontal girder steel and the semi-rigid connection of second bracket above first unit, sets up first horizontal girder steel and the first slant girder steel and the semi-rigid connection of first bracket that are close to vertical existing structure steel column in first unit below.
Further, the second unit comprises a second transverse steel beam, a second vertical steel beam, a second oblique steel beam and an oblique connecting piece; at least two second vertical steel beams are arranged between the pair of second transverse steel beams, a second oblique steel beam is arranged between the adjacent second vertical steel beams, a second oblique steel beam and an oblique connecting piece are arranged between the second vertical steel beam far away from the first unit and the vertical existing structural steel column, the second oblique steel beam is hinged with the oblique connecting piece, and the oblique connecting piece is semi-rigidly connected with the first bracket.
Furthermore, the third unit is arranged at one end close to the fourth unit, the fourth unit comprises a first longitudinal connecting steel beam and a pair of first oblique connecting steel beams, one ends of the first longitudinal steel beam and the pair of first oblique connecting steel beams are hinged with the third bracket, and the other ends of the first longitudinal steel beam and the pair of first oblique connecting steel beams are hinged with the first unit; the third unit comprises longitudinal support steel beams and oblique stiffening plates, and a plurality of oblique stiffening plates are arranged between the pair of second longitudinal support steel beams.
And the first unit and the second unit are reinforced at two sides through the connecting steel plates.
And the joint stiffening plates are arranged at the connecting nodes of the first unit and the second unit, the connecting nodes of the first transverse steel beam and the first vertical steel beam and the connecting nodes of the first transverse steel beam and the first oblique steel beam.
Further, still include the hoist and mount otic placode, the top of girder steel and the second longitudinal connection girder steel is connected in first unit, second unit, fourth unit, third unit, second slant all is provided with the hoist and mount otic placode.
The utility model has the advantages of being beneficial to the realization of the utility model.
According to the truss structure for transferring force to the existing column, the load force of the tower crane foundation is transferred to the existing structural steel column (vertical existing structural steel column) by changing the force transfer way, the force is transferred to the integral vertical stress structure of the building through the vertical existing structural steel column, the roof tower crane is safely set under the condition that the bearing capacity of a roof board or a floor board is insufficient and reinforcement measures cannot be set, the bearing capacity requirement is met, and the construction progress is guaranteed. The structure is safer and more stable; the tower crane foundation arranged between floors in old building reconstruction engineering is installed more quickly and conveniently, and the bearing capacity of the tower crane foundation can be met. The main supporting parts are prefabricated in factories, and only assembly is needed on site, so that the mounting precision requirement is met, the construction efficiency is improved, the working hours of welding and assembling procedures in a construction site are reduced, the development process of green construction is facilitated, and the construction cost is reduced.
2, flanges at two sides of a first bracket and a second bracket are welded with flanges at two sides of a first unit and a second unit to form a vertical welding line, so that the operation in a narrow space is more convenient compared with a transverse welding line and the like, webs of the first bracket and the second bracket are hinged with webs of the first unit and the second unit through connecting steel plates, so that the nodes form hinged nodes instead of rigid nodes, the steel column is ensured to be only stressed by horizontal downward force without generating bending moment, the strength of the joint with the steel column is increased, and the strength of the node is enhanced; horizontal girder steel and slant girder steel can be connected simultaneously to the second bracket, directly fixes first slant girder steel that first unit and second unit are close to mutually and the first horizontal girder steel that sets up in the below on the second bracket, second slant girder steel and the horizontal girder steel of second that sets up in the below, have reduced the use of bracket, make the fixed more stable of structure simultaneously.
According to the truss structure for transferring force to the existing column, the fourth unit and the second oblique connecting steel beam are asymmetrically arranged, the arrangement mode shortens the slenderness ratio of the first longitudinal connecting steel beam, the first oblique connecting steel beam and the second oblique connecting steel beam, and the stability of the structure is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model. The primary objects and other advantages of the utility model may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic view of the connection relationship between the vertical existing structural steel column and the first bracket and the second bracket according to the present invention.
Fig. 4 is a schematic view of the connection of the vertical existing structural steel columns to the connecting fixtures of the present invention.
Fig. 5 is a schematic structural view of the first unit in the present invention.
Fig. 6 is a schematic structural view of a second unit in the present invention.
FIG. 7 is a schematic view of the structure of a second corbel according to the present invention.
FIG. 8 is a schematic view of the structure of a third corbel according to the present invention.
Fig. 9 is a schematic structural view of a third unit in the present invention.
Reference numerals: 1-vertical existing structural steel column, 2-first bracket, 3-second bracket, 3.1-vertical connecting plate, 3.2-transverse web plate, 3.3-oblique clamping steel plate, 3.4-oblique web plate, 4-first unit, 4.1-first transverse steel beam, 4.2-first vertical steel beam, 4.3-first oblique steel beam, 5-second unit, 5.1-second transverse steel beam, 5.2-second vertical steel beam, 5.3-second oblique steel beam, 5.4-oblique connecting piece, 6-third unit, 6.1-longitudinal supporting steel beam, 6.2-oblique stiffening plate, 7-fourth unit, 7.1-first longitudinal connecting steel beam, 7.2-first connecting oblique steel beam, 8-third bracket, 8.1-transverse connecting plate, 8.2-first vertical web plate, 3.1-vertical connecting plate, 3.2-first transverse connecting plate, 5.3-second transverse steel beam, 5.3-oblique connecting plate, 6-third unit, 6-longitudinal supporting steel beam, 6.1-longitudinal supporting steel beam, 6.2-second longitudinal stiffening plate, 7-fourth unit, 7.1-first longitudinal connecting plate, and transverse connecting plate, 8.3-a second vertical web plate, 9-a connecting steel plate, 10-a second oblique connecting steel beam, 11-a second longitudinal connecting steel beam, 12-a node stiffening plate and 13-a connecting fixing piece.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and illustrating the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 1 to 9, the utility model provides a truss structure for transferring force to an existing column, and a tower crane foundation structure in the utility model is arranged above the 15 th floor of an old building; the steel column comprises four vertical existing structural steel columns 1, side connecting units, a fourth unit 7, a third bracket 8, a third unit 6, a second oblique connecting steel beam 10 and a second longitudinal connecting steel beam 11; the edge connecting unit comprises a first unit 4 and a second unit 5, the first unit 4 is hinged to the second unit 5, two ends of the edge connecting unit are connected with the vertical existing structural steel column 1 through a first bracket 2 and a second bracket 3, the edge connecting unit is semi-rigidly connected with the first bracket 2 and the second bracket 3, a pair of parallel fourth units 7 are arranged between the first units 4, one end of each fourth unit 7 is connected with one first unit 4 through a third bracket 8, and the other end of each fourth unit 7 is connected with the other first unit 4; the second bracket 3 comprises a pair of vertical connecting plates 3.1, a transverse web plate 3.2, a pair of oblique clamping steel plates 3.3 and an oblique web plate 3.4; a transverse web plate 3.2 vertically connected with the pair of vertical connecting plates 3.1 is arranged between the pair of vertical connecting plates 3.1, the transverse web plate 3.2 is hinged with a first unit 4 and a second unit 5, a pair of parallel oblique clamping steel plates 3.3 is vertically connected with the pair of vertical connecting plates 3.1, an oblique web plate 3.4 is vertically connected between the oblique clamping steel plates, and the oblique web plate 3.4 is hinged with the first unit 4 and the second unit 5; a pair of slant centre gripping steel sheet 3.3 and the vertical welding of one end of first unit 4 and second unit 5, vertical welding is more swift than horizontal welding.
2 risers of first bracket are trapezoidal, and it is unanimous with the flange board width with first unit 4 and 5 junction height of second unit, and with steel column junction increase height, strengthen node intensity.
A pair of second oblique connecting steel beams 10 which are parallel to each other are arranged between the pair of second units 5; two ends of a pair of third units 6 which are longitudinally arranged and parallel to each other are connected with a pair of vertical existing structural steel columns 1 through connecting and fixing pieces 13; two ends of a pair of second longitudinal connecting steel beams 11 are connected with the vertical existing structural steel column 1 through second brackets 3; a parallelogram is enclosed by the pair of edge connecting units, the third unit 6 and the second longitudinal connecting steel beam 11; the maximum vertical deformation value of the truss is 5.7mm, namely the vertical error.
The truss structure in the utility model adopts an asymmetric structure, so that the use of steel is reduced, and a structural unit for supporting a tower crane is arranged at a proper position of the truss according to the stress requirement; not only satisfied tower crane foundation structure's atress demand, reduced simultaneously and used the concrete on tower crane foundation structure, avoided the tower crane to demolish the back, tower crane foundation structure's blasting is demolishd, avoids causing the pollution to the environment, is favorable to advancing the progress of green construction.
In this embodiment, the first unit 4 includes a pair of first transverse steel beams 4.1, a first vertical steel beam 4.2, and a pair of first oblique steel beams 4.3; be provided with first vertical girder steel 4.2 between a pair of first horizontal girder steel 4.1, first vertical girder steel 4.2 both ends symmetric connection has a pair of first slant girder steel 4.3, sets up first horizontal girder steel 4.1 and the 3 semi-rigid connection of second bracket in first unit 4 top, sets up first horizontal girder steel 4.1 and the first slant girder steel 4.3 and the 2 semi-rigid connection of first bracket that are close to vertical existing structural steel post 1 in first unit 4 below.
In this embodiment, the second unit 5 includes a second transverse steel beam 5.1, a second vertical steel beam 5.2, a second oblique steel beam 5.3, and an oblique connecting member 5.4; at least two second vertical steel beams 5.2 are arranged between the pair of second transverse steel beams 5.1, a second oblique steel beam 5.3 is arranged between the adjacent second vertical steel beams 5.2, a second oblique steel beam 5.3 and an oblique connecting piece 5.4 are arranged between the second vertical steel beam 5.2 far away from the first unit 4 and the vertical existing structural steel column 1, the second oblique steel beam 5.3 is hinged with the oblique connecting piece 5.4, and the oblique connecting piece 5.4 is semi-rigidly connected with the first bracket 2.
The first transverse steel beam 4.1, the first vertical steel beam 4.2, the first oblique steel beam 4.3, the second transverse steel beam 5.1, the second vertical steel beam 5.2, the second oblique steel beam 5.3 and the oblique connecting piece 5.4 are all H-shaped steel beams.
The edges of two sides of the first bracket 2 and the second bracket 3 are welded with the edges of two sides of the first unit 4 and the second unit 5 to form a vertical welding line, the operation in a narrow space is more convenient for the transverse welding line and the like, the web plates of the first bracket 2 and the second bracket 3 are hinged with the web plates of the first unit 4 and the second unit 5 through a connecting steel plate 9, so that the node forms a hinged node instead of a rigid node, the steel column is guaranteed to be only stressed horizontally and downwards, the bending moment is not generated, the strength of the joint of the steel column is increased, and the strength of the node is enhanced.
In this embodiment, the third unit 6 is disposed at one end close to the fourth unit 7, the fourth unit 7 includes a first longitudinal connecting steel beam 7.1 and a pair of first oblique connecting steel beams 7.2, one end of each of the first longitudinal steel beam and the pair of first oblique connecting steel beams 7.2 is hinged to the third bracket 8, and the other end is hinged to the first unit 4; the third unit 6 comprises longitudinal support steel beams 6.1 and oblique stiffening plates 6.2, and a plurality of oblique stiffening plates 6.2 are arranged between the pair of second longitudinal support steel beams 6.1.
In this embodiment, the third bracket 8 comprises a pair of mutually parallel transverse connecting plates 8.1, a pair of first vertical webs 8.2 and a second vertical web 8.3; a pair of first vertical web 8.2 sets up in the vertical web 8.3 both sides of second to be connected with first vertical web 8.2 one end, be connected with a pair of first vertical web 8.2 and the vertical web 8.3 of second between a pair of transverse connection board 8.1 perpendicularly, second vertical web 8.3 is articulated with first longitudinal connection girder steel 7.1, and first vertical web 8.2 is articulated with first slant connection girder steel 7.2.
In this embodiment, the first unit 4 and the second unit 5 are reinforced at both sides by the connecting steel plates 9.
In this embodiment, the connection node of the first unit 4 and the second unit 5, the connection node of the first horizontal steel beam 4.1 and the first vertical steel beam 4.2, and the connection node of the first horizontal steel beam 4.1 and the first oblique steel beam 4.3 are all provided with a node stiffening plate 12. In the utility model, all web plates of the H-shaped steel beam related to the node position are provided with node stiffening plates 12.
In conclusion, the load and force of the tower crane foundation are transferred to the existing structural steel column (the vertical existing structural steel column 1) by changing the force transfer way, and the vertical existing structural steel column 1 is transferred to the integral vertical force bearing structure of the building, so that the roof tower crane can be safely set under the conditions that the bearing capacity of a roof panel or a floor panel is insufficient and reinforcement measures cannot be set, the bearing capacity requirement is met, and the construction progress is ensured. The structure is safer and more stable; the tower crane foundation arranged between floors in old building reconstruction engineering is installed more quickly and conveniently, and the bearing capacity of the tower crane foundation can be met. The main supporting parts are prefabricated in factories, and only assembly is needed on site, so that the mounting precision requirement is met, the construction efficiency is improved, and the development process of green construction is promoted.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model. The primary objects and other advantages of the utility model may be realized and attained by the instrumentalities particularly pointed out in the specification.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a pass power in truss structure of existing post which characterized in that: the steel column comprises four vertical existing structural steel columns (1), side connecting units, a fourth unit (7), a third bracket (8), a third unit (6), a second oblique connecting steel beam (10) and a second longitudinal connecting steel beam (11); the edge connecting unit comprises a first unit (4) and a second unit (5), the first unit (4) is hinged to the second unit (5), two ends of the edge connecting unit are connected with the vertical existing structural steel column (1) through a first bracket (2) and a second bracket (3), the edge connecting unit is semi-rigidly connected with the first bracket (2) and the second bracket (3), a pair of parallel fourth units (7) is arranged between the first units (4), one end of each fourth unit (7) is connected with one first unit (4) through a third bracket (8), and the other end of each fourth unit (7) is connected with the other first unit (4);
the second bracket (3) comprises a pair of vertical connecting plates (3.1), a transverse web plate (3.2), a pair of oblique clamping steel plates (3.3) and an oblique web plate (3.4); a transverse web plate (3.2) vertically connected with the pair of vertical connecting plates (3.1) is arranged between the pair of vertical connecting plates (3.1), the transverse web plate (3.2) is hinged with the first unit (4) and the second unit (5), a pair of parallel oblique clamping steel plates (3.3) is vertically connected with the pair of vertical connecting plates (3.1), an oblique web plate (3.4) is vertically connected between the oblique clamping steel plates, and the oblique web plate (3.4) is hinged with the first unit (4) and the second unit (5); a pair of oblique clamping steel plates (3.3) are vertically welded with one ends of the first unit (4) and the second unit (5);
a pair of second oblique connecting steel beams (10) which are parallel to each other are arranged between the pair of second units (5); two ends of a pair of third units (6) which are longitudinally arranged and are parallel to each other are connected with a pair of vertical existing structural steel columns (1) through connecting fixing pieces (13); two ends of the pair of second longitudinal connecting steel beams (11) are connected with the vertical existing structural steel column (1) through second brackets (3); a pair of side connecting units, a third unit (6) and a second longitudinal connecting steel beam (11) enclose a parallelogram.
2. A truss structure for transferring force to an existing column as defined in claim 1 wherein: the first unit (4) comprises a pair of first transverse steel beams (4.1), a first vertical steel beam (4.2) and a pair of first oblique steel beams (4.3); be provided with first vertical girder steel (4.2) between a pair of first horizontal girder steel (4.1), first vertical girder steel (4.2) both ends symmetric connection has a pair of first slant girder steel (4.3), sets up first horizontal girder steel (4.1) and the semi-rigid connection of second bracket (3) in first unit (4) top, sets up first horizontal girder steel (4.1) and the first slant girder steel (4.3) and the semi-rigid connection of first bracket (2) that are close to vertical existing structural steel post (1) in first unit (4) below.
3. A truss structure for transferring force to existing columns as defined in claim 2 wherein: the second unit (5) comprises a second transverse steel beam (5.1), a second vertical steel beam (5.2), a second oblique steel beam (5.3) and an oblique connecting piece (5.4); be provided with two at least vertical girder steels of second (5.2) between horizontal girder steel of a pair of second (5.1), be provided with second slant girder steel (5.3) between adjacent vertical girder steel of second (5.2), keep away from and be provided with second slant girder steel (5.3) and slant connecting piece (5.4) between vertical existing structure steel column (1) of second vertical girder steel (5.2) of first unit (4), second slant girder steel (5.3) are articulated with slant connecting piece (5.4), slant connecting piece (5.4) and first bracket (2) semi-rigid connection.
4. A truss structure for transferring force to existing columns as defined in claim 3 wherein: the third unit (6) is arranged at one end close to the fourth unit (7), the fourth unit (7) comprises a first longitudinal connecting steel beam (7.1) and a pair of first oblique connecting steel beams (7.2), one ends of the first longitudinal steel beam and the pair of first oblique connecting steel beams (7.2) are hinged to the third bracket (8), and the other ends of the first longitudinal steel beam and the pair of first oblique connecting steel beams are hinged to the first unit (4); the third unit (6) comprises longitudinal support steel beams (6.1) and oblique stiffening plates (6.2), and a plurality of oblique stiffening plates (6.2) are arranged between the pair of second longitudinal support steel beams (6.1).
5. A truss structure for transferring force to existing columns as defined in claim 4 wherein: the third bracket (8) comprises a pair of mutually parallel transverse connecting plates (8.1), a pair of first vertical webs (8.2) and a second vertical web (8.3); a pair of first vertical web (8.2) sets up in second vertical web (8.3) both sides to be connected with first vertical web (8.2) one end, be connected with a pair of first vertical web (8.2) and second vertical web (8.3) perpendicularly between a pair of transverse connection board (8.1), second vertical web (8.3) are articulated with first longitudinal connection girder steel (7.1), first vertical web (8.2) are connected girder steel (7.2) with first slant and are articulated.
6. A truss structure for transferring force to existing columns as defined in claim 5 wherein: the steel beam connection structure is characterized by further comprising node stiffening plates (12), wherein the node stiffening plates (12) are arranged at the connection nodes of the first unit (4) and the second unit (5), the connection nodes of the first transverse steel beam (4.1) and the first vertical steel beam (4.2) and the connection nodes of the first transverse steel beam (4.1) and the first oblique steel beam (4.3).
7. A truss structure for transferring force to existing columns as defined in claim 6 wherein: the device is characterized by further comprising a connecting steel plate (9), wherein the two sides of the first unit (4) and the second unit (5) are reinforced through the connecting steel plate (9).
8. A truss structure for transferring force to existing columns as defined in claim 7 wherein: the steel beam lifting device is characterized by further comprising lifting ear plates, wherein the lifting ear plates are arranged above the first unit (4), the second unit (5), the fourth unit (7), the third unit (6), the second oblique connecting steel beam (10) and the second longitudinal connecting steel beam (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899470.4U CN216475514U (en) | 2021-11-24 | 2021-11-24 | Force transmission truss structure for existing column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899470.4U CN216475514U (en) | 2021-11-24 | 2021-11-24 | Force transmission truss structure for existing column |
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| Publication Number | Publication Date |
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| CN216475514U true CN216475514U (en) | 2022-05-10 |
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| CN202122899470.4U Active CN216475514U (en) | 2021-11-24 | 2021-11-24 | Force transmission truss structure for existing column |
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| CN (1) | CN216475514U (en) |
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2021
- 2021-11-24 CN CN202122899470.4U patent/CN216475514U/en active Active
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