CN205935234U - Support bayonet beam column and support two curb plate nodes of U type - Google Patents
Support bayonet beam column and support two curb plate nodes of U type Download PDFInfo
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- CN205935234U CN205935234U CN201620468608.1U CN201620468608U CN205935234U CN 205935234 U CN205935234 U CN 205935234U CN 201620468608 U CN201620468608 U CN 201620468608U CN 205935234 U CN205935234 U CN 205935234U
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 230000002146 bilateral effect Effects 0.000 claims description 24
- 230000002787 reinforcement Effects 0.000 claims description 22
- 239000003351 stiffener Substances 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 4
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- 230000000452 restraining effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
The utility model discloses a support bayonet beam column and support two curb plate nodes of U type, including multicavity steel pipe -concrete composite post, and fix the two curb plate H steel beam in multicavity steel pipe -concrete composite post one side through two blocks of curb plates and lower apron level, follow two curb plate H steel beam's top and below are inclination and insert support side's pipe of presetting the reinforcing plate, and support side guan yushuan curb plate H steel beam, the multicavity steel pipe -concrete composite post of presetting the reinforcing plate constitute support bayonet beam column and support two curb plate nodes of U type. This node can improve its bearing capacity and power consumption ability and ductility as the edge restraining component of whole steel core concrete column, construction convenience, it is laborsaving to economize the material. Overall structure satisfies the design principle of " strong column and weak beam, the weak component of strong joint ", and the node possesses the multichannel line of providing fortification against earthquakes, avoids destroying because of some member broken lead to whole system, also possesses necessary intensity, good deformability and power consumption ability simultaneously.
Description
Technical field
This utility model is related to a kind of support plug-in type beam column and supports U-shaped bilateral plate node, is mainly used in building structure
In multilayer structure concrete filled steel tube coupled column.
Background technology
With economic globalization, the raising of the level of urbanization, urban population closeness is gradually increased so that high level is not in a large number
Break and emerge in large numbers.This just design in the urgent need to new technical support high level and tier building and construction.
Concrete filled steel tube utilizes the interaction in loading process of steel pipe and concrete bi-material, and that is, steel pipe is to coagulation
The effect of contraction of soil makes concrete be in complex stress condition, so that the intensity of concrete is improved, plasticity and toughness are big
For improving.Meanwhile, after steel duct fill concrete, due to the supporting role of concrete, can avoid or delay steel pipe walls
Flexing.The combination of bi-material compensate for respective shortcoming so that material property gives full play to.
With social development and growth in the living standard, people are to the usable floor area of house and cosmetic requirements increasingly
High.Traditional circle or Concrete Filled Square Steel Tubes post, generally can not be surrounded by body of wall completely, and suspension column is greatly prominent
House interior, takies certain interior space so that furnishings and room arrangement are subject to a definite limitation.Using square-section steel
Pipe concrete coupled column, can accomplish with wall with wide, solve the problems, such as that post projects corner angle.
Research shows, the concrete-filled rectangular steel tube coupled column of general type, and steel pipe is only limitted to the constraint of core concrete
Angle point, weaker in periphery, bearing capacity is relatively low.Newel post is that the multi-cavity steel tube concrete coupled column of rectangular steel pipe is arranged at edge
Confining part to improve its bearing capacity and energy dissipation capacity, put more energy into box construct, shaft is divided into some chambers, makes by horizontally set
Steel plate is strengthened to the effect of contraction of concrete, reduces the flakiness ratio of steel plate simultaneously, prevents or delay the local buckling of steel plate.
Utility model content
The purpose of this utility model is the band ribbed stiffener concrete filled steel tube coupled column providing a kind of construction simple, cheap
Support plug-in type beam column support U-shaped bilateral plate node, solves the problems, such as the indoor prominent corner angle of conventional post, raising Multicarity steel pipe
The bearing capacity of concrete combination column and ductility.Delay or avoid the stiffness of structural member bearing capacity leading to due to steel pipe wallboard local buckling
With the reduction of ductility, give full play to the performance of material.The design that overall structure meets " strong column and weak beam, the weak component of strong node " is former
Then, node possesses multiple tracks and provides fortification against earthquakes line, possesses necessary intensity, good deformability and energy dissipation capacity.
To achieve these goals, this utility model employs following technical scheme：
A kind of support plug-in type beam column supports U-shaped bilateral plate node, including multi-cavity steel tube concrete coupled column, and passes through two
Block side plate and lower cover are horizontally fixed on the dual-sided board H profile steel combination beam of multi-cavity steel tube concrete coupled column side, along described double
Above and below side plate H profile steel combination beam, inclined angle is inserted with the supporting square tube of default reinforcing plate, default reinforcing plate
Supporting square tube and dual-sided board H profile steel combination beam, multi-cavity steel tube concrete coupled column constitute support plug-in type beam column and support U-shaped bilateral
Plate node.
Further, described dual-sided board H profile steel combination bearing beam includes H profile steel, and between the section steel flange of H profile steel end
Two pieces of ribbed stiffeners of setting, are connected with, along the H profile steel web both sides inside ribbed stiffener, the connection flushing with H profile steel edge a pair
Part, is welded with upper cover plate outside lower flange in H profile steel.
Further, described connector is steel angle structure, bolt hole is distributed with the outer face of angle steel.
Further, the width of described upper cover plate is more than the width of lower flange in H profile steel.
Further, described ribbed stiffener is fixed on the web both sides of H profile steel.
Further, described side plate is the rectangular slab being provided with hypotenuse, and hypotenuse is located at two pieces of clamping multi-cavity steel tube concrete combinations
The top of the extension of post.
Further, described side plate is provided with the through hole corresponding with connector bolt hole.
Further, the supporting square tube of described default reinforcing plate includes supporting square tube, and is located at about supporting square tube end
The cover plate of side plate and upper and lower both sides is strengthened in the left and right of both sides, and left and right reinforcing plate cuts the rectangular slab at right angle for top side, cuts
One side of part hypotenuse and supporting square tube is fitted, and the diagonal base relatively cutting right angle portions is horizontally disposed with, will support side
Tube grip is the inclination angle with respect to 30 ° -60 ° of horizontally disposed base.
Further, the thickness more than supporting square tube for the width of side plate is strengthened in described left and right；The cover plate of described upper and lower both sides is slightly
Width more than supporting square tube.
This utility model support plug-in type beam column U-shaped bilateral plate node of support can be in the multi-cavity steel tube supporting plugging in fitting
Apply in concrete combination column support frame system.
This utility model can obtain following beneficial effect：
1) dual-sided board H profile steel combination beam is same with plug-in type combined support and multi-cavity steel tube concrete coupled column wide, it is to avoid room
Inner prop projects corner angle, it is possible to increase room usable floor area and aesthetic property.
2) dual-sided board H profile steel combination beam strengthens side plate and in default reinforcement cover plate above with presetting in supporting square tube both sides,
By reinforcing plate and plate-side plate welding, as the edge constraint component of whole steel core concrete column, its bearing capacity and power consumption energy can be improved
Power.
3) between dual-sided board, level welds cover plate, more overall insertion multi-cavity steel tube between lower cover and dual-sided board
Concrete combination column, dual-sided board H profile steel combination beam and the supporting square tube inserting default reinforcing plate between dual-sided board up and down, improve
The bearing capacity of component and ductility.This structure site operation is convenient, does not damage multi-cavity steel tube concrete coupled column, saves material laborsaving.
4) because using multi-cavity steel tube concrete coupled column, steel pipe has stronger effect of contraction to concrete, shaft is overall
Bearing capacity and ductility all relatively good it is achieved that the design requirement of strong column and weak beam.
5) overall structure meets the design principle of " strong column and weak beam, the weak component of strong node ", and node possesses multiple tracks and provides fortification against earthquakes
Line, it is to avoid because partial component destroy and lead to integral system destroy, also possess simultaneously necessary intensity, good deformability and
Energy dissipation capacity.
Brief description
Fig. 1 is that this utility model supports plug-in type beam column to support U-shaped dual-sided board node structure schematic diagram；
Fig. 2 (a)-(c) is dual-sided board H profile steel combined beam structure schematic diagram；
Fig. 3 (a)-(c) is plus side plate multi-cavity steel tube concrete composite column structure schematic diagram；
Fig. 4 (a)-(c) is the supporting square tube structural representation of default reinforcing plate；
Fig. 5 (a)-(d) is that dual-sided board H profile steel combined support is mixed with the supporting square tube of the default reinforcing plate of insertion and multi-cavity steel tube
Solidifying local soil type zygostyle node structure schematic diagram；
Fig. 6 is that this utility model applies the multi-cavity steel tube concrete coupled column support frame system supporting plugging in fitting to show
It is intended to；
Fig. 7 (a)-(c) is beam yield failure process schematic；
Fig. 8 is the hysteresis loop schematic diagram of node.
In figure：1st, multi-cavity steel tube concrete coupled column；2nd, side plate；3rd, dual-sided board H profile steel combination beam；3-1, H profile steel；3-2、
Upper cover plate；3-3, ribbed stiffener；3-4, lower cover；3-5, connector；4th, the supporting square tube of upper default reinforcing plate；4-1, support side
Pipe；4-2, upper reinforcement cover plate；4-3, lower reinforcement cover plate；4-4, left reinforcement side plate；4-5, right reinforcement side plate；5th, lower default reinforcing plate
Supporting square tube.
Specific embodiment
With reference to specific embodiment, this utility model is described in further details.
As shown in figure 1, this utility model supports plug-in type beam column to support U-shaped bilateral plate node, including multi-cavity steel tube coagulation
Local soil type's zygostyle 1, and it is horizontally fixed on the bilateral of multi-cavity steel tube concrete coupled column 1 side by two blocks of side plates 2 and lower cover 3-4
Plate H profile steel combination beam 3, along above and below described dual-sided board H profile steel combination beam 3, inclined angle is inserted with upper default reinforcement
The supporting square tube 4 of plate and the supporting square tube 5 of lower default reinforcing plate, the supporting square tube 4 of upper default reinforcing plate and lower default reinforcing plate
Supporting square tube 5 constitute with dual-sided board H profile steel combination beam 3, multi-cavity steel tube concrete coupled column 1 and support plug-in type beam column to support U
Type bilateral plate node.
As shown in Fig. 2 (a)-(c), dual-sided board H profile steel combination bearing beam 3 of the present utility model, including H profile steel 3-1, and
Two pieces of ribbed stiffener 3-3 of setting between the section steel flange of H profile steel 3-1 end, ribbed stiffener 3-3 are welded on the web two of H profile steel 3-1
Side, is welded with, along the H profile steel 3-1 web both sides inside ribbed stiffener 3-3, the connector 3- flushing with H profile steel 3-1 edge a pair
5, it is respectively welded upper cover plate 3-2 outside lower flange in H profile steel 3-1.Wherein, connector 3-5 is steel angle structure, outside angle steel
Bolt hole is distributed with end face.
As shown in Fig. 3 (a)-(c), multi-cavity steel tube concrete coupled column both sides of the present utility model are fixed with side plate 2, side plate
2 are provided with the through hole corresponding with connector 3-5 bolt hole, are easy to be fixedly connected with dual-sided board H profile steel combination bearing beam 3.Two
It is horizontally fixed with lower cover 3-4, biside plate 2 is the rectangular slab being provided with hypotenuse, hypotenuse is located at two pieces and is clamped in multi-cavity between side plate 2
The top of the extension of concrete filled steel tube coupled column 1.
As shown in Fig. 4 (a)-(c), the supporting square tube 4 of default reinforcing plate includes supporting square tube 4-1, and is located at support side
The left reinforcement side plate 4-4 of the pipe 4-1 end left and right sides and right reinforcement side plate 4-5, and it is located at the upper and lower both sides in supporting square tube 4-1 end
Upper reinforcement cover plate 4-2 and lower strong cover plate 4-3；Wherein, left reinforcement side plate 4-4 and right reinforcement side plate 4-5 cuts for top side
The rectangular slab at right angle, mono- side of cutaway portion hypotenuse and supporting square tube 4-1 is fitted, and relatively cuts the diagonal bottom of right angle portions
While being horizontally disposed with, supporting square tube 4-1 is retained as the inclination angle with respect to 30 ° -60 ° of horizontally disposed base.Left reinforcement side plate
The width of 4-4 and right reinforcement side plate 4-5 is more than the width of supporting square tube 4-1, the width of upper reinforcement cover plate 4-2 and lower strong cover plate 4-3
The width slightly larger than supporting square tube 4-1 for the degree.
As shown in Fig. 5 (a)-(d), support plug-in type beam column of the present utility model supports U-shaped dual-sided board node installation process
As follows：
1) first side plate 2 is positioned in the both sides of multi-cavity steel tube concrete coupled column 1, then adopt three skirt leg weld seam sides
Side plate is welded together by formula with multi-cavity steel tube；
2) lower cover is positioned between biside plate, then lower cover 3-4 is welded on both sides using angle welding mode level
Between plate, pre-assembled dual-sided board H profile steel combination beam 3 is inserted between the side plate of both sides, will be added by tightening installation bolt
Strong type H profile steel combination beam 3 is fixed with biside plate temporarily, lower flange of girder edge and lower cover is stretched out plate portion and adopts angle welding phase
Even, then by side plate 2 and upper cover plate 3-2 and connector welding；
3) supporting square tube of default reinforcement side plate good for pre-production is inserted along biside plate upper and lower ends respectively, meet pre-
If the cutaway portion hypotenuse that side plate 4-2 is strengthened in the left and right strengthening the supporting square tube of side plate is fitted completely with the hypotenuse of biside plate, so
Afterwards the left and right of the supporting square tube of the default reinforcement side plate inserting up and down is strengthened by side plate 4-2 and both sides side plate using penetration weld mode
It is connected, complete the installation supporting plug-in type beam column to support U-shaped bilateral plate node.
As shown in fig. 6, region shown in circle is applied in the multi-cavity steel tube concrete supporting plugging in fitting for this utility model
Coupled column support frame system schematic diagram.Upper cant beam, lower inclined beam and horizontal beam for supporting this frame system support.
This utility model supports plug-in type beam column to support U-shaped bilateral plate node can improve its bearing capacity and energy dissipation capacity.
Strengthen cover plate 4-2 and lower reinforcement cover plate 4-3, left reinforcement side plate 4-4 and right reinforcement due to being provided with supporting square tube 4-1 in advance
Side plate 4-5, then the supporting square tube of this default reinforcing plate is inserted multi-cavity steel tube concrete coupled column up and down to tilt inserted mode
Sidepiece, and insertion cant beam (supporting square tube of default reinforcing plate), which easy construction at the scene, do not damage multi-cavity steel tube coagulation
Local soil type's zygostyle, saves material laborsaving.
Below insertion is supported for row explanation this utility model with multi-cavity steel tube concrete combination pole steel beam U-shaped rigid joint
Formula beam column supports the mechanical property of U-shaped bilateral plate node.
Using ABAQUS software, node is carried out with finite element analyses, node post is the multi-cavity steel tube concrete group of 200x600
Zygostyle, beam adopts the welding H-bar of H350x150x6x10, and at node, dual-sided board and cover sheet thickness are all same with flange of beam thick.
Shown in Finite element analysis results Fig. 7 (a)-(c).
Because using multi-cavity steel tube concrete coupled column, steel pipe has stronger effect of contraction to concrete, shaft entirety
Bearing capacity and ductility all relatively good it is achieved that the design requirement of strong column and weak beam.Multi-cavity steel tube concrete combines pole steel beam U-shaped
Shown in destruction order such as Fig. 7 (a)-(c) institute of rigid joint.When external force action is larger, away from node bonding pad beam-ends A first
Occur shown in plastic hinge Fig. 7 (a), Internal Force Redistribution, the bearing power increase of structure；With the increase of external force, beam cover plate B prior to
Side plate occurs shown in plastic hinge Fig. 7 (b)；Shown in final destruction such as Fig. 7 (c) of structure, beam-ends edge of a wing flexing, side plate upper and lower sides C
Large area is surrendered, but side plate does not form plastic hinge, and structure still has certain energy dissipation capacity, meets the design of the weak component of strong node
Require.
According to conceptual Design of Earthquake Resistance principle, structure should possess multiple tracks and provide fortification against earthquakes line this utility model, it is to avoid because of part structure
Part destroys and leads to integral system to destroy, and also requires that structure should possess necessary intensity, good deformability and power consumption simultaneously
Ability.This utility model supports plug-in type beam column to support U-shaped bilateral plate node to adopt multi-cavity steel tube concrete to combine pole steel beam U
Shape rigid joint form, by the way of post and beam-ends are isolated, by the node connector of full-height side plate and cover plate composition
To transmit beam-ends moment of flexure and shearing.When geological process, beam-ends plastic hinge first, consumes certain seismic energy and is formed
First earthquake protection line, back shroud plastic hinge occurs, dissipation seismic energy further, formed second earthquake protection line,
Side plate ultimately forms plastic hinge, forms the 3rd road earthquake protection line.Overall structure meets " strong column and weak beam, the weak component of strong node "
Design principle, the energy-dissipating property of structure is relatively good.As shown in figure 8, the hysteresis loop of node is full, do not have obvious pinch existing
As the energy dissipation capacity of node is good, and deformation is big, when coming earthquake, allows resident family have more escape time.
Above content be with reference to specific preferred implementation further detailed description of the utility model it is impossible to
Assert that specific embodiment of the present utility model is only limitted to this, for this utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple reasonings or replacement can also be made, all should be considered as
Belong to this utility model and determine scope of patent protection by the claims submitted to.
Claims (9)
1. a kind of support plug-in type beam column to support U-shaped bilateral plate node it is characterised in that：Including multi-cavity steel tube concrete combination
Post, and it is horizontally fixed on the dual-sided board H profile steel combination of multi-cavity steel tube concrete coupled column side by two blocks of side plates and lower cover
Beam, along above and below described dual-sided board H profile steel combination beam, inclined angle is inserted with the supporting square tube of default reinforcing plate, in advance
If the supporting square tube of reinforcing plate is constituted with dual-sided board H profile steel combination beam, multi-cavity steel tube concrete coupled column supports plug-in type beam column
Support U-shaped bilateral plate node.
2. according to claim 1 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described bilateral
Plate H profile steel combination beam includes H profile steel, and the two pieces of ribbed stiffeners arranging between the section steel flange of H profile steel end, along along ribbed stiffener
The H profile steel web both sides of side are connected with the connector flushing with H profile steel edge a pair, weld outside lower flange in H profile steel
There is upper cover plate.
3. according to claim 2 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described connection
Part is steel angle structure, bolt hole is distributed with the outer face of angle steel.
4. according to claim 2 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described upper lid
The width of plate is more than the width of lower flange in H profile steel.
5. according to claim 2 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described put more energy into
Rib is fixed on the web both sides of H profile steel.
6. according to claim 1 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described side plate
For being provided with the rectangular slab of hypotenuse, hypotenuse is located at the top of the extension of two pieces of clamping multi-cavity steel tube concrete coupled columns.
7. according to claim 1 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described side plate
It is provided with the through hole corresponding with connector bolt hole.
8. according to claim 1 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described default
The supporting square tube of reinforcing plate includes supporting square tube, and is located at the reinforcement side plate of the supporting square tube end left and right sides and upper and lower both sides
Reinforcement cover plate, left and right is strengthened side plate and is cut the rectangular slab at right angle, cutaway portion hypotenuse and supporting square tube one for top side
Side is fitted, and the diagonal base relatively cutting right angle portions is horizontally disposed with, and supporting square tube is retained as with respect to being horizontally disposed with
30 ° -60 ° of base inclination angle.
9. according to claim 8 support plug-in type beam column support U-shaped bilateral plate node it is characterised in that：Described left and right
The width strengthening side plate is more than the thickness of supporting square tube；The reinforcement cover plate of described upper and lower both sides is slightly larger than the width of supporting square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468608.1U CN205935234U (en) | 2016-05-20 | 2016-05-20 | Support bayonet beam column and support two curb plate nodes of U type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468608.1U CN205935234U (en) | 2016-05-20 | 2016-05-20 | Support bayonet beam column and support two curb plate nodes of U type |
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| Publication Number | Publication Date |
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| CN205935234U true CN205935234U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620468608.1U Active CN205935234U (en) | 2016-05-20 | 2016-05-20 | Support bayonet beam column and support two curb plate nodes of U type |
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| CN (1) | CN205935234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863077A (en) * | 2016-05-20 | 2016-08-17 | 西安建筑科技大学 | Support inserting type beam post support U-shaped bilateral plate node |
-
2016
- 2016-05-20 CN CN201620468608.1U patent/CN205935234U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863077A (en) * | 2016-05-20 | 2016-08-17 | 西安建筑科技大学 | Support inserting type beam post support U-shaped bilateral plate node |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190729 Address after: 710055 Shaanxi province Xi'an Beilin District Yanta Road No. 13 Patentee after: Xi'an construction division big Assets Management Co.,Ltd. Address before: 710055 Shaanxi province Xi'an Beilin District Yanta Road No. 13 Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190806 Address after: 710055 Campus of Xi'an University of Architectural Science and Technology, No. 13 Yanta Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Xi'an Jianda Assembly Steel Structure Research Institute Co.,Ltd. Address before: 710055 Shaanxi province Xi'an Beilin District Yanta Road No. 13 Patentee before: Xi'an construction division big Assets Management Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231031 Address after: 710086 Building E213, 8th Floor, West Yungu Phase I Park, Fengxi New City, Xixian New District, Xi'an City, Shaanxi Province Patentee after: Xi'an Jianda Feimi New Materials Technology Co.,Ltd. Address before: 710055 inside Xi'an University of architecture and technology, No.13, Yanta Road, Beilin District, Xi'an City, Shaanxi Province Patentee before: Xi'an Jianda Assembly Steel Structure Research Institute Co.,Ltd. |