CN107574924A - The component and construction method of a kind of assembly concrete framework for the connection of steel joint - Google Patents
The component and construction method of a kind of assembly concrete framework for the connection of steel joint Download PDFInfo
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- CN107574924A CN107574924A CN201610524278.8A CN201610524278A CN107574924A CN 107574924 A CN107574924 A CN 107574924A CN 201610524278 A CN201610524278 A CN 201610524278A CN 107574924 A CN107574924 A CN 107574924A
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Abstract
The present invention provides a kind of component of the assembly concrete framework for the connection of steel joint, including bottom column component, middle level post component, top layer post component and beam member.The upper end of the bottom column component is provided with column joint.The lower end of the middle level post component is provided with lower column joint, and upper end is provided with column joint.Node area I is provided with the middle part of the middle level post component.The lower end of the top layer post component is provided with lower column joint, and its upper end is node area II.The both ends of the beam member are provided with beam splice I.The node area I of the middle level post component has some brackets I extended laterally.The end set of every bracket I has beam splice II.The node area II of the top layer post component has some brackets II extended laterally.The end set of every bracket II has beam splice II.
Description
Technical field
The present invention relates to construction engineering technical field, more particularly to a kind of assembly concrete frame for the connection of steel joint
The component and construction method of frame.
Background technology
Precast Concrete Frame is that concrete frame is decomposed into several beam column transport members, passes through joint connection in site
Form the structure type of general frame.Industrialize, construct the characteristics of rapid because it can realize the standardization of products, making, meet
The target of China's building industry modernization, so as to more and more be applied, connected mode and calculating side on its node
Method also turns into most active research direction.
At present, the joint connection in site position of Precast Concrete Frame post is arranged on the beam column node area at floor absolute altitude more
Domain, and using the method construction poured after monoblock type, have the following disadvantages：1. internal force is larger at concrete frame joint, stress is complicated,
The design principle of " the strong weak component of node " relatively difficult to achieve in design；2. node region reinforcing bar is numerous, cast in situs difficulty of construction is big；
3. concrete is waited to carry out down one of working procedure, technology intermission time length, shadow after reaching some strength after cast in situs
Ring the construction period.
The content of the invention
Present invention aim to address the problem of now current node area assembling and cast-in-place process complexity.
To realize that the technical scheme that the object of the invention uses is such, a kind of assembled for the connection of steel joint mixes
Coagulate the component of native framework, including bottom column component, middle level post component, top layer post component and beam member.
The upper end of the bottom column component is provided with column joint.The lower end of the middle level post component is provided with lower prop and connect
Head, upper end are provided with column joint.Node area I is provided with the middle part of the middle level post component.The lower end of the top layer post component
Lower column joint is provided with, its upper end is node area II.The both ends of the beam member are provided with beam splice I.
The node area I of the middle level post component has some brackets I extended laterally.The end set of every bracket I has
Beam splice II.The node area II of the top layer post component has some brackets II extended laterally.The end of every bracket II is set
It is equipped with beam splice II.
The upper column joint includes cover plate, steel case, bottom plate I and otic placode.The steel plate of through hole is provided with centered on the cover plate.Institute
State the cavity that steel case is the open at both ends surrounded by four blocks of steel plates.The bottom plate I and otic placode be rectangular flat, wherein otic placode
Row's bolt hole is provided with plate face.One opening end of the steel case is connected with cover plate side.The bottom plate I is welded in steel case
Portion, and close to another opening end of steel case.The surrounding of the steel case is welded with one piece of otic placode.The otic placode arranges vertically, and
Plate face is vertical with the steel case side where it.The upper column joint is processed into groove shape close to the opening end of bottom plate I to be made
Lower column joint.
The construction method of above-mentioned each component comprises the following steps：
1) these prefabricated profiled components are transported to job site, prepared assembled.
2) crane hanging component bottom column component, its lower end is fixed in rim of a cup basis, then cast-in-place concrete causes bottom
Layer post component is combined as a whole with rim of a cup basis.
3) by middle level post lifting component to the top of bottom column component, lower column joint is made to be placed on column joint, then
The otic placode corresponding to upper and lower column joint is linked together with splicing steel plate I, and fastened by high-strength bolt.
4) after the completion of upper and lower column joint is fastened by high-strength bolt, crane can unclamp this middle level post component, then
Other middle level post components are lifted, while the upper and lower column joint completed to fastening welds.
5) lifting cross beam component, it is placed between the bracket I of adjacent middle level post component, then by beam splice I and beam splice
II links together, then is welded.
6) by top layer post lifting component to the top of middle level post component, lower column joint is made to be placed on column joint, then
The otic placode corresponding to upper and lower column joint is linked together with splicing steel plate I, and fastened by high-strength bolt.
7) lifting cross beam component, it is placed between the bracket II of adjacent top layer post component, then by beam splice I and beam splice
II links together, then is welded.
Further, it is provided with node area III in the middle part of the bottom column component.There are some transverse directions to prolong in the node area III
The bracket III stretched.The end set of every bracket III has beam splice II.
Further, the bottom column component is divided into bottom side column, bottom center pillar and the class of bottom corner post three.The middle level post structure
Part is divided into middle level side column, middle level center pillar and the class of middle level corner post three.The top layer post component is divided into Top-Exterior Columns of PC, top layer center pillar and top
The layer class of corner post three.
The middle part of the bottom side column is T-shaped node, and its node area has three brackets III extended laterally.The bottom
The middle part of center pillar is cross node, and its node area has four brackets III extended laterally.The middle part of the bottom corner post is L
Type node, its node area have two brackets III extended laterally.
The middle level side column is correspondingly connected to the top of bottom side column.The middle part of the middle level side column is T-shaped node, and it is saved
Point area has three brackets I extended laterally.The middle level center pillar is correspondingly connected to the top of bottom center pillar.The middle level center pillar
Middle part be cross node, its node area has four brackets I extended laterally.The middle level corner post is correspondingly connected to bottom
The top of corner post.The middle part of the middle level corner post is L-type node, and its node area has two brackets I extended laterally.
The Top-Exterior Columns of PC is correspondingly connected to the top of middle level side column.The upper end of the Top-Exterior Columns of PC is T-shaped node, and it is saved
Point area has three brackets II extended laterally.The top layer center pillar is correspondingly connected to the top of middle level center pillar.In the top layer
The upper end of post is cross node, and its node area has four brackets II extended laterally.The top layer corner post is correspondingly connected to
The top of middle level corner post.The upper end of the top layer corner post is L-type node, and its node area has two brackets II extended laterally.
Further, the beam splice I and beam splice II are box joint.The box joint includes two pieces of webs I, bottoms
Plate II and beam end plate.Two blocks of webs I and bottom plate II are vertically connected on beam end plate.Two blocks of webs I are located at the relative of beam end plate
Both sides, and plate face is parallel.Row's bolt hole is provided with the web I.The bottom plate II is perpendicular to web I.Wherein described beam connects
The end set of first I bottom plate II is into groove shape.When two corresponding beam splices I and beam splice II splice, using splice plate
The corresponding web I of II connection, and fastened by high-strength bolt, while welded at the groove of bottom plate II.
Further, the beam splice I and beam splice II are I-shaped type joint.The I-shaped type joint include I-steel and
Beam end plate.The I-steel is connected on beam end plate, and the web of I-steel is perpendicular to beam end plate.On the web of the I-steel
It is provided with row's bolt hole.The upper and lower top flange of the wherein I-steel of beam splice I is all provided with being set to groove shape.Two corresponding
When beam splice I and beam splice II splice, corresponding web is connected using splice plate II, and is fastened by high-strength bolt, simultaneously
Welded respectively at the groove on the upper and lower edge of a wing.
The beneficial effects of the invention are as follows：
1. precast concrete frame column scene stitching position is arranged on floor near middle so that assembly node stress compared with
It is small, it is easy to accomplish " equivalent cast-in-place " effect.
2. assembly node position avoids the reinforcing bar of beams of concrete so that simple structure, power transmission are reliable.
Using being welded to connect, 3. construction quality is more prone to ensure the joint connection in site of Precast Concrete Frame post.
4. using the assembled connection method of the present invention, cast-in-place concrete is reduced, is reduced environmental pollution.
5. using the assembled connection method of the present invention, next process construction, nothing can be carried out after the completion of Site Welding
Technology intermission is needed, improves speed of application.
Brief description of the drawings
Fig. 1 is the schematic diagram of middle level center pillar.
Fig. 2 is the schematic diagram of middle level side column.
Fig. 3 is the schematic diagram of middle level corner post.
Fig. 4 is the schematic diagram of top layer center pillar.
Fig. 5 is the schematic diagram of Top-Exterior Columns of PC.
Fig. 6 is the schematic diagram of top layer corner post.
Fig. 7 is the schematic diagram of crossbeam.
Fig. 8 is the connection diagram of upper and lower column joint.
Fig. 9 is a kind of block schematic illustration after the completion of the splicing of these components.
Figure 10 is a kind of block schematic illustration after the completion of the splicing of these components.
Figure 11 is the schematic diagram of lower column joint (square groove then represents column joint).
Figure 12 is the sectional view of lower column joint.
Figure 13 is the schematic diagram of box beam splice.
Figure 14 is the schematic diagram of i-shaped beamses joint.
Figure 15 is the schematic diagram without the bottom column component in node area.
Figure 16 be the bottom center pillar with node area schematic diagram (bottom side column and corner post are similar with middle level post component, only under
End is without lower column joint).
In figure：Bottom column component 1, node area III 101, bracket III 102, middle level post component 2, node area I 201, bracket I
202nd, top layer post component 3, node area II 301, bracket II 302, beam member 4, cover plate 5, steel case 6, bottom plate I 7, otic placode 8, splicing
Steel plate I 9, bottom side column 11, bottom center pillar 12, bottom corner post 13, middle level side column 21, middle level center pillar 22, middle level corner post 23, top layer
Side column 31, top layer center pillar 32, top layer corner post 33, web I 116, bottom plate II 117, beam end plate 118, splice plate II 119.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, but should not be construed the above-mentioned theme of the present invention
Scope is only limitted to following embodiments.Without departing from the idea case in the present invention described above, known according to ordinary skill
Knowledge and customary means, make various replacements and change, all should include within the scope of the present invention.
Referring to Fig. 1 to Fig. 7, the present embodiment provides a kind of component of the assembly concrete framework for the connection of steel joint,
Including bottom column component 1, middle level post component 2, top layer post component 3 and beam member 4.
The upper end of the bottom column component 1 is provided with column joint.The lower end of the middle level post component 2 is provided with lower prop and connect
Head, upper end are provided with column joint.The middle part of the middle level post component 2 is provided with node area I 201.The top layer post component 3
Lower end is provided with lower column joint, and its upper end is node area II 301.The both ends of the beam member 4 are provided with beam splice I.
The node area I 201 of the middle level post component 2 has some brackets I 202 extended laterally.Every bracket I 202
End set has beam splice II.The node area II 301 of the top layer post component 3 has some brackets II 302 extended laterally.Often
The end set of root bracket II 302 has beam splice II.
It should be noted that the bottom column component 1 divides for bottom side column 11, bottom center pillar 12 and bottom corner post 13 3
Class.The middle level post component 2 divides for middle level side column 21, middle level center pillar 22 and the class of middle level corner post 23 3.The top layer post component 3 divides
For Top-Exterior Columns of PC 31, top layer center pillar 32 and the class of top layer corner post 33 3.
The middle part of the bottom side column 11 is T-shaped node, and its node area has three brackets III 102 extended laterally.Institute
The middle part for stating bottom center pillar 12 is cross node, and its node area has four brackets III 102 extended laterally.The bottom angle
The middle part of post 13 is L-type node, and its node area has two brackets III 102 extended laterally.
The corresponding top for being connected to bottom side column 11 of the middle level side column 21.The middle part of the middle level side column 21 is T-shaped section
Point, its node area have three brackets I 202 extended laterally.The middle level center pillar 22 is corresponding to be connected to the upper of bottom center pillar 12
Side.The middle part of the middle level center pillar 22 is cross node, and its node area has four brackets I 202 extended laterally.In described
The corresponding top for being connected to bottom corner post 13 of layer corner post 23.The middle part of the middle level corner post 23 is L-type node, and its node area has
Two brackets I 202 extended laterally.
The corresponding top for being connected to middle level side column 21 of the Top-Exterior Columns of PC 31.The upper end of the Top-Exterior Columns of PC 31 is T-shaped section
Point, its node area have three brackets II 302 extended laterally.The top layer center pillar 32 is corresponding to be connected to the upper of middle level center pillar 22
Side.The upper end of the top layer center pillar 32 is cross node, and its node area has four brackets II 302 extended laterally.It is described
The corresponding top for being connected to middle level corner post 23 of top layer corner post 33.The upper end of the top layer corner post 33 is L-type node, and its node area has
There are two brackets extended laterally II 302.
Referring to Fig. 8, Figure 11 and Figure 12, the upper column joint includes cover plate 5, steel case 6, bottom plate I 7 and otic placode 8.The cover plate
The steel plate of through hole is provided with centered on 5.The steel case 6 is the cavity of the open at both ends surrounded by four blocks of steel plates.The He of bottom plate I 7
Otic placode 8 is rectangular flat, and row's bolt hole is wherein provided with the plate face of otic placode 8.One opening end of the steel case 6 and cover plate 5
Side connects.The bottom plate I 7 is welded on inside steel case 6, and close to another opening end of steel case 6.The surrounding of the steel case 6 is equal
It is welded with one piece of otic placode 8.The otic placode 8 is arranged vertically, and plate face is vertical with the steel case side where it.By the upper column joint
Groove shape is processed into close to the opening end of bottom plate I 7, and lower column joint is made.During corresponding upper and lower column joint splicing, using splicing
Slab I 9 connects the corresponding otic placode 8 of upper and lower column joint, and is fastened by high-strength bolt, while carries out weld all around, shape in welding ends
Into weld seam.
In the present embodiment, referring to Figure 13, the beam splice I and beam splice II can be box joint.The box joint
Including two blocks of webs I 116, bottom plate II 117 and beam end plate 118.Two blocks of webs I 116 and bottom plate II 117 are vertically connected on beam-ends
On plate 118.Two blocks of webs I 116 are located at the opposite sides of beam end plate 118, and plate face is parallel.A row is provided with the web I 116
Bolt hole.The bottom plate II 117 is perpendicular to web I 116.The end set of the bottom plate II 117 of wherein described beam splice I is into groove
Shape.When two corresponding beam splices I and beam splice II splice, corresponding web I 116 is connected using splice plate II 119, and
Fastened by high-strength bolt, while welded at the groove of bottom plate II 117.
Referring to Figure 14, above-mentioned box joint also can use I-shaped type joint to be replaced.The I-shaped type joint includes I-shaped
Steel and beam end plate 118.The I-steel is connected on beam end plate 118, and the web of I-steel is perpendicular to beam end plate 118.It is described
Row's bolt hole is provided with the web of I-steel.The upper and lower top flange of the wherein I-steel of beam splice I is all provided with being set to groove
Shape.When two corresponding beam splices I and beam splice II splice, corresponding web is connected using splice plate II 119, and pass through
High-strength bolt fastens, while is welded respectively at the groove on the upper and lower edge of a wing.
Referring to Fig. 9 and Figure 10, above-mentioned each component can be assembled into integral frame structure, its specific construction method bag
Include following steps：
1) these prefabricated profiled components are transported to job site, prepared assembled.
2) crane hanging component bottom column component 1, its lower end is fixed in rim of a cup basis, then cast-in-place concrete causes bottom
Layer post component 1 is combined as a whole with rim of a cup basis.The work of next step will be carried out after the whole installation of bottom column component 1.
3) middle level post component 2 is lifted to the top of bottom column component 1, lower column joint is placed on column joint, so
The otic placode 8 corresponding to upper and lower column joint is linked together with splicing steel plate 9 afterwards, and fastened by high-strength bolt.Need to illustrate
Be.Middle level center pillar 22 is corresponding to be arranged on the top of bottom center pillar 12, and middle level corner post 23 is corresponded to installed in the top of bottom corner post 13,
Middle level side column 21 is corresponding installed in the top of bottom side column 11.
4) after the completion of upper and lower column joint is fastened by high-strength bolt, crane can unclamp this middle level post component 2, turn
And other middle level post components 2 are lifted, while the upper and lower column joint completed to fastening welds.That is a component passes through
After bolt fastening, you can next component is lifted, and next worker can weld to the component fixed immediately, same to opportunity
Tool also is continuing to lift.
5) lifting cross beam component 4, it is placed between the bracket I 202 of adjacent middle level post component 2, then by beam splice I and beam
Joint II links together, then is welded.
6) top layer post component 3 is lifted to the top of middle level post component 2, lower column joint is placed on column joint, so
The otic placode 8 corresponding to upper and lower column joint is linked together with splicing steel plate 9 afterwards, and fastened by high-strength bolt.Here with step
It is rapid 3) similarly, their center pillar, side column, corner post be all corresponding installation in a vertical direction.
7) lifting cross beam component 4, be placed between the bracket II 302 of adjacent top layer post component 3, then by beam splice I with
Beam splice II links together, then is welded.
Claims (5)
- A kind of 1. component of assembly concrete framework for the connection of steel joint, it is characterised in that：Including bottom column component (1), middle level post component (2), top layer post component (3) and beam member (4)；The upper end of the bottom column component (1) is provided with column joint；The lower end of the middle level post component (2) is provided with lower prop and connect Head, upper end are provided with column joint；Node area I (201) is provided with the middle part of the middle level post component (2)；The top layer post structure The lower end of part (3) is provided with lower column joint, and its upper end is node area II (301)；The both ends of the beam member (4) are respectively provided with There is beam splice I；The node area I (201) of the middle level post component (2) has some brackets I (202) extended laterally；Every bracket I (202) end set has beam splice II；The node area II (301) of the top layer post component (3) has some extend laterally Bracket II (302)；The end set of every bracket II (302) has beam splice II；The upper column joint includes cover plate (5), steel case (6), bottom plate I (7) and otic placode (8)；It is provided with centered on the cover plate (5) logical The steel plate in hole；The steel case (6) is the cavity of the open at both ends surrounded by four blocks of steel plates；The bottom plate I (7) and otic placode (8) are equal For rectangular flat, row's bolt hole is wherein provided with the plate face of otic placode (8)；One opening end of the steel case (6) and cover plate (5) side Face connects；The bottom plate (7) is welded on steel case (6) inside, and close to another opening end of steel case (6)；The four of the steel case (6) Zhou Jun is welded with one piece of otic placode (8)；The otic placode (8) is arranged vertically, and plate face is vertical with the steel case side where it；By described in Upper column joint is processed into groove shape close to the opening end of bottom plate I (7) and lower column joint is made；The construction method of above-mentioned each component comprises the following steps：1) these prefabricated profiled components are transported to job site, prepared assembled；2) crane hanging component bottom column component (1), its lower end is fixed in rim of a cup basis, then cast-in-place concrete causes bottom Post component (1) is combined as a whole with rim of a cup basis；3) middle level post component (2) is lifted to the top of bottom column component (1), lower column joint is placed on column joint, so The otic placode (8) corresponding to upper and lower column joint is linked together with splicing steel plate I (9) afterwards, and fastened by high-strength bolt；4) after the completion of upper and lower column joint is fastened by high-strength bolt, crane can unclamp this middle level post component (2), then Other middle level post components (2) are lifted, while the upper and lower column joint completed to fastening welds；5) lifting cross beam component (4), be placed between the bracket I (202) of adjacent middle level post component (2), then by beam splice I with Beam splice II links together, then is welded；6) top layer post component (3) is lifted to the top of middle level post component (2), lower column joint is placed on column joint, so The otic placode (8) corresponding to upper and lower column joint is linked together with splicing steel plate I (9) afterwards, and fastened by high-strength bolt；7) lifting cross beam component (4), it is placed between the bracket II (302) of adjacent top layer post component (3), then by beam splice I Link together, then welded with beam splice II.
- 2. a kind of component of assembly concrete framework for the connection of steel joint according to claim 1, its feature exist In：Node area III (101) is provided with the middle part of the bottom column component；The node area III (101) has some extend laterally Bracket III (102)；The end set of every bracket III (102) has beam splice II.
- 3. a kind of component of assembly concrete framework for the connection of steel joint according to claim 2, its feature exist In：The bottom column component (1) is divided into bottom side column (11), bottom center pillar (12) and the class of bottom corner post (13) three；The middle level Post component (2) is divided into middle level side column (21), middle level center pillar (22) and the class of middle level corner post (23) three；The top layer post component (3) point For Top-Exterior Columns of PC (31), top layer center pillar (32) and the class of top layer corner post (33) three；The middle part of the bottom side column (11) is T-shaped node, and its node area has three brackets III (102) extended laterally；Institute The middle part for stating bottom center pillar (12) is cross node, and its node area has four brackets III (102) extended laterally；The bottom The middle part of layer corner post (13) is L-type node, and its node area has two brackets III (102) extended laterally；The corresponding top for being connected to bottom side column (11) of the middle level side column (21)；The middle part of the middle level side column (21) is T-shaped Node, its node area have three brackets I (202) extended laterally；The middle level center pillar (22) is corresponding to be connected to bottom center pillar (12) top；The middle part of the middle level center pillar (22) is cross node, and its node area has four brackets I extended laterally (202)；The corresponding top for being connected to bottom corner post (13) of the middle level corner post (23)；The middle part of the middle level corner post (23) is L Type node, its node area have two brackets I (202) extended laterally；The corresponding top for being connected to middle level side column (21) of the Top-Exterior Columns of PC (31)；The upper end of the Top-Exterior Columns of PC (31) is T-shaped Node, its node area have three brackets II (302) extended laterally；The top layer center pillar (32) is corresponding to be connected to middle level center pillar (22) top；The upper end of the top layer center pillar (32) is cross node, and its node area has four brackets extended laterally Ⅱ(302)；The corresponding top for being connected to middle level corner post (23) of the top layer corner post (33)；The upper end of the top layer corner post (33) is L-type node, its node area have two brackets II (302) extended laterally.
- 4. a kind of component of assembly concrete framework for the connection of steel joint according to claim 1, its feature exist In：The beam splice I and beam splice II are box joint；The box joint includes two pieces of webs I (116), bottom plate II And beam end plate (118) (117)；Two pieces of webs I (116) and bottom plate II (117) are vertically connected on beam end plate (118)；Two pieces Web I (116) is located at the opposite sides of beam end plate (118), and plate face is parallel；Row's bolt is provided with the web I (116) Hole；The bottom plate II (117) is perpendicular to web I (116)；The end set Cheng Po of the bottom plate II (117) of wherein described beam splice I Mouth shape；When two corresponding beam splices I and beam splice II splice, corresponding web I is connected using splice plate II (119) (116), and by high-strength bolt fasten, while welded at the groove of bottom plate II (117).
- 5. a kind of component of assembly concrete framework for the connection of steel joint according to claim 1, its feature exist In：The beam splice I and beam splice II are I-shaped type joint；The I-shaped type joint includes I-steel and beam end plate (118)； The I-steel is connected on beam end plate (118), and the web of I-steel is perpendicular to beam end plate (118)；The abdomen of the I-steel Row's bolt hole is provided with plate；The upper and lower top flange of the wherein I-steel of beam splice I is all provided with being set to groove shape；Two relative When beam splice I and beam splice II splicing answered, corresponding web is connected using splice plate II (119), and pass through high-strength bolt Fastening, while welded respectively at the groove on the upper and lower edge of a wing.
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| CN201610524278.8A CN107574924A (en) | 2016-07-05 | 2016-07-05 | The component and construction method of a kind of assembly concrete framework for the connection of steel joint |
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| CN201610524278.8A CN107574924A (en) | 2016-07-05 | 2016-07-05 | The component and construction method of a kind of assembly concrete framework for the connection of steel joint |
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Cited By (6)
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| CN108343147A (en) * | 2018-02-07 | 2018-07-31 | 华北水利水电大学 | A kind of frame building structure and its construction method of splicing assembly |
| CN108755950A (en) * | 2018-07-11 | 2018-11-06 | 上海应用技术大学 | Prefabricated concrete structure column and column rigid connection node and construction method |
| CN108755945A (en) * | 2018-06-29 | 2018-11-06 | 华南理工大学 | A kind of prefabricated assembled concrete bean column node and its construction method |
| CN111519841A (en) * | 2020-05-07 | 2020-08-11 | 金点石(北京)建筑设计咨询服务有限责任公司 | Column cap, frame column and building body |
| CN117587922A (en) * | 2024-01-19 | 2024-02-23 | 湖南航天建筑工程有限公司 | High-efficient assembled concrete connecting node structure |
| CN117587922B (en) * | 2024-01-19 | 2024-05-10 | 湖南航天建筑工程有限公司 | High-efficient assembled concrete connected node structure |
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| CN108343147A (en) * | 2018-02-07 | 2018-07-31 | 华北水利水电大学 | A kind of frame building structure and its construction method of splicing assembly |
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| CN117587922B (en) * | 2024-01-19 | 2024-05-10 | 湖南航天建筑工程有限公司 | High-efficient assembled concrete connected node structure |
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