CN114876264A - Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam - Google Patents
Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam Download PDFInfo
- Publication number
- CN114876264A CN114876264A CN202210461562.0A CN202210461562A CN114876264A CN 114876264 A CN114876264 A CN 114876264A CN 202210461562 A CN202210461562 A CN 202210461562A CN 114876264 A CN114876264 A CN 114876264A
- Authority
- CN
- China
- Prior art keywords
- plate
- steel pipe
- flange
- pipe column
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 129
- 239000010959 steel Substances 0.000 title claims abstract description 129
- 238000003780 insertion Methods 0.000 title claims abstract description 19
- 230000037431 insertion Effects 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000533950 Leucojum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a beam end insertion assembly type node for connecting a steel pipe concrete column and an H-shaped beam, which comprises a steel pipe column middle section, a connecting plate, an upper flange plate, a lower flange plate, a first flange cover plate, a steel pipe column upper section, a second flange cover plate, a steel pipe column lower section and a plurality of vertical inserting plates.
Description
Technical Field
The invention belongs to the field of assembled steel structures, and relates to a beam end insertion assembly type node for connecting a steel pipe concrete column and an H-shaped beam.
Background
The steel pipe concrete structure is formed by filling concrete in a steel pipe, can combine the advantages of steel and concrete, and is widely applied to the field of structural engineering. Because of the section sealing property of the square steel pipe and the circular steel pipe and the surface radian characteristic of the circular steel pipe, the existing square (round) steel pipe column-H-shaped steel beam connection is mostly connected by welding. The construction period is long, the quality of the welding seam is difficult to guarantee, and a large amount of residual deformation exists, so that the welding seam of the welding structure is prone to brittle fracture in the earthquake action. And the integrity of the steel pipe concrete column and the steel beam at the joint is weaker, the strength of the connecting structure is not enough, and the large potential safety hazard exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a beam end insertion assembly type node for connecting a steel pipe concrete column and an H-shaped beam, which has the characteristics of good integrity, higher connecting structure strength and difficult fracture.
In order to achieve the purpose, the beam end inserting assembly type node of the steel pipe concrete column connected with the H-shaped beam comprises a steel pipe column middle section, a connecting plate, an upper flange plate, a lower flange plate, a first flange cover plate, a steel pipe column upper section, a second flange cover plate, a steel pipe column lower section and a plurality of vertical inserting plates;
the middle section of the steel pipe column is provided with a plurality of first through holes and a plurality of second through holes, the lower end surface of the middle section of the steel pipe column is provided with a plurality of first grooves and a plurality of second grooves, all the vertical inserting plates are divided into two groups, wherein, the lower end surface of each vertical inserting plate in the first group of vertical inserting plates is provided with a plurality of third grooves, one vertical inserting plate in the first group of vertical inserting plates corresponds to one first through hole and one second through hole, the upper end surface of each vertical inserting plate in the second group of vertical inserting plates is provided with a fourth groove and a fifth groove, each vertical plugboard in the second group of vertical plugboards sequentially penetrates through the corresponding first through hole and the corresponding second through hole, and each vertical plugboard in the second group of vertical plugboards sequentially penetrates through the corresponding first groove, the corresponding third groove and the corresponding second groove; the fourth groove and the fifth groove are clamped on the side wall of the middle section of the steel pipe column;
an upper flange plate is fixed at the upper end of the middle section of the steel pipe column, a lower flange plate is fixed at the lower end of the middle section of the steel pipe column, and an H-shaped steel beam is fixed at the end part of each group of vertical insertion plates;
the lower end of the upper section of the steel pipe column is provided with a first flange cover plate, the upper end of the lower section of the steel pipe column is provided with a second flange cover plate, the first flange cover plate is connected with the upper flange edge of the H-shaped steel beam, the second flange cover plate is connected with the lower flange plate, and the second flange cover plate is connected with the lower flange edge of the H-shaped steel beam;
concrete is poured in the middle section of the steel pipe column, the upper section of the steel pipe column and the lower section of the steel pipe column;
the cross sections of the middle section of the steel pipe column, the upper section of the steel pipe column and the lower section of the steel pipe column are all circular.
The cross sections of the middle section of the steel pipe column, the upper section of the steel pipe column and the lower section of the steel pipe column are square.
The connecting plate is connected with the beam-end side plate through a first bolt.
The first flange cover plate is connected with the upper flange plate through a second bolt.
The first flange cover plate is connected with the upper flange of the H-shaped steel beam through a third bolt.
The second flange cover plate is connected with the lower flange plate through a fourth bolt.
The second flange cover plate is connected with the lower flange of the H-shaped steel beam through a fifth bolt.
The first bolt, the second bolt, the third bolt, the fourth bolt and the fifth bolt are all high-strength bolts.
The invention has the following beneficial effects:
when the beam end of the steel pipe concrete column connected with the H-shaped beam is inserted into an assembly type node, a grid-shaped structure is formed in the middle section of the steel pipe column by the vertical inserting plate, the upper flange plate, the lower flange plate, the first flange cover plate and the second flange cover plate are additionally arranged at the same time, and concrete is poured finally.
Drawings
FIG. 1 is an overall assembly view of a joint of the present invention in which a square steel tubular concrete column is connected to an H-beam 9;
FIG. 2 is a schematic connection diagram of a square concrete-filled steel tube 3 middle column with a vertical inserting plate 2;
FIG. 3 is a schematic view showing the connection of a square steel tube concrete column with an H-shaped steel beam 9;
FIG. 4 is an overall assembly view of a joint formed by connecting a circular steel tube concrete column and an H-shaped steel beam 9;
FIG. 5 is a schematic connection diagram of a round steel tube concrete 3 middle column with a vertical inserting plate 2;
FIG. 6 is a schematic view of the connection of a circular steel tube concrete column with an H-shaped steel beam 9;
FIG. 7 is a schematic view of the connection of the H-shaped steel beam 9, the beam end plate 8, the transverse insertion plate 7 and the beam end side plate 10;
fig. 8 is a schematic structural diagram of the upper flange plate 5, the lower flange plate 6, the upper flange cover plate 1 and the lower flange cover plate 13 in the present invention.
The structure comprises a steel pipe column, a connecting plate, a first flange plate, a second flange plate, a first flange cover plate, a second flange cover plate, a first flange cover plate, a second flange cover plate, a first flange cover plate and a second flange cover plate, wherein the first flange cover plate is arranged on the middle section of the steel pipe column, the first flange cover plate, the second flange cover plate and the second flange cover plate, the second flange cover plate and the first flange cover plate, the second flange cover plate and the second flange cover plate, the first flange cover plate, the second flange cover plate, and the first flange cover plate, and the second flange cover plate, and the first cover plate, and the second plate, and the first flange plate, and the second plate, and the first and the second plate, and the second plate.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1 to 8, the beam-end insertion fabricated node of the steel pipe concrete column connected to the H-beam according to the present invention includes a steel pipe column middle section 1, a connection plate 4, an upper flange plate 5, a lower flange plate 6, a first flange cover plate 11, a steel pipe column upper section 12, a second flange cover plate 13, a steel pipe column lower section 14, and a plurality of vertical insertion plates 2;
the middle section 1 of the steel pipe column is provided with a plurality of first through holes and a plurality of second through holes, the lower end face of the middle section 1 of the steel pipe column is provided with a plurality of first grooves and a plurality of second grooves, all the vertical inserting plates 2 are divided into two groups, wherein the lower end face of each vertical inserting plate 2 in the first group of vertical inserting plates 2 is provided with a plurality of third grooves, one vertical inserting plate 2 in the first group of vertical inserting plates 2 corresponds to one first through hole and one second through hole, the upper end face of each vertical inserting plate 2 in the second group of vertical inserting plates 2 is provided with a fourth groove and a fifth groove, one vertical inserting plate 2 in the second group of vertical inserting plates 2 corresponds to one first groove, one second groove and one third groove, each vertical inserting plate 2 in the first group of vertical inserting plates 2 sequentially penetrates through the corresponding first through hole and the corresponding second through hole, and each vertical inserting plate 2 in the second group of vertical inserting plates 2 sequentially penetrates through the corresponding first groove, and the second groove, A corresponding third groove and a corresponding second groove; the fourth groove and the fifth groove are clamped on the side wall of the middle section 1 of the steel pipe column;
an upper flange plate 5 is fixed at the upper end of the middle section 1 of the steel pipe column, a lower flange plate 6 is fixed at the lower end of the middle section 1 of the steel pipe column, an H-shaped steel beam 9 is fixed at the end part of each group of vertical insertion plates 2, a beam end plate 8 is arranged at the end part of the H-shaped steel beam 9, a transverse insertion plate 7 is arranged on the beam end plate 8, a sixth groove is arranged at the end part of each vertical insertion plate 2, the transverse insertion plate 7 is inserted into the sixth groove, a beam end side plate 10 is arranged on the side surface of the end part of the H-shaped steel beam 9, a connecting plate 4 is connected with the beam end side plate 10 through a first bolt, and the end part of the connecting plate 4 is fixed on the outer wall of the middle section 1 of the steel pipe column;
the lower extreme of steel-pipe column upper segment 12 is provided with first flange cover plate 11, and the upper end of steel-pipe column lower segment 14 is provided with second flange cover plate 13, and wherein, first flange cover plate 11 is connected with upper flange plate 5 through the second bolt, and first flange cover plate 11 is connected with the upper flange of H shaped steel roof beam 9 through third bolt 15, and second flange cover plate 13 is connected with lower flange 6 through the fourth bolt, and second flange cover plate 13 is connected with the lower flange of H shaped steel roof beam 9 through the fifth bolt.
The cross sections of the steel pipe column middle section 1, the steel pipe column upper section 12 and the steel pipe column lower section 14 are all circular; or the cross sections of the steel pipe column middle section 1, the steel pipe column upper section 12 and the steel pipe column lower section 14 are all square.
The first bolt, the second bolt, the third bolt 13, the fourth bolt and the fifth bolt are all high-strength bolts.
The concrete construction process of the invention is as follows:
in a factory, a vertical inserting plate 2 is connected with a steel pipe column middle section 1, then a connecting plate 4, an upper flange plate 5 and a lower flange plate 6 are connected with the steel pipe column middle section 1, a first flange cover plate 11 is connected with a steel pipe column upper section 12, a second flange cover plate 13 is connected with a steel pipe column lower section 14, a beam end side plate 10, an H-shaped steel beam 9 and a transverse inserting plate 7 are connected, then the beam end side plate, the H-shaped steel beam and the transverse inserting plate are transported to a construction site, then all the components are connected through a first bolt, a second bolt, a third bolt 15, a fourth bolt and a fifth bolt, and finally concrete 3 is poured.
The main innovation point of the invention is that the vertical inserting plates 2 on the column are connected into a whole in a longitudinal and transverse inserting mode and are preset in the steel pipe column, and then the transverse inserting plate 7 on the beam end plate 8 and the vertical inserting plate 2 on the column are inserted into each other, so that the vertical inserting plate becomes a whole with better performance, similar to the principle of a snowflake inserting plate. On one hand, the welding problem caused by the connection node of the square (round) steel pipe column and the H-shaped steel beam 9 can be avoided, the factory standardized production and the site assembly can be realized, the construction period and the economic cost are greatly saved, and the connection assembly problem of the steel pipe column and the H-shaped steel beam 9 can be solved; on the other hand, the joint connection is reliable, the torsional rigidity is high, the integrity of the joint is greatly enhanced by utilizing the structural form of the flange cover plate and pouring the concrete 3 in the steel pipe, so that the key joint part can effectively play a role together by steel and the concrete 3; finally, the node can enable the beam to be plastically hinged to the end of the flange cover plate, and is high in ductility and good in seismic performance.
Claims (9)
1. A beam end inserting assembly type node for connecting a steel pipe concrete column and an H-shaped beam is characterized by comprising a steel pipe column middle section (1), a connecting plate (4), an upper flange plate (5), a lower flange plate (6), a first flange cover plate (11), a steel pipe column upper section (12), a second flange cover plate (13), a steel pipe column lower section (14) and a plurality of vertical inserting plates (2);
the middle section (1) of the steel pipe column is provided with a plurality of first through holes and a plurality of second through holes, the lower end surface of the middle section (1) of the steel pipe column is provided with a plurality of first grooves and a plurality of second grooves, all the vertical inserting plates (2) are divided into two groups, wherein the lower end surface of each vertical inserting plate (2) in the first group of vertical inserting plates (2) is provided with a plurality of third grooves, one vertical inserting plate (2) in the first group of vertical inserting plates (2) corresponds to one first through hole and one second through hole, the upper end surface of each vertical inserting plate (2) in the second group of vertical inserting plates (2) is provided with a fourth groove and a fifth groove, one vertical inserting plate (2) in the second group of vertical inserting plates (2) corresponds to one first groove, one second groove and one third groove, and each vertical inserting plate (2) in the first group of vertical inserting plates (2) sequentially passes through the corresponding first through hole and the corresponding second through hole, each vertical inserting plate (2) in the second group of vertical inserting plates (2) sequentially penetrates through the corresponding first groove, the corresponding third groove and the corresponding second groove; the fourth groove and the fifth groove are clamped on the side wall of the middle section (1) of the steel pipe column;
an upper flange plate (5) is fixed at the upper end of the middle section (1) of the steel pipe column, a lower flange plate (6) is fixed at the lower end of the middle section (1) of the steel pipe column, an H-shaped steel beam (9) is fixed at the end part of each group of vertical insertion plates (2), a beam end plate (8) is arranged at the end part of the H-shaped steel beam (9), a transverse insertion plate (7) is arranged on the beam end plate (8), a sixth groove is arranged at the end part of each vertical insertion plate (2), the transverse insertion plate (7) is inserted into the sixth groove, a beam end side plate (10) is arranged on the side surface of the end part of the H-shaped steel beam (9), a connecting plate (4) is connected with the beam end side plate (10), and the end part of the connecting plate (4) is fixed on the outer wall of the middle section (1) of the steel pipe column;
a first flange cover plate (11) is arranged at the lower end of the upper section (12) of the steel pipe column, a second flange cover plate (13) is arranged at the upper end of the lower section (14) of the steel pipe column, wherein the first flange cover plate (11) is connected with the upper flange plate (5), the first flange cover plate (11) is connected with the upper flange of the H-shaped steel beam (9), the second flange cover plate (13) is connected with the lower flange plate (6), and the second flange cover plate (13) is connected with the lower flange of the H-shaped steel beam (9);
concrete (3) is poured in the steel pipe column middle section (1), the steel pipe column upper section (12) and the steel pipe column lower section (14).
2. The beam-end inserted fabricated joint of a concrete filled steel tubular column connected with an H-beam as claimed in claim 1, wherein the cross sections of the middle steel tubular column section (1), the upper steel tubular column section (12) and the lower steel tubular column section (14) are all circular.
3. The beam-end inserted fabricated node of a concrete filled steel tubular column connected with an H-beam according to claim 1, characterized in that the cross sections of the middle steel tubular column section (1), the upper steel tubular column section (12) and the lower steel tubular column section (14) are square.
4. Beam-end plug-in fabricated joint for concrete filled steel tubular columns connected to H-beams according to claim 1, characterised in that the connection plate (4) is connected to the beam-end side plate (10) by means of a first bolt.
5. Beam-end plug-in fabricated joint for concrete filled steel tubular columns connected to H-beams according to claim 4, characterized in that the first flanged cover plate (11) is connected to the upper flanged plate (5) by means of second bolts.
6. Beam-end plug-in fabricated joint for concrete filled steel tubular columns connected to H-beams according to claim 5, characterized in that the first flange cover 11 is connected to the upper flange of the H-beam (9) by means of third bolts (15).
7. Beam-end plug-in fabricated joint for concrete filled steel tubular columns connected to H-beams according to claim 6, characterized in that the second flange cover (13) is connected to the lower flange plate (6) by means of a fourth bolt.
8. Beam-end insertion fabricated node for concrete filled steel tubular columns connected to H-beams according to claim 7, characterized in that the second flange cover (13) is connected to the lower flange of the H-beam (9) by means of fifth bolts.
9. The beam-end insertion fabricated joint for concrete filled steel tubular columns connected to H-beams according to claim 8, characterized in that the first, second, third, fourth and fifth bolts are all high-strength bolts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210461562.0A CN114876264A (en) | 2022-04-28 | 2022-04-28 | Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210461562.0A CN114876264A (en) | 2022-04-28 | 2022-04-28 | Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114876264A true CN114876264A (en) | 2022-08-09 |
Family
ID=82671994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210461562.0A Pending CN114876264A (en) | 2022-04-28 | 2022-04-28 | Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114876264A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000040240A (en) * | 1998-12-17 | 2000-07-05 | 신현준 | Steel frame forming damper joint |
KR20160052944A (en) * | 2014-10-29 | 2016-05-13 | 주식회사 한빛구조엔지니어링 | The connection structure between high strength polygonal concrete filled steel tube column and steel girder |
CN107893481A (en) * | 2017-12-21 | 2018-04-10 | 青岛理工大学 | With the full assembling steel frame structural system for recovering function |
CN208056293U (en) * | 2018-03-20 | 2018-11-06 | 辽宁工程技术大学 | A kind of assembling rectangular steel-tube concrete column-girder steel partition board perforation node |
CN109881789A (en) * | 2019-03-28 | 2019-06-14 | 华南理工大学 | A kind of dismountable girder steel-steel core concrete column punching connecting node |
CN111962668A (en) * | 2020-09-07 | 2020-11-20 | 西安建筑科技大学 | Assembled square steel pipe-H shaped steel beam column connected node |
-
2022
- 2022-04-28 CN CN202210461562.0A patent/CN114876264A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000040240A (en) * | 1998-12-17 | 2000-07-05 | 신현준 | Steel frame forming damper joint |
KR20160052944A (en) * | 2014-10-29 | 2016-05-13 | 주식회사 한빛구조엔지니어링 | The connection structure between high strength polygonal concrete filled steel tube column and steel girder |
CN107893481A (en) * | 2017-12-21 | 2018-04-10 | 青岛理工大学 | With the full assembling steel frame structural system for recovering function |
CN208056293U (en) * | 2018-03-20 | 2018-11-06 | 辽宁工程技术大学 | A kind of assembling rectangular steel-tube concrete column-girder steel partition board perforation node |
CN109881789A (en) * | 2019-03-28 | 2019-06-14 | 华南理工大学 | A kind of dismountable girder steel-steel core concrete column punching connecting node |
CN111962668A (en) * | 2020-09-07 | 2020-11-20 | 西安建筑科技大学 | Assembled square steel pipe-H shaped steel beam column connected node |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10851537B2 (en) | Assemblable structural column joint connection using fiber-reinforced concrete filled round double steel tubes and mounting method thereof | |
WO2022213492A1 (en) | Frp steel concrete column and steel beam combined joint, and installation method therefor | |
CN111677172B (en) | Steel-concrete combined structure plate column structure system | |
CN214738828U (en) | Steel construction assembled beam column connected node device | |
CN105908856A (en) | Prefabricated reinforcement concrete block T-shaped rib anti-buckling steel plate earthquake resistant wall | |
CN111042332B (en) | Composite steel pipe concrete column beam column node and column-column inner steel pipe flange connection system | |
CN102182276A (en) | Mega column in shape of double Chinese characters ya and manufacturing method thereof | |
CN113931309A (en) | Assembled steel construction beam column weak axis connected node | |
CN103104033A (en) | Steel pipe splicing non-protrusion conversion type connection node | |
CN114876264A (en) | Beam-end insertion assembly type node for connecting concrete-filled steel tubular column with H-shaped beam | |
CN217998414U (en) | Connecting device for quickly assembling horizontal seams of multi-cavity steel pipes | |
CN212896859U (en) | Beam and wall connecting node of bolt-tube concrete structure | |
CN216108977U (en) | Assembled square steel pipe column-H shaped steel roof beam-baffle link up node | |
CN113668703B (en) | Direct-insertion type bolt-free connecting joint of closed cavity column and steel beam with three-layer ring plate structure | |
CN216195475U (en) | Modular building structure | |
CN212427803U (en) | Underpinning node for concrete filled steel tubular column | |
CN212317182U (en) | Steel beam and precast concrete column rigid connection joint | |
CN212336340U (en) | Beam-column edge node of assembled concrete-filled steel tube column-composite flange I-beam | |
CN213539290U (en) | Assembly welding type steel structure beam column connection reinforced node | |
CN211172362U (en) | Hoop reinforced square steel tube concrete combined special-shaped beam column-steel beam connecting joint | |
CN210421531U (en) | BHI steel ladle concrete combined shear wall | |
CN209854935U (en) | Compound concrete-filled steel tube corner post-steel beam joint | |
CN113565207A (en) | Assembly type beam-column joint structure and construction method | |
CN111549949A (en) | Well word steel pipe reinforcement does not have roof beam superstructure structure | |
CN215858189U (en) | Circular steel tube concrete column and shaped steel concrete beam connected node structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |