CN114439108A - Install steel construction beam column joint fast - Google Patents

Install steel construction beam column joint fast Download PDF

Info

Publication number
CN114439108A
CN114439108A CN202210202026.9A CN202210202026A CN114439108A CN 114439108 A CN114439108 A CN 114439108A CN 202210202026 A CN202210202026 A CN 202210202026A CN 114439108 A CN114439108 A CN 114439108A
Authority
CN
China
Prior art keywords
joint
grooves
pipe
wall
plate
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
Application number
CN202210202026.9A
Other languages
Chinese (zh)
Inventor
沈程
张爱芳
李灵
范优铭
戴玉伟
俞鑫
牛杰
魏佳雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Vocational Institute of Engineering
Original Assignee
Changzhou Vocational Institute of Engineering
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changzhou Vocational Institute of Engineering filed Critical Changzhou Vocational Institute of Engineering
Priority to CN202210202026.9A priority Critical patent/CN114439108A/en
Publication of CN114439108A publication Critical patent/CN114439108A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements
    • E04B1/5806Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
    • E04B1/5812Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements
    • E04B1/5825Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5831Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2406Connection nodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention discloses a quick-mounting steel structure beam column joint, which relates to the technical field of constructional engineering and comprises a joint pipe, a longitudinal connecting pipe, a joint plate and a transverse connecting beam, wherein the inner walls of two ends of the joint pipe are symmetrically and uniformly provided with first splicing grooves, and first splicing strips are formed between the adjacent first splicing grooves; the longitudinal connecting pipe is provided with a pair of connecting grooves which are symmetrically arranged at the upper side and the lower side of the joint pipe, and the outer wall of one end of the longitudinal connecting pipe close to the joint pipe is uniformly provided with a second inserting groove; the joint plate is provided with four joint plates which are correspondingly welded in the middle of each outer wall of the joint pipe, the left inner wall and the right inner wall of each joint plate are provided with a third inserting groove, and a third inserting strip is formed between every two adjacent third inserting grooves; the transverse connection beams are provided with four transverse connection plates which are circularly arrayed around the joint pipe, the transverse connection plates are horizontally welded at the end parts of the transverse connection beams close to the joint pipe, the outer walls of the transverse connection plates are uniformly provided with five insertion grooves, and gradient insertion strips five are formed between the adjacent five insertion grooves. The steel structure beam column joint has the advantages of simple process, high construction speed and good joint performance.

Description

Install steel construction beam column joint fast
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a joint for quickly mounting a steel structure beam column.
Background
In the steel structure construction, beam column nodes are connected in a welding, bolt or welding and bolt combination mode, the welding and bolt connection construction operation time is long, and the construction quality is greatly influenced by people. Therefore, in the construction of the steel structure beam column joint, a construction process for fast assembling is urgently needed, the process can be simplified, and the assembling speed can be improved.
In order to solve the problem, the patent provides a quick installation steel structure beam column connects.
In order to solve the problems that the traditional steel structure beam column joint is long in construction time and difficult to guarantee construction quality, the invention provides the steel structure beam column joint which is quickly installed, and the joint is simple in process, high in construction speed and good in joint performance.
Disclosure of Invention
The invention aims to provide a quick-mounting steel structure beam-column joint so as to solve the defects caused in the prior art.
The utility model provides an install steel construction beam column fast and connect, includes the joint pipe, indulges takeover, connector plate and horizontal tie-in beam, wherein:
the connector pipe is a rectangular steel pipe and is vertically arranged, trapezoidal inserting grooves I are symmetrically and uniformly arranged on the inner walls of two ends of the connector pipe, and trapezoidal inserting strips I are formed between the adjacent inserting grooves I;
the longitudinal connecting pipe is provided with a pair of longitudinal connecting pipes which are symmetrically arranged at the upper side and the lower side of the joint pipe, the outer wall of one end of each longitudinal connecting pipe close to the joint pipe is uniformly provided with a second trapezoidal inserting groove, a second trapezoidal inserting strip is formed between the two adjacent inserting grooves, the first inserting strip can be correspondingly inserted into the second inserting groove, and the second inserting strip can be correspondingly inserted into the first inserting groove;
the joint plates are four and correspondingly welded in the middle of each outer wall of the joint pipe, the joint plates are U-shaped plates, inserting grooves III are formed in the left inner wall and the right inner wall of each joint plate, and a trapezoidal inserting strip III is formed between every two adjacent inserting grooves III;
the connecting structure is characterized in that the transverse connecting beams are provided with four parallel circular arrays arranged around the joint pipe, U-shaped transverse connecting plates are horizontally welded at the end parts of the transverse connecting beams close to the pipe joints, trapezoidal inserting grooves V are uniformly formed in the outer walls of the transverse connecting plates, gradient inserting strips V are formed between the adjacent inserting grooves V, the inserting strips III can be correspondingly inserted into the inserting grooves V of the side sections, and the inserting strips V of the side sections can be correspondingly inserted into the inserting grooves III.
Preferably, all be equipped with the overlap joint groove of rectangle on each outer wall of joint pipe, the vertical welding of port department that the splice plate is close to the joint pipe has the overlap joint board, the overlap joint board can the clearance overlap joint in the overlap joint groove.
Preferably, the outer wall of the lap joint plate is uniformly provided with a trapezoidal inserting groove four, a trapezoidal inserting strip four is formed between every two adjacent inserting grooves, the inserting strip four can be correspondingly inserted into the inserting groove five of the middle section, and the inserting strip five of the middle section can be correspondingly inserted into the inserting groove four.
Preferably, a plurality of first reinforcing ribs are welded on the left outer wall and the right outer wall of the joint plate.
Preferably, a plurality of second reinforcing ribs are uniformly welded on the outer wall of the lower side of the joint plate.
Preferably, the inner wall of the upper part of the inserting plate is symmetrically provided with triangular pressing grooves, and a pressing plate is inserted between the pair of pressing grooves in a sliding manner.
Compared with the prior art, the quick-mounting steel structure beam column joint has the following advantages:
1. and correspondingly inserting the splicing strips into the second splicing grooves, and correspondingly inserting the splicing strips into the first splicing grooves to realize the quick assembly of the longitudinal connecting pipes at the upper and lower ends of the joint pipe.
2. Correspondingly inserting the inserting strip III into the inserting groove V of the side section, and correspondingly inserting the inserting strip V of the side section into the inserting groove III; and correspondingly inserting the fourth inserting strip into the fifth inserting groove at the middle section, and correspondingly inserting the fifth inserting strip at the middle section into the fourth inserting groove, so that four transverse connecting beams are quickly assembled around the joint pipe.
In conclusion, the steel structure beam column joint capable of being quickly installed is simple in process, high in construction speed and good in joint performance.
Drawings
Fig. 1 is a schematic overall three-dimensional structure of the present invention.
Fig. 2 is a schematic structural view of the present invention as a whole.
Fig. 3 is a schematic structural view of the joint pipe of the present invention.
Fig. 4 is a schematic structural view of the longitudinal connecting pipe in the present invention.
Fig. 5 is a schematic view of the construction of the joint plate of the present invention.
Fig. 6 is a schematic structural view of the joint pipe and the joint plate according to the present invention after they are coupled.
Fig. 7 is a schematic structural view of a cross-web in the present invention.
Wherein:
10-a connector tube; 101-inserting a strip I; 10 a-a first plug groove; 10 b-a lap joint groove;
20-longitudinal connecting pipe; 201-inserting strip two; 20 a-a second plug groove;
30-a joint plate; 301-inserting strip three; 30 a-inserting groove III; 30 b-a crimping slot;
40-a lap plate; 401-inserting bar four; 40 a-inserting groove IV;
50-reinforcing rib I;
60-reinforcing rib II;
70-a transverse connection beam;
80-a transverse connection plate; 801-splicing bar five; 80 a-inserting groove five;
and (90) pressing a plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, a quick-mounting steel structure beam-column joint comprises a joint pipe 10, a longitudinal joint pipe 20, a joint plate 30 and a transverse joint beam 70, wherein:
the joint pipe 10 is a rectangular steel pipe and is vertically arranged, trapezoidal inserting grooves I10 a are symmetrically and uniformly arranged on the inner walls of two ends of the joint pipe 10, and trapezoidal inserting strips I101 are formed between the adjacent inserting grooves I10 a;
the longitudinal connecting pipe 20 is provided with a pair of connecting grooves which are symmetrically arranged at the upper side and the lower side of the joint pipe 10, trapezoidal inserting grooves two 20a are uniformly arranged on the outer wall of one end, close to the joint pipe 10, of the longitudinal connecting pipe 20, trapezoidal inserting strips two 201 are formed between the adjacent inserting grooves two 20a, the inserting strips one 101 can be correspondingly inserted into the inserting grooves two 20a, and the inserting strips two 201 can be correspondingly inserted into the inserting grooves one 10 a;
the joint plate 30 is provided with four joint plates which are correspondingly welded in the middle of each outer wall of the joint pipe 10, the joint plate 30 is a U-shaped plate, the left inner wall and the right inner wall of the joint plate are provided with three insertion grooves 30a, and a trapezoidal insertion strip III 301 is formed between the three insertion grooves 30 a;
the transverse connection beam 70 is provided with four parallel circular arrays around the joint pipe 10, the end part of the transverse connection beam 70 close to the joint pipe 10 is horizontally welded with a U-shaped transverse connection plate 80, trapezoidal inserting connection grooves five 80a are uniformly arranged on the outer wall of the transverse connection plate 80, gradient inserting connection strips five 801 are formed between the adjacent inserting connection grooves five 80a, the inserting connection strips three 301 can be correspondingly inserted into the inserting connection grooves five 80a of the side sections, and the inserting connection strips five 801 of the side sections can be correspondingly inserted into the inserting connection grooves three 30 a.
In this embodiment, each outer wall of the joint pipe 10 is provided with a rectangular overlapping groove 10b, the joint plate 30 is vertically welded with an overlapping plate 40 near the port of the joint pipe 10, and the overlapping plate 40 can be overlapped in the overlapping groove 10b with a gap. By the lap plate 40 being lapped in the lap groove 10b, the joint plate 30 can be provided with an upward supporting force by the lap plate 30 through the joint pipe 10.
In this embodiment, the outer wall of the overlapping plate 40 is uniformly provided with trapezoidal insertion grooves four 40a, and trapezoidal insertion strips four 401 are formed between adjacent insertion grooves four 40a, the insertion strips four 401 can be correspondingly inserted into the insertion grooves five 80a of the middle section, and the insertion strips five 801 of the middle section can be correspondingly inserted into the insertion grooves four 40 a. By the cooperation of the fourth plugging strip 401 with the fifth plugging groove 80a, and the cooperation of the fifth plugging strip 801 with the fourth plugging groove 40a, the structural connection reliability between the cross connection plate 70 and the joint plate 30 can be increased.
In this embodiment, a plurality of first reinforcing ribs 50 are welded to the left and right outer walls of the joint plate 30. The structural connection reliability between the joint plate 30 and the joint pipe 10 can be increased by adding the first reinforcing rib 50.
In this embodiment, a plurality of second reinforcing ribs 60 are uniformly welded to the outer wall of the lower side of the joint plate 30. The structural connection reliability between the joint plate 30 and the joint pipe 10 can be increased by additionally installing the second reinforcing rib 60.
In this embodiment, the upper inner wall of the insertion plate 30 is symmetrically provided with triangular press-fit grooves 30b, and the press-fit plate 90 is slidably inserted between the pair of press-fit grooves 30 b. The laminate plate 90 is attached to prevent the end portions of the cross member 70 from being tilted due to a downward load applied to the middle portion thereof.
When the quick-mounting steel structure beam-column joint is actually applied, the quick-mounting steel structure beam-column joint comprises the following mounting steps:
step 1: at the factory, the following welding work needs to be done: uniformly welding four joint plates 30 on the peripheral outer wall of the joint pipe 10; secondly, welding a lapping plate 40 at one end of each of the four joint plates 30; welding a transverse connection plate 80 at one end of each of the four transverse connection beams 70;
step 2: after the connector pipe is transported to the site, the first inserting strip 101 is correspondingly inserted into the second inserting groove 20a, and the second inserting strip 201 is correspondingly inserted into the first inserting groove 10a, so that the longitudinal connecting pipes 20 are quickly assembled at the upper end and the lower end of the connector pipe 10;
and 3, step 3: after the assembly line is transported to the site, the third insertion strip 301 is correspondingly inserted into the fifth insertion groove 80a of the side section, and the fifth insertion strip 801 of the side section is correspondingly inserted into the third insertion groove 30 a; correspondingly inserting the fourth inserting bar 401 into the fifth inserting groove 80a at the middle section, and correspondingly inserting the fifth inserting bar 801 at the middle section into the fourth inserting groove 40a, so as to quickly assemble four cross beams 70 around the joint pipe 10;
and 4, step 4: the four joint plates 30 are respectively inserted with a laminated plate 90 to form a beam-column whole.
The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or are equivalent to the scope of the invention are intended to be embraced therein.

Claims (6)

1. The utility model provides an install steel construction beam column fast and connect which characterized in that: including joint pipe (10), indulge and connect pipe (20), adapter plate (30) and crossbeam (70), wherein:
the joint pipe (10) is a rectangular steel pipe and is vertically arranged, trapezoidal inserting grooves I (10a) are symmetrically and uniformly arranged on the inner walls of two ends of the joint pipe (10), and trapezoidal inserting strips I (101) are formed between the adjacent inserting grooves I (10 a);
the longitudinal connecting pipe (20) is provided with a pair of longitudinal connecting pipes which are symmetrically arranged at the upper side and the lower side of the joint pipe (10), trapezoidal inserting grooves II (20a) are uniformly arranged on the outer wall of one end, close to the joint pipe (10), of each longitudinal connecting pipe (20), trapezoidal inserting strips II (201) are formed between the adjacent inserting grooves II (20a), the inserting strips I (101) can be correspondingly inserted into the inserting grooves II (20a), and the inserting strips II (201) can be correspondingly inserted into the inserting grooves I (10 a);
the connector plates (30) are four and correspondingly welded in the middle of each outer wall of the connector pipe (10), the connector plates (30) are U-shaped plates, inserting grooves III (30a) are formed in the left inner wall and the right inner wall of each connector plate, and trapezoidal inserting strips III (301) are formed between every two adjacent inserting grooves III (30 a);
the connecting device is characterized in that the transverse connecting beam (70) is provided with four and circular arrays around the joint pipe (10), the end part of the transverse connecting beam (70) close to the joint pipe (10) is horizontally welded with a U-shaped transverse connecting plate (80), trapezoidal inserting grooves five (80a) are uniformly arranged on the outer wall of the transverse connecting plate (80), and gradient inserting strips five (801) are formed between the adjacent inserting grooves five (80a), the inserting strips three (301) can be correspondingly inserted into the inserting grooves five (80a) of the side sections, and the inserting strips five (801) of the side sections can be correspondingly inserted into the inserting grooves three (30 a).
2. The quick install steel structural beam column joint of claim 1, wherein: all be equipped with the overlap joint groove (10b) of rectangle on each outer wall of joint pipe (10), the vertical welding of port department that joint board (30) are close to joint pipe (10) has overlap joint board (40), overlap joint board (40) can the clearance overlap joint in overlap joint groove (10 b).
3. The quick install steel structural beam column joint of claim 2, wherein: the outer wall of the lapping plate (40) is uniformly provided with four trapezoidal insertion grooves (40a), four trapezoidal insertion strips (401) are formed between the four adjacent insertion grooves (40a), the four insertion strips (401) can be correspondingly inserted into five insertion grooves (80a) of the middle section, and the five insertion strips (801) of the middle section can be correspondingly inserted into the four insertion grooves (40 a).
4. The quick install steel structural beam column joint of claim 1, wherein: a plurality of first reinforcing ribs (50) are welded on the left outer wall and the right outer wall of the joint plate (30).
5. The quick install steel structural beam column joint of claim 1, wherein: and a plurality of second reinforcing ribs (60) are uniformly welded on the outer wall of the lower side of the joint plate (30).
6. The quick install steel structural beam column joint of claim 1, wherein: triangular laminating grooves (30b) are symmetrically arranged on the left and right of the inner wall of the upper part of the insertion plate (30), and a laminating plate (90) is inserted between the pair of laminating grooves (30b) in a sliding manner.
CN202210202026.9A 2022-03-03 2022-03-03 Install steel construction beam column joint fast Pending CN114439108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210202026.9A CN114439108A (en) 2022-03-03 2022-03-03 Install steel construction beam column joint fast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210202026.9A CN114439108A (en) 2022-03-03 2022-03-03 Install steel construction beam column joint fast

Publications (1)

Publication Number Publication Date
CN114439108A true CN114439108A (en) 2022-05-06

Family

ID=81360086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210202026.9A Pending CN114439108A (en) 2022-03-03 2022-03-03 Install steel construction beam column joint fast

Country Status (1)

Country Link
CN (1) CN114439108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116180891A (en) * 2023-02-01 2023-05-30 江苏德力重工有限公司 Steel structure connecting equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108517961A (en) * 2018-05-25 2018-09-11 夏念涛 A kind of direct insertion installation node of quick assembling beam column of steel structure and its installation method
CN111809746A (en) * 2020-07-28 2020-10-23 西安建筑科技大学 Assembly joint adopting rivet connection
CN215926278U (en) * 2021-08-25 2022-03-01 南通市达欣工程股份有限公司 Quick pin-connected panel girder steel post node

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108517961A (en) * 2018-05-25 2018-09-11 夏念涛 A kind of direct insertion installation node of quick assembling beam column of steel structure and its installation method
CN111809746A (en) * 2020-07-28 2020-10-23 西安建筑科技大学 Assembly joint adopting rivet connection
CN215926278U (en) * 2021-08-25 2022-03-01 南通市达欣工程股份有限公司 Quick pin-connected panel girder steel post node

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116180891A (en) * 2023-02-01 2023-05-30 江苏德力重工有限公司 Steel structure connecting equipment
CN116180891B (en) * 2023-02-01 2024-02-13 呼伦贝尔市华晟钢结构制造有限公司 Steel structure connecting equipment

Similar Documents

Publication Publication Date Title
CN108425442B (en) Connection structure of concrete prefabricated wallboard and steel column and construction method thereof
CN111677115A (en) H-shaped steel beam and H-shaped steel column strong shaft assembled node and construction method
CN110258791B (en) Hinged nondestructive energy consumption prefabricated frame beam column node and construction method thereof
CN211257306U (en) Wedge-shaped clamping groove connection assembly type steel frame beam column joint
CN109629677B (en) Connecting node of modularized steel structure building connected by outer sleeve
JP4970060B2 (en) Plate-like panel for floor slab or lining plate using shape steel and method for producing the same
CN114439108A (en) Install steel construction beam column joint fast
CN110541478B (en) Connecting joint of connecting piece inserted steel pipe column and steel beam
WO2019077916A1 (en) Beam joining method, beam joining structure, and support member
CN114197289A (en) Assembling method of superposed beam type steel-concrete combined section
CN113073739B (en) Splicing structure of structural steel section
CN215483076U (en) Spring lock assembly, prefabricated part connecting node and assembled underground station
CN113846800B (en) Prefabricated profile steel horizontal beam and prefabricated floor slab connecting structure and connecting method
CN110886386B (en) Building square column joint connecting structure and connecting method thereof
CN114060042A (en) Binding structure of concrete pipe joint and construction method thereof
CN112681798A (en) End plate connecting node reinforcing structure and construction method thereof
JP5274735B1 (en) Steel frame opening reinforcement structure
CN215168014U (en) Shear wall template support piece and strutting arrangement
CN211948885U (en) On-spot rigid connection node of steel construction box cross-section
CN219734987U (en) H-shaped steel easy to install
CN217557194U (en) Connecting module of exhibition steel structure system
CN219508845U (en) Built-in type steel square pipe column and steel structure beam connecting device
CN217896745U (en) Welding-free H-shaped steel structural member
CN214738843U (en) Connecting node structure of concrete column and beam
CN215165638U (en) Assembled angle brace

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20220506

RJ01 Rejection of invention patent application after publication