Full-bolt connection joint of prefabricated concrete beam and concrete column or concrete main beam

Abstract

The utility model discloses a full bolt connection node of a prefabricated concrete beam and a concrete column or a concrete main beam, which is used for connecting two building components, one building component is the prefabricated concrete beam, the other building component is the concrete column or the concrete main beam, and the full bolt connection node comprises a first embedded part and a second embedded part which are fixedly arranged on the two building components respectively, a steel connecting piece is arranged between the first embedded part and the second embedded part; the steel connecting piece comprises a middle connecting body, a first connecting lug and a second connecting lug, the first connecting lug and the second connecting lug are fixedly arranged at the two ends of the middle connecting body respectively, and a first penetrating assembly is fixedly installed between the first connecting lug and the first embedded part in a penetrating mode. And a second cross-under assembly and / or a threaded connection assembly are / is arranged between the second connecting lug and the second embedded part. The connecting structure is simple in site construction, beneficial to improving connecting efficiency, reliable in connection and beneficial to keeping connecting strength for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam. Background Art

[0002] Prefabricated buildings, also known as prefabricated buildings, modular buildings or industrialized buildings, are built by prefabricating building components or modules in factories and then assembling and installing them on site, so as to achieve a fast, high-speed and repeatable construction process. The connection between building components in prefabricated buildings, such as the connection between prefabricated concrete beams and concrete columns or concrete main beams, is an important part of on-site assembly work. The strength of the connection directly affects the force transmission performance and service life of the building.

[0003] Traditional prefabricated concrete beams and concrete columns or concrete main beams are assembled and connected, such as Fig.12 As shown, steel bars are pre-embedded in two connected building components. During assembly, a steel sleeve is first passed through one of the steel bars, and then the steel sleeve is threadedly connected to the other steel bar through an internal thread. Finally, bonding slurry is injected into the steel sleeve from the grouting port. When the bonding slurry overflows at the exhaust port, the surface steel sleeve is filled with the bonding slurry. After the bonding slurry reaches a certain strength, force transmission between the steel bars and the steel sleeve on both sides is realized.

[0004] This type of connection structure is complex to construct on site, the bonding slurry is not easy to fill the inner cavity of the steel sleeve, the bonding slurry is not reliable in transmitting force between the steel bar and the steel sleeve, and the bonding slurry has the problem of durable aging, which affects the life of the building structure. Therefore, an improved connection structure is needed to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam, which is simple to construct on site, is conducive to improving connection efficiency, has reliable connection, and is conducive to maintaining connection strength for a long time.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a fully bolted connection node between a precast concrete beam and a concrete column or a concrete main beam, which is used to connect two building components, one of which is a precast concrete beam and the other is a concrete column or a concrete main beam, including a first embedded part and a second embedded part respectively fixedly arranged on the two building components, a steel connecting part is provided between the first embedded part and the second embedded part; the steel connecting part includes an intermediate connecting body and a first connecting ear and a second connecting ear respectively fixedly arranged at both ends of the intermediate connecting body, a first connecting assembly is fixedly installed between the first connecting ear and the first embedded part, and a second connecting assembly and / or a threaded connecting assembly is provided between the second connecting ear and the second embedded part.

[0007] As a preferred technical solution, the first embedded part is an embedded sleeve with an internal thread, and the first threading component includes a first threading screw that passes through the first connecting ear and is threadedly connected to the first embedded part, and the first threading screw is provided with a first fastening structure on both sides of the first connecting ear.

[0008] As a preferred technical solution, the first embedded part is an embedded steel bar with an external thread at the outer end, the first embedded part is arranged through the first connecting ear, and the first fastening structures are respectively provided on both sides of the first connecting ear of the first embedded part, and the first embedded part and the two first fastening structures also serve as the first threading component.

[0009] As a preferred technical solution, the second embedded part is an embedded sleeve with an internal thread, and a second threading component is provided between the second connecting ear and the second embedded part; the second threading component includes a second threading screw that passes through the second connecting ear and is threadedly connected to the second embedded part, and second fastening structures are respectively provided on both sides of the first connecting ear on the second threading screw.

[0010] As a preferred technical solution, the second embedded part is an embedded sleeve with an internal thread, and a threaded connection assembly is provided between the second connecting ear and the second embedded part; the threaded connection assembly includes a second connecting screw that is threadedly connected to the second embedded part and the second connecting ear respectively, and the spiral directions of the thread on the second connecting screw connected to the second embedded part and the thread connected to the second connecting ear are arranged in opposite directions.

[0011] As a preferred technical solution, the second embedded part is an embedded steel bar with an external thread at the outer end, and a second threading component is provided between the second connecting ear and the second embedded part; the second embedded part is arranged to pass through the second connecting ear, and second fastening structures are respectively provided on both sides of the second connecting ear on the second embedded part, and the second embedded part and the two second fastening structures also serve as the second threading component.

[0012] As a preferred technical solution, the second embedded part is an embedded steel bar with an external thread on the outer end, and a second threading component and a threaded connection component are provided between the second connecting ear and the second embedded part; the threaded connection component includes a threaded connection tube threadedly connected to the second embedded part, and the second threading component includes a second threading screw that passes through the second connecting ear and is threadedly connected to the threaded connection tube, and the second threading screw is provided with second fastening structures on both sides of the second connecting ear.

[0013] As a preferred technical solution, the first connecting ear and the second connecting ear are respectively arranged in a column shape, and the intermediate connecting body is fixedly connected to the outer circumferential surface of the first connecting ear and the second connecting ear respectively.

[0014] Due to the adoption of the above technical solution, a fully bolted connection node between a precast concrete beam and a concrete column or a concrete main beam is provided, which is used to connect two building components, wherein one of the building components is a precast concrete beam and the other of the building components is a concrete column or a concrete main beam, and includes a first embedded part and a second embedded part respectively fixedly arranged on the two building components, a steel connecting part is provided between the first embedded part and the second embedded part; the steel connecting part includes an intermediate connecting body and a first connecting ear and a second connecting ear respectively fixedly arranged at both ends of the intermediate connecting body, a first threading component is fixedly installed between the first connecting ear and the first embedded part, and a second threading component and / or a threaded connecting component is provided between the second connecting ear and the second embedded part. The utility model is based on the embedded parts respectively arranged on the two connected building components. During the on-site construction, a steel connector with connecting ears at both ends is used. One end is connected to one of the embedded parts through threading, and the other end is connected to the other embedded part through threading, threading, or a mixed connection of threading and threading, so as to finally realize the connection between the two building components. The connection process no longer requires pouring bonding slurry, nor does it require waiting for the bonding slurry to solidify. The on-site construction is simple and is conducive to improving the connection efficiency. Both threading and threading are rigid connections, with reliable force transmission and no aging problem. Therefore, the connection is reliable and is conducive to maintaining the connection strength for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0017] Figure 2 yes Figure 1 An enlarged structural diagram of one of the steel connectors;

[0018] Figure 3 yes Figure 2 Schematic diagram of AA amplification structure;

[0019] Figure 4 yes Figure 3 A schematic diagram of the structure when the middle connector adopts a square groove cross-section shape;

[0020] Figure 5 yes Figure 3 A schematic diagram of the structure when the middle connector adopts a semicircular arc cross-section shape;

[0021] Figure 6 yes Figure 3 A schematic diagram of the structure when the middle connector adopts an L-shaped cross-section;

[0022] Figure 7 It is a schematic diagram of the corner and middle positions of steel connectors when building components are connected;

[0023] Figure 8 It is a structural schematic diagram of the second embodiment of the utility model;

[0024] Fig. 9 It is a structural schematic diagram of the third embodiment of the utility model;

[0025] Fig.10 It is a structural schematic diagram of the fourth embodiment of the utility model;

[0026] Fig.11 It is a structural schematic diagram of the fifth embodiment of the utility model;

[0027] Fig.12 It is a schematic diagram of the structure of the existing connection method of pouring bonding slurry in the steel sleeve.

[0028] In the figure: 1-first embedded part; 2-second embedded part; 3-steel connecting part; 31-first connecting ear; 32-second connecting ear; 33-intermediate connecting body; 4-first threading assembly; 41-first threading screw; 42-first fastening structure; 5-second threading assembly; 51-second threading screw; 52-second fastening structure; 6-threaded connection assembly; 61-second connecting screw; 62-threaded connection cylinder; 8-steel sleeve; 81-grouting port; 82-exhaust port; 83-adhesive slurry; 9-building component. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, exemplary embodiments of the present invention are described only by way of illustration. It is undoubted that one of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0030] like Figure 1 ,as well as Figures 8 to 11As shown, a fully bolted connection node between a precast concrete beam and a concrete column or a concrete main beam is used to connect two building components 9, one of which is a precast concrete beam and the other is a concrete column or a concrete main beam, including a first embedded part 1 and a second embedded part 2 respectively fixedly arranged on the two building components 9, and a steel connecting part 3 is arranged between the first embedded part 1 and the second embedded part 2. The functional effects achieved are the same regardless of which building component 9 the first embedded part 1 and the second embedded part 2 are respectively arranged on, and whether one of the building components 9 is a concrete column or a concrete main beam, and no limitation is made here. In the embodiments listed, only the first embedded part 1 is arranged on the precast concrete beam and the second embedded part 2 is arranged on the concrete column for illustration.

[0031] like Figure 2 As shown, the steel connector 3 includes an intermediate connector 33 and a first connecting ear 31 and a second connecting ear 32 fixedly disposed at both ends of the intermediate connector 33. Figure 1 ,as well as Figures 8 to 11 As shown, a first penetration component 4 is fixedly installed between the first connecting ear 31 and the first embedded part 1 , and a second penetration component 5 and / or a threaded connection component 6 is provided between the second connecting ear 32 and the second embedded part 2 .

[0032] The two building components 9 are connected by the steel connector 3, and one end of the steel connector 3 is connected to the first embedded part 1 by threading, and the other end is connected to the second embedded part 2 by threading, threading, or a combination of threading and threading, so as to realize the connection of the two building components 9. The connection process no longer requires pouring bonding slurry, nor does it require waiting for the bonding slurry to cure. The on-site construction is simple, which is conducive to improving the connection efficiency. Both threading and threading are rigid connections, with reliable force transmission and no aging problem. Therefore, the connection is reliable, which is conducive to maintaining the connection strength for a long time.

[0033] Preferably, the first connecting ear 31 and the second connecting ear 32 are respectively arranged in a cylindrical shape, and the cylindrical connecting ears can form better bending strength. The columnar shape can be cylindrical, rectangular or polygonal, etc., which is not limited here. The accompanying drawings only illustrate it with a cylindrical shape; the intermediate connecting body 33 is respectively fixedly connected to the outer circumferential surface of the first connecting ear 31 and the second connecting ear 32, so that while the first connecting ear 31 and the second connecting ear 32 are fixedly connected, the space between the first connecting ear 31 and the second connecting ear 32 is avoided, so as to facilitate the connection operation of the first connecting component 4 between the first connecting ear 31 and the first embedded part 1 at the beginning of construction.

[0034] Among them, the two connecting ears and the intermediate connecting body 33 can be fixed by welding or integrally cast, which is not limited here. The opening on the first connecting ear 31 is a through hole that can be threaded, so that at the beginning of construction, there can be axial and circumferential freedom of relative movement between the first connecting ear 31 and the first threading component 4, which is convenient for the subsequent connection operation of the second threading component 5 and / or the threaded connection component 6 at the second connecting ear 52; and whether the opening on the second connecting ear 32 is a through hole or a threaded hole is specifically set depending on whether a threading connection or a threaded connection is adopted, which will be specifically described in the subsequent embodiments. The cross-sectional shape of the intermediate connecting body 33 can be determined according to the following examples: Figure 7 For example, when it is in the middle position, you can use Figure 3 The large semi-arc shown, Figure 4 The square groove shape or other polygonal groove shape shown in the figure can be used as shown in the figure. Figure 5 The semicircular shape shown, Figure 6 The L-shape shown, etc., is not limited to this option of the present invention.

[0035] Both the first embedded part 1 and the second embedded part 2 can be in the form of an embedded sleeve with internal threads or an embedded steel bar with external threads at the outer end. When the embedded sleeve is an embedded sleeve with internal threads, the inner end of the embedded sleeve can be pre-threadedly connected with the concrete steel bar embedded in the building component 9 to improve the connection strength between the embedded sleeve and the corresponding building component 9; when the embedded steel bar is an embedded steel bar with external threads at the outer end, the embedded steel bar in the concrete of the building component 9 can be directly used to achieve the connection.

[0036] The specific implementation of the present utility model is further described below in conjunction with the embodiments.

[0037] Embodiment 1: Figures 1 to 7 As shown together, in this embodiment, the first embedded part 1 and the second embedded part 2 are both embedded sleeves with internal threads. A second connecting component 5 is provided between the second connecting ear 32 and the second embedded part 2, that is, the second connecting ear 32 and the second embedded part 2 are connected by connecting.

[0038] The first threading assembly 4 includes a first threading screw 41 that passes through the first connection ear 31 and is threadedly connected to the first embedded part 1, and the first threading screw 41 is provided with first fastening structures 42 on both sides of the first connection ear 31. The second threading assembly 5 includes a second threading screw 51 that passes through the second connection ear 32 and is threadedly connected to the second embedded part 2, and the second threading screw 51 is provided with second fastening structures 52 on both sides of the first connection ear 31.

[0039] During construction, the first threading screw 41 is passed through the first connecting ear 31 and threadedly connected to the first embedded part 1, and the second threading screw 51 is passed through the second connecting ear 32 and threadedly connected to the first embedded part 1, and then the first fastening structure 42 and the second fastening structure 52 are used to fasten the corresponding screws to the steel connecting part 3 respectively, so as to form a fully bolted rigid connection.

[0040] The opening on the second connecting ear 32 is a through hole through which the corresponding screw can pass. The first fastening structure 42 can be realized by a bolt head integrally provided on the first threading screw 41 on the side of the first connecting ear 31 away from the first embedded part 1 and a fastening nut installed on the first threading screw 41 on the side close to the first embedded part 1, or can be realized by fastening nuts installed on the first threading screw 41 on both sides of the first connecting ear 31, which is not limited here. When a bolt head and a fastening nut structure are used, during construction, the main construction method is to pass the first through-connecting screw 41 through the first connecting ear 31 and threadedly connect it to the first embedded part 1, and after the first through-connecting screw 41 is threadedly connected to the first embedded part 1, the fastening nut is rotated toward the first connecting ear 31 until it and the bolt head clamp the first connecting ear 31, and the fastening operation is completed; and when two fastening nut structures are used, during construction, in addition to the above-mentioned construction method, a construction method can also be used in which the first through-connecting screw 41 is pre-threadedly connected to the first embedded part 1, and then the first connecting ear 31 is installed on the first through-connecting screw 41 and then fastened. During tightening, the two fastening nuts are rotated toward the first connecting ear 31 until the two clamp it, and the fastening operation is completed.

[0041] The second fastening structure 52 is similar to the above and will not be described in detail here.

[0042] Embodiment 2: Figure 8 As shown, the first embedded part 1 is an embedded steel bar with an external thread on the outer end, and the second embedded parts 2 are embedded sleeves with internal threads. A second threading component 5 is provided between the second connecting ear 32 and the second embedded part 2, that is, the second connecting ear 32 and the second embedded part 2 are threadedly connected.

[0043] The second threading assembly 5 of this embodiment includes a second threading screw 51 that penetrates the second connecting ear 32 and is threadedly connected to the second embedded part 2. The second threading screw 51 is provided with second fastening structures 52 on both sides of the first connecting ear 31. The structural principle of the second threading assembly 5 is the same as that of the first embodiment, and will not be repeated here.

[0044] In this embodiment, the first embedded part 1 is arranged through the first connecting ear 31, and the first fastening structures 42 are respectively provided on both sides of the first connecting ear 31 of the first embedded part 1. The first embedded part 1 and the two first fastening structures 42 also serve as the first connection component 4.

[0045] During construction, the first connecting ear 31 is installed on the first embedded part 1, the second threading screw 51 is passed through the second connecting ear 32 and threadedly connected to the second embedded part 2, and then the corresponding screw is fastened to the steel connecting part 3 by using the first fastening structure 42 and the second fastening structure 52, respectively, so as to form a full bolt rigid connection. Among them, the opening on the second connecting ear 32 is a through hole through which the corresponding screw can pass. The fastening principle of the second fastening structure 52 is the same as that of the first embodiment, and will not be repeated here. Based on the first connecting ear 31 of this embodiment, it is installed on the first embedded part 1, so the first fastening structure 42 of this embodiment is mainly realized by fastening nuts installed on both sides of the first connecting ear 31 on the first embedded part 1.

[0046] Embodiment 3: Fig. 9 As shown, the first embedded part 1 is an embedded steel bar with an external thread at the outer end, the second embedded part 2 is an embedded sleeve with an internal thread, and a threaded connection component 6 is provided between the second connecting ear 32 and the second embedded part 2, that is, the second connecting ear 32 is threadedly connected to the second embedded part 2.

[0047] In this embodiment, the first embedded part 1 is arranged through the first connecting ear 31, and the first embedded part 1 is provided with first fastening structures 42 on both sides of the first connecting ear 31, and the first embedded part 1 and the two first fastening structures 42 also serve as the first connecting component 4. The structural principle of the first connecting component 4 is the same as that of the second embodiment, and will not be repeated here.

[0048] The threaded connection assembly 6 of this embodiment includes a second connection screw 61 threadedly connected to the second embedded part 2 and the second connection ear 32, respectively, and the spiral direction of the thread connected to the second embedded part 2 and the thread connected to the second connection ear 32 on the second connection screw 61 is opposite. In this structure, the opening on the second connection ear 32 is a threaded hole that can be threadedly connected to the second connection screw 61.

[0049] During construction, the first connecting ear 31 is installed on the first embedded part 1, and then the second connecting screw 61 is used to thread and fasten the second embedded part 2 and the second connecting ear 32. This fastening process is to rotate the second connecting screw 61 and the steel connecting part 3 to make the second connecting ear 32 close to the second embedded part 2 until the second connecting screw 61 and the steel connecting part 3 cannot be rotated. The axial and circumferential freedom provided by the initial connection between the first connecting ear 31 and the first embedded part 1 does not hinder the completion of the above fastening process; then the first fastening structure 42 is used to fasten the first embedded part 1 and the steel structure to form a fully bolted rigid connection.

[0050] Embodiment 4: Fig.10 As shown, the first embedded part 1 and the second embedded part 2 are both embedded steel bars with external threads at the outer ends, and a second threading component 5 is provided between the second connecting ear 32 and the second embedded part 2, that is, the second connecting ear 32 and the second embedded part 2 are threadedly connected.

[0051] The first embedded part 1 is arranged through the first connecting ear 31, and the first embedded part 1 is provided with first fastening structures 42 on both sides of the first connecting ear 31, and the first embedded part 1 and the two first fastening structures 42 also serve as the first through-connection component 4. The second embedded part 2 is arranged through the second connecting ear 32, and the second embedded part 2 is provided with second fastening structures 52 on both sides of the second connecting ear 32, and the second embedded part 2 and the two second fastening structures 52 also serve as the second through-connection component 5. Therefore, the first through-connection component 4 and the second through-connection component 5 both form the same structural principle as the first through-connection component 4 in the second embodiment, and the construction thereof is easily obtained by those skilled in the art in combination with the structural principle, and will not be repeated here.

[0052] Embodiment 5: Fig.11 As shown, the first embedded part 1 and the second embedded part 2 are both embedded steel bars with external threads at the outer ends, and a second threading component 5 and a threaded connection component 6 are provided between the second connecting ear 32 and the second embedded part 2, that is, the second connecting ear 32 and the second embedded part 2 adopt a connection method combining threading and threading.

[0053] In this embodiment, the first embedded part 1 is arranged through the first connecting ear 31, and the first embedded part 1 is provided with first fastening structures 42 on both sides of the first connecting ear 31, and the first embedded part 1 and the two first fastening structures 42 also serve as the first connecting component 4. The structural principle of the first connecting component 4 is the same as that of the second embodiment, and will not be repeated here.

[0054] The threaded connection assembly 6 in this embodiment includes a threaded connection tube 62 threadedly connected to the second embedded part 2, and the second threading assembly 5 includes a second threading screw 51 that passes through the second connecting ear 32 and is threadedly connected to the threaded connection tube 62, and the second threading screw 51 is provided with second fastening structures 52 on both sides of the second connecting ear 32.

[0055] During construction, the first connecting ear 31 is installed on the first embedded part 1, the threaded connection tube 62 is threadedly connected to the second embedded part 2, and then the second connection component 5 is threadedly connected to the threaded connection tube 62 through the second connecting ear 32, and finally the corresponding screws of the second fastening structure 52 and the first fastening structure 42 are used to fasten the steel structure, that is, a full bolt rigid connection is formed. Among them, the opening on the second connecting ear 32 is also a through hole that can pass through the second connection screw 51. The second fastening structure 52 can be in the form of a bolt head and a fastening nut, or in the form of two fastening nuts, which is not limited here.

[0056] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, such as different combinations of the connection forms between the steel connector 3 and the two embedded parts, and the transformation of the equivalent structure of the steel connector 3. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fully bolted connection node between a precast concrete beam and a concrete column or a concrete main beam, used to connect two building components, one of which is a precast concrete beam and the other is a concrete column or a concrete main beam, characterized in that: It includes a first embedded part and a second embedded part respectively fixedly arranged on the two building components, and a steel connecting part is arranged between the first embedded part and the second embedded part; the steel connecting part includes an intermediate connecting body and a first connecting ear and a second connecting ear respectively fixedly arranged at both ends of the intermediate connecting body, a first threading component is fixedly installed between the first connecting ear and the first embedded part, and a second threading component and / or a threaded connecting component is arranged between the second connecting ear and the second embedded part.

2. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The first embedded part is an embedded sleeve with an internal thread, the first connecting component includes a first connecting screw that passes through the first connecting ear and is threadedly connected to the first embedded part, and the first connecting screw is provided with first fastening structures on both sides of the first connecting ear.

3. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The first embedded part is an embedded steel bar with an external thread at the outer end. The first embedded part is arranged through the first connecting ear. The first fastening structures are respectively provided on both sides of the first connecting ear of the first embedded part. The first embedded part and the two first fastening structures also serve as the first connection component.

4. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The second embedded part is an embedded sleeve with an internal thread, and a second threading component is provided between the second connecting ear and the second embedded part; the second threading component includes a second threading screw that passes through the second connecting ear and is threadedly connected to the second embedded part, and second fastening structures are respectively provided on both sides of the first connecting ear on the second threading screw.

5. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The second embedded part is an embedded sleeve with an internal thread, and a threaded connection assembly is provided between the second connecting ear and the second embedded part; the threaded connection assembly includes a second connecting screw that is threadedly connected to the second embedded part and the second connecting ear respectively, and the spiral directions of the thread on the second connecting screw connected to the second embedded part and the thread connected to the second connecting ear are arranged in opposite directions.

6. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The second embedded part is an embedded steel bar with an external thread at the outer end, and a second threading component is provided between the second connecting ear and the second embedded part; the second embedded part is arranged to pass through the second connecting ear, and second fastening structures are respectively provided on both sides of the second connecting ear on the second embedded part, and the second embedded part and the two second fastening structures also serve as the second threading component.

7. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The second embedded part is an embedded steel bar with an external thread at the outer end, and a second threading component and a threaded connection component are provided between the second connecting ear and the second embedded part; the threaded connection component includes a threaded connection tube threadedly connected to the second embedded part, and the second threading component includes a second threading screw that passes through the second connecting ear and is threadedly connected to the threaded connection tube, and the second threading screw is provided with second fastening structures on both sides of the second connecting ear.

8. The fully bolted connection node between a prefabricated concrete beam and a concrete column or a concrete main beam as claimed in claim 1, characterized in that: The first connecting ear and the second connecting ear are respectively arranged in a column shape, and the intermediate connecting body is respectively fixedly connected to the outer circumference of the first connecting ear and the second connecting ear.

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