CN217840300U - Support-free fabricated concrete structure connecting node unit - Google Patents

Abstract

The utility model provides an exempt from to support assembled concrete structure connected node unit relates to building technical field, has solved the technical problem that the installation of the precast concrete beam column that exists needs a large amount of scaffolds among the prior art. The device comprises an upright post structure and a cross beam structure, wherein the upright post structure and the cross beam structure are vertically arranged, the top of the upright post structure is in threaded connection with the cross beam structure, two opposite cross beam structures are connected through a connecting screw rod, and two adjacent upright post structures are in threaded connection; the upright post connecting piece and the upright post shearing resistant piece are both fixedly connected with the bottom of the upright post, the upright post connecting piece on one upright post structure is in threaded connection with the long connecting rod of the other upright post structure, and the upright post shearing resistant piece on one upright post structure is in threaded connection with the short connecting rod of the other upright post structure; the beam connecting piece is in threaded connection with the top of the stand column, and the beam connecting piece on one beam structure is connected with the beam connecting piece on the other beam structure through a connecting screw rod.

Description

Support-free fabricated concrete structure connecting node unit

Technical Field

The utility model belongs to the technical field of the building technique and specifically relates to a exempt from to support assembled concrete structure connected node unit is related to.

Background

In the current specification of a national building standard design drawing set C310-1 & ltprefabricated concrete structure connection node structure & gt, a large number of scaffolds are required for supporting the installation of a prefabricated concrete beam column, the connection mode of a grouting sleeve requires high production precision and construction precision, the situation that hole positions cannot be aligned frequently occurs on site, the connection strength cannot be visually reflected due to the wet effect, and the construction quality cannot be guaranteed. And can't realize installing several stories of building in succession, must the one deck just can up install after finishing, installation time cycle is long simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a exempt from to support assembled concrete structure connected node unit to the installation of the precast concrete beam post that exists needs a large amount of scaffold's technical problem among the solution prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a support-free fabricated concrete structure connection node unit, which comprises a stand column structure and a beam structure, wherein the stand column structure is vertically arranged with the beam structure, the top of the stand column structure is in threaded connection with the beam structure, two opposite beam structures are connected through a connecting screw rod, and two adjacent stand column structures are in threaded connection;

the upright post structure comprises upright posts, upright post connecting pieces, upright post shearing resistant pieces, long connecting rods and short connecting rods, wherein the upright post connecting pieces and the upright post shearing resistant pieces are fixedly connected with the bottoms of the upright posts, the long connecting rods and the short connecting rods are fixedly connected with the tops of the upright posts, the upright post connecting piece on one upright post structure is in threaded connection with the long connecting rod of the other upright post structure, and the upright post shearing resistant pieces on one upright post structure are in threaded connection with the short connecting rods of the other upright post structure;

the beam structure comprises a beam and a beam connecting piece, the beam connecting piece is fixedly connected with the end part of the beam, the beam connecting piece is in threaded connection with the top of the stand column, and one of the beam connecting piece and the other beam connecting piece is connected with the beam structure through the connecting screw rod.

Optionally, the pillar connector includes a first pouring portion, a first connecting portion and a first shear bar, the first pouring portion and the first connecting portion are fixedly connected, an end portion of the first shear bar is fixedly connected with the first connecting portion, the first pouring portion and the first shear bar are both located in the pillar and fixed through concrete pouring, an outer wall of the first connecting portion is attached to the pillar, and the first connecting portion is in threaded connection with a free end of the long connecting rod.

Optionally, the upright shear resistant member comprises two frame members, two first connecting plates, two second connecting plates and two connecting plates, the number of the frame members and the number of the second connecting plates are two, the two frame members are fixedly connected through the connecting plates, the bottoms of the two frame members are fixedly connected with the first connecting plates, one ends of the second connecting plates can be inserted into the frame members, the second connecting plates are fixedly connected with the frame members, the second connecting plates are located in the top areas of the frame members, the top areas of the second connecting plates and the frame members are located in the upright posts and fixed through concrete pouring, and the free ends of the first connecting plates and the short connecting rods are in threaded connection.

Optionally, the crossbeam connecting piece includes first crossbeam connecting piece and second crossbeam connecting piece, first crossbeam connecting piece with second crossbeam connecting piece is located respectively two end angles of crossbeam, first crossbeam connecting piece with the top threaded connection of stand, one structural first crossbeam connecting piece and another of crossbeam structural first crossbeam connecting piece passes through connecting screw is connected, one structural second crossbeam connecting piece and another of crossbeam structural second crossbeam connecting piece passes through connecting screw is connected.

Optionally, the first beam connector includes a second pouring portion, a second connecting portion, a second shear rod and a column connecting portion, the second pouring portion is fixedly connected with the second connecting portion, an end portion of the second shear rod is fixedly connected with the second pouring portion, the column connecting portion is located on the same side of the second pouring portion and the second connecting portion, the column connecting portion is fixedly connected with the second connecting portion, the second pouring portion and the second shear rod are both located in the beam and fixed through concrete pouring, an outer wall of the second connecting portion is attached to the beam, and the column connecting portion is in threaded connection with a top portion of the column.

Optionally, the second beam connector includes a third pouring portion, a third connecting portion and a third shear bar, the third pouring portion and the third connecting portion are fixedly connected, an end of the third shear bar is fixedly connected with the third pouring portion, and the third pouring portion and the third shear bar are both located in the beam and fixed by concrete pouring.

Optionally, a plurality of connecting holes are formed in the top of the upright column, and the beam connecting piece is connected with the connecting holes through bolts.

Optionally, the number of the long connecting rods is multiple, and the multiple long connecting rods are connected through stirrups.

The utility model provides a support-free fabricated concrete structure connected node unit, before carrying out precast concrete beam column and buildding, need earlier with the stand connecting piece, the stand shear resistant, long connecting rod and short connecting rod are connected on the stand, and solidify into the stand structure through the concrete, also need connect the crossbeam connecting piece on the crossbeam, and solidify into crossbeam structure through the concrete, when carrying out precast concrete beam column and buildding, only need to pass through threaded connection with crossbeam structure and stand structure, need not with the help of a large amount of scaffolds, concrete installation operation is as, place crossbeam structure and stand structure perpendicularly earlier, again with the top threaded connection of crossbeam connecting piece and stand structure, two relative crossbeam structures rethread connecting screw thread connection simultaneously, when to two adjacent stand structure installations, with the structural long connecting rod of a stand and the structural stand connecting piece threaded connection of another stand, again with the structural short connecting rod of a stand and the structural stand shear resistant threaded connection of another stand, thereby accomplish the buildding of precast concrete beam column, the screwed connection industry of dry-type scaffold construction has been realized, need not with the help of the installation of existing precast concrete beam column among the prior art, the technical problem of a large amount of scaffold that the installation needs is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a connection node unit of a support-free fabricated concrete structure according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another side surface of a support-free fabricated concrete structure connection node unit provided in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a support-free fabricated concrete structure connection node unit provided by an embodiment of the present invention, which is without columns and beams;

fig. 4 is a schematic structural diagram of a beam structure of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a column structure of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram illustrating a connection between two second beam connectors of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram illustrating a connection of two first beam connectors of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a column connector of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 9 is a schematic structural view of another side of the column connecting member of the support-free fabricated concrete structure connecting node unit according to the embodiment of the present invention;

fig. 10 is a schematic structural view illustrating a column shear resistant member of a connection node unit of a support-free fabricated concrete structure according to an embodiment of the present invention;

fig. 11 is a schematic structural view of another side of a column shear block of a free-standing prefabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 12 is a schematic structural view of another side surface of a column shear resistant member of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a first beam connector of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

figure 14 is a schematic structural view of the other side of the first beam connector of the support-free fabricated concrete structure connection node unit according to the embodiment of the present invention;

figure 15 is a schematic structural view of the other side of the first beam connector of the support-free fabricated concrete structure connection node unit according to the embodiment of the present invention;

figure 16 is a schematic structural view of a second beam connector of a support-free fabricated concrete structure connection node unit according to an embodiment of the present invention;

figure 17 is a schematic structural view of the other side of the second beam connector of the support-free fabricated concrete structure connection node unit according to the embodiment of the present invention;

in the figure 1, a column structure; 11. a column; 111. connecting holes; 12. a column connector; 121. a first pouring section; 1211. a first back plate; 1212. a first support plate; 122. a first connection portion; 1221. a first base plate; 1222. a second back plate; 1223. a second support plate; 1224. a first top plate; 123. a first shear bar; 13. a column shear resistant member; 131. a frame type frame; 132. a first connecting plate; 133. a second connecting plate; 134. connecting sheets; 14. a long connecting rod; 15. a short connecting rod; 2. a beam structure; 21. a cross beam; 22. a beam connector; 221. a first beam connector; 2211. a second pouring section; 22111. a third back plate; 22112. a third support plate; 2212. a second connecting portion; 22121. a second base plate; 22122. a second top plate; 22123. a fourth back plate; 22124. a U-shaped frame; 2213. a second shear resistant bar; 2214. a column connecting portion; 22141. mounting a plate; 22142. a fourth support plate; 222. a second beam connector; 2221. a third pouring section; 2222. a third connecting part; 22221. parallel plates; 22222. a long top plate; 2223. a third shear bar; 23. connecting a screw rod; 3. and (5) hooping.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Example 1:

the utility model provides a support-free fabricated concrete structure connection node unit, including upright post structure 1 and crossbeam structure 2, wherein, upright post structure 1 sets up with crossbeam structure 2 is perpendicular and the top of upright post structure 1 and crossbeam structure 2 threaded connection, can select upright post structure 1 to be connected with several crossbeam structures 2 as required, two relative crossbeam structures 2 are connected through connecting screw 23, there is the interval between two relative crossbeam structures 2, two adjacent upright post structures 1 threaded connection, the top of an upright post structure 1 and the bottom threaded connection of another upright post structure 1;

the upright post structure 1 comprises upright posts 11, upright post connecting pieces 12, upright post shearing-resistant pieces 13, long connecting rods 14 and short connecting rods 15, wherein the upright post connecting pieces 12 and the upright post shearing-resistant pieces 13 are fixedly connected with the bottoms of the upright posts 11, the long connecting rods 14 and the short connecting rods 15 are fixedly connected with the tops of the upright posts 11, an interval exists between every two adjacent upright posts 11, the upright post connecting pieces 12 on one upright post structure 1 are in threaded connection with the long connecting rods 14 of the other upright post structure 1, and the upright post shearing-resistant pieces 13 on one upright post structure 1 are in threaded connection with the short connecting rods 15 of the other upright post structure 1;

the beam structures 2 comprise beams 21 and beam connectors 22, the beam connectors 22 are fixedly connected with the ends of the beams 21, the beam connectors 22 are in threaded connection with the tops of the columns 11, and the beam connector 22 on one beam structure 2 is connected with the beam connector 22 on the other beam structure 2 through a connecting screw 23. The utility model provides a support-free fabricated concrete structure connected node unit, before carrying out precast concrete beam column and buildding, need earlier stand connecting piece 12, stand shear 13, long connecting rod 14 and short connecting rod 15 are connected on stand 11, and solidify into stand structure 1 through the concrete, also need connect crossbeam connecting piece 22 on crossbeam 21, and solidify into crossbeam structure 2 through the concrete, when carrying out precast concrete beam column and buildding, only need to pass through threaded connection crossbeam structure 2 and stand structure 1, need not with the help of a large amount of scaffolds, concrete installation operation is, place crossbeam structure 2 and stand structure 1 perpendicularly earlier, top threaded connection with crossbeam connecting piece 22 and stand structure 1 again, two relative crossbeam structure 2 rethread connecting screw 23 threaded connection simultaneously, when installing two adjacent stand structures 1, with long connecting rod 14 on one stand structure 1 and stand connecting piece 12 threaded connection on another stand structure 1, the stand shear 13 threaded connection on short connecting rod 15 on one stand structure 1 and the stand structure 1 again, thereby the realization of precast concrete beam column, the scaffold that has taken up need not to have solved a large amount of precast concrete beam column and has constructed the prefabricated concrete column mounting technique with the help of the current scaffold.

Example 2:

as an alternative embodiment, the column connector 12 includes a first pouring part 121, a first connecting part 122 and a first shear rod 123, the first pouring part 121 and the first connecting part 122 are fixedly connected, an end of the first shear rod 123 is fixedly connected with the first connecting part 122, the first pouring part 121 and the first shear rod 123 are both located in the column 11 and fixed by concrete pouring, an outer wall of the first connecting part 122 is attached to the column 11, and the first connecting part 122 is in threaded connection with a free end of the long connecting rod 14.

The first casting part 121 comprises a first back plate 1211 and two first support plates 1212, the number of the first support plates 1212 is two, the two first support plates 1212 are both fixedly connected with the middle region of the first back plate 1211, and a space is formed between the two first support plates 1212; the first connecting portion 122 includes two first bottom plates 1221, two second top plates 1222, two second support plates 1223 and two first top plates 1224, the two second support plates 1223 and the two first top plates 1224 are vertically and fixedly connected, the side ends of the first top plates 1224 are fixedly connected to the second top plates 1222, the two second support plates 1223 are located in the middle regions of the two first bottom plates 1221 and the two second top plates 1222 and fixedly connected, a space is formed between the two second support plates 1223, the two first back plates 1211 and the two first support plates 1212 are fixedly connected to the top of the first top plates 1224, the first back plates 1211 and the second back plates 1224 are arranged in parallel, the first support plates 1212 and the second support plates 1223 are arranged in parallel, the number of the first shear rods 123 may be four, the ends of the two first shear rods 123 are fixedly connected to the first top plates 1222, the end of one first shear rod 123 is fixedly connected to the second back plates 1222, and the end of the other first shear rod 123 is located between the two first support plates 1223 and fixedly connected to the first bottom plates 1221. Through holes are formed in the first bottom plate 1221 and the first top plate 1224, the through holes in the first bottom plate 1221 are in threaded connection with the long connecting rods 14, and the through holes in the first top plate 1224 can be connected with steel bars on the upright posts 11.

As an alternative embodiment, the column shear 13 includes two frame-shaped frames 131, a first connection plate 132, a second connection plate 133 and connection plates 134, the number of the frame-shaped frames 131 and the second connection plate 133 is two, the two frame-shaped frames 131 are fixedly connected by the connection plates 134, the two frame-shaped frames 131 can be fixedly connected by the connection plates 134, a gap exists between the adjacent connection plates 134, the bottoms of the two frame-shaped frames 131 are fixedly connected with the first connection plate 132, one end of the second connection plate 133 can be inserted into the frame-shaped frames 131, the second connection plate 133 is fixedly connected with the frame-shaped frames 131, the second connection plate 133 is located in the top region of the frame-shaped frames 131, the top regions of the second connection plate 133 and the frame-shaped frames 131 are located in the column 11 and fixed by concrete casting, the first connection plate 132 is in threaded connection with the free end of the short connection rod 15, the first connection plate 132 and the second connection plate 133 are provided with through holes, the through holes of the first connection plate 132 are in threaded connection with the free end of the short connection rod 15, and the through holes of the second connection plate 133 can be connected with the steel bars on the column 11.

Example 3:

as an alternative embodiment, the beam connector 22 includes a first beam connector 221 and a second beam connector 222, the first beam connector 221 and the second beam connector 222 are respectively located at two end corners of the beam 21, the first beam connector 221 is in threaded connection with the top of the upright 11, the first beam connector 221 on one beam structure 2 is connected with the first beam connector 221 on the other beam structure 2 through a connecting screw 23, and the second beam connector 222 on one beam structure 2 is connected with the second beam connector 222 on the other beam structure 2 through a connecting screw 23.

As an alternative embodiment, the first beam connector 221 includes a second pouring portion 2211, a second connecting portion 2212, a second shear bar 2213 and a column connecting portion 2214, the second pouring portion 2211 and the second connecting portion 2212 are fixedly connected, an end of the second shear bar 2213 is fixedly connected to the second pouring portion 2211, the column connecting portion 2214 is located on the same side of the second pouring portion 2211 and the second connecting portion 2212, the column connecting portion 2214 is fixedly connected to the second connecting portion 2212, the second pouring portion 2211 and the second shear bar 2213 are both located in the beam 21 and fixed by pouring concrete, an outer wall of the second connecting portion 2212 is attached to the beam 21, and the column connecting portion 2214 is in threaded connection with a top of the column 11.

The second pouring part 2211 comprises a third back plate 22111 and three third support plates 22112, the number of the third support plates 22112 is two, the third support plates 22112 are fixedly connected with the third back plate 22111, a gap is formed between the two third support plates 22112, a clamping gap is formed in each third support plate 22112, the number of the second shear resistant rods 2213 can be three, and all the three second shear resistant rods 2213 are fixedly connected with the third back plate 22111; the second connecting portion 2212 includes two second bottom plates 22121, two second top plates 22122, two fourth back plates 22123 and a U-shaped frame 22124, the number of the second top plates 22122 and the number of the fourth back plates 22123 are two, the second top plates 22122 and the fourth back plates 22123 are vertically and fixedly connected to form an L-shaped frame, the U-shaped frame 22124 is arranged between the two L-shaped frames, two ends of the U-shaped frame 22124 are respectively and fixedly connected to ports of the two L-shaped frames, ends of the fourth back plates 22123 and the U-shaped frame 22124 are respectively and fixedly connected to the second bottom plates 22121, the third back plates 22111 and the third support plates 22112 are respectively and vertically and fixedly connected to the fourth back plates 22123, the second bottom plates 22121 and the second top plates 22122 are respectively provided with through holes, the through holes in the second bottom plates 22121 are in threaded connection with the connecting screws 23, and the through holes in the second top plates 22122 are connected to reinforcing steel bars in the cross beams 22121; the column connecting portion 2214 includes a mounting plate 22141 and two fourth support plates 22142, the two fourth support plates 22142 are all fixedly connected with the mounting plate 22141 and have an interval between the two fourth support plates 22142, a mounting hole is provided on the mounting plate 22141, the mounting hole is in threaded connection with the top of the column 11, a support notch is provided on the fourth support plate 22142, the end of the mounting plate 22141 is vertically and fixedly connected with the second bottom plate 22121, and the fourth support plates 22142 are all vertically and fixedly connected with the third bottom plate 22111 and the second bottom plate 22121.

As an alternative embodiment, the second beam connector 222 includes a third casting portion 2221, a third connecting portion 2222 and a third shear bar 2223, the third casting portion 2221 and the third connecting portion 2222 are fixedly connected, an end of the third shear bar 2223 is fixedly connected with the third casting portion 2221, and the third casting portion 2221 and the third shear bar 2223 are both located in the beam 21 and fixed by concrete casting. The third pouring part 2221 and the second pouring part 2211 have the same structure, the third shear bar 2223 and the second shear bar 2213 have the same structure, and the third connecting part 2222 is different from the second connecting part 2212 in that the third connecting part 2222 does not have the U-shaped frame 22124 on the second connecting part 2212, and the U-shaped frame 22124 needs to be changed into two parallel plates 22221, and two second top plates 22122 need to be changed into one long top plate 22222.

Example 4:

as an alternative embodiment, a plurality of connection holes 111 are provided on the top of the column 11, and the beam connector 22 is connected to the connection holes 111 by bolts. The mounting plate 22141 rests on top of the column 11 and bolts pass through and are threadably coupled to the mounting and coupling apertures 111.

As an alternative embodiment, the number of the long connecting rods 14 is plural, and the plural long connecting rods 14 are connected by the stirrup 3. The column structure 1 is provided with two column connectors 12, the two column connectors 12 are respectively positioned at two end corners of the column 11, and the column shear connectors 13 are positioned in the middle area of the end of the column 11. The upright post 11 and the cross beam 21 are both formed by pouring concrete through taking a steel bar and a stirrup as a framework.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The support-free fabricated concrete structure connecting node unit is characterized by comprising a column structure (1) and a beam structure (2), wherein,

the upright post structures (1) and the beam structures (2) are vertically arranged, the tops of the upright post structures (1) are in threaded connection with the beam structures (2), the two opposite beam structures (2) are connected through connecting screws (23), and the two adjacent upright post structures (1) are in threaded connection;

the upright post structure (1) comprises upright posts (11), upright post connecting pieces (12), upright post shearing-resistant pieces (13), long connecting rods (14) and short connecting rods (15), wherein the upright post connecting pieces (12) and the upright post shearing-resistant pieces (13) are fixedly connected with the bottom of the upright posts (11), the long connecting rods (14) and the short connecting rods (15) are fixedly connected with the top of the upright posts (11), the upright post connecting piece (12) on one upright post structure (1) is in threaded connection with the long connecting rod (14) of the other upright post structure (1), and the upright post shearing-resistant pieces (13) on one upright post structure (1) are in threaded connection with the short connecting rods (15) of the other upright post structure (1);

crossbeam structure (2) include crossbeam (21) and crossbeam connecting piece (22), crossbeam connecting piece (22) with the tip fixed connection of crossbeam (21), crossbeam connecting piece (22) with the top threaded connection of stand (11), one on crossbeam structure (2) crossbeam connecting piece (22) and another on crossbeam structure (2) crossbeam connecting piece (22) pass through connecting screw (23) are connected.

2. The free-standing fabricated concrete structure connection node unit according to claim 1, wherein the column connection member (12) comprises a first casting part (121), a first connection part (122) and a first shear rod (123), the first casting part (121) and the first connection part (122) are fixedly connected, an end of the first shear rod (123) is fixedly connected with the first connection part (122), the first casting part (121) and the first shear rod (123) are both located in the column (11) and fixed by concrete casting, an outer wall of the first connection part (122) is attached to the column (11), and the first connection part (122) is threadedly connected with a free end of the long connection rod (14).

3. The support-free fabricated concrete structure connecting node unit according to claim 1, wherein the column shear (13) comprises frame frames (131), first connecting plates (132), second connecting plates (133) and connecting plates (134), the number of the frame frames (131) and the second connecting plates (133) is two, the two frame frames (131) are fixedly connected by the connecting plates (134), the bottoms of the two frame frames (131) are fixedly connected with the first connecting plates (132), one end of the second connecting plates (133) can be inserted into the frame frames (131) and the second connecting plates (133) are fixedly connected with the frame frames (131), the second connecting plates (133) are located at the top regions of the frame frames (131), the top regions of the second connecting plates (133) and the frame frames (131) are located in the columns (11) and are fixed by concrete casting, and the first connecting plates (132) are threadedly connected with the free ends of the short connecting rods (15).

4. The free-standing fabricated concrete structure connection node unit according to claim 1, wherein said beam connection member (22) comprises a first beam connection member (221) and a second beam connection member (222), said first beam connection member (221) and said second beam connection member (222) are respectively located at both end corners of said beam (21), said first beam connection member (221) is in threaded connection with the top of said column (11), said first beam connection member (221) on one of said beam structures (2) is connected with said first beam connection member (221) on the other of said beam structures (2) through said connection screw (23), said second beam connection member (222) on one of said beam structures (2) is connected with said second beam connection member (222) on the other of said beam structures (2) through said connection screw (23).

5. The support-free fabricated concrete structure connection node unit of claim 4, wherein the first beam connector (221) comprises a second pouring part (2211), a second connecting part (2212), a second shear bar (2213) and a column connecting part (2214), the second pouring part (2211) and the second connecting part (2212) are fixedly connected, the end of the second shear bar (2213) is fixedly connected with the second pouring part (2211), the column connecting part (2214) is located at the same side of the second pouring part (2211) and the second connecting part (2212), the column connecting part (2214) is fixedly connected with the second connecting part (2212), the second pouring part (2211) and the second shear bar (2213) are both located in the beam (21) and fixed by concrete pouring, the outer wall of the second connecting part (2212) is attached to the beam (21), and the column connecting part (2214) is screw-connected with the top of the column connecting part (22111).

6. The support-free fabricated concrete structure connection node unit according to claim 4, wherein the second beam connector (222) comprises a third casting portion (2221), a third connection portion (2222) and a third shear bar (2223), the third casting portion (2221) and the third connection portion (2222) are fixedly connected, an end of the third shear bar (2223) is fixedly connected with the third casting portion (2221), and the third casting portion (2221) and the third shear bar (2223) are both located in the beam (21) and fixed by concrete casting.

7. The support-free fabricated concrete structure connection node unit according to claim 1, wherein a plurality of connection holes (111) are provided on the top of the columns (11), and the beam connection member (22) is connected with the connection holes (111) by bolts.

8. The support-free fabricated concrete structure connecting node unit according to claim 1, wherein the number of the long connecting rods (14) is plural, and the plural long connecting rods (14) are connected by stirrups (3).

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