An assembled concrete frame structure beam column with connection nodes

Abstract

A prefabricated concrete frame structure beam-column with a connection node belongs to the field of building seismic isolation technology. The prefabricated concrete frame structure beam-column connection node includes two load-bearing columns, two main beams and a shear wall. The outer wall of each of the load-bearing columns is sequentially sleeved with two fixing sleeves from top to bottom, and the positions of the fixing sleeves on the two load-bearing columns correspond to each other up and down. A main beam is screwed between each corresponding two fixing sleeves, and a plurality of connecting steel bars are evenly distributed on the top of the outer wall of the main beam. The present invention has a high degree of assembly, convenient construction and installation, less wet construction, excellent force performance, and clear force transmission. The present invention is easy to mass produce and assemble on site while ensuring the rigidity of the concrete frame structure, thereby improving the efficiency of on-site construction and effectively solving the problems of difficult assembly positioning and unreliable node connection in prefabricated connections, thereby ensuring the reliability of the connection at the node.

Description

Technical Field

[0001] The invention relates to the technical field of building seismic isolation, and in particular to an assembled concrete frame structure beam column with a connection node. Background Art

[0002] Prefabricated structures can save energy, water, and materials, significantly reduce construction waste, reduce noise pollution, reduce labor and intensity, effectively improve the construction environment, and improve project quality. They are structures worthy of vigorous promotion. Prefabricated frame shear wall structure is one of the most important structural forms, and is currently being vigorously developed at home and abroad. However, how to ensure the safety of prefabricated structures under strong earthquakes is a challenging problem. The difficulty lies in how to ensure the reliability and convenience of the connection between prefabricated structural modules, and how to enhance the stability of prefabricated structures. Although some of the current prefabricated shear walls can achieve reliability and convenience of connection through various construction methods, most of them have poor reliability and convenience, and it is difficult to effectively ensure the safety of the structure under strong earthquakes. Summary of the invention

[0003] In order to solve the technical problems in the prior art such as poor connection reliability between prefabricated structural modules and poor stability performance of frame structure connection nodes, the present invention provides an assembled concrete frame structure beam column with connection nodes.

[0004] The present invention provides a prefabricated concrete frame structure beam column with a connection node, mainly for developing a seismic isolation trench with obvious seismic isolation effect, simple structure, safe and reliable, and convenient construction. The seismic isolation trench can collect and store water, and effectively improve the seismic isolation effect.

[0005] The present invention provides a beam-column connection node of an assembled concrete frame structure, comprising two load-bearing columns, two main beams and a shear wall, wherein the outer wall of each of the load-bearing columns is sequentially sleeved with two fixing sleeves from top to bottom, and the positions of the fixing sleeves on the two load-bearing columns correspond up and down, a main beam is screwed between each corresponding two fixing sleeves, a plurality of connecting steel bars are evenly distributed on the top of the outer wall of the main beam, and the bottom of the shear wall is fixedly connected to the connecting steel bars.

[0006] Preferably, the main beam includes a beam end connecting plate, an I-shaped connecting piece, a plate groove and a concrete protective cover. A plate groove is opened at the center position of the left and right side walls of the main beam, an I-shaped connecting piece is installed at the center position of the plate groove, and there is a gap between the upper and lower ends of the I-shaped connecting piece and the upper and lower ends of the plate groove. Groups of bolt holes are evenly opened at symmetrical positions of the upper and lower flanges of the left and right ends of the I-shaped connecting piece, and each group of bolt holes has two. Two rows of beam end connecting plates are vertically connected to the upper and lower ends of the left and right side walls of the main beam, and the positions of the two rows of beam end connecting plates at the upper and lower ends match. Four screw holes are opened on the inner wall of each of the beam end connecting plates, and the upper and lower ends of the left and right side walls of the main beam are wrapped with concrete protective covers.

[0007] Preferably, the fixed sleeve includes a sleeve shell, a fixing foot, a sleeve connecting plate and a positioning plate. The inner wall of the sleeve shell is pasted with a fixing foot, and the fixing foot is tightly fitted with the load-bearing column. Two positioning plates are fixedly connected to the center position of the outer wall of the sleeve shell in sequence from top to bottom, and the distance between the two positioning plates is the same as the height of the I-shaped connecting piece. Two bolt holes are vertically opened at the left and right ends of each of the positioning plates, and two rows of sleeve connecting plates are vertically connected at the upper and lower ends of the outer wall of the sleeve shell, and the positions of the two rows of sleeve connecting plates at the upper and lower ends match, and the inner wall of each of the sleeve connecting plates is opened with four screw holes.

[0008] Preferably, the inner wall of the fixing foot is a convex arc-shaped structure.

[0009] Preferably, the width of the gap between the upper and lower ends of the I-shaped connecting piece and the upper and lower ends of the plate groove is the same as the height of the positioning plate.

[0010] Preferably, the outer wall of the fixing sleeve has at least two side surfaces for fixing the mounting sleeve connecting plate and the positioning plate.

[0011] Preferably, the beam end connecting plate fits tightly against the inner wall of the sleeve connecting plate, and a bolt passes through a bolt hole opened on the outer walls of both to fix the beam end connecting plate to the sleeve connecting plate.

[0012] Preferably, the positioning plate is inserted into the gap between the upper and lower ends of the I-shaped connector and the upper and lower ends of the plate groove, the outer wall of the positioning plate is tightly fitted with the I-shaped connector and the plate groove, and a bolt is passed through the bolt hole opened in the outer wall of the I-shaped connector and the positioning plate to fix the I-shaped connector and the positioning plate.

[0013] Preferably, the outer side height of the beam end connecting plate is the same as the inner side height of the sleeve connecting plate.

[0014] Preferably, the outer side height of the I-shaped connector is the same as the inner side height of the positioning plate.

[0015] Beneficial effects: The present invention has a high degree of assembly, is convenient for construction and installation, requires less wet work, has excellent stress-bearing performance, and has clear force transmission. While ensuring the rigidity of the concrete frame structure, the present invention is convenient for mass production and on-site assembly, thereby improving on-site construction efficiency and effectively solving problems such as difficult assembly positioning and unreliable node connections in prefabricated connections, thereby ensuring the reliability of connections at the nodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front view of a prefabricated concrete frame structure beam column with a connection node provided by the present invention;

[0017] Figure 2 A schematic diagram of the structure of the assembled concrete frame structure beams and columns with connection nodes provided by the present invention;

[0018] Figure 3 A structural front view of a main beam in a prefabricated concrete frame structure beam column with a connection node provided by the present invention;

[0019] Figure 4 A structural side view of the main beam in the assembled concrete frame structure beam column with a connection node provided by the present invention

[0020] Figure 5 A schematic diagram of the structure of a fixing sleeve in a beam column of an assembled concrete frame structure with a connection node provided by the present invention;

[0021] Figure 6 A top view of the structure of a fixing sleeve in a beam column of an assembled concrete frame structure with a connection node provided by the present invention;

[0022] Figure 7 A structural front view of a fixing sleeve in a beam column of an assembled concrete frame structure with a connection node provided by the present invention;

[0023] Figure 8 A schematic diagram of the connection between a fixed sleeve and a load-bearing column in a beam-column of an assembled concrete frame structure with a connection node provided by the present invention;

[0024] Fig. 9 A connection detail diagram of the fixed sleeve at A in the assembled concrete frame structure beam column with a connection node provided by the present invention;

[0025] Fig.10 A connection detail diagram of the fixed sleeve at A in the assembled concrete frame structure beam column with a connection node provided by the present invention;

[0026] Fig.11 The connection detail diagram of the fixing sleeve in the beam column of the assembled concrete frame structure with a connection node provided by the invention at position B;

[0027] Fig.12 A detailed diagram of the connection between the fixing sleeve and the main beam in the fixing sleeve in the beam-column of the assembled concrete frame structure with a connection node provided by the invention.

[0028] Among them: 1 is the load-bearing column; 2 is the main beam; 2-1 is the beam end connecting plate; 2-2 is the I-shaped connecting piece; 2-3 is the plate groove; 2-4 is the concrete protective sleeve; 3 is the fixed sleeve; 3-1 is the sleeve shell; 3-2 is the fixed foot; 3-3 is the sleeve connecting plate; 3-4 is the positioning plate; 4 is the connecting steel bar; 5 is the bolt; 6 is the bolt hole; 7 is the shear wall. DETAILED DESCRIPTION

[0029] In order to further illustrate the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0030] A prefabricated concrete frame structure beam-column with a connection node comprises two load-bearing columns 1, two main beams 2 and a shear wall 7. Two fixing sleeves 3 are sequentially sleeved on the outer wall of each load-bearing column 1 from top to bottom. The distance between two adjacent fixing sleeves 3 can be adjusted according to the specific floor height, and the positions of the fixing sleeves 3 on the two load-bearing columns 1 correspond to each other up and down. A main beam 2 is screwed between each corresponding two fixing sleeves 3, so that the left and right ends of the main beam 2 can be connected to the load-bearing columns 1 on both sides. A plurality of connecting steel bars 4 are evenly distributed on the top of the outer wall of the main beam 2, and the bottom of the shear wall 7 is fixedly connected to the connecting steel bars 4.

[0031] As a further improvement of the present invention, the main beam 2 includes a beam end connecting plate 2-1, an I-shaped connecting piece 2-2, a plate groove 2-3 and a concrete protective sleeve 2-4. A plate groove 2-3 is opened at the center position of the left and right side walls of the main beam 2, an I-shaped connecting piece 2-2 is installed at the center position of the plate groove 2-3, and there is a gap between the upper and lower ends of the I-shaped connecting piece 2-2 and the upper and lower ends of the plate groove 2-3. A group of bolt holes 6 are evenly opened at the symmetrical positions of the upper and lower flanges of the left and right ends of the I-shaped connecting piece 2-2, and each group of bolt holes 6 has two. The upper and lower ends of the left and right side walls of the main beam 2 are vertically connected with two rows of beam end connecting plates 2-1, and the positions of the two rows of beam end connecting plates 2-1 at the upper and lower ends match, and the inner wall of each of the beam end connecting plates 2-1 is opened with four screw holes 6, and the upper and lower ends of the left and right side walls of the main beam 2 are wrapped with concrete protective sleeves 2-4.

[0032] As a further improvement of the present invention, the fixed sleeve 3 includes a sleeve shell 3-1, a fixed foot 3-2, a sleeve connecting plate 3-3 and a positioning plate 3-4. The inner wall of the sleeve shell 3-1 is pasted with a fixed foot 3-2, and the fixed foot 3-2 is tightly fitted with the load-bearing column 1. Two positioning plates 3-4 are fixedly connected in sequence from top to bottom at the center position of the outer wall of the sleeve shell 3-1, and the distance between the two positioning plates 3-4 is the same as the height of the I-shaped connecting piece 2-2. Two bolt holes 6 are vertically opened at the left and right ends of each of the positioning plates 3-4. Two rows of sleeve connecting plates 3-3 are vertically connected at the upper and lower ends of the outer wall of the sleeve shell 3-1, and the positions of the two rows of sleeve connecting plates 3-3 at the upper and lower ends match, and four screw holes 6 are opened on the inner wall of each of the sleeve connecting plates 3-3.

[0033] As a further improvement of the present invention, the inner wall of the fixed foot 3-2 is a convex arc-shaped structure.

[0034] As a further improvement of the present invention, the width of the gap between the upper and lower ends of the I-shaped connector 2-2 and the upper and lower ends of the plate groove 2-3 is the same as the height of the positioning plate 3-4.

[0035] As a further improvement of the present invention, the outer wall of the fixing sleeve 3 has at least two side surfaces for fixing the sleeve connecting plate 3 - 3 and the positioning plate 3 - 4 .

[0036] As a further improvement of the present invention, the beam end connecting plate 2-1 fits tightly against the inner wall of the sleeve connecting plate 3-3, and a bolt 5 passes through a bolt hole 6 opened on the outer walls of both to fix the beam end connecting plate 2-1 and the sleeve connecting plate 3-3.

[0037] As a further improvement of the present invention, the positioning plate 3-4 is inserted into the gap between the upper and lower ends of the I-shaped connector 2-2 and the upper and lower ends of the plate groove 2-3, and the outer wall of the positioning plate 3-4 is tightly fitted with the I-shaped connector and the plate groove 2-3, and a bolt 5 is passed through the bolt hole 6 opened on the outer wall of the I-shaped connector 2-2 and the positioning plate 3-4 to fix the I-shaped connector 2-2 and the positioning plate 3-4.

[0038] As a further improvement of the present invention, the outer side height of the beam end connecting plate 2-1 is the same as the inner side height of the sleeve connecting plate 3-3.

[0039] As a further improvement of the present invention, the outer side height of the I-shaped connector 2-2 is the same as the inner side height of the positioning plate 3-4.

[0040] Working principle: The present invention installs a fixing sleeve 3 on the upper end of the load-bearing column 1, pre-buries the fixing foot 3-2 on the fixing sleeve 3 inside the load-bearing column 1, and fixes the main beam 2 and the fixing sleeve 3 together by bolts 5 to form a preliminary frame structure, and then installs the shear wall 7, paying attention to the connection between the shear wall 7 and the load-bearing column 1 and the main beam 2 of the lower layer, and finally, installs the main beam 2 of the upper layer, and fixes the main beam 2 and the fixing sleeve 3 by bolts 5.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An assembled concrete frame structure beam column with a connection node, comprising two load-bearing columns (1), two main beams (2) and a shear wall (7), characterized in that: The outer wall of each of the load-bearing columns (1) is sleeved with two fixing sleeves (3) in sequence from top to bottom, and the positions of the fixing sleeves (3) on the two load-bearing columns (1) correspond to each other from top to bottom, a main beam (2) is screwed between each of the two corresponding fixing sleeves (3), a plurality of connecting steel bars (4) are evenly distributed on the top of the outer wall of the main beam (2), and the connecting steel bars (4) are fixed to the bottom of the shear wall (7); The main beam (2) comprises a beam end connecting plate (2-1), an I-shaped connecting piece (2-2), a plate groove (2-3) and a concrete protective sleeve (2-4); a plate groove (2-3) is provided at the center of the left and right side walls of the main beam (2); an I-shaped connecting piece (2-2) is installed at the center of the plate groove (2-3); and there is a gap between the upper and lower ends of the I-shaped connecting piece (2-2) and the upper and lower ends of the plate groove (2-3); the left and right sides of the I-shaped connecting piece (2-2) are connected to the plate groove (2-3); A group of bolt holes (6) are evenly opened at symmetrical positions of the upper and lower flanges at both ends, and each group of bolt holes (6) has two bolt holes. The upper and lower ends of the left and right side walls of the main beam (2) are respectively vertically connected with two rows of beam end connecting plates (2-1), and the positions of the two rows of beam end connecting plates (2-1) at the upper and lower ends are matched. The inner wall of each beam end connecting plate (2-1) is opened with four bolt holes (6). The upper and lower ends of the left and right side walls of the main beam (2) are wrapped with concrete protective sleeves (2-4); The fixed sleeve (3) comprises a sleeve shell (3-1), a fixing foot (3-2), a sleeve connecting plate (3-3) and a positioning plate (3-4); the inner wall of the sleeve shell (3-1) is pasted with a fixing foot (3-2), and the fixing foot (3-2) is tightly fitted with the load-bearing column (1); two positioning plates (3-4) are fixedly connected in sequence from top to bottom at the center position of the outer wall of the sleeve shell (3-1), and the distance between the two positioning plates (3-4) is the same as the height of the I-shaped connecting piece (2-2); two bolt holes (6) are vertically provided at the left and right ends of each positioning plate (3-4); two rows of sleeve connecting plates (3-3) are vertically connected at the upper and lower ends of the outer wall of the sleeve shell (3-1), and the positions of the two rows of sleeve connecting plates (3-3) at the upper and lower ends match each other; and four bolt holes (6) are provided on the inner wall of each sleeve connecting plate (3-3); The inner wall of the fixed foot (3-2) is a convex arc-shaped structure; The width of the gap between the upper and lower ends of the I-shaped connecting piece (2-2) and the upper and lower ends of the plate groove (2-3) is the same as the height of the positioning plate (3-4).

2. The assembled concrete frame structure beam column with connection nodes according to claim 1 is characterized in that: The outer wall of the fixing sleeve (3) has at least two side surfaces on which the sleeve connecting plate (3-3) and the positioning plate (3-4) are fixed.

3. The assembled concrete frame structure beam column with connection nodes according to claim 1, characterized in that: The beam end connecting plate (2-1) is tightly fitted to the inner wall of the sleeve connecting plate (3-3), and a bolt (5) is passed through a bolt hole (6) opened on the outer walls of both to fix the beam end connecting plate (2-1) and the sleeve connecting plate (3-3).

4. The assembled concrete frame structure beam column with connection nodes according to claim 1, characterized in that: The positioning plate (3-4) is inserted into the gap between the upper and lower ends of the I-shaped connecting piece (2-2) and the upper and lower ends of the plate groove (2-3); the outer wall of the positioning plate (3-4) is tightly fitted with the I-shaped connecting piece and the plate groove (2-3); and a bolt (5) is passed through a bolt hole (6) provided on the outer wall of the I-shaped connecting piece (2-2) and the positioning plate (3-4), thereby fixing the I-shaped connecting piece (2-2) and the positioning plate (3-4).

5. The assembled concrete frame structure beam column with connection nodes according to claim 3 is characterized in that: The outer side height of the beam end connecting plate (2-1) is the same as the inner side height of the sleeve connecting plate (3-3).

6. The assembled concrete frame structure beam column with connection nodes according to claim 4, characterized in that: The outer side height of the I-shaped connecting piece (2-2) is the same as the inner side height of the positioning plate (3-4).

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