A reinforced crossbeam structure for prefabricated buildings

Abstract

The present invention relates to the technical field of prefabricated beam structures, and particularly relates to a reinforced prefabricated building beam structure, including: columns, a beam is connected to the upper side of the columns through connection nodes, the beam is an H-shaped steel structure, two strengthening structures are symmetrically arranged on the beam along its web, the strengthening structures are used to support the two wing plates of the beam, a connection strengthening part is arranged at the end of the strengthening structure, and the connection strengthening part is connected to the connection node for strengthening the connection stability of the strengthening structure. Friction plates are respectively arranged on both sides of the web at the end of the beam. Beneficial effects: Two strengthening structures are arranged in the beam of the present invention, which increases the stability of the beam, improves the service life of the beam, and also ensures the safety of the building.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated beam structures, and particularly relates to a reinforced prefabricated building beam structure. Background Art

[0002] Prefabricated reinforced concrete structures have the advantages of improving production efficiency, being green and environmentally friendly, etc., and are one of the important directions for the development of building structures in China. Compared with the in-situ construction method, prefabricated structures are beneficial to green construction because prefabricated construction better meets the requirements of green construction such as land saving, energy saving, material saving, water saving and environmental protection, reduces the negative impact on the environment, including reducing noise, preventing dust, reducing environmental pollution, clean transportation, reducing site interference, saving resources and energy such as water, electricity and materials, and follows the principle of sustainable development.

[0003] Most of the crossbeams of existing prefabricated beam-column structures adopt H-shaped steel structures, which have a wide range of applications and can adapt to manufacturing fields such as factories, office buildings, and bridge structures, and have the advantages of being easy to manufacture, simple to install and use. However, it also has some drawbacks. Due to the fixed structure of the H-shaped steel and its relatively single performance, it is impossible to ensure the stability of its load-bearing effect, reducing the safety of the crossbeam during use. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a reinforced prefabricated building beam structure, which solves the problem of poor stability of the crossbeam of the H-shaped steel structure.

[0005] To achieve the above object, the present invention provides the following technical solution: A reinforced prefabricated building beam structure, comprising: columns, the columns are of reinforced concrete structure, the upper side of the columns is connected with a crossbeam through connection nodes, the crossbeam is of H-shaped steel structure, two strengthening structures are symmetrically arranged along the web of the crossbeam, the strengthening structures are used to support the two flanges of the crossbeam, a connecting and strengthening part is arranged at the end of the strengthening structure, and the connecting and strengthening part is connected with the connection node for strengthening the connection stability of the strengthening structure, and friction plates are respectively arranged on both sides of the web at the end of the crossbeam.

[0006] Preferably, the connection node includes: a first connection steel plate, a second connection steel plate, and ear plates. The first connection steel plate is embedded in the column, the second connection steel plate is fixedly connected to the end of the crossbeam, there are four ear plates, and the four ear plates are divided into two groups and are symmetrically arranged on the upper and lower sides of the second connection steel plate respectively, and the four ear plates are fixedly connected to the first connection steel plate.

[0007] Preferably, the strengthening structure includes: two support rods and a plurality of support blocks. The support blocks are evenly arranged between the two wing plates of the cross beam. The two support rods respectively pass through both ends of each support block and are fixedly connected to the support block for connecting the plurality of support blocks. A fixing seat is respectively arranged at both ends of the two support rods, and the fixing seat is fixedly connected to the wing plate of the cross beam. The connection strengthening part is used to connect the fixing seat and the ear plate, and the friction plate is arranged between the fixing seat and the second connecting steel plate.

[0008] Preferably, a strengthening rod for connecting the adjacent support block is further arranged on the fixing seat.

[0009] Preferably, the connection strengthening part includes: a first connection seat, a second connection seat, and a connecting rod. The first connection seat is fixedly connected to the fixing seat, the second connection seat is fixedly connected to the ear plate. A rotating shaft is arranged on both the first connection seat and the second connection seat, and both ends of the connecting rod are respectively connected to the rotating shaft arranged on the first connection seat and the rotating shaft arranged on the second connection seat.

[0010] Preferably, the support block is in the shape of an arch bridge, with platforms arranged on both side parts of its two ends. The raised part of the support block abuts against the web of the cross beam, and the platforms arranged at its two ends respectively abut against the two wing plates of the cross beam.

[0011] Preferably, the support block includes: two inclined surfaces and a flat surface part. The two inclined surfaces are respectively obliquely arranged at both ends of the flat surface part. The flat surface part abuts against the web of the cross beam, and the platform is arranged at the end of the inclined surface part. The platform abuts against the two wing plates of the cross beam.

[0012] Preferably, the friction plate includes: two side plates and a flat plate. Both the two side plates and the flat plate are of cuboid structures. The two side plates are respectively fixedly arranged on both sides of the flat plate to form a U-shaped structure. The flat plates of the two friction plates arranged on both sides of the web of the cross beam are connected by bolts.

[0013] Preferably, a notch is arranged on the first connecting steel plate, and a protrusion is arranged on the second connecting steel plate. The notch is used to place the protrusion for limiting.

[0014] Compared with the prior art, the present invention has the following beneficial effects: There are two strengthening structures arranged inside the cross beam of the present invention, which increases the stability of the cross beam, improves the service life of the cross beam, and also ensures the safety of the building; A friction plate is also arranged on the cross beam of the present invention, which can offset the vibration during an earthquake, further strengthening the stability of the cross beam, and the friction plate is convenient to replace and maintain; The strengthening structure of the present invention is reinforced by the connection strengthening part, which can transmit and disperse the force borne by the cross beam, increasing the load-bearing capacity of the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of a partial structure of the column of the present invention;

[0017] Figure 3 is a schematic diagram of the structure of the second connecting steel plate of the present invention;

[0018] Figure 4 is Figure 1 a partial enlarged view of part A in;

[0019] Figure 5 is a schematic diagram of the structure of the support block of the present invention;

[0020] Figure 6 is a schematic diagram of the structure of the friction plate of the present invention.

[0021] In the figure: 1, column; 2, cross beam; 21, wing plate; 22, web; 3, connection node; 31, first connecting steel plate; 32, second connecting steel plate; 33, ear plate; 4, strengthening structure; 41, strut; 42, support block; 421, platform; 422, inclined surface part; 423, flat surface part; 43, fixed seat; 44, strengthening rod; 5, connection strengthening part; 51, first connection seat; 52, second connection seat; 53, connecting rod; 6, friction plate; 61, side plate; 62, flat plate; 7, notch; 8, protrusion. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be clearly and completely described below in conjunction with specific embodiments.

[0023] As Figures 1-3 shown, a reinforced cross beam 2 structure of a prefabricated building includes: a column 1, the column 1 is a reinforced concrete structure, the upper side of the column 1 is connected with a cross beam 2 through a connection node 3, the cross beam 2 is an H-shaped steel structure, two strengthening structures 4 are symmetrically arranged along the web 22 of the cross beam 2, the strengthening structures 4 are used to support the two wing plates 21 of the cross beam 2 to improve the strength of the cross beam 2, a connection strengthening part 5 is arranged at the end of the strengthening structure 4, and the connection strengthening part 5 is connected with the connection node 3 to strengthen the connection stability of the strengthening structure 4, and friction plates 6 are respectively arranged on both sides of the web 22 at the end of the cross beam 2.

[0024] The connecting node 3 includes: a first connecting steel plate 31, a second connecting steel plate 32, and ear plates 33. The first connecting steel plate 31 is embedded in the column 1, the second connecting steel plate 32 is fixedly connected to the end of the cross beam 2. A notch 7 is provided on the first connecting steel plate 31, and a protrusion 8 is provided on the second connecting steel plate 32. The notch 7 is used to accommodate the protrusion 8 for limiting. There are four ear plates 33, and the four ear plates 33 are divided into two groups, which are symmetrically arranged on the upper and lower sides of the second connecting steel plate 32 respectively.

[0025] When installing the first connecting steel plate 31 and the second connecting steel plate 32, the protrusion 8 provided on the second connecting steel plate 32 corresponds to the notch 7 provided on the first connecting steel plate 31, which can achieve rapid positioning. Bolt holes for connecting the second connecting steel plate 32 are preset on the first connecting steel plate 31. The first connecting steel plate 31 and the second connecting steel plate 32 are fixedly connected by bolts. Bolt holes for connecting the ear plates 33 are also preset on the first connecting steel plate 31, and the ear plates 33 are fixedly connected to the first connecting steel plate 31 by bolts, which can fix the cross beam 2 to the column 1.

[0026] As Figure 4 shown, the strengthening structure 4 includes: two support rods 41, and a number of support blocks 42. The number of support blocks 42 are evenly arranged between the two wing plates 21 of the cross beam 2. The two support rods 41 respectively pass through both ends of each support block 42 and are welded to the support blocks 42 for connecting the number of support blocks 42. A fixing seat 43 is provided at each end of the two support rods 41, and the fixing seat 43 is fixedly connected to the wing plate 21 of the steel beam. The fixing seat 43 is used to fix the two support rods 41 to the steel beam, that is, to fix the support blocks 42. A strengthening rod 44 for connecting the adjacent support blocks 42 is also provided on the fixing seat 43. The strengthening rod 44 increases the stability of the end of the support rod 41 and can better resist the shear stress received at the connection. The fixing seat 43 is also connected to the ear plate 33 through a connecting strengthening part 5 for transmitting the force borne on the support rod 41 to the column 1.

[0027] As Figure 5 shown, the support block 42 includes: two inclined faces 422 and a flat face 423. The two inclined faces 422 are respectively inclined at both ends of the flat face 423 to form an arch shape. A platform 421 is provided at each end of the two inclined faces 422, that is, a platform 421 is provided at both ends of the support block 42. The flat face 423 abuts against the web 22 of the cross beam 2, and the platform 421 abuts against the two wing plates 21 of the cross beam 2. The support block 42 is used to support the wing plate 21, and the force borne on the upper wing plate 21 that bears the gravity of the cross beam 2 is dispersed to the web 22 of the cross beam 2 through the flat face 423. It can also transmit the gravity borne by the cross beam 2 to the column 1 through the support rod 41 and the connecting strengthening part 5, disperse the force borne by the cross beam 2, and reduce the risk of the cross beam 2 breaking.

[0028] As Figure 4As shown, the connection strengthening part 5 includes: a first connection seat 51, a second connection seat 52, and a connecting rod 53. The first connection seat 51 is fixedly connected to the fixed seat 43 by screws. The second connection seat 52 is fixedly connected to the ear plate 33. A rotating shaft is provided on both the first connection seat 51 and the second connection seat 52. The two ends of the connecting rod 53 are respectively connected to the rotating shafts provided on the first connection seat 51 and the second connection seat 52 for force transmission. The connection points where the connecting rod 53 is connected to the first connection seat 51 and the second connection seat 52 all have movable spaces, which can compensate for the deformation of each component caused by environmental factors and improve the connection stability.

[0029] As Figure 1 , Figure 6 shown, the friction plate 6 is arranged between the fixed seat 43 and the second connecting steel plate 32. The friction plate 6 includes: two side plates 61 and a flat plate 62. The two side plates 61 and the flat plate 62 are all in a cuboid structure. The two side plates 61 are respectively fixedly arranged on both sides of the flat plate 62 to form a U-shaped structure. The U-shaped structure is the same as the side shape of the cross beam 2 and can be embedded in the cross beam 2. The flat plates 62 of the two friction plates 6 arranged on both sides of the web 22 of the cross beam 2 are connected by bolts. The size of the friction force of the friction plate 6 is adjusted by bolts. One end of the friction plate 6 abuts against the second connecting steel plate 32. When the cross beam 2 vibrates due to an earthquake or impact, the friction plate 6 can react to the shear stress generated between the cross beam 2 and the second connecting steel plate 32 to achieve the purpose of resisting earthquakes, ensure the stability of the steel beam, and the replacement of the friction plate 6 is relatively convenient. When the friction plate 6 is damaged, just unscrew the bolts for replacement, which further improves the service life of the cross beam 2.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reinforced crossbeam structure for prefabricated buildings, comprising: Column (1), characterized in that the column (1) is of reinforced concrete structure, the upper side of the column (1) is connected with a cross beam (2) through a connection node (3), the cross beam (2) is of H-shaped steel structure, two strengthening structures (4) are symmetrically arranged along the web (22) of the cross beam (2), the strengthening structures (4) are used for supporting two wing plates (21) of the cross beam (2), a connection strengthening part (5) is arranged at the end of the strengthening structure (4), and the connection strengthening part (5) is connected with the connection node (3) for strengthening the connection stability of the strengthening structure (4); friction plates (6) are respectively arranged on both sides of the web (22) at the end of the cross beam (2). The connection node (3) includes: a first connection steel plate (31), a second connection steel plate (32), and a gusset plate (33). The first connection steel plate (31) is embedded in the column (1), the second connection steel plate (32) is fixedly connected with the end of the cross beam (2), there are four gusset plates (33), and the four gusset plates (33) are divided into two groups, which are symmetrically arranged on the upper and lower sides of the second connection steel plate (32) respectively, and the four gusset plates (33) are fixedly connected with the first connection steel plate (31). The strengthening structure (4) includes: two support rods (41) and a number of support blocks (42). The support blocks (42) are evenly arranged between the two wing plates (21) of the cross beam (2). The two support rods (41) respectively pass through both ends of each support block (42) and are fixedly connected with the support blocks (42) for connecting a number of the support blocks (42). Fixed seats (43) are respectively arranged at both ends of the two support rods (41), and the fixed seats (43) are fixedly connected with the wing plates (21) of the cross beam (2). The connection strengthening part (5) is used for connecting the fixed seat (43) and the gusset plate (33), and the friction plate (6) is arranged between the fixed seat (43) and the second connection steel plate (32). A first connection seat (51), a second connection seat (52), and a connecting rod (53). The first connection seat (51) is fixedly connected with the fixed seat (43), the second connection seat (52) is fixedly connected with the gusset plate (33), a rotating shaft is arranged on both the first connection seat (51) and the second connection seat (52), and both ends of the connecting rod (53) are respectively connected with the rotating shaft arranged on the first connection seat (51) and the rotating shaft arranged on the second connection seat (52).

2. The enhanced crossbeam structure for prefabricated buildings according to claim 1, characterized in that, A strengthening rod (44) for connecting the adjacent support block (42) is further arranged on the fixed seat (43).

3. The enhanced crossbeam structure for prefabricated buildings according to claim 2, wherein, The support block (42) is in the shape of an arch bridge, platforms (421) are arranged on both side parts of its two ends, the raised part of the support block (42) abuts against the web (22) of the cross beam (2), and the platforms (421) arranged at its two ends respectively abut against the two wing plates (21) of the cross beam (2).

4. The enhanced crossbeam structure for prefabricated buildings according to claim 3, characterized in that The support block (42) includes: two inclined surfaces (422) and a flat surface portion (423). The two inclined surfaces (422) are respectively inclined at both ends of the flat surface portion (423). The flat surface portion (423) abuts against the web (22) of the cross beam (2). The platform (421) is provided at the end of the inclined surface (422). The platform (421) abuts against the two flange plates (21) of the cross beam (2).

5. The enhanced crossbeam structure for prefabricated buildings according to claim 1, characterized in that, The friction plate (6) includes: two side plates (61) and a flat plate (62). The two side plates (61) and the flat plate (62) are all in a cuboid structure. The two side plates (61) are respectively fixedly arranged on both sides of the flat plate (62) to form a U-shaped structure. The flat plates (62) of the two friction plates (6) arranged on both sides of the web (22) of the cross beam (2) are connected by bolts.

6. The reinforced crossbeam structure for prefabricated buildings according to claim 1, characterized in that, A notch (7) is provided on the first connecting steel plate (31), and a protrusion (8) is provided on the second connecting steel plate (32). The notch (7) is used to place the protrusion (8) for limiting.

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