Fabricated frictional energy dissipation connecting joint of external wall panel

Abstract

An assembled external wall panel friction energy dissipation connecting joint, including H-shaped steel beam, friction plate, connecting piece one and connecting piece two, a group of high-strength bolt pairs are embedded in prefabricated concrete external wall panel, connecting piece two is tightly connected on prefabricated concrete external wall panel through high-strength bolt pairs, connecting piece two is connected with connecting piece one through high-strength bolt pairs, friction plate is padded between connecting piece two and connecting piece one, H-shaped steel beam is fixed on connecting piece one and is fastened through high-strength bolt pairs.The application realizes the effect that the connecting joint does not cause H-shaped steel beam to yield first in the use process by connecting connecting piece one with the upper and lower flange plates and web plate of H-shaped steel beam, and the stiffness and strength of the connecting joint and the main structure connection are strengthened; the friction coefficient between the connecting joints is different due to the different materials of the friction plate, and the relative sliding between the connecting pieces, so as to achieve the effect of dissipating part of the seismic energy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of assembled peripheral maintenance system, and particularly relates to a friction energy dissipation connecting joint of assembled external wall panel. BACKGROUND

[0002] With the continuous development of the field of assembled buildings in China, the characteristics of the connecting joint in the construction process of the assembled peripheral maintenance system directly affect the development and application of the assembled building structure. The connecting technology of the external wall panel and the main structure develops relatively slowly. The traditional flexible connecting joint and rigid connecting joint are still used in actual engineering. The connecting joint and the main structure are still connected by welding. Under the action of the earthquake, the connecting joint is prone to brittle failure, which causes the lateral overturning of the external wall panel and the occurrence of secondary disasters. At the same time, the welding connection reduces the stiffness and strength of the main structure itself, and plastic hinges are easily formed at the welding connection under the action of the earthquake. SUMMARY

[0003] The present application provides a friction energy dissipation connecting joint of assembled external wall panel to solve the above problems, and solves the technical problems of poor connecting strength of the connecting joint and the main structure, small stiffness, brittle fracture failure of the welding connection, unchangeable friction coefficient, local compression of the connecting joint, and plastic hinge formation of the beam flange.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A friction energy dissipation connecting joint of assembled external wall panel, comprising an H-shaped steel beam, a friction plate, a connecting piece one and a connecting piece two, a group of high-strength bolt pairs are pre-buried on a prefabricated concrete external wall panel, the connecting piece two is tightly connected to the prefabricated concrete external wall panel through the high-strength bolt pairs, the connecting piece two and the connecting piece one are connected through the high-strength bolt pairs, the friction plate is interposed between the connecting piece two and the connecting piece one, and the H-shaped steel beam is fixed on the connecting piece one and fastened through the high-strength bolt pairs.

[0006] The connecting piece one comprises a pair of symmetrically arranged Z-shaped plates, which are an upper Z-shaped plate and a lower Z-shaped plate, respectively. The upper Z-shaped plate comprises an upper plate upper support plate, an upper plate middle web plate and an upper plate lower support plate connected in sequence. The upper plate middle web plate comprises an upper plate first vertical plate connected with the upper plate upper support plate, an upper plate horizontal plate connected with the upper plate first vertical plate and an upper plate second vertical plate connected with the upper plate lower support plate. The lower Z-shaped plate comprises a lower plate lower support plate, a lower plate middle web plate and a lower plate upper support plate connected in sequence. The lower plate middle web plate comprises a lower plate first vertical plate connected with the lower plate upper support plate, a lower plate horizontal plate connected with the lower plate first vertical plate and a lower plate second vertical plate connected with the lower plate lower support plate.

[0007] The upper plate of the upper Z-shaped plate is provided with four round holes, the upper horizontal plate and the second vertical plate of the upper plate are each provided with two round holes, and the lower supporting plate of the upper plate is provided with a waist-shaped hole.

[0008] When the H-shaped steel beam is connected with the connecting piece one, the upper flange plate of the H-shaped steel beam is inserted into the gap between the upper supporting plate and the upper horizontal plate of the upper plate, the lower flange plate of the H-shaped steel beam is inserted into the gap between the lower supporting plate and the lower horizontal plate of the lower plate, the web plate of the H-shaped steel beam is tightly attached to the second vertical plate of the upper plate and the second vertical plate of the lower plate, the H-shaped steel beam is provided with a round hole at the position corresponding to the round hole, and the H-shaped steel beam is fastened with the connecting piece one by passing through the corresponding round holes through a high-strength bolt pair.

[0009] The connecting piece two comprises a pair of symmetrically arranged F-shaped plates, which are an upper F-shaped plate and a lower F-shaped plate, the upper F-shaped plate comprises an upper plate side plate, an upper plate first supporting plate connected to the bottom of the upper plate side plate, and an upper plate second supporting plate connected to the middle lower part of the upper plate side plate, the lower F-shaped plate comprises a lower plate side plate, a lower plate first supporting plate connected to the top of the lower plate side plate, and a lower plate second supporting plate connected to the middle upper part of the lower plate side plate, and two round holes are formed in the upper plate side plate, the upper plate first supporting plate, the upper plate second supporting plate, the lower plate side plate, the lower plate first supporting plate and the lower plate second supporting plate.

[0010] The three friction plates are arranged between the upper plate second supporting plate and the upper plate lower supporting plate, between the upper plate first supporting plate and the lower plate first supporting plate, and between the lower plate second supporting plate and the lower plate lower supporting plate, and are connected by interlacing and inserting the connecting piece one, the friction plate and the connecting piece two through a high-strength bolt pair passing through the round holes and the waist-shaped holes.

[0011] The friction plate is one or more of an aluminum plate, a copper plate, a carbon fiber plate, a polytetrafluoroethylene plate and a NAO plate.

[0012] The present application has the advantages that the connecting piece one is connected with the upper and lower flange plates and the web plate of the H-shaped steel beam, so that the connecting joint does not cause the H-shaped steel beam to yield first in use, and the stiffness and strength of the connecting joint and the main structure connection are strengthened; the friction coefficient between the connecting joints is different due to the different materials of the friction plates, and the relative sliding between the connecting pieces is achieved, so that part of the seismic energy is dissipated; the waist-shaped hole is formed in the connecting piece one, the connecting piece can realize surface pressure, and the friction energy consumption is achieved, and the energy consumption effect of the connecting piece is optimal. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The present application has the advantages that the connecting piece one is connected with the upper and lower flange plates and the web plate of the H-shaped steel beam, so that the connecting joint does not cause the H-shaped steel beam to yield first in use, and the stiffness and strength of the connecting joint and the main structure connection are strengthened; the friction coefficient between the connecting joints is different due to the different materials of the friction plates, and the relative sliding between the connecting pieces is achieved, so that part of the seismic energy is dissipated; the waist-shaped hole is formed in the connecting piece one, the connecting piece can realize surface pressure, and the friction energy consumption is achieved, and the energy consumption effect of the connecting piece is optimal.

[0014] Figure 2 is a structural exploded view of the present application.

[0015] Figure 3 is a structural view of the connecting piece one of the present application.

[0016] Figure 4 is a structural view of the connecting piece two of the present application.

[0017] Wherein: 1-H type steel beam; 2-connecting piece one; 21-upper "Z" type plate; 211-upper plate upper support plate; 212-lower plate lower support plate; 213-upper plate middle web; 2131-upper plate first vertical plate; 2132-upper plate horizontal plate; 2133-upper plate second vertical plate; 22-lower "Z" type plate; 221-lower plate upper support plate; 222-lower plate lower support plate; 223-lower plate middle web; 2231-lower plate first vertical plate; 2232-lower plate horizontal plate; 2233-lower plate second vertical plate; 3-friction plate; 4-connecting piece two; 41-upper "F" type plate; 411-upper plate side plate; 412-upper plate second support plate; 413-upper plate first support plate; 42-lower "F" type plate; 421-lower plate side plate; 422-lower plate second support plate; 423-lower plate first support plate; 5-high strength bolt pair; 6-precast concrete external wall panel. DETAILED DESCRIPTION

[0018] An assembled external wall panel friction energy dissipation connecting joint, comprising an H type steel beam 1, a friction plate 3, a connecting piece one 2 and a connecting piece two 4, a group of high strength bolt pairs 5 are embedded in a precast concrete external wall panel 6, the tail of the high strength bolt rod embedded in the precast concrete external wall panel 6 is double cross-shaped, and is bound together with the reinforcement cage of the precast concrete external wall panel 6, the external wall panel is a steam light aerated concrete panel, a foam concrete panel or a precast concrete panel, the connecting piece two 4 is tightly connected to the precast concrete external wall panel 6 through the high strength bolt pair 5, the connecting piece two 4 is connected with the connecting piece one 2 through the high strength bolt pair 5, the friction plate 3 is padded between the connecting piece two 4 and the connecting piece one 2, the H type steel beam 1 is fixed on the connecting piece one 2 and is fastened through the high strength bolt pair 5.

[0019] The connecting piece 2 comprises a pair of symmetrically arranged "Z"-shaped plates, namely an upper "Z"-shaped plate 21 and a lower "Z"-shaped plate 22, the upper "Z"-shaped plate 21 comprises an upper plate upper support plate 211, an upper plate middle web plate 213 and an upper plate lower support plate 212 connected in sequence, the upper plate middle web plate 213 comprises an upper plate first vertical plate 2131 connected with the upper plate upper support plate 211, an upper plate horizontal plate 2132 connected with the upper plate first vertical plate 2131 and an upper plate second vertical plate 2133 connected with the upper plate lower support plate 212, the lower "Z"-shaped plate 22 comprises a lower plate lower support plate 222, a lower plate middle web plate 223 and a lower plate upper support plate 221 connected in sequence, the lower plate middle web plate 223 comprises a lower plate first vertical plate 2231 connected with the lower plate upper support plate 221, a lower plate horizontal plate 2232 connected with the lower plate first vertical plate 2231 and a lower plate second vertical plate 2233 connected with the lower plate lower support plate 222.

[0020] Four circular holes are formed on the upper plate upper support plate 211 of the upper "Z"-shaped plate 21, two circular holes are formed on the upper plate horizontal plate 2132 and the upper plate second vertical plate 2133 respectively, a waist-shaped hole is formed on the upper plate lower support plate 212, four circular holes are formed on the lower plate upper support plate 221 of the lower "Z"-shaped plate 22, two circular holes are formed on the lower plate horizontal plate 2232 and the lower plate second vertical plate 2233 respectively, and a waist-shaped hole is formed on the lower plate lower support plate 222, the waist-shaped hole on the connecting piece 2 can relatively slide with the main body structure to dissipate energy.

[0021] When the H-shaped steel beam 1 is connected with the connecting piece 2, the upper flange plate of the H-shaped steel beam 1 is inserted into the gap between the upper plate upper support plate 211 and the upper plate horizontal plate 2132, the lower flange plate of the H-shaped steel beam 1 is inserted into the gap between the lower plate upper support plate 221 and the lower plate horizontal plate 2232, the web plate of the H-shaped steel beam 1 is tightly attached to the upper plate second vertical plate 2133 and the lower plate second vertical plate 2233, circular holes are formed on the H-shaped steel beam 1 corresponding to the positions of the circular holes, and the H-shaped steel beam 1 and the connecting piece 2 are fastened by the high-strength bolt pair 5 passing through the corresponding circular holes, the connecting piece 2 and the H-shaped steel beam 1 are connected to form an integral component, the strength of the upper and lower flange plates and the web plate of the H-shaped steel beam 1 is strengthened at the connection joint and the main body structure, and plastic hinge is prevented from being formed at the connection joint to enter the yield state in advance.

[0022] The connecting piece two 4 includes a pair of symmetrically arranged "F" type plates, namely an upper "F" type plate 41 and a lower "F" type plate 42, the upper "F" type plate 41 includes an upper plate side plate 411, an upper plate first branch plate 413 connected at the bottom of the upper plate side plate 411, and an upper plate second branch plate 412 connected at the middle lower part of the upper plate side plate 411, the lower "F" type plate 42 includes a lower plate side plate 421, a lower plate first branch plate 423 connected at the top of the lower plate side plate 421, and a lower plate second branch plate 422 connected at the middle upper part of the lower plate side plate 421, two round holes are formed in the upper plate side plate 411, the upper plate first branch plate 413, the upper plate second branch plate 412, the lower plate side plate 421, the lower plate first branch plate 423 and the lower plate second branch plate 422, and the round holes of the connecting piece two 4 limit the inclination of the high-strength bolt pair 5 in the relative sliding of the connecting pieces.

[0023] Three friction plates 3 are arranged between the upper plate second branch plate 412 and the upper plate lower branch plate 212, between the upper plate first branch plate 413 and the lower plate first branch plate 423, and between the lower plate second branch plate 422 and the lower plate lower branch plate 222, respectively, and the connecting piece one 2, the friction plate 3 and the connecting piece two 4 are connected by the high-strength bolt pair 5 passing through the round holes and the waist-shaped holes.

[0024] The friction plate 3 is one or more of an aluminum plate, a copper plate, a carbon fiber plate, a polytetrafluoroethylene plate and a NAO plate, and the material of the connecting node friction plate 3 is not fixed, and the switching of the friction plate 3 achieves the change of the friction coefficient and the dissipation of seismic energy.

[0025] During installation, the connecting piece two 4 is first connected with the prefabricated concrete external wall panel 6, then the high-strength bolt pair 5 is connected with the connecting piece one 2, the waist-shaped hole on the connecting piece one 2 can achieve the effect of relative sliding with the main structure to dissipate energy, the round hole formed on the connecting piece two 4 limits the inclination of the high-strength bolt pair 5 in the relative sliding of the connecting piece one 2 and the connecting piece two 4, then the connecting piece two 4 is connected with the embedded high-strength bolt pair 5 of the prefabricated concrete external wall panel 6, and all nuts are tightened.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The embodiments of the present application are described in detail above, but the above description is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the patent scope of the present application.

Claims

1. A frictional energy dissipation connecting joint for fabricated external wall panels, characterized in that, The utility model relates to a prefabricated concrete external hanging wall board connecting device, including H type steel beam (1), friction plate (3), connecting piece one (2) and connecting piece two (4), a group of high -strength bolt pair (5) are embedded on prefabricated concrete external hanging wall board (6), connecting piece two (4) is connected tightly on prefabricated concrete external hanging wall board (6) through high -strength bolt pair (5), and connecting piece two (4) is connected with connecting piece one (2) through high -strength bolt pair (5), and the friction plate (3) is padded between connecting piece two (4) and connecting piece one (2), and H type steel beam (1) is fixed on connecting piece one (2), and is fastened through high -strength bolt pair (5). The connecting piece one (2) includes a pair of symmetrically arranged "Z" type plates, which are an upper "Z" type plate (21) and a lower "Z" type plate (22), respectively. The upper "Z" type plate (21) includes an upper plate upper support plate (211), an upper plate middle web (213), and an upper plate lower support plate (212) connected in sequence. The upper plate middle web (213) includes an upper plate first vertical plate (2131) connected with the upper plate upper support plate (211), an upper plate horizontal plate (2132) connected with the upper plate first vertical plate (2131), and an upper plate second vertical plate (2133) connected with the upper plate lower support plate (212). The lower "Z" type plate (22) includes a lower plate lower support plate (222), a lower plate middle web (223), and a lower plate upper support plate (221) connected in sequence. The lower plate middle web (223) includes a lower plate first vertical plate (2231) connected with the lower plate upper support plate (221), a lower plate horizontal plate (2232) connected with the lower plate first vertical plate (2231), and a lower plate second vertical plate (2233) connected with the lower plate lower support plate (222). Four circular holes are formed in the upper plate upper support plate (211) of the upper "Z" type plate (21). Two circular holes are formed in the upper plate horizontal plate (2132) and the upper plate second vertical plate (2133). A waist-shaped hole is formed in the upper plate lower support plate (212). Four circular holes are formed in the lower plate upper support plate (221) of the lower "Z" type plate (22). Two circular holes are formed in the lower plate horizontal plate (2232) and the lower plate second vertical plate (2233). A waist-shaped hole is formed in the lower plate lower support plate (222). When the H type steel beam (1) is connected with the connecting piece one (2), the upper flange plate of the H type steel beam (1) is inserted into the gap between the upper plate upper support plate (211) and the upper plate horizontal plate (2132). The lower flange plate of the H type steel beam (1) is inserted into the gap between the lower plate upper support plate (221) and the lower plate horizontal plate (2232). The web of the H type steel beam (1) is tightly attached to the upper plate second vertical plate (2133) and the lower plate second vertical plate (2233). Circular holes are formed in the H type steel beam (1) corresponding to the positions of the circular holes. High-strength bolt pairs (5) pass through the corresponding circular holes to fasten the H type steel beam (1) and the connecting piece one (2). The connecting piece two (4) comprises a pair of symmetrically arranged "F" shaped plates, which are an upper "F" shaped plate (41) and a lower "F" shaped plate (42). The upper "F" shaped plate (41) comprises an upper plate side plate (411), an upper plate first branch plate (413) connected to the bottom of the upper plate side plate (411), and an upper plate second branch plate (412) connected to the middle and lower part of the upper plate side plate (411). The lower "F" shaped plate (42) comprises a lower plate side plate (421), a lower plate first branch plate (423) connected to the top of the lower plate side plate (421), and a lower plate second branch plate (422) connected to the middle and upper part of the lower plate side plate (421). Two round holes are formed in the upper plate side plate (411), the upper plate first branch plate (413), the upper plate second branch plate (412), the lower plate side plate (421), the lower plate first branch plate (423), and the lower plate second branch plate (422).

2. The fabricated exterior wall panel frictional energy dissipation connection node of claim 1, wherein, The three friction plates (3) are arranged between the upper plate second branch plate (412) and the upper plate lower branch plate (212), between the upper plate first branch plate (413) and the lower plate first branch plate (423), and between the lower plate second branch plate (422) and the lower plate lower branch plate (222), respectively. High-strength bolt pairs (5) pass through the round holes and the waist-shaped holes to connect the connecting piece one (2), the friction plate (3), and the connecting piece two (4) in an interleaved manner.

3. The fabricated exterior wall panel frictional energy dissipation connection node of claim 2, wherein, The friction plate (3) is one or more of an aluminum plate, a copper plate, a carbon fiber plate, a polytetrafluoroethylene plate, and a NAO plate.

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