Beam node structure for bolted connection of fully assembled reinforced concrete wall panels for vertical bending resistance

Abstract

The present invention is used for bolting a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels, and relates to the technical field of assembled concrete structures in the construction industry, and in particular to a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts. The present invention includes: a beam end connection part, a beam end anchoring part, and a connection assembly; the beam end connection part is a vertical bending resistance structure, which is consistent with the cross-sectional shape of the beam anchored by the concrete part; the beam end connection part is fixedly connected to the front end of the beam end anchoring part by welding to form an integrated beam end connection structure; the beam end connection parts of two opposite beam end connection structures are connected as a whole by a connection assembly. The technical solution of the present invention solves the problems in the prior art: it cannot be reused; the bearing capacity is small, and it is only suitable for structures supported by wall panels; it cannot ensure the safety of large spans and complex structures; it cannot ensure the construction accuracy of the node connection, and reduces safety.

Description

Technical Field

[0001] The present invention is used for bolting a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels, and relates to the technical field of assembled concrete structures in the construction industry, and in particular to a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts. Background Art

[0002] Prefabricated concrete structures are widely used at home and abroad due to their high production efficiency, convenient assembly, green energy saving and environmental protection. Low-rise and multi-story fully assembled bolted wall panel reinforced concrete structures are increasingly playing a good technical and economic advantage. Among them, the modular unitized wall panels, which are both vertical load-bearing components and space division functions, are connected to each other with horizontal bolts in the horizontal direction, and the wall panel assembly structure connected to the beam (or foundation beam) in the vertical direction to improve the integrity of the structure has the best construction efficiency and structural integrity advantages, and can withstand large earthquakes. This structural form is being widely used. The nodes of its beams have sufficient strength, rigidity and bearing capacity, which is one of the key technologies for such structures to achieve large spans and complex structural forms; at the same time, the nodes completely realize on-site concrete-free wet operations and can be disassembled and reassembled at any time. It is the core of solving railway and military housing, especially meeting the requirements of short construction time, good durability for long-term use, and multiple disassembly and assembly. In the existing technology, there are the following main deficiencies:

[0003] (1) The connection nodes of the beams require additional formwork for wet joint pouring of concrete, which cannot be reused;

[0004] (2) The vertical flat plate (steel plate) bolt connection node of the beam only has vertical stiffness and bearing capacity, and its load-bearing capacity is small. It is only suitable for the situation where there is a wall panel under the beam;

[0005] (3) When there is no wall panel under the beam or no floor slab connected to the beam, the safety of large-span structures and complex structures cannot be ensured;

[0006] (4) In a narrow space with a length of only 300 mm, a minimum width of 120 mm for the upper section, and a minimum width of 220 mm for the lower section, it is difficult to ensure the construction accuracy of the node connection due to construction errors, which reduces the structural safety.

[0007] (5) In the prior art, beam node forms that can be disassembled and re-used multiple times are extremely rare.

[0008] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of beam node structure for bolting fully assembled reinforced concrete wall panels to resist vertical bending, so as to overcome the problems existing in the prior art. Summary of the invention

[0009] Based on the above-mentioned prior art, the following technical problems are proposed: 1. It cannot be reused; 2. It has a small bearing capacity and is only applicable to structures supported by wall panels; 3. It cannot ensure the safety of large spans and complex structures; 4. It cannot ensure the construction accuracy of node connections, which reduces safety, etc., and a beam node structure for bolting fully assembled reinforced concrete wall panels to resist vertical bending is provided. The present invention mainly utilizes a bolted connection structure and anchored steel bars and anchored reinforcement plates to achieve the purpose of reusability, increased bearing capacity, and improved safety.

[0010] The technical means adopted by the present invention are as follows:

[0011] A beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts can provide a larger vertical bearing capacity while taking into account the horizontal bearing capacity requirements; the beam node structure includes: a beam end connection part, a beam end anchoring part, and a connection assembly; the beam end connection part is a vertical bending resistance structure, which is consistent with the cross-sectional shape of the beam anchored with the concrete part; the beam end connection part is fixedly connected to the front end of the beam end anchoring part by welding to form an integrated beam end connection structure; the beam end connection parts of two opposite beam end connection structures are connected as a whole by a connection assembly.

[0012] Furthermore, the beam end connection part includes: a beam end steel plate, a lower horizontal connection plate, an upper horizontal connection plate, an intermediate horizontal connection plate and a vertical connection plate; the beam end steel plate is consistent with the shape of the beam cross section (most of them are convex structures) as a basic plate for mechanical conversion; the vertical connection plate is vertically welded to the center line of the outer side of the beam end steel plate; the upper horizontal connection plate and the lower horizontal connection plate are horizontally welded to the upper and lower ends of the outer side of the beam end steel plate, and are welded together with the two ends of the vertical connection plate; an intermediate horizontal connection plate is arranged on each side of the vertical connection plate, and the intermediate horizontal connection plate is respectively welded and fixedly connected with the vertical connection plate and the beam end steel plate; the upper horizontal connection plate, the intermediate horizontal connection plate, the lower horizontal connection plate and the vertical connection plate form a structure with a W-shaped cross section; the lower horizontal connection plate, the upper horizontal connection plate, the intermediate horizontal connection plate and the vertical connection plate are all provided with a plurality of screw holes.

[0013] Furthermore, the anchoring part at the end of the beam includes: longitudinal stress-bearing steel bars in the beam, anchor steel bars and anchor reinforcement plates; the longitudinal stress-bearing steel bars in the beam, anchor steel bars and anchor reinforcement plates can be combined in a single form, a combination of two or a trinity form and welded to the inner side of the steel plate at the end of the beam; one end of the anchor reinforcement plate is welded perpendicular to the right side of the steel plate at the end of the beam; the longitudinal stress-bearing steel bars in the beam are vertically welded to the steel plate at the end of the beam; when the longitudinal stress-bearing steel bars in the beam are combined with the anchor reinforcement plate, their sides are welded to the plate surface of the anchor reinforcement plate; the anchor steel bars are concave structures formed by bending steel bars, and the steel bar ends at both ends are bent inward; the concave bottom edge of the anchor steel bars is welded to the steel plate at the end of the beam; when the anchor steel bars are combined with the longitudinal stress-bearing steel bars in the beam and the anchor reinforcement plates in a combination of two or a trinity form, the sides of the anchor steel bars are fixedly connected to the longitudinal stress-bearing steel bars in the beam and the sides of the anchor reinforcement plates by welding.

[0014] The anchoring of the beam end steel plate and the beam concrete is achieved through three technical means: 1. The most basic anchoring form is the welding of the end of the longitudinal force-bearing steel bar in the longitudinal beam to the beam end steel plate; 2. If the anchoring capacity provided by the welding nodes formed by all the longitudinal steel bars is insufficient, the anchor steel bars are directly welded to the beam end steel plate, and the welding length and number of settings are determined by design; 3. When the beam end is subjected to a large load and the above two methods cannot meet the bearing capacity requirements, the anchor reinforcement plate can be welded to the beam end steel plate, and then the anchor steel bars are welded to both sides of the anchor reinforcement plate and the beam end steel plate to improve the anchoring performance. The method of welding the ends of the longitudinal stress-bearing steel bars in the longitudinal beam to the steel plates at the ends of the beams not only meets the need for steel plate anchoring, but also eliminates the problem of hook anchoring of the steel bars at the ends of the beams in the concrete, which saves steel materials compared to conventional methods. At the same time, the steel skeleton in the concrete is firmly welded to the steel plates at the ends of the beams before pouring the concrete. During the pouring of concrete, the steel bars will not shift, which greatly improves the product quality of precast concrete components. On the other hand, the steel plates at the ends of the beams are directly used as templates for pouring concrete at the ends of the beams, which saves costs and improves the efficiency of component manufacturing. The technical advantage of the above-mentioned anchoring scheme is that it can achieve a more complex technical process with a simple method on a narrow beam section, and at the same time can fully meet the anchoring requirements of structural beams within different bearing capacity ranges.

[0015] Furthermore, the connection assembly includes: a high-strength bolt pair, a horizontal connection cover plate A, an upper vertical connection cover plate, a lower vertical connection cover plate, a horizontal connection cover plate B, a horizontal connection cover plate C and a horizontal connection cover plate D; the lengths of the horizontal connection cover plate A, the upper vertical connection cover plate, the lower vertical connection cover plate, the horizontal connection cover plate B and the horizontal connection cover plate C are consistent with the construction spacing between the two beam end steel plates; each of the above-mentioned cover plates is processed with corresponding screw holes on each of the connecting plates opposite thereto; the horizontal connection cover plate A and the horizontal connection cover plate D are respectively placed on the upper and lower parts of the two adjacent upper horizontal connection plates, and are connected by high-strength bolts The horizontal connection cover plates B are respectively placed on the upper and lower parts of the two adjacent middle horizontal connection plates, and are fixedly connected by high-strength bolt pairs and nuts; the horizontal connection cover plates B and the horizontal connection cover plates C are respectively placed on the upper and lower parts of the two adjacent lower horizontal connection plates, and are fixedly connected by high-strength bolt pairs and nuts; the two upper vertical connection cover plates and the two lower vertical connection cover plates are respectively installed on the upper and lower sides of the vertical connection plates, and are fixedly connected by high-strength bolt pairs and nuts; the two opposite beam end connection structures are connected as one through the above four-part connection.

[0016] Furthermore, a 1 / 2 hole is provided at the upper part of the vertical outer edge of the vertical connection plate, and the two 1 / 2 holes of the two opposite vertical connection plates form a complete hole. The upper vertical connection cover plate is provided with holes corresponding to the holes on the vertical connection plates. The shape of the reserved hole is circular, and an elliptical hole can also be used according to factors such as the difficulty of processing and construction, cost and anchoring capacity.

[0017] The invention is characterized by a simple structure in a narrow space, which is convenient for construction. In particular, by setting the size of the bolt holes, it has a significant technical advantage in eliminating construction deviations during the component assembly process, and can better meet the needs of repeated disassembly and assembly of components for multiple uses. From a mechanical point of view, it can better solve the key technical problem of insufficient stiffness and bearing capacity of beam nodes outside the plane (horizontal) and inside the plane (vertical).

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The beam node structure for bolting the fully assembled reinforced concrete wall panels to resist vertical bending provided by the present invention has a simple structure of the steel plate component, is convenient to process, is easy to manufacture and install, can be repeatedly disassembled and assembled, can better eliminate construction deviations, improve disassembly and assembly efficiency, and enable the beam to be reused multiple times;

[0020] 2. The beam node structure provided by the present invention is used for bolting the fully assembled reinforced concrete wall panels to resist vertical bending. The ends of the longitudinal force-bearing steel bars in the beam are welded to the steel plates at the ends of the beams, so that the steel bar skeleton is accurately positioned. During the process of pouring concrete, the steel bars can be guaranteed not to be deformed or loosened, thereby ensuring the production quality of the components. At the same time, the steel plates at the ends of the beams have the functions of force-bearing components and templates, which can greatly improve the production efficiency of the components.

[0021] 3. The beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts provided by the present invention can meet the requirements of sufficient vertical bending resistance and horizontal bearing capacity of the nodes under different working conditions through the selection of steel materials and the design of bolt nodes. In particular, when there is no wall panel under the beam or no floor slab on the side of the beam, a large space structure can be realized to meet the earthquake resistance requirements.

[0022] In summary, the technical solution of the present invention solves the following problems in the prior art: 1. It cannot be reused; 2. It has a small bearing capacity and is only applicable to structures supported by wall panels; 3. It cannot ensure the safety of large spans and complex structures; 4. It cannot ensure the construction accuracy of node connections, reducing safety, etc.

[0023] Based on the above reasons, the present invention can be widely used in bolt-connected plate-beam type fully assembled multi-story buildings, especially in buildings that can be disassembled and assembled multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the beam end connection structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the beam end connection structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the assembly structure of the beam end connection structure and the connection component of the present invention.

[0029] In the figure: 1, reinforced concrete part of the beam 2, high-strength bolt pair 3, horizontal connection cover A4, longitudinal force-bearing steel bars in the beam 5, anchor steel bars 6, beam end steel plates 7, lower horizontal connection plates 8, upper horizontal connection plates 9, middle horizontal connection plates 10, connection plates 11, anchor reinforcement plates 12, upper vertical connection cover plates 13, lower vertical connection cover plates 14, horizontal connection cover plates B15, horizontal connection cover plates C16, horizontal connection cover plates D. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] As shown in the figure, the present invention provides a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts; the beam end adopts a beam end steel plate (mostly a convex shape) that is anchored with the concrete part and has the same cross-sectional shape as the beam end as the basic plate for mechanical conversion, and is tightly anchored to the concrete part of the beam end through anchoring measures. On the other side, a horizontal connecting plate and a vertical connecting plate are welded into a multi-wing connecting plate, and the connection between the two beams is connected into a whole by a bolted connection cover plate.

[0038] Further explanation is as follows: the anchoring of the beam end steel plate and the beam concrete is achieved through three technical means. The most basic form of anchoring is welding the end of the longitudinal force-bearing steel bar in the longitudinal beam to the beam end steel plate; if the anchoring capacity provided by the welded nodes formed by all the longitudinal steel bars is insufficient, the anchor steel bar is directly welded to the beam end steel plate, and its welding length and number are determined by design; when the beam end is subjected to a large load and the above two methods cannot meet the bearing capacity requirements, the anchor reinforcement plate can be welded to the beam end steel plate, and then the anchor steel bar is welded to both sides of the anchor reinforcement plate and the beam end steel plate to improve the anchoring performance. The method of welding the ends of the longitudinal stress-bearing steel bars in the longitudinal beam to the steel plates at the ends of the beams not only meets the need for steel plate anchoring, but also eliminates the problem of hook anchoring of the steel bars at the ends of the beams in the concrete, which saves steel materials compared to conventional methods. At the same time, the steel skeleton in the concrete is firmly welded to the steel plates at the ends of the beams before pouring the concrete. During the pouring of concrete, the steel bars will not shift, which greatly improves the product quality of precast concrete components. On the other hand, the steel plates at the ends of the beams are directly used as templates for pouring concrete at the ends of the beams, which saves costs and improves the efficiency of component manufacturing. The technical advantage of the above-mentioned anchoring scheme is that it can achieve a more complex technical process with a simple method on a narrow beam section, and at the same time can fully meet the anchoring requirements of structural beams within different bearing capacity ranges.

[0039] The outer side of the anchoring of the beam end steel plate is the connecting part between the beam ends. The vertical steel plate and the beam end steel plate are welded as the base plate, which not only provides the vertical bending resistance of the node (this type of node mainly bears vertical bending moment and shear force), but also serves as the base plate for welding the horizontal connection steel plate. The horizontal connection plate is divided into the upper and lower sides (upper horizontal connection plate and lower horizontal connection plate) and the middle horizontal connection plate. The width of the upper and lower horizontal connection plates is the same as the width of the beam section at this location, or it needs to be slightly narrower considering the surface decoration layer. As a whole plate, it is welded to the upper and lower ends of the vertical connection plate. The middle horizontal connection plate is welded on both sides of the vertical connection plate. Its outer width can be the same as the outer width of the beam section or it needs to be slightly narrower considering the surface decoration layer. At the same time, the horizontal connection plates are tightly welded to the beam end steel plates. There is one upper horizontal connection plate and one lower horizontal connection plate. The number of middle horizontal connection plates is determined according to the design and is arranged in parallel between the upper horizontal connection plate and the lower horizontal connection plate. The number, arrangement, size and shape of the bolt holes on the horizontal connection plate are determined by the design. The horizontal connecting plate is connected by a high-strength bolt pair through a bolt cover plate to connect the two sections of the beam into a whole. Of course, according to the design requirements, the vertical bolt cover plate is connected between the horizontal connecting plates through a high-strength bolt pair. The vertical connecting plate and the vertical bolt cover plate must reserve holes at the location of the floor slab connection bolts. In the example of this patent, the shape of the reserved hole is circular, and an elliptical hole can also be used according to factors such as the difficulty of processing and construction and the cost anchoring capacity.

[0040] Example 1

[0041] like Figure 1 As shown, the present invention provides a beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts, characterized in that the beam node structure includes: a beam end connection part, a beam end anchoring part, and a connection assembly; the beam end connection part is a vertical bending resistance structure, which is consistent with the cross-sectional shape of the beam anchored by the concrete part; the beam end connection part is fixedly connected to the front end of the beam end anchoring part by welding to form an integrated beam end connection structure; the beam end connection parts of two opposite beam end connection structures are connected as a whole by a connection assembly.

[0042] The beam end connection part includes: a beam end steel plate 6, a lower horizontal connection plate 7, an upper horizontal connection plate 8, an intermediate horizontal connection plate 9 and a vertical connection plate 10; the beam end steel plate 6 is consistent with the shape of the beam cross section (most of them are convex-shaped structures); the vertical connection plate 10 is vertically welded to the center line of the outer side of the beam end steel plate 6; the upper horizontal connection plate 8 and the lower horizontal connection plate 7 are horizontally welded to the upper and lower ends of the outer side of the beam end steel plate 6, and are welded together with the two ends of the vertical connection plate 10; an intermediate horizontal connection plate 9 is arranged on both sides of the vertical connection plate 10, and the intermediate horizontal connection plate 9 is respectively welded and fixedly connected with the vertical connection plate 10 and the beam end steel plate 6; the upper horizontal connection plate 8, the intermediate horizontal connection plate 9, the lower horizontal connection plate 7 and the vertical connection plate 10 form a structure with a Wang-shaped cross section; a plurality of screw holes are arranged on the lower horizontal connection plate 7, the upper horizontal connection plate 8, the intermediate horizontal connection plate 9 and the vertical connection plate 10.

[0043] The beam end anchoring part includes: longitudinal stress-bearing steel bars 4 in the beam, anchor steel bars 5 and anchor reinforcement plates 11; the longitudinal stress-bearing steel bars 4 in the beam, anchor steel bars 5 and anchor reinforcement plates 11 can be combined in a single form, a combination of two, or a trinity form to be welded to the inner side of the beam end steel plate 6; one end of the anchor reinforcement plate 11 is welded perpendicularly to the right side of the beam end steel plate 6; the longitudinal stress-bearing steel bars 4 in the beam are welded perpendicularly to the beam end steel plate 6; the longitudinal stress-bearing steel bars 4 in the beam are welded perpendicularly to the beam end steel plate 6; the longitudinal stress-bearing steel bars 4 in the beam are welded to the anchor reinforcement plates 1 ... When the plates 11 are combined, their sides are welded to the plate surface of the anchor reinforcement plate 11; the anchor steel bar 5 is a concave-shaped structure formed by bending steel bars, and the steel bar ends at both ends are bent inward; the concave bottom edge of the anchor steel bar 5 is welded to the beam end steel plate 6; when the anchor steel bar 5 is combined with the longitudinal force-bearing steel bars 4 in the beam and the anchor reinforcement plate 11 in pairs or in a trinity, the side of the anchor steel bar 5 is fixedly connected to the longitudinal force-bearing steel bars 4 in the beam and the side of the anchor reinforcement plate 11 by welding.

[0044] The connection assembly includes: a high-strength bolt pair 2, a horizontal connection cover plate A3, an upper vertical connection cover plate 12, a lower vertical connection cover plate 13, a horizontal connection cover plate B14 and a horizontal connection cover plate C15; the lengths of the horizontal connection cover plate A3, the upper vertical connection cover plate 12, the lower vertical connection cover plate 13, the horizontal connection cover plate B14 and the horizontal connection cover plate C15 are consistent with the construction spacing between the two beam end steel plates 6; each of the above-mentioned cover plates is processed with corresponding screw holes on each of the connecting plates opposite thereto; the horizontal connection cover plate A3 and the two horizontal connection cover plates B14 are respectively placed on the upper and lower parts of the two adjacent upper horizontal connection plates 8, and are connected by a high-strength bolt pair 2 and nuts for fixed connection; the horizontal connection cover plate B14 is respectively placed on the upper and lower parts of the two adjacent middle horizontal connection plates 9, and is fixedly connected by high-strength bolt pairs 2 and nuts; the horizontal connection cover plate B14 and the horizontal connection cover plate C15 are respectively placed on the upper and lower parts of the two adjacent lower horizontal connection plates 7, and are fixedly connected by high-strength bolt pairs 2 and nuts; the two upper vertical connection cover plates 12 and the two lower vertical connection cover plates 13 are respectively installed on the upper and lower sides of the vertical connection plate 10, and are fixedly connected by high-strength bolt pairs 2 and nuts; the two opposite beam end connection structures are connected as one through the above four-part connection.

[0045] A 1 / 2 hole is provided at the upper part of the vertical outer edge of the vertical connecting plate 10, and the two 1 / 2 holes of the two opposite vertical connecting plates 10 form a complete hole.

[0046] The upper vertical connection cover plate 12 is provided with holes corresponding to the holes on the vertical connection plate 10 .

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A beam node structure for vertical bending resistance of fully assembled reinforced concrete wall panels connected by bolts, characterized in that: The described beam joint structure includes: a beam end connection part, a beam end anchorage part, and a connection component; the beam end connection part is a vertical flexural structure, and its cross-sectional shape is the same as that of the beam section anchored to the concrete part; the beam end connection part is fixedly connected to the front end of the beam end anchorage part by welding to form an integral beam end connection structure; the beam end connection parts of two opposite beam end connection structures are connected into one body by the connection component; The described beam end connection part includes: a beam end steel plate (6), a lower horizontal connecting plate (7), an upper horizontal connecting plate (8), an intermediate horizontal connecting plate (9), and a vertical connecting plate (10); the beam end steel plate (6) has the same cross-sectional shape as the beam section; the vertical connecting plate (10) is perpendicularly welded to the center line on the outside of the beam end steel plate (6); the upper horizontal connecting plate (8) and the lower horizontal connecting plate (7) are horizontally welded to the upper and lower ends on the outside of the beam end steel plate (6) and are welded to both ends of the vertical connecting plate (10); one intermediate horizontal connecting plate (9) is arranged on each side of the vertical connecting plate (10), and the intermediate horizontal connecting plate (9) is respectively welded and fixedly connected to the vertical connecting plate (10) and the beam end steel plate (6); the upper horizontal connecting plate (8), the intermediate horizontal connecting plate (9), the lower horizontal connecting plate (7), and the vertical connecting plate (10) form a cross-sectional structure in the shape of a king character; a plurality of screw holes are arranged on the lower horizontal connecting plate (7), the upper horizontal connecting plate (8), the intermediate horizontal connecting plate (9), and the vertical connecting plate (10); The described beam end anchorage part includes: longitudinal stressed steel bars (4) in the beam, anchoring steel bars (5), and anchoring reinforcement plates (11); the longitudinal stressed steel bars (4) in the beam, the anchoring steel bars (5), and the anchoring reinforcement plates (11) are combined in a single form, or a two-by-two combination form, or a trinity form and are welded and connected to the inner side of the beam end steel plate (6); one end of the anchoring reinforcement plate (11) is perpendicularly welded and connected to the inner side of the beam end steel plate (6); the longitudinal stressed steel bars (4) in the beam are perpendicularly welded to the beam end steel plate (6); when the longitudinal stressed steel bars (4) in the beam are combined with the anchoring reinforcement plate (11), the side part thereof is welded and connected to the plate surface of the anchoring reinforcement plate (11); the anchoring steel bars (5) are in a concave-shaped structure bent from steel bars, and the steel bar ends at both ends thereof are bent inward; the concave bottom edge of the anchoring steel bars (5) is welded and connected to the beam end steel plate (6); when the anchoring steel bars (5) are combined with the longitudinal stressed steel bars (4) in the beam and the anchoring reinforcement plates (11) in a two-by-two combination form or a trinity form, the side parts of the anchoring steel bars (5) are fixedly connected to the side parts of the longitudinal stressed steel bars (4) in the beam and the anchoring reinforcement plates (11) by welding; The connection assembly comprises: a high-strength bolt pair (2), a horizontal connection cover plate A (3), an upper vertical connection cover plate (12), a lower vertical connection cover plate (13), a horizontal connection cover plate B (14), a horizontal connection cover plate C (15) and a horizontal connection cover plate D (16); the lengths of the horizontal connection cover plate A (3), the upper vertical connection cover plate (12), the lower vertical connection cover plate (13), the horizontal connection cover plate B (14), the horizontal connection cover plate C (15) and the horizontal connection cover plate D (16) are the construction spacing between the two beam end steel plates (6); each of the above-mentioned cover plates is processed with corresponding screw holes on each of the connection plates opposite thereto; the horizontal connection cover plate A (3) and the horizontal connection cover plate D (16) are respectively arranged The two upper horizontal connection plates (8) are respectively arranged at the upper and lower parts of the two adjacent upper horizontal connection plates (8) and are fixedly connected by high-strength bolt pairs (2) and nuts; the horizontal connection cover plates B (14) are respectively arranged at the upper and lower parts of the two adjacent middle horizontal connection plates (9) and are fixedly connected by high-strength bolt pairs (2) and nuts; the horizontal connection cover plates B (14) and the horizontal connection cover plates C (15) are respectively arranged at the upper and lower parts of the two adjacent lower horizontal connection plates (7) and are fixedly connected by high-strength bolt pairs (2) and nuts; the two upper vertical connection cover plates (12) and the two lower vertical connection cover plates (13) are respectively installed at both sides of the upper part and both sides of the lower part of the vertical connection plate (10) and are fixedly connected by high-strength bolt pairs (2) and nuts.

2. The beam node structure for vertical bending resistance of bolted fully assembled reinforced concrete wall panels according to claim 1 is characterized in that: A 1 / 2 hole is provided at the upper part of the vertical outer edge of the vertical connecting plate (10), and the two 1 / 2 holes of the two opposite vertical connecting plates (10) form a complete hole.

3. The beam node structure for vertical bending resistance of bolted fully assembled reinforced concrete wall panels according to claim 2 is characterized in that: The upper vertical connection cover plate (12) is provided with holes corresponding to the holes on the vertical connection plate (10).

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