Steel reinforced concrete beam and concrete column rigid connection node connecting structure

Abstract

The utility model relates to a steel reinforced concrete beam and concrete column rigid connection node connection structure, which relates to the technical field of building structure node connection, and comprises a plurality of steel reinforced concrete beams and a concrete column, and the steel reinforced concrete beams are fixedly connected with a plurality of first anti-shear studs; the multiple concrete columns are all perpendicular to the steel reinforced concrete beam, section steel column cores are fixedly arranged in the concrete columns, the side portions of the section steel column cores are fixedly connected with multiple second shear-resistant studs, and the ends of the steel reinforced concrete beam are fixedly connected with the section steel column cores through stiffening plates. And a welding seam is arranged at the right-angle joint of the steel reinforced concrete beam and the section steel column core. According to the utility model, the stress of the whole structure is more stable, so that the arrangement quantity of trusses and cantilever structures is reduced, the material cost is reduced, the construction cost is further reduced, the structure can be installed in advance, the construction difficulty is reduced, the construction period can be further shortened, and the construction operation time is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building structure node connection, and specifically discloses a rigid node connection structure of a steel concrete beam and a concrete column. Background Art

[0002] The emergence of cantilever structures has had a huge impact on the artistic modeling of modern architecture and has endowed modern architecture with a strong artistic expression. The use of cantilever structures has gradually become a common means of modern architectural modeling and is often used in important parts such as eaves, external balconies, and corridors. In many cases, the use of cantilever structures enables buildings to gain open space and further extend the architectural space. In contemporary architecture, the span of cantilever is getting larger and larger, and the buildings used are all-encompassing. Cantilever structures have a high influence on modern architecture. By adjusting the expression of cantilever structures, the outline of the building can be enriched and a good spatial atmosphere can be flexibly created.

[0003] At present, the structural forms used in large bays and large cantilevered spaces in the fields of industrial and civil construction often adopt cantilevered plane trusses, cantilevered space truss structures, cantilevered open-web trusses, post-tensioned prestressed reinforced concrete cantilevered beams, steel-concrete cantilevered beams + steel-concrete columns, and cantilevered beams. In recent years, some multi-story buildings have higher requirements for cantilever structures, requiring both a large enough cantilever size and meeting the requirements of cantilevered space, so space division is not allowed. This situation will cause some commonly used truss structures to fail to meet the use requirements, and the available options are usually post-tensioned prestressed reinforced concrete cantilevered beams, steel-concrete cantilevered beams plus steel-concrete columns.

[0004] Prestressed technology is currently widely used, but it has many problems. The use of prestressed reinforced concrete cantilever beam structure can give full play to the characteristics of steel bars and concrete, improve the stiffness, crack resistance and durability of reinforced concrete components, and effectively utilize the role of high-strength steel bars and high-strength grade concrete, but under the same conditions, it cannot improve the bending bearing capacity of its cross section compared with ordinary concrete. However, prestressed concrete construction requires special machinery and equipment, the process is relatively complex, and the operation requirements are high. The height of the engineering cantilever from the ground is often high, and it is difficult to implement prestressed construction at the cantilever. The problem solved by the cantilever beam is mainly the root force problem, while the prestressing is generally to solve the tensile stress problem in the span of the beam. At present, the most worrying thing about post-tensioning prestressing technology is the failure of the anchor, and after decoration, the anchor is hidden under the decorative layer. Moreover, the actual users of the building usually do not have the awareness of regular inspection and maintenance of the anchor. There is no regular inspection mechanism for prestressed technology in the field of construction engineering, and the security loopholes here are more obvious.

[0005] The combination of a steel reinforced concrete cantilever beam and a steel reinforced concrete column can have a cantilever beam length of more than 8m, and the vertical cantilever load is transferred from the cantilever beam to the steel reinforced concrete column. If an ordinary reinforced concrete beam is used, when there are potential safety hazards in the ultimate bearing capacity and serviceability limit state of the cantilever beam due to various adverse factors during construction and use, irreparable consequences will occur, and its seismic performance is relatively poor. The combination of a steel reinforced concrete beam and a steel reinforced concrete column can well solve the above problems. However, the construction of the steel reinforced concrete column is difficult, especially the installation and positioning of column base anchor bolts, the hoisting of steel columns, the installation and positioning of steel columns, and the installation accuracy are all key issues that require technicians to strengthen management during the construction process. There are also certain technical hidden dangers, resulting in higher construction costs and greater construction difficulties. For small-scale multi-story building scenarios, the increased costs for the construction unit become a relatively prominent problem. Summary of the Utility Model

[0006] Aiming at the problems of relatively high construction costs and great construction difficulties existing in the construction process of the combination of a steel reinforced concrete cantilever beam and a steel reinforced concrete column, the present utility model provides a rigid connection joint structure between a steel reinforced concrete beam and a concrete column.

[0007] To solve the above problems, the present utility model provides the following technical solutions:

[0008] A rigid connection joint structure between a steel reinforced concrete beam and a concrete column, comprising a steel reinforced concrete beam and a concrete column. There are multiple steel reinforced concrete beams, all of which are arranged horizontally in parallel. Multiple first shear studs are fixedly connected inside the steel reinforced concrete beam; there are multiple concrete columns, all of which are arranged perpendicular to the steel reinforced concrete beam. A steel column core is fixedly arranged inside the concrete column. Multiple second shear studs are fixedly connected to the side of the steel column core. The end of the steel reinforced concrete beam is tightly connected to the steel column core through a stiffening plate. A weld for tight connection is provided at the right-angle intersection of the steel reinforced concrete beam and the steel column core.

[0009] Preferably, the stiffening plate is in a right-angle plate shape. Connecting plates are arranged on the outer side surfaces of the stiffening plates. High-strength bolts are fixedly installed inside the connecting plates, and the high-strength bolts are tightly connected to the steel reinforced concrete beam and the steel column core.

[0010] Preferably, the steel reinforced concrete beam is an I-beam, and the first shear studs are arranged in two rows and symmetrically arranged on the top and bottom surfaces of the inner side of the flange of the steel reinforced concrete beam.

[0011] Preferably, the distance between two steel reinforced concrete beams is the same as the length of the steel column core.

[0012] Preferably, the first and second shear studs are made of ML15AL steel, and the diameters of the first and second shear studs are both greater than 19 mm and the length before welding is greater than 90 mm.

[0013] Preferably, the steel reinforced concrete beam, the steel column core, and the stiffening plate are all made of Q355B steel.

[0014] Preferably, the concrete used in the steel reinforced concrete beam and the concrete column has a compressive strength grade greater than C30.

[0015] Preferably, the quality of the weld seam meets the requirements of secondary welds.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] In the present utility model, the cooperation and installation of the steel reinforced concrete beam and the first shear stud can improve the stability of the overall structure of the steel reinforced concrete beam. By inserting a steel column core into the concrete column, the steel reinforced concrete beam and the steel column core are rigidly connected. At the same time, the second shear stud is cooperatively installed on the steel column core, which can further strengthen the stability of the rigid connection structure between the steel reinforced concrete beam and the concrete column. The steel column core can transfer the vertical load of the steel concrete beam to the concrete column, thereby making the overall structure more stable in force, reducing the arrangement quantity of the truss and cantilever structures, reducing the material cost, further reducing the construction cost, and the structure in the present utility model can be pre-installed, reducing the construction difficulty, further shortening the construction period, effectively reducing the construction operation time, so it has a very wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts;

[0019] Figure 1 It is a schematic side sectional view of the overall structure of the present utility model;

[0020] Figure 2 is Figure 1 a schematic enlarged view of the structure at A in

[0021] In the figure: 1. Steel reinforced concrete beam, 2. Concrete column, 3. First shear stud, 4. Steel column core, 5. Second shear stud, 6. Stiffening plate, 7. Weld seam, 8. Connecting plate, 9. High-strength bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this patent.

[0023] This specific embodiment provides a rigid connection structure between a steel reinforced concrete beam and a concrete column, as Figures 1-2 shown; it includes a steel reinforced concrete beam 1 and a concrete column 2. Multiple steel reinforced concrete beams 1 are provided and are all arranged horizontally in parallel. Multiple first shear studs 3 are fixedly connected inside the steel reinforced concrete beam 1; the steel reinforced concrete beam 1 is an I-beam, and two rows of first shear studs 3 are provided and symmetrically arranged on the top and bottom surfaces of the inner side of the flange of the steel reinforced concrete beam 1, so as to ensure the density of the arrangement of the first shear studs 3.

[0024] Multiple concrete columns 2 are provided and are all arranged perpendicular to the steel reinforced concrete beam 1. A steel column core 4 is fixedly arranged inside the concrete column 2. Multiple second shear studs 5 are fixedly connected to the side of the steel column core 4. The end of the steel reinforced concrete beam 1 is tightly connected to the steel column core 4 through a stiffening plate 6. The stiffening plate 6 is a right-angled plate structure. Connecting plates 8 are arranged on the outer side plate surfaces of the stiffening plate 6. High-strength bolts 9 are fixedly installed inside the connecting plates 8, and the high-strength bolts 9 are tightly connected to the steel reinforced concrete beam 1 and the steel column core 4.

[0025] A weld 7 for tightly connecting is provided at the right-angled intersection of the steel reinforced concrete beam 1 and the steel column core 4; the quality of the weld 7 meets the requirements of secondary welds, thereby further improving the stability of the rigid connection structure of the joint.

[0026] Among them, the distance between two steel reinforced concrete beams 1 is the same as the length of the steel column core 4. The materials of the first shear studs 3 and the second shear studs 5 are ML15AL steel. The diameters of the first shear studs 3 and the second shear studs 5 are both greater than 19 mm and the length before welding is greater than 90 mm, so as to ensure the stability of the connection of the first shear studs 3 and the second shear studs 5.

[0027] In addition, the materials of the steel reinforced concrete beam 1, the steel column core 4, and the stiffening plate 6 are all Q355B steel. The compressive strength grade of the concrete used for the steel reinforced concrete beam 1 and the concrete column 2 is greater than C30.

[0028] When constructing the rigid connection node connection structure in the present utility model, the steel bars of the concrete column 2 are pre-tied. The steel reinforced concrete beam 1 and the steel column core 4 are pre-connected in the on-site steel structure processing shed, and then hoisted to the corresponding positions by a crane. The on-site workers accurately position the steel components according to the requirements of the design documents and then carry out the installation. After the steel structure is installed, the steel bars of the beam and slab can be tied. After all the above work has been inspected and accepted by the supervision unit, the concrete can be poured to complete the construction of the overall steel structure.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rigid connection structure between a steel reinforced concrete beam and a concrete column, comprising a steel reinforced concrete beam (1) and a concrete column (2), characterized in that, The profiled steel concrete beam (1) is provided with multiple pieces, all of which are arranged horizontally and in parallel. Multiple first shear studs (3) are fixedly connected inside the profiled steel concrete beam (1); the concrete column (2) is provided with multiple pieces, all of which are arranged perpendicular to the profiled steel concrete beam (1). A profiled steel column core (4) is fixedly arranged inside the concrete column (2). Multiple second shear studs (5) are fixedly connected to the side of the profiled steel column core (4). The end of the profiled steel concrete beam (1) is tightly connected to the profiled steel column core (4) through a stiffening plate (6). A weld seam (7) for tight connection is arranged at the right-angle intersection of the profiled steel concrete beam (1) and the profiled steel column core (4).

2. The rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The stiffening plate (6) is in a right-angled plate structure. Connecting plates (8) are arranged on the outer side plate surfaces of the stiffening plate (6). High-strength bolts (9) are fixedly installed inside the connecting plates (8). The high-strength bolts (9) are tightly connected to the profiled steel concrete beam (1) and the profiled steel column core (4).

3. The rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The profiled steel concrete beam (1) is an I-beam. The first shear studs (3) are arranged in two rows and symmetrically arranged on the top and bottom surfaces of the inner side of the flange of the profiled steel concrete beam (1).

4. A rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The distance between two profiled steel concrete beams (1) is the same as the length of the profiled steel column core (4).

5. A rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The materials of the first shear studs (3) and the second shear studs (5) are ML15AL steel. The diameters of the first shear studs (3) and the second shear studs (5) are both greater than 19 mm and the length before welding is greater than 90 mm.

6. The rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that The materials of the profiled steel concrete beam (1), the profiled steel column core (4), and the stiffening plate (6) are all Q355B steel.

7. A rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The compressive strength grade of the concrete used for the profiled steel concrete beam (1) and the concrete column (2) is greater than C30.

8. A rigid connection structure between a steel reinforced concrete beam and a concrete column according to claim 1, characterized in that, The quality of the weld seam (7) meets the requirements of a secondary weld seam.

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