Beam-column connecting joint for connecting steel beam and reinforced concrete column

Abstract

The utility model relates to a beam-column connecting node for connecting a steel beam and a reinforced concrete column, which comprises a lattice type steel framework, the lattice type steel framework comprises four pieces of column-shaped steel and a plurality of connecting web members, the four pieces of column-shaped steel are longitudinally arranged in parallel to form a column framework structure, the connecting web members are arranged between the adjacent pieces of column-shaped steel, and the connecting web members are connected with the column framework structure. The lattice type steel skeleton forms a fixed frame; the column section layers are composed of a plurality of steel plate hoops, and the steel plate hoops are connected with the adjacent column type steel and cover the four faces of the lattice type steel framework to form the closed column section layers; the embedded plate is arranged on at least one side face of the lattice type steel framework and at least comprises a column bracket web plate, and the column bracket web plate is perpendicular to the side face of the lattice type steel framework; and the at least one spacing plate is arranged on the lattice type steel framework. According to the beam-column connecting joint for connecting the steel beam and the reinforced concrete column, the steel consumption is reduced, the construction is simplified, the efficiency is improved, and the cost performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reinforced concrete column especially a beam -column connecting joint of steel beam and reinforced concrete column. BACKGROUND

[0002] Reinforced concrete column is the high performance -price ratio component in building structure, and its compressive strength is high, lateral stiffness is big, fire -resistant performance is excellent, and cost is low.

[0003] At present, the steel plate is installed at the beam -column joint for connecting cast -in -situ or prefabricated concrete column and steel beam, the pre -buried plate on the both sides of the column is connected through the tension anchor bolt in the column, and the connecting lug plate outside the pre -buried plate is connected with the steel beam. The longitudinal steel bars of the column pass through the pre -buried steel plate, and the longitudinal and transverse steel bars often collide with each other. The disadvantage of this method is that the skeleton rigidity formed by the longitudinal steel bars and stirrups of the reinforced concrete column is insufficient, and the pre -buried part cannot be accurately positioned, so the pre -buried plate and anchor bolt must be positioned on site by binding the steel bars, which is difficult to position on site, has large deviation, and has low efficiency; because the steel skeleton rigidity is insufficient, the beam load during construction cannot be borne, so the beam installation needs to wait until the column concrete pouring reaches a certain strength before installation, and the construction operation is discontinuous; because the pre -buried part installation deviation is large, the prefabricated beam (steel beam or prefabricated concrete beam) often cannot be installed, which affects the construction period and quality.

[0004] There is also a solid steel column in the prior art, which is used as a steel reinforced concrete column, and the vertical steel column extends out of the corbel and is connected with the steel beam, but often the structure steel is placed at the center position of the concrete column, cannot effectively play the tensile strength of the steel, leads to large steel content, and ordinary steel content is also large, at the same time, the beam -column joint steel has many perforations so that the longitudinal and transverse steel bars pass through, and the processing is very complex, the column steel bar and steel cannot be integrally processed in the factory, and the efficiency is very low, and the performance -price ratio is low. SUMMARY

[0005] The utility model discloses a beam -column connecting joint of steel beam and reinforced concrete column to overcome at least one of the above -mentioned problems, reduce steel consumption, simplify construction, improve efficiency and improve performance -price ratio.

[0006] The utility model discloses a beam -column connecting joint of steel beam and reinforced concrete column to overcome at least one of the above -mentioned problems, reduce steel consumption, simplify construction, improve efficiency and improve performance -price ratio.

[0007] The lattice type steel skeleton includes four column steels and a plurality of connecting web members, the four column steels are arranged longitudinally and in parallel to form a column skeleton structure, and the connecting web members are arranged between the adjacent column steels to form a fixed frame of the lattice type steel skeleton;

[0008] Multiple column sections are composed of multiple steel plate hoops that connect adjacent column sections and cover the four sides of the lattice steel skeleton to form a closed column section.

[0009] The embedded plate is provided on at least one side of the lattice steel frame and includes at least one column corbel web, the column corbel web is perpendicular to the side of the lattice steel frame, and the column corbel web is connected to at least two column segment layers;

[0010] At least one spacer plate is arranged in the lattice steel frame and connected with the steel plate hoop of the column segment layer. A large through hole is arranged in the middle of the spacer plate to connect the space areas between each spacer plate.

[0011] Preferably, the partition plate includes at least a beam surface partition plate and a beam bottom partition plate, and the beam surface partition plate and the beam bottom partition plate are respectively arranged at the column section layer at the upper and lower ends connected to the column corbel web.

[0012] Preferably, the embedded plate also includes a column corbel panel and a column corbel bottom plate, which are respectively arranged at the upper and lower ends of the column corbel web; the column corbel panel and the column corbel bottom plate are respectively welded to the steel plate hoops of the column section layer, and the embedded plate is an "I"-shaped structure.

[0013] Preferably, the column corbel web is provided with a plurality of web reserved bolt holes.

[0014] Preferably, the column corbel panel, column corbel web and column corbel bottom plate are welded and fixed.

[0015] Preferably, additional steel bars are included, including a plurality of longitudinally arranged column longitudinal bars. The plurality of steel bars are enclosed on the outside of the lattice steel frame and avoid the embedded plates. If necessary, the column longitudinal bars can also pass through the upper and lower steel plates of the corbel. Column stirrups are provided along the outer periphery of the column longitudinal bars.

[0016] The beneficial effects of the utility model are as follows: a beam-column connection node for connecting a steel beam and a reinforced concrete column has the following advantages:

[0017] 1) The node structure is simple;

[0018] 2) Made in the factory, fast, efficient, precise and can be installed on site;

[0019] 3) Less on-site work and high construction efficiency;

[0020] 4) During construction, the vertical and lateral stiffness is good and can withstand large construction loads. The horizontal structure does not need to be supported separately, which speeds up construction.

[0021] 5) The floor slabs and columns are made of cast-in-place concrete, with good overall shape;

[0022] 6) The steel plate hoops and column stirrups at the column nodes are completely wrapped in the column or precast beam concrete, and no additional fire protection treatment is required

[0023] 7) Low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the beam-column connection node connecting the steel beam and the reinforced concrete column described in the present invention;

[0026] Figure 2 This is a schematic diagram of the top view of the structure of the beam-column connection node of the utility model connecting the steel beam and the reinforced concrete column;

[0027] Figure 3 This is a schematic diagram of a top view of the middle part of a column structure in which a steel beam is connected to a reinforced concrete column according to the present invention;

[0028] Figure 4 It is a structural schematic diagram of the installation state of the beam-column connection node connecting the steel beam and the reinforced concrete column described in the utility model.

[0029] Description of the drawings: 1. Concrete column, 2. Column steel, 3. Connecting web, 4. Steel plate hoop, 5. Column corbel web, 6. Column corbel bottom plate, 7. Column corbel panel, 8. Reserved bolt holes in web, 9. Beam bottom partition, 10. Beam surface partition, 11. Column longitudinal reinforcement, 12. Column stirrups. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It is to be understood that the terminology used herein such as first and second, and the like, is merely intended to differentiate one entity or operation from another, without necessarily requiring or implying any actual such relationship or order between such entities or operations. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0032] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments and that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents. As Figures 1-3 The beam-column connection joint shown is connected with the steel beam and the reinforced concrete column, and is composed of a lattice steel skeleton, a steel plate hoop 4, a pre-buried plate, and a spacer plate, to form a fixed frame.

[0033] A part of the longitudinal steel of the column is replaced by an angle steel / profile steel, which is placed at four column corner positions to form a steel skeleton, and is connected by a connecting web 3 (straight web, diagonal web angle steel, steel strip, C-shaped steel, etc.) to form a frame-shaped profile steel skeleton, which can bear the vertical load in the construction stage; and a certain number of small-diameter column longitudinal steel 11 are arranged on the outer periphery of the lattice steel skeleton to form an outer skeleton, and are connected with the column hoop steel 12. Specifically, the lattice steel skeleton includes four column profile steels 2 and a plurality of connecting webs 3, the four column profile steels 2 are arranged longitudinally and in parallel to form a column skeleton structure, and the connecting webs 3 are arranged between adjacent column profile steels 2 to form a fixed frame of the lattice steel skeleton.

[0034] A plurality of column section layers, which are in close contact with the profile steel parts within the beam height range, are surrounded by the steel plate hoops 4 to form a closed node skeleton, the steel plate hoops 4 are distributed along the beam height N blocks (not less than 2 blocks), and a certain gap is left between the steel plate hoops 4 to facilitate the connection of the internal and external (beams or columns) concrete into a whole. Specifically, four steel plate hoops 4 are arranged, the steel plate hoops 4 are connected with adjacent column profile steels 2, cover four sides of the lattice steel skeleton, and form a closed column section layer.

[0035] Weld an embedded plate for an inverted T-shaped or H-shaped corbel to the vertical centerline of the precast beam outside the column segment layer (the corbel bottom and top plates are consistent with the width of the connected beam, and the height is consistent with the height of the precast beam). Specifically, the embedded plate is set on one or more side surfaces of the lattice steel skeleton and consists of a column corbel web 5, a column corbel face plate 7, and a column corbel bottom plate 6. The column corbel web 5 is perpendicular to the side surface of the lattice steel skeleton and spans at least two column segment layers. The column corbel face plate 7 and the column corbel bottom plate 6 are respectively connected to the steel plate hoops 4 of different column segment layers, forming an "I" shape structure.

[0036] A square or rectangular partition is set in the middle of the column section layer, and a large through hole is opened in the middle of the partition to connect the space areas between each partition, which is convenient for pouring concrete. The partition is attached to the inner wall of the steel plate hoop 4 and welded to form a whole.

[0037] In one embodiment, the partition plate includes a beam surface partition plate 10 and a beam bottom partition plate 9, and the beam surface partition plate 10 and the beam bottom partition plate 9 are respectively arranged in the column section layer of the top layer and the column section layer of the bottom layer.

[0038] See also Figure 1 、 3 The column corbel web 5 is provided with a plurality of web reserved bolt holes 8, and the column corbel panel 7, the column corbel web 5, and the column corbel bottom plate 6 are welded and fixed.

[0039] In this embodiment, the additional reinforcement in the beam-column connection between the steel beam and the reinforced concrete column consists of multiple longitudinal column bars 11 arranged longitudinally around the outside of the lattice steel skeleton, avoiding the embedded plates. However, if necessary, the column longitudinal bars 11 can also pass through the upper and lower steel plates of the reserved corbels. Column stirrups 12 are arranged around the outer perimeter of the column longitudinal bars. The column longitudinal bars 11 and column stirrups 12 are connected to form the outer skeleton.

[0040] In this embodiment, the column steel 2, steel plate hoops 4, embedded plates, additional steel bars, etc. are manufactured and welded and fixed in the factory. The prefabricated beams are H-shaped, U-shaped, box-shaped, etc. steel beams.

[0041] The beam-column connection nodes and steel beams connecting the steel beams and reinforced concrete columns are installed on site. After the beam-column connection nodes connecting the steel beams and reinforced concrete columns are completed, they are installed on site by machinery. At the same time, the steel beams are installed and fixed. The steel webs at the ends of the steel beams are overlapped with the embedded plates of the column steel 2 corbel webs, and the bolts are inserted into the preset bolt holes and tightened.

[0042] See also Figure 4 When precast concrete composite beams are used, additional steel bars are installed on the beam surface and pass through the column layer to form a rigid connection node.

[0043] See also Figure 1The steel beams of this invention are installed on the skeleton columns with beam-column joints. Column formwork is then installed on site, and concrete is poured to below the beam bottom elevation. The beam-surface floor slab is installed and concrete is poured to form the structure. The precast concrete beam ends (including the steel sections) are concreted simultaneously with the column joints and floor slabs to form the integral beam-column joint.

[0044] The steel plate hoops 4 and column stirrups 12 of the column nodes are completely wrapped in the concrete of the column or precast beam and do not require additional fireproofing treatment.

[0045] It has the following advantages:

[0046] 1) The node structure is simple;

[0047] 2) Made in the factory, fast, efficient, precise and can be installed on site;

[0048] 3) Less on-site work and high construction efficiency;

[0049] 4) During construction, the vertical and lateral stiffness is good and can withstand large construction loads. The horizontal structure does not need to be supported separately, which speeds up construction.

[0050] 5) The floor slabs and columns are made of cast-in-place concrete, with good overall shape;

[0051] 6) Low cost.

[0052] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A beam-column connection node for connecting a steel beam to a reinforced concrete column, characterized in that: include: A lattice steel frame, comprising four column steels and a plurality of connecting web members, wherein the four column steels are arranged longitudinally and parallel to form a column frame structure, and connecting web members are provided between adjacent column steels, so that the lattice steel frame forms a fixed frame; Multiple column sections are composed of multiple steel plate hoops that connect adjacent column sections and cover the four sides of the lattice steel skeleton to form a closed column section. The embedded plate is provided on at least one side of the lattice steel frame and includes at least one column corbel web, the column corbel web is perpendicular to the side of the lattice steel frame, and the column corbel web is connected to at least two column segment layers; At least one spacer plate is arranged in the lattice steel frame and connected with the steel plate hoop of the column segment layer. A large through hole is arranged in the middle of the spacer plate to connect the space areas between each spacer plate.

2. The beam-column connection node for connecting a steel beam to a reinforced concrete column according to claim 1, characterized in that: The partition plate includes at least a beam surface partition plate and a beam bottom partition plate, which are respectively arranged in the column section layer at the upper and lower ends and correspond to the upper and lower ends connected to the column corbel web.

3. The beam-column connection node for connecting a steel beam to a reinforced concrete column according to claim 1, characterized in that: The embedded plate also includes a column corbel panel and a column corbel bottom plate, which are respectively arranged at the upper and lower ends of the column corbel web; the column corbel panel and the column corbel bottom plate are respectively welded to the steel plate hoops of the column section layer, and the embedded plate presents an "I"-shaped structure.

4. The beam-column connection node for connecting a steel beam to a reinforced concrete column according to claim 3, characterized in that: The column corbel web is provided with a plurality of web reserved bolt holes.

5. The beam-column connection node for connecting a steel beam to a reinforced concrete column according to claim 4, characterized in that: The column corbel panel, column corbel web and column corbel bottom plate are welded and fixed.

6. The beam-column connection node for connecting a steel beam to a reinforced concrete column according to claim 4, characterized in that: It also includes additional steel bars, including a plurality of longitudinally arranged column longitudinal bars. The plurality of steel bars are enclosed on the outside of the lattice steel skeleton, and column stirrups are arranged along the outer periphery of the column longitudinal bars.

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