阅读说明：本技术 一种钢与混凝土组合结构的梁柱节点及安装方法 (Beam-column joint of steel and concrete combined structure and mounting method ) 是由 陈志江 覃祚威 李慧 周荣富 于 2021-09-07 设计创作，主要内容包括：一种钢与混凝土组合结构的梁柱节点,包括竖向设置的组合柱、两个分别设置在所述组合柱相对两个侧面的用于连接横梁的连接构件,所述组合柱包括钢制架体,所述钢制架体具有两个相对设置的用于与所述连接构件连接的翼缘板,两个所述翼缘板之间填充有混凝土,所述混凝土靠近所述翼缘板侧面的位置埋设有多个与翼缘板连通的连接柱,所述连接构件上设置有连接件,所述连接件与所述连接柱螺纹连接,以将所述连接构件固定于所述翼缘板上,本发明的有益效果在于,解决了焊接造成混凝土开裂的问题,并且通过连接柱连接孔外设使得连接构件在组合柱外部施工即可,实现了组合柱可全工厂预制,解决了现场浇筑耽误施工进度,污染施工环境的问题。(The invention discloses a beam column node of a steel and concrete combined structure, which comprises a vertically arranged combined column and two connecting members which are respectively arranged on two opposite side surfaces of the combined column and are used for connecting a cross beam, wherein the combined column comprises a steel frame body, the steel frame body is provided with two flange plates which are oppositely arranged and are used for connecting with the connecting members, concrete is filled between the two flange plates, a plurality of connecting columns which are communicated with the flange plates are embedded in the positions, close to the side surfaces of the flange plates, of the concrete, connecting pieces are arranged on the connecting members, and the connecting pieces are in threaded connection with the connecting columns so as to fix the connecting members on the flange plates. The problems that the construction progress is delayed and the construction environment is polluted in the field pouring are solved.)

1. A beam column node of a steel and concrete combined structure comprises a vertically arranged combined column (1), two connecting members (2) which are respectively arranged on two opposite side surfaces of the combined column (1) and are used for connecting a cross beam (5), the combined column (1) comprises a steel frame body (11), the steel frame body (11) is provided with two flange plates (111) which are oppositely arranged and used for being connected with the connecting component (2), concrete (12) is filled between the two flange plates (111), characterized in that a plurality of connecting columns (3) communicated with the flange plates (111) are embedded in the concrete (12) close to the side surfaces of the flange plates (111), the connecting member (2) is provided with a connecting piece (4), the connecting piece (4) is in threaded connection with the connecting column (3), to fix the connecting member (2) to the flange plate (111).

2. A beam-column joint of a steel and concrete composite structure according to claim 1, characterized in that the connecting column (3) is hollow, the connecting member (4) comprises a connecting rod (41) in a cylindrical shape, the connecting rod (41) is inserted into the connecting column (3) from the outside of the flange plate (111) and is in threaded connection with the connecting column (3).

3. A beam-column joint of a steel and concrete composite structure according to claim 2, characterized in that said connecting rod (41) penetrates said connecting member (2) and a portion of the penetration is screwed with an abutting structure (42), said abutting structure (42) abuts against said connecting member (2) to fix said connecting member (2) against said flange plate (111).

4. A steel and concrete composite structural beam and column node according to claim 3, wherein said connecting member (2) has a mounting plate (21), and said abutting structure (42) abuts against said mounting plate (21) to secure said mounting plate (21) against the side of said flange plate (111).

5. A beam-column joint of a combined steel and concrete structure according to claim 2, characterised in that the connecting column (3) is welded to the flange plate (111).

6. A beam-column joint of a combined steel and concrete structure according to claim 2, characterised in that the end of the connecting column (3) remote from the flange plate (111) is closed.

7. A beam-column joint of a steel and concrete composite structure according to claim 2, characterized in that a liquid adhesive is filled between the connecting rod (41) and the connecting column (3).

8. A beam-column node of a steel and concrete composite structure according to claim 4, characterized in that said connecting rod (41) is arranged through said tightening structure (42) and the part of the through going is riveted with said tightening structure (42).

9. A steel and concrete composite structural beam-column node according to claim 4, wherein said connecting member (2) further has two connecting plates (22) for fixing the cross beam (5), and said two connecting plates (22) are vertically fixed to the middle position of the upper and lower ends of said mounting plate (21).

10. A method of installing a beam column node of a steel and concrete composite structure according to any one of claims 1 to 9, characterised by the steps of:

s1: fixedly mounting the prefabricated combined column (1);

s2: placing the connecting component (2) on the side surface of the flange plate (111) in a fitting manner;

s3: screwing the connecting rod (41) of the connecting piece (4) into the connecting column (3) for fixing;

s4: screwing the abutting structure (42) into a part of the connecting rod (41) penetrating through the connecting member (2) and abutting against the mounting plate (21);

s5: -fixing a cross-beam (5) to the connection plate (22).

Technical Field

The invention relates to the field of assembly type building engineering, in particular to a beam-column joint of a steel and concrete combined structure and an installation method.

Background

In order to implement a green development concept, improve the quality and quality of construction engineering, promote deep integration of the construction industry and informatization industrialization, realize reformation of the construction industry, culture of new industry and new functions, realize sustainable development of the construction industry, and vigorously popularize assembled buildings in China.

The basic form of the cross section of the partially-coated steel-concrete combined structure is that concrete is filled between flanges of the H-shaped steel member, so that the problems of fire prevention, corrosion prevention and sound insulation of the fabricated steel structure are solved, simultaneously, the safe reliability of the earthquake resistance and the vertical joint of the fabricated concrete structure is improved, the comfort level of building use is improved, and the installation performance of the structure is ensured.

The beam column node of traditional part cladding steel-concrete integrated configuration is fixed to H shaped steel component through the welded mode usually, but the concrete solidification initial strength is lower, during beam column node welding, the welding junction temperature is very high, the concrete that is close to the welding position is because the effect of high temperature takes place plastic shrinkage easily, just also because welding temperature is higher, moisture in the quick concrete of taking away, the condition that the fracture appears in the concrete near just so leading to the welding position easily, influence the security performance of beam column.

The prior Chinese patent publication No. CN204781363U discloses a novel anti-seismic beam-column joint of a steel and concrete combined structure, which comprises a combined column with a rectangular cross section, wherein the combined column is composed of an I-shaped steel column and a concrete column filled inside the I-shaped steel column, the side part of the combined column is provided with an I-shaped steel beam, the side surfaces of the combined column joint column body are welded with side limiting plates, the I-shaped steel column of the combined column is in bolted connection with a lower overhanging end plate, and the lower overhanging end plate is provided with an upper hammer head and a lower hammer head, the application adopts a bolt connection mode to solve the problem that concrete at the welding position is easy to crack when welding is carried out on site between a connecting member and the combined column flange of the traditional beam-column joint, and also solves the problems that the welding residual stress is large, the anti-seismic performance is poor, but by adopting the full bolt connection mode, a constructor needs to tighten bolts between the flanges filled with concrete when the connecting member is installed, therefore, the combined column cannot be prefabricated in advance at the position where the connecting member needs to be installed, the installation position needs to be reserved so as to facilitate installation of the connecting member, concrete at the connection part needs to be poured and constructed on site, working procedures are increased, construction progress is influenced, construction period is delayed, pollution to the construction environment is easily caused by stirring concrete in site construction, and cleaning is inconvenient.

Disclosure of Invention

In order to solve the technical problems, the invention provides a beam column node of a steel and concrete combined structure and an installation method thereof.

The invention is realized by the following technical scheme:

the utility model provides a beam column node of steel and concrete integrated configuration, includes that combination column, two of vertical setting set up respectively the combination column is relative two sides be used for connecting the connecting elements of crossbeam, the combination column includes the steel support body, the steel support body have two relative settings be used for with the flange board that connecting elements connects, two it has the concrete to fill between the flange board, the concrete is located the position of flange board side has buried a plurality of spliced poles with flange board intercommunication underground, be provided with the connecting piece on the connecting elements, the connecting piece with spliced pole threaded connection, with will the connecting elements is fixed in on the flange board.

Compared with the prior art that a welding connection mode is adopted, the invention has the advantages that the threaded connection operation is simple and convenient, the process is simple, and the operation process of constructors is simplified, on the other hand, the welding mode is adopted, the welding position of the connecting component needs high temperature to melt welding flux in the installation process, so that the surface moisture of the concrete around the welding position is quickly evaporated due to the high temperature in a short time, the surface of the concrete is easy to generate plastic shrinkage, the surface of the concrete is cracked, the strength and the safety of the combined column are influenced, in addition, the threaded connection of the connecting column and the connecting component is adopted for connection, the connecting column for installing the connecting component on the flange plate can be embedded in the concrete, the installation end of the connecting column is communicated with the flange plate, and the connecting component only needs to be operated outside the flange plate when being installed, the combination column does not need to reserve an installation space at a connection position for installing bolts, so that concrete between the flange plates of the combination column can be completely prefabricated in a factory without being configured and poured to a construction site, on one hand, the operation procedures of the construction personnel on the site are reduced, the construction progress is accelerated, the construction period is shortened, the labor cost is reduced, on the other hand, the environment pollution to the construction site is caused by on-site concrete preparation, and the concrete is difficult to clean after solidification.

As a further improvement of the invention, the connecting column is hollow, and the connecting piece comprises a connecting rod in a cylindrical shape, which is inserted into the connecting column from the outer side of the flange plate and is in threaded connection with the connecting column.

As a further improvement of the present invention, the connecting rod penetrates through the connecting member, and a penetrating portion is in threaded connection with a abutting structure, and the abutting structure abuts against the connecting member to fix the connecting member against the flange plate.

As a further improvement of the invention, the connecting member has a mounting plate, and the abutting structure abuts against the mounting plate to fix the mounting plate abutting against the side face of the flange plate.

As a further improvement of the invention, the connecting column is welded and fixed with the flange plate.

As a further development of the invention, the connecting column is arranged closed at the end remote from the flange plate.

As a further improvement of the invention, a liquid adhesive is filled between the connecting rod and the connecting column.

As a further improvement of the invention, the connecting rod penetrates through the abutting structure, and the penetrating part is riveted with the abutting structure.

As a further improvement of the invention, the connecting member is also provided with two connecting plates for fixing the cross beam, and the two connecting plates are vertically fixed at the middle positions of the upper end and the lower end of the mounting plate.

The method for installing the beam-column joint of the steel and concrete combined structure is characterized by comprising the following steps of:

s1: fixedly mounting the prefabricated combined column;

s2: placing the connecting member on the side surface of the flange plate in a fitting manner;

s3: screwing the connecting rod of the connecting piece into the connecting column for fixing;

s4: screwing the abutting structure into the part of the connecting rod penetrating through the connecting component and screwing the abutting structure into the part abutting against the mounting plate;

s5: securing a cross-member to the web

The invention has the beneficial effects that:

(1) adopt spliced pole and connecting piece to connect combination post and connecting element, avoided the concrete because the welding high temperature causes plastic shrinkage, be located the condition that the fracture appears in the peripheral concrete surface of welding position, can effectual improvement combination post's intensity and security performance to for welded construction method, adopt threaded connection operation simpler, and the security is higher relatively.

(2) The combined column and the connecting component are connected by adopting the threaded connection of the connecting column and the connecting piece, the flange plate is provided with the connecting column which is embedded in the concrete and communicated with the flange plate, a constructor only needs to screw the connecting rod and abut against the structure on the outer side of the flange plate to install the connecting component, the position of the combined column for connecting with the connecting component does not need to reserve an installation space for assembling bolts, the combined column can be prefabricated in advance in a factory without a residual part in situ, the site operation procedures of the constructor are reduced, the construction efficiency can be effectively improved, the construction period is shortened, the labor cost is saved, and the construction site can realize full-assembly decoration, the pollution of site environment caused by in-situ concrete modulation is avoided, and the inconvenience of solidification and cleaning is avoided.

(3) Adopt the mode of liquid adhesive and riveting to carry out locking to the threaded connection of spliced pole and connecting piece, the connection of beam column is comparatively important, and threaded connection is easy not hard up after suffering repeated impact, adopts these modes to carry out locking to the connection of connecting rod and spliced pole, can effectually improve the joint strength of connecting between the beam column to even make in earthquake frequent area also can connect more stable, the connection inefficacy that appears easily causes the loss.

(4) The spliced pole is connected and buries underground in the inside terminal surface of concrete and seal the setting through welded mode and flange board, and on the concrete entered into inside helicitic texture when avoiding filling the concrete, influence the installation of connecting rod, when delaying, also can improve the stability of connecting simultaneously.

(5) Through the mode of burying the spliced pole in the concrete underground, it can be prefabricated in advance at the mill to have realized the combination column, and during site operation, constructor only need with the connecting element laminating in the flange board outside, then it is fixed with the connecting rod screw in spliced pole of connecting piece, at last will support tight structure and revolve to the connecting rod, screw to the mounting panel laminating with the connecting element, support the mounting panel tightly fixed on the flange board, compare in prior art adoption full bolted connection, it is more convenient to need all to revolve the mode operation of nut in flange board inside and outside both sides, can significantly reduce the installation man-hour of connecting element, and the construction efficiency is improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic plan view of FIG. 1;

FIG. 3 is a schematic view showing an internal structure of a coupling position of the combination post and the coupling member of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a schematic top view of FIG. 1;

1-a combination column; 11-a steel frame body; 111-a flange plate; 112-a web; 12-concrete; 2-a connecting member; 21-mounting a plate; 22-a connecting plate; 3-connecting a column; 4-a connector; 41-a connecting rod; 42-a resisting structure; 5-a cross beam; 6-reinforcing plate.

Detailed Description

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.

Referring to fig. 1 to 4, a beam-column node of a steel-concrete composite structure includes a combination column 1, a connecting member 2, and a cross beam 5, where the combination column 1 is vertically disposed, the connecting member 2 is respectively disposed on two opposite side surfaces of the combination column 1 and is used for connecting the cross beam 5, the combination column 1 includes a steel frame 11 and concrete 12 filled between the steel frame 11, in this embodiment, the steel frame 11 is made of i-steel, the steel frame 11 includes two flange plates 111 disposed opposite to each other and a web plate 112 connected to a middle position of the two flange plates 111, the flange plates 111 are used for connecting the connecting member 2, the concrete 12 is filled between the two flange plates 111, and a plurality of connecting columns 3 communicated with the flange plates 111 are embedded near the side surfaces of the flange plates 111, and the connecting member 2 is provided with a connecting piece 4, the cavity of spliced pole 3 sets up, connecting piece 4 is including being cylindric connecting rod 41, connecting rod 41 follows the outside of flange board 111 is inserted and is established in spliced pole 3, and with 3 threaded connection of spliced pole, connecting rod 41 runs through connecting component 2 to the partial threaded connection who runs through supports tight structure 42, connecting component 2 has mounting panel 21, the laminating of mounting panel 21 flange board 111 sets up, support tight structure 42 with mounting panel 21 offsets, will mounting panel 21 is fixed the side of flange board 111, namely fix whole connecting component 2 on combination post 1, connecting component 2 is connected with crossbeam 5 again, realizes the combination of beam column.

The conventional beam-column connecting structure is connected to the outer side of the flange plate 111 of the steel frame 11 of the combination column 1 by welding, but a large amount of heat is generated to melt the welding material during welding so that the joint between the two can be completed, the solidification strength of the concrete 12 is gradually increased along with the increase of time, that is, the strength of the concrete 12 is increased in a large range in the initial stage of solidification, but the strength of the whole concrete is weak, when the connecting member 2 is welded, the temperature of the concrete 12 at the welding position is sharply increased in a short time, the evaporation of moisture on the surface of the concrete 12 is accelerated due to the increase of temperature, the rapid loss of moisture can cause plastic shrinkage of the concrete 12, and finally, the concrete 12 near the welding position is dry and cracked, and the safety performance of the column can be seriously affected due to the crack on the surface of the concrete 12, in order to solve the problem of cracking of the concrete 12, in the embodiment, the combination column 1 and the connecting member 2 are connected by a fastener, and the problem of cracking of the concrete 12 caused by high welding temperature can be effectively solved by adopting the assembly type connection mode that the connecting column 3 and the connecting member 4 are fixed by threaded connection, the connection between two common thin plate-shaped connected members is carried out by bolts, no thread is required to be processed between the bolt-connected members, and a gap is left between the bolt and the hole, so that the processing precision requirement on the hole is low, the structure is simple, the connecting member 2 connected by the bolts is often taken as a preferred item, in the prior art, the bolts are not used for connecting, but the bolts are used for connecting, no matter whether the bolts are inserted from the outside between the two flange plates 111 or the bolts are inserted from the outside to the inside, a space for installing the bolts must be reserved between the two flange plates 111 at the part where the nut combination column 1 is screwed on the connecting member 2, that is, the concrete 12 between the flange plates 111 of the combined column 1 cannot be prefabricated in advance in a factory, after the connecting member 2 is installed on the site, the concrete 12 is poured on the site to fill the gap of the part, the process on the construction site is increased, the construction progress is delayed, the concrete 12 is prepared on the site, the environmental pollution is easily caused, and the residual concrete 12 is not easy to clean after being solidified, in the embodiment, the connecting columns 3 are arranged on two opposite sides of the two flange plates 111, the connecting columns 3 are provided with internal threads, when the connecting member 2 is installed on the construction site, the installing plates 21 of the connecting member 2 are only required to be attached to and placed at the corresponding installing positions of the flange plates 111, then the connecting rods 41 of the connecting members 4 are inserted into the connecting columns 3 and screwed, then the abutting structures 42 are screwed on the parts of the connecting rods 41 extending out of the installing plates 21, and the abutting structures 42 are screwed to abut against the installing plates 21, the mounting plate 21 is abutted to the flange plate 111 to be fixed, the connecting mode is adopted only by being carried out outside the combination column 1, the mounting space is not required to be reserved, the connecting column 3 can be mounted in a factory, then the concrete 12 is poured, the whole combination column 1 is prefabricated completely, the concrete 12 is not required to be poured on site in a construction site, only the connecting component 2 is required to be mounted, the construction process on the site is reduced, the construction progress is accelerated, and the pollution to the construction site is avoided.

The medial surface of spliced pole 3 through welded mode is fixed in flange board 111, welded mode stable in structure, spliced pole 3 is difficult for droing, and the junction is difficult to produce the clearance after being connected through welded mode spliced pole 3 and first through-hole 1111, spliced pole 3 is buried underground in concrete 12 when filling concrete 12, if leave the clearance between the two, concrete 12 just gets into spliced pole 3 inside easily, solidify on the helicitic texture, will influence the joint strength of connecting element 2 and combination post 1, just also can influence the joint strength between 5 posts of crossbeam, when earthquake or the big motion of emergence swing, the security performance of connection can't guarantee.

Also in order to ensure that the interior of the connecting column 3 does not enter the concrete 12 when the concrete 12 is being filled, which would affect the connection between the connecting column 3 and the connecting piece 4, the end of the connecting column 3 remote from the flange plate 111 is closed.

The threaded connection generally cannot be loosened by itself, but the friction between the thread pairs may be reduced or eliminated under the condition of impact or vibration, so that after the combination column 1 and the beam are connected and repeatedly subjected to multiple impacts, the threaded connection between the connecting column 3 and the connecting piece 4 becomes loose, for example, in an area with frequent earthquakes, the looseness of the connection between the beam and the column is very likely to cause collapse of a house, and the shock resistance of the beam and the column is poor, therefore, in order to prevent the looseness of the connection, the connecting rod 41 can be coated with a liquid adhesive before the threads when being screwed down, after the nuts are screwed down, the adhesive is hardened and fixed, so that the relative motion between the thread pairs can be effectively prevented, the threaded connection between the connecting column 3 and the connecting rod 41 can be effectively placed to be loosened after being continuously subjected to the impact, in addition, after the abutting structure 42 is screwed down, the tail end of the connecting rod 41 extending out of the abutting structure 42 is riveted, the connecting rod 41 and the abutting structure 42 are riveted, and relative movement between the thread pairs can be damaged, so that looseness of threaded connection between the connecting column 3 and the connecting piece 4 is prevented, and connection strength is prevented from being affected.

Referring to fig. 2, the connecting member 2 is further provided with a connecting plate 22, the connecting plate 22 is vertically arranged at the middle position of the upper end and the lower end of the mounting plate 21, and the cross beam 5 is fixedly connected with the connecting plate 22 in a welding manner, so that the beam-column combination is realized.

Referring to fig. 1, in order to enhance the strength of the composite column 1, a plurality of horizontally arranged reinforcing plates 6 are disposed between the two flange plates 111, and the arrangement of the reinforcing plates 6 can effectively improve the strength of the concrete 12.

The method for installing the beam-column node of the steel-concrete combined structure comprises the steps of firstly prefabricating the combined column in a factory, firstly forming through holes on flange plates of I-shaped steel, then welding connecting columns at the positions corresponding to the through holes, finally filling concrete between the flange plates, embedding the connecting columns in the concrete, waiting for the concrete to solidify, fixedly installing the combined groups at the corresponding positions, then placing connecting members on the side surfaces of the flange plates in a fitting manner, then inserting connecting rods of connecting pieces into the connecting columns from the outer sides of the flange plates and screwing and fixing the connecting rods, screwing a butting structure at one ends of the connecting rods extending out of the connecting members, screwing the butting structure to be butted against the mounting plates so as to butt the mounting plates against the side surfaces of the flange plates for fixing, completing the connection of the connecting members and the combined column, and then fixing a cross beam on the connecting members, just accomplish the installation of whole beam column node, like this, the installation of connecting elements and combination column only need in the outside unilateral operation of combination column can, the combination column just can be prefabricated in advance in the mill, need not to pour again to the scene to unilateral operation is more convenient relatively for the condition operation that the bolt needs two side operations, and the installation is also more saved relatively, can accelerate the construction progress.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.