CN207512968U - A kind of splicing node of steel plate combined shear wall - Google Patents

Abstract

The utility model relates to a splicing node of a steel plate combined shear wall. The splicing node is arranged at the floor elevation, the top of the lower steel plate combined shear wall is provided with a top plate, and the two sides of the upper steel plate combined shear wall correspond to the position of the internal rib plate Both sides of the steel plate combined shear wall and the lower steel plate combined shear wall are provided with stiffeners corresponding to the positions of the internal ribs; the upper steel plate combined shear wall, the lower steel plate combined shear wall and stiffeners are all welded to the top plate; a through hole is opened in the middle of the top plate, The position of the hole corresponds to the cavity of the steel plate composite shear wall; the top plate extends out of the lower steel plate composite shear wall as a supporting plate for the floor. The beneficial effect is that the splicing joint of the utility model has the characteristics of simple structure, reasonable force transmission, convenient construction and the like. The splicing point is set in the floor. Since the corrosion resistance of the joint is greatly improved, the appearance is greatly improved. The stiffener at the splicing point can transmit the load of the usual rib plate in the steel plate composite shear wall, which can largely Improve bearing capacity.

Description

A joint joint of steel plate composite shear wall

technical field

The utility model relates to the field of building structures, in particular to a splicing node of a steel plate composite shear wall.

Background technique

At present, steel structures are used more and more in the field of building structure technology, and various new steel structures are emerging, which have been applied in the engineering field, and the number is also rising, with broad prospects. Its main advantages are: compared with concrete building structures, it has better applicability and feasibility. Such as reducing the volume of components, increasing the use of space; reducing the weight of the structure, reducing or completely eliminating the formwork and support required for construction; reducing embedded parts, improving seismic performance; facilitating construction and shortening the construction period.

The steel plate composite shear wall refers to the shear wall structure made by bending and shaping the steel plate. Its interior includes a cavity formed by bending the steel plate and ribs separating the cavity. The cavity can be selectively filled with other materials as required. As a building material, it has the advantages of high bearing capacity, light weight, fast construction speed and good shear resistance. It is especially suitable for high-rise and super high-rise buildings and seismic reinforcement projects in high-intensity areas. The superior performance in seismic performance makes it widely used in the field of super high-rise buildings. However, the research on steel plate composite shear walls is not mature at home and abroad. There are no relevant calculation provisions in the code for the connection method of steel plate and concrete, and the connection structure of steel plate and concrete directly affects the interaction between the two and the stability of the structure. And safety, but also affect the amount of structural steel and economical. Compared with traditional steel structures, it can save more steel, improve the stability and torsional performance of components, increase rigidity, enhance rust resistance and fire resistance performance, and achieve economical beauty. Compared with traditional concrete shear walls, it has technical advantages such as light weight, fast construction and easy maintenance.

However, steel plate composite shear wall is a new structural form, and the related joints are constantly being updated and improved in engineering applications, and some of them have exposed the shortcomings of the existing joints.

At present, in the steel plate composite shear wall, the most commonly used forms are the steel tube concrete beam composite shear wall and other forms of multi-cavity steel plate composite shear wall. However, in the on-site vertical splicing joints of these forms of steel plate composite shear walls, due to the usual stiffeners inside the steel plate composite shear walls, they cannot be welded inside, which leads to the discontinuity of the stiffeners at the joints and the problem of weak areas. , Therefore, it is necessary to adopt joint strengthening measures to solve the problem, and the main method currently used is to insert steel bars inside the steel plate composite shear walls at the joints for reinforcement. As shown in Figure 1, by setting the top plate 4 between the lower steel plate combined shear wall 1 and the upper steel plate combined shear wall 2, and by setting the insertion ribs 10 through the upper and lower steel plate combined shear walls to carry out joints. reinforcement. This measure has the following problems: 1. The amount of steel bars is large, which is uneconomical; 2. Since the top plate at the joint is a square hole in the middle, the size itself is small, and the inserted steel bars further occupy the open space, making the combination of steel plates shear It is more difficult for the force wall to pour the internal concrete, which affects the compactness of the concrete pouring; 3. The steel bar insertion type needs to fix the steel bar, and this part of the fixing work takes a lot of man-hours; 4. When the steel plate wall is hoisted, insert the steel bar It is easy to be touched by the steel plate, which will cause the steel bar to bend, hinder the hoisting of the steel plate wall, increase the difficulty of installation, increase the installation time, and prolong the construction period; Hidden danger. In addition, the splicing point on site is generally located 1.2m above the floor. Since the roof protrudes from the shear wall, leaks are prone to occur when painting paint, causing corrosion of the steel plate wall; and, due to the protrusion of the roof, the When carrying out fire protection construction, special treatment is required, such as cutting off the edge of the protruding roof, which further increases the difficulty of construction and prolongs the construction period.

In addition, in the currently used steel plate combined shear wall structure, due to various errors in manufacturing and construction, it is difficult to align the upper and lower steel plate combined shear walls during hoisting. When the error is large, it is even necessary to use a jack to correct the upper steel plate combined shear wall. If no adjustment is made, once the inclination is adjusted, it will cause a serious quality accident. Therefore, the jack needs to be adjusted several times until the upper steel plate combined shear wall The wall is precisely aligned with the lower steel plate composite shear wall. If in the construction process of the whole project, every lifting process needs to be adjusted by the jack, this will seriously affect the number of liftings of the crane, and then affect the construction period of the whole project. As we all know, for builders of buildings, the construction period occupies a very large proportion for their operating costs. Therefore, how to minimize the construction period is a factor that must be considered by the builder. As mentioned above, the splicing joints in the prior art have greatly affected the shortening of the construction period, and brought a large operating cost to the builder.

The utility model proposes a new on-site vertical splicing node for the splicing joint of the steel plate composite shear wall. Compared with the existing splicing joint, it has the characteristics of simple structure, reasonable force transmission and convenient construction. The splicing point can also be set in the floor slab. Because the joint is wrapped by concrete, the corrosion resistance is greatly improved, and the appearance is greatly improved. In addition, the stiffener at the splicing point can transmit the long ribs in the steel plate composite shear wall The load can increase the bearing capacity by more than 15%.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a splicing node of a steel plate composite shear wall.

The utility model provides a splicing node of a steel plate combined shear wall, and its technical scheme is:

A splicing node of a steel plate combined shear wall, comprising an upper steel plate combined shear wall and a lower steel plate combined shear wall, characterized in that: the splicing node is set at the floor level, and the top of the lower steel plate combined shear wall is provided with a top plate , both sides of the upper steel plate combined shear wall and both sides of the lower steel plate combined shear wall are provided with stiffeners; the upper steel plate combined shear wall, the lower steel plate combined shear wall and stiffeners are all connected Fixed connection; a through hole is opened in the middle of the top plate, and the through hole communicates with the cavity of the upper steel plate combined shear wall and the cavity of the lower steel plate combined shear wall; the top plate extends out of the lower steel plate The combined shear wall or the upper steel plate combined shear wall is used as a supporting plate for the floor; the upper steel plate combined shear wall is provided with reinforcement holes, and the upper steel plate combined shear wall is provided with holes passing through the steel bars connecting steel bars.

The splicing node of a steel plate combined shear wall provided by the utility model also includes the following subsidiary technical solutions:

Wherein, the floor is a reinforced concrete floor, the bottom of which is flush with the lower surface of the roof, and the steel bars in the reinforced concrete floor are connected by the connecting steel bars arranged on the upper steel plate composite shear wall.

Wherein, the floor is a reinforced truss floor;

The bottom formwork of the steel truss floor is flush with the upper surface of the roof, and the upper and lower chord steel bars are connected through the connecting steel bars arranged on the upper steel plate composite shear wall; or the bottom of the steel truss floor The template is flush with the lower surface of the roof, and its upper chord reinforcement is connected through the connecting reinforcement set on the upper steel plate composite shear wall, and its lower chord reinforcement is directly fixedly connected with the roof.

Wherein the stiffener is arranged at a position corresponding to the inner ribs of the upper steel plate combined shear wall and/or the lower steel plate combined shear wall.

Wherein, the length of the top plate extending out of the lower steel plate combined shear wall is not less than 30mm.

Wherein, the stiffeners on both sides of the lower steel plate composite shear wall are flat plates.

Wherein, the flat plate is a long steel plate, a plurality of steel plates or a zigzag steel plate; when the flat plate is a long steel plate, plug welding holes are arranged on the flat plate; when the flat plate is a zigzag steel plate, the sawtooth The sawtooth tip of the shaped steel plate is located on the outside of the steel plate composite shear wall at the inner rib.

Wherein, the part of the stiffener at the bottom of the upper steel plate composite shear wall is also used as the upper splicing lug, and the lower splicing lug is welded on the top plate, and the upper splicing lug and the lower splicing lug are connected by bolts.

Wherein, the inner side of the lower splicing ear plate is a hypotenuse, and serves as a guide plate when the upper steel plate composite shear wall is hoisted.

Wherein, each of the through holes corresponds to one cavity of the steel plate composite shear wall, or each of the through holes corresponds to a plurality of cavities of the steel plate composite shear wall.

The implementation of the utility model includes the following technical effects:

The splicing nodes of the steel plate composite shear wall provided by the utility model: 1. By setting the splicing points in the floor, not only the appearance is greatly improved, but also the anti-corrosion and fire prevention can be better solved; 2. Splicing The setting of the stiffener at the node can transmit the load of the inner ribs of the steel plate composite shear wall, which is more effective than the indirect force transmission of steel bars, and can greatly improve its bearing capacity; 3. By widening the roof, the interior of the roof is opened The width of the hole can be increased to a certain extent, which is beneficial to the pouring of concrete; 4. The top plate is also used as a floor supporting plate, and the stiffener is also used as a shearing part of the floor, which saves materials and is more economical; 6. The bottom of the floor is flush with the lower surface of the roof, and the roof is hidden in the floor. During construction, there is no need to saw off the roof or do special treatment here, which is conducive to interior decoration; 7. The lower chord steel bar of the steel bar truss is welded to the top surface of the roof, canceling the connecting steel bar of the floor, saving materials and reducing the workload of wearing steel bars on site; 8. The lower spliced lug plate is used as a hoisting guide plate, which can effectively improve the installation accuracy and save installation time , The installation speed of processing engineering.

Description of drawings

Fig. 1 is a cross-sectional view of a splicing point of a steel plate composite shear wall in the prior art.

Fig. 2 is a cross-sectional view of a splicing node of a steel plate composite shear wall of the present invention, wherein the splicing node is located at the floor.

Fig. 3 is a cross-sectional view of a joint joint of a steel plate combined shear wall of the present invention, wherein the bottom of the floor is flush with the upper surface of the roof.

Fig. 4 is a cross-sectional view of a joint joint of a steel plate combined shear wall of the present invention, wherein the bottom of the floor is flush with the lower surface of the roof.

Fig. 5 is a cross-sectional view of a joint joint of a steel plate composite shear wall of the present invention, wherein the lower stiffener is a flat plate.

Fig. 6 is a cross-sectional view of a splicing node of a steel plate composite shear wall of the present invention, in which some stiffeners are also used as ear plates.

Figure 7 is a horizontal cross-sectional view of a steel plate composite shear wall.

Fig. 8 is a horizontal cross-sectional view at the splicing point of a splicing node of a steel plate composite shear wall of the present invention.

Detailed ways

The utility model will be described in detail below in conjunction with the embodiments and accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the utility model, and have no limiting effect on it.

Referring to Fig. 2-8, a splicing node of a steel plate composite shear wall provided in this embodiment includes an upper steel plate composite shear wall 2 and a lower steel plate composite shear wall 1, the splicing node is set at the floor level, and the lower The top plate 4 is set on the top of the steel plate combined shear wall 1, and the upper stiffener 5 is set on both sides of the upper steel plate combined shear wall 2 corresponding to the position of the internal rib 3, and on both sides of the lower steel plate combined shear wall , the lower stiffener 6 is arranged corresponding to the position where the inner rib 3 is located; the upper steel plate combined shear wall 2, the lower steel plate combined shear wall 1, the upper stiffener 5 and the lower stiffener 6 are all fixedly connected with the top plate 4, for example, Welding; there is a through hole in the middle of the top plate 4, which connects the cavity of the upper steel plate combined shear wall 2 and the cavity of the lower steel plate combined shear wall 1; the top plate 4 extends out of the lower steel plate combined shear wall 1 or the upper steel plate The combined shear wall 2 is used as a supporting plate for the floor 7; the length of the top plate 4 protruding from the lower steel plate combined shear wall is not less than 30mm; the upper steel plate combined shear wall 2 is provided with reinforcement holes, and the upper steel plate combined shear wall The shear wall is provided with connecting reinforcement bars 8 passing through the reinforcement holes. Among them, the upper stiffener 5 is buried in the floor 7 or only the lower part of the stiffener 5 is buried in the floor 7; each through hole corresponds to a cavity of the steel plate composite shear wall, or each through hole corresponds to the steel plate composite Multiple cavities for shear walls. The splicing joints of the steel plate composite shear wall provided in this embodiment, by setting the splicing point at the floor elevation, do not need to cut the edge of the protruding roof during construction, and do not need special treatment, so that not only the appearance It has been greatly improved, and it can better solve the problem of anti-corrosion and fire prevention, and further simplifies the construction procedure and reduces the difficulty of construction; and in this embodiment, inserting ribs are canceled and reinforcement plates are used instead, and the upper steel plate The upper stiffener 5 is welded at the position corresponding to the inner rib 3 on both sides of the composite shear wall 2, and the lower stiffener 6 is welded at the position corresponding to the inner rib 3 on both sides of the lower steel plate composite shear wall 1, and the upper stiffener Both the plate 5 and the lower stiffener 6 are welded to the top plate 4, so that the load on the internal ribs of the upper steel plate combined shear wall 2 is first transmitted to the upper stiffener 5, and then the load on the upper stiffener 5 is transferred to the lower part through the top plate 4 The stiffener 6 , and finally the lower stiffener 6 transmits the load to the rib 3 inside the lower steel plate composite shear wall 1 . The setting of the stiffener at the joint joint can transmit the load of the ribs in the steel plate composite shear wall, which is more effective than the indirect force transmission of steel bars, and can greatly improve its bearing capacity; by widening the roof 4, the inside of the roof The width of the opening can be increased to a certain extent, which is beneficial to the pouring of concrete; the top plate is also used as a floor supporting plate, and the stiffener is also used as a shear member of the floor, which saves materials and is more economical; A reinforcement hole is provided on the wall, and a connection reinforcement 8 passing through the reinforcement hole is provided on the upper steel plate composite shear wall 2, so that the reinforcement in the floor slab is overlapped through the connection reinforcement 8, thereby improving the The reliability of the connection between the floor slab and the shear wall simplifies the construction process and saves the construction period.

Optionally, as shown in Figure 2, the floor slab 7 is a reinforced concrete floor slab, the bottom of which is flush with the lower surface of the top slab 4, and the steel bars in the reinforced concrete floor slab 7 pass through the composite shear wall 2 arranged on the upper steel plate The connecting steel bars 8 on the top are connected. In this embodiment, holes are opened in the upper steel plate combined shear wall 2 and the lower steel plate combined shear wall 1, so that the connecting steel bar 8 passes through the steel plate combined shear wall to connect the upper and lower steel bars in the floor. By arranging the bottom of the floor 7 to be flush with the lower surface of the top 4, the top 4 is hidden in the floor 7, which is beneficial for interior decoration and does not require additional cutting process.

Optionally, as shown in FIG. 3 , the floor slab 7 is a reinforced truss floor, the bottom template 71 of the reinforced truss floor 7 is flush with the upper surface of the roof 4, and its upper chord reinforcement 72 and lower chord reinforcement 73 are all passed through the upper steel plate Combine the connecting steel bars 8 on the shear wall 2 for connection. Or as shown in Figure 4, the bottom template 71 of the reinforced truss floor 7 is flush with the lower surface of the roof 4, and its upper chord reinforcement 72 is connected by the connecting reinforcement 8 arranged on the upper steel plate composite shear wall 2, Its lower chord steel bar 73 is directly welded with top plate 4. In this embodiment, the bottom formwork 71 of the steel bar truss floor 7 is flush with the lower surface of the roof 4, and its upper chord reinforcement 72 is lapped through the connecting reinforcement 8 passing through the steel plate composite shear wall, and its lower chord reinforcement 73 is directly connected to the roof 4. Welding saves materials, reduces the workload of wearing steel bars on site, and shortens the construction period.

Optionally, as shown in Figure 5-7, the lower stiffeners on both sides of the lower steel plate composite shear wall 1 corresponding to the positions of the internal ribs are flat plates 9, and the flat plates 9 are full-length steel plates, multiple steel plates or sawtooth shaped steel plate; when the flat plate is a long steel plate, plug welding holes are provided on the flat plate; when the flat plate is a zigzag steel plate, the saw tooth tip of the zigzag steel plate is located at the combined shear force of the steel plate at the internal rib outside the wall. In this embodiment, the consumption of steel is saved by setting the flat plate as multiple steel plates or zigzag steel plates.

It is also possible to use part of the upper stiffener 5 of the upper steel plate combined shear wall 2 as the upper splicing lug 91, weld the lower splicing lug 92 on the top plate 4, and make the upper splicing lug 91 and the lower splicing lug 92 pass through the bolts. connect. More preferably, the inner side of the lower splicing ear plate 92 is a hypotenuse, which is used as a guide plate when the upper steel plate composite shear wall 2 is hoisted; the flat plate is a long steel plate or multiple steel plates. In this embodiment, the lower splicing lug plate 92 is used as a hoisting guide plate, which can effectively improve the alignment accuracy of the upper steel plate combined shear wall and the lower steel plate combined shear wall, thus eliminating the need to use jacks in the prior art to adjust The upper steel plate combined shear wall is precisely aligned with the lower steel plate combined shear wall, which not only improves the installation accuracy, but also greatly saves the installation time and speeds up the installation speed of the project.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (10)

1. A splicing node of a steel plate composite shear wall, comprising an upper steel plate composite shear wall and a lower steel plate composite shear wall, characterized in that: the splicing node is arranged at the floor elevation, and the top of the lower steel plate composite shear wall is arranged There is a roof, and both sides of the upper steel plate combined shear wall and both sides of the lower steel plate combined shear wall are provided with stiffeners; the upper steel plate combined shear wall, the lower steel plate combined shear wall and stiffeners The top plate is fixedly connected; a through hole is provided in the middle of the top plate, and the through hole communicates with the cavity of the upper steel plate composite shear wall and the cavity of the lower steel plate composite shear wall; the top plate extends out of the The lower steel plate combined shear wall or the upper steel plate combined shear wall is used as a supporting plate for the floor; the upper steel plate combined shear wall is provided with reinforcement holes, and the upper steel plate combined shear wall is provided with Connecting bars for bar holes. 2. The splicing node of a steel plate composite shear wall according to claim 1, wherein the floor is a reinforced concrete floor, the bottom of which is flush with the lower surface of the roof, and the reinforced concrete floor The steel bars are connected through the connecting steel bars arranged on the upper steel plate composite shear wall. 3. The splicing node of a steel plate composite shear wall according to claim 1, characterized in that: the floor is a reinforced truss floor; The bottom formwork of the steel truss floor is flush with the upper surface of the roof, and the upper and lower chord steel bars are connected through the connecting steel bars arranged on the upper steel plate composite shear wall; or the bottom of the steel truss floor The template is flush with the lower surface of the roof, and its upper chord reinforcement is connected through the connecting reinforcement set on the upper steel plate composite shear wall, and its lower chord reinforcement is directly fixedly connected with the roof. 4. The splicing node of a steel plate combined shear wall according to any one of claims 1-3, characterized in that: the stiffener is arranged on the upper steel plate combined shear wall and/or the lower part The position corresponding to the internal ribs of the steel plate composite shear wall. 5. A splicing joint of a steel plate combined shear wall according to any one of claims 1-3, characterized in that the length of the top plate extending out of the lower steel plate combined shear wall is not less than 30mm. 6. The splicing joint of a steel plate combined shear wall according to any one of claims 1-3, wherein the stiffeners on both sides of the lower steel plate combined shear wall are flat plates. 7. The splicing node of a steel plate composite shear wall according to claim 6, characterized in that: the flat plate is a long steel plate, a plurality of steel plates or a zigzag steel plate; when the flat plate is a long steel plate, the The flat plate is provided with a plug welding hole; when the flat plate is a zigzag steel plate, the sawtooth tip of the zigzag steel plate is located outside the steel plate combined shear wall at the internal rib. 8. The splicing node of a steel plate combined shear wall according to claim 7, characterized in that: the part of the stiffener at the bottom of the upper steel plate combined shear wall doubles as the upper splicing ear plate, and the top plate The upper part is welded with the lower splicing lug plate, and the upper splicing lug plate and the lower splicing lug plate are connected by bolts. 9. The splicing node of a steel plate combined shear wall according to claim 8, characterized in that: the inner side of the lower spliced ear plate is a hypotenuse, and serves as a guide when the upper steel plate combined shear wall is hoisted plate. 10. The splicing node of a steel plate composite shear wall according to any one of claims 1-3, characterized in that: the through hole corresponds to a cavity of the steel plate composite shear wall, or, the through hole Corresponding to multiple cavities of the steel plate composite shear wall.