CN211690883U - Assembled shear force wall dry-type connected node of function separation - Google Patents

Assembled shear force wall dry-type connected node of function separation Download PDF

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Publication number
CN211690883U
CN211690883U CN201922135521.9U CN201922135521U CN211690883U CN 211690883 U CN211690883 U CN 211690883U CN 201922135521 U CN201922135521 U CN 201922135521U CN 211690883 U CN211690883 U CN 211690883U
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steel plate
precast concrete
concrete wall
steel
counter
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CN201922135521.9U
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Chinese (zh)
Inventor
王墩
程海江
陈理明
王艳龙
田晓坤
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Shanghai Pukai Prefabricated Building Technology Co ltd
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Shanghai Pukai Prefabricated Building Technology Co ltd
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Abstract

The utility model discloses an assembled shear force wall dry-type connected node of function separation, including upper portion precast concrete wall, lower part precast concrete wall, second steel sheet, third steel sheet, first pair of screw rod and the second of drawing to drawing the screw rod. The first steel plates are installed on two sides of the lower end of the upper precast concrete wall through first counter-pulling screw rods and extend downwards to form the lower end face of the upper precast concrete wall; the second steel plates are arranged on two sides of the upper end of the lower precast concrete wall through second counter-pulling screws and extend upwards to the upper end face of the lower precast concrete wall; the first steel plate and the third steel plate are connected at the vertical long hole at the upper part of the third steel plate through a high-strength bolt and a nut, and the second steel plate and the third steel plate are connected at the vertical long hole at the lower part of the third steel plate through a high-strength bolt and a nut. The utility model can realize the deformation function of horizontal sliding dislocation and vertical opening of the upper and lower precast concrete walls, and effectively realize the function separation and the load transmission; the connecting node is easy to replace and repair after being damaged or destroyed.

Description

Assembled shear force wall dry-type connected node of function separation
Technical Field
The invention relates to the technical field of civil engineering assembly type buildings, in particular to a function-separated assembly type shear wall dry type connecting node.
Background
With the great popularization and application of building industrialization and assembly type buildings, a shear wall structure is widely applied as a structural system which has high lateral stiffness and is mainly used for resisting horizontal action and vertical action. In the precast concrete shear wall structure, the connection area is the most important and sensitive part in the precast shear wall panel structure, and the connection method between precast concrete wall panels not only influences the safety of the structure and determines the quality of the anti-seismic performance level of the structure, but also influences the durability and functionality of the structure.
The conventional connection between precast concrete wall panel members is by means of steel bar welding, mechanical connection or socket grout anchor. However, the connection procedure is complex, the cost is high, the connection performance is not easy to guarantee, and the great popularization and application of the precast concrete shear wall structure are seriously influenced.
There are various connection nodes or connection methods for precast concrete shear wall panels, such as an assembled concrete shear wall connection node structure (application publication No. 2019.06.04) of CN208981567U, which can basically ensure the connection between precast concrete wall panels, but has the following disadvantages: although the precast concrete wall panels are connected through steel members and steel frames, the precast concrete wall panels are not sufficient in deformation resistance under horizontal action and vertical action, are easily deformed under the action of an earthquake, and are not easily repaired once damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a dry-type connecting node of an assembled shear wall with separated functions, which can realize horizontal sliding and dislocation and vertical stretching deformation functions of an upper precast concrete wall and a lower precast concrete wall and effectively realize function separation and load transmission; the construction is simple, no field wet operation is performed, and the limitation of high technical requirements on field construction workers is eliminated; the damage and the destruction of the connecting node are convenient to discover, and the damage replacement or the repair after the earthquake is facilitated.
In order to achieve the above object, the utility model adopts the following technical scheme: the prefabricated concrete wall comprises an upper prefabricated concrete wall, a lower prefabricated concrete wall and a node connecting part, wherein the node connecting part comprises a first steel plate, a second steel plate, a third steel plate, a first pair of pull screws and a second pair of pull screws; the first steel plates are installed on two sides of the lower end of the upper precast concrete wall through the first counter screw, and the lower end parts of the first steel plates extend downwards to form the lower end face of the upper precast concrete wall; the second steel plates are arranged on two sides of the upper end of the lower precast concrete wall through the second counter-pulling screw rods, and the upper end parts of the second steel plates extend upwards to form the upper end face of the lower precast concrete wall; the lower end of the first steel plate is connected with the upper portion of the third steel plate, the upper end of the second steel plate is connected with the lower portion of the third steel plate, a vertical long hole is formed in the upper portion of the third steel plate along the length direction of the steel plate, and a horizontal long hole is formed in the lower portion of the third steel plate along the thickness direction of the steel plate.
Preferably, the first steel plate and the second steel plate are provided with holes.
Preferably, the upper precast concrete wall is provided with a plurality of penetrating opposite-pulling screw rods along the thickness direction of the wall body, namely the horizontal direction, for the insertion of the first opposite-pulling screw rods, one end of each first opposite-pulling screw rod is rigidly connected with a high-strength nut, and the other end of each first opposite-pulling screw rod is provided with threads which can be connected with the high-strength nut; the lower precast concrete wall is provided with a plurality of penetrating opposite-pulling screw rod preformed holes along the thickness direction of the wall body, namely the horizontal direction, so that the second opposite-pulling screw rod can be inserted into the holes, one end of the second opposite-pulling screw rod is rigidly connected with a high-strength nut, and the other end of the second opposite-pulling screw rod is provided with threads and can be connected with the high-strength nut.
Preferably, the first steel plate is connected with the upper part of the third steel plate at the vertical long hole through a first high-strength bolt and a first high-strength nut, and the second steel plate is connected with the third steel plate at the horizontal long hole through a second high-strength bolt and a second high-strength nut.
Preferably, the first steel plate and the second steel plate are vertically on the same vertical line with a certain gap left therebetween.
The technical scheme of the utility model beneficial effect for prior art is:
through the design of the vertical long hole and the horizontal long hole on the third steel plate and the connection design of the vertical long hole and the horizontal long hole with the first steel plate and the second steel plate respectively, the prefabricated concrete wall structure realizes the deformation or motion modes of horizontal sliding dislocation, vertical opening and the like between the upper prefabricated concrete wall and the lower prefabricated concrete wall under the lateral load or wind load, and effectively realizes the function separation and the load transmission; the connection mode of the screw, the bolt and the nut is adopted between the steel plates and the wall body and between the steel plates, so that the on-site wet operation is avoided, the operation is simple, and the limitation on the high technical requirements of on-site workers is avoided; once damaged or destroyed, the method is convenient to find and is beneficial to the replacement or repair of the damage after the earthquake.
Drawings
Fig. 1 is a schematic structural view of a functionally separated dry-type connection node of an assembled shear wall according to the present invention;
FIG. 2 is an enlarged view of a preformed hole of a counter-pulling screw rod in the upper precast concrete wall in FIG. 1;
FIG. 3 is an enlarged view of the junction of the upper precast concrete wall and the lower precast concrete wall of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the inner portion of FIG. 1;
fig. 5 is a schematic structural view of a joint of the first high-strength bolt and the second high-strength bolt of fig. 3.
The correspondence between the components and the reference numbers in the above figures is as follows:
in the drawings: 1. the prefabricated concrete wall of upper portion, 2, lower part prefabricated concrete wall, 3, first steel sheet, 4, second steel sheet, 5, third steel sheet, 6, vertical slot hole, 7, horizontal slot hole, 8, first high-strength bolt, 9, the second high-strength bolt, 10, first high-strength nut, 11, the second high-strength nut, 12, first counter-pull screw rod, 13, the second counter-pull screw rod, 14, counter-pull screw rod preformed hole.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings and the specific embodiments. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a schematic structural view of a functionally separated fabricated shear wall dry-type connection node is shown, which includes an upper precast concrete wall 1, a lower precast concrete wall 2 and a node connection member.
The node connecting member includes first steel plates 3 installed at both sides of the upper precast concrete wall 1, second steel plates 4 installed at both sides of the lower precast concrete wall 2, and third steel plates 5 connecting the first and second steel plates 3 and 4.
As shown in fig. 1 and 2, a plurality of through-going opposite-pulling screw rod preformed holes 14 are formed in the upper precast concrete wall 1 along the thickness direction of the wall, i.e. the horizontal direction, for the first opposite-pulling screw rods 12 to pass through, the first opposite-pulling screw rods 12 pass through the holes of the first steel plate 3 on one side of the upper precast concrete wall 1, are inserted into the opposite-pulling screw rod preformed holes 14, pass through the holes of the first steel plate 3 on the other side of the upper precast concrete wall 1, and the threaded parts of the extended parts can be screwed by high-strength hexagon nuts to fix the first steel plates 3 on the two sides of the upper precast concrete wall 1.
Inside along wall body thickness direction that is the horizontal direction of lower part precast concrete wall 2 is equipped with a plurality of pairs of screw rod preformed holes 14 that run through, supplies the second to draw screw rod 13 to pass through, and the second is to drawing screw rod 13 and passing the hole of 2 one side second steel sheet 4 of lower part precast concrete wall, inserts pair and draws screw rod preformed hole 14, wears out the hole of 2 opposite side second steel sheet 4 of lower part precast concrete wall, and it has the screw thread to wear out the part, can screw up with high strength hexagon nut, fixes second steel sheet 4 in the both sides of lower part precast concrete wall 2.
As shown in fig. 1, the lower end of the first steel plate 3 extends downward to the bottom of the upper precast concrete wall 1, the upper end of the second steel plate 4 extends upward to the upper end of the lower precast concrete wall 2 along the direction of the first steel plate 3, a gap is left between the lower end of the first steel plate 3 and the upper end of the second steel plate 4, and the third steel plate 5 is closely attached to the first steel plate 3 and the second steel plate 4 and is erected above the gap to connect the first steel plate 3 and the second steel plate 4.
As shown in fig. 3, a vertical long hole 6 formed along the length direction of the steel plate is formed in the upper part of the third steel plate 5, and the lower end part of the first steel plate 3 is connected with the third steel plate 5 at the vertical long hole 6 through a first high-strength bolt 8 and a first high-strength nut 10; the lower part of the third steel plate 5 is provided with a horizontal long hole 7 which is arranged along the thickness direction of the steel plate, and the upper end part of the second steel plate 4 is connected with the third steel plate 5 at the horizontal long hole 7 through a second high-strength bolt 9 and a second high-strength nut 11. Thus, the upper precast concrete wall 1 and the lower precast concrete wall 2 are connected together by joint connection members formed by connecting the first steel plate 3, the second steel plate 4 and the third steel plate 5, respectively.
As shown in fig. 4 and 5, the vertical long hole 6 has a certain space in the vertical direction, and the connection part of the first steel plate 3 and the third steel plate 5 at the vertical long hole 6 allows the upper precast concrete wall 1 and the lower precast concrete wall 2 to have limited deformation or movement in the vertical direction; horizontal slot hole 7 has certain space in the horizontal direction, and the connection of second steel sheet 3 and third steel sheet 5 in horizontal slot hole 7 department makes upper portion precast concrete wall 1 and lower part precast concrete wall 2 take place limited deformation or motion on the horizontal direction, can know from this, the utility model discloses can realize opening between upper portion precast concrete wall 1, the lower part precast concrete wall 2 and the slippage dislocation between upper portion precast concrete wall 1, the lower part precast concrete wall 2 respectively to lateral load and wind load when dealing with the earthquake.
The utility model discloses but wide application in the member connection of high-rise building precast concrete shear wall structure. When an earthquake occurs, certain deformation energy consumption capacity can be realized in the horizontal direction and the vertical direction without losing the vertical and horizontal bearing capacity of the connecting part; the connecting mode of the high-strength bolt and the high-strength nut is adopted, and the connecting parts between the damaged precast concrete wall panel components can be conveniently replaced after the earthquake. The utility model discloses simple structure, construction convenience.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims (6)

1. The dry-type connecting joint of the assembled shear wall with separated functions comprises an upper prefabricated concrete wall (1), a lower prefabricated concrete wall (2) and a joint connecting component, and is characterized in that the joint connecting component comprises a first steel plate (3), a second steel plate (4), a third steel plate (5), a first counter-pull screw (12) and a second counter-pull screw (13); the first steel plates (3) are installed on two sides of the lower end of the upper precast concrete wall (1) through the first pair of pull screws (12), and the lower end parts of the first steel plates (3) extend downwards out of the lower end face of the upper precast concrete wall (1); the second steel plates (4) are installed on two sides of the upper end of the lower precast concrete wall (2) through the second counter-pulling screw rods (13), and the upper end parts of the second steel plates (4) extend upwards out of the upper end face of the lower precast concrete wall (2); the lower tip of first steel sheet (3) with the upper portion of third steel sheet (5) is connected, the upper end of second steel sheet (4) with the sub-unit connection of third steel sheet (5), vertical slot hole (6) have been seted up along steel sheet length direction in the upper portion of third steel sheet (5), horizontal slot hole (7) have been seted up along steel sheet thickness direction in the lower part of third steel sheet.
2. A functionally segregated fabricated shear wall dry-type connection node according to claim 1, wherein the first steel plate (3) and the second steel plate (4) are provided with holes.
3. A functionally segregated fabricated shear wall dry-type connection node according to claim 1, wherein the upper precast concrete wall (1) is provided with a plurality of through tension screw rod preformed holes (14) along the thickness direction of the wall, i.e. the horizontal direction, for the insertion of the first tension screw rods (12); the lower precast concrete wall (2) is provided with a plurality of preformed holes (14) for the second counter-pulling screw rods (13) to insert, wherein the preformed holes penetrate through the counter-pulling screw rods in the thickness direction, namely the horizontal direction of the wall body.
4. A functionally segregated fabricated shear wall dry type connection node according to claim 3, wherein the first counter screw (12) is rigidly connected with a high-strength nut at one end and is provided with threads at the other end to be connected with the high-strength nut; one end of the second counter-pulling screw rod (13) is rigidly connected with a high-strength nut, and the other end of the second counter-pulling screw rod is provided with threads which can be connected with the high-strength nut.
5. The functionally-separated fabricated shear wall dry connecting node according to claim 1, wherein the first steel plate (3) is connected with the upper part of the third steel plate (5) at the vertical long hole (6) through a first high-strength bolt (8) and a first high-strength nut (10), and the second steel plate (4) is connected with the third steel plate (5) at the horizontal long hole (7) through a second high-strength bolt (9) and a second high-strength nut (11).
6. A functionally segregated fabricated shear wall dry-type connection node according to claim 1, wherein the first steel plate (3) and the second steel plate (4) are vertically on the same vertical line with a gap therebetween.
CN201922135521.9U 2019-12-03 2019-12-03 Assembled shear force wall dry-type connected node of function separation Active CN211690883U (en)

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Application Number Priority Date Filing Date Title
CN201922135521.9U CN211690883U (en) 2019-12-03 2019-12-03 Assembled shear force wall dry-type connected node of function separation

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Application Number Priority Date Filing Date Title
CN201922135521.9U CN211690883U (en) 2019-12-03 2019-12-03 Assembled shear force wall dry-type connected node of function separation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114045876A (en) * 2021-10-13 2022-02-15 南通装配式建筑与智能结构研究院 Distribution network civil engineering assembly prefabricated tee bend and four-way cable shaft dry-type mosaic structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114045876A (en) * 2021-10-13 2022-02-15 南通装配式建筑与智能结构研究院 Distribution network civil engineering assembly prefabricated tee bend and four-way cable shaft dry-type mosaic structure

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