CN212613174U

CN212613174U - Assembled hybrid connection shear wall and connection structure thereof

Info

Publication number: CN212613174U
Application number: CN202021231320.5U
Authority: CN
Inventors: 王东方; 刘小荣; 杨涛; 刘明辉; 刘冶
Original assignee: Tibet Taoyang New Building Materials Technology Co ltd
Current assignee: Tibet Taoyang New Building Materials Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-26
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an assembled hybrid connection shear wall and a connection structure thereof, comprising horizontal ribs, vertical ribs and a prefabricated wall body, wherein the vertical ribs comprise first vertical ribs and second vertical ribs, the diameter of the first vertical ribs is larger than that of the second vertical ribs, and the upper end and/or the lower end of the first vertical ribs are welded with strong connecting pieces; the strong connecting piece at the lower end of the first vertical rib is arranged in a cast-in-place hole of the prefabricated wall body, and the upper part of the cast-in-place hole is communicated with a grouting hole. The strong connecting piece can be used as a support for mounting the prefabricated shear wall, so that a temporary support is omitted, and the construction efficiency is improved; and the connecting modes such as grouting sleeves and the like are not adopted, so that the manufacturing cost is reduced, the construction is convenient, and the construction speed is accelerated. The connection of first vertical muscle is connected through strong connecting piece, improves the ductility under the wall body pulling force.

Description

Assembled hybrid connection shear wall and connection structure thereof

Technical Field

The utility model relates to a building structure field, more specifically the utility model relates to an assembled hybrid connection shear force wall and connection structure thereof that says so.

Background

The connecting technology between the walls of the prefabricated shear wall is the key point of a prefabricated and assembled integral reinforced concrete shear wall system, and how to construct a novel connecting mode which has good stress performance, reasonable construction measures and simple and convenient construction and installation is always the technical difficulty of structural design of the prefabricated and assembled integral reinforced concrete shear wall.

At present, in the vertical installation and construction process of a prefabricated shear wall body, the structural design principle is mainly based on a cast-in-place shear wall, and the construction measures and the like all take equal cast-in-place as starting points, so that the advantages of an assembled shear wall structure cannot be fully exerted. The vertical reinforcing steel bars of the upper and lower layers of prefabricated shear walls are connected with the vertical reinforcing steel bars in the edge members one by one, and the vertical distributed reinforcing steel bars in the non-edge members are connected by quincunx parts or connected one by one or connected in a single row; the connection of the vertical steel bars mainly adopts the modes of sleeve grouting, sleeve extrusion, anchor slurry lap joint, bolt connection and the like. It has the following problems:

by adopting the structure, the vertical steel bar connection has higher requirements on site operation and construction precision, and the mode of binding the site steel bars and pouring concrete is adopted, so that the site construction amount is large, the construction speed is slow, and the quality is not easy to control;

the problem that vertical connecting pieces are additionally arranged between the vertical reinforcing steel bars is solved, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide an assembled hybrid connection shear force wall and connection structure thereof.

The utility model discloses a following technical scheme realizes:

an assembled hybrid connection shear wall comprises horizontal ribs, vertical ribs and a prefabricated wall body,

the vertical ribs comprise a first vertical rib and a second vertical rib, the diameter of the first vertical rib is larger than that of the second vertical rib, and strong connecting pieces are welded at the upper end and/or the lower end of the first vertical rib;

the strong connecting piece at the lower end of the first vertical rib is arranged in a cast-in-place hole of the prefabricated wall body, and the upper part of the cast-in-place hole is communicated with a grouting hole.

The shear wall structure of this scheme of adoption, the strong connecting piece welding between the adjacent shear wall about when buildding is in the same place, realizes the biography power connection of first vertical muscle. The second vertical rib between the upper and lower adjacent shear walls has two connection modes: the second vertical ribs of the upper wall body and the lower wall body are cut off at the edges, and the upper wall body and the lower wall body are connected in a lap joint mode through the short ribs in the middle, and the second vertical ribs of the upper wall body and the lower wall body are not cut off and are connected in a lap joint mode; after the lap joint, a grouting layer is cast in situ at the joint of the upper shear wall and the lower shear wall, and the grouting layer is cast together with the steel bar lap joint holes in the casting process, so that the connection stability and reliability of the wall body are enhanced. The scheme adopts the strong connecting piece to improve the shearing resistance bearing capacity of the prefabricated shear wall at the connecting part, and realizes the design idea of 'strong nodes and weak components'. Meanwhile, the welded strong connecting pieces can serve as supports for mounting the prefabricated shear wall, so that temporary supports are omitted, construction steps are simplified undoubtedly, and construction efficiency is improved. The first vertical rib of the upper shear wall and the lower shear wall is directly welded with the strong connecting piece in a force transferring way, and the second vertical rib is lapped, so that an additional connecting piece is omitted, and the construction cost is saved. The non-edge member does not adopt the connection modes such as a grouting sleeve and the like any more, so that the manufacturing cost can be reduced, the construction is convenient, and the construction speed is accelerated. The connection mode of vertical component no longer conceals, easily quality control, and the connection of first vertical muscle is connected through strong connecting piece, improves the ductility under the wall body pulling force.

The assembled hybrid connection shear wall connection structure comprises an upper shear wall and a lower shear wall, wherein the upper shear wall and the lower shear wall are the assembled hybrid connection shear wall;

a grouting layer is poured at the joint of the upper shear wall and the lower shear wall;

the strong connecting pieces between the upper shear wall and the lower shear wall are connected in a welding mode, and the second vertical ribs between the upper shear wall and the lower shear wall are connected in a lap joint mode.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses a strong connecting piece can act as the support of installation of precast shear wall to cancel interim support, this has simplified construction steps undoubtedly, has improved the efficiency of construction.

2. The utility model discloses a non-edge member no longer adopts connected mode such as grout sleeve, can reduce the cost, conveniently construct, accelerate the construction speed. The connection mode of vertical component no longer conceals, easily quality control, and the connection of first vertical muscle is connected through strong connecting piece, improves the ductility under the wall body pulling force.

3. The utility model discloses a strong connecting piece bears the dynamic height, and rigidity is big, connects reliably, and the stable reliability has improved whole bearing capacity of structure and anti-seismic performance and structure ductility, has improved the anti ability of collapsing of structure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of the lower end of the strong connecting piece of the shear wall of the present invention when a steel plate is adopted.

Fig. 2 is a view a-a of fig. 1.

Fig. 3 is another schematic structural diagram of the lower end of the strong connecting member of the shear wall of the present invention, which is made of steel plates.

Fig. 4 is a view B-B of fig. 3.

Fig. 5 is a schematic structural diagram of the upper end of the strong connecting piece of the shear wall of the present invention when a steel plate is used.

Fig. 6 is a view C-C of fig. 5.

Fig. 7 is another schematic structural diagram of the upper end of the strong connecting member of the shear wall of the present invention when a steel plate is used.

Fig. 8 is a view from D-D of fig. 7.

Fig. 9 is a schematic structural view of the lower end of the shear wall when the strong connecting member of the shear wall of the present invention adopts an i-steel.

Fig. 10 is a view E-E of fig. 9.

Fig. 11 is a schematic structural diagram of the upper end of the shear wall when the strong connecting member adopts i-steel.

Fig. 12 is a view F-F of fig. 11.

Fig. 13 is a schematic view of a connection structure of the shear wall of the present invention using a steel plate.

Fig. 14 is a schematic view of a connection structure of the shear wall of the utility model using i-steel.

Reference numbers in the figures refer to:

1. horizontal ribs; 21. a first vertical rib; 22. a second vertical rib; 3. a strong connection member; 4. prefabricating a wall body; 5. a cast-in-place hole; 6. overlapping short ribs; 7. grouting layer; 8. a lap joint hole; 9. and (7) grouting holes.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

The utility model provides an assembled hybrid connection shear force wall, includes horizontal muscle 1, vertical muscle and prefabricated wall body 4, and vertical muscle includes first vertical muscle 21 and the vertical muscle 22 of second, and the diameter of first vertical muscle 21 is greater than the diameter of the vertical muscle 22 of second, and the welding of the upper end and/or the lower extreme of first vertical muscle 21 has strong connecting piece 3.

The strong connecting piece at the lower end of the first vertical rib is arranged in a cast-in-place hole 5 of the prefabricated wall body 4, and the upper part of the cast-in-place hole 5 is communicated with a grouting hole 9.

According to different use positions of the shear wall, the arrangement positions and the number of the strong connecting pieces and the arrangement conditions of the cast-in-place holes 5 are different. Specifically, if the shear wall is arranged at the top, the top of the first vertical rib 21 does not need to be provided with the strong connecting piece 3, and only the bottom end of the first vertical rib 21 needs to be provided with the strong connecting piece 3, the corresponding cast-in-place hole 5 and the corresponding grouting hole 9. If the shear wall is arranged in the middle, namely, the upper part and the lower part of the first vertical rib 21 are connected with the shear wall, the top and the bottom of the shear wall are provided with strong connecting pieces 3, and the position of the strong connecting piece at the bottom end of the prefabricated wall body is correspondingly provided with a cast-in-place hole 5 and a grouting hole 9. If the shear wall is arranged at the bottom, the strong connecting piece 3 is only required to be arranged at the top, namely the upper end, of the first vertical rib 21. It should be noted that all the directional terms referred to in the present disclosure, such as upper end, lower end, top and bottom, refer to the directional terms as they are used in normal use.

The strong connecting piece can adopt section steel or steel plates.

The top of the grouting hole is 300mm to 400mm away from the top of the cast-in-place hole, and a square hole of 30mmx30mm can be adopted as the grouting hole.

Example 2

Based on the principle of the above embodiments, the present embodiment discloses a specific implementation,

the present embodiment is a steel plate. Specifically, as shown in fig. 1 to 12, the wall comprises a horizontal rib 1, vertical ribs and a prefabricated wall body, wherein the diameter of the first vertical rib 21 is larger than that of the second vertical rib 22, a strong connecting piece 3 is welded at the upper end and/or the lower end of the first vertical rib 21, the upper and lower strong connecting pieces are arranged according to the position of a shear wall, if the shear wall exists vertically, the strong connecting pieces 3 are arranged at the two ends, and otherwise, the strong connecting pieces are arranged at one end according to the situation. In this embodiment, the lower end is taken as an example, a cast-in-place hole 5 is formed at the bottom of the shear wall, and the strong connecting member is arranged in the cast-in-place hole 5. The second vertical ribs are arranged in two rows, the opposite lacing wires are arranged between the two rows of the second vertical ribs, and the first vertical ribs are arranged between the two rows of the second vertical ribs. The two steel plates are arranged on two sides of the cast-in-place hole, and the cast-in-place hole is formed between the two steel plates. In order to facilitate welding and improve connection stability, the hole between the two steel plates forms a cast-in-place hole 5, the cast-in-place hole 5 is communicated along the wall thickness direction, and the height of the cast-in-place hole is 250-450 mm.

By adopting the shear wall structure with the structure, when the shear wall structure is built, the connection of the upper shear wall and the lower shear wall can adopt various modes. The strong connecting pieces between the upper shear wall and the lower shear wall are connected in a welding mode, and the second vertical ribs between the upper shear wall and the lower shear wall are connected in a lap joint mode.

Specifically, the steel plates are of preset structures and are respectively arranged on two sides of the cast-in-place hole 5, the steel plate at the bottom of the upper shear wall extends out of the bottom of the prefabricated wall body by 15-25mm, preferably 20mm and can be used as a temporary support for construction, and the steel plate at the top of the lower shear wall extends out of the top of the prefabricated wall body by 200-400mm and is welded with the steel plate at the bottom of the upper shear wall in a lap joint and rear angle welding mode.

The first vertical rib is a welding vertical rib, and the second vertical rib is a common vertical distribution rib. The connection of ordinary vertical distribution muscle can realize multiple mode, as shown in fig. 1, 2, cuts at prefabricated wall body lower extreme edge, sets up one row of overlap joint short rib 6 between ordinary vertical distribution muscle, corresponds, and lower shear wall upper end adopts as fig. 5, 6 the structure, set up the overlap joint hole 8 that is used for overlap joint short rib 6 at prefabricated wall body top, realize going up the overlap joint of shear wall and the ordinary vertical distribution muscle of lower shear wall. Or as shown in fig. 3 and 4, the common vertical distribution ribs of the upper shear wall extend out of the lower end of the wall body and are inserted into the lower shear wall, and the extending length of the common vertical distribution ribs meets the requirement of the lap joint length. The same, need set up overlap joint hole 8 on the top of shear wall down, the size of overlap joint hole 8 is confirmed according to the diameter of the vertical muscle of second or overlap joint short muscle 6, the degree of depth can satisfy overlap joint reinforcing bar male overlap joint length requirement can, preferred overlap joint hole 8 is quad slit or round hole. The square aperture size is preferably 5 x 5 cm.

After the first vertical ribs 21 and the second vertical ribs 22 of the upper shear wall and the lower shear wall are connected in the above manner, as shown in fig. 13, a grouting layer 7 is poured at the connection part of the upper shear wall and the lower shear wall, and the thickness of the grouting layer is controlled to be 1.8-2.2 cm, preferably 2 cm. In the grouting process, the grouting layer 7 is poured, and the pouring hole and the grouting hole can be simultaneously poured through pouring the grouting hole at the bottom of the upper shear wall.

Example 3

Based on the principle of the above embodiment, the embodiment discloses a specific implementation manner, and is different from embodiment 2 in that the strong connecting member of the embodiment adopts section steel. Similarly, the upper shear wall and the lower shear wall can be connected in various ways, and when the upper shear wall and the lower shear wall are connected, the strong connecting pieces between the upper shear wall and the lower shear wall are welded and connected, and the second vertical ribs between the upper shear wall and the lower shear wall are connected in a lap joint way.

The section steel at the bottom of the upper shear wall is arranged in the cast-in-place hole 5, as shown in figures 9 and 10, the I-shaped steel is arranged in the cast-in-place hole, the periphery of the I-shaped steel is the cast-in-place hole, the distance from the edge of the cast-in-place hole to the flange of the section steel along the length direction of the wall is more than or equal to 100mm, and the height of the cast-in-place hole is 200 mm and 300mm, so that the section steel and concrete are directly and fully bonded. The profile steel connection of the upper shear wall and the lower shear wall can adopt various modes, wherein one mode is that as shown in fig. 14, the profile steel at the top of the lower shear wall extends out of the prefabricated wall body by 0.9-1.1 cm, preferably 1 cm, so as to ensure that the butt welding position of the profile steel is in the range of a grouting layer as much as possible, and the construction operation is convenient; and similarly, the section steel at the bottom of the upper shear wall extends out of the prefabricated wall body by 0.9-1.1 cm, preferably 1 cm, and the section steel and the prefabricated wall body are welded together at the position of a grouting layer. And secondly, the section steels of the upper shear wall and the lower shear wall are butt-welded in the cast-in-situ hole 5.

The connection of ordinary vertical distribution muscle can realize multiple mode, and is same, cuts at prefabricated wall body grout blanket 7 promptly wall body lower extreme, sets up one row of overlap joint short muscle 6 between ordinary vertical distribution muscle, realizes going up the overlap joint of shear force wall and the ordinary vertical distribution muscle of lower shear force wall. Or the common vertical distribution ribs extend out of the lower end of the prefabricated wall body of the upper shear wall and are inserted into the lower shear wall, and the extending length of the common vertical distribution ribs meets the requirement of the lap joint length. The same, need set up overlap joint hole 8 on the top of shear wall down, the size of overlap joint hole 8 is confirmed according to the diameter of the vertical muscle of second or middle row overlap joint short muscle 6, and the degree of depth can satisfy overlap joint reinforcing bar male overlap joint length requirement can, preferred overlap joint hole 8 is quad slit or round hole, and the quad slit specification is preferably 5 x 5 cm.

After the first vertical ribs 21 and the second vertical ribs 22 of the upper shear wall and the lower shear wall are connected in the above manner, a grouting layer 7 is poured at the joint of the upper shear wall and the lower shear wall, and the thickness of the grouting layer is controlled to be 1.8-2.2 cm, preferably 2 cm. In the grouting process, the grouting layer at the top of the lower shear wall can be filled, the grouting layer 7 is poured, the cast-in-place hole and the grouting hole can be simultaneously poured by pouring the grouting hole at the bottom of the upper shear wall, and the whole structure is shown in fig. 14. It should be noted that when a section steel such as an i-steel is used as the strong connecting member, two grouting holes are correspondingly formed in one cast-in-place hole, and the two grouting holes are respectively disposed on two sides of the web of the section steel, as shown in fig. 10.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an assembled hybrid connection shear force wall, includes horizontal muscle, vertical muscle and prefabricated wall body, its characterized in that:

2. The fabricated hybrid connection shear wall of claim 1, wherein the strong connecting members are formed from steel sections or plates.

3. The shear wall for assembled hybrid connection as claimed in claim 2, wherein when the strong connection member is a section steel, the distance from the edge of the cast-in-place hole to the outer edge of the flange of the section steel along the length direction of the wall is greater than or equal to 100mm, and the height of the cast-in-place hole is 200 mm and 300 mm.

4. The shear wall according to claim 2, wherein when the strong connecting member is a steel plate, the steel plate at the upper end of the first vertical rib extends out of the prefabricated wall body, and the steel plate at the lower end of the first vertical rib extends out of the prefabricated wall body.

5. The shear wall for fabricated hybrid connection as claimed in claim 2, wherein when the strong connecting member is a steel plate, the height of the cast-in-place hole is 250 mm and 450 mm.

6. An assembled hybrid connection shear wall connection structure, comprising an upper shear wall and a lower shear wall, wherein the upper shear wall and the lower shear wall are the assembled hybrid connection shear wall of the claims 1 to 5;

7. The fabricated hybrid shear wall connection of claim 6, wherein the grout layer has a thickness of 1.8-2.2 cm.