CN114277955A - Connecting device between assembled shear wall units - Google Patents
Connecting device between assembled shear wall units Download PDFInfo
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- CN114277955A CN114277955A CN202011568678.1A CN202011568678A CN114277955A CN 114277955 A CN114277955 A CN 114277955A CN 202011568678 A CN202011568678 A CN 202011568678A CN 114277955 A CN114277955 A CN 114277955A
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Abstract
The invention discloses a connecting device between assembled shear wall units, which comprises an upper connecting plate, a lower connecting plate and a concrete filled steel tube short column, and is characterized in that: the upper connecting plate is provided with a mounting hole through which the lower end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, the lower connecting plate is provided with a mounting hole through which the upper end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, and the concrete filled steel tube short column is used for fixedly connecting the upper connecting plate and the lower connecting plate, so that the assembled shear wall units are vertically connected into a whole or are horizontally and vertically connected into a whole.
Description
Technical Field
The invention belongs to the field of assembly type buildings, and particularly relates to a connecting device between assembly type shear wall units.
Background
The existing prefabricated shear wall connection mode along the building height direction mainly comprises a grouting sleeve connection technology, a preformed hole slurry anchor lap joint connection technology and a cast-in-place belt connection mode. The grouting sleeve connection is one of more applications and mature construction technology in actual engineering, but the problems of difficult field butt joint, difficult guarantee of grouting quality in the sleeve and difficult later quality inspection still exist; in addition, the sleeve is large in diameter, and in order to ensure the position of the longitudinal ribs in the shear wall, the thickness of the concrete protective layer outside the sleeve is relatively reduced, so that the long-term durability of the structure can be influenced. Therefore, a connecting device between assembled shear wall units, which is convenient to connect, reliable in stress and convenient for later detection, is needed.
Disclosure of Invention
The invention aims to solve the problems of difficult quality detection and low installation efficiency of grouting sleeve connection in the conventional fabricated shear wall structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a connecting device between assembled shear force wall unit, includes upper junction plate, lower connecting plate and steel pipe concrete short column, its characterized in that: the upper connecting plate is provided with a mounting hole through which the lower end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, the lower connecting plate is provided with a mounting hole through which the upper end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, and the concrete filled steel tube short column is used for fixedly connecting the upper connecting plate and the lower connecting plate, so that the assembled shear wall units are vertically connected into a whole or are horizontally and vertically connected into a whole.
Further, the concrete filled steel tube stub may be replaced by: steel plates, steel pipes, i-beams, steel reinforced concrete or other elements capable of fixedly connecting the upper and lower connection plates, preferably by welding, and at least capable of being pulled and pressed.
Furthermore, the longitudinal ribs of the assembled shear wall unit are fixedly connected with the upper connecting plate or the lower connecting plate through welding or nuts.
Furthermore, the steel pipe concrete short column is geometrically centered by one end of the hollow steel pipe and the lower connecting steel plate and is connected through a welding seam, then concrete is poured, a port is ground flat or high-strength cement mortar is filled after the concrete is cured, and the upper connecting plate is geometrically centered with the steel pipe and is connected through the welding seam.
Further, when the connecting device is installed, the extending length of the end part of the longitudinal bar of the assembled shear wall unit needs to meet the requirement of welding or connection with a nut, and the horizontally distributed reinforcing bars and the vertically distributed reinforcing bars do not extend outwards.
Further, the edge member of the fabricated shear wall unit is provided with a notch to provide a space for installing the connecting device.
Further, gaps are arranged at the lower ends of the edge members of the assembled shear wall units to provide space for installing the connecting devices.
Further, the upper connecting plate and the lower connecting plate are rectangular, L-shaped, T-shaped or cross-shaped.
Further, the cross section of the concrete filled steel tube short column is rectangular, L-shaped, T-shaped or cross-shaped, so that the plane arrangement of the fabricated shear wall is adapted.
Furthermore, the steel pipe concrete short column is a single cavity, or a multi-cavity body formed by a plurality of steel pipe concrete, and the multi-cavity body comprises a cavity body of a steel pipe and a cavity body formed by the outer side wall of the steel pipe.
Furthermore, when the upper connecting plate or the lower connecting plate is connected with the longitudinal ribs through nuts, the sectional areas of the end parts of the longitudinal ribs are expanded through cold heading, threading is processed into threads, and the diameter of the bottom of the threads is not smaller than that of the original longitudinal ribs, so that the tensile strength is fully exerted.
Further, the upper connecting plate or the lower connecting plate is matched with the assembled shear wall units through the mortar layers or the gaskets, and the areas between the edge members of the assembled shear wall units are connected through the mortar layers or the gaskets.
Furthermore, the nut adopts 8.8-grade and above nuts with adaptive threads.
Further, the strength grade of the seat slurry layer is not lower than the concrete strength grade of the shear wall unit.
Further, the strength grades of the steel tube, the upper connection plate and the lower connection plate of the concrete-filled steel tube stub must not be lower than Q235.
Further, the thickness of the upper connecting plate and the lower connecting plate is not less than 8 mm.
Furthermore, the strength of the welding seams between the upper connecting plate and the steel pipe and between the lower connecting plate and the steel pipe is greater than that of the base metal.
Further, the steel tube of the steel tube concrete stub has a tensile load capacity at least equivalent to that of the longitudinal bar to which the connecting device is connected.
Further, the thickness of the steel pipe is not less than 5 mm.
Furthermore, a stiffening rib is arranged between the steel pipe of the steel pipe concrete short column and the upper connecting plate or the lower connecting plate.
Further, the diameter of the longitudinal ribs of the edge member should not be less than 14 mm.
Description of the drawings: the edge member is a restraining edge member or a construction edge member. The constraint edge component comprises a constraint edge hidden column, a constraint edge corner wall, a constraint edge flange wall or a constraint edge cross wall; the construction edge member includes a construction edge hidden column, a construction edge corner wall, a construction edge flange wall or a construction edge cross wall. The edge member of the present invention does not include a restraining edge post and a construction edge post. The transverse distribution reinforcing steel bars and the vertical distribution reinforcing steel bars among all the shear wall units are not connected. The longitudinal ribs are provided only in the region of the edge members. The stirrups are arranged around the longitudinal bars, and the tie bars are connected with the transversely distributed reinforcing steel bars and the vertically distributed reinforcing steel bars in a rectangular or quincunx shape.
The invention also comprises a construction method of the assembled shear wall structure, which comprises the following steps:
(1) installing a lower-layer assembled shear wall unit and a floor slab, pouring laminated concrete and reserving overhanging longitudinal ribs of edge members of the lower-layer assembled shear wall unit; floors may not be arranged between the fabricated shear wall units.
(2) Roughening the base slurry area at the bottom of the upper-layer assembled shear wall unit, arranging a cushion block capable of adjusting the thickness of a joint and the elevation of the bottom, and paving a base slurry layer at the same time;
(3) hoisting a connecting device, namely passing the upper ends of the overhanging longitudinal ribs of the edge component of the lower-layer assembled shear wall unit through a lower connecting plate mounting hole of the connecting device, and performing nut or welding connection;
(4) paving a base slurry layer or an elastic material on the surface of the upper connecting plate, or arranging a gasket;
(5) and hoisting the upper-layer assembled shear wall unit, wherein the lower end of the outward extending longitudinal rib of the edge member of the upper-layer assembled shear wall unit passes through the upper connecting plate mounting hole of the connecting device and is connected by nuts or welding.
Compared with the prior shear wall assembly technology, the technical scheme of the invention has the following beneficial effects:
1. the invention uses the concrete filled steel tube short column for the connection of the assembled shear wall, provides reliable vertical connection between the assembled shear wall units, and avoids the defects caused by using a grouting sleeve connection technology, a preformed hole slurry anchor lap joint technology and a cast-in-place strip connection mode. Meanwhile, the good tensile and compressive properties of the steel pipe concrete short column can be fully exerted, and the structural bearing capacity of the fabricated shear wall is improved. When the connecting device connects the assembled shear wall units into a whole in the transverse direction and the vertical direction, the connecting device can bear vertical shear force at the transverse splicing position of the assembled shear wall units.
2. The invention solves the problem of difficult quality detection in the existing sleeve grouting connection mode, and ensures the reliable connection of the reinforcing steel bars and improves the detection efficiency and reduces the detection difficulty by welding the longitudinal ribs of the edge member with the upper connecting plate or the lower connecting plate or connecting the longitudinal ribs with nuts.
3. The invention ensures that the stress path of the structure is simple and clear, and the shear force of the shear wall structure is completely born by the longitudinal ribs and the base slurry layer.
4. According to the vertical connection technology of the shear wall, due to the fact that bolt connection is adopted, on-site grouting is not needed, the environmental temperature during structural construction does not need to be considered, winter construction can be achieved, and compared with grouting sleeve connection depending on the environmental temperature, the vertical connection technology of the shear wall greatly shortens the construction period of the whole shear wall structure.
Drawings
The invention can be further illustrated by the non-limiting embodiments presented in the figures of the accompanying drawings:
FIG. 1 is an isometric view of a rectangular longitudinal connecting means in an embodiment of the invention;
FIG. 2 is a cross-sectional view of a rectangular longitudinal connecting means in an embodiment of the present invention;
FIG. 3 is an isometric view of a rectangular transverse and longitudinal connecting means in an embodiment of the invention;
FIG. 4 is a cross-sectional view of a rectangular transverse and longitudinal connecting means in an embodiment of the invention;
FIG. 5 is an isometric view of an L-shaped longitudinal connector in an embodiment of the present invention;
FIG. 6 is a cross-sectional view of an L-shaped longitudinal attachment means in an embodiment of the present invention;
FIG. 7 is an isometric view of a T-shaped longitudinal connector in an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a T-shaped longitudinal attachment means in an embodiment of the present invention;
FIG. 9 is an isometric view of a cruciform longitudinal attachment in an embodiment of the invention;
FIG. 10 is a cross-sectional view of a cruciform longitudinal attachment in an embodiment of the present invention;
FIG. 11 is an isometric view of a multi-lumen rectangular transverse and longitudinal connecting means in an embodiment of the present invention;
FIG. 12 is a cross-sectional view of a multi-lumen rectangular transverse and longitudinal attachment device in an embodiment of the present invention;
FIG. 13 is an isometric view of a multi-lumen L-shaped longitudinal attachment device in an embodiment of the present invention;
FIG. 14 is a cross-sectional view of a multi-lumen L-shaped longitudinal attachment device in an embodiment of the present invention;
FIG. 15 is an isometric view of a rectangular fabricated shear wall unit in an embodiment of the invention;
FIG. 16 is an isometric view of an L-shaped fabricated shear wall unit in an embodiment of the invention;
FIG. 17 is an isometric view of a T-shaped fabricated shear wall unit in an embodiment of the invention;
FIG. 18 is an isometric view of a cross-shaped fabricated shear wall unit in an embodiment of the invention;
FIG. 19 is an isometric view of a rectangular fabricated shear wall structure with only vertical connections in an embodiment of the invention;
FIG. 20 is an isometric view of a rectangular fabricated shear wall structure in an embodiment of the invention;
FIG. 21 is an isometric view of an L-shaped fabricated shear wall structure in an embodiment of the invention;
FIG. 22 is an isometric view of a T-shaped fabricated shear wall structure in an embodiment of the invention;
FIG. 23 is an isometric view of a cruciform assembly shear wall structure in an embodiment of the invention;
FIG. 24 is a schematic view of an installation of a fabricated shear wall structure in an embodiment of the invention;
FIG. 25 is a ribbed cross-sectional view of a rectangular fabricated shear wall unit in an embodiment of the present invention;
FIG. 26 is a side view of reinforcement for a rectangular fabricated shear wall unit in an embodiment of the present invention.
In the figure:
1-a connecting device; 2-an upper connecting plate; 3-a lower connecting plate; 4-a steel pipe concrete short column; 5-mounting holes; 6-welding seams; 7-fabricated shear wall units; 8-longitudinal ribs; 9-a nut; 10-a mortar layer; 11-an edge member; 12-a floor slab; 13-vertically distributing reinforcing steel bars; 14-a stirrup; 15-horizontally distributing reinforcing steel bars; 16-tie bars.
Detailed Description
In order that those skilled in the art may better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings.
Embodiment mode 1:
the utility model provides a connecting device 1 between assembled shear force wall unit, includes upper junction plate 2, lower connecting plate 3 and steel pipe concrete short column 4, its characterized in that: the upper connecting plate 2 is provided with mounting holes 5 through which the lower ends of longitudinal ribs 8 of edge members 11 of the assembled shear wall units 7 can pass and be connected with the upper connecting plate, the lower connecting plate 3 is provided with mounting holes 5 through which the upper ends of the longitudinal ribs 8 of the edge members 11 of the assembled shear wall units 7 can pass and be connected with the lower connecting plate, and the concrete filled steel tube short columns 4 fixedly connect the upper connecting plate 2 and the lower connecting plate 3, so that the assembled shear wall units 7 are vertically connected into a whole (such as figures 1, 2, 5-10 and 19) or transversely and vertically connected into a whole (such as figures 3, 4 and 20-23).
Further, the longitudinal ribs 8 of the fabricated shear wall unit 7 are fixedly connected with the upper connecting plate 2 or the lower connecting plate 3 through welding or nuts 9 (as shown in fig. 24).
Furthermore, the steel pipe concrete short column 4 is geometrically centered with the lower connecting plate 3 by one end of the hollow steel pipe and is connected by the welding line 6, then concrete is poured, a port is ground flat or high-strength cement mortar is filled after the concrete is cured, and the upper connecting plate 2 is geometrically centered with the steel pipe and is connected by the welding line 6.
Further, when the connecting device 1 is installed, the ends of the longitudinal bars 8 of the fabricated shear wall unit 7 extend at least 100mm outwards, and the horizontal distribution bars 15 and the vertical distribution bars 13 do not extend outwards (see fig. 15-18).
Embodiment mode 2:
the utility model provides a connecting device 1 between assembled shear force wall unit, includes upper junction plate 2, lower connecting plate 3 and steel pipe concrete short column 4, its characterized in that: the upper connecting plate 2 is provided with mounting holes 5 through which the lower ends of longitudinal ribs 8 of edge members 11 of the assembled shear wall units 7 can pass and be connected with the upper connecting plate, the lower connecting plate 3 is provided with mounting holes 5 through which the upper ends of the longitudinal ribs 8 of the edge members 11 of the assembled shear wall units 7 can pass and be connected with the lower connecting plate, and the concrete filled steel tube short columns 4 fixedly connect the upper connecting plate 2 and the lower connecting plate 3, so that the assembled shear wall units 7 are vertically connected into a whole (such as figures 1, 2, 5-10 and 19) or transversely and vertically connected into a whole (such as figures 3, 4 and 20-23).
Further, the edge members 11 of the fabricated shear wall unit 7 are notched to provide space for mounting the connector device 1 (see fig. 15-18).
Further, the lower end of the edge member 11 of the fabricated shear wall unit 7 is notched to provide space for mounting the connector 1 (see fig. 15-18).
Further, the upper connecting plate 2 and the lower connecting plate 3 are rectangular, L-shaped, T-shaped or cross-shaped (see FIGS. 1-14).
Further, the concrete filled steel tube stub 4 has a rectangular, L-shaped, T-shaped, or cross-shaped cross-section to accommodate the planar arrangement of fabricated shear walls (see fig. 1-10).
Further, the concrete filled steel tube stub 4 is a single cavity, or a multi-cavity composed of a plurality of concrete filled steel tube stubs 4 (see fig. 11 to 14), and the multi-cavity includes a cavity of a steel tube and a cavity composed of outer side walls of the steel tube.
Embodiment mode 3:
the utility model provides a connecting device 1 between assembled shear force wall unit, includes upper junction plate 2, lower connecting plate 3 and steel pipe concrete short column 4, its characterized in that: the upper connecting plate 2 is provided with mounting holes 5 through which the lower ends of longitudinal ribs 8 of edge members 11 of the assembled shear wall units 7 can pass and be connected with the upper connecting plate, the lower connecting plate 3 is provided with mounting holes 5 through which the upper ends of the longitudinal ribs 8 of the edge members 11 of the assembled shear wall units 7 can pass and be connected with the lower connecting plate, and the concrete filled steel tube short columns 4 fixedly connect the upper connecting plate 2 and the lower connecting plate 3, so that the assembled shear wall units 7 are vertically connected into a whole (such as figures 1, 2, 5-10 and 19) or transversely and vertically connected into a whole (such as figures 3, 4 and 20-23).
Furthermore, when the upper connecting plate 2 or the lower connecting plate 3 is connected with the longitudinal ribs 8 through the nuts 9, the sectional areas of the end parts of the longitudinal ribs 8 are enlarged through cold heading, threading is processed into threads, and the diameter of the thread bottom is not smaller than the diameter of the original longitudinal ribs, so that the tensile strength is fully exerted.
Further, the upper connecting plate 2 or the lower connecting plate 3 is matched with the fabricated shear wall unit 7 through a mortar layer 10 or a gasket, the area between the edge members 11 of the fabricated shear wall unit 7 is connected by using the mortar layer 10 or the gasket, the fabricated shear wall unit 7 is connected with the floor 12 by using the mortar layer 10 or the gasket when the floor 12 is provided, and the area between the edge members 11 of the fabricated shear wall unit 7 is directly connected by using the mortar layer 10 or the gasket when the floor 12 is not provided (as shown in fig. 24).
Embodiment mode 3:
the utility model provides a connecting device 1 between assembled shear force wall unit, includes upper junction plate 2, lower connecting plate 3 and steel pipe concrete short column 4, its characterized in that: the upper connecting plate 2 is provided with mounting holes 5 through which the lower ends of longitudinal ribs 8 of edge members 11 of the assembled shear wall units 7 can pass and be connected with the upper connecting plate, the lower connecting plate 3 is provided with mounting holes 5 through which the upper ends of the longitudinal ribs 8 of the edge members 11 of the assembled shear wall units 7 can pass and be connected with the lower connecting plate, and the concrete filled steel tube short columns 4 fixedly connect the upper connecting plate 2 and the lower connecting plate 3, so that the assembled shear wall units 7 are vertically connected into a whole (such as figures 1, 2, 5-10 and 19) or transversely and vertically connected into a whole (such as figures 3, 4 and 20-23).
Further, the nut 9 adopts 8.8-grade and above nuts with adaptive threads.
Further, the strength grade of the setting mortar layer 10 is not lower than that of the concrete of the shear wall unit 7.
Further, the strength grade of the steel pipe of the concrete-filled steel pipe stub 4, the upper connection plate 2 and the lower connection plate 3 is not lower than Q235.
Further, the thickness of the upper connecting plate 2 and the lower connecting plate 3 is not less than 8 mm.
Further, the strength of the welding seam 6 between the upper connecting plate 2 and the lower connecting plate 3 and the steel pipe is larger than that of the base metal.
Further, the steel pipe of the concrete filled steel tubular stub 4 has a tensile load capacity at least equivalent to that of the longitudinal bar 8 to which the connection device 1 is connected.
Further, the thickness of the steel pipe is not less than 5 mm.
Furthermore, a stiffening rib is arranged between the steel pipe of the steel pipe concrete short column 4 and the upper connecting plate 2 or the lower connecting plate 3.
Further, the diameter of the longitudinal ribs 8 of the edge member 11 should not be less than 14 mm.
Embodiment 4:
the concrete filled steel tube stub 4 described above may be replaced by: steel plates, steel pipes, i-beams, steel reinforced concrete or other elements capable of fixedly connecting the upper connecting plate 2 and the lower connecting plate 3, preferably by welding 6, and at least capable of being pulled and pressed.
The longitudinal ribs 8 are provided only in the region of the edge members 11. The stirrups 14 are arranged around the longitudinal bars 8, and the tie bars 16 connect the transverse distribution reinforcing steel bars 15 and the vertical distribution reinforcing steel bars 13 in a rectangular or quincunx shape (as shown in figures 25 and 26).
Embodiment 5:
the construction method of the fabricated shear wall structure (as shown in fig. 19-23) has the following process:
(1) installing a lower-layer assembled shear wall unit 7 and a floor slab 12, pouring laminated concrete and reserving an outward extending longitudinal rib 8 of an edge member 11 of the lower-layer assembled shear wall unit 7; no floor slab may be provided between the fabricated shear wall units 7.
(2) Roughening the base slurry area at the bottom of the upper-layer assembled shear wall unit 7, arranging a cushion block capable of adjusting the thickness of a joint and the elevation of the bottom, and paving a base slurry layer 10;
(3) hoisting the connecting device 1, passing the upper ends of the overhanging longitudinal ribs 8 of the edge members 11 of the lower-layer assembled shear wall unit 7 through the mounting holes 5 of the lower connecting plate 3 of the connecting device 1, and performing nut 9 or welding connection;
(4) paving a seat slurry layer 10 or an elastic material on the surface of the upper connecting plate 2, or arranging a gasket;
(5) the lower ends of the overhanging longitudinal ribs 8 of the edge members 11 of the upper-layer assembled shear wall unit 7 pass through the mounting holes 5 of the upper connecting plate 2 of the connecting device 1 and are connected by nuts 9 or welding (as shown in figure 24).
In addition, technical features related to the shear wall such as the hidden beams and the holes are not shown in the drawings in order to simplify the drawings.
Claims (10)
1. The utility model provides a connecting device between assembled shear force wall unit, includes upper junction plate, lower connecting plate and steel pipe concrete short column, its characterized in that: the upper connecting plate is provided with a mounting hole through which the lower end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, the lower connecting plate is provided with a mounting hole through which the upper end of a longitudinal rib of the edge member of the assembled shear wall unit can pass and is connected with the edge member of the assembled shear wall unit, and the concrete filled steel tube short column is used for fixedly connecting the upper connecting plate and the lower connecting plate, so that the assembled shear wall units are vertically connected into a whole or are horizontally and vertically connected into a whole.
2. A connection device between fabricated shear wall units according to claim 1, wherein: the steel pipe concrete stub may be replaced by: steel plates, steel pipes, i-steel, steel reinforced concrete or other members capable of fixedly connecting the upper and lower connecting plates and capable of being at least in tension and compression.
3. A connection device between fabricated shear wall units according to claim 1, wherein: the longitudinal ribs of the assembled shear wall units are fixedly connected with the upper connecting plate or the lower connecting plate through welding or nuts.
4. A connection arrangement between fabricated shear wall units according to claims 1-3, wherein: when the connecting device is installed, the extending length of the end part of the longitudinal bar of the assembled shear wall unit needs to meet the requirement of welding or connection with a nut, and the horizontally distributed reinforcing steel bars and the vertically distributed reinforcing steel bars do not extend outwards.
5. A connection device between fabricated shear wall units according to claim 1, wherein: the upper connecting plate and the lower connecting plate are rectangular, L-shaped, T-shaped or cross-shaped.
6. A connection device between fabricated shear wall units according to claim 1, wherein: the cross section of the concrete filled steel tube short column is rectangular, L-shaped, T-shaped or cross-shaped, and the concrete filled steel tube short column is a single cavity or a multi-cavity formed by a plurality of concrete filled steel tubes.
7. A connection device between fabricated shear wall units according to claim 1, wherein: when the upper connecting plate or the lower connecting plate is connected with the longitudinal ribs through nuts, the sectional areas of the end parts of the longitudinal ribs are enlarged through cold heading, threading is processed into threads, and the diameter of the bottom of the threads is not smaller than the diameter of the original longitudinal ribs.
8. A connection device between fabricated shear wall units according to claim 1, wherein: the upper connecting plate or the lower connecting plate is matched with the assembled shear wall units through seat slurry or gaskets, and the areas between the edge members of the assembled shear wall units are connected through seat slurry layers or gaskets.
9. A connection device between fabricated shear wall units according to claim 1, wherein: the steel pipe concrete short column is connected with the upper connecting plate and the lower connecting plate through welding seams.
10. A connection arrangement between fabricated shear wall units according to claims 1-2, wherein: the lower end of the edge member of the assembled shear wall unit is provided with a notch to provide a space for installing the connecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568678.1A CN114277955A (en) | 2020-12-25 | 2020-12-25 | Connecting device between assembled shear wall units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568678.1A CN114277955A (en) | 2020-12-25 | 2020-12-25 | Connecting device between assembled shear wall units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114277955A true CN114277955A (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011568678.1A Pending CN114277955A (en) | 2020-12-25 | 2020-12-25 | Connecting device between assembled shear wall units |
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| Country | Link |
|---|---|
| CN (1) | CN114277955A (en) |
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2020
- 2020-12-25 CN CN202011568678.1A patent/CN114277955A/en active Pending
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