A damping and shock-absorbing assembled connection device for prefabricated shear walls

Abstract

The present invention discloses a damping and shock-absorbing assembled connection device for a prefabricated shear wall, comprising an embedded plate, which is embedded in the upper and lower connecting end sections of the prefabricated concrete shear wall by means of bolts, and a shock-absorbing support is installed between the two embedded plates; the shock-absorbing support comprises two mounting plates, a support shaft, and a shock-absorbing filler, the two mounting plates are respectively connected to the upper and lower embedded plates by means of bolts, the two ends of the support shaft are respectively connected to the upper and lower mounting plates, the shock-absorbing filler is arranged between the two mounting plates, and the support shaft is made of a soft steel pipe; a bolt hole is arranged on the mounting plate, one end of the bolt passing through the bolt hole is connected to a bolt, and a frustum is arranged axially at one end of the bolt, wherein an elastic part is arranged between the frustums at the upper and lower positions, and a sleeve is arranged on the frustum; this type of connection node is a dry construction process, the construction steps are simple, the construction efficiency can be improved, the construction period can be saved, and it is easy to inspect, the mechanical properties are excellent, and it not only has the function of earthquake resistance and energy reduction, but also has a certain shear resistance.

Description

Technical Field

[0001] The invention relates to the field of prefabricated walls, in particular to a damping and shock-absorbing assembled connection device for a prefabricated shear wall. Background Art

[0002] Prefabricated buildings are buildings assembled on site from prefabricated parts and components. Prefabricated buildings are a major reform in construction methods, which is conducive to saving resources and energy, reducing pollution, and improving labor productivity and quality safety levels. In prefabricated concrete structures, shear wall connections mainly use grouting sleeves. The main principle is: when the prefabricated components are hoisted, the open end of the grouting sleeve is aligned with and set on the reserved steel bars extending from the lower wall, the position and angle of the prefabricated components are adjusted, and the gaps at the concrete joints are sealed. After sealing, the grouting material is injected from the grouting inlet until the grouting material flows out from the grouting outlet without bubbles, and the grouting outlet and grouting inlet are sealed with rubber plugs in turn. After the grouting material reaches a certain strength, the longitudinal steel bars are connected into a whole. Problems with the existing technology: The construction period of the sleeve connection is long, the construction process is difficult to control, and it is easy to cause construction delays and cost increases; the sleeve grouting is prone to leakage and air entrapment, and the density detection is difficult; the sleeve grouting construction site is still a wet operation, which fails to fully reflect the environmental protection advantages of prefabricated buildings. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that the construction period of the sleeve connection is long, the construction process is difficult to control, and it is easy to cause construction delays and cost increases; the sleeve grouting is prone to leakage and voids, and the density detection is difficult; the sleeve grouting construction site is still a wet operation, which fails to fully reflect the environmental protection advantages of prefabricated buildings.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a damping and shock-absorbing assembled connection device for a prefabricated shear wall, comprising: an embedded plate, wherein the embedded plate is embedded in the upper and lower connecting end sections of the prefabricated concrete shear wall by means of bolts, and a shock-absorbing support is installed between the two embedded plates;

[0007] The shock-absorbing support includes two mounting plates, a support shaft, and a shock-absorbing filler. The two mounting plates are respectively connected to the upper and lower embedded plates through bolts, and the two ends of the support shaft are respectively connected to the upper and lower mounting plates. The shock-absorbing filler is arranged between the two mounting plates, and the support shaft is made of a soft steel pipe; a bolt hole is arranged on the mounting plate, and one end of the bolt passing through the bolt hole is connected with a bolt, and a frustum is axially arranged at one end of the bolt, wherein an elastic part is arranged between the frustums at the upper and lower positions, and a sleeve is arranged on the frustum, and the end of the frustum extends radially to form a limiting edge, and a recessed groove is arranged in the sleeve, and the limiting edge and the recessed groove are gap-matched; the shock-absorbing filler is formed by alternatingly overlapping steel partitions and rubber layers.

[0008] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, wherein: the two ends of the support shaft are fixedly connected with connecting heads, the mounting plate is provided with connecting holes, and the connecting heads are embedded in the connecting holes.

[0009] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, the connecting head is provided with a slide groove in the radial direction, a clamping block is provided in the slide groove, a limiting groove is provided in the connecting hole, and one end of the clamping block can be embedded in the limiting groove.

[0010] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall of the present invention, two symmetrical blocks are arranged in the slide groove, and a first spring is arranged between the two blocks.

[0011] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, wherein: a boss is arranged on the block, an adjustment hole connected to the slide groove is axially arranged on the connecting head, an adjustment member is installed in the adjustment hole, the adjustment member includes an adjustment disk, an adjustment groove is arranged on the adjustment disk, and the boss is embedded in the adjustment groove.

[0012] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, the adjustment groove is a long groove and the groove width is consistent with the diameter of the boss, and the extension line of the connecting line at both ends of the adjustment groove does not pass through the center of the adjustment disk.

[0013] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, the adjusting member also includes an adjusting column, a spiral groove is arranged on the adjusting column, a pressing member is arranged in the adjusting hole, the pressing member is provided with a through hole and is sleeved on the adjusting column, a protrusion is arranged in the through hole, and the protrusion is embedded in the spiral groove.

[0014] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, wherein: a limit block is arranged on the circumference of the pressing piece, a guide groove is arranged axially in the adjusting hole, the limit block is located in the guide groove, and the opening of the adjusting hole shrinks toward the center of the circle to form a limit circle; a second spring is arranged between the adjusting disk and the pressing piece.

[0015] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, a guide protrusion is arranged at the bottom of the slide groove along the radial direction of the connecting head, a guide groove is arranged at the position corresponding to the guide protrusion of the blocking block, and the guide protrusion is embedded in the guide groove.

[0016] As a preferred solution of the damping and shock-absorbing assembled connection device of the prefabricated shear wall described in the present invention, a limiting groove is arranged on the guide protrusion along the radial direction of the connecting head, a limiting protrusion is arranged in the guide groove, and the limiting protrusion is embedded in the limiting groove.

[0017] Beneficial effects of the present invention: The prefabricated shear wall connection node of the present invention does not need to be cast in situ, which saves construction time and cost and protects the environment; the prefabricated shear wall connection node of the present invention can achieve the effect of damping and shock absorption, and improve the seismic performance. This type of connection node is a dry construction process, with simple construction steps, which can improve construction efficiency, save construction time, and is easy to inspect. It has excellent mechanical properties and not only has seismic energy reduction functions, but also has certain shear resistance. At the same time, the connection node is convenient for assembly and disassembly, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The damping and shock absorbing assembled connection device of a prefabricated shear wall according to an embodiment of the present invention is intended to be installed on the shear wall;

[0020] Figure 2 A schematic diagram of a partial cross-sectional structure of a shock-absorbing support in a damping and shock-absorbing assembled connection device for a prefabricated shear wall according to an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a partially enlarged structure of a shock-absorbing support in a damping and shock-absorbing assembled connection device for a prefabricated shear wall according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the principle structure of the disassembly and installation plate of the shock-absorbing support in the damping and shock-absorbing assembled connection device of the prefabricated shear wall according to an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the exploded structure of a shock-absorbing support in a damping and shock-absorbing assembled connection device for a prefabricated shear wall according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1-2The present embodiment provides a damping and shock-absorbing assembled connection device for a prefabricated shear wall, comprising an embedded plate 100 and a shock-absorbing support 200, wherein the embedded plate 100 is embedded in the upper and lower connecting end sections of the prefabricated concrete shear wall by welding studs 300, that is, two embedded plates 100 are provided, and a shock-absorbing support 200 is installed between the two embedded plates 100; the shock-absorbing support 200 comprises two mounting plates 201, a support shaft 202, and a shock-absorbing filler 203, the two mounting plates 201 are respectively connected to the upper and lower embedded plates 100 by studs 300, wherein one end of the stud 300 is fixed in the prefabricated concrete shear wall, and the other end passes through the embedded plate 100 and is connected to the mounting plate 201; further, the two ends of the support shaft 202 are respectively connected to the upper and lower mounting plates 201, the shock-absorbing filler 203 is arranged between the two mounting plates 201, the support shaft 202 passes through the shock-absorbing filler 203, and the support shaft 202 is made of a soft steel pipe and has a certain shear resistance.

[0030] Furthermore, a bolt hole 201c is provided on the mounting plate 201, and one end of the bolt 300 passing through the bolt hole 201c is connected with a nut 400, and the nut 400 is used to fasten the mounting plate 201, wherein a frustum 401 is axially provided at one end of the nut 400, and the threaded hole of the nut 400 extends and passes through the frustum 401. When the upper and lower mounting plates 201 are installed on the upper and lower embedded plates 100, the upper and lower mounting plates 201 are fixed by the nuts 400 respectively, so that the two nuts 400 at the same vertical position correspond to each other, and an elastic member 500 is provided between the frustum 401 at the upper and lower positions, wherein the elastic member 500 is preferably a pressure spring.

[0031] It should be noted that the mounting plate 201 is rectangular, preferably square, and the four corners of the mounting plate 201 are provided with bolt holes 201c, so that the four corners of the shock-absorbing support 200 have bolts 300 passing through. Preferably, the truncated cone 401 is sleeved with a sleeve 600, and the end of the truncated cone 401 extends radially to form a limiting edge 402, the diameter of the limiting edge 402 is larger than the diameter of the truncated cone 401 and the inner diameter of the sleeve 600, and the sleeve 600 is provided with a recessed groove 601, the diameter of the recessed groove 601 is larger than the inner diameter of the sleeve 600, and the limiting edge 402 and the recessed groove 601 are in clearance fit; therefore, when the shock-absorbing support 200 is installed, the prefabricated shear wall located at the upper part will generate pressure on the shock-absorbing support 200, and in order to prevent the shock-absorbing support 200 from tilting to one side, the four corners of the shock-absorbing support 200 are provided with elastic members 500 and sleeves 600 for support and shock absorption.

[0032] In this embodiment, the shock-absorbing filler 203 is formed by alternately stacking a steel partition 203a and a rubber layer 203b. Connectors 204 are fixedly connected at both ends of the support shaft 202, and the mounting plate 201 is provided with a connecting hole 201a, into which the connector 204 is embedded. The use of this type of connection node is a dry construction process, the construction steps are simple, the construction efficiency can be improved, the construction period can be saved, and it is easy to inspect. It has excellent mechanical properties and not only has the function of earthquake resistance and energy reduction, but also has a certain shear resistance.

[0033] Example 2

[0034] Reference Figures 1 to 5 , which is the second embodiment of the present invention, is based on the previous embodiment, and is different from the previous embodiment in that:

[0035] The connector 204 is provided with a slide groove 204a in the radial direction, a clamping block 205 is provided in the slide groove 204a, a limiting groove 201b is provided in the connecting hole 201a, and one end of the clamping block 205 can be embedded in the limiting groove 201b. The end of the clamping block 205 extending out of the slide groove 204a is in the shape of a right triangle, wherein the right angle side can contact the side of the limiting groove 201b, thereby limiting the connector 204 from being separated from the connecting hole 201a.

[0036] Preferably, two symmetrical blocks 205 are arranged in the slide slot 204a, and a first spring 206 is arranged between the two blocks 205. The elastic force of the spring can make the block 205 extend out of the slide slot 204a.

[0037] Furthermore, a boss 205a is provided on the block 205, and an adjustment hole 204b connected to the slide groove 204a is provided along the axial direction of the connector 204, and an adjustment member 207 is installed in the adjustment hole 204b, and the adjustment member 207 includes an adjustment disk 207a, and an adjustment groove 207b is provided on the adjustment disk 207a, and the boss 205a is embedded in the adjustment groove 207b; the adjustment disk 207a can rotate in the adjustment hole 204b,

[0038] It should be noted that the adjusting groove 207b is a long groove and the groove width is consistent with the diameter of the boss 205a, and the extension line of the connecting line at both ends of the adjusting groove 207b does not pass through the center of the adjusting disk 207a. That is, the connecting line between the end of the adjusting groove 207b away from the center of the adjusting disk 207a and the end close to the center of the adjusting disk 207a does not coincide with any radius of the adjusting disk 207a, that is, when the adjusting disk 207a is rotated, the boss 205a moves in the adjusting groove 207b. When moving, the block 205 can slide in the slide groove 204a.

[0039] Furthermore, the adjusting member 207 also includes an adjusting column 207c, which is concentrically arranged with the adjusting disk 207a and connected at the end faces, wherein a spiral groove 207d is arranged on the adjusting column 207c, and the direction of the spiral groove 207d is spiral. A pressing member 208 is arranged in the adjusting hole 204b, and the pressing member 208 is provided with a through hole 208a and is sleeved on the adjusting column 207c. A protrusion 208b is arranged in the through hole 208a, and the protrusion 208b is embedded in the spiral groove 207d. When the pressing member 208 is operated to move axially, the cooperation between the protrusion 208b and the spiral groove 207d causes the adjusting column 207c to rotate, thereby driving the adjusting disk 207a to rotate.

[0040] Furthermore, a limiting block 208c is provided on the circumference of the pressing member 208, and a guide groove 204c is provided in the adjusting hole 204b along the axial direction. The limiting block 208c is located in the guide groove 204c, so that the pressing member 208 can only move along the axial direction but cannot rotate. Preferably, the opening of the adjusting hole 204b shrinks toward the center of the circle to form a limiting ring 204d, and the limiting ring 204d prevents the pressing member 208 from disengaging. Among them, a second spring 209 is provided between the adjusting disk 207a and the pressing member 208. The elastic force of the second spring 209 makes the pressing member 208 be in a position away from the block 205.

[0041] Preferably, a guide protrusion 204e is provided at the bottom of the slide groove 204a along the radial direction of the connector 204, and a guide groove 205b is provided at a position corresponding to the guide protrusion 204e of the block 205, and the guide protrusion 204e is embedded in the guide groove 205b, so that the block 205 moves along the radial direction of the connector 204 in the slide groove 204a.

[0042] Furthermore, a limiting groove 204f is provided on the guide protrusion 204e along the radial direction of the connector 204, a limiting protrusion 205c is provided in the guide groove 205b, and the limiting protrusion 205c is embedded in the limiting groove 204f to prevent the block 205 from escaping from the slide groove 204a.

[0043] Furthermore, a bolt hole 201c is provided on the mounting plate 201, and the bolt hole 201c is connected to the embedded plate 100 by welding bolts.

[0044] In the specific implementation of this embodiment, the shock-absorbing support 200 is first assembled, and after the support shaft 202 passes through the shock-absorbing filler 203 of appropriate thickness, the two ends are connected to the mounting plate 201; specifically, the connector 204 is pressed into the connecting hole 201a, and the block 205 extends from the slide groove 204a and is embedded in the limit groove 201b for fixing. If the thickness of the shock-absorbing filler 203 is not appropriate at this time, the mounting plate 201 needs to be disassembled. Specifically, the pressing member 208 is operated by a tool to move toward the block 205. At this time, the protrusion 208b cooperates with the spiral groove 207d to rotate the adjustment column 207c and move the boss 205a in the adjustment groove 207b. When moving, the block 205 can slide in the slide groove 204a, and then the block 205 is retracted into the slide groove 204a, and the mounting plate 201 can be removed to adjust the height of the shock-absorbing filler 203.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A damping and shock-absorbing assembly connection device for a prefabricated shear wall, characterized in that: include, Embedded plates (100), wherein the embedded plates (100) are embedded in the upper and lower connecting end sections of the precast concrete shear wall through bolts (300), and a shock-absorbing support (200) is installed between the two embedded plates (100); The shock-absorbing support (200) comprises two mounting plates (201), a support shaft (202), and a shock-absorbing filler (203); the two mounting plates (201) are respectively connected to the upper and lower embedded plates (100) via bolts; the two ends of the support shaft (202) are respectively connected to the upper and lower mounting plates (201); the shock-absorbing filler (203) is arranged between the two mounting plates (201); and the support shaft (202) is made of a soft steel pipe; The mounting plate (201) is rectangular; The mounting plate (201) is provided with a bolt hole (201c), one end of the bolt (300) passing through the bolt hole (201c) is connected to a nut (400), one end of the nut (400) is provided with a truncated cone (401) along the axial direction, wherein an elastic member (500) is provided between the truncated cones (401) at upper and lower positions, the truncated cone (401) is sleeved with a sleeve (600), the end of the truncated cone (401) extends radially to form a limiting edge (402), a recessed groove (601) is provided in the sleeve (600), and the limiting edge (402) and the recessed groove (601) are clearance-matched; The shock-absorbing filler (203) is formed by alternately stacking steel partitions (203a) and rubber layers (203b); Connectors (204) are fixedly connected to both ends of the support shaft (202); the mounting plate (201) is provided with a connecting hole (201a), and the connecting head (204) is embedded in the connecting hole (201a); The connector (204) is provided with a sliding groove (204a) in the radial direction, a clamping block (205) is provided in the sliding groove (204a), a limiting groove (201b) is provided in the connecting hole (201a), and one end of the clamping block (205) can be embedded in the limiting groove (201b); Two symmetrical clamping blocks (205) are arranged in the sliding groove (204a), and a first spring (206) is arranged between the two clamping blocks (205); The clamping block (205) is provided with a boss (205a), the connector (204) is provided with an adjustment hole (204b) connected to the slide groove (204a) along the axial direction, an adjustment member (207) is installed in the adjustment hole (204b), the adjustment member (207) comprises an adjustment disk (207a), an adjustment groove (207b) is provided on the adjustment disk (207a), and the boss (205a) is embedded in the adjustment groove (207b).

2. The damping and shock-absorbing assembled connection device of the prefabricated shear wall according to claim 1 is characterized in that: The adjusting groove (207b) is a long groove and the groove width is consistent with the diameter of the boss (205a); the extension line of the connecting line at both ends of the adjusting groove (207b) does not pass through the center of the adjusting disk (207a).

3. The damping and shock-absorbing assembled connection device of the prefabricated shear wall according to claim 2 is characterized in that: The adjusting member (207) further comprises an adjusting column (207c), the adjusting column (207c) being provided with a spiral groove (207d), a pressing member (208) being provided in the adjusting hole (204b), the pressing member (208) being provided with a through hole (208a) and being sleeved on the adjusting column (207c), a protrusion (208b) being provided in the through hole (208a), and the protrusion (208b) being embedded in the spiral groove (207d).

4. The damping and shock-absorbing assembled connection device of the prefabricated shear wall according to claim 3 is characterized in that: A limiting block (208c) is arranged on the circumference of the pressing member (208); a guide groove (204c) is arranged axially in the adjusting hole (204b); the limiting block (208c) is located in the guide groove (204c); the opening of the adjusting hole (204b) shrinks toward the center of the circle to form a limiting ring (204d); and a second spring (209) is arranged between the adjusting disk (207a) and the pressing member (208).

5. The damping and shock-absorbing assembled connection device of the prefabricated shear wall according to claim 4 is characterized in that: A guide protrusion (204e) is provided at the bottom of the slide groove (204a) along the radial direction of the connector (204), a guide groove (205b) is provided at a position of the clamping block (205) corresponding to the guide protrusion (204e), and the guide protrusion (204e) is embedded in the guide groove (205b).

6. The damping and shock-absorbing assembled connection device of the prefabricated shear wall according to claim 5, characterized in that: A limiting groove (204f) is arranged on the guide protrusion (204e) along the radial direction of the connector (204), a limiting protrusion (205c) is arranged in the guide groove (205b), and the limiting protrusion (205c) is embedded in the limiting groove (204f).

Images