Shear wall structure of fabricated building

Abstract

The invention relates to a shear wall structure of an assembly type building in the field of shear walls, after deformation of a prefabricated shear plate reaches a certain degree, the connecting position of a cast-in-place foundation and the prefabricated shear plate, namely the position where a connecting steel sleeve and a displacement detection ring are located, also deforms, so that the connecting steel sleeve and the displacement detection ring deform, and the deformation of the prefabricated shear plate is caused. And when the ring body is broken along the movable notch, the ring body temporarily loses efficacy, the upper part of the ring body integrally falls down and the bottom of the shortest supporting column is in contact with the bottom of the corresponding displacement groove, the supporting effect is achieved again, the continuous deformation speed of the connecting steel sleeve and the displacement detection ring is reduced, and the corresponding marking block is squeezed to be broken, so that the marking liquid flows out. The marking liquid permeates through the permeation rod, maintenance personnel can inspect the permeation rod regularly so as to detect the use condition of the prefabricated shear plate, and the maintenance personnel can roughly judge the deformation degree of the prefabricated shear plate according to the color of the marking liquid seeped out of the permeation rod and arrange maintenance work.

Description

Technical Field

[0001] The present invention relates to a shear wall structure of an assembled building, and in particular to a shear wall structure of an assembled building applied in the field of shear walls. Background Art

[0002] Shear walls are also called wind-resistant walls, earthquake-resistant walls or structural walls. They are walls in houses or structures that mainly bear horizontal and vertical loads caused by wind loads or earthquakes to prevent structural shear damage. They are also called earthquake-resistant walls and are generally made of reinforced concrete. Prefabricated shear walls refer to shear walls that are prepared in a standardized manner and then transported to the construction site for hoisting and installation.

[0003] The invention patent CN113958147B specification discloses a structure and method for reinforcing a damaged connecting beam for improving the shock absorption effect. The reinforcement structure includes a fixed steel plate for connecting a shear wall and a connecting beam, an elastic memory steel plate located in the middle of two sections of the connecting beam for connecting two groups of front and rear fixed steel plates, and a steel tube lead core damper and a pure lead core damper located between the elastic memory steel plate and the connecting beam. The reinforcement method includes cutting the connecting beam, placing a fixed steel plate, prefabricating a steel tube lead core damper and a pure lead core damper, secondary processing of the elastic memory steel plate, installing an I-beam and tightening bolts for reinforcement. The connecting beam reinforcement structure of the present invention significantly improves the mechanical strength of the connecting beam, and greatly improves the shear resistance and torsion resistance. When encountering a slight earthquake or wind impact, the damper can provide a certain stiffness to resist deformation. When encountering a strong earthquake, the damper can consume a large amount of energy for the building through the yield deformation. It is also easy to replace after damage, and has strong practicality.

[0004] Before encountering a destructive strong earthquake, the building structure of most buildings will undergo slight changes under the influence of external forces such as wind. These changes will gradually increase with the accumulation of time. Once the deformation reaches the limit, the structural strength of the building will be greatly reduced, causing the building to become a dangerous building. In the above-mentioned patent, only the shear wall auxiliary structure for resisting strong earthquakes is disclosed, which is relatively insufficient in protecting the safety of life and property. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the prior art only discloses a shear wall auxiliary structure for resisting strong earthquakes, which is relatively insufficient in protecting the safety of life and property.

[0006] In order to solve the above problems, the present invention provides a shear wall structure of an assembled building, comprising a cast-in-place foundation and a prefabricated shear plate whose positions match each other, and the prefabricated shear plate is located at the upper end of the cast-in-place foundation, the cast-in-place foundation comprises a base, and a plurality of connecting steel bars are fixedly connected to the upper end of the base, a plurality of casting cavities whose positions match the connecting steel bars are excavated at one end of the prefabricated shear plate close to the cast-in-place foundation, a pair of casting channels are excavated on the side walls of the plurality of casting cavities, and the two casting channels are connected to the casting cavities and the outside, a connecting channel is excavated in the prefabricated shear plate, and the connecting channel connects the connected casting cavities, a connecting steel sleeve is fixedly connected in the casting cavity, and there is a gap between the connecting steel sleeve and the connecting steel bar;

[0007] The connecting steel sleeve includes a steel sleeve main body, a casting port matching the casting cavity is bored on the steel sleeve main body, a displacement detection ring is provided on the outer side of the steel sleeve main body, and the displacement detection ring includes a ring body, a pair of movable notches are bored on the side wall of the ring body, a plurality of displacement grooves are bored at the lower ends of the two movable notches, the depths of the plurality of displacement grooves are different, a plurality of support columns matching the positions of the displacement grooves are fixedly connected to the upper ends of the movable notches, the distances between the bottom ends of the plurality of support columns and the bottom ends of the corresponding displacement grooves increase with the increase of the length of the support columns, a marking block is fixedly connected to the bottom end of the displacement groove, a marking liquid is filled in the marking block, a plurality of marking channels matching the positions of the casting channels are bored on the prefabricated shear plate, and the marking channels are plugged with penetration rods matching themselves.

[0008] In the shear wall structure of the above-mentioned prefabricated building, when the shear plate is excessively deformed during use, the displacement detection ring will be damaged, thereby destroying the structure of the marking block and causing the marking liquid to flow out. Maintenance personnel can judge the degree of deformation of the shear plate based on the marking liquid and arrange maintenance work reasonably.

[0009] As a further improvement of the present application, the sizes of the multiple support columns correspond to each other, and the sizes of the multiple displacement grooves also correspond to each other, and the support columns and displacement grooves with corresponding sizes are symmetrical about the axis of the ring body, so that the support columns that play a supporting role are always a pair of centrally symmetrical ones, which is convenient for maintaining force balance.

[0010] As a further improvement of the present application, multiple slurry flow channels are opened on the outer wall of the ring body, which respectively match the multiple displacement grooves, and the slurry flow channels connect the displacement grooves and the bottom of the ring body, providing a flow channel for the outflowing marking liquid, so that the marking liquid can seep out through the penetration rod and issue an alarm.

[0011] As a further improvement of the present application, a gas with a pungent odor is added to the marking liquid, and the pungent odor gas is selected to be volatile and non-toxic to the human body. The presence of the pungent odor gas can cause deformation in the displacement detection ring. When the marking block is broken, the personnel in the building can promptly discover the excessive deformation of the prefabricated shear plate and promptly contact the maintenance personnel for maintenance to avoid further development of the deformation of the prefabricated shear plate. Even if no one is in the building when the marking block is broken, the maintenance personnel can also discover the excessive deformation of the prefabricated shear plate relatively promptly through the marking liquid.

[0012] As another improvement of the present application, the marking liquids filled in the multiple marking blocks are of different colors, and the marking liquid filled in the marking block in the deepest displacement groove is mixed with oxidative color-changing pigments. The maintenance personnel can roughly judge the degree of deformation of the prefabricated shear plate according to the color of the marking liquid seeping out of the penetration rod, and arrange the maintenance work reasonably.

[0013] As an improvement of the present application, the displacement groove is wide at the top and narrow at the bottom, and the width of the displacement groove at the narrowest point is smaller than the width of the support column, which can effectively reduce the falling speed of the support column and avoid the support column from breaking when falling.

[0014] As another improvement of the present application, the marking block includes an elastic shell, in which a plurality of support rods are loaded. The plurality of support rods are overlapped with each other to form a three-dimensional spatial structure. The three-dimensional spatial structure formed by the support rods is utilized to cushion the falling of the support column, thereby reducing the falling speed of the support column.

[0015] As another improvement supplement of the present application, the support rod has a hollow structure, and the inner wall of the support rod is coated with a coating that is affinity with the marking liquid, which further increases the buffering effect of the marking block. At the same time, the marking liquid has a certain lubricating effect, reducing the impact caused by the breakage of the support rod.

[0016] As an improvement of the present application, the penetration rod includes a rod body, in which a hard block is mixed. The penetration rod is made of a high-porosity material, and the hard block is made of a high-strength material. After the prefabricated shear plate is excessively deformed and squeezes the rod body, it is not easy to compact the rod body, leaving a flow channel for the marking liquid.

[0017] In summary, in the present application, after the deformation of the prefabricated shear plate occurs to a certain extent, deformation will also occur at the connection between the cast-in-place foundation and the prefabricated shear plate, that is, the location where the connecting steel sleeve and the displacement detection ring are located, causing the connecting steel sleeve and the displacement detection ring to deform until the ring body breaks along the movable notch, the ring body temporarily fails, and the upper part of the ring body falls as a whole until the bottom of the shortest supporting column contacts the bottom of the corresponding displacement groove, and then plays a supporting role again, slowing down the speed at which the connecting steel sleeve and the displacement detection ring continue to deform, and the corresponding marking block is squeezed to break, so that the marking liquid flows out and penetrates through the penetration rod. Maintenance personnel can regularly inspect the penetration rod to detect the use of the prefabricated shear plate. After the prefabricated shear plate undergoes further deformation, the supporting column that plays a supporting role will continue to break, and the upper part of the ring body will continue to fall, and the remaining longest support column will play a temporary supporting role. Maintenance personnel can roughly judge the degree of deformation of the prefabricated shear plate according to the color of the marking liquid seeping out of the penetration rod, and arrange maintenance work reasonably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the assembled shear wall after installation according to the first embodiment of the present application;

[0019] Figure 2 This is a structural schematic diagram of the installation of the assembled shear wall according to the first embodiment of the present application;

[0020] Figure 3 This is a front cross-sectional view of the assembled shear wall after installation according to the first embodiment of the present application;

[0021] Figure 4 This is an exploded view of the main structure of the connecting steel sleeve and the displacement detection ring in the first embodiment of the present application;

[0022] Figure 5 This is a schematic structural diagram of a connecting steel sleeve and a displacement detection ring in the first embodiment of the present application;

[0023] Figure 6 This is a front cross-sectional view of the connecting steel sleeve and the displacement detection ring of the first embodiment of the present application;

[0024] Figure 7 It is a partial schematic diagram of the structural support column of the displacement detection ring of the second embodiment of the present application;

[0025] Figure 8 This is a schematic diagram of the structure of a marking block according to a second embodiment of the present application;

[0026] Fig. 9 This is a schematic cross-sectional structure diagram of a marking block according to a second embodiment of the present application;

[0027] Fig.10This is a schematic structural diagram of the penetration rod according to the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1 cast-in-place foundation, 101 base, 102 connecting steel bars, 2 precast shear plates, 3 casting cavities, 4 casting channels, 5 connecting channels, 6 connecting steel sleeves, 601 steel sleeve main body, 602 casting ports, 7 displacement detection rings, 701 ring bodies, 702 displacement grooves, 703 supporting columns, 704 slurry flow channels, 8 marking blocks, 801 elastic shells, 802 supporting rods, 9 penetration rods, 901 rod bodies, 902 hard blocks. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-6 A shear wall structure of an assembled building is shown, comprising a cast-in-place foundation 1 and a prefabricated shear plate 2 whose positions match each other, and the prefabricated shear plate 2 is located at the upper end of the cast-in-place foundation 1, the cast-in-place foundation 1 comprises a base 101, and a plurality of connecting steel bars 102 are fixedly connected to the upper end of the base 101, and a plurality of casting cavities 3 whose positions match the connecting steel bars 102 are excavated at one end of the prefabricated shear plate 2 close to the cast-in-place foundation 1, and a pair of casting channels 4 are excavated on the side walls of the plurality of casting cavities 3, and the two casting channels 4 are connected to the casting cavities 3 and the outside, and a connecting channel 5 is excavated in the prefabricated shear plate 2, and the connecting channel 5 connects the connected casting cavities 3, and in particular, when the connecting channel 5 is excavated, it is convenient for technicians to connect a plurality of adjacent casting cavities 3 to form an integral casting cavity, which is convenient for casting work during the installation process without affecting the overall structural strength of the prefabricated shear plate 2, and a connecting steel sleeve 6 is fixedly connected in the casting cavity 3, and there is a gap between the connecting steel sleeve 6 and the connecting steel bar 102;

[0033] The connecting steel sleeve 6 includes a steel sleeve main body 601, on which a pouring port 602 matching the pouring cavity 3 is excavated, and a displacement detection ring 7 is provided on the outer side of the steel sleeve main body 601. The displacement detection ring 7 includes a ring body 701, and a pair of movable notches are excavated on the side wall of the ring body 701. The lower ends of the two movable notches are each excavated with a plurality of displacement grooves 702, and the depths of the plurality of displacement grooves 702 are different. The upper end of the movable notch is fixedly connected with a plurality of support columns 703 matching the position of the displacement grooves 702, and the distance between the bottom ends of the plurality of support columns 703 and the corresponding bottom ends of the displacement grooves 702 increases with the increase of the length of the support columns 703. The bottom end of the displacement groove 702 is fixedly connected with a marking block 8, and the marking block 8 is filled with marking liquid. The prefabricated shear plate 2 is provided with a plurality of marking channels matching the position of the pouring channel 4, and the marking channels are plugged with self-matching penetration rods 9.

[0034] In this solution, after the manufactured prefabricated shear panel 2 is transported to the construction site, a base 101 is cast at the location where the prefabricated shear panel 2 needs to be installed, and the connecting steel bars 102 are fixed when the base 101 is cast according to the position of the casting cavity 3 on the prefabricated shear panel 2. Before the connecting steel bars 102 are installed, the upper end of the base 101 is cleaned, and auxiliary lines for installation are made according to the specifications of the prefabricated shear panel 2. The prefabricated shear panel 2 is then hoisted and installed using a crane. After the installation is completed, the prefabricated shear panel 2 is temporarily fixed using a bracket, and then the connection between the cast-in-place foundation 1 and the prefabricated shear panel 2 is sealed with cement. Finally, the casting cavity 3 is cast with cement slurry. In particular, the casting cavity 3 connected by the connecting channel 5 needs to be cast at one time, and the casting cannot be stopped halfway. After the casting is completed and the cement slurry is completely solidified, the bracket is removed to complete the installation of the prefabricated shear panel 2.

[0035] During the use of the prefabricated shear plate 2, it will undergo slight deformations under the influence of external forces such as wind, and these deformations will also affect the structural strength of the prefabricated shear plate 2. After the cast-in-place foundation 1 and the prefabricated shear plate 2 form a whole, the strength of the connection between them is the lowest. Therefore, the above-mentioned impact is most likely to cause damage to the connection between the cast-in-place foundation 1 and the prefabricated shear plate 2, thereby causing the installation of the prefabricated shear plate 2 to fail, causing the building to fail and be damaged, and threatening the user's life and property safety.

[0036] Under normal circumstances, the failure and damage of the prefabricated shear plate 2 usually accumulates gradually over time, so it is a slow process. After the deformation of the prefabricated shear plate 2 reaches a certain extent, the connection between the cast-in-place foundation 1 and the prefabricated shear plate 2, that is, the location where the connecting steel sleeve 6 and the displacement detection ring 7 are located, will also deform, causing the connecting steel sleeve 6 and the displacement detection ring 7 to deform, until the ring body 701 breaks along the active notch, the ring body 701 temporarily fails, and the upper part of the ring body 701 falls as a whole until the bottom of the shortest support column 703 is aligned with the corresponding position. The bottom of the displacement groove 702 contacts and plays a supporting role again, slowing down the speed of the continued deformation of the connecting steel sleeve 6 and the displacement detection ring 7, and squeezing the corresponding marking block 8 to allow the marking liquid to flow out and penetrate through the penetration rod 9. The maintenance personnel can regularly inspect the penetration rod 9 to detect the use of the prefabricated shear plate 2. After the prefabricated shear plate 2 is further deformed, the supporting support column 703 will continue to break, and the upper part of the ring body 701 will continue to fall, and the remaining longest support column 703 will play a temporary supporting role.

[0037] In particular, in the present solution, for the convenience of display, each structure is not drawn strictly in proportion, and those skilled in the art can reasonably design the size of each structure according to actual usage requirements. Similarly, those skilled in the art can also reasonably design the shape of each structure according to actual usage requirements. This is a known technology to those skilled in the art, and therefore is not disclosed in detail in this application.

[0038] The sizes of the plurality of support columns 703 correspond to each other, and the sizes of the plurality of displacement grooves 702 also correspond to each other, and the support columns 703 and displacement grooves 702 of corresponding sizes are symmetrical about the axis center of the ring body 701, so that the support columns 703 that play a supporting role are always a pair of centrally symmetrical ones, which is convenient for maintaining force balance. The outer wall of the ring body 701 is opened with a plurality of slurry flow channels 704 at positions that match the plurality of displacement grooves 702 respectively, and the slurry flow channels 704 connect the displacement grooves 702 and the bottom of the ring body 701, providing a flow channel for the outflowing marking liquid, so that the marking liquid can seep out through the penetration rod 9 and issue a warning. The marking liquid is mixed with a gas with an irritating odor, and the irritating odor gas is a volatile gas that is non-toxic to the human body. The presence of pungent odor gas can cause deformation in the displacement detection ring 7. When the marking block 8 is broken, the personnel in the building can promptly discover the excessive deformation of the prefabricated shear plate 2 and promptly contact the maintenance personnel for maintenance to avoid further deformation of the prefabricated shear plate 2. Even if no one is in the building when the marking block 8 is broken, the maintenance personnel can also relatively promptly discover the excessive deformation of the prefabricated shear plate 2 through the marking liquid. The marking liquids filled in multiple marking blocks 8 have different colors, and the marking liquid filled in the marking block 8 in the deepest displacement groove 702 is mixed with oxidative color-changing pigments. The maintenance personnel can roughly judge the degree of deformation of the prefabricated shear plate 2 according to the color of the marking liquid seeping out of the penetration rod 9, and arrange maintenance work reasonably.

[0039] The second implementation method:

[0040] Figure 7 A displacement detection ring 7 is shown, in which the displacement groove 702 is wide at the top and narrow at the bottom, and the width of the narrowest part of the displacement groove 702 is smaller than the width of the support column 703, which can effectively reduce the falling speed of the support column 703 and prevent the support column 703 from breaking when falling.

[0041] Figure 8-9The marking block 8 includes an elastic shell 801, and a plurality of support rods 802 are filled in the elastic shell 801. The plurality of support rods 802 are overlapped with each other to form a three-dimensional spatial structure. The three-dimensional spatial structure formed by the support rods 802 is used to buffer the fall of the support column 703, thereby reducing the falling speed of the support column 703. The support rods 802 are hollow structures, and the inner walls of the support rods 802 are coated with a coating that is affinity with the marking liquid, thereby further increasing the buffering effect of the marking block 8. At the same time, the marking liquid has a certain lubricating effect, thereby reducing the impact caused by the breakage of the support rods 802.

[0042] See also Fig.10 The penetration rod 9 includes a rod body 901, and a hard block 902 is mixed in the rod body 901. The penetration rod 9 is made of a high-porosity material, and the hard block 902 is made of a high-strength material. After the prefabricated shear plate 2 is excessively deformed and squeezes the rod body 901, it is not easy to compact the rod body 901, leaving a flow channel for the marking liquid.

[0043] Compared with the first embodiment, this embodiment actually improves part of the structure of the first embodiment so that it can achieve better practical effects. At the same time, its production cost also increases accordingly. Technical personnel in this field can reasonably select various components according to actual needs.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A shear wall structure of an assembled building, characterized in that: The invention comprises a cast-in-place foundation (1) and a prefabricated shear plate (2) whose positions match each other, and the prefabricated shear plate (2) is located at the upper end of the cast-in-place foundation (1), the cast-in-place foundation (1) comprises a base (101), the upper end of the base (101) is fixedly connected to a plurality of connecting steel bars (102), one end of the prefabricated shear plate (2) close to the cast-in-place foundation (1) is provided with a plurality of casting cavities (3) whose positions match the connecting steel bars (102), a pair of casting channels (4) are respectively formed on the side walls of the plurality of casting cavities (3), and the two casting channels (4) are both connected to the casting cavities (3) and the outside, a connecting channel (5) is formed in the prefabricated shear plate (2), and the connecting channel (5) is connected to the connected casting cavities (3), a connecting steel sleeve (6) is fixedly connected in the casting cavity (3), and a gap exists between the connecting steel sleeve (6) and the connecting steel bar (102); The connecting steel sleeve (6) comprises a steel sleeve body (601), a casting port (602) matching the casting cavity (3) is formed on the steel sleeve body (601), a displacement detection ring (7) is sleeved on the outer side of the steel sleeve body (601), the displacement detection ring (7) comprises a ring body (701), a pair of movable notches are formed on the side wall of the ring body (701), a plurality of displacement grooves (702) are formed at the lower ends of the two movable notches, the depths of the plurality of displacement grooves (702) are different, and the movable notches are A plurality of support columns (703) matching the positions of the displacement grooves (702) are fixedly connected to the upper end, and the distance between the bottom ends of the plurality of support columns (703) and the bottom ends of the corresponding displacement grooves (702) increases as the length of the support columns (703) increases. A marking block (8) is fixedly connected to the bottom end of the displacement groove (702), and the marking block (8) is filled with a marking liquid. A plurality of marking channels matching the positions of the casting channels (4) are excavated on the prefabricated shear plate (2), and a matching penetration rod (9) is inserted into the marking channel.

2. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The sizes of the plurality of support columns (703) correspond to each other, and the sizes of the plurality of displacement grooves (702) also correspond to each other, and the support columns (703) and displacement grooves (702) with corresponding sizes are symmetrical about the axis center of the ring body (701).

3. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The outer wall of the ring body (701) is provided with a plurality of pulp flow channels (704) respectively matching the plurality of displacement grooves (702), and the pulp flow channels (704) connect the displacement grooves (702) and the bottom of the ring body (701).

4. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The marking liquid is mixed with a gas with a pungent odor, and the pungent odor gas is selected from volatile gases that are non-toxic to the human body.

5. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The marking liquids filled in the plurality of marking blocks (8) have different colors, and the marking liquid filled in the marking block (8) in the deepest displacement groove (702) is mixed with an oxidative color-changing pigment.

6. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The displacement groove (702) is wide at the top and narrow at the bottom, and the width of the displacement groove (702) at its narrowest point is smaller than the width of the support column (703).

7. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The marking block (8) comprises an elastic shell (801), a plurality of support rods (802) are filled in the elastic shell (801), and the plurality of support rods (802) are overlapped with each other to form a three-dimensional structure.

8. The shear wall structure of a prefabricated building according to claim 7, characterized in that: The support rod (802) is a hollow structure, and the inner wall of the support rod (802) is coated with a coating that is affinity with the marking liquid.

9. The shear wall structure of a prefabricated building according to claim 1, characterized in that: The penetration rod (9) comprises a rod body (901), wherein the rod body (901) is mixed with a hard block (902), the penetration rod (9) is made of a high-porosity material, and the hard block (902) is made of a high-strength material.

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