Opposite-pulling type bolt concrete frame module connecting joint and construction method thereof

Abstract

The invention relates to the technical field of modular buildings, in particular to an opposite-pulling type bolt concrete frame module connecting joint and a construction method thereof.The opposite-pulling type bolt concrete frame module connecting joint comprises prefabricated columns, long opposite-pulling assemblies, prefabricated beams, short opposite-pulling assemblies and viscous damping rods; the prefabricated concrete frame modules are mutually fixed to form an embedded connection relation, the long opposite-pull assemblies are arranged between the prefabricated columns in a penetrating mode, the long opposite-pull assemblies further fix the connected prefabricated columns, the two sets of prefabricated beams are arranged in an overlapped mode, the short opposite-pull assemblies fix the overlapped prefabricated beams, and the long opposite-pull assemblies are connected with the short opposite-pull assemblies. The precast beams fixed through the short opposite-pull assemblies are installed on the side edges of the precast concrete frame modules, the viscous damping rods are arranged on the side edges of the precast concrete frame modules, one ends of the double columns and the double beams at the splicing positions are embedded into the adjacent side modules, the concrete frame modules are connected into a whole, and the strength of combination of the double columns and the double beams is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of modular buildings, and particularly relates to a tie bolt concrete frame module connection node and a construction method thereof. Background Art

[0002] In prefabricated frame structures, the core of modular buildings lies in prefabricating each module unit in the factory first. These units have their own complete building functions, such as kitchens, bathrooms, stairs, and balconies, and then transporting them to the construction site for foundation construction and unit splicing. As an advanced form of prefabricated buildings, modular buildings have many advantages, and the force transfer scheme between modules is the key to the lateral resistance of the structure.

[0003] Modular buildings use factory prefabricated module units for on-site assembly, which can improve productivity, ensure accuracy and quality, and is an important development trend in the modern construction field. The connection of double columns and double beams between modules is the key to the seismic performance of the entire module structure. Most of the existing prefabricated frames are designed and studied for beam-column joints, and the research on the concrete modular building structure system is not comprehensive enough. Currently, most modular buildings use wet connections, which have problems such as complex structures, difficult construction operations, and high costs. Therefore, a tie bolt concrete frame module connection node and a construction method thereof are proposed. Summary of the Invention

[0004] In order to solve the above technical problems existing in the prior art, the present invention provides a tie bolt concrete frame module connection node and a construction method thereof.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A tie bolt concrete frame module connection node includes a precast column, a long tie component, a precast beam, a short tie component, and a viscous damping rod. The precast columns are stacked to form a precast concrete frame module, and the precast concrete frame modules are fixedly connected to form an embedded connection relationship;

[0006] The long tie component is inserted between the precast columns, and the long tie component further fixes the connected precast columns;

[0007] Two groups of the precast beams are overlapped, and the short tie component fixes the overlapped precast beams. The precast beams fixed by the short tie component are installed on the side of the precast concrete frame module;

[0008] The viscous damping rods are arranged on the side of the precast concrete frame module. Two groups of symmetrically arranged viscous damping rods are arranged on one side of the precast concrete frame module, and the ends of the viscous damping rods are all connected to the precast beams.

[0009] Preferably, the precast concrete frame module is composed of four groups of the precast columns stacked layer by layer. The precast column includes a precast column main body, a connection groove and a connection convex block. Connection grooves are formed at the top and the side of the precast column main body, and a connection convex block is arranged inside the connection groove located at the top or the side of the precast column main body.

[0010] Preferably, the connection grooves and the connection convex blocks have the same specifications. The connection grooves are nested into the connection convex blocks, and two adjacent precast column main bodies are nested and connected through the connection convex blocks and the connection grooves.

[0011] Preferably, connection convex blocks for arranging the long tension tie assembly are formed on the outer wall surface of the precast column main body. A plurality of groups of tooth-shaped reserved holes penetrating through the precast column main body are vertically formed in the precast column main body. The connection convex blocks on two adjacent precast column main bodies cooperate with the tooth-shaped reserved holes to form a setting position, and the long tension tie assembly is arranged in the setting position.

[0012] Preferably, the long tension tie assembly includes a long tension tie screw, a long steel plate and a first fixing nut. The number of the long tension tie screws is the same as that of the tooth-shaped reserved holes. The long tension tie screws are inserted into the tooth-shaped reserved holes. The long steel plate is arranged inside the connection convex block. A connection hole matching with the long tension tie screw is formed inside the long steel plate. The long tension tie screws penetrate through the connection holes inside the long steel plate, and the first fixing nuts are connected to the ends of the long tension tie screws.

[0013] Preferably, the precast beam includes a connection channel steel and a steel plate groove. The connection channel steel and the steel plate groove are formed on the end surface of the connection channel steel. Two groups of the connection channel steels are arranged back to back. Tooth-shaped through holes are formed inside the connection channel steels. Two groups of the connection channel steels arranged back to back are fixed under the limitation of the short tension tie assembly.

[0014] Preferably, the short tension tie assembly includes a short steel plate, a short tension tie screw and a second fixing nut. The short steel plate is arranged inside the steel plate groove. A through hole matching with the steel plate groove is formed inside the short steel plate. The short tension tie screw penetrates through the short steel plate and the tooth-shaped through holes inside the connection channel steel at the same time. The second fixing nut is threadedly connected to the end of the short tension tie screw. The short tension tie screw and the second fixing nut cooperate to fix two groups of the connection channel steels.

[0015] Preferably, the ends of two groups of the connection channel steels fixed as above are welded and connected to the long steel plate, and the connection channel steel forms a fixed connection relationship with the precast column main body through the welded connection with the long steel plate.

[0016] Preferably, the other end of the viscous damping rod is connected to the steel plate groove, and the displacements of the connection channel steel and the steel plate groove are transmitted to the viscous damping rod.

[0017] The construction method of the connection node of the tension tie bolt concrete frame module includes the following steps:

[0018] Step S1, insert a connecting convex block into the connecting groove on the side of a group of precast column bodies and fix the connecting convex block in the connecting groove.

[0019] Step S2, connect the connecting groove on the side of another group of precast column bodies with the connecting convex block. At this time, the two groups of precast column bodies are fixed to form a fixed group of precast column bodies.

[0020] Step S3, then connect the ends of the two fixed groups of precast column bodies through the cooperation of the connecting convex block and the connecting groove.

[0021] Step S4, the long tension bolt passes through the connecting holes inside the precast column body and the long steel plate. The first fixing nut is connected to the end of the long tension bolt. The first fixing nut plays a role in pressing and pushing the long steel plate by being threadedly connected with the long tension bolt, so as to further ensure the stability of the pressed state of the two groups of precast column bodies under the pressing of the long steel plate. At the same time, since the long steel plate covers the two groups of precast column bodies stacked up and down at the same time, the two groups of precast column bodies stacked up and down form a synchronous whole under the clamping of the long steel plate.

[0022] Step S5, arrange the short steel plate in the steel plate groove, pass the short tension bolt through the toothed through holes in the short steel plate and the connecting channel steel at the same time, and threadedly connect the second fixing nut to the end of the short tension bolt. The short tension bolt and the second fixing nut cooperate to fix the two groups of connecting channel steels.

[0023] Step S6, connect one end of the viscous damping rod to the long steel plate and the other end of the viscous damping rod to the steel plate groove.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The present invention is provided with precast columns and a long tension assembly. The long tension bolt passes through the connecting holes inside the precast column body and the long steel plate. The first fixing nut is connected to the end of the long tension bolt. The first fixing nut plays a role in pressing and pushing the long steel plate by being threadedly connected with the long tension bolt, so as to further ensure the stability of the pressed state of the two groups of precast column bodies under the pressing of the long steel plate.

[0026] At the same time, since the long steel plate covers the two groups of precast column bodies stacked up and down at the same time, the two groups of precast column bodies stacked up and down form a synchronous whole under the clamping of the long steel plate. By embedding one end of the double columns and double beams at the splicing joint into the adjacent module, the concrete frame modules are connected to form a whole, improving the strength of the combination of the double columns and double beams.

[0027] 2. A viscous damping rod is provided in the present invention. The deformation condition of the connecting groove steel structure is judged by the displacement of the viscous damping rod. At the same time, by forming a detachable and replaceable viscous damping rod, the displacement magnification ratio can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0029] Figure 2 is a three-dimensional unfolded structure schematic diagram of the present invention;

[0030] Figure 3 is a three-dimensional structure schematic diagram of the precast column of the present invention;

[0031] Figure 4 is a three-dimensional structure schematic diagram of the long tension component of the present invention;

[0032] Figure 5 is a three-dimensional unfolded structure schematic diagram of the precast beam and short tension component of the present invention;

[0033] Figure 6 is a three-dimensional structure schematic diagram of the viscous damping rod of the present invention.

[0034] The numbers in the figure represent:

[0035] 1. Precast column; 11. Precast column main body; 12. Connecting groove; 13. Connecting convex block; 2. Long tension component; 21. Long steel plate; 22. Long tension screw; 23. First fixing nut; 3. Precast beam; 31. Connecting channel steel; 32. Steel plate groove; 4. Short tension component; 41. Short steel plate; 42. Short tension screw; 43. Second fixing nut; 5. Viscous damping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following further elaborates the present invention in combination with the drawings and embodiments on the above and other technical features and advantages of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them.

[0037] Embodiment:

[0038] As Figure 1-6 shown, the present invention provides a bolted concrete frame module connection node in a tension manner, including a precast column 1, a long tension component 2, a precast beam 3, a short tension component 4 and a viscous damping rod 5. The precast columns 1 are stacked to form a precast concrete frame module, and the precast concrete frame modules are fixedly connected to form an embedded connection relationship;

[0039] The long tension component 2 is inserted between the precast columns 1, and the long tension component 2 further fixes the connected precast columns 1;

[0040] Two groups of precast beams 3 are overlapped, and the short tie component 4 fixes the overlapped precast beams 3. The precast beams 3 fixed by the short tie component 4 are arranged on the side of the precast concrete frame module;

[0041] The viscous damping rods 5 are arranged on the side of the precast concrete frame module. Two groups of symmetrically arranged viscous damping rods 5 are arranged on one side of the precast concrete frame module, and the ends of the two groups of viscous damping rods 5 are both connected to the precast beam 3.

[0042] The precast concrete frame module is composed of four groups of precast columns 1 stacked in layers. The precast column 1 includes a precast column main body 11, a connecting groove 12 and a connecting convex block 13;

[0043] Connecting grooves 12 are opened at the top and side of the precast column main body 11. Connecting convex blocks 13 are arranged inside the connecting grooves 12 located at the top or side of the precast column main body 11. The connecting grooves 12 and the connecting convex blocks 13 have the same specifications. The connecting grooves 12 can be nested into the connecting convex blocks 13. Two adjacent precast column main bodies 11 are nested and connected through the connecting convex blocks 13 and the connecting grooves 12. When assembling the precast concrete frame module, insert the connecting convex block 13 into the connecting groove 12 on the side of a group of precast column main bodies 11 and fix the connecting convex block 13 in the connecting groove 12, and then connect the connecting groove 12 on the side of another group of precast column main bodies 11 with the connecting convex block 13. At this time, the two groups of precast column main bodies 11 are fixed to form a fixed group of precast column main bodies 11, and then connect the ends of the two fixed groups of precast column main bodies 11 through the connecting convex blocks 13. At this time, the assembly of the precast concrete frame module is completed.

[0044] It is characterized in that connecting convex blocks 13 for arranging the long tie component 2 are opened on the outer wall surface of the precast column main body 11, and a number of groups of tooth-shaped reserved holes penetrating the precast column main body 11 are vertically opened inside. The connecting convex blocks 13 on two adjacent precast column main bodies 11 cooperate with the tooth-shaped reserved holes to form a setting position, and the long tie component 2 is arranged in the setting position. The long tie component 2 includes a long tie screw 21, a long steel plate 22 and a first fixing nut 23;

[0045] The number of the long tension tie rods 21 is the same as that of the tooth-shaped reserved holes. The long tension tie rods 21 are inserted into the tooth-shaped reserved holes. The long steel plates 22 are arranged inside the connecting bumps 13. Connecting holes matching with the long tension tie rods 21 are formed inside the long steel plates 22. The long tension tie rods 21 pass through the connecting holes inside the precast column main bodies 11 and the long steel plates 22. The first fixing nuts 23 are connected to the ends of the long tension tie rods 21. The first fixing nuts 23 play a role of pressing and pushing the long steel plates 22 by being threadedly connected with the long tension tie rods 21, so as to further ensure the stability of the pressing state of the two groups of precast column main bodies 11 under the pressing of the long steel plates 22. At the same time, since the long steel plates 22 cover the two groups of precast column main bodies 11 stacked up and down at the same time, the two groups of precast column main bodies 11 stacked up and down form a synchronous whole under the clamping of the long steel plates 22.

[0046] The precast beam 3 includes connecting channel steels 31 and steel plate grooves 32. The steel plate grooves 32 are formed on the end surfaces of the connecting channel steels 31. Two groups of connecting channel steels 31 are arranged back to back. Tooth-shaped through holes are formed inside the connecting channel steels 31. The two groups of connecting channel steels 31 arranged back to back are fixed under the limitation of the short tension tie assembly 4. The two groups of connecting channel steels 31 are used for lateral connection with the precast column main bodies 11.

[0047] The short tension tie assembly 4 includes short steel plates 41, short tension tie rods 42 and second fixing nuts 43. The short steel plates 41 are arranged inside the steel plate grooves 32. Through holes matching with the steel plate grooves 32 are formed inside the short steel plates 41. The short tension tie rods 42 pass through the short steel plates 41 and the tooth-shaped through holes inside the connecting channel steels 31 at the same time. The second fixing nuts 43 are threadedly connected to the ends of the short tension tie rods 42. The short tension tie rods 42 cooperate with the second fixing nuts 43 to fix the two groups of connecting channel steels 31. Under the fixing action of the short tension tie assembly 4, the two groups of connecting channel steels 31 can be stressed as a whole, and can also be deformed to a certain extent independently, so as to maintain the anti-tensile performance of the overall structure while maintaining the structural strength in the connected state.

[0048] The other end of the viscous damping rod 5 is connected to the steel plate groove 32. The displacements of the connecting channel steels 31 and the steel plate grooves 32 are transmitted to the viscous damping rod 5. By setting the viscous damping rod 5, the deformation of the connecting channel steels 31 can be further amplified. The structural deformation of the connecting channel steels 31 is judged through the displacement of the viscous damping rod 5. At the same time, by forming a detachable and replaceable viscous damping rod 5, the displacement amplification ratio can be flexibly adjusted.

[0049] During use, insert the connecting bump 13 into the connecting groove 12 on the side of a group of precast column main bodies 11 and fix the connecting bump 13 in the connecting groove 12;

[0050] Connect the connecting groove 12 on the side of the other group of precast column main bodies 11 with the connecting bump 13. At this time, the two groups of precast column main bodies 11 are fixed to form a fixed group of precast column main bodies 11;

[0051] Then, the fixed group ends of the two precast column bodies 11 are connected through the cooperation of the connecting bumps 13 and the connecting grooves 12;

[0052] The long tension bolts 21 pass through the connecting holes inside the precast column bodies 11 and the long steel plates 22. The first fixing nuts 23 are connected to the ends of the long tension bolts 21. The first fixing nuts 23, by being threadedly connected to the long tension bolts 21, play a role of pressing and pushing the long steel plates 22, so that the two groups of precast column bodies 11 are further ensured to be in a stable pressing state under the pressing of the long steel plates 22. At the same time, since the long steel plates 22 cover the two groups of precast column bodies 11 stacked up and down, the two groups of precast column bodies 11 stacked up and down form a synchronous whole under the clamping of the long steel plates 22;

[0053] The short steel plates 41 are arranged in the steel plate grooves 32. The short tension bolts 42 pass through the short steel plates 41 and the toothed through holes in the connecting channel steels 31 at the same time. The second fixing nuts 43 are threadedly connected to the ends of the short tension bolts 42. The short tension bolts 42 and the second fixing nuts 43 cooperate to fix the two groups of connecting channel steels 31;

[0054] One end of the viscous damping rod 5 is connected to the long steel plate 22, and the other end of the viscous damping rod 5 is connected to the steel plate groove 32.

[0055] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A tension bolt concrete frame module connection node, characterized in that: It includes prefabricated columns, long tension components, prefabricated beams, short tension components and viscous damping rods, wherein the prefabricated columns are stacked to form prefabricated concrete frame modules, and the prefabricated concrete frame modules are fixed to each other to form an embedded connection relationship; The long tensioning components are interspersed between the prefabricated columns, and the long tensioning components further fix the connected prefabricated columns; The two groups of precast beams are arranged overlappingly, the short tensioning components fix the overlapping precast beams, and the precast beams fixed by the short tensioning components are installed on the sides of the precast concrete frame modules; The viscous damping rods are arranged on the side of the precast concrete frame module. Two groups of symmetrically arranged viscous damping rods are arranged on one side of the precast concrete frame module. The ends of the viscous damping rods are connected to the precast beams.

2. A tension bolt concrete frame module connection node as claimed in claim 1, characterized in that: The precast concrete frame module is composed of four groups of precast columns stacked in layers, wherein the precast columns include a precast column body, a connecting groove and a connecting protrusion. The top and side of the precast column body are provided with a connecting groove, and a connecting protrusion is arranged inside the connecting groove located at the top of the precast column body or the side of the precast column body.

3. A tension bolt concrete frame module connection node as claimed in claim 2, characterized in that: The connection groove and the connection protrusion have the same specifications, and the connection groove is nested in the connection protrusion. Two groups of adjacent prefabricated column bodies are connected by the connection protrusion and the connection groove being nested.

4. A tension bolt concrete frame module connection node as claimed in claim 2, characterized in that: The outer wall surface of the prefabricated column body is provided with a connecting protrusion for setting a long tensioning component, and a plurality of groups of tooth-shaped reserved holes penetrating the prefabricated column body are vertically opened in the prefabricated column body. The connecting protrusions on two adjacent groups of prefabricated column bodies cooperate with the tooth-shaped reserved holes to form a setting position, and the long tensioning component is set in the setting position.

5. A tension bolt concrete frame module connection node as claimed in claim 4, characterized in that: The long tension assembly includes a long tension screw, a long steel plate and a first fixing nut. The number of the long tension screws is consistent with the number of the tooth-shaped reserved holes. The long tension screw is inserted into the tooth-shaped reserved holes. The long steel plate is arranged inside the connecting protrusion. A connecting hole matching the long tension screw is opened inside the long steel plate. The long tension screw passes through the connecting hole inside the long steel plate. The first fixing nut is connected to the end of the long tension screw.

6. A tension bolt concrete frame module connection node as claimed in claim 5, characterized in that: The prefabricated beam includes a connecting channel steel and a steel plate groove. The connecting channel steel and the steel plate groove are opened on the end surface of the connecting channel steel. Two groups of the connecting channel steels are arranged back to back. Tooth-shaped through holes are opened in the connecting channel steels. The two groups of connecting channel steels arranged back to back are fixed under the restriction of the short tension assembly.

7. A tension bolt concrete frame module connection node as claimed in claim 5, characterized in that: The short tension assembly includes a short steel plate, a short tension screw and a second fixing nut. The short steel plate is arranged in a steel plate groove. A through hole matching the steel plate groove is opened in the short steel plate. The short tension screw passes through the toothed through holes in the short steel plate and the connecting channel steel at the same time. The second fixing nut is threadedly connected to the end of the short tension screw. The short tension screw and the second fixing nut cooperate to fix the two sets of connecting channel steels.

8. A tension bolt concrete frame module connection node as claimed in claim 7, characterized in that: The ends of the two fixed connection channel steels are connected to the long steel plates by welding, and the connection channel steels are connected to the prefabricated column body by welding to the long steel plates.

9. A tension bolt concrete frame module connection node as claimed in claim 1 or 8, characterized in that: The other end of the viscous damping rod is connected to the steel plate groove, and the displacement of the connecting channel steel and the steel plate groove is transmitted to the viscous damping rod.

10. A construction method for the tension bolt concrete frame module connection node according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, inserting a connection protrusion into a connection groove on the side of a group of prefabricated column bodies and fixing the connection protrusion in the connection groove; Step S2, connecting the connecting grooves on the sides of another group of prefabricated column bodies to the connecting protrusions, and at this time, the two groups of prefabricated column bodies are fixed to form a fixed group of prefabricated column bodies; Step S3, connecting the ends of the fixed groups of the two prefabricated column bodies by means of the matching of the connecting protrusions and the connecting grooves; Step S4, the long tension screw passes through the connection holes inside the prefabricated column body and the long steel plate, the first fixing nut is connected to the end of the long tension screw, and the first fixing nut plays a role in pressing and pushing the long steel plate by being threadedly connected with the long tension screw, so that the two groups of prefabricated column bodies are further guaranteed to be stable in the pressing state under the pressing of the long steel plate, and at the same time, because the long steel plate covers the two groups of prefabricated column bodies stacked up and down at the same time, the two groups of prefabricated column bodies stacked up and down form a synchronous whole under the clamping of the long steel plate; Step S5, placing the short steel plate in the steel plate groove, passing the short tension screw through the toothed through holes in the short steel plate and the connecting channel steel at the same time, threading the second fixing nut on the end of the short tension screw, and the short tension screw and the second fixing nut cooperate to fix the two sets of connecting channel steels; Step S6, connecting one end of the viscous damping rod to the long steel plate, and connecting the other end of the viscous damping rod to the steel plate groove.

Images