Fabricated concrete frame
By using dry-type connecting column column nodes in prefabricated concrete frames, using prefabricated connectors and filled with material to wrap the node ends of prefabricated frame columns, the problems of long construction time and high cost caused by wet connections are solved, and more efficient and stable node connections are achieved.
Patent Information
- Application Number
- CN202421355320.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-14
AI Technical Summary
In prefabricated concrete frames, the wet connection between prefabricated columns leads to the release of prefabricated components, dense steel bars in the node area, and a lot of wet concrete operations on site, resulting in long construction time and high cost.
The prefabricated concrete frame adopts dry-type connections to the column column nodes, and the connecting parts are embedded at the node ends of the prefabricated frame columns, and the connecting parts are wrapped with filling materials to form a flush outer wall to achieve dry connection.
There is no need for temporary support structures, which reduces construction time and costs, improves construction efficiency, reduces environmental pollution, enhances the rigidity and stability of the node area, and avoids loosening and damage to the connecting structure.
Smart Images
Figure CN222909027U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of building components, and particularly to a precast concrete frame. Background Art
[0002] Under the background of the country's strong promotion of new building industrialization, the requirements for the degree of industrialization and prefabrication of precast building structure technology systems are constantly increasing.
[0003] In a precast concrete frame structure, frame columns are important load-bearing components and need to bear both vertical and horizontal loads simultaneously. The connection nodes between precast columns are more critical parts. At present, wet connections are mostly used for precast column assembly connections, including tenon joint connections, grout anchor joint connections, grouting sleeve connections, etc.
[0004] The use of wet connection methods has problems that are difficult to solve, such as the protruding reinforcement of precast components, the dense reinforcement in the node area, and a large amount of on-site wet concrete work. The amount of on-site work is large and the construction period is long. Therefore, there is an urgent need to propose a precast concrete frame with dry-connected column-column joints to overcome the above problems. Summary of the Utility Model
[0005] The purpose of the embodiments of this application is to provide a precast concrete frame to solve the problems that are difficult to solve with wet connection methods for column-column connection nodes, such as the protruding reinforcement of precast components, the dense reinforcement in the node area, and a large amount of on-site wet concrete work.
[0006] To solve the above technical problems, the embodiments of this application provide the following technical solutions:
[0007] This application provides a precast concrete frame, which includes: at least two precast frame columns extending longitudinally and respectively having node ends for splicing with each other;
[0008] At least two connecting pieces, the connecting pieces include: a first connecting part and a second connecting part. The first connecting part is embedded in the node end of one of the precast frame columns, and the second connecting part is used to be screwed and fixed with the second connecting part of the connecting piece embedded in the node end of the other precast frame column;
[0009] Wherein, there is a filling gap between the adjacent node ends of the at least two precast frame columns for injecting a filling material to wrap the second connecting part of the connecting piece, and the filling material forms an outer wall that is connected and flush with the outer wall of the precast frame column.
[0010] In some modified embodiments of the present application, the connecting member includes: a connecting plate, two first side plates oppositely arranged in a first direction, and two second side plates oppositely arranged in a second direction. The first side plates and the second side plates are respectively fixed and perpendicular to the connecting plate. The corresponding ends of the two first side plates and the two second side plates are fixedly connected and enclose a cubic space. The cubic space is located inside each edge of the connecting plate, and each edge of the connecting plate does not extend beyond the longitudinal plane where the outer wall of the corresponding precast frame column is located;
[0011] Wherein, the first connecting portion is composed of parts of the first side plates and the second side plates in the longitudinal direction, and the second connecting portion is composed of the connecting plate, and the remaining parts of the first side plates and the second side plates in the longitudinal direction;
[0012] Wherein, the first direction and the second direction are perpendicular to each other and are respectively perpendicular to the extending direction of the precast frame column.
[0013] In some modified embodiments of the present application, each of the two ends of each first side plate and each second side plate respectively has a first stiffening rib extending in the same direction as it. The first stiffening rib has the same height as the first side plate and the second side plate in the longitudinal direction and is fixed to the connecting plate.
[0014] In some modified embodiments of the present application, the first edge of the first stiffening rib facing away from the cubic space includes a first part, a first inclined part and a second part that are connected to each other in the longitudinal direction. The distance between the first part and the cubic space is less than the distance between the second part and the cubic space. The first part at least partially belongs to the first connecting portion. The second part is connected to the connecting plate and is flush with the corresponding edge of the connecting plate. The first inclined part connects the first part and the second part.
[0015] In some modified embodiments of the present application, at least one second stiffening rib is provided between the two first stiffening ribs on the same side. The second stiffening rib is fixed to the connecting plate, and the height of the second stiffening rib extending in the longitudinal direction is not higher than the first inclined part of the first stiffening rib.
[0016] In some modified embodiments of the present application, the second edge of the second stiffening rib facing away from the cubic space includes a second inclined part and a third part that are connected to each other in the longitudinal direction. The third part is connected to the connecting plate and is flush with the corresponding edge of the connecting plate. The second inclined part has the same inclination trend as the first inclined part.
[0017] In some modified embodiments of the present application, there is a gap between the end of the second inclined portion away from the connecting plate and the corresponding first side plate or second side plate, and there is a third edge parallel to the connecting plate.
[0018] In some modified embodiments of the present application, the interior of the precast frame column has a number of longitudinal steel bars, and the portions of the number of longitudinal steel bars close to the joint end have bent segments so that the ends of the number of longitudinal steel bars are fixedly connected to the first connecting portion of the connecting member.
[0019] In some modified embodiments of the present application, the number of longitudinal steel bars includes four first longitudinal bars, each first longitudinal bar is respectively located between two adjacent and mutually perpendicular first stiffening ribs, and the first longitudinal bars are respectively fixedly connected to the corresponding two first stiffening ribs;
[0020] The number of longitudinal steel bars includes at least four second longitudinal bars, and at least one of the fourth longitudinal bars is arranged between two first stiffening ribs on the same side, and the fourth longitudinal bar is fixedly connected to the surface of the corresponding first side plate or second side plate facing away from the cubic space.
[0021] In some modified embodiments of the present application, first connection holes are respectively arranged at the four corners of the connecting plate, and at least one second connection hole is respectively arranged on each side edge of the connecting plate and between the corresponding two first connection holes;
[0022] The corresponding first connection holes and the corresponding second connection holes of the two connecting members at the adjacent joint ends are respectively locked and fixed by threaded locking members.
[0023] Compared with the prior art, for the precast concrete frame provided by the present application, the joint area where two precast frame columns are spliced is screwed and locked by two connecting members, and the connecting members bear part of the load, so the force is more reasonable, and there is no need to set up a temporary support structure, which can reduce the construction time and cost; the joint area is a dry connection, without a large number of wet operations such as traditional formwork engineering and on-site concrete pouring, which can effectively improve the construction efficiency and is beneficial to energy conservation, emission reduction and environmental protection; after the connecting members in the joint area are screwed, the connection structure in the joint area can be wrapped by pouring filling materials to fill all the gaps, spaces and crevices in the joint area, so as to enhance the rigidity and stability of the joint area, avoid the loosening and damage of the connection structure in the joint area, and can also make the connection structure not exposed, so there is no need to carry out anti-corrosion and fire-proof treatments, which can reduce the construction cost and improve the aesthetics. Description of the Drawings
[0024] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present application will become readily understandable. In the drawings, several embodiments of the present application are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0025] Figure 1 Schematically shows the structural schematic diagram of the precast concrete frame provided by the embodiment of the present invention;
[0026] Figure 2 Schematically shows the structural schematic diagram of the precast concrete frame provided by the embodiment of the present invention from another angle;
[0027] Figure 3 Schematically shows Figure 2 the cross-sectional structural schematic diagram of the A-A section in
[0028] Figure 4 Schematically shows Figure 2 the cross-sectional structural schematic diagram of the B-B section in
[0029] Figure 5 Schematically shows the structural schematic diagram of the connector of the precast concrete frame provided by the embodiment of the present invention;
[0030] Figure 6 Schematically shows the structural schematic diagram of the connector of the precast concrete frame provided by the embodiment of the present invention from another angle;
[0031] Figure 7 Schematically shows Figure 6 the cross-sectional structural schematic diagram of the C-C section in
[0032] Figure 8 Schematically shows the structural schematic diagram of the fixed connection between the longitudinal reinforcement and the connector of the precast concrete frame provided by the embodiment of the present invention;
[0033] Figure 9 Schematically shows Figure 8 the cross-sectional structural schematic diagram of the D-D section in
[0034] Figure 10 Schematically shows the structural schematic diagram of the longitudinal reinforcement of the precast concrete frame provided by the embodiment of the present invention;
[0035] Explanation of the reference numerals in the drawings:
[0036] 1. Prefabricated frame column;
[0037] 2. Connector; 21. First connection part; 22. Second connection part; 201. Connection plate; 2011. First connection hole; 2012. Second connection hole; 202. First side plate; 203. Second side plate; 204. First stiffening rib; 205. Second stiffening rib;
[0038] 3. Longitudinal reinforcement; 31. First longitudinal bar; 32. Second longitudinal bar; 301. Bent section; 3011. First bent part; 3012. Second bent part; 3013. Inclined part; a. First included angle;
[0039] 4. Threaded locking part; 41. Bolt; 42. Nut; 43. Gasket;
[0040] x. First direction; y. Second direction. Detailed implementation mode
[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.
[0042] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this application belongs.
[0043] Embodiment
[0044] Referring to the attached Figure 1 and the attached Figure 2 , an embodiment of the present utility model provides a precast concrete frame, which includes: at least two precast frame columns 1 extending longitudinally and respectively having joint ends for splicing with each other; and at least two connectors 2, the connector 2 includes: a first connection part 21 and a second connection part 22, the first connection part 21 is embedded in the joint end of one of the precast frame columns 1, and the second connection part 22 is used for screwing and fixing with the second connection part 22 of the connector 2 embedded in the joint end of the other precast frame column 1; wherein, there is a filling gap between the adjacent joint ends of the at least two precast frame columns 1 for injecting a filling material to wrap the second connection part 22 of the connector 2, and the filling material forms an outer wall that is connected and flush with the outer wall of the precast frame column 1.
[0045] Specifically, the precast concrete frame structure provided in this embodiment includes at least two precast frame columns 1 that need to be spliced with each other. The precast frame column 1 can be a cubic column structure with a rectangular cross-section and extending longitudinally. The bottom end of the precast frame column 1 can be fixed at a preset position on the construction site, specifically, it can be fixed on the foundation or other precast frame columns 1. As a longitudinal load-bearing member, the precast frame column 1 can effectively transfer the weight of the building to the foundation; Attached Figure 2 、Attached Figure 4 Schematically shows the precast concrete parts in the precast frame column 11 and the precast frame beam 2.
[0046] In a precast concrete frame, the connection node between precast frame columns 1 is a very critical part. To solve the difficult problems such as the protruding reinforcement of precast components, the dense steel bars in the node area, and the large amount of on-site concrete wet operation existing in the wet connection method for the connection nodes between precast frame columns 1, in the technical solution adopted by the present utility model, taking the number of precast frame columns 1 as two as an example, the ends of the two precast frame columns 1 that are spliced with each other are node ends, and the two node ends are connected by two connecting pieces 2. The connecting piece 2 specifically includes a first connecting portion 21 and a second connecting portion 22, and the two can be integrally formed. The first connecting portion 21 is embedded in the node end of the precast frame column 1 as the fixed part with the precast frame column 1, and the second connecting portion 22 is exposed at the node end of the precast frame column 1 as the connecting part with another precast frame column 1. The second connecting portion 22 is screwed and fixed with the second connecting portion 22 of the connecting piece 2 at the node end of another precast frame column 1, so as to realize the dry connection of the node area where the two precast frame columns 1 are spliced, without temporary support, saving construction time and cost.
[0047] Specifically, there is a filling gap between the node ends of the two precast frame columns 1 after screwing. By filling the filling gap with a grouting material, the filling material can fill all the gaps, spaces and crevices in the node area to enhance the rigidity and stability of the node area and avoid the loosening and damage of the connection structure in the node area; and the filling material can wrap the second connecting portion 22 exposed outside the connecting piece 2 and the screwed parts, so that the connection structure in the node area is not exposed. The filling material has good corrosion resistance and oxidation resistance, so there is no need for anti-corrosion and fire protection treatment, further reducing the construction cost; the outer wall of the grouting material after forming is connected and flush with the outer wall of the precast frame column 1, so that the connecting piece 2 does not protrude or recess from the outer wall of the precast frame column 1, and an integral and continuous appearance can be formed, which can improve the aesthetics of the precast concrete frame.
[0048] Among them, the connecting member 2 can be a steel structure member to endow it with sufficient strength and stiffness. The connecting member 2 is arranged by embedding the first connecting portion 21 at the joint end of the precast frame column 1. When splicing columns on the construction site, there is no need to install the connecting member, which improves the construction efficiency, ensures the position accuracy of the connecting member 2 and high connection quality, and is also beneficial to enhancing the structural stability and load-bearing capacity.
[0049] During the construction of the above-mentioned precast concrete frame structure, first lift the upper precast frame column 1, align the connecting member 2 at the lower joint end of the upper precast frame column 1 with the connecting member 2 at the upper joint end of the lower precast frame column 1, lower the upper precast frame column 1 to the docking position, and screw-fix the second connecting portions 22 of the two connecting members 2. Finally, pour the filling material into the filling gap between the joint ends of the two precast frame columns 1 to complete the construction.
[0050] According to the above, the embodiment of the present invention provides a precast concrete frame. The joint area where two precast frame columns 1 are spliced is screwed and locked by two connecting members 2. The connecting members 2 bear part of the load, and the force is more reasonable. There is no need to set up a temporary support structure, which can reduce the construction time and cost. The joint area is a dry connection, without a large number of wet operations such as traditional formwork engineering and on-site concrete pouring, which can effectively improve the construction efficiency and is beneficial to energy conservation, emission reduction and environmental protection. After the connecting members 2 in the joint area are screwed, the connection structure in the joint area can be wrapped by pouring the filling material to fill all the gaps, spaces and crevices in the joint area, so as to enhance the rigidity and stability of the joint area, avoid the loosening and damage of the connection structure in the joint area, and also make the connection structure not exposed, so there is no need to carry out anti-corrosion and fire-proof treatment, which can reduce the construction cost and improve the aesthetics.
[0051] Further, refer to the appendix Figure 1 - Appendix Figure 7, in a specific implementation, the connecting member 2 includes: a connecting plate 201, two first side plates 201 oppositely arranged along the first direction x, and two second side plates 203 oppositely arranged along the second direction y. The first side plates 201 and the second side plates 203 are respectively fixed and perpendicular to the connecting plate 201. The corresponding end parts of the two first side plates 201 and the two second side plates 203 are fixedly connected and enclose a cubic space. The cubic space is located inside each edge of the connecting plate 201, and each edge of the connecting plate 201 does not exceed the longitudinal plane where the outer wall of the corresponding precast frame column 1 is located. Among them, the first connecting portion 21 is composed of a part of the first side plate 201 and the second side plate 203 in the longitudinal direction, and the second connecting portion 22 is composed of the connecting plate 201 and the remaining parts of the first side plate 201 and the second side plate 203 in the longitudinal direction. Among them, the first direction x and the second direction y are perpendicular to each other and are respectively perpendicular to the extending direction of the precast frame column 1.
[0052] Specifically, in order to improve the self-strength and connection strength of the connecting member 2, in the technical solution adopted by the present utility model, the connecting member 2 can be set as a box-shaped structure, specifically including: a connecting plate 201, two first side plates 201 and two second side plates 203. The area of the connecting plate 201 is not greater than the cross-sectional area of the precast frame column 1. The two first side plates 201 and the two second side plates 203 are respectively fixed on the surface of the connecting plate 201, and specifically can be welded to the surface of the connecting plate 201. The two first side plates 201 are oppositely arranged in the first direction x, and the two second side plates 203 are oppositely arranged in the second direction y. Here, the first direction x and the second direction y are perpendicular to each other and are respectively perpendicular to the extending direction of the precast frame column 1, that is, perpendicular to the longitudinal direction respectively. The two first side plates 201 are located between the two second side plates 203, and the corresponding end parts of the first side plates 201 and the second side plates 203 are respectively fixedly connected to enclose a cubic space. The parts of the first side plates 201 and the second side plates 203 in the longitudinal direction belong to the first connecting portion 21 and are embedded in the precast frame column 1, enabling the connecting member 2 to have a sufficient area of close combination with the precast frame column 1, enhancing the bearing capacity and seismic performance of the structure. The remaining parts of the first side plates 201 and the second side plates 203 and the connecting plate 201 belong to the second connecting portion 22. During construction, the connecting plates 201 of the connecting members 2 of the two precast frame columns 1 are mutually attached to realize bolted fixation. Such a design can make the connecting member 2 have higher strength and stability, thereby improving the connection strength of the column-column connection node.
[0053] Among them, the length of the first side plate 201 extending in the second direction y and the length of the second side plate 203 extending in the first direction x can be the same, and are respectively less than the extending lengths of the sides of the connecting plate 201.
[0054] Further, referring to the attached Figure 5 - attached Figure 7 , in a specific implementation, first connection holes 2011 are respectively provided at the four corners of the connection plate 201, and at least one second connection hole 2012 is respectively provided on each side edge of the connection plate 201 and between the corresponding two first connection holes 2011; the corresponding first connection holes 2011 and the corresponding second connection holes 2012 of the two connection members 2 at adjacent node ends are respectively locked and fixed by a threaded locking member 4.
[0055] Specifically, in order to realize the screw connection and fixation of the connection plates 201 of adjacent connection members 2, in the technical solution adopted by the present utility model, first connection holes 2011 are respectively provided at the four corners of the connection plate 201, and at least one second connection hole 2012 is provided in the part of the four edges of the connection plate 201 between the first connection holes 2011 at both ends. When one second connection hole 2012 is arranged on each side of the connection plate 201, this second connection hole 2012 is located at the middle position of the side edge of the connection plate 201 in its extending direction, and when two or more second connection holes 2012 are provided, they are arranged in an equally spaced and uniformly distributed manner; the corresponding first connection holes 2011 and the corresponding second connection holes 2012 on the connection plates 201 of the two connection members 2 at adjacent node ends are respectively locked and fixed by a threaded locking member 4. The connection strength of the two connection members 2 can be reliably improved through multi-point screw connection and locking.
[0056] Among them, referring to the attached Figure 1 and attached Figure 2 , the threaded locking member 4 may include: a bolt 41, a nut 42 and a gasket 43. After the connection plates 201 of the two connection members 2 in the node area are accurately butted, a bolt 41 is installed in the corresponding first connection hole 2011 and the corresponding second connection hole 2012. Preferably, a high-strength bolt 41 can be used, and a gasket 43 and a nut 42 are sequentially installed from the rod part of the bolt 41, and the nut 42 is locked, so as to realize the screw connection and fixation of the connection member 2; the diameters of the first connection hole 2011 and the second connection hole 2012 may be the same and may be larger than the diameter of the rod part of the bolt 41. Specifically, it can be set as: the diameters of the first connection hole 2011 and the second connection hole 2012 are 4 mm larger than the diameter of the rod part of the bolt 41, but not limited thereto.
[0057] Further, referring to the attached Figure 1 - attached Figure 7 , in a specific implementation, two end parts of each first side plate 201 and each second side plate 203 respectively have first stiffening ribs 204 extending in the same direction as them. The first stiffening ribs 204 have the same height as the first side plate 201 and the second side plate 203 in the longitudinal direction and are fixed to the connection plate 201.
[0058] Specifically, in order to further enhance the strength of the connecting member 2, in the technical solution adopted by the present utility model, a strengthening structure can be provided for the connecting member 2. Specifically: first stiffening ribs 204 are respectively provided at both ends of each first side plate 201 and each end of each second side plate 203. The first stiffening ribs 204 are flat plate-like structures, extending in the same direction as the corresponding first side plate 201 or second side plate 203 and fixedly connected thereto. Thus, "L"-shaped strengthening structures are respectively formed at the four corners of the connecting member 2, which can effectively reinforce the connecting member 2 to effectively resist external loads and deformations. The first stiffening ribs 204 extend the same height as the first side plate 201 and the second side plate 203 in the longitudinal direction. Their ends can be fixed to the connecting plate 201 by welding, and the sides can be fixed to the corresponding first side plate 201 and second side plate 203 by welding, and the first stiffening ribs 204 do not extend beyond the range where the connecting plate 201 is located.
[0059] Further, referring to the attached Figure 5 and the attached Figure 7 , the first edge of the first stiffening rib 204 facing away from the cubic space includes a first part, a first inclined part and a second part that are connected to each other in the longitudinal direction. The first part and the second part are respectively perpendicular to the connecting plate 201. The distance between the first part and the cubic space is less than the distance between the second part and the cubic space. The first part at least partially belongs to the first connecting portion 21. The second part is connected to the connecting plate 201 and is flush with the corresponding edge of the connecting plate 201. The first inclined part is an inclined edge to connect the first part and the second part, which can further improve its structural strength and bearing capacity, and can disperse the load of the connecting member 2, making the force more uniform and improving the stability of the structure.
[0060] Further, referring to the attached Figure 1 - the attached Figure 7 , in a specific implementation, at least one second stiffening rib 205 is provided between two of the first stiffening ribs 204 on the same side. The second stiffening rib 205 is fixed to the connecting plate 201, and the height of the second stiffening rib 205 extending in the longitudinal direction is not higher than the first inclined part 3013 of the first stiffening rib 204.
[0061] Specifically, in order to enhance the strength of the side part of the connecting member 2, in the technical solution adopted by the present utility model, at least one second stiffening rib 205 is respectively arranged on the sides of the first side plate 201 and the second side plate 203 facing away from the cubic space. The second stiffening rib 205 is located between two first stiffening ribs 204 on the same side. The second stiffening rib 205 can be set as a flat plate structure and is perpendicular to the connecting plate 201 and the corresponding first side plate 201 or second side plate 203, which can improve the stiffness of the connecting member 2 and can disperse the load of the "L" - shaped structure formed by the first side plate 201 or the second side plate 203 and the connecting plate 201, making the force more uniform and improving the stability of the structure; when one second stiffening rib 205 is arranged on each side, the second stiffening rib 205 is arranged at the mid - point position between two first stiffening ribs 204 on the same side. When two or more second stiffening ribs 205 are arranged on each side, they are arranged in an equally - spaced and evenly - distributed manner. The number of the second stiffening ribs 205 is set according to the size and force of the precast frame column 1, and can be specifically determined by calculation; the second stiffening rib 205 belongs to the second connecting part 22, that is, the height of the second stiffening rib 205 extending longitudinally is not higher than the first inclined part of the first stiffening rib 204.
[0062] Further, referring to the attached Figure 5 - attached Figure 7 , similar to the shape setting of the first stiffening rib 204, the second edge of the second stiffening rib 205 facing away from the cubic space includes a second inclined part and a third part that are connected to each other longitudinally. The third part is perpendicular to the connecting plate 201, is connected to the connecting plate 201 and is flush with the corresponding edge of the connecting plate 201. The inclination trend of the second inclined part is the same as that of the first inclined part, and the inclination angles can be the same or different. The setting of the second inclined part can further improve the strength of the second stiffening rib 205. In addition, there is a gap between the end of the second inclined part far from the connecting plate and the corresponding first side plate or second side plate, and there is a third edge parallel to the connecting plate, which can further improve the stability of the second stiffening rib 205.
[0063] Further, referring to the attached Figure 2 、attached Figure 4 and attached Figure 8 and attached Figure 9 , in a specific implementation, there are several longitudinal steel bars 3 inside the precast frame column 1. The part of the several longitudinal steel bars 3 close to the joint end has a bent section 301 so that the ends of the several longitudinal steel bars 3 are fixedly connected to the first connecting part 21 of the connecting member 2.
[0064] Specifically, longitudinal steel bars 3 are arranged inside the precast frame column 1 to improve the flexural bearing capacity of the precast frame column 1. In order to further improve the connection strength of the connector 2, in the technical solution adopted by the present utility model, the first connection part 21 of the connector 2 is welded and fixed to the longitudinal steel bars 3 inside the precast frame column 1. Since the longitudinal positions of the longitudinal steel bars 3 do not correspond to the first connection part 21, a bent section 301 can be formed at the part of the longitudinal steel bar 3 close to the joint end, so that the ends of several longitudinal steel bars 3 can be fixedly connected to the first connection part 21 of the connector 2. Here, the bent section 301 has a first bent part 3011 at the starting end, a second bent part 3012 at the terminating end, and an inclined part 3013 between the first bent part 3011 and the second bent part 3012, and the bent section 301 shows a retracting trend. The inclined part 3013 forms a first included angle a that is an acute angle with the longitudinal plane. As shown in the appendix Figure 10 shown, optimally, the size of the first included angle a can be set as follows: the ratio of the opposite side to the adjacent side of the first included angle a in a right triangle is not greater than, to ensure the strength and performance of the first longitudinal steel bar 31; the longitudinal steel bar 3 includes: a bent section 301 and straight extension parts on both sides of the first bent part 3011 and the second bent part 3012. The straight extension part close to the connector 2 is welded and fixed to the connector 2, and the welding length can be set to be not less than 6 times the diameter of the longitudinal steel bar 3 to improve the welding strength and reliability.
[0065] Specifically, referring to appendix Figure 2 , appendix Figure 4 and appendix Figure 8 and appendix Figure 9 , in the technical solution adopted by the present utility model, among several longitudinal steel bars 3, there are four first longitudinal steel bars 31 corresponding to the corners of the connector 2. Each first longitudinal steel bar 31 is respectively located between two adjacent and mutually perpendicular first stiffening ribs 204. As shown in appendix Figure 4 shown, the first longitudinal steel bars 31 are respectively welded and fixed to the corresponding two first stiffening ribs 204; among several longitudinal steel bars 3, there are also at least four second longitudinal steel bars 32 corresponding to the non-corner parts of the connector 2. At least one fourth longitudinal steel bar corresponds to each side of the connector 2, and the fourth longitudinal steel bar is welded and fixed to the surface of the corresponding first side plate 201 or the second side plate 203 that deviates from the cube space. As shown in appendix Figure 4 shown, a double-sided welding method can be adopted to improve the welding strength and reliability.
[0066] It should be noted that in the description of this specification, the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model; terms such as "connection", "installation", and "fixation" should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0067] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", and "specific embodiments" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0068] As described above, the above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims
1. An assembled concrete frame, characterized in that: include: At least two prefabricated frame columns extending in the longitudinal direction and respectively having node ends for mutual splicing; At least two connecting members, the connecting member comprising: a first connecting portion and a second connecting portion, the first connecting portion being pre-buried in a node end of one of the prefabricated frame columns, the second connecting portion being used for being screwed and fixed to the second connecting portion of the connecting member pre-buried in a node end of another prefabricated frame column; There is a filling gap between the adjacent node ends of the at least two prefabricated frame columns, which is used to inject filling material to wrap the second connecting portion of the connecting piece, and the outer wall formed by the filling material is connected and flush with the outer wall of the prefabricated frame column.
2. The assembled concrete frame according to claim 1, characterized in that: The connecting member comprises: a connecting plate, two first side plates arranged opposite to each other in a first direction, and two second side plates arranged opposite to each other in a second direction, the first side plates and the second side plates are respectively fixed and perpendicular to the connecting plate, the corresponding ends of the two first side plates and the two second side plates are fixedly connected and enclosed to form a cubic space, the cubic space is located on the inner side of each edge of the connecting plate, and each edge of the connecting plate does not exceed the longitudinal surface where the outer wall of the corresponding prefabricated frame column is located; Wherein, the first connecting portion is composed of the first side plate and the second side plate in the longitudinal direction, and the second connecting portion is composed of the connecting plate and the remaining parts of the first side plate and the second side plate in the longitudinal direction; The first direction and the second direction are perpendicular to each other and are respectively perpendicular to the extension direction of the prefabricated frame column.
3. The assembled concrete frame according to claim 2, characterized in that: Both ends of each of the first side plates and each of the second side plates are respectively provided with first stiffening ribs extending in the same direction therewith. The first stiffening ribs have the same height as the first side plates and the second side plates in the longitudinal direction and are fixed to the connecting plate.
4. The assembled concrete frame according to claim 3, characterized in that: The first stiffening rib, facing away from the first edge of the cubic space, includes a first part, a first inclined part and a second part which are connected to each other in the longitudinal direction, the distance between the first part and the cubic space is smaller than the distance between the second part and the cubic space, the first part at least partially belongs to the first connecting part, the second part is connected to the connecting plate and is flush with the corresponding edge of the connecting plate, and the first inclined part connects the first part and the second part.
5. The assembled concrete frame according to claim 4, characterized in that: At least one second stiffening rib is disposed between two of the first stiffening ribs on the same side. The second stiffening rib is fixed to the connecting plate, and a height of the second stiffening rib extending in the longitudinal direction is not higher than the first inclined portion of the first stiffening rib.
6. The assembled concrete frame according to claim 5, characterized in that: The second stiffening rib, away from the second edge of the cubic space, includes a second inclined portion and a third portion connected to each other in the longitudinal direction, the third portion is connected to the connecting plate and flush with the corresponding edge of the connecting plate, and the second inclined portion has the same inclination trend as the first inclined portion.
7. The assembled concrete frame according to claim 6, characterized in that: One end of the second inclined portion away from the connecting plate is spaced apart from the corresponding first side plate or the second side plate and has a third edge parallel to the connecting plate.
8. The assembled concrete frame according to claim 2, characterized in that: The prefabricated frame column has a plurality of longitudinal steel bars inside, and the portions of the plurality of longitudinal steel bars close to the node ends have bending sections so that the ends of the plurality of longitudinal steel bars are fixedly connected to the first connecting portion of the connecting member.
9. The assembled concrete frame according to claim 8, characterized in that: The plurality of longitudinal steel bars include four first longitudinal bars, each of which is located between two adjacent and mutually perpendicular first stiffening ribs, and the first longitudinal bars are fixedly connected to the corresponding two first stiffening ribs respectively; The plurality of longitudinal steel bars include at least four second longitudinal bars, at least one fourth longitudinal bar is arranged between two of the first stiffening ribs on the same side, and the fourth longitudinal bar is fixedly connected to the surface of the corresponding first side panel or the second side panel facing away from the cubic space.
10. The assembled concrete frame according to claim 2, characterized in that: The four corners of the connecting plate are respectively provided with first connecting holes, and each side edge of the connecting plate and located between two corresponding first connecting holes is respectively provided with at least one second connecting hole; The first connection holes and the second connection holes corresponding to the two connection members at the adjacent node ends are respectively locked and fixed by threaded locking members.