Mortise and tenon buckle type connection concrete filled steel tube shear wall

Abstract

The utility model belongs to the technical field of civil construction, and particularly relates to a tenon-and-mortise buckle type connection steel pipe concrete shear wall. The connecting structure comprises a main frame and an inner frame positioned in the main frame, and is characterized in that the inner frame comprises a vertical concrete filled steel tubular column and a transverse concrete filled steel tubular beam, and an assembly hole for the transverse concrete filled steel tubular beam to pass through is transversely formed in the vertical concrete filled steel tubular column in a penetrating manner; and the end parts of the vertical concrete-filled steel tube columns and the transverse concrete-filled steel tube beams are fixedly matched with the lap joint clamping grooves or the lap joint bulges in the corresponding inner walls of the main frame in a mortise and tenon inserting manner. The shear wall has the advantages of being compact in structure and convenient to assemble, and the field assembling efficiency of the shear wall can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering and construction, and in particular relates to a mortise and tenon snap-fit ​​connection steel tube concrete shear wall. Background Art

[0002] Prefabricated steel structure residential buildings have a high degree of industrialization, a short construction period, are not restricted by seasons, have less wet work on site, and have a high material utilization rate. They are currently an ideal residential building system for promoting residential modernization. As an important load-bearing component in the composite structure system, the shear wall bears both vertical loads and horizontal earthquake or wind loads. The traditional shear wall structure is recorded in patent texts such as "CN116180936A" and "CN111851789A" in China. Most of them use reinforced concrete shear walls without steel pipes as a manufacturing blueprint for related designs. Later, with the addition of steel pipe systems and the technical development of China's ancient mortise and tenon structures, some prefabricated enterprises gradually combined steel pipe shear walls with mortise and tenon structures so that they can quickly assemble the internal steel pipes of steel pipe shear walls inside the processing plant to achieve industrialized construction and modular assembly. This is recorded in patent texts such as "CN116065691A" and "CN108824818B" in China. However, this type of current mortise and tenon combined steel tube concrete shear wall, on the one hand, focuses on the snap-on mortise and tenon assembly at the cross connection node of the inner frame, while ignoring the convenient assembly between the inner frame and the outer frame. Some of these shear walls even still use traditional flange and other bolt assembly processes, which is time-consuming and laborious; on the other hand, the cross connection node of the inner frame needs to be grooved to realize the snap-on mortise and tenon assembly, and the lack of strength requires the use of a large number of axilla plates or reinforcing steel plates or even screw structures for reinforcement, which often takes up a lot of time for on-site construction workers. Therefore, it is urgent to solve this problem. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a mortise and tenon snap-on connection steel tube concrete shear wall, which has the advantages of compact structure and convenient assembly, and can effectively improve the on-site assembly efficiency of the shear wall.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The mortise and tenon snap-fit ​​connection steel tube concrete shear wall comprises a main frame and an inner frame located within the main frame, and is characterized in that: the inner frame comprises vertical steel tube concrete columns and transverse steel tube concrete beams, and an assembly hole is transversely penetrated through the vertical steel tube concrete columns for the transverse steel tube concrete beams to pass through, and the ends of the vertical steel tube concrete columns and the transverse steel tube concrete beams are fixedly matched with the overlapping grooves or overlapping protrusions on the corresponding inner walls of the main frame by mortise and tenon plug-in connections.

[0006] Preferably, the horizontal concrete-filled steel tubular beam includes end connecting beams located at both ends and fixed to the inner wall of the main frame, and a middle connecting beam located in the middle; notch grooves that can be inserted into each other along the beam length direction are arranged at the adjacent mating ends of each connecting beam. At the top of the groove wall of one set of notch grooves, a cornice is convexly provided along the beam length direction, and at the corner of the groove bottom, a groove for matching the cornice at the other set of notch grooves is concavely provided along the beam length direction; a positioning groove is concavely provided along the direction perpendicular to the beam length at a section of the groove wall between the cornice and the groove of the current notch groove, so that after the two sets of notch grooves are horizontally tenoned and mortised, the positioning grooves at the two sets of notch grooves enclose each other to form a through hole for the vertical positioning rod to pass through. At this time, the vertical positioning rod restricts the two sets of notch grooves from generating a lateral separation action; both ends of the vertical positioning rod extend along the rod length direction and are fixed to the opposite inner walls of the main frame.

[0007] Preferably, one side wall of the groove and the bottom of the positioning groove are on the same plane, and the groove width of the groove is equal to the groove depth of the positioning groove.

[0008] Preferably, the vertical positioning rod has an equal spacing from the two adjacent vertical concrete-filled steel tubular columns.

[0009] Preferably, the main frame is in a "mouth" shape and includes two concrete-filled steel tubular frame columns and two concrete-filled steel tubular frame beams; gusset plates are fixed to the inner side walls of the concrete-filled steel tubular frame columns and the concrete-filled steel tubular frame beams, and the plane of the gusset plate is parallel to the length direction of the corresponding concrete-filled steel tubular frame column or concrete-filled steel tubular frame beam; the gusset plates are in pairs, and the two gusset plates in the same group are parallel to each other in plane, and the two gusset plates cooperate with the corresponding inner wall of the main frame to jointly form the lap joint slot; lap plates are convexly provided at the ends of the vertical concrete-filled steel tubular column and the horizontal concrete-filled steel tubular beam. The lap plates at the same end are in two groups and are parallel to each other in plane to form a tenon mouth, so that the tenon mouth and the lap joint slot on the concrete-filled steel tubular frame beam as the mortise mouth jointly form a tenon and mortise plug-in fixed fit; the end of the horizontal concrete-filled steel tubular beam is inserted into the lap joint slot on the concrete-filled steel tubular frame column and forms a tenon and mortise plug-in fixed fit.

[0010] Preferably, reserved holes communicating with the pipe cavity are arranged on the horizontal concrete-filled steel tubular beam.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1) Through the above scheme, on the one hand, the present utility model realizes the rapid assembly effect in this area by carrying out tenon and mortise design at the joint points of the inner frame and the outer frame; on the other hand, at the beam-column joints of the original inner frame, a through-hole design is adopted, thereby ensuring the structural strength of the vertical concrete-filled steel tubular column. In the later stage, conventional welding and the like can be supplemented to achieve secondary fastening. Compared with the complicated auxiliary reinforcement structure, it can obviously more effectively improve the on-site assembly efficiency of the shear wall.

[0013] 2) On the basis of the above structure, the utility model retains the overall rigidity of the vertical steel tube concrete column while modularizing the transverse steel tube concrete beam, that is, the assembly of the end connecting beam and the middle connecting beam is adopted to improve the transportation and storage effect. When assembling each connecting beam, the mortise and tenon method is also adopted; in particular, when the mortise and tenon method of the utility model is adopted, not only can each connecting beam itself realize the bite function, but also the vertical positioning rod is used to ensure the locking effect of each connecting beam along the length direction of the beam, so as to ensure the purpose of the overall assembly of the transverse steel tube concrete beam; at the same time, the vertical positioning rod can directly select reinforcements such as steel bars, and it can also play the role of assisting the vertical steel tube concrete column, so as to minimize or even avoid the problem of reduced rigidity of the vertical steel tube concrete column caused by the opening of the assembly hole. In addition, while preventing the relative slippage at the mortise and tenon point, the vertical positioning rod can further control the installation error of the mortise and tenon point, achieving multiple goals at one stroke.

[0014] 3) Furthermore, the groove and the positioning groove can actually be designed as an integrated whole, that is, the groove wall on one side of the groove and the groove bottom of the positioning groove are located on the same plane, and the groove width of the groove is equal to the groove depth of the positioning groove; this allows for one-step processing during processing, which is more cost-effective and will not affect the use effect.

[0015] 4) The main frame itself is also a frame structure formed by assembling beams and columns. When cooperating with the inner frame, it is preferred to adopt an overlapping slot method to ensure its mortise and tenon matching structure.

[0016] 5) The reserved holes at the transverse steel tube concrete beam are conducive to its own lightweight, and also facilitate the slurry to be poured deeper into the steel tube cavity of the corresponding connecting beam to improve its own structural strength and ensure the integrity after concrete pouring. It will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 for Figure 1 Exploded diagram of the structure;

[0019] Figure 3 for Figure 2 A local enlarged view of part I;

[0020] Figure 4 for Figure 3 Assembly state diagram;

[0021] Figure 5 This is a diagram of the mortise and tenon engagement state of the adjacent ends of the connecting beam;

[0022] Figure 6It is a schematic diagram of the three-dimensional structure of the notch groove.

[0023] The actual correspondence between the reference numerals and component names of the utility model is as follows:

[0024] 10-main frame; 11-lap slot; 11a-attachment plate; 12-steel tube concrete frame column; 13-steel tube concrete frame beam;

[0025] 20-inner frame; 21-vertical concrete-filled steel tube column; 21a-assembly hole; 22-transverse concrete-filled steel tube beam; 221-notch groove; 221a-eaves; 221b-groove; 221c-positioning groove; 21b-mortise;

[0026] 30-Vertical positioning rod. DETAILED DESCRIPTION

[0027] For ease of understanding, here we combine Figure 1-Figure 6 The specific structure and working mode of the utility model are further described as follows:

[0028] The utility model is formed by combining a main frame 10 and an inner frame 20. Figure 2 As shown, the main frame 10 includes steel tube concrete frame columns 12 and steel tube concrete frame beams 13, in which lap slots 11 formed by tie plates 11a are arranged; the inner frame 20 is formed by vertical steel tube concrete columns 21 with assembly holes 21a and transverse steel tube concrete beams 22.

[0029] During the design, on the one hand, the transverse steel tube concrete beam 22 is installed through the vertical steel tube concrete column 21; on the other hand, the transverse steel tube concrete beam 22 includes end connecting beams located at both ends to be fixed to the inner wall of the main frame 10 and a middle connecting beam located in the middle, and each section of the connecting beam is matched with the matching hole in the middle area to form a Figure 1 As shown in the assembly state; and at the adjacent mating ends of each adjacent connecting beam, there are arranged Figure 3-Figure 5 The end connecting beam and the main frame 10 adopt a direct lateral snap-in structure, and the vertical steel tube concrete column 21 is laterally snapped into the overlapping slot 11 by means of the tenon 21b, thereby realizing the mortise and tenon matching structure.

[0030] As for the transverse steel tube concrete beam 22, Figure 5-Figure 6 As shown, adjacent matching sections of adjacent connecting beams are arranged with "L"-shaped notch grooves 221; the horizontal groove walls of the notch grooves 221 parallel to the beam length direction are not only provided with convex eaves 221a, but also with concave matching grooves; the matching grooves have the functions of both the groove 221b and the positioning groove 221c.

[0031] During assembly, the main frame 10 is first installed, and then the inner frame 20 is installed relative to the main frame 10; then, the tenons 21b formed by the lap plates 23a at the ends of each vertical steel tube concrete column 21 are matched with the lap slots 11 formed by the lacing plates 11a, and Figure 2 The assembly relationship shown in the figure realizes the mortise and tenon and welding cooperation of each. Then, each connecting beam is installed one by one, and the end connecting beam is normally inserted into the lap slot 11 and welded. The adjacent connecting beams are connected according to Figure 3-4 After the vertical positioning rod 30 passes through the through hole formed by the positioning groove 221c, both ends of the vertical positioning rod 30 can be fixed to the main frame 10 by means of hole axis fixing or welding, and finally form a Figure 1 The assembly structure shown. After the assembly and welding are complete, self-compacting high-performance concrete is filled into the wall, and the integral wall structure is realized with the non-dismantling formwork, tie rods, etc. In actual use, the non-dismantling formwork is fixed to both sides of the wall through the tie rods passing through the shear wall, and the surface of the non-dismantling formwork can be decorated, so as to directly form a complete wall surface without the need for subsequent decoration. High-performance self-compacting concrete can be poured from bottom to top through the bottom opening of the non-dismantling formwork.

[0032] Of course, for those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, but also includes the same or similar methods that can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the attached claims rather than the above description.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0034] The technical parts not described in detail in the present invention are all known technologies.

Claims

1. A mortise and tenon joint steel tube concrete shear wall, comprising a main frame (10) and an inner frame (20) located inside the main frame (10), characterized in that: The inner frame (20) includes vertical concrete-filled steel tubular columns (21) and horizontal concrete-filled steel tubular beams (22). An assembly hole (21a) for the horizontal concrete-filled steel tubular beam (22) to pass through is horizontally penetrated through the vertical concrete-filled steel tubular column (21). The ends of the vertical concrete-filled steel tubular column (21) and the horizontal concrete-filled steel tubular beam (22) form a tenon-mortise plug-in type fixed fit with the lap joint slots (11) or lap joints at the corresponding inner walls of the main frame (10).

2. The mortise and tenon snap-fit ​​connection steel tube concrete shear wall according to claim 1, characterized in that: The horizontal concrete-filled steel tubular beam (22) includes end connecting beams located at both ends to be fixed to the inner wall of the main frame (10) and a middle connecting beam located in the middle; notch grooves (221) that can be inserted into each other along the beam length direction are arranged at the adjacent mating ends of each connecting beam. A cornice (221a) is convexly provided along the beam length direction at the top of the groove wall of one group of notch grooves (221), and a groove (221b) for matching the cornice (221a) at the other group of notch grooves (221) is concavely provided at the bottom corner along the beam length direction; a positioning groove (221c) is concavely provided along the direction perpendicular to the beam length at a section of the groove wall between the cornice (221a) and the groove (221b) of the current notch groove (221). After the two groups of notch grooves (221) are horizontally tenon-mortised and inserted into each other, the positioning grooves (221c) at the two groups of notch grooves (221) enclose each other to form a through hole for the vertical positioning rod (30) to pass through. At this time, the vertical positioning rod (30) restricts the two groups of notch grooves (221) from generating a lateral separation action; the two ends of the vertical positioning rod (30) extend along the rod length direction respectively and are fixed to the opposite inner walls of the main frame (10).

3. The mortise and tenon snap-fit ​​connection steel tube concrete shear wall according to claim 2, characterized in that: One side groove wall of the groove (221b) is in the same plane as the bottom of the positioning groove (221c), and the groove width of the groove (221b) is equal to the groove depth of the positioning groove (221c).

4. The mortise and tenon snap-fit ​​connection steel tube concrete shear wall according to claim 3, characterized in that: The vertical positioning rod (30) has an equal distance from the adjacent two vertical concrete-filled steel tubular columns (21).

5. The mortise and tenon snap-fit ​​connection steel tube concrete shear wall according to claim 1, 2, 3 or 4, characterized in that: The main frame (10) is in a "mouth" shape and includes two concrete-filled steel tubular frame columns (12) and two concrete-filled steel tubular frame beams (13); stiffening plates (11a) are fixed to the inner side walls of the concrete-filled steel tubular frame columns (12) and the concrete-filled steel tubular frame beams (13). The plane of the stiffening plate (11a) is parallel to the length direction of the corresponding concrete-filled steel tubular frame column (12) or concrete-filled steel tubular frame beam (13); the stiffening plates (11a) are grouped in pairs, and the two stiffening plates (11a) in the same group are parallel to each other in plane. The two stiffening plates (11a) cooperate with the corresponding inner wall of the main frame (10) to jointly form the lap joint slot (11); a lap joint plate is convexly provided at the end of the vertical concrete-filled steel tubular column (21). The lap joint plates at the same end are two groups and are parallel to each other in plane to form a tenon opening (23). Thus, the tenon opening (23) and the lap joint slot (11) serving as the mortise opening on the concrete-filled steel tubular frame beam (13) jointly form a tenon-mortise plug-in type fixed fit; the end of the horizontal concrete-filled steel tubular beam (22) is inserted into the lap joint slot (11) on the concrete-filled steel tubular frame column (12) and forms a tenon-mortise plug-in type fixed fit.

6. The mortise and tenon snap-fit ​​connection steel tube concrete shear wall according to claim 2, 3 or 4, characterized in that: Reserved holes communicating with the pipe cavity are arranged on the horizontal concrete-filled steel tubular beam (22).

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