CN107060088A - A kind of steel construction mortise-tenon joint part and attaching method thereof - Google Patents

Abstract

The invention discloses a steel structure mortise and tenon joint, comprising a tenon and a tenon, the tenon is an I-shaped steel structure, the tenon and groove is a T-shaped steel chute, and the mortise and tenon joint between the I-shaped steel structure and the T-shaped steel chute is tight In addition, the two sides of the upper flange of the I-shaped steel tenon are respectively provided with grooves along the height direction; the two sides of the T-shaped steel tongue and groove flange are respectively provided with protrusions along the height direction, and the protrusions and the grooves are just completely matched. The mortise and the mortise are also anchored by fixing bolts; the mortise and the mortise are respectively connected to the first steel component and the second steel component before the connection. The invention also provides its connection method. The joints between the steel components in the present invention are mortise and tenon assembled joints, which not only will not weaken the size of the original components at the joints, but also increase the size of the joints to ensure that the components are firmly connected; in addition, the combination of tenon and tenon joints Larger surface, strong cross-sectional shear resistance, and higher safety.

Description

A kind of steel structure mortise and tenon joint and its connection method

technical field

The invention belongs to the technical field of building connectors, and in particular relates to a steel structure mortise and tenon connector and a connecting method thereof.

Background technique

Due to the high strength of steel, good deformation performance and easy construction, large factories, venues and super high-rise buildings are all made of steel structures. In steel structure buildings, the components or components are generally connected by welding, riveting and bolt connection. These traditional connection methods usually require opening, drilling or welding at the joints of components, and these The measures will cause damage to the structure or components to a certain extent, and affect the integrity of the structure. In addition, the opening or welding is often the stress concentration point, which is the weak point of the structure. This is true for both anchor bolts and welds. High strength and deformation capacity requirements, a little improper treatment will cause disjointed components or even structural damage.

In terms of connection methods, the traditional connection method is greatly affected by the connection technology level of the construction personnel and the construction site environment. affect structural safety. In addition to the above problems, the country is currently vigorously promoting prefabricated buildings and developing building industrialization to improve the environment and control energy consumption. This requires future construction sites to minimize construction operations with high energy consumption and high environmental pollution. For on-site welding, Traditional steel component connection methods and construction methods such as opening and drilling need to be improved and adjusted. However, there are still few reports on the development of such steel member connectors.

To sum up, for the connection of steel components, it is necessary to study steel component connectors and connection methods that are safer, more reliable and suitable for the future development of building industrialization.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a mortise and tenon joint of steel components and a connection method thereof with simple structure, reliable connection, convenient construction and low energy consumption.

In order to provide a steel structure mortise and tenon joint to achieve one of the above objectives, the present invention adopts the following technical solutions:

A steel structure mortise and tenon joint, comprising a tenon and a tenon groove, the tenon and the tenon groove form a tight fit, and the tenon and the tenon groove are also anchored by fixing bolts; in addition, the tenon and the tenon groove The two are respectively connected with the first steel component and the second steel component before the snap connection.

Preferably, the tenon is an I-shaped steel structure, the tenon groove is a T-shaped steel chute, and the mortise and tenon joint between the I-shaped steel structure and the T-shaped steel chute is tight.

Further, the mortise is set as a T-shaped chute with a closed bottom that does not slide out after the I-shaped mortise is snapped into the mortise, and the I-shaped mortise matches the size of the T-shaped chute, and the connection fits perfectly.

Further, the two sides of the upper flange of the I-shaped steel tenon are respectively provided with grooves along the height direction; the two sides of the T-shaped steel tenon and groove flange are respectively provided with protrusions along the height direction; when the tenon and the tenon are fastened , the protrusions and grooves on both sides of the flange at the joint just fit perfectly.

Further, the groove is set as a concave trapezoidal wedge groove, which is arranged symmetrically along the height direction of the two sides of the upper flange of the I-shaped tenon; The height directions of the sides are set symmetrically; when the tenon and the tenon groove are clamped, the convex trapezoidal wedge head and the concave trapezoidal wedge groove on both sides of the flange of the joint just completely fit.

Preferably, the mortise head and the upper part of the mortise groove are provided with a tenon stand with holes and a mortise stand with holes respectively, and the tenon stand with holes and the mortise stand with holes are respectively located on both sides of the mortise and tenon joint surface and are anchored by fixing bolts.

Preferably, the tenon and the tenon are respectively welded to the steel member 1 and the steel member 2 before connection.

The present invention also provides a connection method for the above steel structure mortise and tenon joint, comprising the following steps:

S1. Making tenons: first determine the steel grade and specifications of the raw materials, then carry out lofting, material numbering, cutting, correction and molding in sequence to produce the I-shaped tenons of the required specifications, and then forge the groove mold blank through steel plate, and finally After secondary processing, grooves are made along the height direction on both sides of the upper flange of the I-shaped steel tenon;

S2. Make the tenon and groove: first determine the steel grade and specification of the raw material, and then carry out lofting, material number, cutting, straightening and forming in sequence to make a T-shaped steel tenon and groove with a closed bottom, and then forge the convex mold blank through steel plate forging, and finally Protrusions are respectively made along the height direction on both sides of the T-shaped steel tongue and groove flange after secondary processing;

S3. Making stand ears: after lofting, numbering, cutting and forming the required stand ears, use CNC drilling machine processing technology to drill holes to make corresponding tenon stand ears with holes and mortise stand ears with holes, and respectively match them with Tenon and tenon are firmly welded;

S4. Connection of steel components and connectors: Weld the ends to be connected of the first steel component and the second steel component to the bottom plate of the tenon and tenon groove of the connector respectively, and completely remove the weld seam and the welding slag on both sides after the welding is completed. Splash and weld spatter, etc.;

S5. Ultrasonic flaw detection: Use ultrasonic flaw detection technology to detect all welds to ensure good welding quality;

S6. Prefabricated parts transportation: transport the prefabricated connectors from the factory building to the construction site;

S7. Mortise and tenon connection: insert the tenon from the opening of the tenon groove into the bottom of the tenon groove through hoisting operation, so that the position is locked, and the protrusions and grooves on both sides of the joint flange are tightly fastened to each other;

S8. Bolt connection: By using fixing bolts to anchor the tenon and tenon ears with holes and the tenon ears with holes on the upper part of the mortise and tenon joint, and then anchor the tenon in the tenon and groove, further restrict the tenon from sliding in the tenon and groove, and ensure a firm connection.

Preferably, the groove is set as a concave trapezoidal wedge groove, which is arranged symmetrically along the height direction of the two sides of the upper flange of the I-shaped tenon; The height directions of the sides are set symmetrically; when the tenon and the tenon groove are clamped, the convex trapezoidal wedge head and the concave trapezoidal wedge groove on both sides of the flange of the joint just completely fit.

The beneficial effects of the present invention are:

1) Traditional welding, bolting and riveting steel member connection methods usually require opening, drilling or welding at the member joints. These measures will cause structure or member damage to a certain extent and affect its integrity; in addition Openings or welds are often places of stress concentration, which have high strength and deformation requirements for both anchor studs and welds. If they are not handled properly, components will be disjointed or even structural damage will occur. However, in the present invention, the connectors between the steel components, that is, the joints, are mortise and tenon assembly joints, which not only will not weaken the size of the original components at the joints, but also increase the size of the joints to ensure that the components are firmly connected; in addition, The joint surface of the mortise and tenon joint of the present invention is relatively large, and has a strong cross-sectional shear resistance, and has a higher degree of safety than traditional connection methods using bolts, rivets, etc. for shear resistance.

2), the traditional welding, bolting and riveting steel member connection methods have high requirements on the mechanical operation and welding technology of the construction personnel, and are greatly affected by the working environment on the construction site (such as high-altitude operations, low-temperature operations, etc.), and the quality of the project hard to control. The connection method of the connector of the present invention is mainly on-site assembly, and the tenon and tenon of the connector have been installed on the first steel member and the second steel member when the factory made it, without the need for complicated welding and mechanical work on site. operation, the technical requirements for construction personnel are relatively low, the project quality is easy to guarantee, and the environmental pollution and energy consumption caused by the construction are greatly reduced; in addition, due to the advantages of node assembly, the connector, that is, the joint, can be scaled up in the factory Generation, in line with the needs of the development of my country's construction industrialization.

3) The connector device of the present invention is simple, reliable, and easy to operate; the mortise and tenon size of the connector can be appropriately adjusted according to the size of the connecting member, and has a wide range of application values.

4) In summary, the connector of the present invention has good integrity and reliability, strong shear resistance at the joint, simple assembly, convenient construction and low construction energy consumption, which provides a new development for the connection technology of steel structures or components. direction and strong support.

Description of drawings

Fig. 1 is a perspective view of the three-dimensional structure of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a three-dimensional schematic diagram of the tenon of the present invention.

FIG. 3 a is a front view of FIG. 3 .

FIG. 3b is a side view of FIG. 3 .

FIG. 3c is a top view of FIG. 3 .

Fig. 4 is a three-dimensional schematic diagram of the tenon and groove of the present invention.

FIG. 4a is a front view of FIG. 4 .

FIG. 4b is a side view of FIG. 4 .

FIG. 4c is a top view of FIG. 4 .

The meanings of the marked symbols in the figure are as follows:

1-tenon 2-tenon groove 3-concave trapezoidal wedge groove 4-convex trapezoidal wedge

5-mortise ear with hole 6-mortise ear with hole 7-fixing bolt

8-Steel component 1 9-Steel component 2

detailed description

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

A steel structure mortise and tenon joint

As shown in Figures 1 and 2, it includes a tenon 1 and a tenon groove 2. As shown in Figures 3, 3a, 3b, and 3c, the tenon 1 is a steel structure with an I-shaped cross section, and in combination with Figures 4, 4a, 4b, As shown in 4c, the mortise 2 is a T-shaped steel chute, and the mortise and tenon combination between the I-shaped steel structure and the T-shaped steel chute is tight. It is connected with the steel component 9; the mortise 1 and the mortise 2 are also anchored by the fixing bolt 7, so as to ensure that the mortise and tenon joint does not loosen or trip, and realize the effective connection of the steel component 8 and the steel component 2 9 .

The mortise 2 is set as a T-shaped chute with a closed bottom that does not slide out after the I-shaped mortise 1 snaps into the mortise 2, and the I-shaped mortise matches the size of the T-shaped chute, and the connection fits perfectly.

The two sides of the upper flange of the I-shaped steel tenon 1 (that is, the upper short horizontal of the two horizontals of the I-shaped steel) are respectively provided with grooves along the height direction; There is a protruding head; when the tenon 1 and the tenon groove 2 are fastened, the protruding head and the groove on both sides of the flange of the joint just fit completely.

Specifically, both sides of the upper flange of the I-shaped steel tenon 1 are respectively provided with concave trapezoidal wedge grooves 3 along the height direction; ; When the tenon 1 and the tenon groove 2 are fastened, the convex trapezoidal wedge head 4 and the concave trapezoidal wedge groove 3 on both sides of the flange of the connection are just completely matched, and they are well interlocked and ensure that they will not be released after the connection.

The upper part of the mortise head 1 and the mortise groove 2 is respectively provided with a tenon stand ear with holes 5 and a mortise stand ear with holes 6, and the tenon stand ears 5 with holes and the mortise stand ear 6 with holes are respectively located on both sides of the mortise and tenon joint surface and are anchored by fixing bolts 7, so that Further restrict the sliding of the tenon in the tenon groove to ensure a firm connection.

Specifically, the mortise 1 and the mortise 2 can be respectively welded to the steel member 1 8 and the steel member 2 9 in the factory (or easy construction site) before the connection, and the assembly and connection are carried out directly after the components are transported to the construction site. It is especially suitable for component connection of industrialized prefabricated buildings.

The connection method of the above-mentioned steel structure mortise and tenon joints

Including the following steps:

S1. Manufacture tenons: first determine the steel grade and specifications of the raw materials, and then carry out lofting, material numbering, cutting, correction and molding in sequence to produce the I-shaped tenon 1 of the required specifications, and then forge the wedge groove mold blank through steel plate forging. Finally, after secondary processing, concave trapezoidal wedge grooves 3 are made symmetrically along the height direction on both sides of the upper flange of the I-shaped steel tenon 1;

S2. Make the tenon and groove: first determine the steel grade and specification of the raw material, and then carry out lofting, material number, cutting, straightening and forming in sequence to make a T-shaped chute 2 with a closed bottom, and then forge the wedge head mold blank through steel plate forging. Finally, after secondary processing, convex trapezoidal wedge heads 4 are made symmetrically along the height direction on both sides of the flange of the T-shaped steel tenon groove 2;

S3. Making stand ears: After lofting, numbering and cutting the required stand ears, use CNC drilling machine processing technology to drill holes to make corresponding tenon stand ears with holes 5 and mortise stand ears with holes 6, and put them together Weld firmly with tenon 1 and tenon groove 2 respectively;

S4. Connection of steel components and joints: weld the to-be-connected ends of steel component 1 8 and steel component 2 9 to the bottom plate of connector tenon 1 and tenon groove 2 respectively, and completely remove the weld seam and its two sides after welding Welding slag, spatter and weld spatter, etc.;

S5. Ultrasonic flaw detection: Use ultrasonic flaw detection technology to detect all welds to ensure good welding quality;

S6. Prefabricated parts transportation: transport the prefabricated connectors from the factory building to the construction site;

S7. Mortise and tenon connection: Insert the connecting tenon 1 from the opening of the tenon groove 2 into the bottom of the tenon groove 2 through hoisting operation, so that its position is locked, and the convex trapezoidal wedge head 4 and the concave trapezoidal wedge groove 3 on both sides of the joint flange are wedged The grooves are fastened tightly to each other;

S8. Bolt connection: by using the fixing bolt 7 to anchor the tenon and tenon ear with holes 5 and the tenon and tenon with holes 6 on the upper part of the mortise and tenon joint, and then anchor the tenon 1 and the tenon groove 2, and further restrict the tenon 1 from sliding in the tenon and groove 2, ensuring The connection is solid.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (9)

1. a kind of steel construction mortise-tenon joint part, it is characterised in that：Including tenon (1), tongue-and-groove (2), the tenon (1) and tongue-and-groove (2) the tight snap fit of station is formed, the tenon (1) is also anchored with tongue-and-groove (2) by fixing bolt (7)；In addition, institute State tenon (1) and tongue-and-groove (2) is connected with steel member one (8) and steel member two (9) respectively before engaging.

2. a kind of steel construction mortise-tenon joint part according to claim 1, it is characterised in that：The tenon (1) is I-shaped Steel construction, tongue-and-groove (2) is T-steel chute, and Tenon is tightly combined between i shaped steel structure and T-steel chute.

3. a kind of steel construction mortise-tenon joint part according to claim 2, it is characterised in that：The tongue-and-groove (2) is set to coordinate I-shaped tenon (1) is caught in the T-shaped chute for the bottom lock not skidded off after tongue-and-groove (2), and I-shaped tenon and T-shaped chute size Match, connection fits together perfectly.

4. a kind of steel construction mortise-tenon joint part according to claim 3, it is characterised in that：The i shaped steel tenon (1) Top flange both sides are respectively equipped with groove along short transverse；T-steel tongue-and-groove (2) edge of a wing both sides are respectively equipped with convex along short transverse Head；After tenon (1) and tongue-and-groove (2) clamping, the plush copper and groove of junction edge of a wing both sides are agreed with completely just.

5. a kind of steel construction mortise-tenon joint part according to claim 4, it is characterised in that：The groove is set to recessed trapezoidal wedge Groove (3), is respectively symmetrically set along the short transverse of I-shaped tenon (1) top flange both sides；The plush copper is set to convex trapezoidal wedge head (4), respectively symmetrically set along the short transverse of T-steel tongue-and-groove (2) edge of a wing both sides；After tenon (1) and tongue-and-groove (2) clamping, even The convex trapezoidal wedge head (4) and recessed trapezoidal wedge groove (3) of the place of connecing edge of a wing both sides are agreed with completely just.

6. a kind of steel construction mortise-tenon joint part according to claim 1, it is characterised in that：The tenon (1) and tongue-and-groove (2) Top is respectively equipped with tenon crect ear (5) with holes and fourth of the twelve Earthly Branches crect ear with holes (6), and the tenon crect ear (5) with holes and fourth of the twelve Earthly Branches crect ear with holes (6) are respectively Anchored positioned at Tenon faying face both sides and by fixing bolt (7).

7. a kind of steel construction mortise-tenon joint part according to claim 1, it is characterised in that：The tenon (1) and tongue-and-groove (2) It is respectively welded in the pre-connection on steel member one (8) and steel member two (9).

8. a kind of connection method of steel construction mortise-tenon joint part, it is characterised in that comprise the following steps：

S1, making tenon：First determine raw material grade of steel and specification, then successively carry out setting-out, number material, cutting and correction and Shaping, the I-shaped tenon (1) of specification needed for producing, then groove mold base is forged and pressed out by steel plate, eventually pass secondary operation In i shaped steel tenon (1) top flange both sides groove is produced along short transverse；

S2, making tongue-and-groove：First determine raw material grade of steel and specification, then successively carry out setting-out, number material, cutting and correction and Shaping, produces the T-steel tongue-and-groove (2) of bottom lock, then forges and presses out plush copper mold base by steel plate, eventually passes secondary operation and exists Produce plush copper (4) respectively along short transverse in T-steel tongue-and-groove (2) edge of a wing both sides；

S3, making crect ear：Required crect ear is carried out after setting-out, number material, excision forming, then using numerical control drilling machine process technology to it Drilled, produce corresponding tenon crect ear (5) with holes and fourth of the twelve Earthly Branches crect ear with holes (6), and by its respectively with tenon (1) and tongue-and-groove (2) firm welding is carried out；

S4, steel member and connector are connected：The end to be connected of steel member one (8) and steel member two (9) is respectively welded in connection On the bottom plate of part tenon (1) and tongue-and-groove (2), and thoroughly removing weld seam and its both sides welding slag, splashing and the overlap after welding terminates Deng；

S5, ultrasonic examination：All weld seams are detected with ultrasonic examination technology, it is ensured that welding quality is good；

S6, prefabricated component transport：Prefabricated connector is transported to job site from factory building；

S7, mortise-tenon joint：Tenon (1) is inserted into tongue-and-groove (2) bottom from tongue-and-groove (2) opening by lifting to operate, makes its position It is locking, and the plush copper (4) and groove of joint edge of a wing both sides mutually fasten closely；

S8, bolt connection：It is by using fixing bolt (7) that the tenon crect ear (5) with holes on mortise-tenon joint part top and the fourth of the twelve Earthly Branches with holes is vertical Ear (6) is anchored, and then tenon (1) is anchored in tongue-and-groove (2), is further limited tenon (1) and is slided in tongue-and-groove (2), it is ensured that even Connect firm.

9. a kind of connection method of steel construction mortise-tenon joint part according to claim 8, it is characterised in that：The groove is set For recessed trapezoidal wedge groove (3), respectively symmetrically set along the short transverse of I-shaped tenon (1) top flange both sides；The plush copper is set to Convex trapezoidal wedge head (4), is respectively symmetrically set along the short transverse of T-steel tongue-and-groove (2) edge of a wing both sides；When tenon (1) and tongue-and-groove (2) After clamping, the convex trapezoidal wedge head (4) and recessed trapezoidal wedge groove (3) of junction edge of a wing both sides are agreed with completely just.