CN106193334B - Assembling type steel structure beam penetrates through mortise and tenon type node structure and assemble method - Google Patents

Abstract

The invention relates to the field of prefabricated steel structure buildings, and specifically relates to a prefabricated steel structure beam through mortise and tenon joint structure and an assembly method. The produced beam through mortise and tenon joint can be used as a joint in prefabricated steel structure buildings. The structure includes: through mother beam, mother beam upper flange, mother beam lower flange, mother beam web, truncated sub-beam, sub-beam upper flange, sub-beam lower flange, sub-beam web, sub-beam connecting key, 1/4 Mortise and tenon steel pipe columns, upper tenon and tenon grooves, lower tenon and tenon grooves, spliced partitions, ordinary steel beams, and ordinary steel pipe columns. The steel structure beams through the mortise and tenon joint structure and the assembly method of the present invention realize the connection between the through mother beam, the truncated sub-beam and four 1/4 mortise and tenon steel pipe columns. The structure and assembly method save building space, the force transmission path is more clear and reliable, the construction is simple and convenient, meets the needs of actual engineering design and construction, the welding workload is small, environmental protection and energy saving, and better meet the current requirements of green buildings.

Description

Prefabricated steel structure beam through mortise and tenon joint structure and assembly method

technical field

The invention relates to the field of prefabricated steel structure buildings, in particular to a prefabricated steel structure with beams interspersed with mortise and tenon joints and an assembly method. The produced beams intersected with mortise and tenon joints can be used as joints used in prefabricated steel structures.

Background technique

The prefabricated building has the advantages of environmental protection and fast construction speed, and has become one of the important directions of future construction development. The prefabricated steel structure is one of the important components of the prefabricated building. In the past, in the prefabricated steel structure, the beam-column joints were mainly connected by welding, and the force between the beam-column was transmitted by the weld seam. This kind of joint has many disadvantages, such as: high welding quality requirements, complex construction, large welding quality affected by human factors, large residual stress in the weld and around the weld, and the seismic performance is greatly affected by the weld. At the same time, if the beam is not connected For the column, the size of the reinforcement ring for auxiliary joint force transmission is large. If the beam penetrates the column, the root of the column needs to be welded with the beam, and the seismic performance of the joint is poor. For this reason, a beam through mortise and tenon joint structure and assembly method are proposed.

Contents of the invention

The purpose of the present invention is to propose an assembled steel structure beam through mortise and tenon joint structure and assembly method. The structure and assembly method realize the connection between the through mother beam, the truncated sub-beam and four 1/4 mortise and tenon steel pipe columns. Meet the needs of actual engineering design and construction.

Technical scheme of the present invention is:

An assembled steel structure beam through mortise and tenon joint structure, the structure includes: through mother beam, mother beam upper flange, mother beam lower flange, mother beam web, truncated sub-beam, sub-beam upper flange, sub-beam lower flange , sub-beam web, sub-beam connection key, 1/4 tenon-tenon steel pipe column, upper tenon-tenon groove, lower tenon-tenon groove, spliced partition, ordinary steel beam, ordinary steel pipe column, the specific structure is as follows:

The through mother girder is composed of the upper flange of the mother girder, the lower flange of the mother girder and the web of the mother girder. Each single body is composed of the upper flange of the sub-beam, the lower flange of the sub-beam, the web of the sub-beam and the connection key. Corresponding to the body, the webs of the sub-beams respectively extend out the connection keys, and the two connection keys are opposite. The connection of the outer beam end of the sub-beam;

Four 1/4 mortise and tenon steel pipe columns are combined to form tenon and tenon steel pipe columns, and the upper and lower mortise and tenon grooves are respectively set on the two sides of each 1/4 mortise and tenon steel pipe column; The upper and lower flanges on one side of the beam are inserted and matched with the upper and lower mortise and tenon grooves respectively; The two ends are connected by splicing partitions.

The prefabricated steel structure beam penetrates the mortise and tenon joint structure, and the depth of the upper mortise and tenon groove and the lower mortise and tenon groove is the width of the upper flange of the mother beam, the lower flange of the mother beam, the upper flange of the sub-beam and the lower flange of the sub-beam minus After half of the web thickness.

The prefabricated steel structure beam penetrates the mortise and tenon joint structure, semicircular grooves are set on the edge of the splicing partition, and a round hole is set in the middle of the splicing partition, and the welding rod is inserted into the semicircular groove, so that the points of the splicing partition Welded in mortise and tenon steel pipe column.

The assembly method of the assembled steel structure beam passing through the mortise and tenon joint structure, the specific assembly process is as follows:

(1) Insert the connection key of the truncated sub-beam between the upper and lower flanges of the through-beam, and weld the connection key of the truncated sub-beam to the two sides of the through-beam to complete the cross between the through-beam and the truncated sub-beam Orthogonal assembly to form a first-level assembly;

(2) Buckle the upper and lower mortise and tenon grooves of the 1/4 mortise and tenon steel pipe column into the upper and lower flanges of the truncated sub-beam and the through mother beam respectively, and repeat the above process to complete four The assembly of 1/4 mortise and tenon steel pipe columns with the first-level assembly forms the second-level assembly;

(3) Put the spliced partition into four mortise and tenon steel pipe columns composed of four 1/4 mortise and tenon steel pipe columns, extend the welding rod into the four semicircular grooves of the spliced partition for spot welding, and fix the spliced partition on Mortise and tenon steel pipe columns form the third-level assembly;

(4) Connect ordinary steel beams and ordinary steel pipe columns to the third-level assembly, the ordinary steel beams are respectively connected to the outer beam ends of the through mother beam and the cut-off sub-beam, and the ordinary steel pipe columns are respectively connected to the upper and lower ends of the mortise and tenon steel pipe columns connect;

Repeat the above process to complete the assembly of the fabricated steel frame structure.

In the assembly method of the assembled steel structure beam passing through the mortise and tenon joint structure, the steps (1)-(3) are all prefabricated and assembled in the factory.

In the assembly method of the assembled steel structure beam passing through the mortise and tenon joint structure, the step (4) is assembled on site.

In the assembly method of the assembled steel structure beam passing through the mortise and tenon joint structure, in step (3), half of the spliced partition is in the mortise and tenon steel pipe column along the thickness direction of the spliced partition, and the other half of the spliced partition is Outside the mortise and tenon steel pipe column.

In the assembly method of the assembled steel structure beam passing through the mortise and tenon joint structure, in step (4), the parts where the ordinary steel pipe column and the spliced partition are connected are all grooved, and the filler weld is used to complete the ordinary steel pipe column and The connection of mortise and tenon steel pipe columns; the connection of ordinary steel beams with the through mother beam and the outer beam end of the truncated sub-beam adopts the traditional butt weld or bolt connection method.

Compared with the steel structure beam-column joint of the original welding method, the steel structure beam through mortise and tenon joint structure and assembly method of the present invention has the following characteristics and beneficial effects:

1. This kind of connection does not adopt the form of reinforcing ring of traditional joints, but uses the upper and lower flanges and webs that pass through the mother beam and cut off the sub-beams as the internal support at the steel pipe joints, which saves space and is beautiful in architecture , and the connection structure is simple, and the installation is more convenient.

2. For this connection, the mortise-and-tenon steel pipe column adopts longitudinal penetration, which avoids the transverse weld of the traditional steel pipe at the joint cross section and the welding between the steel beam web and flange and the steel pipe wall, effectively preventing the column at the weld The local buckling failure of the wall improves the seismic performance of the joint.

3. For this type of connection, because there is no reinforcing ring, the force transmission path at the joint is clearer, and the beam end bending moment generated by the vertical load can almost be offset, and the mechanical performance is better.

4. For this type of connection, splicing partitions are installed at both ends of the mortise and tenon column, and the splicing partition extends into the joint between the two, making the connection between the tenon and tenon steel pipe column and the ordinary steel pipe column more reliable.

5. The components of the joints of the present invention can be prefabricated and processed in the factory, and the on-site construction is mainly based on assembly, and the welding workload is small. Therefore, the construction difficulty is small, the speed is fast, the technical level of the construction personnel is not high, and the construction quality is easy to guarantee.

Description of drawings

Fig. 1 is a three-dimensional view of the through mother girder of the present invention.

Fig. 2 is a three-dimensional view of the truncated sub-beam of the present invention.

Fig. 3 is a three-dimensional view of the 1/4 mortise and tenon steel pipe column of the present invention.

Figure 4 is a schematic plan view of a welded partition in a steel pipe.

Fig. 5 is a sectional view along A-A direction in Fig. 4 .

Fig. 6 is a three-dimensional view of the assembly process of the through mother beam and the cut-off sub-beam of the present invention.

Fig. 7 is a three-dimensional view of the cross-shaped steel beam assembled through the parent beam and the truncated sub-beam.

Figure 8 is a three-dimensional view of the assembly process of 1/4 mortise and tenon steel pipe columns and cross-shaped steel beams.

Figure 9 is a three-dimensional view of the assembled 1/4 mortise and tenon steel pipe column and cross-shaped steel beam.

Figure 10 is a three-dimensional view of the assembly process of spliced partitions and mortise and tenon steel pipe columns.

Fig. 11 is a three-dimensional diagram of a complete joint formed after splicing partitions and mortise and tenon steel pipe columns are assembled.

Figure 12 is a three-dimensional diagram of the frame structure formed after the joints are installed and welded with ordinary steel beams and steel pipe columns in the project.

Fig. 13 is a three-dimensional diagram of the novel connecting node combination framework of the present invention.

In the figure, 1. through the mother beam; 1a. the upper flange of the mother beam; 1b. the lower flange of the mother beam; 1c. the web of the mother beam; 2. the truncated sub-beam; 2c. Sub-beam web; 3. Sub-beam connection key; 4. 1/4 mortise and tenon steel pipe column; 5. Upper mortise and tenon groove; 6. Lower mortise and tenon groove; 9. Ordinary steel pipe column; 10. Semicircular groove.

Detailed ways

As shown in Figures 1 to 13, the beam-column mortise and tenon joint structure of the assembled steel structure of the present invention mainly includes: through mother beam 1, mother beam upper flange 1a, mother beam lower flange 1b, mother beam web 1c, cut-off sub-beam Beam 2, sub-beam upper flange 2a, sub-beam lower flange 2b, sub-beam web 2c, sub-beam connection key 3, 1/4 mortise and tenon steel pipe column 4, upper mortise and tenon groove 5, lower mortise and tenon groove 6, Splicing partitions 7, ordinary steel beams 8, ordinary steel pipe columns 9, etc., the specific structure is as follows:

As shown in Figure 1, the through mother beam 1 of the present invention is composed of mother beam upper flange 1a, mother beam lower flange 1b and mother beam web 1c, mother beam upper flange 1a, mother beam lower flange 1b respectively located on the mother beam web The upper and lower sides of 1c.

As shown in Figure 2, the truncated sub-beam 2 of the present invention is composed of two corresponding monomers, and each monomer is composed of a sub-beam upper flange 2a, a sub-beam lower flange 2b, a sub-beam web 2c and a connecting key 3, The upper flange 2a of the sub-beam and the lower flange 2b of the sub-beam are respectively located on the upper and lower sides of the web 2c of the sub-beam; at the corresponding positions of the two monomers, the web 2c of the sub-beam extends outwards respectively with connecting keys 3, and the two connecting keys 3 relative.

Wherein, the dimensions of the upper flange, lower flange and web of the through mother beam 1 and the cut-off sub-beam 2 are the same. The connecting key 3 is an overhanging part of the sub-beam web 2c, and the connecting key 3 is inserted and fitted with both sides of the through mother beam 1 . At the matching place, the size (length and height) of the connection key 3 is the same as the one-sided dimension of the cross-section enclosed by the upper flange 1a of the mother beam 1, the lower flange 1b of the mother beam and the web 1c of the mother beam 1 through the mother beam 1.

As shown in Figure 3, the mortise and tenon steel pipe column of the present invention is composed of four 1/4 mortise and tenon steel pipe columns 4, and the upper mortise and tenon grooves 5 and Lower mortise and tenon groove 6.

Among them, the one-sided flange (upper flange and lower flange) of the steel beam (through the mother beam 1 and the truncated sub-beam 2) is inserted into the groove (the upper mortise and tenon groove 5 and the lower mortise and tenon groove 6). At the fit, the shape and size of the grooves (upper mortise and tenon groove 5 and lower mortise and tenon groove 6) are the same as the shape and size of the single side flange of the steel beam (through the mother beam 1 and the cut-off sub-beam 2), The groove depth is half the flange width minus the web thickness.

As shown in Figures 4-5, splicing partitions 7 are set up and down the mortise and tenon steel pipe column of the present invention, and semicircular grooves 10 are opened on the edge of the splicing partitions 7, and the welding rod can be inserted into the semicircular grooves 10, and the splicing The partition plate 7 is spot welded in the 1/4 mortise and tenon steel pipe column 4 . A circular hole is arranged in the middle of the splicing partition 7, and the circular hole is for actually assembling fingers or tools into it to move and fix the splicing partition 7.

As shown in Figure 6-Figure 13, the assembly method of the assembled steel structure beam through the mortise and tenon joint structure of the present invention, the specific assembly process is as follows:

As shown in Figures 6-7, the connecting key 3 of the cut-off sub-beam 2 is inserted between the upper and lower flanges of the through-beam 1 at a predetermined position, and the connecting key 3 of the cut-off sub-beam 2 is connected to the through-beam 1 Weld the two sides of the connection to complete the cross-orthogonal assembly of the through mother beam 1 and the truncated sub-beam 2 to form a first-level assembly.

As shown in Figures 8-9, fasten the upper mortise and tenon groove 5 and the lower mortise and tenon groove 6 of the 1/4 mortise and tenon steel pipe column 4 into the upper flange and For the lower flange, repeat the above process to complete the assembly of four 1/4 mortise and tenon steel pipe columns 4 with the first-level assembly to form the second-level assembly.

As shown in Figures 10-11, put the spliced partition 7 into the mortise and tenon steel pipe column composed of four 1/4 mortise and tenon steel pipe columns 4, and along the thickness direction of the spliced partition 7, half of the spliced partition 7 is in the Inside the tenon-tenon steel pipe column, the other half of the spliced partition 7 is outside the tenon-tenon steel pipe column. Insert the welding rod into the four semicircular grooves 10 of the splicing partition 7 for spot welding, and fix the splicing partition 7 on the mortise and tenon steel pipe column to form a third-level assembly.

The above parts can be prefabricated and assembled in the factory.

The following parts need to be assembled on site.

As shown in Figure 12, ordinary steel beams 8 and ordinary steel pipe columns 9 are respectively connected to the third-level assembly body, ordinary steel beams 8 are respectively connected to the outer beam ends of the through mother beam 1 and the truncated sub-beam 2, and the ordinary steel pipe columns 9 are respectively Connect with the upper and lower ends of the mortise and tenon steel pipe column.

Among them, the part where the ordinary steel pipe column 9 is connected with the spliced partition 7 is grooved, and the filler weld is used to complete the connection between the ordinary steel pipe column 9 and the mortise and tenon steel pipe column; The connection of the outer beam end of the beam 2 can adopt the traditional butt welding or bolt connection method according to the design requirements.

As shown in Figure 13, the above process is repeated to complete the assembly of the prefabricated steel frame structure.

The results of the examples show that the prefabricated steel structure beam of the present invention penetrates through the mortise and tenon joint structure and the assembly method: instead of adopting the strengthening ring form of the traditional joint, the upper and lower flanges and webs of the through mother beam and the cut-off sub-beam The slab is used as the internal support of the steel pipe joints, which saves space and is beautiful in construction, and the connection structure is simple, and the installation is more convenient; The welding between the beam web and flange and the steel pipe wall effectively prevents the local buckling damage of the column wall at the weld and improves the seismic performance of the joint; because there is no reinforcing ring, the force transmission path at the joint is clearer, and the vertical The bending moment at the end of the beam generated by the load can almost be offset, and the mechanical performance is better; both ends of the mortise and tenon column are provided with spliced partitions, and the spliced partitions extend into the joint between the two, so that the mortise and tenon steel pipe column The connection with ordinary steel pipe columns is more reliable; each component that makes up the node can be prefabricated and processed in the factory, and the on-site construction is mainly based on assembly, with less welding workload. Therefore, the construction difficulty is small, the speed is fast, the technical level of the construction personnel is not high, and the construction quality is easy to guarantee, and it is environmentally friendly and energy-saving, which better meets the current requirements of green buildings.

Claims (7)

1. a kind of assemble method of assembling type steel structure beam perforation mortise and tenon type node structure, which is characterized in that the structure includes：It passes through Logical mother's beam blocks Zi Liang, 1/4 Tenon steel pipe column, splicing separating plate, common girder steel, ordinary steel tubing string, and concrete structure is as follows：

The female beam of perforation is made of female beam top flange, female lower flange of girder edge and female beam web, female beam top flange, female lower flange of girder edge difference position In the both sides up and down of female beam web；It blocks sub- beam to form for two corresponding monomers, each monomer is by Zi Liang top flanges, Zi Liang Lower flange, sub- beam web and connecting key composition, Zi Liang top flanges, sub- lower flange of girder edge are respectively positioned at up and down the two of sub- beam web Side；Two monomer corresponding sections, sub- beam web extends outward connecting key respectively, and two connecting keys are opposite, block Zi Liangtong The both sides inserting for crossing connecting key and the female beam of perforation coordinates；Common girder steel is connect respectively with penetrating through female beam and blocking beam-ends outside sub- beam；

Four 1/4 Tenon steel pipe column combinations form Tenon steel pipe column, are set respectively in two sides of each 1/4 Tenon steel pipe column Upper Tenon groove and lower Tenon groove；The female beam of perforation and block sub- beam unilateral top flange and lower flange respectively with upper Tenon groove It inserts and coordinates with lower Tenon groove；The splicing separating plate setting up and down of Tenon steel pipe column, ordinary steel tubing string respectively with Tenon steel pipe column Upper and lower ends connected by splicing separating plate；

The assemble method of the assembling type steel structure beam perforation mortise and tenon type node structure, specific assembling process are as follows：

（1）The connecting key for blocking sub- beam is inserted between the upper lower flange of the female beam of perforation, and the connecting key of sub- beam will be blocked with passing through The both sides welding that logical mother's beam connects completes the female beam of perforation and blocks sub- beam in the orthogonal assembling of cross, formation first order assembly；

（2）By the upper Tenon groove of 1/4 Tenon steel pipe column and lower Tenon groove, buckle into block the upper of the female beam of sub- beam and perforation respectively The edge of a wing and lower flange, repeat the above process, and complete the assembling of four 1/4 Tenon steel pipe columns and first order assembly, form second Grade assembly；

（3）Splicing separating plate is put into the Tenon steel pipe column of four 1/4 Tenon steel pipe column compositions, welding rod is stretched into splicing separating plate Splicing separating plate is secured within Tenon steel pipe column, forms third level assembly by four semi-circular recesses spot welding；

（4）Common girder steel and ordinary steel tubing string are connected to third level assembly, common girder steel respectively beam female with perforation and The outer beam-ends connection of sub- beam is blocked, upper and lower ends of the ordinary steel tubing string respectively with Tenon steel pipe column are connect；

It repeats the above process, completes the assembling of assembled steel frame structure.

2. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In the depth of upper Tenon groove and lower Tenon groove is female beam top flange, female lower flange of girder edge, Zi Liang top flanges and sub- lower flange of girder edge Width cuts the half after web thickness.

3. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In, the edge semi-circular recesses of splicing separating plate, splicing separating plate centre setting circular hole stretches into semi-circular recesses by welding rod, Splicing separating plate is made to be welded in Tenon steel pipe column.

4. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In step（1）-（3）Be prefabricated in the factory assembled complete.

5. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In step（4）It is completed at the scene.

6. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In step（3）In, along the thickness direction of splicing separating plate, the half of splicing separating plate in Tenon steel pipe column, splicing separating plate it is another Half outside Tenon steel pipe column.

7. the assemble method of assembling type steel structure beam perforation mortise and tenon type node structure described in accordance with the claim 1, feature exist In step（4）In, groove is done in the part that ordinary steel tubing string connects with splicing separating plate, using filling weld seam, completes common steel tube The connection of column and Tenon steel pipe column；Common girder steel beam female with perforation and the connection for blocking the outer beam-ends of sub- beam, using traditional docking Weld seam or bolt connection.