CN111910763A - Prefabricated steel structure building special-shaped structural column and its connection method - Google Patents

Abstract

The invention relates to the technical field of building steel structures, in particular to a prefabricated steel structure building special-shaped structural column and a connection method thereof. The existing structural column combined with steel and concrete has wet operation on site, which is not conducive to demolition and recycling. The prefabricated steel structure Building special-shaped structural columns and their connection methods, including structural columns, structural columns include H-section steel, T-section steel and stiffeners, stiffeners include long ribs and short ribs, T-section steel includes T-section steel web and T-section steel flange plate, H-section steel Including H-section steel web and H-section steel flange plate, the end of the T-section steel web plate away from the T-section steel flange plate is fixedly connected with the H-section steel web plate, the stiffener is located at the connection position of the H-section steel and the T-section steel, and the structural column is connected to the steel beam, The all-steel structural column solves the problem of wet operation in the existing steel structure and is environmentally friendly. After the building reaches its service life, it is convenient for dismantling and recycling, and has a good development prospect in the field of building steel structure technology.

Description

Prefabricated steel structure building special-shaped structural column and its connection method

technical field

The invention relates to the technical field of building steel structures, in particular to a prefabricated steel structure building special-shaped structural column and a connection method thereof.

Background technique

The construction industry is the pillar industry of the national economy. In recent years, my country has vigorously advocated the industrialization of construction. In July 2019, the Ministry of Housing and Urban-Rural Development approved the pilot project of prefabricated steel structure residential construction in Henan Province, focusing on Xinxiang City, Anyang City, Shangqiu City and Jiyuan City as steel structure assemblies. In the key promotion areas of residential buildings, pilot demonstrations will be carried out in order to realize an environment-friendly and resource-saving society.

Steel structure buildings have the advantages of mature technology, fast construction speed, good seismic performance, and suitability for factory production. As a residential structure system, they are suitable for the development of residential industrialization; at the same time, my country is a big steel-producing country, and prefabricated steel structure buildings can be used as a consumption capacity. An effective way to achieve green recycling.

As an important part of prefabricated steel structure buildings, the research and application of structural columns has extremely important significance and effect on the promotion and application of prefabricated steel structure residences. At present, structural columns widely used in prefabricated steel structure residences It is mainly composed of steel and concrete structural columns. The disadvantage is that there is wet work on site, the amount of concrete is large, and the structure is self-important. After the building reaches its service life, it is not conducive to demolition and recycling. It is not in line with green environmental protection and full life cycle. concept.

SUMMARY OF THE INVENTION

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a prefabricated steel structure building special-shaped structural column and a connection method thereof, so as to solve the problem that the existing structural column combined with steel and concrete has wet operation on site, which is not conducive to demolition and recycling. question.

Its technical scheme is that the prefabricated steel structure building special-shaped structural column and its connection method include structural columns, the structural columns include H-shaped steel, T-shaped steel and stiffeners, the stiffeners include long ribs and short ribs, and the T The section steel includes a T-section steel web and a T-section steel flange plate. The T-section steel web and the T-section steel flange plate are perpendicular to each other to form a T section steel with a "T" section. The H section steel includes one H section steel web and two H-shaped steel flange plates, the H-shaped steel webs are respectively perpendicular to each of the H-shaped steel flange plates, forming an H-shaped steel with an "H"-shaped cross-section, and the T-shaped steel webs are away from the ends of the T-shaped steel flange plates. It is fixedly connected with the H-section steel web, and the H-section steel, T-section steel web and T-section steel flange plate together form an axial force member, which jointly bears vertical loads and horizontal loads. The stiffeners are located at the H-section steel and At the connection position of the T-section steel, the stiffener is equivalent to increasing the section height, section modulus, section moment of inertia and radius of gyration of the special-shaped column, reducing the slenderness ratio, and improving the utilization efficiency, bending stiffness and overall stable bearing capacity of the special-shaped column. force, the structural columns connect the steel beams.

Further, T-shaped steels are respectively fixed in the center of both sides of the H-shaped steel web to form a center column, short ribs are provided on both sides of the H-shaped steel web in the center column, and long ribs are respectively provided on both sides of each T-shaped steel web.

Further, the center of one side of the H-shaped steel web is fixed with T-shaped steel to form a side column, and the side of the H-shaped steel web in the side column that is not connected to the T-shaped steel is provided with long ribs and the other side is provided with short ribs. Long ribs are arranged on both sides of the steel web.

Further, one side edge of the H-shaped steel web is fixed with the T-shaped steel to form a corner column, and the H-shaped steel web in the corner column is provided with long ribs on one side and short ribs on the other side, and the T-shaped steel in the corner column. Long ribs are arranged on both sides of the web, and the long ribs on the side of the T-shaped steel web close to the H-shaped steel flange plate are attached to the inner side of the H-shaped steel flange plate to form an "L"-shaped angle steel with stiffening ribs.

Further, in the above-mentioned central column, side column and corner column, a column transverse stiffener is arranged between the H-section steel and the T-section steel web for local reinforcement, and the column transverse stiffener is in an "L" shape, and both sides are It is fixed on the T-section steel web and the H-section steel web by welding.

Further, in the structural columns including side columns, corner columns and central columns, a corner is formed at the connection point of the H-section steel and the T-section steel. The structural column structure is formed by fixing with the long rib, or the short rib end is fixed with the T-shaped steel web, and the long rib end is fixed with the short rib to form the structural column structure.

Further, side columns, corner columns and central columns are combined together to form a complete frame structure together with steel beams. The structural columns are fixed by welding, and the lugs, bolted plates and bolts are used for positioning before fixing, and the lugs and bolted plates are cut off after welding.

Furthermore, the structural column and the steel beam are fixed by arranging T-shaped steel connectors at the steel beam wings and angle steel connectors at the steel beam webs.

Furthermore, the components between the structural column and the steel beam are fixed by means of bolt connection.

Further, the components between the structural column and the steel beam are fixedly connected by welding.

Furthermore, the components between the structural column and the steel beam are fixed by welding and bolting.

Further, a steel flange stiffening plate is arranged between the T-shaped steel connector and the structural column for local reinforcement, and the steel flange stiffening plate is fixed to the structural column by bolting or welding.

Further, a beam support is arranged between the steel beam and the structural column, a steel web stiffening plate is arranged between the beam support and the steel beam, and the beam support is fixed to the structural column and the steel beam respectively by welding or bolting.

Further, channel steel is selected for the stiffening rib, the opening of the channel steel is arranged toward the web, and the two adjacent long ribs and short ribs are perpendicular to each other.

Further, the stiffening rib is a steel plate.

Further, the stiffening rib can be any structure with enhanced column stability except steel plate or channel steel.

Further, the flange width of the structural column is the same as the width of the outer wall panel or the inner wall panel, which solves the problems of indoor convex columns or building facade convex columns in traditional buildings, and improves the indoor space of the building.

The technical effect of the present invention is that the building steel structure adopts the structural column in the form of an all-steel structure, which is at the leading level in China, changes the form that needs to be combined with concrete pouring to form a complete structural column in the traditional construction, avoids wet work in the on-site construction, and supports load-bearing It has the characteristics of high strength, good ductility and excellent seismic performance. At the same time, it is convenient for dismantling and recycling after the service life of the building, which is in line with the concept of green environmental protection. The structural column in the form of all-steel is provided with stiffeners, stiffening plates and other structures to enhance the strength of the structural column. , to ensure the safety of the steel structure, the section of the structural column formed by the stiffener in the form of connecting with the web has better mechanical properties and shear bearing capacity than the section form of the existing prefabricated steel structure building. High strength, good ductility and seismic performance, excellent overall stability and bearing capacity, broaden the application and research fields of steel columns, and greatly enrich the content of steel structures. Provide support for the development of the housing system and the transformation of achievements.

Description of drawings

Figure 1 is a schematic diagram of the structure of the structural column of the present invention.

2 is a schematic diagram of the cross-sectional structure of the first center column of the present invention.

FIG. 3 is a schematic diagram of the cross-sectional structure of the second center column of the present invention.

4 is a schematic diagram of the cross-sectional structure of the first side column of the present invention.

FIG. 5 is a schematic diagram of the cross-sectional structure of the second side column of the present invention.

6 is a schematic diagram of the cross-sectional structure of the first corner post of the present invention.

FIG. 7 is a schematic diagram of the cross-sectional structure of the second type of corner post of the present invention.

FIG. 8 is a structural schematic diagram of the full bolt joint connection between the structural column and the steel beam according to the present invention.

FIG. 9 is a structural schematic diagram of the connection of an externally connected structural column and a full-bolt joint of a steel beam according to the present invention.

FIG. 10 is a schematic diagram of the second structure of the full-bolt joint connection between the structural column and the steel beam according to the present invention.

FIG. 11 is a schematic diagram of the second structure of the full-bolt joint connection between the externally connected structural column and the steel beam according to the present invention.

Fig. 12 is a structural schematic diagram of the bolted joint connection between the structural column and the steel beam according to the present invention.

FIG. 13 is a schematic diagram of the second structure of the bolted joint connection between the structural column and the steel beam according to the present invention.

14 is a schematic diagram of the second structure of the bolted joint connection between the externally connected structural column and the steel beam according to the present invention.

Figure 15 is a schematic diagram of the third structure of the bolted joint connection between the structural column and the steel beam according to the present invention.

FIG. 16 is a schematic diagram of the third structure of the bolted joint connection between the externally connected structural column and the steel beam according to the present invention.

Fig. 17 is a structural schematic diagram of the fully welded joint connection between the structural column and the steel beam according to the present invention.

18 is a schematic diagram of the second structure of the fully welded joint connection between the structural column and the steel beam of the present invention.

19 is a schematic diagram of the second structure of the fully welded joint connection between the externally connected structural column and the steel beam according to the present invention.

FIG. 20 is a schematic diagram of the third structure of the all-welded joint connection between the structural column and the steel beam according to the present invention.

FIG. 21 is a schematic diagram of the third structure of the all-welded joint connection between the externally connected structural column and the steel beam according to the present invention.

FIG. 22 is a schematic diagram of the structure of the connection node between the structural column and the structural column according to the present invention.

FIG. 23 is a schematic cross-sectional view A-A of the fully bolted joint structure of the structural column and the structural column of the present invention.

FIG. 24 is a cross-sectional schematic diagram A-A of the bolted connection node structure between the structural column and the structural column of the present invention.

FIG. 25 is a cross-sectional schematic diagram A-A of the all-welded connection node structure of the structural column and the structural column of the present invention.

In the picture: 1.H-shaped steel, 2.T-shaped steel flange plate, 3.T-shaped steel web, 4. Long rib, 5. Short rib, 6.T-shaped steel connector, 7. Angle steel connector, 8. Bolt, 9. Steel beam, 10. Bolted connection plate, 11. Ear plate, 12. Welded joint, 13. Steel flange stiffening plate, 14. Column transverse stiffener, 15. Beam support, 16. Steel web stiffening plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Example 1: As shown in Figures 1 to 25, the prefabricated steel structure building special-shaped structural column and its connection method, including the structural column, the structural column includes H-shaped steel 1, T-shaped steel and stiffeners, and the stiffeners include Long ribs 4 and short ribs 5, the T-shaped steel includes a T-shaped steel web 3 and a T-shaped steel flange plate 2, and the T-shaped steel web 3 and the T-shaped steel flange plate 2 are perpendicular to each other, forming a T-shaped cross section. Shaped steel, the H-shaped steel includes an H-shaped steel web and two H-shaped steel flange plates, the H-shaped steel webs are respectively perpendicular to each of the H-shaped steel flange plates, forming an H-shaped steel with an "H"-shaped cross section, The end of the T-shaped steel web 3 away from the T-shaped steel flange plate is fixedly connected with the H-shaped steel web, and the H-shaped steel 1, the T-shaped steel web 3 and the T-shaped steel flange plate 2 together form an axial stress member , jointly bear the vertical load and horizontal load, the stiffener is located at the connection position of H-beam 1 and T-beam, the stiffener is equivalent to increasing the section height, section modulus, section moment of inertia and radius of gyration of the special-shaped column, reducing The slenderness ratio is improved, the utilization efficiency, bending rigidity and overall stable bearing capacity of the special-shaped column are improved, and the structural column is connected to the steel beam 9 .

Embodiment 2: On the basis of Embodiment 1, the stiffening rib is a structure with enhanced column stability, and channel steel can be selected. The opening of the channel steel is arranged toward the web, and the two adjacent long ribs 4 and short ribs 5 are perpendicular to each other. , a cylindrical structure is formed between the two flange plates of the H-beam 1 and the T-beam, which can significantly improve the torsional performance of the special-shaped column, and the stiffeners are arranged at intervals in the middle and end of the structural column.

Embodiment 3: On the basis of Embodiment 2, T-shaped steels are respectively fixed in the center of both sides of the web of the H-shaped steel 1 to form a middle column, the T-shaped steel web 3 is perpendicular to the H-shaped steel web, and the H-shaped steel in the middle column is vertical. Short ribs 5 are provided on both sides of the web, and long ribs 4 are respectively provided on both sides of each of the T-shaped steel webs.

On the basis of the third embodiment, the long ribs 4 are respectively arranged along the length direction of the T-shaped steel web 3, the ends are respectively perpendicular to the H-shaped steel web and the two T-shaped steel flange plates, and the openings face the T-shaped steel web. The web and the two T-shaped steel flange plates are welded and connected; the short ribs 5 are respectively arranged along the length of the H-shaped steel web, and the ends are perpendicular to the webs of the H-shaped steel flange plate and the long rib 4 respectively, and the openings face the H-shaped steel web. , welded with H-beam flange plate and long rib 4 web.

On the basis of the third embodiment, the short ribs 5 are respectively arranged along the length direction of the H-shaped steel web, the ends are respectively perpendicular to the H-shaped steel flange plate and the two T-shaped steel webs, the openings face the H-shaped steel web, and the H-shaped steel wings The flange plate and the two T-shaped steel webs are welded and connected; the long ribs 4 are respectively arranged along the length direction of the T-shaped steel web, and the ends are perpendicular to the webs of the T-shaped steel flange plate and the short rib 5 respectively, and the openings face the T-shaped steel web. Welded connection with T-section steel flange plate and short rib 5 web.

Embodiment 4: On the basis of Embodiment 2, the T-shaped steel is fixed in the center of one side of the web of the H-shaped steel 1 to form a side column, and the side of the H-shaped steel web in the side column that is not connected to the T-shaped steel is provided with long ribs and Short ribs 5 are provided on the other side, and long ribs 4 are respectively provided on both sides of the T-shaped steel web.

On the basis of the fourth embodiment, a long rib 4 is arranged on the side corresponding to the connecting side of the T-shaped steel and the H-shaped steel, the long rib 4 is arranged along the length of the H-shaped steel web, and the ends are respectively perpendicular to the two H-shaped steel flange plates, The opening faces the H-section steel web, and is welded and connected to the two flange plates of the H-section steel; long ribs 4 are respectively arranged on both sides of the T-section steel web along the length direction, and the ends of each long rib 4 are perpendicular to the H-section steel web and the T-section steel respectively. The flange plate, with the opening facing the T-shaped steel web, is welded to the H-shaped steel web and the T-shaped steel flange plate; short ribs 5 are arranged on the side of the H-shaped steel web connected to the T-shaped steel according to the length direction of the H-shaped steel web. The ends of the short ribs 5 are perpendicular to the H-shaped steel flange plates and the webs of the corresponding long ribs 4 respectively, and the openings face the H-shaped steel webs, and are welded to the H-shaped steel flange plates and the webs of several long ribs 4 .

On the basis of Example 4, a long rib 4 is provided on the side corresponding to the connecting side of the T-shaped steel and the H-shaped steel. The long rib 4 is arranged along the length of the H-shaped steel web, and the ends are respectively perpendicular to the two flange plates of the H-shaped steel. , the opening faces the H-shaped steel web, and is welded and connected with the two flange plates of the H-shaped steel; the side of the H-shaped steel web connected with the T-shaped steel is provided with short ribs 5 according to the length direction of the H-shaped steel web, and the ends of each short rib 5 are respectively Perpendicular to the H-section steel flange plate and the T-section steel web, the opening faces the H-section steel web, and is welded and connected with the H-section steel flange plate and the T-section steel web; the two sides of the T-section steel web are respectively provided with long ribs 4 along the length direction. The ends of the long ribs are respectively perpendicular to the webs of the corresponding short ribs 5 and the T-shaped steel flange plates, and the openings face the T-shaped steel webs, and the webs of the corresponding short ribs 5 and the T-shaped steel flange plates are welded and connected.

Embodiment 5: On the basis of Embodiment 2, a side of the H-shaped steel web near the end is provided with T-shaped steel in the transverse direction to form a corner column, and the H-shaped steel web in the corner column is not connected to the side of the T-shaped steel. Long ribs and short ribs 5 on the other side, long ribs 4 on both sides of the T-shaped steel web, long ribs 4 and H-shaped steel flanges on one side of the T-shaped steel web close to the H-shaped steel flange plate The inner side of the plate is attached to form an "L"-shaped angle steel with stiffening ribs.

On the basis of Embodiment 5, the end of the T-shaped steel web is welded on one side of the H-shaped steel web, and the T-shaped steel web is perpendicular to the H-shaped steel web; the corresponding side of the connection side of the H-shaped steel and the T-shaped steel is provided with long ribs 4 , the long rib 4 is usually arranged along the length of the H-shaped steel web, the ends are perpendicular to the two flange plates of the H-shaped steel, the openings face the H-shaped steel web, and are welded to the two flange plates of the H-shaped steel; T-shaped steel Long ribs are arranged on both sides of the web along the length direction, and the ends of each long rib are perpendicular to the H-section steel web and the T-section steel flange plate respectively, and the openings face the T-section steel web, which is different from the H-section steel web and T-section steel flange plate. Welded connection; the short ribs 5 are arranged along the length of the H-shaped steel web, the ends are perpendicular to the H-shaped steel flange plate and the web of the corresponding long rib 4, and the openings face the H-shaped steel web, which is connected with the H-shaped steel flange plate and the corresponding length. The web of the rib 4 is fixed by welding.

On the basis of Embodiment 5, the end of the T-shaped steel web is welded on one side of the H-shaped steel web, and the T-shaped steel web is perpendicular to the H-shaped steel web; the corresponding side of the connection side of the H-shaped steel and the T-shaped steel is provided with long ribs 4 , the long rib 4 is usually arranged along the length of the H-shaped steel web, the ends are perpendicular to the two flange plates of the H-shaped steel, the openings face the H-shaped steel web, and are welded to the two flange plates of the H-shaped steel; H-shaped steel The connection point with the T-shaped steel separates the H-shaped steel web into two spaces with different distances. The short rib 5 is set on the side where the distance between the H-shaped steel flange plate and the T-shaped steel web is smaller, and the long rib 4 is set on the other side. The long rib 4 and the short rib 5 are usually arranged along the length of the T-shaped steel web, respectively, and the ends are perpendicular to the H-shaped steel flange plate and the T-shaped steel web respectively, and the openings face the H-shaped steel web. The steel webs are welded and connected; long ribs 4 are respectively arranged on both sides of the T-shaped steel web along the length direction, and the ends of the long ribs 4 on both sides of the T-shaped steel web are perpendicular to the T-shaped steel flange plate and the corresponding long ribs 4 or 4 respectively. The web of the short rib 5, with the opening facing the T-shaped steel web, is welded and fixed with the T-shaped steel flange plate and the webs of the corresponding long ribs 4 and short ribs 5.

Embodiment 6, on the basis of the above-mentioned embodiments, the side column, the corner column and the central column are combined together to form a complete frame structure together with the steel beam, and the structural column and the structural column including the central column, the side column and the corner column are mutually connected. They are connected according to the frame structure combination, and the interconnected structural columns and the structural columns are fixed by welding, and the lugs 11, bolt connection plates 10 and bolts 8 are used for positioning before welding and fixing, and the lugs are cut off after the welding is completed. For the bolted connection plate, the specific implementation steps are as follows: firstly, the ear plate and the bolted connection plate are arranged in the connection section of the structural column, the structural column to be connected is fixed by bolts, then welded, and finally the ear plate and the bolted connection plate are removed.

Embodiment 7, on the basis of Embodiment 1, between the structural column and the steel beam 9, a T-shaped steel connecting piece 6 is arranged at the wing plate of the steel beam 9, and an angle steel connecting piece 7 is arranged at the web plate of the steel beam 9. to be fixed.

On the basis of the seventh embodiment, the structural column and the steel beam 9 are fixed by means of full bolt joints, that is, the components between the structural column and the steel beam 9 are fixed by using bolts 8 to connect. .

On the basis of the seventh embodiment, the structural column and the steel beam 9 are fixed by full welding, that is, the components between the structural column and the steel beam 9 are fixedly connected by welding, and the welding The resulting welded joint 12 is located at the edge of the part.

On the basis of the seventh embodiment, the structural column and the steel beam 9 are connected and fixed by bolted joints, that is, the components between the structural column and the steel beam 9 are connected by welding and using bolts. For fixing, the welded joint 12 formed by welding is located at the edge of the part.

Embodiment 8, on the basis of the above-mentioned embodiments, in the above-mentioned central column, side column and corner column, a column transverse stiffener 14 is set between the H-section steel 1 and the T-section steel web for local strengthening, and the column is The transverse stiffening rib 14 is in an "L" shape, and both sides are fixed on the T-shaped steel web and the H-shaped steel web by welding.

The ninth embodiment, a steel flange stiffening plate 13 is arranged between the T-shaped steel connector 6 and the structural column for local reinforcement, and the steel flange stiffening plate 13 is fixed to the structural column by bolting or welding. The resulting welded joint 12 is located at the edge of the part.

Embodiment 10, a beam support 15 is arranged between the steel beam 9 and the structural column, a steel web stiffening plate 16 is arranged between the beam support 15 and the steel beam 9, and the beam support 15 is connected to the Structural columns and steel beams 9 are fixed.

Among them, the column transverse stiffeners 14, the steel flange stiffeners 13 and the beam support 15 included in the eighth to tenth embodiments can all be combined and matched between the steel beam and the structural column, using the method described in the seventh embodiment. All bolted joints, all welded joints are fixed, and bolted joints are connected and fixed for connection.

The structural column is connected with the beam support to form an externally connected structural column.

The structural column is connected with the full-bolt node of the steel beam 9 , and is connected by bolts 8 through the T-shaped steel connecting piece 6 , the angle steel connecting piece 7 and the steel flange stiffening plate 13 .

The externally connected structural column is connected with the full bolt node of the steel beam 9. The structural column and the corbel 15 are connected by welding to form a welded joint 12. The steel beam 9 and the corbel 15 are bolted through the steel web stiffening plate 16. 8 connection, the connection part between the L-shaped column and the corbel 15 is partially strengthened by the channel steel 4 as the transverse stiffener of the column.

The second full-bolt joint connection between the structural column and the steel beam 9 is connected by bolts 8 through the T-shaped steel connector 6 and the angle steel connector 7, and the connection between the L-shaped column and the steel beam 9 is partially strengthened by the column transverse stiffener 14, and the column is laterally stiffened. The rib 14 is connected to the structural column by welding, and forms the welded joint 12 .

The externally connected structural column is connected with the full bolt node of the steel beam 9. The structural column and the corbel 15 are connected by welding to form a welded joint 12. The steel beam 9 and the corbel 15 are bolted through the steel web stiffening plate 16. 8 connection, the connection part between the L-shaped column and the corbel 15 is partially reinforced by the column transverse stiffener 14, and the column transverse stiffener 14 is connected with the structural column by welding.

The structural column is connected with the bolted joint of the steel beam 9. The bolts 8 are used to connect the angle steel connector 7 and the steel flange stiffening plate 13. The upper and lower flanges of the steel beam 9 and the T-shaped steel flange plate 2 of the structural column are They are connected by welding and form a welded joint 12 .

The structural column and the steel beam 9 are connected at the bolt welding node 2, and are connected by bolts 8 through the angle steel connector 7. The upper and lower flanges of the steel beam 9 and the T-shaped steel flange plate 2 of the structural column are connected by welding, and form a welded joint. The joints 12 and the connection between the L-shaped column and the steel beam 9 are partially reinforced by the column transverse stiffeners 14 , and the column transverse stiffeners 14 are connected with the structural columns by welding to form the welded joints 12 .

The externally connected structural column is connected to the bolted joint of the steel beam 9. Second, the structural column and the corbel 15 are connected by welding to form a welded joint 12. The steel beam 9 and the corbel 15 are bolted through the steel web stiffening plate 16. 8 Connection; the upper and lower flanges of the steel beam 9 and the corbel 15 are connected by welding, and form a welded joint 12, and the connecting part of the L-shaped column and the corbel 15 is partially strengthened by the column transverse stiffener 14, and the column transverse stiffener 14 It is connected with the structural column by welding, and a welded joint 12 is formed.

The bolted joint connection between the structural column and the steel beam 9 is connected by bolts 8 through the angle steel connector 7, and the upper and lower flanges of the steel beam 9 are connected with the T-shaped steel flange plate 2 of the structural column by welding, and form a welded connection. At the node 12, the connection part between the L-shaped column and the steel beam 9 is locally strengthened by the channel steel 4 as the column transverse stiffener.

The externally connected structural column is connected with the bolted joint of the steel beam 9. Third, the structural column and the corbel 15 are connected by welding to form a welded joint 12. The steel beam 9 and the corbel 15 are bolted through the steel web stiffening plate 16. 8 Connection; the upper and lower flanges of the steel beam 9 are connected with the corbel 15 by welding, and form a welded joint 12, and the connection part of the L-shaped column and the corbel 15 is locally strengthened by the channel steel 4 as the column transverse stiffener.

The structural column is connected with the fully welded joint of the steel beam 9. The upper and lower flanges of the steel beam 9 are connected with the T-shaped steel flange plate 2 of the structural column by welding, and a welded joint 12 is formed. The web of the steel beam 9 is connected by welding. The T-shaped steel flange plate 2 of the structural column is connected by welding, and a welded joint 12 is formed. The T-shaped steel flange plate 2 of the structural column is partially reinforced by the steel flange stiffening plate 13. The steel flange stiffening plate 13 and the structural column adopt They are connected by welding and form a welded joint 12 .

The second all-welded joint connection between the structural column and the steel beam 9, through the angle steel connector 7 and the structural column are connected by welding, and form a welded joint 12, the upper and lower flanges of the steel beam 9 and the T-shaped steel flange plate of the structural column 2. It is connected by welding and forms a welded joint 12. The connection part between the L-shaped column and the steel beam 9 is partially strengthened by the column transverse stiffener 14, and the column transverse stiffener 14 is connected with the structural column by welding to form a welded joint 12.

The externally connected structural column is connected with the fully welded joint of the steel beam 9. Second, the structural column and the corbel 15 are connected by welding to form a welded joint 12; the steel beam 9 is connected with the corbel 15 by welding, and a welded joint is formed. The joints 12 and the connection between the L-shaped column and the steel beam 9 are partially reinforced by the column transverse stiffeners 14 , and the column transverse stiffeners 14 are connected with the structural columns by welding to form the welded joints 12 .

The structural column is connected with the fully welded joint of the steel beam 9. Third, the angle steel connector 7 and the structural column are connected by welding to form a welded joint 12, the upper and lower flanges of the steel beam 9 and the T-shaped steel flange plate of the structural column. 2 It is connected by welding and forms a welded joint 12, and the connection part between the L-shaped column and the steel beam 9 is locally strengthened by the channel steel 4 as the transverse stiffener of the column.

The externally connected structural column is connected with the fully welded joint of the steel beam 9. Third, the structural column and the corbel 15 are connected by welding to form a welded joint 12. The steel beam 9 and the corbel 15 are connected by welding and form a welded joint. At the node 12, the connecting part of the L-shaped column and the corbel 15 is locally strengthened by the channel steel 4 as the transverse stiffener of the column.

Embodiment 11. The specific construction steps of the special-shaped column used in the prefabricated steel structure building of the present invention are: (1) In the factory, the H-shaped steel 1, the T-shaped steel flange plate 2, the T-shaped steel web plate 3, the long Rib 4, short rib 5, T-shaped steel connector 6, angle steel connector 7, bolt connection plate 10, ear plate 11, steel flange stiffening plate 13, column transverse stiffener 14, beam support 15, steel web stiffening plate 16 processed separately;

(2) Measure and lay out the line, and locate it accurately;

(3) Cutting and welding, assembling and forming;

(4) Protection of finished products and on-site delivery;

(5) On-site assembly and installation.

The technical effect of the present invention is that the building steel structure adopts the structural column in the form of an all-steel structure, which is at the leading level in China, changes the form that needs to be combined with concrete pouring to form a complete structural column in the traditional construction, avoids wet work in the on-site construction, and supports load-bearing It has the characteristics of high strength, good ductility and excellent seismic performance. At the same time, it is convenient for dismantling and recycling after the service life of the building, which is in line with the concept of green environmental protection. The structural column in the form of all-steel is provided with stiffeners, stiffening plates and other structures to enhance the strength of the structural column. , to ensure the safety of the steel structure, the section of the structural column formed by the stiffener in the form of connecting with the web has better mechanical properties and shear bearing capacity than the section form of the existing prefabricated steel structure building. High strength, good ductility and seismic performance, and excellent overall stability and bearing capacity.

The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the present invention. Without departing from the principles of the present invention, those skilled in the art can also make many modifications and improvements, which should also be regarded as the protection scope of the present invention.

Claims (10)

1. Prefabricated steel structure building special-shaped structural column and connection method thereof, including structural column, characterized in that, the structural column includes H-shaped steel (1), T-shaped steel and stiffeners, and the stiffeners include long ribs (4) and short ribs (5), the T-shaped steel includes a T-shaped steel web (3) and a T-shaped steel flange plate (2), the H-shaped steel includes an H-shaped steel web and an H-shaped steel flange plate, the T-shaped steel web The end of the plate (3) away from the T-shaped steel flange plate is fixedly connected with the H-shaped steel web, the stiffener is located at the connection position of the H-shaped steel (1) and the T-shaped steel, and the structural column is connected to the steel beam (9). 2. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 1, characterized in that, a column transverse stiffener (14) is arranged on the structural column, and the column transverse stiffener (14) is in the shape of a transverse stiffener (14). "L" shaped and fixed between the T-section steel web and the H-section steel web. 3. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 1, characterized in that, the center of the two sides of the H-shaped steel (1) web is respectively fixed with T-shaped steel to form a middle column, and the middle column is formed. Short ribs (5) are provided on both sides of the H-shaped steel webs in the middle, and long ribs (4) are respectively provided on both sides of the T-shaped steel webs. 4. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 1, characterized in that, the center of one side of the web of the H-shaped steel (1) is fixed with T-shaped steel to form a side column. One side of the H-shaped steel web not connected to the T-shaped steel is provided with long ribs and the other side is provided with short ribs (5), and long ribs (4) are respectively provided on both sides of the T-shaped steel web. 5. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 1, characterized in that, one side edge position of the H-shaped steel web is fixed to form a corner column, and the H-shaped steel web in the corner column is formed. One side of the plate not connected to the T-shaped steel is provided with long ribs and the other side is provided with short ribs (5). Long ribs (4) are respectively provided on both sides of the T-shaped steel web, and the T-shaped steel web is close to the H-shaped steel flange plate. The long rib (4) provided on one side of the H-shaped steel flange plate is attached to the inner side to form an "L"-shaped angle steel with stiffening ribs. 6. The prefabricated steel structure building special-shaped structural column and its connection method according to any one of claims 3-5, wherein the fixing method between the structural column and the structural column is: S1: Arrange the lug plate (11), the bolt connection plate (10) and the bolt (8) at the end of the structural column to be connected to the structural column for positioning; S2: Fix the structural column to be connected to the structural column by welding; S3: Cut the lug plate (11), the bolt connection plate (10) and the bolt (8) for positioning before welding to complete the connection of the structural column to the structural column. 7. The prefabricated steel structure building special-shaped structural column and its connection method according to any one of claims 1-5, wherein the structural column and the steel beam (9) pass through the steel beam (9) wing. A T-shaped steel connecting piece (6) is arranged at the plate, and an angle steel connecting piece (7) is arranged at the web of the steel beam (9) for fixing. 8. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 7, characterized in that a steel flange stiffening plate (13) is arranged between the T-shaped steel connector (6) and the structural column. 9. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 7, characterized in that a beam support (15) is arranged between the steel beam (9) and the structural column, and the beam support ( 15) A steel web stiffening plate (16) is arranged between the steel beam (9). 10. The prefabricated steel structure building special-shaped structural column and its connection method according to claim 1, characterized in that, the stiffening rib is channel steel and the opening of the channel steel is arranged toward the web, and two adjacent long ribs (4) perpendicular to the short ribs (5).

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