CN103882983B - The modular assembly formula steel construction prestressing force eccentrical braces that a kind of node has just connect - Google Patents

Abstract

The invention relates to a modularized multi-assembled steel structure prestressed eccentric support system which belongs to the technical field of structural engineering. The structural system is composed of assembled floor slabs, assembled prestressed eccentric supports and assembled flange columns using bolts; the assembled floor slabs can be spliced to a required scale, and bolts are used to splice the assembled floor slabs. The steel structure system of the present invention realizes factory production, completely uses high-strength bolts for on-site rapid assembly, avoids environmental pollution caused, and can be efficiently recycled when the structural components are dismantled, truly realizing the concept of green environmental protection. A green structural system.

Description

A prestressed eccentric bracing system of a modular assembled steel structure with rigid joints

technical field

The invention relates to a prestressed eccentric support system of a modular assembled steel structure with nodes rigidly connected, and belongs to the technical field of structural engineering.

Background technique

On January 1, 2013, the General Office of the State Council forwarded the "Green Building Action Plan" formulated by the National Development and Reform Commission and the Ministry of Housing and Urban-Rural Development with Guobanfa [2013] No. 1. It clearly stated in the important tasks stipulated that: Vigorously develop green building materials and promote the industrialization of construction. Housing, urban and rural construction and other departments are required to speed up the establishment of a standard system for the design, construction, and production of parts to promote industrialization of construction, promote the standardization of structural parts, parts, and components, enrich the types of standard parts, and improve versatility and replaceability. Promote construction systems such as prefabricated steel structures suitable for industrial production, accelerate the development of prefabrication and assembly technologies for construction projects, and improve the integration level of construction industrialization technology. Support the construction of industrialized bases that integrate design, production, and construction, and carry out demonstration and pilot projects of industrialized buildings. Prefabricated steel structure residences can better reflect the essence of green buildings. The "Green Building Action" provides a major opportunity for the innovation and industrialization of the corresponding system of steel structures in my country.

The problem with the existing modular multi-high-rise fabricated steel structure system in my country lies in the nodes connected by floor slabs and beams and columns. The rigid connection of nodes cannot be realized only by a limited number of high-strength bolts, which is not conducive to the stress of the structure. The splicing form adopted by the invention can effectively realize the rigid connection of the nodes and overcome the shortcomings of the existing system.

Contents of the invention

The invention proposes a modular assembly-type steel structure system with nodes rigidly connected, which belongs to the technical field of structural engineering.

Technical scheme of the present invention is as follows:

The modular multi-high-rise prefabricated steel structure system is composed of prefabricated floor slabs, prefabricated supports and prefabricated flange columns assembled with bolts; the beam-column nodes of the steel structure system are connected to the frame by welding in the factory , which can realize rigid connection; the prefabricated floor is composed of 6 types of prefabricated floors, namely A board, B board, C board, D board, E board and F board;

The A plate is composed of short main beam I1, short main beam II2, secondary beam I3, secondary beam II4, secondary beam III5, long main beam I6, column seat 7, connection plate I15, connection plate II16 and floor slab 17; All components of slab A are processed and manufactured in the factory, and then assembled into the new prefabricated floor A by welding and shear key connection; The connecting plate I15 connects the short main beam II2 and the secondary beam I3, and the short main beam II2 and the secondary beam I3 are connected to the square steel pipe I (12) of the column seat 7, and the two sides of the connecting plate I15 are connected to the short main beam respectively. The flanges of beam II2 and secondary beam I3 are connected, and two connecting plates I15 are respectively connected to the upper and lower flanges of the short main beam II2 and secondary beam I3, and all the connection parts are welded; the short main beam I1 and the short The main beam II2 is placed on the same straight line and connected by the column base 7, the short main beam I1 and the short main beam II2 are connected to the square steel pipe I (12) of the column base 7, and all the connection parts are welded; the secondary beam Ⅱ4 is parallel to the secondary beam Ⅰ3, perpendicular to the short main beam Ⅰ1 and short main beam Ⅱ2, connected to the short main beam Ⅰ1 and short main beam Ⅱ2 through the column base 7 and the connecting plate Ⅰ15, and connected to the square steel pipe I (12 ), the two sides of the connecting plate I15 are respectively connected to the flanges of the short main beam I1, the short main beam II2 and the secondary beam II4, and the two connecting plates I15 are respectively connected to the short main beam I1, the short main beam II2 and the On the upper and lower flanges of the secondary beam Ⅱ4, all the connection parts are welded; the secondary beam Ⅲ5 is parallel to the secondary beam Ⅱ4, perpendicular to the short main beam Ⅰ1 and short main beam Ⅱ2, and connected to the short main beam through the connecting plate Ⅰ15 The beam I1 is connected, and the three sides of the plate protruding from the short main beam I1 are connected with the upper and lower flanges and the web of the secondary beam III5, and the two sides of the connecting plate I15 are connected with the short main beam I1 and the secondary beam III5 respectively. The flanges are connected, and two connecting plates I15 are connected to the upper flange and the lower flange respectively, and all the connecting parts are welded; the long main beam I6 is parallel to the short main beam I1 and short main beam II2, and perpendicular to the secondary beam I3 is connected with the secondary beam I3, secondary beam II4 and secondary beam III5 through the connecting plate I15 and the connecting plate II16, the connecting plate II16 is located at the ends of the secondary beam I3 and Beam I3 is connected to the flange of secondary beam II4, one side is connected to the web of secondary beam I3, and the other side is connected to the web of long main beam I6, and the two sides of the connecting plate I15 are connected to the long main beam Ⅰ6, the flanges of secondary beam Ⅰ3, secondary beam Ⅱ4 and secondary beam Ⅲ5, and the connecting plate Ⅰ15 are respectively connected to the upper and lower flanges of the long main beam Ⅰ6, secondary beam Ⅰ3, secondary beam Ⅱ4 and secondary beam Ⅲ5, all All the connection parts are welded; the floor slab 17 is spliced on the plane surrounded by the short main beam I1, the short main beam II2, the secondary beam I3, the secondary beam II4, the secondary beam III5 and the long main beam I6 by using shear keys;

The B-board is composed of secondary beam II4, long main beam I6, long main beam II8, secondary beam IV9, secondary beam V10, connecting plate I15, connecting plate II16 and floor 17; all components of the B-plate are processed in the factory After the fabrication is completed, each component is assembled into the prefabricated floor B by welding and shear key connections; the long main beam I6, the secondary beam IV9, and the secondary beam V10 are placed vertically, and the two The long main beam I6 is connected with the secondary beam IV9 and the secondary beam V10 at the ends of the beams to form a rectangular frame. one side is connected with the web of secondary beam IV9 and secondary beam V10, the other side is connected with the web of long main beam I6, and the two sides of the connecting plate I15 are respectively connected with long main beam I6 and secondary The flanges of beam IV9, long main beam I6 and secondary beam V10 are connected, and two connecting plates I15 are set to connect respectively to the upper and lower flanges of long main beam I6 and secondary beam IV9, long main beam I6 and secondary beam V10 Above, all the connection parts are welded; the long main beam II8 is parallel to the long main beam I6, and placed vertically with the secondary beam V10, the long main beam II8 is located in the middle of the two long main beams I6, and the long main beam II8 The two ends are respectively connected to the middle parts of the secondary beam IV9 and the secondary beam V10 through the connecting plate I15, and the two sides of the connecting plate I15 are respectively connected with the long main beam II8 and the secondary beam IV9, the long main beam II8 and the secondary beam V10 The flanges are connected, and the two end extensions of the long main beam Ⅱ8 are respectively connected with the middle webs of the secondary beams Ⅳ9 and Ⅴ10, and the two connecting plates Ⅰ15 are connected to the long main beam Ⅱ8, secondary beam Ⅳ9 and On the upper flange and the lower flange of the secondary beam V10, all the connection parts are welded; the secondary beam II4 is parallel to the secondary beam V10, placed vertically with the long main beam I6 and the long main beam II8, and connected by the connecting plate I15 The beam end of the secondary beam II4 is connected to the middle of the long main beam I6 and the long main beam II8, and the two sides of the connecting plate I15 at the end connecting the secondary beam II4 and the long main beam I6 are respectively connected to the wings of the secondary beam II4 and the long main beam I6. The two connecting plates I15 are connected to the upper and lower flanges of the secondary beam II4 and the long main beam I6 respectively, and the two sides of the connecting plate I15 at the end of the secondary beam II4 and the long main beam II8 are respectively It is connected with the flanges of the secondary beam Ⅱ4 and the long main beam Ⅱ8, and the two connecting plates Ⅰ15 are respectively connected to the upper and lower flanges of the secondary beam Ⅱ4 and the long main beam Ⅱ8, and the protruding parts at both ends of the secondary beam Ⅱ4 It is connected with the middle web of the long main beam I6 and the long main beam II8, and all the connection parts are welded; the floor 17 is spliced by the secondary beam II4, the long main beam I6, the long main beam II8, the secondary On the frame surrounded by Ⅳ9 and secondary beam Ⅴ10;

The C plate is composed of short main beam I1, short main beam II2, secondary beam I3, secondary beam II4, long main beam I6, column seat 7, secondary beam V10, connection plate I15, connection plate II16 and floor slab 17; All the components of the C slab are processed and manufactured in the factory, and then assembled into the new prefabricated floor C by welding and shear key connections; Connected, connected on the square steel pipe I (12) of the column base 7, as two opposite sides of the rectangular prefabricated floor C, all connections are welded; the long main beam I6 and the secondary beam I3 are vertically placed, as The other two opposite sides of the C-plate of the rectangular prefabricated floor are all connected by welding; the four sides of the C-plate are connected through the connecting plate I15 and the connecting plate II16 to form a rectangular frame, and the two sides of the connecting plate I15 are respectively It is connected with the flanges of the long main beam I6 and the secondary beam I3, and two connecting plates I15 are respectively connected to the upper and lower flanges of the long main beam I6 and the secondary beam I3. All the connection parts are welded, and the connection Plate II16 is located at the end where the secondary beam I3 is connected to the long main beam I6. The upper and lower ends of the connecting plate II16 are connected to the flange of the secondary beam I3, and one side is connected to the web of the secondary beam I3. All the connection parts are welded One end of short main beam I1, short main beam II2 and two secondary beams II4 are respectively connected to the four sides of column base 7, short main beam I1, short main beam II2 and two secondary beams II4 are connected to column base 7 On the square steel pipe I12, the two short main beams are on a straight line, the two secondary beams are on a straight line, the column seat 7 is located in the center of the C plate, and the adjacent short main beams and secondary beams are connected through the connecting plate I15. The two sides of the connecting plate I15 are respectively connected to the flanges of the short main beam I1 and the secondary beam II4, and the connecting plate I15 is respectively connected to the upper and lower flanges of the short main beam I1 and the secondary beam II4. The other end of the short main beam I1 is connected to the middle of the secondary beam V10, and the three sides of the protruding part of the short main beam I1 are respectively connected to the flange and web of the secondary beam V10, and the short main beam I1 is connected to the secondary beam through the connecting plate I15. The sides of the beam V10 are connected, and the two sides of the connecting plate I15 are respectively connected with the flanges of the short main beam I1 and the secondary beam V10, and the connecting plate I15 is respectively connected to the upper and lower flanges of the short main beam I1 and the secondary beam V10, All the connection parts are welded. The other end of the short main beam II2 is connected to the two secondary beams I3 through the column base 7 and the connecting plate I15, and connected to the square steel pipe I (12) of the column base 7. The connecting plate The two sides of I15 are respectively connected with the flanges of the short main beam II2 and the secondary beam I3, and the connecting plate I15 is respectively connected with the upper and lower flanges of the short main beam II2 and the secondary beam I3, and all the connection parts are welded , the other end of the secondary beam II4 is connected to the middle part of the long main beam I6, and the connecting plate I15 is used for connection. The two sides of the plate I15 are respectively connected with the flanges of the secondary beam II4 and the long main beam I6, and the connecting plate I15 is respectively connected with the upper flange and the lower wing of the secondary beam II4 and the long main beam I6 On the edge, all the connection parts are welded; the floor 17 is spliced on the frame surrounded by the short main beam I1, the short main beam II2, the secondary beam I3, the secondary beam II4 and the long main beam I6 by using shear keys;

The D plate is composed of short main beam I1, secondary beam II4, secondary beam III5, long main beam I6, column seat 7, connection plate I15, connection plate II16 and floor slab 17; all components of the D plate are processed in the factory After the fabrication is completed, each component is assembled into the new prefabricated floor D by welding and shear key connection; the short main beam I1 and the secondary beam III5 are placed vertically, and the short main beam I1 and the secondary beam III5 are connected through the connecting plate I15. connection, the protruding part of the short main beam I1 is connected to the end web of the secondary beam III5, and the two sides of the connecting plate I15 are respectively connected to the flanges of the short main beam I1 and the secondary beam III5, and the two connecting plates I15 They are respectively connected to the upper flange and the lower flange, and all the connection parts are welded; the two short main beams I1 are placed on the same straight line and connected by the column base 7, and the two short main beams I1 are connected to the column base 7 On the square steel pipe Ⅰ12, all the connection parts are welded; the secondary beam Ⅱ4 is parallel to the secondary beam Ⅲ5, perpendicular to the two short main beams Ⅰ1, connected to the two short main beams Ⅰ1 through the column base 7 and the connecting plate Ⅰ15, Connected to the square steel pipe I12 of the column base 7, the two sides of the connecting plate I15 are respectively connected to the flanges of the two short main beams I1 and the secondary beam II4, and the connecting plate I15 is respectively connected to the two short main beams I1 and On the upper and lower flanges of the secondary beam II4, all the connection parts are welded; the long main beam I6 is parallel to the two short main beams I1, perpendicular to the secondary beam II4, and connected to the The secondary beam II4 and the secondary beam III5 at both ends are connected, the connecting plate II16 is located at the ends of the secondary beam II4 and the secondary beam III5, the upper and lower ends of the connecting plate II16 are connected with the flanges of the secondary beam II4 and the secondary beam III5, and one side One side is connected to the web of secondary beam II4 and secondary beam III5, and the other side is connected to the web of long main beam I6, and the two sides of the connecting plate I15 are connected to long main beam I6, secondary beam II4 and secondary beam III5 The flanges of the main girder I15 are respectively connected to the upper and lower flanges of the long main girder I6, secondary girder II4, and secondary girder III5, and the middle web of the long main girder I6 is connected to the protruding part of the secondary girder II4. All the connection parts are welded; the floor 17 is spliced on the frame surrounded by the short main beam I1, the secondary beam II4, the secondary beam III5 and the long main beam I6 by using shear keys;

The E-board is composed of the secondary beam II4, the long main beam I6, the long main beam II8, the secondary beam V10, the connection plate I15, the connection plate II16 and the floor 17; The components are assembled into a prefabricated floor E by welding and shear key connections; the long main beam I6 and the secondary beam V10 are placed vertically, and the long main beam I6 and the secondary beam V10 are placed at the end of the beam through the connecting plate I15 and the connecting plate II16 Connect to form a rectangular frame, the connecting plate II16 is located at the end of the secondary beam, the upper and lower ends of the connecting plate II16 are connected to the flange of the secondary beam V10, one side is connected to the web of the secondary beam V10, and the other side is connected to the web of the secondary beam V10 The long main beam I6 is connected with the web, and the two sides of the connecting plate I15 are respectively connected with the flanges of the long main beam I6 and the secondary beam V10. On the flange and the lower flange, all the connection parts are welded; the long main beam II8 is parallel to the long main beam I6, placed perpendicular to the secondary beam V10, and the long main beam II8 is located in the middle of the two long main beams I6 , the two ends of the long main beam II8 are respectively connected to the middle part of the secondary beam V10 through the connecting plate I15, and the two sides of the connecting plate I15 are respectively connected with the flanges of the long main beam II8 and the secondary beam V10, and the long main beam The protruding parts of the two ends of II8 are connected to the middle webs of the secondary beam V10 at both ends, and the connecting plate I15 is connected to the upper and lower flanges of the long main beam II8 and secondary beam V10 respectively. All are welded; the secondary beam II4 is parallel to the secondary beam V10, placed vertically with the long main beam I6 and the long main beam II8, and the beam end of the secondary beam II4 is connected to the long main beam I6 and the long main beam II8 through the connecting plate I15 The two sides of the connecting plate I15 at the end connecting the secondary beam II4 and the long main beam I6 are respectively connected to the flanges of the secondary beam II4 and the long main beam I6, and the set connecting plate I15 is connected to the secondary beam II4 and the long main beam respectively. On the upper and lower flanges of beam I6, the two sides of the connecting plate I15 at the end where the secondary beam II4 is connected to the long main beam II8 are respectively connected to the flanges of the secondary beam II4 and the long main beam II8, and two connecting plates are set Ⅰ15 is respectively connected to the upper and lower flanges of the secondary beam Ⅱ4 and the long main beam Ⅱ8. The connection parts are all welded; the floor 17 is spliced on the frame surrounded by the secondary beam II4, the long main beam I6, the long main beam II8 and the secondary beam V10 by using shear keys;

The F-slab is composed of short main beam I1, secondary beam II4, long main beam I6, column base 7, secondary beam V10, connection plate I15, connection plate II16 and floor slab 17; all components of the F-slab are processed in the factory After the fabrication is completed, each component is assembled into a prefabricated floor F by welding and shear key connection; the long main beam I6 and the secondary beam V10 are placed vertically, and the long main beam I6 and the secondary beam V10 are connected through the connecting plate I15 and the connecting plate II16 Connect at the end of the beam to form a rectangular frame, the connecting plate II16 is located at the end of the secondary beam, the upper and lower ends of the connecting plate II16 are connected with the flange of the secondary beam V10, and one side is connected with the web of the secondary beam V10, The other side is connected to the web of the long main beam I6, and the two sides of the connecting plate I15 are respectively connected to the flanges of the long main beam I6 and the secondary beam V10, and the set connecting plate I15 is respectively connected to the long main beam I6 and the secondary On the upper and lower flanges of beam V10, all the connection parts are welded; one end of two short main beams I1 and two secondary beams II4 are respectively connected to the four sides of column base 7, and the two short main beams Ⅰ1 and two secondary beams Ⅱ4 are connected to the square steel pipe Ⅰ12 of the column base 7, the two short main beams are on a straight line, the two secondary beams are on a straight line, the column base 7 is located in the center of the F plate, and the adjacent short The main beam and the secondary beam are connected through the connecting plate I15, the two sides of the connecting plate I15 are respectively connected to the flanges of the short main beam I1 and the secondary beam II4, and the connecting plate I15 is connected to the short main beam I1 and the secondary beam respectively. On the upper and lower flanges of the beam II4, the other end of the short main beam I1 is connected to the middle part of the secondary beam V10, and the three sides of the protruding part of the short main beam I1 are respectively connected to the flange and the web of the middle part of the secondary beam V10. Plate connection, the short main beam I1 is connected to the secondary beam V10 through the connecting plate I15, the two sides of the connecting plate I15 are respectively connected to the flanges of the short main beam I1 and the secondary beam V10, and the connecting plate I15 is connected to the upper flange and the lower flange respectively. On the flange, the other end of the secondary beam II4 is connected to the middle part of the long main beam I6, and the connecting plate I15 is used for connection. The three sides of the protruding part of the secondary beam II4 are respectively connected to the flange and web Plate connection, the two sides of the connecting plate I15 are respectively connected with the flanges of the secondary beam II4 and the long main beam I6, and the connecting plate I15 is respectively connected with the upper and lower flanges of the secondary beam II4 and the long main beam I6, all The connection parts are all welded; the floor 17 is spliced on the frame surrounded by the short main beam I1, the secondary beam II4, the long main beam I6, the column base 7, and the secondary beam V10 by using shear keys;

The prefabricated floor plate A is spliced with the prefabricated floor plate B, and the splicing method is to splice the long main beam I6 of the A plate and the long main beam I6 of the B plate, and all the splicing uses bolts for on-site splicing; The prefabricated floor plate B is spliced with the prefabricated floor plate C, and the splicing method is to splice the long main beam I6 of the B plate and the long main beam I6 of the C plate, and all the splicing uses bolts for on-site splicing; The prefabricated floor board D is spliced with the prefabricated floor E board, and the splicing method is to splice the long main beam I6 of the D board and the long main beam I6 of the E board, and the prefabricated floor E board and the The prefabricated floor F-slab is spliced, and the splicing method is to splice the long main beam I6 of the E-slab and the long main beam I6 of the F-slab. All the splicing uses bolts for on-site splicing; The D-slab of the prefabricated floor is spliced, and the splicing method is to splice the secondary beam V10 of the A-slab and the secondary beam V10 of the D-slab, and all the splicing uses bolts for on-site splicing; The E board is spliced, the splicing method is to splice the secondary beam V10 of the B board and the secondary beam V10 of the E board, and the prefabricated floor C board is spliced with the prefabricated floor F board, and the splicing method is to splice the C board Secondary beam Ⅴ10 and secondary beam Ⅴ10 of F-slab are spliced, and all the splicing is carried out on-site with bolts;

The basic constituent units of the prefabricated floor system are A board, B board, C board, D board, E board and F board; the two ends of the prefabricated floor system in the horizontal direction are A board and D board, B board and C board The boards are spliced together to form a module, which can be spliced with each other. According to the area required by the building, the number of this module can be increased to splice with the A board; the E board and the F board can be spliced together to form another module, and the modules can be spliced with each other , according to the area required by the building, increase the number of this module to splice with the D board; the two ends of the prefabricated floor system in the longitudinal direction are A board, B board and C board, and the middle module composed of D board, E board and F board is added , splicing to increase the building area; realize modular splicing;

The column seat 7 is made up of two flange plates 11 and a square steel pipe I12, the two flange plates 11 are respectively located on the two ends of the square steel pipe I12, and all connections are welded; the flange column 13 is composed of A square steel pipe II14 and two flange plates 11 are formed, and the two flange plates 11 are respectively located on the two ends of the square steel pipe II14, and all connections are welded; the flange column 13 is connected with the column seat 7, A steel frame structure system is formed, and all connections are bolted.

The short main beam I1, the short main beam II2, the secondary beam I3, the secondary beam II4, the long main beam II8, and the secondary beam IV9 are H-shaped steel, or the equivalent H-shaped steel formed by splicing two channel steels back to back, or The equivalent H-shaped steel spliced by two T-shaped steels, or the equivalent H-shaped steel spliced by four angle steels; the secondary beam III5, the long main beam I6, and the secondary beam V10 are channel steels, or two angle steels Spliced equivalent channel steel.

All the beams are shaped steel beams, or honeycomb steel beams with openings at the webs of the beams, which are convenient for various pipelines to pass through.

The assembled prestressed oblique support proposed by the present invention is composed of ear plates and prestressed oblique rods. The lugs are directly welded to the corresponding components of the floor in the factory. During on-site construction, the prestressed oblique rods and lugs are assembled. Forming a prestressed oblique support; the lugs include node lugs and eccentrically supported beam lugs; the node lugs are located at the connection between the column base and the beam, one side is connected to the flange of the beam, and the other side is connected to the square of the column base Steel pipes, all connections are welded; the eccentrically supported beam lugs are welded on the flange of the beam, and welded at different positions of the beam according to different forms of eccentrically supported.

In the modularized multi-story fabricated steel structure system proposed by the present invention, the fabricated flange column and the fabricated column base are all processed and manufactured in a factory, and then each component is connected by bolts to assemble the fabricated floor slab.

Description of drawings

Fig. 1 is the splicing plane layout diagram of the assembled floor slab of the present invention

Fig. 2 is the schematic diagram of prefabricated floor A plate of the present invention

Fig. 3 is the unit exploded view of prefabricated floor A plate of the present invention

Fig. 4 is the schematic diagram of the prefabricated floor B board of the present invention

Fig. 5 is the unit exploded view of the prefabricated floor B board of the present invention

Fig. 6 is the schematic diagram of the prefabricated floor C plate of the present invention

Fig. 7 is the unit exploded view of the prefabricated floor C plate of the present invention

Fig. 8 is the schematic diagram of the prefabricated floor D plate of the present invention

Fig. 9 is a unit exploded view of the prefabricated floor D board of the present invention

Fig. 10 is the schematic diagram of the prefabricated floor E board of the present invention

Fig. 11 is the unit exploded view of the prefabricated floor E board of the present invention

Fig. 12 is the schematic diagram of the prefabricated floor F board of the present invention

Fig. 13 is the unit exploded view of the prefabricated floor F board of the present invention

Fig. 14 is an exploded view of the assembled floor column base unit of the present invention

Fig. 15 is an exploded view of the assembled flange column unit of the present invention

Figure 16 is a schematic diagram of the opening of the beam in the prefabricated floor slab of the present invention

Fig. 17 is a schematic diagram of the node ear plate of the present invention

Fig. 18 is a schematic diagram of splicing joint lugs and prestressed oblique rods of the present invention

Fig. 19 is a schematic diagram of the ear plate of the prestressed eccentric support beam of the present invention

Figure 20 is a schematic diagram of the splicing of the prestressed eccentric support beam ear plate and the prestressed oblique rod of the present invention

Figure 21 is a schematic diagram of the prestressed eccentric support form of the present invention

Fig. 22 is an assembly rendering of the present invention

Among them: 1—short main beam Ⅰ, 2—short main beam Ⅱ, 3—secondary beam Ⅰ, 4—secondary beam Ⅱ, 5—secondary beam Ⅲ, 6—long main beam Ⅰ, 7—column seat, 8—long main beam Beam II, 9—secondary beam IV, 10—secondary beam V, 11—flange plate, 12—square steel pipe I, 13—flange column, 14—square steel pipe II, 15—connection plate I, 16—connection plate II , 17—floor slab, 18—node ear plate, 19—eccentric support beam ear plate, 20—prestressed prestressed oblique rod.

detailed description

The present invention is described in detail below in conjunction with accompanying drawing:

As shown in accompanying drawing 1, in the prestressed eccentric support system of the modular prefabricated steel structure proposed by the present invention, the modular multi-high-rise prefabricated steel structure system consists of a prefabricated floor slab, a prefabricated support and a prefabricated The flange column is assembled by bolts; the basic components of the prefabricated floor system are A board, B board, C board, D board, E board and F board.

As shown in Figure 2 and Figure 3, the A-plate is composed of short main beam I1, short main beam II2, secondary beam I3, secondary beam II4, secondary beam III5, long main beam I6, column base 7, connecting plate I15 , connecting plate II16 and floor 17; all the components of the A plate are processed and manufactured in the factory, and then each component is assembled into the new prefabricated floor A through welding and shear key connection. The short main beam II2 and the secondary beam I3 are placed vertically, and the short main beam II2 and the secondary beam I3 are connected through the column base 7 and the connecting plate I15, and the short main beam II2 and the secondary beam I3 are connected to the square steel pipe I12 of the column base 7 , the two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the short main beam II2 and the secondary beam I3, and all the connection parts are welded; the short main beam I1 and the short main beam II2 are placed on the same straight line, Connected through the column base 7, the short main beam I1 and the short main beam II2 are connected to the square steel pipe I12 of the column base 7, and all the connection parts are welded; the secondary beam II4 is parallel to the secondary beam I3, and the short main beam I1 and The short main beam II2 is vertical, connected to the short main beam I1 and the short main beam II2 through the column base 7 and the connecting plate I15, and connected to the square steel pipe I12 of the column base 7. The two sides of the connecting plate I15 are connected to the short main beam respectively. The upper and lower flanges of beam Ⅰ1, short main beam Ⅱ2 and secondary beam Ⅱ4 are connected, and all the connection parts are welded; secondary beam Ⅲ5 is parallel to secondary beam Ⅱ4, perpendicular to short main beam Ⅰ1 and short main beam Ⅱ2, and passes through the connecting plate I15 is connected with the short main beam I1, and the three sides of the plate protruding from the short main beam I1 are connected with the upper and lower flanges and the web of the secondary beam III5, and the two sides of the connecting plate I15 are respectively connected with the short main beam I1 and The upper and lower flanges of the secondary beam Ⅲ5 are connected, and all the connecting parts are welded; the long main beam Ⅰ6 is parallel to the short main beam Ⅰ1 and short main beam Ⅱ2, and perpendicular to the secondary beam Ⅰ3. Beam I3, secondary beam II4 and secondary beam III5 are connected, the connecting plate II16 is located at the ends of secondary beam I3 and secondary beam II4, and the upper and lower ends of connecting plate II16 are connected with the flanges of secondary beam I3 and secondary beam II4. One side is connected to the web of the secondary beam I3, and the other side is connected to the web of the long main beam I6, and the two sides of the connecting plate I15 are connected to the long main beam I6, the secondary beam I3, the secondary beam II4 and the secondary beam For the upper and lower flanges of Ⅲ5, all the connection parts are welded; the floor 17 is spliced by the short main beam Ⅰ1, the short main beam Ⅱ2, the secondary beam Ⅰ3, the secondary beam Ⅱ4, the secondary beam Ⅲ5 and the long main beam Ⅰ6 by using shear keys. on the enclosed plane.

As shown in accompanying drawing 4 and accompanying drawing 5, said B board is made up of secondary beam II4, long main beam I6, long main beam II8, secondary beam IV9, secondary beam V10, connecting plate I15, connecting plate II16 and floor slab 17; All the components of the B-slab are processed and manufactured in the factory, and then assembled into the prefabricated floor B by welding and shear key connections. The long main beam I6, the secondary beam IV9, and the secondary beam V10 are placed vertically, and the two long main beams I6, secondary beam IV9, and secondary beam V10 are connected at the ends of the beams through the connecting plate I15 and the connecting plate II16 to form a rectangular frame. The connecting plate II16 is located at the end of the secondary beam IV9, the upper and lower ends of the connecting plate II16 are connected with the flanges of the secondary beam IV9 and V10, one side is connected with the webs of the secondary beam IV9 and V10, and the other The side is connected with the web of the long main beam I6, and the two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the long main beam I6 and the secondary beam IV9, and the long main beam I6 and the secondary beam V10. All the connection parts are Welding; the long main beam Ⅱ8 is parallel to the long main beam Ⅰ6, placed vertically with the secondary beam Ⅴ10, the long main beam Ⅱ8 is located in the middle of the two long main beams Ⅰ6, and the two ends of the long main beam Ⅱ8 respectively pass through the connecting plate I15 is connected to the middle of secondary beam IV9 and secondary beam V10, and the two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of long main beam II8 and secondary beam IV9, long main beam II8 and secondary beam V10, and the long main beam The two end protruding parts of II8 are respectively connected with the middle webs of the secondary beam IV9 and V10, and all the connection parts are welded; the secondary beam II4 is parallel to the secondary beam V10, and the long main beam I6 and the long The main beam Ⅱ8 is placed vertically, and the beam end of the secondary beam Ⅱ4 is connected to the middle part of the long main beam Ⅰ6 and the long main beam Ⅱ8 through the connecting plate Ⅰ15, and the two sides of the connecting plate Ⅰ15 at the end connecting the secondary beam Ⅱ4 and the long main beam Ⅰ6 are respectively It is connected with the flanges of the secondary beam II4 and the long main beam I6, and the two connecting plates I15 are respectively connected to the upper and lower flanges of the secondary beam II4 and the long main beam I6, and the secondary beam II4 is connected to the long main beam II8 The two sides of the connecting plate Ⅰ15 connected at one end are respectively connected with the upper and lower flanges of the secondary beam Ⅱ4 and the long main beam Ⅱ8, and the protruding parts at both ends of the secondary beam Ⅱ4 are connected with the middle webs of the long main beam Ⅰ6 and the long main beam Ⅱ8 , all connection parts are welded; floor 17 is spliced on the frame surrounded by secondary beam II4, long main beam I6, long main beam II8, secondary beam IV9, and secondary beam V10 by using shear keys.

As shown in accompanying drawings 6 and 7, the C plate is composed of short main beam I1, short main beam II2, secondary beam I3, secondary beam II4, long main beam I6, column base 7, secondary beam V10, connecting plate I15 , connection plate II16 and floor 17; all components of the C plate are processed and manufactured in the factory, and then each component is assembled into the new prefabricated floor C by welding and shear key connection. The two secondary beams I3 are placed on the same straight line, connected through the column base 7, and connected to the square steel pipe I (12) of the column base 7, as two opposite sides of the rectangular prefabricated floor plate C, all connections are For welding; the long main beam I6 and the secondary beam I3 are vertically placed as the other two opposite sides of the C-plate of the rectangular prefabricated floor, and all connections are welded; the four sides of the C-plate are connected through the connecting plate I15 and the connecting plate II16 Connect to form a rectangular frame. The two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the long main beam I6 and the secondary beam I3. All the connecting parts are welded. The connecting plate II16 is located between the secondary beam I3 and the One end of the long main beam I6 is connected, the upper and lower ends of the connecting plate II16 are connected with the flange of the secondary beam I3, and one side is connected with the web of the secondary beam I3, and all the connection parts are welded; the short main beam I1, the short One end of the main beam II2 and two secondary beams II4 are respectively connected to the four sides of the column base 7, and the short main beam I1, the short main beam II2 and the two secondary beams II4 are connected to the square steel pipe I (12) of the column base 7 Above, the two short main beams are on a straight line, the two secondary beams are on a straight line, the column seat 7 is located in the center of the C plate, and the adjacent short main beams and secondary beams are connected through the connecting plate I15, said The two sides of the connection plate I15 are respectively connected with the upper and lower flanges of the short main beam I1 and the secondary beam II4, the other end of the short main beam I1 is connected to the middle of the secondary beam V10, and the three sides of the protruding part of the short main beam I1 They are respectively connected to the flange and web of the secondary beam V10, the short main beam I1 is connected to the edge of the secondary beam V10 through the connecting plate I15, and the two sides of the connecting plate I15 are respectively connected to the upper and lower flanges of the short main beam I1 and the secondary beam V10 All the connecting parts are welded, the other end of the short main beam II2 is connected to the two secondary beams I3 through the column base 7 and the connecting plate I15, connected to the square steel pipe I12 of the column base 7, and the connecting plate I15 The two side faces of the short main beam II2 and the upper and lower flanges of the secondary beam I3 are respectively connected, all the connection parts are welded, and the other end of the secondary beam II4 is connected to the middle of the long main beam I6, and the connecting plate I15 is used for The three sides of the protruding part of the secondary beam II4 are respectively connected with the flange and web of the long main beam I6, and the two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the secondary beam II4 and the long main beam I6. The connection parts are all welded; the floor 17 is spliced on the frame surrounded by short main beam I1, short main beam II2, secondary beam I3, secondary beam II4 and long main beam I6 with shear keys.

As shown in accompanying drawing 8 and accompanying drawing 9, described D plate is made up of short main beam I1, secondary beam II4, secondary beam III5, long main beam I6, column seat 7, connecting plate I15, connecting plate II16 and floor slab 17; All the components of the D-slab are processed and manufactured in the factory, and then assembled into the new prefabricated floor D by welding and shear key connections. The short main beam I1 and the secondary beam III5 are placed vertically, and the short main beam I1 and the secondary beam III5 are connected through the connecting plate I15, and the protruding part of the short main beam I1 is connected with the end web of the secondary beam III5. The two sides of the plate I15 are respectively connected with the upper and lower flanges of the short main beam I1 and the secondary beam III5, and all the connection parts are welded; A short main beam I1 is connected to the square steel pipe I12 of the column base 7, and all the connection parts are welded; the secondary beam II4 is parallel to the secondary beam III5, perpendicular to the two short main beams I1, and passes through the column base 7 and the connecting plate I15 is connected to two short main beams I1 and connected to the square steel pipe I12 of column base 7. The two sides of the connecting plate I15 are respectively connected to the upper and lower flanges of two short main beams I1 and secondary beam II4. The connection parts are all welded; the long main beam I6 is parallel to the two short main beams I1 and perpendicular to the secondary beam II4, and is connected to the secondary beam II4 and secondary beam III5 at both ends through the connecting plate I15 and the connecting plate II16. Plate II16 is located at the end of secondary beam II4 and secondary beam III5, the upper and lower ends of connecting plate II16 are connected with the flanges of secondary beam II4 and secondary beam III5, one side is connected with the web of secondary beam II4 and secondary beam III5, and the other One side is connected to the web of the long main beam I6, the two sides of the connecting plate I15 are connected to the upper and lower flanges of the long main beam I6, the secondary beam II4 and the secondary beam III5, and the middle web of the long main beam I6 is connected to the secondary The protruding part of the beam II4 is connected, and all the connecting parts are welded; the floor 17 is spliced on the frame surrounded by the short main beam I1, the secondary beam II4, the secondary beam III5 and the long main beam I6 by using shear keys.

As shown in accompanying drawing 10 and accompanying drawing 11, described E plate is made up of secondary beam II4, long main beam I6, long main beam II8, secondary beam V10, connecting plate I15, connecting plate II16 and floor slab 17; All the components are processed and manufactured in the factory, and then assembled into a prefabricated floor E through welding and shear key connections. The long main beam I6 and the secondary beam V10 are vertically placed, and the long main beam I6 and the secondary beam V10 are connected at the end of the beam through the connecting plate I15 and the connecting plate II16 to form a rectangular frame. The connecting plate II16 is located at the end of the secondary beam The upper and lower ends of the connecting plate II16 are connected to the flange of the secondary beam V10, one side is connected to the web of the secondary beam V10, and the other side is connected to the web of the long main beam I6, and the two sides of the connecting plate I15 They are respectively connected to the upper and lower flanges of the long main beam I6 and the secondary beam V10, and all the connection parts are welded; the long main beam II8 is parallel to the long main beam I6, placed perpendicular to the secondary beam V10, and the long main beam II8 is located on the two sides. In the middle of the long main beam I6, the two ends of the long main beam II8 are respectively connected to the middle of the secondary beam V10 through the connecting plate I15, and the two sides of the connecting plate I15 are respectively connected to the long main beam II8 and the secondary beam V10 The upper and lower flanges of the long main beam II8 are connected with the middle webs of the secondary beam V10 at the two ends of the long main beam II8, and all the connection parts are welded; the secondary beam II4 is parallel to the secondary beam V10, and the The main beam I6 and the long main beam II8 are placed vertically, and the beam end of the secondary beam II4 is connected to the middle of the long main beam I6 and the long main beam II8 through the connecting plate I15, and the connecting plate I15 at one end of the secondary beam II4 is connected to the long main beam I6 The two sides of the connecting plate I15 at one end connected to the secondary beam II4 and the long main beam I6 are respectively connected to the upper and lower flanges of the secondary beam II4 and the long main beam II8. The flanges are connected, and the protruding parts of the two ends of the secondary beam Ⅱ4 are connected with the middle webs of the long main beam Ⅰ6 and the long main beam Ⅱ8 on both sides, and all the connection parts are welded; the floor 17 is spliced to the secondary beam Ⅱ4 with shear keys , Long main beam I6, long main beam II8, and secondary beam V10 on the frame.

As shown in accompanying drawing 12 and accompanying drawing 13, said F plate is made up of short main beam I1, secondary beam II4, long main beam I6, column base 7, secondary beam V10, connecting plate I15, connecting plate II16 and floor slab 17; All the components of the F slab are processed and manufactured in the factory, and then assembled into a prefabricated floor F by welding and shear key connections. The long main beam I6 and the secondary beam V10 are vertically placed, and the long main beam I6 and the secondary beam V10 are connected at the end of the beam through the connecting plate I15 and the connecting plate II16 to form a rectangular frame. The connecting plate II16 is located at the end of the secondary beam The upper and lower ends of the connecting plate II16 are connected to the flange of the secondary beam V10, one side is connected to the web of the secondary beam V10, and the other side is connected to the web of the long main beam I6, and the two sides of the connecting plate I15 They are respectively connected to the upper and lower flanges of the long main beam I6 and the secondary beam V10, and all the connecting parts are welded; one end of the two short main beams I1 and the two secondary beams II4 are respectively connected to the four sides of the column base 7, Two short main beams I1 and two secondary beams II4 are connected to the square steel pipe I12 of column base 7, the two short main beams are on a straight line, the two secondary beams are on a straight line, and column base 7 is located in the center of F plate , the adjacent short main beams and secondary beams are connected through the connecting plate I15, the two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the short main beam I1 and the secondary beam II4, and the short main beam I1 The other end of the main beam is connected to the middle part of the secondary beam V10, and the three sides of the protruding part of the short main beam I1 are respectively connected to the flange and the web of the middle part of the secondary beam V10, and the short main beam I1 is connected to the secondary beam V10 through the connecting plate I15, The two sides of the connecting plate I15 are respectively connected with the upper and lower flanges of the short main beam I1 and the secondary beam V10. The three sides of the protruding part of the main girder I6 are respectively connected to the flange and the web in the middle of the long main girder I6, and the two sides of the connecting plate I15 are respectively connected to the upper and lower flanges of the secondary girder II4 and the long main girder I6. It is welded; the floor slab 17 is spliced on the frame surrounded by the short main beam I1, the secondary beam II4, the long main beam I6, the column base 7, and the secondary beam V10 by using shear keys.

The prefabricated floor plate A is spliced with the prefabricated floor plate B, and the splicing method is to splice the long main beam I6 of the A plate and the long main beam I6 of the B plate, and all the splicing uses bolts for on-site splicing; The prefabricated floor plate B is spliced with the prefabricated floor plate C, and the splicing method is to splice the long main beam I6 of the B plate and the long main beam I6 of the C plate, and all the splicing uses bolts for on-site splicing; The prefabricated floor board D is spliced with the prefabricated floor E board, and the splicing method is to splice the long main beam I6 of the D board and the long main beam I6 of the E board, and the prefabricated floor E board and the The prefabricated floor F-slab is spliced, and the splicing method is to splice the long main beam I6 of the E-slab and the long main beam I6 of the F-slab. All the splicing uses bolts for on-site splicing; The D-slab of the prefabricated floor is spliced, and the splicing method is to splice the secondary beam V10 of the A-slab and the secondary beam V10 of the D-slab, and all the splicing uses bolts for on-site splicing; The E board is spliced, the splicing method is to splice the secondary beam V10 of the B board and the secondary beam V10 of the E board, and the prefabricated floor C board is spliced with the prefabricated floor F board, and the splicing method is to splice the C board The secondary beam Ⅴ10 and the secondary beam Ⅴ10 of the F plate are spliced, and all the splicing uses bolts for on-site splicing.

As shown in accompanying drawing 14 and accompanying drawing 15, described column seat 7 is made up of two flange plates 11 and a square steel pipe I12, and two flange plates 11 are respectively located on the two ends of square steel pipe I12, and all connections Welding is adopted; the flange column 13 is composed of a square steel pipe II14 and two flange plates 11, and the two flange plates 11 are respectively located on the two ends of the square steel pipe II14, and all connections are welded; The flange column 13 is connected with the column seat 7 to form a steel frame structure system, and all connections are bolted.

As shown in accompanying drawing 16, all the beams mentioned above can adopt honeycomb steel beams with openings at the webs of the beams to facilitate the passage of various pipelines.

As shown in accompanying drawings 17-21, the prefabricated prestressed oblique support is composed of ear plates and prestressed oblique rods 20. The ear plates are directly welded to the corresponding components of the floor in the factory. The oblique bar and the ear plate are assembled to form a prestressed oblique support; the ear plate includes a node ear plate 18 and an eccentric support beam ear plate 19; the node ear plate 18 is located at the connection between the column base 7 and the beam, The other side is connected to the square steel pipe I12 of the column seat 7, and all connections are welded; the eccentrically supported beam ear plate 19 is welded on the flange of the beam, and welded at different positions of the beam according to different forms of eccentrically supported superior.

As shown in accompanying drawing 22, the assembly rendering of the present invention.

Claims (4)

1. A modular assembly type steel structure prestressed eccentric support system just connected with nodes, it is characterized in that: said modular assembly type steel structure prestressed eccentric support system is composed of assembly type floor slab, assembly type support and assembly type flange The columns are assembled with bolts; the beam-column joints of the prestressed eccentric support system of the modular assembly steel structure and the frame are welded in the factory to achieve rigid connection; the assembled floor is composed of A plate, B plate, C Panel, D panel, E panel and F panel are composed of 6 kinds of prefabricated floors; The A plate consists of short main beam I (1), short main beam II (2), secondary beam I (3), secondary beam II (4), secondary beam III (5), long main beam I (6), Column base (7), connection plate I (15), connection plate II (16) and floor (17); all components of the A plate are processed and manufactured in the factory, and then connected by welding and shear keys The components are assembled into a prefabricated floor A; the short main beam II (2) and the secondary beam I (3) are placed vertically, and the short main beam II (2) and the secondary beam I (3) is connected, the short main beam II (2) and the secondary beam I (3) are connected to the square steel pipe I (12) of the column seat (7), and the two sides of the connecting plate I (15) are respectively It is connected to the flanges of the short main beam II (2) and the secondary beam I (3), and two connecting plates I (15) are respectively connected to the upper and lower flanges of the short main beam II (2) and the secondary beam I (3). On the flange, all the connection parts are welded; the short main beam I (1) and the short main beam II (2) are placed on the same straight line and connected by the column base (7), and the short main beam I (1) and the short main beam II (2) The short main beam II (2) is connected to the square steel pipe I (12) of the column base (7), and all the connection parts are welded; the secondary beam II (4) is parallel to the secondary beam I (3), and the short main beam Beam Ⅰ (1) and short main beam Ⅱ (2) are vertical, connected to short main beam Ⅰ (1) and short main beam Ⅱ (2) through column base (7) and connecting plate Ⅰ (15), and connected to column base On the square steel pipe I (12) of (7), the two sides of the connecting plate I (15) are connected with the wings of the short main beam I (1), the short main beam II (2) and the secondary beam II (4) respectively. The two connecting plates I (15) are respectively connected to the upper and lower flanges of the short main girder I (1), short main girder II (2) and secondary girder II (4). They are all welded; the secondary beam Ⅲ(5) is parallel to the secondary beam Ⅱ(4), perpendicular to the short main beam Ⅰ(1) and short main beam Ⅱ(2), and connected to the short main beam Ⅰ through the connecting plate Ⅰ(15) (1) Connected, the three sides of the plate protruding from the short main beam I (1) are connected with the upper and lower flanges and webs of the secondary beam III (5), and the two sides of the connecting plate I (15) are respectively It is connected with the flanges of the short main beam I (1) and the secondary beam III (5), and two connecting plates I (15) are respectively connected to the upper flange and the lower flange, and all the connection parts are welded; The main beam Ⅰ (6) is parallel to the short main beam Ⅰ (1) and the short main beam Ⅱ (2), perpendicular to the secondary beam Ⅰ (3), through the connection plate Ⅰ (15) and the connection plate Ⅱ (16) and the secondary beam I (3), secondary beam II (4) and secondary beam III (5) are connected, the connecting plate II (16) is located at the ends of secondary beam I (3) and secondary beam II (4), and the connecting plate II The upper and lower ends of (16) are connected with the flanges of secondary beam I (3) and secondary beam II (4), one side is connected with the web of secondary beam I (3), and the other side is connected with the long main beam I ( 6) web connection, the two sides of the connecting plate I (15) connect the wings of the long main beam I (6), secondary beam I (3), secondary beam II (4) and secondary beam III (5) edge, the connecting plate I (15) is respectively connected to the long main girder I (6), On the upper and lower flanges of secondary beam I (3), secondary beam II (4) and secondary beam III (5), all joints are welded; the floor (17) is spliced by shear keys On the plane surrounded by short main beam I (1), short main beam II (2), secondary beam I (3), secondary beam II (4), secondary beam III (5) and long main beam I (6); The B plate is connected by secondary beam II (4), long main beam I (6), long main beam II (8), secondary beam IV (9), secondary beam V (10), connecting plate I (15), and Slab II (16) and floor slab (17); all components of the B slab are processed and manufactured in the factory, and then each component is assembled into a prefabricated floor B by welding and shear key connection; the long main beam I (6 ) and secondary beam IV (9) and secondary beam V (10) are placed vertically, and the two long main beams I (6) and secondary beam IV (9) are connected through the connecting plate I (15) and connecting plate II (16) , The secondary beam V (10) is connected at the end of the beam to form a rectangular frame, the connecting plate II (16) is located at the end of the secondary beam IV (9), and the upper and lower ends of the connecting plate II (16) are connected to the secondary beam IV (9) The flange of the secondary beam Ⅴ (10) is connected, one side is connected with the web of the secondary beam Ⅳ (9) and the secondary beam Ⅴ (10), and the other side is connected with the web of the long main beam Ⅰ (6) connection, the two sides of the connecting plate I (15) are respectively connected with the flanges of the long main beam I (6) and the secondary beam IV (9), the long main beam I (6) and the secondary beam V (10), The two connecting plates I (15) are respectively connected to the upper and lower flanges of the long main beam I (6) and secondary beam IV (9), and the long main beam I (6) and secondary beam V (10). , all the connection parts are welded; the long main beam II (8) is parallel to the long main beam I (6), perpendicular to the secondary beam V (10), and the long main beam II (8) is located between the two long main beams In the middle of the beam I (6), the two ends of the long main beam II (8) are respectively connected to the middle parts of the secondary beam IV (9) and the secondary beam V (10) through the connecting plate I (15). The two sides of the plate I (15) are respectively connected with the flanges of the long main beam II (8) and the secondary beam IV (9), the long main beam II (8) and the secondary beam V (10), and the long main beam II ( 8) are respectively connected to the middle webs of secondary beam IV (9) and secondary beam V (10), and the two connecting plates I (15) are respectively connected to the long main beam II (8 ), on the upper and lower flanges of secondary beam IV (9) and secondary beam V (10), all joints are welded; the secondary beam II (4) is parallel to secondary beam V (10), Placed vertically with the long main beam I (6) and the long main beam II (8), connect the beam end of the secondary beam II (4) to the long main beam I (6) and the long main beam II through the connecting plate I (15) In the middle of (8), the two sides of the connecting plate I (15) at the end where the secondary beam II (4) is connected to the long main beam I (6) are respectively connected to the sides of the secondary beam II (4) and the long main beam I (6). The flanges are connected, and the two connecting plates I (15) are respectively connected to the upper and lower flanges of the secondary beam II (4) and the long main beam I (6), and the secondary beam II (4) and the long main beam The two sides of the connecting plate I (15) at one end of the beam II (8) are respectively connected with the flanges of the secondary beam II (4) and the long main beam II (8), and the two connecting plates I (15) are respectively Connected to the upper and lower flanges of the secondary beam II (4) and the long main beam II (8), the protruding parts at both ends of the secondary beam II (4) are connected to the (8) The middle webs are connected, and all the connected The joint parts are all welded; the floor (17) is spliced by the secondary beam II (4), the long main beam I (6), the long main beam II (8), the secondary beam IV (9), and the secondary beam V using shear keys. (10) on the frame surrounded; The C plate consists of short main beam I (1), short main beam II (2), secondary beam I (3), secondary beam II (4), long main beam I (6), column base (7), secondary Beam V (10), connecting plate I (15), connecting plate II (16) and floor (17); all components of the C plate are manufactured in the factory, and then connected by welding and shear keys The components are assembled into a prefabricated floor C; the two secondary beams I (3) are placed on the same straight line, connected through the column base (7), and connected to the square steel pipe I (12) of the column base (7), as The two opposite sides of the C-slab of the rectangular prefabricated floor are all connected by welding; the long main beam I (6) and the secondary beam I (3) are vertically placed as the other two opposite sides of the C-slab of the rectangular prefabricated floor , all connections are welded; the four sides of the C board are connected through the connecting plate I (15) and the connecting plate II (16) to form a rectangular frame, and the two sides of the connecting plate I (15) are respectively connected with the long main The flanges of beam I (6) and secondary beam I (3) are connected, and two connecting plates I (15) are respectively connected to the upper and lower flanges of long main beam I (6) and secondary beam I (3) , all the connecting parts are welded, the connecting plate II (16) is located at the end of the connection between the secondary beam I (3) and the long main beam I (6), the upper and lower ends of the connecting plate II (16) and the secondary beam I The flanges of (3) are connected, one side is connected with the web of the secondary beam I (3), and all the connection parts are welded; the short main beam I (1), the short main beam II (2) and the two secondary beams One end of the beam II (4) is respectively connected to the four sides of the column base (7), and the short main beam I (1), short main beam II (2) and two secondary beams II (4) are connected to the column base ( 7) On the square steel pipe I (12), the two short main beams are on a straight line, the two secondary beams are on a straight line, the column seat (7) is located in the center of the C plate, and the adjacent short main beams and secondary beams The two sides of the connecting plate I (15) are respectively connected with the flanges of the short main beam I (1) and the secondary beam II (4), and the connecting plate I (15 ) are respectively connected to the upper and lower flanges of the short main beam I (1) and the secondary beam II (4), the other end of the short main beam I (1) is connected to the middle of the secondary beam V (10), and the short The three sides of the protruding part of the main beam I (1) are respectively connected with the flange and web of the secondary beam V (10), and the short main beam I (1) is connected to the secondary beam V (10) through the connecting plate I (15). ), the two sides of the connecting plate I (15) are respectively connected with the flanges of the short main beam I (1) and the secondary beam V (10), and the connecting plate I (15) is respectively connected to the short main beam I (1 ) and the upper and lower flanges of the secondary beam V (10), all the connection parts are welded, and the other end of the short main beam II (2) passes through the column seat (7) and the connecting plate I (15) It is connected with two secondary beams Ⅰ (3), connected to the square steel pipe Ⅰ (12) of the column base (7), and the two sides of the connecting plate Ⅰ (15) are respectively connected with the short main beam Ⅱ (2) and the secondary beam The flanges of Ⅰ(3) are connected, and the connecting plate Ⅰ(15) is respectively connected to the upper and lower flanges of the short main beam Ⅱ(2) and secondary beam Ⅰ(3) Above, all the connecting parts are welded, the other end of the secondary beam II (4) is connected to the middle of the long main beam I (6), and the connecting plate I (15) is used for connection, the secondary beam II (4) The three sides of the protruding part are respectively connected with the flange and web of the long main beam I (6), and the two sides of the connecting plate I (15) are respectively connected with the secondary beam II (4) and the long main beam I (6). The flanges are connected, and the connecting plate I (15) is respectively connected to the upper and lower flanges of the secondary beam II (4) and the long main beam I (6), and all the connection parts are welded; the floor (17) is made of anti- The shear key is spliced on the frame surrounded by short main beam I (1), short main beam II (2), secondary beam I (3), secondary beam II (4) and long main beam I (6); The D plate consists of short main beam I (1), secondary beam II (4), secondary beam III (5), long main beam I (6), column seat (7), connecting plate I (15), connecting plate II (16) and the floor (17); all the components of the D slab are processed and manufactured in the factory, and then each component is assembled into a prefabricated floor D by welding and shear key connection; the short main beam I (1) Placed vertically with the secondary beam Ⅲ(5), the short main beam Ⅰ(1) is connected to the secondary beam Ⅲ(5) through the connecting plate Ⅰ(15), and the protruding part of the short main beam Ⅰ(1) is connected to the secondary beam The end web of III (5) is connected, and the two sides of the connecting plate I (15) are respectively connected with the flanges of the short main beam I (1) and the secondary beam III (5), and the two connecting plates I ( 15) Connected to the upper flange and the lower flange respectively, and all the connecting parts are welded; the two short main The beam I (1) is connected to the square steel pipe I (12) of the column base (7), and all the connection parts are welded; the secondary beam II (4) is parallel to the secondary beam III (5), and two short main The beam I (1) is vertical, connected to two short main beams I (1) through the column base (7) and the connecting plate I (15), and connected to the square steel pipe I (12) of the column base (7). The two sides of the connection plate I (15) are respectively connected with the flanges of the two short main beams I (1) and secondary beams II (4), and the connection plate I (15) is connected to the two short main beams I (1 ) and the upper and lower flanges of the secondary beam II (4), all joints are welded; the long main beam I (6) is parallel to the two short main beams I (1), perpendicular to the secondary beam II(4) is connected to the secondary beam II(4) and secondary beam III(5) at both ends through the connection plate I(15) and the connection plate II(16), and the connection plate II(16) is located at the secondary beam II (4) and the end of the secondary beam III (5), the upper and lower ends of the connection plate II (16) are connected with the flanges of the secondary beam II (4) and secondary beam III (5), and one side is connected with the secondary beam II ( 4) It is connected to the web of the secondary beam III (5), and the other side is connected to the web of the long main beam I (6), and the two sides of the connecting plate I (15) are connected to the long main beam I (6) ) and the flanges of secondary beam II (4) and secondary beam III (5), the connection plate I (15) is connected to the long main beam I (6), secondary beam II (4) and secondary beam III (5) respectively On the flange and the lower flange, the middle web of the long main girder I (6) is connected to the protruding part of the secondary girder II (4), and all the joints are welded; the floor (17) is spliced by shear keys On the frame surrounded by short main beam I (1), secondary beam II (4), secondary beam III (5) and long main beam I (6); The E plate consists of secondary beam II (4), long main beam I (6), long main beam II (8), secondary beam V (10), connecting plate I (15), connecting plate II (16) and floor (17) Composition; all components of the E-slab are processed and manufactured in the factory, and then each component is assembled into a prefabricated floor E by welding and shear key connection; the long main beam I (6) and the secondary beam V (10 ) placed vertically, the long main beam I (6) and the secondary beam V (10) are connected at the end of the beam through the connecting plate I (15) and the connecting plate II (16) to form a rectangular frame, and the connecting plate II (16) Located at the end of the secondary beam, the upper and lower ends of the connecting plate II (16) are connected to the flange of the secondary beam V (10), one side is connected to the web of the secondary beam V (10), and the other side is connected to the web of the secondary beam V (10). The long main beam I (6) is connected with the web, and the two sides of the connecting plate I (15) are respectively connected with the flanges of the long main beam I (6) and the secondary beam V (10), and the set connecting plate I ( 15) respectively connected to the upper and lower flanges of the long main beam I (6) and the secondary beam V (10), and all the connection parts are welded; the long main beam II (8) and the long main beam Ⅰ(6) is parallel to and perpendicular to the secondary beam Ⅴ(10), the long main beam Ⅱ(8) is located in the middle of the two long main beams Ⅰ(6), and the two ends of the long main beam Ⅱ(8) are respectively Connected to the middle of the secondary beam V (10) through the connecting plate I (15), the two sides of the connecting plate I (15) are respectively connected to the flanges of the long main beam II (8) and the secondary beam V (10) , the two end extensions of the long main beam II (8) are connected to the middle webs of the secondary beam V (10) at both ends, and the connecting plate I (15) is connected to the long main beam II (8) and the secondary beam respectively. On the upper and lower flanges of beam V (10), all the connection parts are welded; the secondary beam II (4) is parallel to the secondary beam V (10), and the long main beam I (6) and the long The main beam II (8) is placed vertically, and the beam end of the secondary beam II (4) is connected to the middle of the long main beam I (6) and the long main beam II (8) through the connecting plate I (15), and the secondary beam II ( 4) The two sides of the connecting plate I (15) at one end connected to the long main beam I (6) are respectively connected to the flanges of the secondary beam II (4) and the long main beam I (6), and the set connecting plate I ( 15) Connected to the upper and lower flanges of the secondary beam II (4) and the long main beam I (6) respectively, and the connecting plate I (15 ) are respectively connected to the flanges of the secondary beam II (4) and the long main beam II (8), and the two connecting plates I (15) are respectively connected to the (secondary beam II (4) and the long main beam On the upper and lower flanges of Ⅱ(8), the protruding parts at both ends of the secondary beam Ⅱ(4) are connected with the middle webs of the long main girder Ⅰ(6) and the long main girder Ⅱ(8) on both sides, all The connection parts are all welded; the floor (17) is spliced with shear keys to the secondary beam II (4), the long main beam I (6), the long main beam II (8), and the secondary beam V (10). on the frame; The F board is composed of short main beam I (1), secondary beam II (4), long main beam I (6), column seat (7), secondary beam V (10), connecting plate I (15), connecting plate II (16) and floor (17); all the components of the F slab are processed and manufactured in the factory, and then each component is assembled into a prefabricated floor F by welding and shear key connection; the long main beam I (6) Placed vertically with the secondary beam Ⅴ (10), the long main beam Ⅰ (6) and the secondary beam Ⅴ (10) are connected at the end of the beam through the connecting plate Ⅰ ( 15 ) and the connecting plate Ⅱ ( 16 ) to form a rectangular frame , the connecting plate II (16) is located at the end of the secondary beam, the upper and lower ends of the connecting plate II (16) are connected to the flange of the secondary beam V (10), and one side is connected to the web of the secondary beam V (10) The other side is connected to the web of the long main beam I (6), and the two sides of the connecting plate I (15) are respectively connected to the flanges of the long main beam I (6) and the secondary beam V (10), The set connection plate I (15) is respectively connected to the upper and lower flanges of the long main beam I (6) and the secondary beam V (10), and all the connection parts are welded; the two short main beams I (1 ) and one end of two secondary beams II (4) are respectively connected to the four sides of the column base (7), and two short main beams I (1) and two secondary beams II (4) are connected to the column base (7 ) on the square steel pipe I (12), the two short main beams are on a straight line, the two secondary beams are on a straight line, the column seat (7) is located in the center of the F plate, and the adjacent short main beams and secondary beams The two sides of the connecting plate I (15) are respectively connected with the flanges of the short main beam I (1) and the secondary beam II (4), and the connecting plate I (15) respectively connected to the upper and lower flanges of the short main beam I (1) and secondary beam II (4), the other end of the short main beam I (1) is connected to the middle of the secondary beam V (10), and the short main beam The three sides of the protruding part of the beam I (1) are respectively connected with the flange and the web in the middle of the secondary beam V (10), and the short main beam I (1) is connected to the secondary beam V (10) through the connecting plate I (15). ), the two sides of the connecting plate I (15) are respectively connected to the flanges of the short main beam I (1) and the secondary beam V (10), and the connecting plate I (15) is connected to the upper and lower flanges respectively Above, the other end of the secondary beam II (4) is connected to the middle part of the long main beam I (6), and the connection plate I (15) is used for connection, and the three sides of the protruding part of the secondary beam II (4) are respectively connected with The flange in the middle of the long main girder I (6) is connected to the web, and the two sides of the connecting plate I (15) are respectively connected to the flanges of the secondary beam II (4) and the long main girder I (6), and the connecting plate I (15) are respectively connected to the upper and lower flanges of the secondary beam II (4) and the long main beam I (6), and all the connection parts are welded; the floor (17) is spliced on the short main beam On the frame surrounded by beam I (1), secondary beam II (4), long main beam I (6), column base (7), and secondary beam V (10); The prefabricated floor plate A is spliced with the prefabricated floor plate B. The splicing method is to splice the long main beam I (6) of the A plate and the long main beam I (6) of the B plate. Bolts are used for on-site splicing; the prefabricated floor slab B is spliced with the prefabricated floor slab C, and the splicing method is to carry out the long main beam I (6) of the B plate and the long main beam I (6) of the C plate Splicing, all the splicing uses bolts for on-site splicing; the prefabricated floor D plate is spliced with the prefabricated floor E plate, and the splicing method is to connect the long main beam I (6) of D plate and the long main beam of E plate. The beam I (6) is spliced, and the prefabricated floor E plate is spliced with the prefabricated floor F plate, and the splicing method is to combine the long main beam I (6) of the E plate and the long main beam I (6) ) for splicing all the splicing on-site using bolts; the prefabricated floor A and the prefabricated floor D are spliced, and all the splicing uses bolts for on-site splicing; the prefabricated floor B and the prefabricated floor The prefabricated floor E board is spliced, and the splicing method is to splice the secondary beam V (10) of the B board and the secondary beam V (10) of the E board, and the prefabricated floor C board and the prefabricated floor F board Splicing, the splicing method is to splice the secondary beam Ⅴ (10) of the C plate and the secondary beam Ⅴ (10) of the F plate, and all the splicing uses bolts for on-site splicing; The basic constituent units of the prefabricated floor are A board, B board, C board, D board, E board and F board; the two ends of the prefabricated floor system in the horizontal direction are A board and D board, B board and C board Spliced together to form a module, the modules are spliced with each other, according to the area required by the building, increase the number of this module and spliced with the A board; E board and F board are spliced together to form another module, this module can be spliced with each other, according to the building requirements increase the number of modules to be spliced with D boards; the two ends of the prefabricated floor in the longitudinal direction are A boards, B boards, and C boards, and the middle modules composed of D boards, E boards, and F boards are added to splice to increase Large construction area; realize modular splicing; The column seat (7) is made up of two flange plates (11) and a square steel pipe I (12), and the two flange plates (11) are respectively located on the two ends of the square steel pipe I (12). The connections are all welded; the flange column (13) is composed of a square steel pipe II (14) and two flange plates (11), and the two flange plates (11) are respectively located on the two sides of the square steel pipe II (14). On each end, all connections are welded; the flange column (13) is connected with the column seat (7) to form a steel frame structure system, and all connections are bolted; The assembled support is composed of lug plates and prestressed eccentric slanting rods (20). The lug plates are directly welded to the corresponding components of the floor in the factory. During on-site construction, the prestressed eccentric slanting rods and lug plates are assembled. Form a prestressed eccentric oblique support; the lug includes a node lug (18) and an eccentric support beam lug (19); the node lug (18) is located at the junction of the column seat (7) and the beam, The flange of the beam is connected, and the other side is connected with the square steel pipe I (12) of the column seat (7). All connections are welded; Different forms are welded at different positions on the beam. 2. A prestressed eccentric bracing system of a modular assembled steel structure with rigidly connected nodes according to claim 1, characterized in that: the short main girder I (1), the short main girder II (2), the secondary Beam Ⅰ (3), secondary beam Ⅱ (4), long main beam Ⅱ (8), and secondary beam Ⅳ (9) are H-shaped steel, or the equivalent H-shaped steel formed by splicing two channel steels back to back, or two The equivalent H-shaped steel spliced by two T-shaped steels, or the equivalent H-shaped steel spliced by four angle steels; the secondary beam III (5), the long main beam I (6), and the secondary beam V (10) are Channel steel, or the equivalent channel steel spliced by two angle steels. 3. A prestressed eccentric bracing system of a modular assembled steel structure with rigidly connected nodes according to claim 1, characterized in that: all the beams are shaped steel beams, or openings are opened at the webs of the beams Honeycomb steel beams are convenient for various pipelines to pass through. 4. A prestressed eccentric bracing system of a modular assembled steel structure with rigidly connected nodes according to claim 1, characterized in that: the prestressed eccentric oblique rod is a prestressed eccentric cable, or a prestressed eccentric tie rod .