CN103206015B - A kind of assembling type steel structure accentric support frame system - Google Patents

Abstract

An eccentrically braced frame system of a prefabricated steel structure belongs to the technical field of structural engineering, and includes a prefabricated truss floor, a prefabricated column, and an eccentric support member. Beam-column joints and floor slabs; the prefabricated truss slabs are prefabricated in factories, and the fabricated truss slabs are spliced with the prefabricated columns through their beam end sealing plates or beam-column joints at the construction site as beam-slab layers of frame structures; The beam-slab layer of the frame structure is connected up and down at the inflection points between layers through assembled columns to form a multi-layer steel frame structure; on the basis of the steel frame structure, the eccentric support member is connected to the beam-slab layer of the frame structure The bottom of the truss beam or column is used as a lateral force-resisting component; the fabricated truss plate, fabricated column and eccentric support components are all prefabricated in the factory and assembled by bolts at the construction site.

Description

An Assembled Steel Structure Eccentrically Supported Frame System

technical field

The invention relates to an eccentric support frame system of an assembled steel structure, which belongs to the technical field of structural engineering. Background technique

my country's annual urban and rural housing area is 2 billion square meters, of which more than 80% are high-energy buildings, and the energy consumption per unit building area in my country is more than twice that of developed countries. According to the statistics of the China Iron and Steel Association, in 2011, my country's steel output exceeded 700 million tons, ranking first in the world's steel output for 16 consecutive years. Our country is less than 4%. As the country with the largest construction scale and steel output in the world, China's development of housing, including residential steel structures, is seriously lagging behind.

At present, the systematic research on high-rise steel structure residences at home and abroad is in its infancy, and the innovation of industrially assembled high-rise steel structure systems is imperative. A lot of welding is used in the construction of traditional steel structure residential buildings, the construction speed is slow, and the pollution to the environment is serious. The most important thing is that the quality of the welds is not suitable for control, which seriously affects the safety performance of the building.

In the traditional steel frame structure system, the lateral rigidity of the structure is difficult to meet the requirements, and the deformation is large, which is easy to cause damage to non-structural components. The prefabricated steel structure eccentrically supported frame system adds lateral and longitudinal eccentric supports to the steel frame. , which increases the lateral stiffness of the structure and improves the deformation performance of the structure.

Contents of the invention

The invention proposes an assembled steel structure eccentric support frame system belonging to the technical field of structural engineering. Its purpose is to combine modularization, factoryization, standardization and assembly in the production and construction of the steel structure system, realize factory production, on-site quick assembly, and improve the construction speed on the premise of ensuring the construction quality. The construction period is reduced and the project cost is reduced. The structural system can realize the rapid installation of the main steel structure frame and lateral force-resistant members, and can resist earthquake and wind loads, reflecting the advantages of steel structures.

The eccentric support frame system of a prefabricated steel structure includes a prefabricated truss floor, a prefabricated column and an eccentric support member;

The prefabricated truss floor includes lattice truss beams, connecting plates and floor slabs, the lattice truss beams are connected to other lattice truss beams through the connecting plates to form the bottom frame of the truss floor, and then the floor is supported on the truss slabs The bottom frame is connected to form a prefabricated truss floor; the prefabricated truss floor is prefabricated in the factory, and the prefabricated truss floor is spliced with the beam-column nodes on the prefabricated column through its beam end sealing plate at the construction site to form a multi- Layer steel frame structure; on the basis of the steel frame structure, the eccentric support member is connected to the bottom of the truss beam or column in the frame structure beam slab layer as a lateral force member; the assembled truss plate, assembled column and eccentric support members are prefabricated in the factory and assembled by bolts at the construction site.

The eccentrically supported frame system of a prefabricated steel structure, the prefabricated truss floor includes three specifications, namely A board, B board and C board;

The A plate includes a beam-column node 7, a long and wide beam 10, a wide beam 11, a narrow beam 12, a secondary beam 13, a connecting plate I16, a connecting plate II17 and a floor 14; the wide beam 11 and the long and wide beam 10 are perpendicular to each other, and They are connected with the channel steel connecting plate on the two-way beam-column joint through the beam end sealing plate with bolts, and a connecting plate I16 is respectively welded on the upper and lower end faces of the joint, and the two ends of the connecting plate I16 are connected to the wide beam 11 and the long beam respectively. On the upper and lower chords of the wide beam 10; the other end of the wide beam 11 is connected with a narrow beam 12 parallel to the long and wide beam 10, and the ends of the wide beam 11 are respectively welded to the upper and lower chords at the end of the narrow beam 12, and The wide beam 11 and the narrow beam 12 are connected through the connecting plate II17, and the upper and lower chords of the wide beam 11 and the narrow beam 12 are welded and connected with two connecting plates II17; the secondary beam 13 is connected between the long and wide beam 10 and the narrow The other end of the beam 12 is horizontally opposite to the wide beam 11. One end of the secondary beam 13 is welded to the upper and lower chords of the other end of the narrow beam 12 respectively, and the secondary beam 13 and the narrow beam 12 are connected by connecting the upper and lower chords. The two connecting plates II17 at the bar are connected; the other end of the secondary beam 13 and the long and wide beam 10 are connected through two connecting plates I16 connected at the upper and lower chords; the long and wide beams 10, wide beams 11 , narrow beam 12, secondary beam 13 constitute a rectangular frame; the two rectangular frames are connected to form a spliced frame; the secondary beam 13 in the two rectangular frames is aligned and bolted to the top of the upper chord by bolts connected, and the two long and wide beams 10 are located on a straight line, and the two narrow beams 12 are located on a straight line; the upper and lower ends of the two long and wide beams 10 pass through the two opposite directions of the beam end sealing plate and the three-way beam-column joint The ribbed section steel connection plates on the top are connected by bolts, and the two secondary beams 13 are connected to the ribbed section steel connection plates perpendicular to the two directions on the three-way beam-column joint; Anchors on the top of the rod are connected to the two floor slabs 14;

Described B plate comprises wide beam 11, narrow beam 12, secondary beam 13, connecting plate II17, connecting plate I16 and floor slab 14, and wide beam 11 and narrow beam 12 are vertical mutually, wide beam 11 ends and narrow beam 12 ends The upper and lower chords are connected by welding, and then connected by the connecting plate II17, and the upper and lower chords of the wide beam 11 and the narrow beam 12 are connected by welding with two connecting plates II17; the other end of the wide beam 11 is connected with all the Another narrow beam 12 that is parallel to the narrow beam 12, and the upper and lower chords of the wide beam 11 and the narrow beam 12 are connected by welding with two connecting plates I16; the secondary beam 13 is connected between the two double narrow beams 12 The other end is horizontally opposite to the wide beam 11, and the connection form between the secondary beam 13 and the two narrow beams 12 is the same as the connection form between the wide beam 11 and the two narrow beams 12; The beam 12 and the secondary beam 13 form a rectangular frame; the two rectangular frames are connected to form a spliced frame; the secondary beams 13 in the two rectangular frames are aligned and connected by bolts or upper chords with bolts , and the two horizontally opposite narrow beams 12 of a rectangular frame and the two horizontally opposite narrow beams 12 of another long direction frame are respectively located on a straight line;

The C-slab includes beam-column joints 7, wide beams 11, narrow beams 12, secondary beams 13, connection plates II17, connection plates I16 and floor slabs 14, the wide beams 11 and narrow beams 12 are perpendicular to each other, and all pass through the beam end sealing plate , and the two adjacent ribbed steel connecting plates on the three-way beam-column joint are connected by bolts, and a connecting plate I16 is welded at the upper and lower end faces of the joint, and the two ends of the connecting plate I16 are respectively connected to the wide beam 11 and the On the upper and lower chords of the narrow beam 12; the other end of the wide beam 11 is connected with another narrow beam 12 parallel to the narrow beam 12 by welding, and the ends of the wide beam 11 and the upper and lower chords of the end of the narrow beam 12 are respectively The wide beam 11 is connected to the narrow beam 12 through the connecting plate II17, and the upper and lower chords of the wide beam 11 and the narrow beam 12 are connected to the two connecting plates II17 by welding; the secondary beam 13 is connected to the two The other end of the narrow beam 12 is horizontally opposite to the wide beam 11. One end of the secondary beam 13 is welded to the upper and lower chords of the other end of the narrow beam 12 respectively, and the secondary beam 13 and the narrow beam 12 are connected by connecting the upper and lower chords. The two connecting plates II17 at the bar are connected; the other end of the secondary beam 13 and the narrow beam 12 are connected through two connecting plates I16 connected at the upper and lower chords; the wide beam 11 and the two narrow beams 12 , the secondary beam 13 forms a rectangular frame; the two rectangular frames are connected to form a spliced bottom frame; the secondary beams 13 in the two rectangular frames are aligned and connected by bolts or upper chords with bolts, And two narrow beams 12 horizontally opposite to one rectangular frame and two narrow beams 12 horizontally opposite to another long direction frame are respectively located on a straight line; The ribbed steel connecting plates in two opposite directions of the column joint are connected by bolts, and the two secondary beams 13 are connected to the ribbed steel connecting plates perpendicular to the two directions on the three-way beam-column joint; The bottom frame is connected to the two floor slabs 14 through the upper anchor piece of the upper chord of the truss beam;

In a prefabricated steel structure eccentric support frame system, the A plate and the B plate are horizontally aligned, and the end of the wide beam 11 of the A plate that is not connected to the beam-column node 7 is connected to the B plate The end of the wide beam 11 with the connection plate II17 is spliced with bolts through the beam end sealing plate; the end of the secondary beam 13 of the A plate that is not connected to the beam-column node 7 and the end of the secondary beam 13 of the B plate with the connection plate II17 are passed The beam end sealing plates are spliced by bolts; at the joint plate of the narrow beam 12 of the A plate and the narrow beam 12 of the B plate, the single beam is spliced at a fixed distance through bolts or the upper part of the top chord is covered with bolts, so that the two The single girders are connected to form double girders; then the upper and lower sides of the splicing joints are bolted to cover the plates; thus the splicing of the A plate and the B plate is completed;

In a prefabricated steel structure eccentrically supported frame system, the B-plate and the C-plate are horizontally aligned, and the end of the wide beam 11 of the B-plate with the connecting plate I16 and the three-way The exposed ribbed steel connectors of the beam-column joints are connected by bolts through the beam end sealing plate; the end of the secondary beam 13 of the B plate with the connecting plate I16 and the exposed ribbed steel connectors of the four-way beam-column joints of the C plate are passed through the beam end The sealing plates are connected by bolts; the upper and lower ends of the two narrow beams 12 of the B The other end of the beam 12 is respectively connected with the ribbed steel connector perpendicular to the exposed ribbed steel connector on the three-way beam-column joint of the C plate through the beam end seal plate and bolted through the beam end seal plate; The narrow beam 12 and the joint plate of the narrow beam 12 of the C plate are spliced by bolts or the upper part of the top chord with bolts to splice the single beam at a fixed distance, so that two single beams are connected to form a double beam; Cover the board with bolts on both sides; thus complete the splicing of board B and board C.

The eccentric support frame system of a prefabricated steel structure has three types of prefabricated columns, which are two-way prefabricated post, three-direction prefabricated post and four-direction prefabricated post; 22 is welded to the adjacent two sides of the box-shaped column 6 to form a two-way assembled column; three pieces of ribbed steel connecting plates 22 are welded to the three sides of the box-shaped column 6 to form a three-way assembled column; The connecting plate 22 is welded to the four sides of the box-shaped column 6 to form a four-way assembled column; there are bolt holes on the web of the ribbed steel connecting plate 22, which is convenient for splicing with the upper end sealing plate of the beam; the inner wall of the upper end of the box-shaped column The upper and lower column connecting plates 8 are welded. When the upper and lower columns are spliced, the connecting plate 8 is inserted into the inner wall of the upper box-shaped column, and the upper and lower beams and columns are connected by bolts.

In the eccentrically supported frame system of a prefabricated steel structure, the eccentrically supported member is composed of a diagonal brace 19 and a cantilever rod, and the cantilever rod is connected to the bottom of the column of the steel frame structure by welding in the factory or connected to the steel frame by welding and bolts At the upper and lower chords of structural truss beams 18, diagonal braces 19 and the cantilever rods at the upper and lower ends of each floor are connected by bolts on the construction site through cover plates, forming energy-dissipating beam sections on the beams to form a frame-eccentric support structure; The cross-section of the brace is H-shaped steel, or I-shaped steel, double-channel steel composite cross-section, double-angle steel composite cross-section; the diagonal brace is an ordinary high-strength steel strip, or it is supported by buckling-resistant energy-dissipating supports or energy-dissipating dampers.

In the eccentrically supported frame system of an assembled steel structure, the beam involved is a truss beam formed by splicing upper and lower chords 1, web members 2 and gusset plates 3, wherein the upper and lower chords use angle steel, or use channel steel , or use square steel pipes, the web 2 uses angle steel, and the web and chord form an angle of 30°-60°; and it is divided into single beam and double beam, and the single beam is provided with connection holes at a fixed distance, which is convenient for the connection between the plate and the plate. When splicing, use bolts or upper chord cover plates to splice two single girders into double girders. For double girders, web members 2, upper and lower chords and gusset plate 3 are connected by bolts or welding, all in the factory Processing completed;

The beneficial effect of the present invention is that the splicing of the upper and lower layers is realized at the interlayer inflection point, and the mechanical bending moment at the interlayer inflection point is zero, and the splicing node is set here, and the node can be more protected. In the above prefabricated steel structure eccentrically supported frame system, the beams used are all truss beams. Since the belly gap of the beams is large, it is convenient for pipelines to pass through, effectively increasing the clear height of the room.

The prefabricated steel structure eccentric support frame system completely uses bolts for on-site assembly, cancels the traditional on-site welding method and concrete pouring method, effectively guarantees the construction quality, and completely avoids environmental pollution caused by concrete pouring and steel welding. Realize the three no standards of "no water, no fire, no dust" in on-site construction, reducing the occurrence of fire and other hazardous accidents. And the anti-lateral force system can effectively improve the lateral stiffness of the structure, improve the deformation performance of the structure, and make the structure have a greater safety reserve. When the components are dismantled, the present invention can efficiently recycle, reduce construction waste, truly realize the concept of green environmental protection, and is a green and sustainable steel structure system.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

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

Fig. 2 is a schematic diagram of the assembled truss floor of the present invention without gusset plate angle steel truss beams

Fig. 3 is a schematic diagram of the fabricated truss floor without gusset plate channel steel truss girder of the present invention

Fig. 4 is a schematic diagram of the fabricated truss floor of the present invention without a joint plate square steel pipe truss beam

Fig. 5 is a schematic diagram of the assembled truss slab building with gusset plate angle steel truss girder of the present invention

Fig. 6 is a schematic diagram of a two-way assembled column of the present invention

Fig. 7 is a schematic diagram of the three-way assembled column of the present invention

Fig. 8 is a schematic diagram of a four-way assembled column of the present invention

Fig. 9 is an exploded view of the truss floor of the present invention

Fig. 10 is an assembled drawing of the truss floor slab of the present invention

Fig. 11 is an exploded view of unit A of the assembled truss plate of the present invention

Fig. 12 is an assembled drawing of unit A of the fabricated truss plate of the present invention

Fig. 13 is an exploded view of unit B of the assembled truss plate of the present invention

Fig. 14 is an assembled drawing of unit B of the assembled truss plate of the present invention

Fig. 15 is an exploded view of unit C of the assembled truss plate of the present invention

Fig. 16 is an assembled drawing of unit C of the fabricated truss plate of the present invention

Fig. 17 is an assembled drawing of the fabricated truss panels A, B and C units of the present invention

Fig. 18 is an assembled drawing of the upper and lower frames of the present invention

Fig. 19 is an exploded view of the fabricated truss panel joint J1 of the present invention

Fig. 20 is an exploded view of the assembled truss plate joint J2 of the present invention

Fig. 21 is an exploded view of the assembled truss plate joint J3 of the present invention

Fig. 22 is an exploded view of the assembled truss plate node J4 of the present invention

Fig. 23 is an exploded view of the assembled truss plate node J5 of the present invention

Fig. 24 is an exploded view of the assembled truss plate node J6 of the present invention

Fig. 25 is an exploded view of the assembled truss plate node J7 of the present invention

Fig. 26 is an exploded view of the assembled truss plate node J8 of the present invention

Fig. 27 is an exploded view of the assembled truss plate joint J9 of the present invention

Fig. 28 is an exploded view of the assembled truss plate joint J10 of the present invention

Fig. 29 is an exploded view of the assembled truss plate joint J11 of the present invention

Fig. 30 is an exploded view of the assembled truss plate node J12 of the present invention

Fig. 31 is an exploded view of the assembled truss plate node J17 of the present invention

Fig. 32 is a schematic diagram of the assembled steel structure frame-eccentric gantry type support system I of the present invention

Fig. 33 is a schematic diagram of the assembled steel structure frame-eccentric gantry type support system II of the present invention

Fig. 34 is a schematic diagram of the assembled steel structure frame-eccentric herringbone support system of the present invention

Fig. 35 is a schematic diagram of the assembled steel structure frame-eccentric V-shaped support system of the present invention

Fig. 36 is a schematic diagram of the assembled steel structure frame-eccentric single-slope support system of the present invention

Fig. 37 is a detailed diagram of the node 13 of the assembled steel structure eccentrically supported frame system of the present invention

Fig. 38 is a detailed diagram of the node 14 of the assembled steel structure eccentrically supported frame system of the present invention

Fig. 39 is a detailed view of the node 15 of the assembled steel structure eccentrically supported frame system of the present invention

Fig. 40 is a detailed diagram of the node 16 of the assembled steel structure eccentrically supported frame system of the present invention

In the figure 1. Upper and lower chord I, 2. Web member, 3. Gusset plate, 4. Upper and lower chord II, 5. Upper and lower chord III, 6. Box column, 7. Beam-column joint, 8. Upper and lower column connection Slab, 9. Prefabricated column, 10. Long and wide beam, 11. Wide beam, 12. Narrow beam, 13. Secondary beam, 14. Floor, 15. Truss floor, 16. Connection plate I, 17. Connection plate II, 18 . Truss beam, 19. Diagonal brace, 20. Cantilever rod I, 21. Cantilever rod II, 22. Ribbed steel connector.

detailed description

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

As shown in Figure 1, the splicing position of a prefabricated truss floor slab of the present invention is set in the middle of the main girder, where the shear force and bending moment are relatively small. From the perspective of structural mechanics, the setting of the splicing position is reasonable.

As shown in Figure 2, in the eccentrically supported frame system of an assembled steel structure according to the present invention, the beam involved is a truss beam composed of angle steel splicing, including upper and lower chords I1 and web members 2, wherein the upper and lower chords Rod I1 and web 2 are both made of angle steel, and are divided into single-angle steel beams and double-angle steel beams. The single-angle steel beams are provided with connection holes at intervals of a fixed distance, which is convenient to cover with bolts or the upper part of the upper chord when splicing plates. The plate uses bolts to splice two single-angle steel beams into a double-angle steel beam, and the chord and web are connected by welding. The above processes are all processed in the factory;

As shown in Figure 3, or use a truss beam spliced by angle steel and channel steel, including upper and lower chords II4 and web 2, wherein the upper and lower chord II4 uses channel steel, and the web 2 uses angle steel, and is divided into single grooves Steel beams and double-channel steel beams, and single-channel steel beams are provided with connecting holes at a fixed distance, so that two pieces of single-channel steel beams can be spliced into double-channel steel beams with bolts or bolts on the upper part of the upper chord when the plate is spliced. Beams, chords and webs are joined by welding. The above processes are all processed in the factory;

As shown in Figure 4, or use a truss beam composed of angle steel and square steel pipe splicing, including upper and lower chord III6 and web member 2, wherein the upper and lower chord III6 adopts square steel pipe, and the web member 2 adopts angle steel, and is divided into single steel pipe Beams, double-sided steel pipe beams, and single-side steel pipe beams are provided with connecting holes at a fixed distance, so that two pieces of single-side steel pipe beams can be spliced into two-side steel pipe beams with bolts or bolts on the upper part of the top chord when splicing plates. Rods and webs are connected by welding. The above processes are all processed in the factory;

As shown in Figure 5, or use a truss beam spliced by angle steel and gusset plate, including upper and lower chords I1, web 2 and gusset plate 3, wherein the upper and lower chords I1 and web 2 are made of angle steel, and are divided into single Angle steel beams and double angle steel beams, and single angle steel beams are provided with connecting holes at a fixed distance, so that two single square steel pipe beams can be spliced into double angle steel beams with bolts or upper chords with bolts when splicing plates. Beams, chords and webs are joined by welding. The above processes are all processed in the factory;

For the above four beam cross-section forms, the splicing of single beams through bolts or the upper chord cover plate with bolts to form double beams has good rigidity and stability. Since the belly space of the truss beam is large, it is convenient for pipelines to pass through, effectively increasing the net height of the room.

In the eccentrically supported frame system of an assembled steel structure according to the present invention, as shown in accompanying drawings 6-8, there are three types of assembled columns, which are two-way assembled columns, three-way assembled columns and four-way assembled columns. Assembled columns; upper and lower column connecting plates 8 are welded along the inner wall of the upper end of the box-shaped column 6, and two pieces of ribbed steel connectors 22 are welded to the adjacent two sides of the box-shaped column 6 to form a two-way assembled column; The ribbed steel connectors 22 are welded to the three sides of the box-shaped column 6 to form a three-way assembled column; four pieces of ribbed steel connectors 22 are welded to the four sides of the box-shaped column 6 to form a four-way assembled column; Bolt holes are arranged on the web plate of the section steel connector 22, which is convenient for splicing with bolts on the upper end sealing plate of the beam.

In a prefabricated steel structure eccentric support frame system according to the present invention, as shown in accompanying drawings 9-10, the truss floor 15 includes beam-column nodes 7, long and wide beams 10 or narrow beams 12, wide beams 11, and narrow beams 12. The secondary beam 13, the connection plate I16, the connection plate II17 and the floor slab 14; it is characterized in that: the wide beam 11 and the long and wide beam 10 or the narrow beam 12 are perpendicular to each other, and a connection plate I16 is welded at the upper and lower end faces of the joint, The two ends of the connecting plate I16 are respectively connected to the upper and lower chords of the wide beam 11 and the long and wide beam 10 or the narrow beam 12; The upper and lower chords at the ends of the narrow beam 12 are connected by welding respectively, and the wide beam 11 and the narrow beam 12 are connected through the connecting plate II17 of the upper and lower sections, and the upper and lower chords of the wide beam 11 and the narrow beam 12 are both It is connected to two connecting plates II17 by welding; the secondary beam 13 is connected to the other end of the long and wide beam 10 and the narrow beam 12, and is horizontally opposite to the wide beam 11, and the one end of the secondary beam 13 is connected to the other end of the narrow beam 12. The upper and lower chords are respectively connected by welding, and the secondary beam 13 and the narrow beam 12 are connected through two connecting plates II17 connected to the upper and lower chords; the other end of the secondary beam 13 and the long and wide beam 10 are connected by The two connecting plates I16 at the upper and lower chords are connected; the long and wide beams 10 or narrow beams 12, wide beams 11, narrow beams 12, and secondary beams 13 form a rectangular frame; the frame is anchored by the upper part of the upper chord of the truss beam The parts are connected to the floor 14; the truss floor is prefabricated in the factory.

In a prefabricated steel structure eccentric support frame system, as shown in Figures 11-12, the A plate includes a truss floor 15 with long and wide beams 10, two two-way fabricated columns and a three-way assembled It is characterized in that: the two truss floors 15 with long and wide beams 10 are connected by bolts to the second beam 13 or a cover plate on the upper chord to form a frame; the two two-way assembled columns The beam end sealing plates of the long and wide beams 10 exposed at both ends of the frame and the beam end sealing plates of the wide beams 11 are connected with bolts through ribbed steel connectors 22; The beam end seal plate at the other end of the long and wide beam 10 and the exposed beam end seal plates of the two single-angle steel secondary beams 13 are connected with bolts through a ribbed steel connector 22 . The truss floor and fabricated column of the A-plate are prefabricated in the factory, and the splicing of the truss floor and the fabricated column is completed at the construction site.

In the prefabricated steel structure eccentric support frame system, as shown in accompanying drawings 13-14, the B-board includes two truss floor slabs 15 with narrow beams 12; The truss floor 15 forms a frame through the connection of the second beam 13 with bolts or the cover plate on the upper chord with bolts; all components of the B plate are prefabricated and assembled in the factory;

In the prefabricated steel structure eccentrically braced frame system, as shown in Figures 15-16, the C-slab includes two truss floor slabs 15 with narrow beams 12, two three-way fabricated columns and one four-way fabricated column; it is characterized in that; the two truss floors 15 with narrow beams 12 are connected by bolts to the second beam 13 or the upper chord with bolts to form a frame; the two three-way fabricated columns are respectively connected with The beam end seal plate of the narrow beam 12 exposed at both ends of the frame and the beam end seal plate of the wide beam 11 are connected by bolts through the ribbed steel connector 22; 12 The beam end seal plate at the other end and the exposed beam end seal plates of the two single-angle steel secondary beams 13 are connected by bolts through ribbed steel connectors 22 . The truss floor and prefabricated column of the C-slab are prefabricated in the factory, and the splicing of the truss floor and the prefabricated column is completed at the construction site.

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in Figure 17, the A board and the B board are horizontally aligned with the A board and the B board, and the wide beam 11 of the A board has no connecting beam One end of the column joint 7 and the end of the wide beam 11 of the B plate with the connecting plate II17 are spliced with bolts through the beam end sealing plate; the end of the secondary beam 12 of the A plate that is not connected to the beam-column node 7 and the secondary beam of the B plate 12, one end of the connecting plate II17 is used to splice the beam end sealing plate with bolts; at the joint plate of the narrow beam 12 of plate A and the narrow beam 12 of plate B, the cover plate is added to the chord by bolts, and the single beam is bolted every other Splicing at a fixed distance, so that two single girders are connected to form a double girder; then bolts are used to cover the upper and lower sides of the splicing joint; thus completing the splicing of A and B plates;

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in Figure 17, the B board and the C board are horizontally aligned with the B board and the C board, and the connecting board of the wide beam 11 of the B board is One end of I16 and the three-way beam-column joint J8 of the C plate are connected with the exposed ribbed steel connector 22 through the beam end sealing plate with bolts; the end of the secondary beam 12 of the B plate with the connection plate I16 is connected with the four-way beam of the C plate The exposed ribbed steel connectors 22 of the column joint J7 are connected by bolts through the beam end sealing plate; The ribbed steel connectors 22 are connected by bolts, and the other ends of the narrow beams 12 of the B board are respectively passed through the beam end seal plate and the three-way beam-column joint J7 of the C board, which are perpendicular to the exposed ribbed steel connectors 22. The rib-shaped steel connectors 22 are connected by bolts through the beam end sealing plate; the narrow beam 12 of the B plate and the narrow beam 12 of the C plate are connected by bolts or a cover plate on the upper chord. Carry out splicing so that two single girders are connected to form double girders; then cover plates with bolts on the upper and lower sides of the splicing joints; thus completing the splicing of B and C plates.

To sum up, the overall floor slab formed by the splicing of A, B, and C plates has four different node forms at the splicing point: node J9, node J10, node J11, and node J12, among which nodes J9 and J10 are located above and below the splicing nodes Overlay plates to increase joint stiffness.

In the above prefabricated steel structure eccentrically braced frame system, as shown in the accompanying drawings 19-26, the exploded detailed drawings of the fabricated truss plate joints J1-J8 are respectively made; as shown in the attached drawings 27-30, the assembly The exploded detailed diagram of joints J9-J12 of type truss plate; the accompanying drawing 31 is the exploded detailed diagram of joint J17 connecting the upper and lower frames.

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in accompanying drawing 32, its gantry type anti-lateral force component I is made up of diagonal brace 19, cantilever rod 20 and cantilever rod 21; Cantilever rod 20 is welded Or the bolts are connected to the bottom of the column, the diagonal brace 19 and the cantilever rod 20 are connected by bolts through the cover plate; The cross-section of the brace is H-shaped steel, or I-shaped steel, double-channel steel composite cross-section, double-angle steel composite cross-section; the diagonal bracing is an ordinary high-strength steel strip, or it is supported by buckling-resistant energy-dissipating supports or energy-dissipating dampers; The embodiment is described by taking a common high-strength H-shaped steel strip as an example.

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in accompanying drawing 33, its gantry type lateral force resistant member II is made up of diagonal braces 19 and cantilever rods 21; the cantilever rods 21 are connected to the On the truss beam 18, the diagonal brace 19 and the cantilever rod 21 are connected by bolts through the cover plate; the cross section of the diagonal brace is H-shaped steel, or I-shaped steel, double-channel steel composite cross-section, and double-angle steel composite cross-section; the diagonal brace is a common High-strength steel strips, or buckling-resistant energy-dissipating supports or energy-dissipating dampers; this embodiment is described by taking ordinary high-strength H-shaped steel strips as an example.

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in Figure 34, its herringbone-shaped lateral force-resistant member is composed of diagonal braces 19 and cantilever rods 21; the cantilever rods 21 are connected to the truss beams by welding and bolts 18, the diagonal brace 19 and the cantilever rod 21 are connected by bolts through the cover plate; the cross section of the diagonal brace is H-shaped steel, or I-shaped steel, double-channel steel composite section, and double-angle steel composite cross-section; the diagonal brace is an ordinary high-strength Steel strips, or buckling-resistant energy-dissipating supports or energy-dissipating dampers; this embodiment is described by taking ordinary high-strength H-shaped steel strips as an example.

In the prefabricated steel structure eccentrically supported frame system of the present invention, as shown in Figure 35, its V-shaped lateral force-resisting member is composed of a diagonal brace 19 and a cantilever rod 21; the cantilever rod 21 is connected to the truss beam by welding and bolts 18, the diagonal brace 19 and the cantilever rod 21 are connected by bolts through the cover plate; the cross section of the diagonal brace is H-shaped steel, or I-shaped steel, double-channel steel composite section, and double-angle steel composite cross-section; the diagonal brace is an ordinary high-strength Steel strips, or buckling-resistant energy-dissipating supports or energy-dissipating dampers; this embodiment is described by taking ordinary high-strength H-shaped steel strips as an example.

In the prefabricated steel structure eccentric support frame system according to the present invention, as shown in accompanying drawing 36, its single-slope type anti-lateral force member is made up of diagonal brace 19 and cantilever rod 21; Cantilever rod 21 is connected to On the truss beam 18, the diagonal brace 19 and the cantilever rod 21 are connected by bolts through the cover plate; the cross section of the diagonal brace is H-shaped steel, or I-shaped steel, double-channel steel composite cross-section, and double-angle steel composite cross-section; the diagonal brace is a common High-strength steel strips, or buckling-resistant energy-dissipating supports or energy-dissipating dampers; this embodiment is described by taking ordinary high-strength H-shaped steel strips as an example.

In the above-mentioned prefabricated steel structure eccentrically supported frame system, as shown in Figure 37-40, the exploded detailed diagrams of the joints between the diagonal brace 19 and the frame are respectively made.

Claims (5)

1. an assembling type steel structure accentric support frame system, comprises assembling truss floor, assembling post and accentric support component, it is characterized in that:

Described assembling truss floor comprises lattice truss beam, junction plate and floor, described lattice truss beam is connected with other lattice truss beams by junction plate, form truss floor slab bottoms framework, again form bracing is connected on the truss plate under(-)chassis, form assembling truss floor; Described assembling truss floor is prefabricated in the factory, and at the construction field (site) assembling truss floor is spliced to form composite steel frame construction mutually by the bean column node on its beam-ends shrouding and assembling post; On the basis of described steel framed structure, accentric support component is connected to girder truss in frame structural beam flaggy or column bottom as lateral resistant member; Described assembling truss plate, assembling post and accentric support component are all prefabricated in the factory, and job site is assembled by bolt;

Its assembling post has three kinds of forms, is respectively two to assembling post, three-dimensional assembling post and four-way assembling post; Structural steel connecting member (22) with ribbing for two panels is welded in box column (6) adjacent both sides thus forms two to assembling post; Three structural steel connecting members with ribbing (22) are welded in box column (6) three limit thus form three-dimensional assembling post; Four structural steel connecting members with ribbing (22) are welded in box column (6) four limit thus form four-way assembling post; Wherein structural steel connecting member with ribbing (22) web has bolt hole, convenient and beam upper-end closing plate bolt splices; Described box column upper end inwall is welded with lower prop junction plate (8), is inserted in the box column inwall of upper end, by bolt by upper and lower beam-to-column joint during upper lower prop splicing by junction plate (8).

2. a kind of assembling type steel structure accentric support frame system according to claim 1, is characterized in that: described assembling truss floor comprises three kinds of specifications, is respectively A plate, B plate and C plate;

Described A plate comprises bean column node (7), length and width beam (10), wide beam (11), narrow beam (12), secondary beam (13), junction plate I (16), junction plate II (17) and floor (14); Wide beam (11) is mutually vertical with length and width beam (10), and all by beam-ends shrouding, bolt is adopted to be connected with the channel-section steel connecting plate on two-way beam Column border node, and the upper and lower end face place of junction is welded with a plate I (16) respectively, the two ends of junction plate I (16) are connected on the top-bottom chord of wide beam (11) and length and width beam (10); The other end of wide beam (11) is connected with the narrow beam (12) parallel with length and width beam (10), the top-bottom chord of wide beam (11) described end and narrow beam (12) end is weldingly connected respectively, and wide beam (11) and narrow beam (12) are connected by junction plate II (17) again, and wide beam (11) is all weldingly connected with two pieces of junction plate II (17) with the top-bottom chord of narrow beam (12); Secondary beam (13) is connected to described length and width beam (10) and the other end of narrow beam (12), relative with wide beam (11) level, the top-bottom chord of secondary beam (13) end, one end and narrow beam (12) the other end is weldingly connected respectively, and is connected by two the junction plate II (17) being connected to top-bottom chord place between secondary beam (13) with narrow beam (12) again; Two junction plate I (16) by being connected to top-bottom chord place between secondary beam (13) other end end with length and width beam (10) are connected; Described length and width beam (10), wide beam (11), narrow beam (12), secondary beam (13) form a rectangular frame; Two described rectangular frames carry out the framework connecting and composing a splicing; Secondary beam (13) in two rectangular frames aligns and adds cover plate bolt by bolt or upper chord top and connects, and two length and width beams (10) are positioned on straight line, two narrow beams (12) are positioned on straight line; The upper and lower side of two length and width beams (10) all adopts bolt to be connected by the structural steel connecting member with ribbing in beam-ends shrouding and three-dimensional bean column node two relative directions, and two described secondary beams (13) are connected on the structural steel connecting member with ribbing vertical with described both direction on three-dimensional bean column node; Described framework is connected with two pieces of floors (14) by girder truss upper chord upper anchoring;

Described B plate comprises wide beam (11), narrow beam (12), secondary beam (13), junction plate II (17), junction plate I (16) and floor (14), wide beam (11) is mutually vertical with narrow beam (12), the top-bottom chord of wide beam (11) end and narrow beam (12) end is weldingly connected, and be connected by junction plate II (17), and wide beam (11) is all weldingly connected with two pieces of junction plate II (17) with the top-bottom chord of narrow beam (12) again; The other end of wide beam (11) is connected with another root narrow beam (12) parallel with described narrow beam (12) by junction plate I (16), and wide beam (11) is all weldingly connected with two pieces of junction plate I (16) with the top-bottom chord of narrow beam (12); Secondary beam (13) is connected to the other end of two described two narrow beams (12), relative with wide beam (11) level, secondary beam (13) is identical with the type of attachment of two narrow beams (12) with described wide beam (11) with the type of attachment of two narrow beams (12); Described wide beam (11), two narrow beams (12), secondary beams (13) form a rectangular frame; Two described rectangular frames carry out the framework connecting and composing a splicing; Secondary beam (13) alignment in two rectangular frames also adds cover plate bolt by bolt or upper chord top and connects, and the relative two narrow beams (12) of rectangular frame level two piece narrow beams (12) relative with another length direction framework level lay respectively on straight line;

Described C plate comprises bean column node (7), wide beam (11), narrow beam (12), secondary beam (13), junction plate II (17), junction plate I (16) and floor (14), wide beam (11) is mutually vertical with narrow beam (12), and all by beam-ends shrouding, bolt is adopted to be connected with the adjacent structural steel connecting member with ribbing of two on three-dimensional bean column node, and the upper and lower end face place of junction is welded with a plate I (16) respectively, the two ends of junction plate I (16) are connected on the top-bottom chord of wide beam (11) and narrow beam (12), the other end of wide beam (11) is by being welded to connect another root narrow beam (12) parallel with narrow beam (12), the top-bottom chord of wide beam (11) end and the narrow beam of this root (12) end is weldingly connected respectively, and wide beam (11) and narrow beam (12) are connected by junction plate II (17) again, and wide beam (11) is all weldingly connected with two pieces of junction plate II (17) with the top-bottom chord of narrow beam (12), secondary beam (13) is connected to the other end of two described narrow beams (12), relative with wide beam (11) level, the top-bottom chord of secondary beam (13) end and narrow beam (12) the other end is weldingly connected respectively, and is connected by two the junction plate II (17) being connected to top-bottom chord place between secondary beam (13) with narrow beam (12) again, two junction plate I (16) by being connected to top-bottom chord place between secondary beam (13) other end end with narrow beam (12) are connected, described wide beam (11), two narrow beams (12), secondary beams (13) form a rectangular frame, two described rectangular frames carry out the under(-)chassis connecting and composing a splicing, secondary beam (13) alignment in two rectangular frames also adds cover plate bolt by bolt or upper chord top and connects, and the relative two narrow beams (12) of rectangular frame level two piece narrow beams (12) relative with another length direction framework level lay respectively on straight line, the upper and lower side of two narrow beams (12) all adopts bolt to be connected by the structural steel connecting member with ribbing in beam-ends shrouding and four-way bean column node two relative directions, and two described secondary beams (13) are connected on the structural steel connecting member with ribbing vertical with described both direction on three-dimensional bean column node, described under(-)chassis is connected with two pieces of floors (14) by girder truss upper chord upper anchoring,

In a kind of assembling type steel structure accentric support frame system, described A plate and B plate, by A plate and the alignment of B plate level, one end of junction plate II (17) there is is to be spliced by beam-ends shrouding bolt the wide beam (11) of one end of tie-beam Column border node (7) and B plate that do not have of the wide beam (11) of A plate; Beam-ends shrouding is spliced by bolt by the one end of junction plate II (17) that has of the secondary beam (13) of one end of tie-beam Column border node (7) and B plate that do not have of the secondary beam (13) of A plate; Add cover plate bolt at the narrow beam (12) of A plate and narrow beam (12) the gusset plate place of B plate by bolt or upper chord top single-beam is spliced every one section of fixed range, make two panels single-beam be connected to become twin beams; Then cover plate is added at splicing node upper and lower surface bolt; Thus complete the splicing of A plate and B plate;

In a kind of assembling type steel structure accentric support frame system, described B plate and C plate, by B plate and C plate level alignment, by the wide beam (11) of B plate have one end of junction plate I (16) and the three-dimensional bean column node of C plate expose structural steel connecting member with ribbing by beam-ends shrouding adopt bolt be connected; By the secondary beam (13) of B plate have one end of junction plate I (16) and the four-way bean column node of C plate expose structural steel connecting member with ribbing by beam-ends shrouding adopt bolt be connected; All adopt bolt to be connected by the structural steel connecting member with ribbing in beam-ends shrouding and four-way bean column node two relative directions the upper and lower side of two of B plate narrow beams (12), adopt bolt to be connected with the described vertical structural steel connecting member with ribbing of structural steel connecting member with ribbing that exposes by beam-ends shrouding with on the three-dimensional bean column node of C plate respectively by beam-ends shrouding the other end of the narrow beam (12) of B plate; Add cover plate bolt at the narrow beam (12) of B plate and narrow beam (12) the gusset plate place of C plate by bolt or upper chord top single-beam is spliced every one section of fixed range, make two panels single-beam be connected to become twin beams; Then cover plate is added at splicing node upper and lower surface bolt; Thus complete the splicing of B plate and C plate.

3. a kind of assembling type steel structure accentric support frame system according to claim 1, it is characterized in that: the how high-rise assembling type steel structure framework-eccentrical braces of industrialization, accentric support component is made up of diagonal brace (19) and cantilever lever, cantilever lever is connected to steel framed structure girder truss (18) top-bottom chord place by being welded to connect in the column bottom of steel framed structure or by welding and bolt in factory, diagonal brace (19) is connected by cover plate bolt at the construction field (site) with the cantilever lever of every floor top and bottom, beam forms active beam link, form framework-eccentrically braces structure, diagonal brace section form is H profile steel, or uses i shaped steel, double flute steel compound section, dual-angle steel combined section, described diagonal brace is rolled products of ordinary high-strength steel plate strip, or uses buckling-restrained energy-dissipation or passive damper brace.

4. a kind of assembling type steel structure accentric support frame system according to claim 1, it is characterized in that: in described assembling type steel structure accentric support frame system, involved beam splices by top-bottom chord (1), web member (2) and gusset plate (3) girder truss formed, wherein top-bottom chord uses angle steel, or use U-steel, or user's steel pipe, web member (2) uses angle steel, and web member becomes 30 degree of-60 angle spent with chord member; And be divided into single-beam and twin beams, single-beam arranges connecting hole every one section of fixed range, be convenient to bolt or upper chord top when the splicing of plate and plate add cover plate bolt and two panels single-beam is spliced become twin beams, for twin beams, web member (2), top-bottom chord use bolt be connected or use welding with the connection of gusset plate (3), all complete in factory process.

5. a kind of assembling type steel structure accentric support frame system according to claim 1, is characterized in that: described floor uses profiled steel sheet combination floor, or reinforced concrete floor, or OSB shaving board.