CN217557170U - Assembled prestressed beam column structure - Google Patents

Assembled prestressed beam column structure Download PDF

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Publication number
CN217557170U
CN217557170U CN202220239092.9U CN202220239092U CN217557170U CN 217557170 U CN217557170 U CN 217557170U CN 202220239092 U CN202220239092 U CN 202220239092U CN 217557170 U CN217557170 U CN 217557170U
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beam section
section
cantilever
bolt
flange
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CN202220239092.9U
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Chinese (zh)
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刘春阳
巩振凡
张汝超
李秀领
赵兴权
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Shandong Jianzhu University
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Shandong Jianzhu University
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Abstract

The utility model discloses an assembled prestressed beam column structure, cantilever beam section and post welded fastening, concatenation beam section is fixed with the cantilever beam section, cantilever beam section and concatenation beam section all adopt the I-steel, the tip butt joint of cantilever beam section and concatenation beam section and have the clearance, the upper and lower beam wing plate of cantilever beam section and concatenation beam section is connected through beam flange splice plate respectively, be provided with the rubber pad between beam flange splice plate and the beam wing plate, beam flange splice plate and beam wing plate are through first bolted connection, the hole that is used for installing first bolt on the beam flange splice plate that is located cantilever beam section top is the round hole with first bolt looks adaptation, the hole that is used for installing first bolt on the beam flange splice plate that is located concatenation beam section top is the elliptical aperture. The flange splicing plates are firstly damaged during an earthquake, beam components are protected, the flange splicing plates can be replaced after the earthquake, replacement cost is reduced, and a rubber pad is arranged between the flange splicing plates and the flange plates, so that self-recovery capability of the node is improved.

Description

Assembled prestressed beam column structure
Technical Field
The utility model relates to a beam column structure, in particular to assembled prestressed beam column structure.
Background
The beam-column joint is one of the most important joints of an assembly structure, and the existing cantilever beam section splicing joint has high connection strength and insufficient ductility rotation capacity; for nodes with improved ductility, the node strength is weakened, and the ductility corner is difficult to recover.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the assembled prestressed beam-column structure is high in connection strength and strong in ductility rotation capacity.
In order to solve the technical problem, the utility model discloses a post and roof beam, the roof beam includes cantilever section and concatenation roof beam section, cantilever section and post welded fastening, concatenation roof beam section is fixed with the cantilever section, cantilever section and concatenation roof beam section all adopt the I-steel, the tip butt joint of cantilever section and concatenation roof beam section and have the clearance, the upper and lower beam wing board of cantilever section and concatenation roof beam section is connected through beam flange splice plate respectively, be provided with the rubber pad between beam flange splice plate and the beam wing board, beam flange splice plate and beam wing board pass through first bolted connection, the hole that is used for installing first bolt on the beam flange splice plate that is located cantilever section top is the round hole with first bolt looks adaptation, the hole that is used for installing first bolt on the beam flange splice plate that is located concatenation roof beam section top is the elliptical aperture, the major axis of elliptical aperture is in the length direction of concatenation roof beam section, the minor axis direction and the first bolt looks adaptation of elliptical aperture, the web of cantilever section and concatenation roof beam section pass through the web and connect the web through second bolted connection.
Preferably, the first bolt is in threaded connection with the beam wing plate, and a nut for pressing the beam wing plate is arranged on the first bolt.
Preferably, web splicing plates are arranged on two sides of the beam web, the web splicing plates and holes for connecting the beam web and the second bolt are round holes matched with the second bolt, and a compression nut is arranged on the web splicing plate on one side of the second bolt.
Preferably, post and cantilever beam section between be connected with prestressed reinforcement, the one end welding that the cantilever beam section kept away from the post has the end plate, end plate middle part be provided with the preformed hole, the web splice plate alternates in the preformed hole, has the clearance between end plate and the concatenation roof beam section. The prestressed reinforcement effectively improves the bending resistance and rigidity of the beam-column joint, and further improves the energy consumption capacity of the member.
Preferably, the gap between the end plate and the spliced beam section is not less than half of the difference between the major axis and the minor axis of the elliptical hole. So that the bolt can complete the designed splicing sliding.
Preferably, the number of the prestressed reinforcements is two, the two prestressed reinforcements penetrate through the column and the end plate, the prestressed reinforcements are pre-tensioned by adopting a post-tensioning method, and the two prestressed reinforcements are respectively positioned on two sides of a beam web of the cantilever beam section.
The utility model has the advantages that: the utility model discloses during the use, the post carries out welded connection with the cantilever beam section, cantilever beam section and concatenation roof beam section are adopted the bolt fastening, reach the purpose that the plasticity hinge moved outward, and the roof beam edge of a wing splice plate above concatenation roof beam section pterygoid lamina adopts elliptical hole and bolted connection, make the connected node of here easy atress deformation produce and slide, the earthquake comes temporarily, the node bolt can slide to the pore wall edge along the elliptical hole gradually, the power consumption mode is changed into the friction by the friction power consumption, pressure-bearing power consumption goes on simultaneously, change the pressure-bearing power consumption at last, improve the power consumption ability and the ductility rotation ability of node, concatenation roof beam section edge of a wing splice plate reserves the elliptical hole, ordinary round hole is reserved to roof beam wing panel and cantilever beam section edge of a wing splice plate, when making the earthquake, the edge of a wing splice plate takes place earlier and destroys, the protection beam member, it can to change the splice plate after the earthquake, the replacement cost reduces, ordinary round hole is reserved to roof beam web and roof beam web splice plate, guarantee can bear certain shear force, set up the rubber pad between the edge of a wing plate, improve the self-resuming ability of node.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of the right side view of the structure of FIG. 1;
fig. 3 is a schematic top view of the present invention;
FIG. 4 isbase:Sub>A schematic view of section A-A of FIG. 1;
FIG. 5 is an enlarged view of the connection structure between the flange splicing plate and the first bolt of the present invention;
in the figure: 1. a column; 2. a cantilever beam section; 3. splicing the beam sections; 4. a beam wing plate; 5. a web; 6. a beam flange splice plate; 7. a web splice plate; 8. a first bolt; 9. a rubber pad; 10. an end plate; 11. prestressed reinforcement, 12, second bolt.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly.
As shown in fig. 1-5, an assembled prestressed beam-column structure, including post 1, cantilever beam section 2 and concatenation beam section 3, cantilever beam section 2 and post 1 welded fastening, concatenation beam section 3 is fixed mutually with cantilever beam section 2, cantilever beam section 2 and concatenation beam section 3 all adopt the I-steel, cantilever beam section 2 has end plate 10 away from the one end welding of post 1, end plate 10 middle part is provided with the preformed hole, be connected with prestressed reinforcement 11 between post 1 and the end plate 10, prestressed reinforcement 11 has two, two prestressed reinforcement 11 all run through post 1 and end plate 10, prestressed reinforcement 11 adopts the pretension of post-tensioning method, two prestressed reinforcement 11 are in the both sides of the web 5 of cantilever beam section 2 respectively. The web splicing plate 7 is inserted into a prepared hole of the end plate 10, and a gap is reserved between the end plate 10 and the spliced beam section 3.
Cantilever beam section 2 and splice beam section 3 go up the underbeam pterygoid lamina 4 and connect through beam flange splice plate 6 respectively, be provided with rubber pad 9 between beam flange splice plate 6 and the beam pterygoid lamina 4, beam flange splice plate 6 and beam pterygoid lamina 4 are connected through first bolt 8, the hole that is used for installing first bolt 8 on the beam flange splice plate 6 that is located 2 tops of cantilever beam section is the round hole with 8 looks adaptations of first bolt, the hole that is used for installing first bolt 8 on the beam flange splice plate 6 that is located 3 tops of splice beam section is the elliptical aperture, the major axis of elliptical aperture is in the length direction of splice beam section 3, the minor axis direction and the 8 looks adaptations of first bolt of elliptical aperture, first bolt 8 and beam pterygoid lamina 4 threaded connection, be provided with the nut that compresses tightly roof beam pterygoid lamina 4 on the first bolt 8. The cantilever beam section 2 and the beam web 5 of the spliced beam section 3 are connected through a web splicing plate 7, and the web splicing plate 7 and the beam web 5 are connected through a second bolt 12. Web splicing plates 7 are arranged on two sides of the beam web 5, the web splicing plates 7 and holes formed by connecting the beam web 5 and the second bolts 12 are round holes matched with the second bolts 12, and gland nuts are arranged on the web splicing plates 7 on one side of the second bolts 12. The bolt is matched with the hole, namely the bolt is in threaded fit with the hole or attached to the cylindrical surface, or the bolt is attached to the specified direction of the hole.
The gap between the end plate 10 and the spliced beam section 3 is not less than half the difference between the major and minor axes of the elliptical holes.
The working principle is as follows:
under the normal use state, the node that concatenation roof beam section 3 and cantilever beam section 2 concatenation can bear the load that the building transmitted, first bolt 8 does not take place to slide, under the earthquake action, through setting up prestressing steel 11, under the effect of prestressing force, can make the component recover initial condition as far as possible after the earthquake, have from the reset effect, reduce the residual deformation, when the load that the structure bore exceeded the design load, first bolt 8 progressively slides to the pore wall edge, the power consumption mode is gone on simultaneously by friction power consumption change friction, pressure-bearing power consumption, change pressure-bearing power consumption finally into, rubber pad 9 can provide certain self-resuming ability. The novel splicing node not only provides large ductile rotation capacity and energy consumption capacity, but also has certain self-recovery capacity, and the anti-seismic performance of the structure is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an assembled prestressed beam column structure, includes post and roof beam, its characterized in that: the beam comprises a cantilever beam section and a spliced beam section, the cantilever beam section is welded and fixed with a column, the spliced beam section is fixed with the cantilever beam section, the cantilever beam section and the spliced beam section all adopt I-steel, the end parts of the cantilever beam section and the spliced beam section are in butt joint and have gaps, upper and lower beam flanges of the cantilever beam section and the spliced beam section are respectively connected through beam flange splicing plates, rubber pads are arranged between the beam flange splicing plates and the beam flanges, the beam flange splicing plates and the beam flanges are connected through first bolts, holes for installing the first bolts on the beam flange splicing plates above the cantilever beam section are round holes matched with the first bolts, holes for installing the first bolts on the beam flange splicing plates above the spliced beam section are elliptical holes, the long shafts of the elliptical holes are in the length direction of the spliced beam section, the short shaft direction of the elliptical holes is matched with the first bolts, the beam webs of the cantilever beam section and the spliced beam section are connected through webs, and the webs and the beam webs are connected through second bolts.
2. The assembled prestressed beam-column structure defined in claim 1, wherein: the first bolt is in threaded connection with the beam wing plate, and a nut for pressing the beam wing plate is arranged on the first bolt.
3. The assembled prestressed beam-column structure defined in claim 1, wherein: web splicing plates are arranged on two sides of the beam web, holes formed in the web splicing plates and connected with the beam web and the second bolt are round holes matched with the second bolt, and a compression nut is arranged on the web splicing plate on one side of the second bolt.
4. The assembled prestressed beam-column structure of claim 1, 2 or 3, wherein: the post and cantilever beam section between be connected with the prestressing steel, the one end welding that the cantilever beam section is kept away from the post has the end plate, end plate middle part be provided with the preformed hole, the web splice plate alternates in the preformed hole, the end plate has the clearance with splicing between the roof beam section.
5. The assembled prestressed beam-column structure of claim 4, wherein: the gap between the end plate and the spliced beam section is not less than half of the difference between the long axis and the short axis of the elliptical hole.
6. The assembled prestressed beam-column structure as claimed in claim 4, wherein: the two prestressed reinforcements penetrate through the column and the end plate, are pre-tightened by adopting a post-tensioning method, and are respectively positioned on two sides of a beam web of the cantilever beam section.
CN202220239092.9U 2022-01-28 2022-01-28 Assembled prestressed beam column structure Active CN217557170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220239092.9U CN217557170U (en) 2022-01-28 2022-01-28 Assembled prestressed beam column structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220239092.9U CN217557170U (en) 2022-01-28 2022-01-28 Assembled prestressed beam column structure

Publications (1)

Publication Number Publication Date
CN217557170U true CN217557170U (en) 2022-10-11

Family

ID=83469503

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220239092.9U Active CN217557170U (en) 2022-01-28 2022-01-28 Assembled prestressed beam column structure

Country Status (1)

Country Link
CN (1) CN217557170U (en)

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