CN214116299U - 'pi' -shaped stud for arranging steel bars in steel-concrete composite beam - Google Patents
'pi' -shaped stud for arranging steel bars in steel-concrete composite beam Download PDFInfo
- Publication number
- CN214116299U CN214116299U CN202022924549.3U CN202022924549U CN214116299U CN 214116299 U CN214116299 U CN 214116299U CN 202022924549 U CN202022924549 U CN 202022924549U CN 214116299 U CN214116299 U CN 214116299U
- Authority
- CN
- China
- Prior art keywords
- steel
- concrete
- truncated cone
- steel box
- circular truncated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a "pi" shape toggle pin that is arranged in steel-concrete combination roof beam and can arranges the reinforcing bar sets up on the steel box roof beam of steel-concrete combination roof beam, and the upper end of steel box roof beam is provided with steel box roof beam, has pour concrete slab, its characterized in that on the steel box roof beam: an n-shaped stud is fixed on the top plate of the steel box girder, a circular truncated cone nut for increasing the contact area with a concrete slab is arranged at the upper end of the stud, two symmetrical screw rods are fixed at the lower end of the circular truncated cone nut, and the screw rods are vertically fixed on the top plate of the steel box girder; four fixing terminals are uniformly fixed on the side surface of the circular truncated cone nut, and included angles among the fixing terminals are all 90 degrees; a clamping groove is formed between the lower end faces of the circular truncated cone nuts between the two symmetrical fixed terminals, and reinforcing steel bars are arranged in the clamping groove. The stud enables the reinforced concrete and the steel box girder to deform cooperatively better, and stabilizes the bearing capacity of the steel-concrete composite girder.
Description
Technical Field
The utility model relates to a bridge is pour in-process and is consolidated and use device, more specifically the theory that says so especially relates to one kind and is arranged in steel-concrete composite beam can arrange "pi" shape toggle pin of reinforcing bar.
Background
In recent years, steel-concrete composite beams have been widely used in overpasses and building structures in China, and have been developed in the direction of large span. The steel-concrete combined beam perfectly combines the excellent tensile property of a steel structure and the good compression resistance of a concrete structure, and is characterized by light dead weight, large rigidity, and good stability and integrity. The stud is an important structure for connecting the steel box girder and the concrete slab, mainly has the functions of resisting longitudinal sliding generated under the action of load at the interface of the steel and the concrete, preventing the steel and the concrete from being separated due to the longitudinal sliding, resisting the drawing force generated under the action of load by the stud and enhancing the synergistic effect of the steel and the concrete structure in the stress process.
The current common peg configurations have several problems during use:
1. the welding area between the root of the common stud and the steel box girder panel is small, the connectivity is poor, and the stud is easy to fall off under the action of heavy load due to the bearing of larger drawing force.
2. The tops of the common studs are only connected with plain concrete, the contact area between the nuts and the concrete is small, the stress of the concrete is concentrated under the action of load, and the concrete is easy to crack locally under the repeated action, so that the steel box beam and the concrete slab are locally separated, and the bearing capacity of the steel-concrete combined beam is sharply reduced.
3. The bottom of the common stud screw is cylindrical, the contact part between the middle of the stud and the beam body is not easy to weld during welding, and the phenomenon of welding leakage often occurs.
Disclosure of Invention
The utility model provides an overcome above-mentioned technical problem's shortcoming, provide one kind and be arranged in steel-concrete composite beam "pi" shape toggle pin of reinforcing bar.
The utility model discloses a "pi" shape toggle pin that is arranged in steel-concrete combination roof beam and can arranges the reinforcing bar sets up on the steel box roof beam of steel-concrete combination roof beam, and the upper end of steel box roof beam is provided with steel box roof beam, has pour concrete slab, its characterized in that on the steel box roof beam: an n-shaped stud is fixed on the top plate of the steel box girder, a circular truncated cone nut for increasing the contact area with a concrete slab is arranged at the upper end of the stud, two symmetrical screw rods are fixed at the lower end of the circular truncated cone nut, and the screw rods are vertically fixed on the top plate of the steel box girder; four fixing terminals are uniformly fixed on the side surface of the circular truncated cone nut, and included angles among the fixing terminals are all 90 degrees; a clamping groove is formed between the lower end faces of the circular truncated cone nuts between the two symmetrical fixed terminals, and reinforcing steel bars are arranged in the clamping groove.
The utility model discloses a set up the upper end in concrete slab's reinforcing bar net when round platform nut uses for can arranging "pi" shape toggle pin of reinforcing bar in the steel-concrete combination roof beam.
The utility model discloses a "pi" shape toggle pin that can arrange the reinforcing bar in being used for steel-concrete combination roof beam, the bottom of screw rod sets up to the shape of falling the platform.
The utility model discloses a "pi" shape toggle pin that is arranged in steel-concrete combination roof beam and can arranges the reinforcing bar, the reinforcing bar stretches out the outer end of round platform nut after passing the draw-in groove, is connected with the fixed terminal through the steel wire ligature.
The utility model has the advantages that: the utility model discloses a round platform nut size is great, strengthens with the concrete slab contact, can improve the tensile pull-out performance of peg. The bottom of the circular truncated cone nut is provided with a clamping groove, the position of the steel bar is fixed, the steel bar is not easy to slide, and the integrity is good. The stud is not only connected with concrete, but also connected with the reinforcing mesh into a whole, thereby greatly reducing the possibility of local damage of the beam body under the load action due to stress concentration and improving the anti-pulling and anti-shearing performances of the stud. The bottom of the screw rod is arranged to be inverted-table-shaped, so that the welding is easy, and the problem of welding leakage is solved. The stud enables the reinforced concrete and the steel box girder to deform cooperatively better, and stabilizes the bearing capacity of the steel-concrete composite girder.
Drawings
Fig. 1 is a schematic structural view of an n-shaped stud for arranging reinforcing bars in a steel-concrete composite beam according to the present invention;
fig. 2 is a schematic structural view of the stud of the present invention;
fig. 3 is a top view of the peg of the present invention.
In the figure: 1 fixed terminal, 2 round platform nuts, 3 draw-in grooves, 4 screw rods, 5 pegs, 6 concrete slabs, 7 reinforcing bars, 8 steel box girder roof boards, 9 steel box girders.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, the structural schematic diagram of the "pi" shaped stud for arranging the steel bar in the steel-concrete composite beam of the present invention is shown, the overall structural schematic diagram of the stud is shown in fig. 2 and 3, the "pi" shaped stud for arranging the steel bar in the steel-concrete composite beam is shown, the "pi" shaped stud is arranged on the steel box beam 9 of the steel-concrete composite beam, the upper end of the steel box beam 9 is provided with a steel box beam top plate 8, and a concrete slab 6 is poured on the steel box beam top plate 8. An n-shaped stud 5 is fixed on the top plate 8 of the steel box girder, a circular truncated cone nut 2 used for increasing the contact area with a concrete plate 6 is arranged at the upper end of the stud 5, two symmetrical screw rods 4 are fixed at the lower end of the circular truncated cone nut 2, and the screw rods 4 are vertically fixed on the top plate 8 of the steel box girder; four fixed terminals 1 are uniformly fixed on the side surface of the circular truncated cone nut 2, and included angles among the fixed terminals 1 are all 90 degrees; a clamping groove 3 is formed between the lower end faces of the circular truncated cone nuts 2 between the two symmetrical fixed terminals 1, and a steel bar 7 is arranged in the clamping groove 3.
The round table nut 2 is arranged at the upper end of a reinforcing mesh in a concrete plate 6 when in use, and the round table nut 2 is mainly used for connecting two screw rods 4 and forms a main body part of the stud 5 together with the screw rods 4. The contact area of the stud 5 and the concrete slab 6 is increased due to the existence of the circular truncated cone nut 2, the circular truncated cone nut 2 is arranged on the upper portion of the reinforcing mesh, the concrete slab 6, the reinforcing mesh and the steel box girder are connected into a whole, the structural integrity is improved, the anti-pulling performance of the stud 5 is enhanced, and the synergistic effect of the steel and the concrete structure in the stress process is guaranteed.
The bottom of the screw rod 4 is arranged to be inverted-table-shaped, so that the welding is convenient, the contact area between the screw rod 4 and the steel box girder top plate 8 is enlarged, and the anti-pulling and anti-shearing performances of the stud 5 are improved. The two screws 4 ensure that the stud 5 is not easy to deform and incline, and improve the stability of the stud 5.
The reinforcing bar 7 passes and stretches out the outer end of round platform nut 2 behind draw-in groove 3, is connected with fixed terminal 1 through the steel wire ligature, when reinforcing bar 7 is fixed on round platform nut 2, can hug closely draw-in groove 3 with reinforcing bar 7, can accomplish reinforcing bar 7 location fast and lay, and is difficult for sliding behind the reinforcing bar 7 ligature. The direction of the clamping groove 3 is adjusted according to the direction of the steel bar 7 passing through the stud 5, and a clamping groove 3 shaped like a Chinese character 'yi' is reserved in the position of the single steel bar 7.
The utility model discloses during the use, weld the peg 5 and the roof beam body according to preset position, the screw rod 4 perpendicular to steel box girder roof 8 welding of peg 5 passes two screw rods 4 between and arranges in 2 bottoms of round platform nut, puts into the draw-in groove of round platform nut 2, binds together reinforcing bar 7 and fixed terminal 1 with the iron wire. And (5) finishing the installation of the stud 5, and pouring the concrete slab 6 after finishing the binding of the reinforcing steel bars 7.
Claims (4)
1. The utility model provides a can arrange "pi" shape toggle pin of reinforcing bar for in steel-concrete composite beam, sets up on steel box girder (9) of steel-concrete composite beam, and the upper end of steel box girder (9) is provided with steel box girder roof board (8), has pour concrete slab (6) on steel box girder roof board (8), its characterized in that: an n-shaped stud (5) is fixed on the steel box girder top plate (8), a circular truncated cone nut (2) used for increasing the contact area with a concrete plate (6) is arranged at the upper end of the stud (5), two symmetrical screw rods (4) are fixed at the lower end of the circular truncated cone nut (2), and the screw rods (4) are vertically fixed on the steel box girder top plate (8); four fixing terminals (1) are uniformly fixed on the side surface of the circular truncated cone nut (2), and included angles among the fixing terminals (1) are all 90 degrees; a clamping groove (3) is formed between the lower end faces of the circular truncated cone nuts (2) between the two symmetrical fixed terminals (1), and reinforcing steel bars (7) are arranged in the clamping groove (3).
2. The "Π" shaped stud for steel bar deployment in steel-concrete composite beams according to claim 1, wherein: the circular truncated cone nut (2) is arranged at the upper end of a reinforcing mesh in a concrete slab (6) when in use.
3. The "Π" shaped stud for steel bar deployment in steel-concrete composite beams according to claim 1, wherein: the bottom of the screw rod (4) is in an inverted-table shape.
4. The "Π" shaped stud for steel bar deployment in steel-concrete composite beams according to claim 1, wherein: and the reinforcing steel bars (7) penetrate through the clamping grooves (3) and then extend out of the outer ends of the circular truncated cone nuts (2), and are connected with the fixed terminals (1) through steel wire binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022924549.3U CN214116299U (en) | 2020-12-09 | 2020-12-09 | 'pi' -shaped stud for arranging steel bars in steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022924549.3U CN214116299U (en) | 2020-12-09 | 2020-12-09 | 'pi' -shaped stud for arranging steel bars in steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214116299U true CN214116299U (en) | 2021-09-03 |
Family
ID=77509485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022924549.3U Active CN214116299U (en) | 2020-12-09 | 2020-12-09 | 'pi' -shaped stud for arranging steel bars in steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214116299U (en) |
-
2020
- 2020-12-09 CN CN202022924549.3U patent/CN214116299U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107288218B (en) | Beam column node of assembled reinforced concrete frame structure and manufacturing method thereof | |
| CN100480482C (en) | External transverse prestressed steel reinforced concrete beam | |
| CN101775775B (en) | Combined bridge with self-anti-cracking function and construction method thereof | |
| CN214006197U (en) | Assembling tool type truss and assembling truss laminated slab with end inclined ribs | |
| CN200985489Y (en) | Built-in inclined support rigid frame prestressed concrete variable cross-section box beam bridge | |
| CN205530682U (en) | Precast prestressed frame construction | |
| CN214116299U (en) | 'pi' -shaped stud for arranging steel bars in steel-concrete composite beam | |
| CN211548054U (en) | Steel construction cantilever beam column connected node | |
| CN108729546A (en) | A kind of dry type beam-to-column joint structure for prefabricated assembling type reinforced concrete building | |
| CN218346525U (en) | Prestressed large-span concrete floor | |
| CN100491638C (en) | Built-in oblique leg rigid-frame prestress concrete variable cross-section box girder bridge and construction method thereof | |
| CN217237515U (en) | Precast concrete stair loading test device | |
| CN214739138U (en) | Fabricated reinforced truss support-free template | |
| CN211899177U (en) | Support-free laminated slab comprising truss and truss machining device | |
| CN101725182A (en) | Shearing connecting piece | |
| CN112127282B (en) | Main pier steel structure of super bridge | |
| CN211341358U (en) | Assembling tool type truss laminated slab | |
| CN211446552U (en) | Steel-concrete combined section structure of steel box arch bridge arch rib | |
| CN210530084U (en) | Open type steel reinforced concrete composite truss floor | |
| CN203626154U (en) | Truss reinforcing bar stair | |
| CN209178826U (en) | A kind of Sarasota constituting bridge | |
| CN208650397U (en) | Steel bar girder made of a kind of resistance spot welding that shear-carrying capacity is high | |
| CN108104349B (en) | Oblique compression bar truss beam chord beam combined structure and implementation method | |
| CN202017257U (en) | Large-span transformational structure for high-rise building | |
| CN216809567U (en) | Pier tower beam consolidation node for connecting steel beam and reinforced concrete tower pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250357 No. 5001 Haitang Road, Science Park, Changqing University, Jinan City, Shandong Province Patentee after: SHANDONG JIAOTONG University Patentee after: Donghui Testing and Certification Group Co.,Ltd. Address before: 250357 No. 5001 Haitang Road, Science Park, Changqing University, Jinan City, Shandong Province Patentee before: SHANDONG JIAOTONG University Patentee before: SHANDONG DONGHUI ENGINEERING TESTING CO.,LTD. |