CN212426701U - Double-diabolo-shaped steel-concrete combined pier beam connecting structure - Google Patents
Double-diabolo-shaped steel-concrete combined pier beam connecting structure Download PDFInfo
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- CN212426701U CN212426701U CN202021983997.4U CN202021983997U CN212426701U CN 212426701 U CN212426701 U CN 212426701U CN 202021983997 U CN202021983997 U CN 202021983997U CN 212426701 U CN212426701 U CN 212426701U
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Abstract
The utility model provides a double diabolo-shaped steel-concrete combined pier beam connecting structure, wherein, the bent cap connecting piece and the pier stud connecting piece of the double diabolo-shaped steel-concrete combined pier beam connecting structure are used for connecting a bent cap and a pier stud, the bent cap connecting piece is embedded in the bent cap, the pier stud connecting piece is embedded in the pier stud, an annular angle arc fixing piece is combined for use, the fixing piece is externally connected with the bent cap connecting piece and the pier stud connecting piece and consists of two semicircular components; the utility model also provides a construction method of two diabolo shape steel-concrete combination mound roof beam connection structure. The utility model has simple structure, simultaneously takes into account the connection reliability and the construction convenience, and the two diabolo-shaped connecting components are sleeved together by hoops and act together to ensure that the pier stud and the bent cap are connected firmly; the external mounting of high strength can realize the quick temporary fixation of bent cap and pier stud, has simplified the commentaries on classics of bridge and has joined in marriage the flow, easily the installation and the maintenance of component.
Description
The technical field is as follows:
the utility model relates to a bridge construction technical field is assembled in the prefabrication, in particular to two diabolo shape steel-thoughtlessly make up mound roof beam connecting elements and construction.
Background art:
the prefabrication and assembly are the main trend of civil engineering development in China and the direction of vigorous development of bridge engineering, and compared with the traditional cast-in-place bridge construction process, the bridge prefabrication and assembly construction has great advantages. The components are prefabricated in a factory, various factors in the production process of the components can be controlled, and the quality of an engineering structure is ensured; a large amount of steel bar connection and formwork erection pouring are not needed on site, the requirement on the site is reduced, the construction speed is increased, and the construction period is greatly shortened.
The connection part of the bent cap and the pier stud needs to support the upper structure of the bridge and transfer load to the foundation, and the stress of the connection structure is complex, so that the bent cap and the pier stud connection construction is one of the key links of bridge assembly construction.
At present, the common capping beam-pier column connection mode in engineering comprises the cast-in-place connection of a pier and a capping beam; the bridge pier is connected with the bent cap tenon; welding and connecting the built-in steel plates; connecting grouting sleeves; connecting grouting metal corrugated pipes; slot-in connections, etc., but they do not compromise connection reliability and construction convenience.
The invention content is as follows:
an object of the utility model is to provide a two diabolo shape steel-mix combination mound roof beam connection structure can effectively solve the problem in the background art, compromises connection reliability and construction convenience simultaneously.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model discloses two diabolo shape steel-mix combination mound roof beam connection structure, its characterized in that: the capping beam connecting piece and the pier stud connecting piece are two circular connecting components and are used for connecting the capping beam and the pier stud, the capping beam connecting piece is embedded in the capping beam, the lower end face of the capping beam connecting piece is flush with the lower end face of the capping beam, the pier stud connecting piece is embedded in the pier stud, the upper end face of the pier stud connecting piece is flush with the upper end face of the pier stud, the circular diameter of the capping beam connecting piece is larger than that of the pier stud connecting piece, and holes are formed in the contact end faces of the capping beam connecting piece and the pier stud connecting piece in advance and used for penetrating through connecting reinforcing steel bars reserved on the capping beam and the pier stud; and an annular angle arc fixing part is arranged on the periphery of the joint of the lower end face of the bent cap connecting piece and the upper end face of the pier stud connecting piece.
Preferably, bent cap connecting piece, pier stud connecting piece are hollow bamboo shape, and bent cap connecting piece, pier stud connecting piece's circumference are equipped with the recess of gear form, and the recess of gear form can be firm inlay respectively on bent cap and the pier stud, the ability of shearing of pier stud and bent cap can be strengthened in the setting of gear form recess simultaneously, and then reinforcing bridge anti-seismic performance.
Preferably, the ultra-high performance fiber reinforced concrete is filled in the capping beam connecting piece and the pier stud connecting piece, and the capping beam connecting piece and the pier stud connecting piece have the advantages of high self compressive strength, no stirrup connection structure, clear load transmission path, excellent bonding performance with reinforcing steel bars, no welding connection between the reinforcing steel bars and no stress concentration phenomenon.
Preferably, the cover beam and the pier stud are reserved with connecting steel bars which extend out of the cover beam and are matched with holes reserved on the contact end face of the connecting piece in position, so that the connecting steel bars can well enter the connecting piece.
Preferably, the metal corrugated pipe is sleeved on the extending end of the connecting steel bar, grouting material is filled between the inside of the metal corrugated pipe and the connecting steel bar, and the metal corrugated pipe can be more tightly combined with the ultrahigh-performance fiber reinforced concrete filled in the connecting piece.
Preferably, bolt holes are preset in the positions, not contacted with the pier stud connecting piece, of the lower end face of the bent cap connecting piece and the positions of the side faces of the pier stud connecting piece, and are used for installing a screw rod required to be used by the annular angle arc fixing piece.
Preferably, the annular angle arc fixing part consists of two semicircular components, the annular angle arc fixing part and the matched screw are made of high-strength aviation aluminum alloy, the complete annular angle arc fixing part is provided with a notch for forming a pier column grouting hole at the side part of the pier column connecting piece, and the pier column grouting hole is formed to facilitate pier column grouting and sitting of a grouting layer, so that the structure is simple, and the components are convenient to install, overhaul and replace; annular angle arc mounting and supporting screw rod all adopt high strength aviation aluminum alloy to be the material, can be effectual with the bent cap connecting piece and pier stud connecting piece together fixed, play the temporary fixation effect of bent cap and pier stud, maintain connection structure's stability.
Preferably, the inner surfaces of the bent cap connecting piece and the pier stud connecting piece are provided with a plurality of shear nails, so that the occlusion effect of the connecting pieces and the internal filling concrete is enhanced.
The utility model provides another technical scheme that, a construction method of a double diabolo-shaped steel-concrete combined pier beam connection structure, (1) connecting reinforcing steel bars reserved on a bent cap connecting piece or a pier stud connecting piece and extending out are respectively inserted into a metal corrugated pipe, and the inside of the metal corrugated pipe is grouted to realize the fixation of the metal corrugated pipe; (2) bolt holes are respectively formed in the positions, which are not contacted with the pier stud connecting piece, of the lower end face of the bent cap connecting piece and the positions of the side faces of the pier stud connecting piece; (3) the annular angle arc fixing piece is fixed on the two connecting pieces by using a screw rod, so that the quick temporary fixing of the bent cap and the pier stud is realized; (4) filling the ultrahigh-performance fiber reinforced concrete into the pier stud connecting piece from the grouting hole at the gap of the annular angle arc fixing piece, and performing primary grouting and fixing; (5) injecting concrete mortar between the contact surfaces of the bent cap connecting piece and the pier stud connecting piece to form a mortar sitting layer; (6) and filling the ultrahigh-performance fiber reinforced concrete into the bent cap connecting piece from grouting holes pre-formed in the upper parts of the bent cap and the bent cap connecting piece to finish grouting and fixing the bent cap and the pier stud.
The method comprises the following steps that before a cover beam and a pier stud are prefabricated, a cover beam connecting piece and a pier stud connecting piece are prefabricated, when the cover beam is prefabricated, the cover beam connecting piece is bound with a steel bar of the cover beam and fixed at a corresponding position in a cover beam template, and concrete is poured to form the cover beam; when the pier stud is prefabricated, the pier stud connecting piece is bound with the steel bars of the pier stud, the pier stud connecting piece and the steel bars are fixed at the corresponding position in the pier stud template, and concrete is poured to form the pier stud.
In summary, the above technology has the following beneficial effects:
1. the utility model has the advantages of simple structure, two diabolo shape connecting elements hoop covers of bent cap connecting piece and pier stud connecting piece are in the same place, and the combined action makes the very firm connection of pier stud and bent cap be in the same place, has strengthened the isotropic performance of concrete, has improved the connection stability of pier stud and bent cap.
2. The utility model discloses an annular angle arc mounting is with bent cap connecting piece and pier stud connecting piece simple connection, realizes the quick temporary fixation of bent cap and pier stud, and annular angle arc mounting sets up in the outside of pier stud and bent cap connecting piece, and the component installation of being convenient for is changed with the maintenance.
3. The utility model discloses a connection of pier stud and bent cap passes through connecting piece, grout corrugated metal pipe, mounting and realizes jointly, compares with current single connected mode, can compromise simultaneously and connect reliability and construction convenience. Under the connection of equal intensity, the utility model discloses can reduce the length of reserving the reinforcing bar, increase corrugated metal pipe's diameter simultaneously, the required precision is low, and it is convenient to install.
4. The utility model discloses a connecting piece internal surface cloth shear force nail has strengthened the interlock effect of connecting piece and inside packing concrete. The side face of the connecting piece is provided with a gear-shaped groove, so that the shearing resistance of the pier stud and the capping beam is enhanced, and the anti-seismic performance of the bridge is further enhanced.
Description of the drawings:
the present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic view of the connection between the bent cap connecting piece and the pier stud connecting piece of the present invention;
FIG. 2 is a schematic view of the connection between the capping beam and the pier stud of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
fig. 4 is a sectional view taken along line B-B of fig. 1.
1-capping beam connection; 2-pier stud connectors; 3-a capping beam; 4-pier stud; 5-connecting reinforcing steel bars; 6-circular ring angle arc fixing piece; 7-a metal bellows; 8-screw rod; 9-setting a pulp layer; 10-shear pins; k1-outer shell; k2-hole; k3-perforation; k4-screw hole; k5-gear-like grooves; k6-ultra high performance fiber reinforced concrete; k7-annular corner arc fixture notch.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and the following detailed description.
Before prefabricating bent cap 3 and pier stud 4, prefabricated bent cap connecting piece 1 and pier stud connecting piece 2 earlier, bent cap connecting piece 1 and pier stud connecting piece 2 are cut by the size that steel sheet installation design was good, can be after cutting one side or also can densely arranging welding shear force nail 10 on the surface of both sides, then the equipment welded fastening forms shell body K1, offer simultaneously in advance on the shell body K1 and be used for wearing to establish connecting reinforcement 5, the hole K2 of corrugated metal pipe and the perforation K3 that the filled concrete was used, the internal surface of connecting piece has laid shear force nail 10 can strengthen the interlock intensity of connecting piece and inside filled concrete.
When the bent cap 3 is prefabricated, the bent cap connecting piece 1 is bound with the steel bars in the bent cap to be fixed at a corresponding position in a bent cap 3 template, and the bent cap 3 is formed by pouring concrete; when the pier stud 4 is prefabricated, the pier stud connecting piece 2 is bound with steel bars in the pier stud so as to be fixed at a corresponding position in a template of the pier stud 4, the pier stud 4 is formed by pouring concrete, and the steel bars can be additionally bound and reinforced in grooves on the side surfaces of the bent cap connecting piece 1 and the pier stud connecting piece 2 (namely gear-shaped grooves arranged on the circumferential parts of the bent cap connecting piece 1 and the pier stud connecting piece 2).
In the concrete pouring process, the concrete needs to be vibrated fully so as to improve the bonding performance between the bent cap connecting piece 1 and the pier stud connecting piece 2 and the concrete; after pouring, a steam maintenance shed is arranged, maintenance is carried out on the prefabricated cover beam 3 and the prefabricated pier stud 4, after maintenance is finished, the template is removed, prefabrication of the cover beam 3 and the prefabricated pier stud 4 is finished, after prefabrication, connecting steel bars 5 are reserved on the cover beam 3 and the pier stud 4, the connecting steel bars 5 of the cover beam 3 extend downwards towards the pier stud 4, the connecting steel bars 5 of the pier stud 4 extend upwards towards the cover beam 3, a metal corrugated pipe 7 is sleeved on the end portion, extending out of the cover beam 3 or the pier stud 4, of each connecting steel bar 5, grout is filled between the inside of the metal corrugated pipe 7 and the corresponding connecting steel bar 5, and a hole K2 which is preset in the outer shell K1 needs to be larger than the metal corrugated pipe.
During splicing, the bent cap 3 is hoisted to the upper side of the pier stud 4, and the annular angle arc fixing piece 6 is used for connecting the bent cap connecting piece 1 and the pier stud connecting piece 2, so that the bent cap 3 and the pier stud 4 are quickly and temporarily fixed, and subsequent construction is facilitated; in the installation process of the annular angle arc fixing piece 6, in order to avoid the situation that the screw cannot be installed due to errors, a screw hole K4 for fixing the annular angle arc fixing piece 6 is formed in the bent cap connecting piece 1 and the pier stud connecting piece 2; the two semicircular angle arc fixing pieces are respectively locked into the screw holes K4 through bolts to form a complete annular angle arc fixing piece 6.
Connecting reinforcing steel bars 5 are reserved when the capping beams 3 and the pier studs 4 are prefabricated, and when the connecting reinforcing steel bars 5 on the capping beams 3 are inserted into the pier stud connecting pieces 2 on the pier studs 4, the lower ends of the connecting reinforcing steel bars 5 are inserted into the metal corrugated pipes 7 to the lower ends of the metal corrugated pipes in advance; the connecting reinforcing steel bars 5 of the pier stud 4 penetrate through the pier stud connecting piece 2 on the pier stud 4, when the connecting reinforcing steel bars 5 are inserted into the bent cap connecting piece 1 on the bent cap 3, the upper ends of the connecting reinforcing steel bars 5 are inserted into the metal corrugated pipes 7 to the upper ends of the metal corrugated pipes in advance, grouting is needed in the metal corrugated pipes 7, and after the grouting is full, the fixing of the connecting reinforcing steel bars 5 is completed.
The bent cap connecting piece 1 and the pier stud connecting piece 2 are both connecting pieces formed by multiple layers of hollow bamboo shapes or circular rings, gear-shaped grooves K5 are formed in the side faces of the bent cap connecting piece 1 and the pier stud connecting piece 2, and ultrahigh-performance fiber reinforced concrete K6 is filled in the bent cap connecting piece 1 and the pier stud connecting piece 2; the top end side of the pier stud connecting piece 2 is flush with the side of the pier stud 2.
Concrete mortar is seated between the contact surfaces of the bent cap connecting piece 1 and the pier stud connecting piece 2 to form a mortar layer 9, and the connection tightness between the bent cap connecting piece 1 and the pier stud connecting piece 2 is further improved.
The utility model discloses a construction method of a double diabolo-shaped steel-concrete combined pier beam connection structure, (1) connecting reinforcing steel bars which are reserved on a bent cap connecting piece 1 or a pier stud connecting piece 2 and extend out are respectively inserted into a metal corrugated pipe, and the inside of the metal corrugated pipe is grouted to realize the fixation of the metal corrugated pipe; (2) bolt holes are respectively formed in the positions, which are not contacted with the pier stud connecting piece 2, of the lower end face of the bent cap connecting piece 1 and the positions of the side faces of the pier stud connecting piece 2; (3) the annular angle arc fixing piece is fixed on the two connecting pieces by using a screw rod, so that the quick temporary fixing of the bent cap and the pier stud is realized; (4) filling the ultrahigh-performance fiber reinforced concrete into the pier stud connecting piece from a grouting hole of K7 at the gap of the annular corner arc fixing piece, and performing primary grouting and fixing; (5) injecting concrete mortar between the contact surfaces of the bent cap connecting piece and the pier stud connecting piece to form a mortar sitting layer; (6) and filling the ultrahigh-performance fiber reinforced concrete into the bent cap connecting piece from a grouting hole (a through hole K3) pre-formed in the upper parts of the bent cap and the bent cap connecting piece to finish grouting and fixing the bent cap and the pier stud.
The capping beam connecting piece 1 and the pier stud connecting piece 2 are prefabricated before the capping beam 3 and the pier stud 4 are prefabricated, when the capping beam 3 is prefabricated, the capping beam connecting piece 1 is bound with the steel bar of the capping beam 3 and fixed at the corresponding position in a template of the capping beam 3, and concrete is poured to form the capping beam 3; when the pier stud 4 is prefabricated, the pier stud connecting piece 2 is bound with a steel bar of the pier stud, fixed at a corresponding position in a template of the pier stud 4, and concrete is poured to form the pier stud 4.
Above-mentioned operation flow and software and hardware configuration only do as the preferred embodiment of the utility model discloses a not therefore restrict the patent scope of the utility model, all utilize the utility model discloses the equivalent transform of doing of description and attached drawing content, or directly or indirectly use in relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (8)
1. The utility model provides a two diabolo shape steel-mix combination mound roof beam connection structure which characterized in that: the capping beam connecting piece (1) and the pier stud connecting piece (2) are two circular connecting components and are used for connecting a capping beam (3) and a pier stud (4), the capping beam connecting piece (1) is embedded in the capping beam (3), the lower end face of the capping beam connecting piece (1) is flush with the lower end face of the capping beam (3), the pier stud connecting piece (2) is embedded in the pier stud (4), the upper end face of the pier stud connecting piece (2) is flush with the upper end face of the pier stud (4), the circular diameter of the capping beam connecting piece (1) is larger than that of the pier stud connecting piece (2), holes are preset in the contact end faces of the capping beam connecting piece (1) and the pier stud connecting piece (2) and are used for penetrating through reserved connecting reinforcing steel bars (5) on the capping beam (3) and the pier stud (4); and an annular corner arc fixing piece (6) is arranged on the periphery of the joint of the lower end face of the bent cap connecting piece (1) and the upper end face of the pier stud connecting piece (2).
2. The double diabolo-shaped steel-concrete combined pier beam connection structure according to claim 1, wherein: and gear-shaped grooves are formed in the circumferential parts of the bent cap connecting piece (1) and the pier stud connecting piece (2).
3. The double diabolo-shaped steel-concrete combined pier beam connection structure according to claim 1, wherein: the bent cap connecting piece (1) and the pier stud connecting piece (2) comprise an outer shell formed by pre-welding steel plates and ultrahigh-performance fiber reinforced concrete poured inside the outer shell.
4. The double diabolo-shaped steel-concrete combined pier beam connection structure according to claim 1, wherein: connecting reinforcing steel bars (5) which extend out of the cover beam (3) and the pier stud (4) and are matched with the holes reserved on the contact end face of the connecting piece are reserved on the cover beam and the pier stud; the extension end of the connecting steel bar (5) is sleeved with a metal corrugated pipe (7), and grouting materials are filled between the interior of the metal corrugated pipe (7) and the connecting steel bar (5).
5. The double diabolo-shaped steel-concrete combined pier beam connection structure according to claim 1, wherein: bolt holes are preset in the positions, not contacted with the pier stud connecting piece (2), of the lower end face of the bent cap connecting piece (1) and the positions of the side faces of the pier stud connecting piece (2) and are used for installing the screw rods (8) needed by the annular angle arc fixing pieces (6).
6. The double diabolo-shaped steel-concrete combined pier beam connection structure according to claim 1, wherein: annular angle arc mounting comprises two semicircle components, annular angle arc mounting (6) and supporting screw rod (8) all adopt high strength aviation aluminum alloy to be the material, and complete annular angle arc mounting is equipped with the breach and is used for offering the pier stud grouting hole at pier stud connecting piece (2) lateral part.
7. The double diabolo-shaped steel-concrete combined pier beam connecting structure according to claim 1, characterized in that: and a grout layer (9) is arranged between the lower end face of the bent cap connecting piece (1) and the upper end face of the pier stud connecting piece (2).
8. The double diabolo-shaped steel-concrete combined pier beam connecting structure according to claim 1, characterized in that: and shear nails (10) are uniformly distributed on the inner surfaces of the bent cap connecting piece (1) and the pier stud connecting piece (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021983997.4U CN212426701U (en) | 2020-09-11 | 2020-09-11 | Double-diabolo-shaped steel-concrete combined pier beam connecting structure |
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| CN202021983997.4U CN212426701U (en) | 2020-09-11 | 2020-09-11 | Double-diabolo-shaped steel-concrete combined pier beam connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962381A (en) * | 2020-09-11 | 2020-11-20 | 福州大学 | Double-diabolo-shaped steel-concrete combined pier-beam connecting structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962381A (en) * | 2020-09-11 | 2020-11-20 | 福州大学 | Double-diabolo-shaped steel-concrete combined pier-beam connecting structure and construction method thereof |
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