CN216891951U - Connection structure of assembled bent cap and pier - Google Patents
Connection structure of assembled bent cap and pier Download PDFInfo
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- CN216891951U CN216891951U CN202220102784.9U CN202220102784U CN216891951U CN 216891951 U CN216891951 U CN 216891951U CN 202220102784 U CN202220102784 U CN 202220102784U CN 216891951 U CN216891951 U CN 216891951U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a connecting structure of an assembled capping beam and a pier stud, which comprises a prefabricated capping beam and a prefabricated pier stud, wherein a central groove and an annular groove are arranged on the upper end surface of the prefabricated pier stud around the center, a central tenon matched with the central groove and an annular tenon matched with the annular groove are arranged on the lower end surface of the prefabricated capping beam, embedded steel bars are arranged at the top of the prefabricated pier stud, a metal corrugated pipe is arranged in the prefabricated capping beam, the embedded steel bars extend into the metal corrugated pipe, grouting material is filled in the metal corrugated pipe, and grouting material is filled between the prefabricated pier stud and the prefabricated capping beam. The installation is convenient.
Description
Technical Field
The utility model belongs to the technical field of assembly type bridges, and particularly relates to a connecting structure of an assembly type bent cap and a pier stud.
Background
With the improvement of social progress and people's environmental awareness, the construction environment of bridges is more and more emphasized by governments and people, and especially, in urban core bridges, bridge construction period, construction noise pollution, traffic pressure protection and the like are required to be placed in the primary consideration positions when the bridge design is gradually changed. The prefabricated assembly type technology has the advantages of component production standard, rapid and convenient field installation, energy conservation and environmental protection in construction, can reduce the influence on atmospheric environment and traffic roads, improves the quality and safety quality, and improves the civilized construction level, and is the development trend of the bridge industry in China.
In the prior art, a grouting sleeve or a grouting metal corrugated pipe is generally adopted for connection between a prefabricated pier column and a prefabricated capping beam, and the grouting sleeve connection is realized by connecting the prefabricated capping beam with embedded and extended steel bars at the pier top through a grouting connecting sleeve; the grout corrugated metal pipe is connected and is prefabricated pier shaft through pre-buried grout corrugated metal pipe in the bent cap and connect the reinforcing bar that stretches out in the pier shaft, but these two kinds of connected modes are higher to the construction accuracy requirement and the joint strength between bent cap and the pier stud is lower, and it is relatively poor to cut the ability, can appear the concrete crack problem.
Disclosure of Invention
The utility model aims to provide a connecting structure of an assembled capping beam and a pier stud, which solves the problems of high construction precision, low connection strength, poor shearing resistance and concrete crack when a grouting sleeve or a grouting metal corrugated pipe is adopted to connect the pier stud and the capping beam in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a connection structure of assembled bent cap and pier stud, includes prefabricated bent cap and prefabricated pier stud, prefabricated pier stud up end is equipped with central recess and annular groove around the center, prefabricated bent cap down end be equipped with the central tenon of central recess looks adaptation, and with the annular tenon of annular groove looks adaptation, prefabricated pier stud top is equipped with embedded bar, be equipped with corrugated metal pipe in the prefabricated bent cap, embedded bar stretches into in the corrugated metal pipe, the corrugated metal pipe intussuseption is filled with the grout material, prefabricated pier stud with it has the grout material to fill between the prefabricated bent cap.
Preferably, the prefabricated pier stud with the level runs through between the prefabricated bent cap and is equipped with the steel reinforcement pipeline, run through being equipped with in the steel reinforcement pipeline and connect the prefabricated pier stud with the prestressing steel of prefabricated bent cap.
Preferably, the embedded steel bars are arranged in the annular groove, the height of the outer protruding end of the annular groove is larger than that of the inner protruding end, the height of the central tenon is the same as that of the annular tenon, a gap is reserved between the central tenon and the groove wall and the groove bottom of the central groove, a gap is reserved between the annular tenon and the groove wall and the groove bottom of the annular groove, and the grouting material is arranged in the gap.
Preferably, a grouting pipe is reserved in the prefabricated pier stud, one end of the grouting pipe is connected to the bottom groove face of the central groove of the prefabricated pier stud, an annular grout outlet pipe and a horizontal grout outlet pipe communicated with the annular grout outlet pipe are reserved in the prefabricated cover beam, the position of the annular grout outlet pipe corresponds to the position of a groove formed by the central tenon and the annular tenon, and the bottom of the annular grout outlet pipe is provided with a gap between the prefabricated pier stud and the opening prefabricated cover beam and communicated with the prefabricated pier stud.
Preferably, the bellows lower extreme communicates each other through the lower part ring pipe, the bellows upper end communicates each other through the upper portion ring pipe, be connected with the inlet pipe on the ring pipe of lower part, be connected with the discharging pipe on the ring pipe of upper portion.
Preferably, a plurality of holes are horizontally arranged on the protruding end on the inner side of the annular groove in a penetrating manner.
Preferably, the prefabricated pier stud is square or round.
Preferably, the grouting material is high-strength mortar or ultra-high performance concrete.
Compared with the prior art, the utility model has the advantages that:
1. the prefabricated capping beam and the prefabricated pier stud are in a double joggle mode, grouting materials are filled between the prefabricated pier stud and the prefabricated capping beam, the contact area between the prefabricated capping beam and the prefabricated pier stud is increased, further, the connection strength and the shearing resisting capacity are increased, the condition of concrete cracks is effectively avoided, the diameter of the metal corrugated pipe can be increased under the connection with the same strength by arranging the metal corrugated pipe in the prefabricated capping beam and extending the embedded steel bars into the metal corrugated pipe to be filled with the grouting materials, the connection between the prefabricated pier stud and the prefabricated capping beam is firmer, the integrity of the pier body and the capping beam is increased, the double joggle joint and grouting metal corrugated pipe connection are adopted to jointly act, the diameter of the metal corrugated pipe can be increased under the connection with the same strength, the allowable error of the installation is increased, the precision requirement is reduced, the installation is convenient, and the applicability and the practicability of the prefabricated assembled connection in the engineering are greatly increased;
2. according to the utility model, the steel bar pipeline horizontally penetrates between the prefabricated pier column and the prefabricated capping beam, and the prestressed steel bars for connecting the prefabricated pier column and the prefabricated capping beam penetrate through the steel bar pipeline, so that the connection integrity and the shearing resistance between the prefabricated pier column and the prefabricated capping beam are further increased, and the earthquake resistance of the structure is further improved;
3. according to the utility model, the lower annular pipe and the upper annular pipe are arranged between the metal corrugated pipes, grouting work on all the metal corrugated pipes can be completed only by grouting one feeding pipe, compared with the traditional connecting structure that one metal corrugated pipe corresponds to one feeding pipe and one discharging pipe, grouting operation on a plurality of feeding pipes is required at the same time, the structure is more convenient to operate, and grouting efficiency is further improved;
4. according to the utility model, the plurality of holes are horizontally arranged on the protruding end on the inner side of the annular groove in a penetrating manner, so that the strength of the prefabricated bent cap and the prefabricated pier body is increased, and the rigidity of the connecting structure is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a sectional view of a coupling structure of a fabricated cap beam and a pier stud;
reference numerals: 1-prefabricated capping beam, 2-prefabricated pier stud, 3-central groove, 4-annular groove, 5-central tenon, 6-annular tenon, 7-embedded steel bar, 8-metal corrugated pipe, 9-grouting material, 10-steel bar pipeline, 11-prestressed steel bar, 12-grouting pipe, 13-annular grout outlet pipe, 14-horizontal grout outlet pipe, 15-lower annular pipe, 16-upper annular pipe, 17-feeding pipe, 18-discharging pipe and 19-hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "suspended", etc., when appearing, do not require that the components be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
In order to solve the problems that the existing prefabricated pier stud 2 and the existing prefabricated coping beam 1 are connected by adopting a grouting sleeve or a grouting metal corrugated pipe 8, the construction precision requirement is higher, the connection strength is lower, the capability of bearing strain load is poorer, and concrete cracks can occur, as shown in figure 1, the connecting structure of the prefabricated coping beam and the pier stud comprises the prefabricated coping beam 1 and the prefabricated pier stud 2, a central groove 3 and an annular groove 4 are arranged around the center of the upper end surface of the prefabricated pier stud 2, a central tenon 5 matched with the central groove 3 and an annular tenon 6 matched with the annular groove 4 are arranged on the lower end surface of the prefabricated coping beam 1, a pre-embedded steel bar 7 is arranged at the top of the prefabricated pier stud 2, a metal corrugated pipe 8 is arranged in the prefabricated coping beam 1, the pre-embedded steel bar 7 extends into the metal corrugated pipe 8, a grouting material 9 is filled in the metal corrugated pipe 8, and a grouting material 9 is filled between the prefabricated pier stud 2 and the prefabricated capping beam 1.
In the embodiment, the annular tenon 6 of the prefabricated capping beam 1 is inserted into the annular groove 4 of the prefabricated pier stud 2, the central tenon 5 of the prefabricated capping beam 1 is inserted into the central groove 3 of the prefabricated pier stud 2, and a grouting layer is arranged between the prefabricated pier stud 2 and the prefabricated capping beam 1, and the contact area between the prefabricated capping beam 1 and the prefabricated pier stud 2 is increased by adopting a double-joggle mode, so that the connection strength and the shearing resistance are increased, the occurrence of concrete cracks is effectively avoided, the prefabricated capping beam 1 is internally provided with the metal corrugated pipe 8, and the embedded steel bars 7 extend into the metal corrugated pipe 8 to be filled with grouting material 9, so that the connection between the prefabricated pier stud 2 and the prefabricated capping beam 1 is firmer, the integrity of a pier body and the capping beam is increased, and the diameter of the metal corrugated pipe 8 can be increased under the joint action of the same strength because the double-joggle and the grouting metal corrugated pipe 8 are adopted, the error increase that the installation allows, the required precision reduces, and it is convenient to install, greatly increased prefabricated the connection of assembling suitability and the practicality in the engineering.
Example 2
On the basis of embodiment 1, prefabricated pier stud 2 with it is equipped with reinforced pipeline 10 to run through the level between the prefabricated bent cap 1, run through in the reinforced pipeline 10 and be equipped with the connection prefabricated pier stud 2 with the prestressing steel 11 of prefabricated bent cap 1.
In this embodiment, prestressed reinforcement 11's both ends should be used for fixed prestressed reinforcement 11 with prefabricated pier stud 2 and should set up the ground tackle, and reinforced pipeline 10 internal strain is filled with grout material 9, and transverse prestressed reinforcement 11's setting has further increased the connection wholeness between prefabricated pier stud 2 and the prefabricated bent cap 1 with shear resistance, and then has improved structure seismic performance.
Example 3
On the basis of embodiment 1, the embedded steel bars 7 are arranged in the annular groove 4, the height of the outer protruding end of the annular groove 4 is greater than that of the inner protruding end, the heights of the central tenon 5 and the annular tenon 6 are the same, a gap is formed between the central tenon 5 and the groove wall and the groove bottom of the central groove 3, a gap is formed between the annular tenon 6 and the groove wall and the groove bottom of the annular groove 4, and the grouting layer is arranged in the gap; reserve in the prefabricated pier stud 2 to have grout pipe 12, the one end of grout pipe 12 is connected to on the 3 kerve faces of prefabricated pier stud 2 central recess, reserve in the bent cap have annular play thick liquid pipe 13 and with the level that annular play thick liquid pipe 13 communicates goes out thick liquid pipe 14, annular play thick liquid pipe 13 position with central tenon 5 with the groove site that annular tenon 6 formed is corresponding, annular play thick liquid pipe 13 bottom be equipped with the opening of the space intercommunication between prefabricated bent cap 1 and the prefabricated pier stud 2.
In this embodiment, the grouting pipe 12 reserved on the prefabricated pier stud 2 is grouted, the grouting liquid mainly gradually rises to fill the gap between the central tenon 5 and the central groove 3, and the gap between the annular tenon 6 and the annular groove 4 is filled up until the grouting liquid flows into the annular grout outlet pipe 13 and flows out of the horizontal grout outlet pipe 14, so that the grouting liquid 9 between the prefabricated cover beam 1 and the prefabricated pier stud 2 is filled, and in the filling process, air is extruded to the upper part and flows into the annular grout outlet pipe 13, and finally flows out of the horizontal grout outlet pipe 14, so that the possibility of residual air bubbles is greatly reduced, the compactness of the grouting joint is improved, the embedded steel bars 7 are arranged in the annular groove 4, and when the metal corrugated pipe 8 is grouted, grouting can also flow into the annular groove 4, and further the grouting effect and the grouting efficiency are improved.
Example 4
On the basis of embodiment 1, the lower ends of the corrugated pipes are communicated with each other through a lower annular pipe 15, the upper ends of the corrugated pipes are communicated with each other through an upper annular pipe 16, a feeding pipe 17 is connected to the lower annular pipe 15, and a discharging pipe 18 is connected to the upper annular pipe.
In this embodiment, only need to grout to an inlet pipe 17 and just can accomplish the grout work to all corrugated metal pipe 8, compare in a corrugated metal pipe 8 of traditional connection structure and correspond an inlet pipe 17 and a discharging pipe 18, need be simultaneously to the operation of a plurality of inlet pipe 17 grouts, this structure not only the operation is more convenient, but also has further improved the efficiency of grout.
Example 5
On the basis of the embodiment 1, a plurality of holes 19 are horizontally arranged on the inner protruding end of the annular groove 4 in a penetrating manner.
In this embodiment, the setting of hole 19 has increased the inside intensity of prefabricated bent cap 1 and prefabricated pier shaft, and then improves connection structure's rigidity.
Example 6
On the basis of the embodiment 1, the prefabricated pier stud 2 is square or round.
Example 7
On the basis of the embodiment 1, the grouting material 9 is high-strength mortar or ultra-high-performance concrete.
In this embodiment, adopt high-strength mortar or ultra high performance concrete as grout material 9 has intensity height, with the advantage that reinforcing bar viscous behavior is good, can effectively promote the intensity of structure bearing capacity and connection.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that, while the utility model has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The utility model provides a connection structure of assembled bent cap and pier stud which characterized in that: including prefabricated bent cap (1) and prefabricated pier stud (2), prefabricated pier stud (2) up end is equipped with central recess (3) and annular groove (4) around the center, prefabricated bent cap (1) lower terminal surface be equipped with central tenon (5) of central recess (3) looks adaptation, and with annular tenon (6) of annular groove (4) looks adaptation, prefabricated pier stud (2) top is equipped with embedded bar (7), be equipped with corrugated metal pipe (8) in prefabricated bent cap (1), embedded bar (7) stretch into in corrugated metal pipe (8), corrugated metal pipe (8) intussuseption is filled with grout material (9), prefabricated pier stud (2) with it has grout material (9) to fill between prefabricated bent cap (1).
2. A coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: prefabricated pier stud (2) with the level runs through between prefabricated bent cap (1) and is equipped with reinforced pipeline (10), run through in reinforced pipeline (10) and be equipped with the connection prefabricated pier stud (2) with prestressing steel (11) of prefabricated bent cap (1).
3. A coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: embedded steel bar (7) set up in annular groove (4), the outside protruding end height of annular groove (4) is greater than inboard protruding end, central tenon (5) with annular tenon (6) are highly the same, the space has between the cell wall of central tenon (5) and central groove (3) and the tank bottom, annular tenon (6) with the space has between the cell wall of annular groove (4) and the tank bottom, grout (9) set up in the space.
4. A coupling structure of fabricated capping beams and piers as claimed in claim 3, wherein: preformed pier stud (2) interior reservation has grout pipe (12), the one end of grout pipe (12) is connected to on the prefabricated pier stud (2) central recess (3) kerve face, preformed bent cap (1) interior reservation have annular play thick liquid pipe (13) and with the level of annular play thick liquid pipe (13) intercommunication goes out thick liquid pipe (14), annular play thick liquid pipe (13) position with central tenon (5) with the groove site that annular tenon (6) formed is corresponding, annular play thick liquid pipe (13) bottom be equipped with the opening of the space intercommunication between prefabricated bent cap (1) and the prefabricated pier stud (2).
5. A coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: the lower extreme communicates each other through lower part annular pipe (15) in corrugated metal pipe (8), corrugated metal pipe (8) upper end communicates each other through upper portion annular pipe (16), be connected with inlet pipe (17) on lower part annular pipe (15), be connected with discharging pipe (18) on upper portion annular pipe (16).
6. A coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: a plurality of holes (19) are horizontally arranged on the convex end at the inner side of the annular groove (4) in a penetrating way.
7. The coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: the prefabricated pier stud (2) is square or round.
8. A coupling structure of fabricated capping beams and piers as claimed in claim 1, wherein: the grouting material (9) is high-strength mortar or ultra-high performance concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220102784.9U CN216891951U (en) | 2022-01-14 | 2022-01-14 | Connection structure of assembled bent cap and pier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220102784.9U CN216891951U (en) | 2022-01-14 | 2022-01-14 | Connection structure of assembled bent cap and pier |
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| CN216891951U true CN216891951U (en) | 2022-07-05 |
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| CN202220102784.9U Active CN216891951U (en) | 2022-01-14 | 2022-01-14 | Connection structure of assembled bent cap and pier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036684A1 (en) * | 2022-08-17 | 2024-02-22 | 中交公路长大桥建设国家工程研究中心有限公司 | Fabricated bent cap and pier column combined structure and construction method therefor |
-
2022
- 2022-01-14 CN CN202220102784.9U patent/CN216891951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036684A1 (en) * | 2022-08-17 | 2024-02-22 | 中交公路长大桥建设国家工程研究中心有限公司 | Fabricated bent cap and pier column combined structure and construction method therefor |
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