CN113202014A - Top cap and pier stud steel bar circular seam connection type assembly structure and construction method - Google Patents
Top cap and pier stud steel bar circular seam connection type assembly structure and construction method Download PDFInfo
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- CN113202014A CN113202014A CN202010179356.1A CN202010179356A CN113202014A CN 113202014 A CN113202014 A CN 113202014A CN 202010179356 A CN202010179356 A CN 202010179356A CN 113202014 A CN113202014 A CN 113202014A
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- top cap
- pier stud
- circular seam
- steel
- steel plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention provides a top cap and pier column reinforcing steel bar circular seam connection type assembly structure and a construction method. Need not when assembling this structure and need not to reserve the steel bar joint counterpoint one by one, low to manufacturing accuracy requirement, construction tolerance is big, need not to carry out grout, play thick liquid one by one to the steel bar joint, and it is convenient to be under construction, and the structure atress is clear and definite, and construction quality and structural performance easily guarantee.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a top cap and pier stud steel bar circular seam connection type assembly structure and a construction method.
Background
With the development of green construction technology, segment prefabricated assembled piers are increasingly applied in railway, urban rail transit, municipal administration and highway engineering, a pier structure is usually composed of one or more piers and a top cap, particularly in railway and urban rail transit, the pier is transversely narrow, two piers and a top cap are usually adopted, and after the piers and a foundation are assembled, the top cap and the two piers are assembled.
The splicing between the top cap and the pier stud is usually realized by sleeve grouting connection or corrugated pipe grouting connection at present, a grouting sleeve or a corrugated pipe needs to be pre-embedded in a prefabricated top cap during connection, steel bar joints are reserved on the pier stud, the reserved steel bar joints are inserted into the pre-embedded grouting sleeve or the corrugated pipe one by one during construction, the requirements on installation precision and construction are high, a special auxiliary tool is needed to accurately position the steel bar during manufacturing, and the cost is increased; the embedded grouting sleeve or the inserted connection between the corrugated pipe and the steel bar ensures that the complete centering difficulty between the embedded grouting sleeve and the corrugated pipe is high, and the connection performance is possibly adversely affected; after assembly, the pre-embedded grouting sleeves or the corrugated pipes need to be grouted one by one, and the construction process is more; grout outlet holes and grout inlet holes are required to be arranged one by one on the grouting sleeve or the corrugated pipe, the reserved hole channels are large in influence on the structure, and the material cost is high. Therefore, the research and development of a steel bar circular seam connection type assembly structure between a top cap and a pier stud and a construction method are problems to be solved urgently.
Disclosure of Invention
In view of the above, the invention aims to provide a steel bar circular seam connection type assembling structure between a top cap and a pier stud and a construction method, which reduce the construction difficulty, do not need to adopt a special auxiliary tool for positioning and reduce the cost.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a structure is assembled to reinforcing bar circumferential weld connection formula between hood and pier stud, includes pier stud and hood, the hood is prefabricated in the mill be close to the hood lower part in the hood and set up the reservation circumferential weld, reserve circumferential weld shape and pier stud phase-match, the hood bottom is the opening form be equipped with pier stud joint bar in the pier stud, pier stud joint bar stretches out pier stud top surface certain length the joint seam is laid to the pier stud top surface, will push up the hood during construction and pass through joint seam and install on the pier stud, and pier stud joint bar inserts and reserves the circumferential weld in the circumferential weld, pours the circumferential weld thick liquids to reserving the circumferential weld from advancing the thick liquid pipe, treats that the circumferential weld thick liquids flow from play thick liquid pipe after, accomplishes the concatenation of hood and pier stud.
Further, be close to the hood bottom in the hood and set up hood bottom reinforcing bar, the hood bottom reinforcing bar leads to long arranging along the XY direction of hood, and hood bottom reinforcing bar and pier stud connecting reinforcement staggered arrangement one by one guarantee that the clearance of hood bottom reinforcing bar can be inserted when pier stud connecting reinforcement is assembled, when the hood bears the horizontal force, the bottom is often in the state of bending, and its atress needs are guaranteed to hood bottom reinforcing bar.
Further, the middle of the top cap in the top cap is provided with top cap middle steel bars, the top cap middle steel bars and the pier stud connecting steel bars are arranged in a whole length mode in the XY direction of the top cap, and the pier stud connecting steel bars and the top cap middle steel bars are arranged in a staggered mode one by one, so that gaps of the top cap middle steel bars can be inserted when the pier stud connecting steel bars are assembled.
Further, reserve the circumferential seam border and be equipped with the inboard steel sheet of circumferential seam, the outside steel sheet of circumferential seam and circumferential seam top steel sheet be equipped with the reinforcing bar preformed hole on the inboard steel sheet of circumferential seam, the outside steel sheet of circumferential seam and the circumferential seam top steel sheet, top cap bottom reinforcing bar, top cap middle steel bar pass the reinforcing bar preformed hole on the inboard steel sheet of circumferential seam and the outside steel sheet of circumferential seam, pass through in succession and reserve the circumferential seam.
Furthermore, the steel plate on the inner side of the circular seam and the steel plate on the outer side of the circular seam are made of profiled steel plates, and concave-convex key teeth are arranged on the profiled steel plates, so that the meshing between the circular seam slurry and the steel plates and between the top cap concrete and the steel plates is ensured, and the anchoring performance of the circular seam slurry in the reserved circular seam is ensured.
Furthermore, a top cap connecting reinforcing steel bar is arranged in the top cap and close to the top of the top cap, the top cap connecting reinforcing steel bar penetrates through a steel bar preformed hole in a steel plate at the top of the circular seam, extends into the preformed circular seam for a certain length and corresponds to the pier stud connecting reinforcing steel bar.
Furthermore, the annular seam slurry adopts high-performance vibration-free connecting slurry, such as high-performance concrete, grouting material or Ultra High Performance Concrete (UHPC) and the like.
Furthermore, the slurry inlet pipe is positioned on a steel plate at the outer side of the circular seam close to the bottom of the reserved circular seam, the slurry outlet pipe is positioned on a steel plate at the top of the circular seam, and the slurry inlet pipe and the slurry outlet pipe both extend out of the top cap by a certain length.
Furthermore, the inner steel plate and the outer steel plate of the circular seam are made of profiled steel plates, and the profiled steel plates can adopt other forms with ribs and non-smooth surfaces to provide the occlusion force. The shear nails are arranged on the circular seam inner side steel plate, the circular seam outer side steel plate and the circular seam top steel plate, the shear nails are arranged on the inner side and the outer side of the circular seam and are distributed, the circular seam slurry, the reserved circular seam and the top cap are mutually anchored and connected, the anchoring performance of the pier stud connecting steel bar is guaranteed through shear resistance of the shear nails, and therefore connection between the top cap and the pier stud is guaranteed.
The construction method of the annular seam connection type assembled structure of the steel bars between the top cap and the pier stud comprises the following steps:
the method comprises the following steps that firstly, a top cap is prefabricated in a factory, when the top cap is prefabricated, a steel plate on the inner side of a circular seam, a steel plate on the outer side of the circular seam and a steel plate on the top of the circular seam are pre-embedded, shear nails are arranged on the top cap or middle steel bars of the top cap penetrate through steel bar preformed holes on the top cap, then bottom steel bars of the top cap penetrate through the steel bar preformed holes on the top cap, and top cap concrete is poured.
And step two, prefabricating or casting the pier stud in situ, laying a connecting joint on the top surface of the pier stud, and hoisting a top cap.
And step three, mounting the top cap on the pier stud, inserting the pier stud connecting steel bars into the reserved annular seam, and penetrating through the gap between the steel bars at the bottom layer of the top cap and the steel bars in the middle of the top cap.
And step four, pouring circular seam slurry from the slurry inlet pipe to the reserved circular seam, maintaining after the circular seam slurry flows out of the slurry outlet pipe, and completing the assembly of the top cap and the pier stud.
Compared with the prior art, the top cap and pier stud reinforcing steel bar circular seam connection type assembly structure and the construction method have the following advantages:
1. when the coping is assembled with the pier stud, the reserved steel bar joints are not required to be aligned one by one, the construction difficulty is reduced, the reserved space between the reserved steel bar of the pier stud and the coping is large, and the pier stud can conveniently penetrate into the construction.
2. During construction, the annular seam slurry is poured at one time, grouting and slurry discharging are not needed to be carried out on the steel bar joints one by one, and the construction is convenient.
3. The connection construction between the reinforcing bars has low requirement on the manufacturing precision, the construction tolerance is large, a special auxiliary tool is not needed for positioning, and the cost is reduced.
4. The shear nails or the steel bar preformed holes are arranged on the circular seam steel plate, and then the steel bars penetrate through the middle steel bar of the top cap, so that the integral connection performance among the circular seam steel plate, the circular seam slurry and the top cap is ensured.
5. The circular seam steel plate is a profiled steel plate and is used as a reserved circular seam forming template during construction, the connection strength of circular seam slurry is guaranteed, and the reliable anchoring of pier stud connecting steel bars is guaranteed.
6. The structure is assembled to formation between hood and pier stud, and vertical force passes through the concatenation seam transmission, and the pier stud reinforcing bar of moment of flexure in reserving the circumferential weld through the anchor to and the transmission of hood bottom reinforcing bar, the atress is clear and definite, assembles construction quality and structural performance and easily guarantees.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a sectional view taken along line I-I of FIG. 1;
FIG. 3 is a schematic structural view of the pier stud of the present invention, wherein 3-a is a front view, and 3-b is a sectional view of III-III in 3-a;
FIG. 4 is a schematic structural view of the top cap of the present invention, wherein 4-a is a front view and 4-b is a sectional view taken along line II-II in 4-a;
FIG. 5 is a schematic front view showing the structure of the second embodiment of the present invention, wherein 5-a is a front view, 5-b is a sectional view of IV-IV in 5-a, and 5-c is a sectional view of V-V in 5-a;
FIG. 6 is a schematic structural view of a second top cap according to an embodiment of the present invention, wherein 6-a is a front view, 6-b is a sectional view of VI-VI in 6-a, and 6-c is a sectional view of VII-VII in 6-a.
Description of reference numerals:
wherein: 1. pier studs; 2. a top cap; 3. connecting a seam; 4. connecting the pier stud with a steel bar; 5. reserving a circular seam; 6. the top cap is connected with the reinforcing steel bar; 7. steel plates on the inner sides of the circular seams; 71. steel plates on the outer sides of the circular seams; 72. a circular seam top steel plate; 73. reserving holes in the steel bars; 74. shear nails; 8. top hat bottom layer steel bars; 81. jacking the middle steel bar of the cap; 9. circular seam sizing agent; 10. a pulp inlet pipe; 11. and (4) a pulp outlet pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in figures 1-4, a top cap and pier stud steel bar circular seam connection type assembly structure comprises a pier stud 1 and a top cap 2, wherein the top cap 2 is prefabricated in a factory, a reserved circular seam 5 is arranged in the top cap 2 and close to the lower portion of the top cap 2, the shape of the reserved circular seam 5 is matched with that of the pier stud 1, the bottom of the top cap 2 is in an opening form, pier stud connecting steel bars 4 are arranged in the pier stud 1 along the circumference of the pier stud 1, the pier stud connecting steel bars 4 extend out of the top surface of the pier stud 1 by a certain length, connecting seams 3 are laid on the top surface of the pier stud 1, the top cap 2 is installed on the pier stud 1 through the connecting seams 3 during construction, the pier stud connecting steel bars 4 are inserted into the reserved circular seam 5, a plurality of top cap bottom layer steel bars 8 are arranged in the top cap 2 and close to the bottom of the top cap 2, the top cap bottom layer steel bars 8 are arranged in a full-length mode along the XY direction of the top cap 2, and the top cap bottom layer, can insert the clearance of top cap bottom reinforcing bar 8 when guaranteeing pier stud connecting reinforcement 4 to assemble, when top cap 2 bears the horizontal force, the bottom is often in the state of being bent, and top cap bottom reinforcing bar 8 guarantees its atress needs. Be located the centre of hood 2 in hood 2 and set up many middle reinforcing bars 81 of hood, lead to long arranging along the XY direction of hood 2, reinforcing bars 81 and pier stud connecting reinforcement 4 staggered arrangement one by one in the middle of the hood guarantees that pier stud connecting reinforcement 4 can insert the clearance of top hood middle reinforcing bar 81 when assembling. Be equipped with the hood near the hood top in the hood 2 and connect reinforcing bar 6, the hood is connected reinforcing bar 6 and is passed the reinforcing bar preformed hole 73 on the circumferential weld top steel sheet 72, stretches into and reserves 5 certain length of circumferential weld, corresponds each other with pier stud connecting reinforcement 4. The top cap is connected with the reinforcing steel bars 6, so that the anchoring performance of the annular seam slurry 9 in the reserved annular seam 5 is enhanced, and the connection reliability of the pier stud connecting steel bars 4 is improved. And (3) pouring circular seam slurry 9 into the reserved circular seam 5 from the slurry inlet pipe 11, and completing the splicing of the top cap 2 and the pier stud 1 after the circular seam slurry 9 flows out from the slurry outlet pipe 11.
As shown in fig. 5-6, the second embodiment of the present invention is as follows.
The top cap middle steel bar 81 is not arranged in the top cap 2, the top cap middle steel bar 81 does not penetrate through the circular seam inner side steel plate 7 and the circular seam outer side steel plate 71, and the steel bar preformed hole 73 is not arranged at the corresponding position. The top cap is not arranged to connect the reinforcing steel bar 6, and the steel bar preformed hole 73 is not arranged on the circular seam top steel plate 72. The circular seam inner steel plate 7 and the circular seam outer steel plate 71 are profiled steel plates, and the profiled steel plates can adopt other forms with ribs and non-smooth surfaces to provide occlusion force. The shear nails 74 are arranged on the circular seam inner side steel plate 7, the circular seam outer side steel plate 71 and the circular seam top steel plate 72, the shear nails 74 are arranged on the inner side and the outer side of the circular seam and are distributed, the circular seam slurry 9, the reserved circular seam 5 and the top cap 2 are mutually anchored and connected, the anchoring performance of the pier stud connecting steel bar 4 is guaranteed through the shear resistance of the shear nails 74, and therefore the connection between the top cap 2 and the pier stud 1 is guaranteed.
The construction method of the annular seam connection type assembled structure of the steel bars between the top cap and the pier stud comprises the following steps:
step one, prefabricating the top cap 2 in a factory, embedding the steel plate 7 on the inner side of the circular seam, the steel plate 71 on the outer side of the circular seam and the steel plate 72 on the top of the circular seam in advance when prefabricating the top cap 2, arranging a shear nail 74 on the top cap or enabling a steel bar 81 in the middle of the top cap to penetrate through a steel bar preformed hole 73 on the top cap, then enabling a steel bar 8 on the bottom layer of the top cap to penetrate through the steel bar preformed hole 73 on the top cap, and pouring concrete on the top cap 2.
And step two, prefabricating or casting the pier stud 1 in situ, laying a connecting joint 3 on the top surface of the pier stud 1, and hoisting a top cap 2.
And step three, installing the top cap 2 on the pier stud 1, inserting the pier stud connecting steel bars 4 into the reserved annular seam 5, and penetrating through the gap between the top cap bottom layer steel bars 8 and the top cap middle steel bars 81.
And step four, pouring circular seam slurry 9 into the reserved circular seam 5 from the slurry inlet pipe 10, maintaining after the circular seam slurry 9 flows out from the slurry outlet pipe 11, and completing splicing of the top cap 2 and the pier stud 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a structure is assembled to top cap and reinforcing bar circumferential weld connected between pier stud, includes pier stud and top cap, its characterized in that: be close to the hood lower part in the hood and set up the reservation circumferential weld, reserve circumferential weld shape and pier stud shape phase-match, the hood bottom is open structure be equipped with pier stud joint bar in the pier stud, pier stud joint bar stretches out the pier stud top surface the joint connection is laid to the pier stud top surface, will push up the hood and pass through joint connection and install on the pier stud during the construction, and pier stud joint bar inserts and reserves the circumferential weld in inserting, pours into the circumferential weld thick liquids to reserving the circumferential weld from advancing the thick liquid pipe, treats that the circumferential weld thick liquids flows from a thick liquid pipe, accomplishes assembling of hood and pier stud.
2. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 1, its characterized in that: and top cap bottom layer steel bars are arranged in the top caps close to the bottoms of the top caps, the top cap bottom layer steel bars are arranged along the XY directions of the top caps in a full-length mode, and the top cap bottom layer steel bars and the pier stud connecting steel bars are arranged in a staggered mode one by one.
3. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 2, its characterized in that: and the middle part of the top cap in the top cap is provided with top cap middle steel bars, the top cap middle steel bars are arranged along the XY direction full length of the top cap, and the top cap middle steel bars and the pier stud connecting steel bars are arranged in a staggered mode one by one.
4. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 3, its characterized in that: the reserved circular seam periphery is provided with a circular seam inner side steel plate, a circular seam outer side steel plate and a circular seam top steel plate, steel bar preformed holes are formed in the circular seam inner side steel plate, the circular seam outer side steel plate and the circular seam top steel plate, and top cap bottom steel bars and top cap middle steel bars penetrate the steel bar preformed holes in the circular seam inner side steel plate and the circular seam outer side steel plate and continuously pass through the reserved circular seam.
5. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 4, its characterized in that: the steel plate on the inner side of the circular seam and the steel plate on the outer side of the circular seam are profiled steel plates, and the profiled steel plates are provided with concave-convex key teeth.
6. The structure is assembled to top cap and pier stud steel muscle circumferential weld connection formula of claim 4 or 5, its characterized in that: be equipped with the hood near the hood top in the hood and connect the reinforcing bar, the hood is connected the reinforcing bar and is passed the reinforcing bar preformed hole on the steel sheet of circumferential weld top, stretches into and reserves the circumferential weld, corresponds each other with pier stud connecting reinforcement.
7. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 1, its characterized in that: the annular seam slurry is high-performance concrete, grouting material or ultrahigh-performance concrete.
8. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 5, its characterized in that: the profiled steel sheet is also used as an inner template during prefabrication, and a non-smooth ribbed steel sheet is adopted.
9. The structure is assembled to top cap and pier stud steel bar circumferential weld connected according to claim 2, its characterized in that: the reserved circular seam periphery is provided with a circular seam inner side steel plate, a circular seam outer side steel plate and a circular seam top steel plate, a steel bar reserved hole is formed in the circular seam top steel plate, the circular seam inner side steel plate and the circular seam outer side steel plate are made of profiled steel plates, and a plurality of shear nails are arranged on the inner side and the outer side of the circular seam inner side steel plate, the circular seam outer side steel plate and the circular seam top steel plate in a staggered mode.
10. A construction method adopting the top cap and pier stud steel bar circular seam connection type assembly structure of claims 1-9, which is characterized by comprising the following steps:
firstly, prefabricating a top cap in a factory, embedding a circular seam inner side steel plate, a circular seam outer side steel plate and a circular seam top steel plate in the top cap during prefabricating the top cap, arranging a shear nail on the top cap or enabling a top cap middle steel bar to penetrate through a steel bar preformed hole on the top cap middle steel bar, then enabling a top cap bottom layer steel bar to penetrate through a steel bar preformed hole on the top cap bottom layer steel bar, and pouring top cap concrete;
step two, prefabricating or casting the pier stud in situ, laying a connecting joint on the top surface of the pier stud, and hoisting a top cap;
thirdly, mounting the top cap on the pier stud, inserting the pier stud connecting steel bar into the reserved annular seam, and penetrating through the gap between the steel bar at the bottom layer of the top cap and the steel bar in the middle of the top cap;
and step four, pouring circular seam slurry from the slurry inlet pipe to the reserved circular seam, maintaining after the circular seam slurry flows out of the slurry outlet pipe, and completing the assembly of the top cap and the pier stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179356.1A CN113202014B (en) | 2020-03-14 | 2020-03-14 | Top cap and pier column steel bar circular seam connection type assembly structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179356.1A CN113202014B (en) | 2020-03-14 | 2020-03-14 | Top cap and pier column steel bar circular seam connection type assembly structure and construction method |
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| CN113202014A true CN113202014A (en) | 2021-08-03 |
| CN113202014B CN113202014B (en) | 2022-10-14 |
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| Publication number | Publication date |
|---|---|
| CN113202014B (en) | 2022-10-14 |
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