CN212103641U - Take vertical concatenation seam's of concrete prefabricated hollow mound of assembling - Google Patents

Abstract

The utility model provides a take precast assembling hollow pier of vertical concatenation seam of concrete, including basis, prefabricated plate, vertical concatenation seam and hood, reserve socket groove and spliced pole above the basis, the prefabricated plate is assembled by the prefabricated minute board of polylith and forms, vertical concatenation seam is followed pier direction of height, is filled between the prefabricated minute board, makes the prefabricated plate form closed hollow cross-section, and vertical concatenation seam adopts the concrete form, carries out bayonet connection through the socket groove between prefabricated plate and the basis, waters the concrete again; the top cap is located the prefabricated plate top, treats that prefabricated branch board and vertical concatenation seam installation accomplish the back, connects through the coarse reinforcement. The hollow pier and the foundation are connected in an inserting manner, so that the construction speed is obviously improved; the hollow pier walls are connected through the vertical splicing seams, the prefabricated plates are open in cross section and small in size and light in weight, the hollow pier walls are prefabricated in the height direction at one time, horizontal splicing seams do not need to be arranged, and the influence on structural integrity caused by the fact that multiple horizontal splicing seams are usually arranged is avoided.

Description

Take vertical concatenation seam's of concrete prefabricated hollow mound of assembling

Technical Field

The utility model relates to a bridge construction field especially relates to a take hollow mound is assembled in prefabrication of vertical concatenation seam of concrete.

Background

As a novel intelligent construction mode, the prefabricated assembled pier becomes a research and application hotspot. When the segment prefabricated assembly pier is built, the pier is divided into a plurality of prefabricated segments, the segments are assembled on site, a plurality of splicing seams exist between the segments and a foundation, between the segments and a top cap on site, and the connection reliability of the whole structure is determined by the connection structure at the splicing seams.

Common steel bars are uniformly distributed on the inner side and the outer side of the pier wall of the hollow pier, and the joint has high connection difficulty and low construction speed for the dense common steel bars; if the splicing seams are reduced, the height of the prefabricated sections needs to be increased, which brings inconvenience to transportation and hoisting, and if smaller prefabricated sections are adopted, the number of the splicing seams is increased, which brings difficulty to on-site assembly; the splicing seams among the prefabricated sections are usually horizontal seams, and when the pier is stressed, a large bending moment needs to be borne, and the strength of the splicing seams is usually weaker than that of the prefabricated sections; the prefabricated assembled hollow pier is usually connected by prestress, and the connection has the defects of insufficient energy consumption, low ductility and the like and is not suitable for the condition of large stress.

Aiming at the defects of the existing scheme, different connection modes and assembly schemes need to be researched to solve the problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a take hollow mound is assembled in prefabrication of vertical concatenation seam of concrete need not to set up horizontal concatenation seam, avoids setting up the influence that many level concatenation seams brought to structural integrity usually.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a prefabricated assembled hollow pier with concrete vertical splicing seams comprises a foundation, prefabricated plates, vertical splicing seams and a top cap, wherein a socket slot and a connecting column are reserved on the foundation, the cross section shapes of the socket slot and the connecting column are matched with the cross section of the hollow pier, the prefabricated plates are formed by assembling a plurality of prefabricated sub-plates, the vertical splicing seams are filled between the prefabricated sub-plates along the height direction of the pier, so that the prefabricated plates form a closed hollow cross section, the prefabricated plates and the foundation are connected in an inserted mode through socket slots, and concrete is poured after pouring; the top cap is positioned above the prefabricated plates, and after the prefabricated plates are assembled, the prefabricated plates are connected with the top cap through reinforcing steel bars.

The prefabricated slab comprises a prefabricated sub slab I and a prefabricated sub slab II, wherein the prefabricated sub slab I and the prefabricated sub slab II are of a slab structure with an opening on one side, the openings of the prefabricated sub slab I and the prefabricated sub slab II are oppositely arranged, and a vertical splicing seam is filled between the opened prefabricated sub slab I and the two end faces of the prefabricated sub slab along the height direction of a pier to form a closed hollow section; and the thicknesses of the cross sections of the first prefabricated sub plate and the second prefabricated sub plate are 5-10cm smaller than that of one side of the socket groove. And the joint surfaces on the first prefabricated sub-plate and the two end surfaces of the prefabricated sub-plate are trapezoidal, so that the connection with the vertical splicing joint is enhanced.

Furthermore, a plurality of pre-embedded stirrups are respectively arranged on the end surfaces of two side edges of the first prefabricated sub-plate and the second prefabricated sub-plate, the embedded stirrups extend out of one end surface/two end surfaces of the prefabricated sub-plate for a certain length, the extending parts are U-shaped, the exertion of the hooping effect of the stirrups is ensured, and are uniformly arranged along the height direction of the pier wall, the extending parts of the embedded stirrups on the first prefabricated sub-plate and the second prefabricated sub-plate correspond to each other, a certain gap is reserved between the extending parts, the prefabricated panels are connected through the joint stirrups, so that the assembly of the prefabricated panels is not interfered with each other, the joint stirrups are bound on the inner side and the outer side of the pier wall, a plurality of pre-embedded reinforcing ribs are respectively arranged in the middles of the end surfaces of the two sides of the first pre-fabricated plate and the second pre-fabricated plate, the pre-embedded reinforcing ribs extend out of the first end surface and the second end surface of the first pre-fabricated plate for a certain length, the prefabricated split plates are connected with the extending parts of the embedded stirrups, so that the connection performance between the prefabricated split plates and the vertical splicing seams is guaranteed; longitudinal bars are arranged at the corners of the embedded stirrups and the intersections of the embedded stirrups and the embedded reinforcing ribs, and the longitudinal bars are arranged in the through length direction of the pier wall.

Further, the reinforcing bar is including setting up the pre-buried thick steel bar in the prefabricated plate, pre-buried thick steel bar stretches out the certain length in prefabricated plate top, and it is continuous with the top connection thick steel bar through the connector, hoist the hood, will connect the thick steel bar and insert to the thick steel bar pore in the hood, the thick steel bar is connected in the stretch-draw to thick steel bar pore is to pressure injection grouting thick liquids, realizes being connected of prefabricated plate and hood.

Furthermore, the prefabricated slab is connected with the foundation through a bottom splicing seam, and the bottom splicing seam is made of high-strength mortar and is laid on the bottom surface of the socket groove to be connected with the bottom surface of the prefabricated slab.

Furthermore, the prefabricated slab and the top cap are connected through a top layer splicing seam, and the top layer splicing seam is made of high-strength mortar and is laid on the top surface of the prefabricated slab and connected with the top cap.

Furthermore, the connecting column is positioned in the precast slab and is constructed together with the foundation, and the top surface of the connecting column is flush with or higher than the top surface of the foundation.

Furthermore, the vertical splicing seams are made of ultra-high performance concrete, and the post-cast concrete is made of micro-expansion concrete or high-strength concrete and is filled in the socket grooves.

Furthermore, when the hollow pier is transversely too wide, a plurality of prefabricated plates can be arranged and connected in the same connection mode through two or more vertical splicing seams.

Furthermore, the depth of the socket groove is not less than 2 times of the thickness of the pier wall of the prefabricated slab, and the connection parts of the socket groove and the connecting column and the prefabricated slab are subjected to roughening treatment so as to improve the connection performance.

Compared with the prior art, a take vertical splice joint of concrete's prefabricated hollow mound of assembling have following advantage:

1. the hollow pier and the foundation are connected in an inserting mode, the problems that intensive common steel bars are large in connection difficulty and slow in speed are solved, the pier wall of the hollow pier is thin, the required socket depth is small, the thickness of the foundation does not need to be increased, connection construction can be completed by inserting the hollow pier wall and pouring concrete, and the construction speed is remarkably improved.

2. The hollow pier walls are connected by vertical splicing seams, and the prefabricated slab has an open cross section, is small in size and light in weight and is convenient to transport and hoist; the pier wall height direction of the hollow pier can be prefabricated once, the horizontal splicing seams do not need to be arranged, and the influence on the structural integrity caused by the arrangement of the horizontal splicing seams at multiple positions is avoided.

3. The hollow pier precast slabs are connected through reasonable structures, the reliability of connection through vertical splicing seams is guaranteed, and hoisting and assembling of the precast slabs are not affected.

4. Vertical concatenation seam adopts the ultra high performance concrete, guarantees the seam performance, and self-compaction, exempt from the vibration, and it is convenient to construct.

5. The hood is less with the pier stud atress, through adopting the thick steel bar to connect, convenient and fast, and the thick steel bar adopts the connector to lengthen, avoids the pre-buried overlength of thick steel bar to influence the segment transportation.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a schematic diagram of the basic structure of the present invention, wherein 4-a is a front view, 4-b is a side view, and 4-c is a top view;

FIG. 5 is a top view of the prefabricated sub-boards of the present invention;

FIG. 6 is a side view of the prefabricated sub-panels of the present invention;

FIG. 7 is a schematic diagram of the structure of the prefabricated panels of the present invention, wherein 7-a is a top view, 7-b is a front view, and 7-c is a side view;

FIG. 8 is a schematic structural view of the top cap of the present invention, wherein 8-a is a top view, 8-b is a front view, and 8-c is a side view;

FIG. 9 is a schematic diagram of the construction of the present invention, wherein 9-a is a front view, 9-b is a side view, and 8-c is a top view;

FIG. 10 is a schematic diagram (I) of the construction of the present invention, wherein 10-a is a front view, 10-b is a side view, 10-c is a top view, and 10-d is an enlarged schematic diagram of the connection between the first precast segment plate and the second precast segment plate;

FIG. 11 is a schematic diagram (II) of the assembly construction of the present invention, wherein 11-a is a front view, 11-b is a side view, 11-c is a top view, and 11-d is an enlarged schematic diagram of the joint of the first precast split plate and the second precast split plate;

FIG. 12 is a schematic diagram (III) of the construction of the present invention, wherein 12-a is a front view, 12-b is a side view, 12-c is a top view, and 12-d is an enlarged schematic diagram of the connection between the first precast split plate and the second precast split plate;

FIG. 13 is a schematic diagram of the assembly construction of the precast slabs according to the present invention, in which 13-a is a front view and 13-b is a side view;

FIG. 14 is a schematic diagram (I) of the assembly construction of the prefabricated panels and the top hat, wherein 14-a is a front view and 14-b is a side view;

FIG. 15 is a schematic diagram (II) of the assembly construction of the prefabricated panels and the top hat of the present invention, wherein 15-a is a front view and 15-b is a side view;

fig. 16 is a schematic structural view of the second embodiment of the present invention, in which 16-a is a front view and 16-b is a top view.

Description of reference numerals: 1. a foundation; 2. a socket slot; 3. connecting columns;

41. prefabricating a first plate dividing plate; 42. prefabricating a second split plate; 43. a joint surface;

51. embedding a stirrup I; 52. embedding a second stirrup in advance; 53. embedding a first reinforcing rib; 54. embedding a second reinforcing rib;

61. longitudinal ribs I; 62. a second longitudinal rib;

7. a seam stirrup; 81. splicing seams at the bottom layer; 82. post-pouring concrete; 83. vertical splicing seams;

91. pre-burying a coarse steel bar; 92. a connector; 93. connecting the thick steel bars;

10. splicing seams on the top layer; 11. a top cap; 12. a coarse steel bar pore channel; 13. grouting material; 14. and (6) jointing the templates.

Detailed Description

It should be noted that, in the present invention, 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 the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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 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 accompanying drawings in conjunction with embodiments.

As shown in fig. 1-5, the prefabricated assembled hollow pier with the concrete vertical splicing seams comprises a foundation 1, a prefabricated plate, vertical splicing seams 83 and a top cap 11, wherein a socket 2 and a connecting column 3 are reserved on the foundation 1, the cross sections of the socket 2 and the connecting column 3 are matched with the cross section of the hollow pier, the prefabricated plate is formed by assembling a plurality of prefabricated sub-plates, the vertical splicing seams 83 are filled between the prefabricated sub-plates along the height direction of a pier to form a closed hollow cross section, the prefabricated plate and the foundation 1 are connected in an inserting mode through the socket 2, and concrete 82 is poured after the prefabricated plate and the foundation 1 are poured; the top cap 11 is located above the precast slabs, and after the precast slabs are assembled, the precast slabs are connected with the top cap 11 through reinforcing steel bars.

The prefabricated plate comprises a prefabricated sub plate I41 and a prefabricated sub plate II 42, the prefabricated sub plate I41 and the prefabricated sub plate II 42 adopt a section form with an opening on one surface, the openings of the prefabricated sub plate I41 and the prefabricated sub plate II 42 are oppositely arranged, and a vertical splicing seam 83 is filled between the end surfaces of the opened prefabricated sub plate I41 and the prefabricated sub plate II 42 along the height direction of a pier to form a closed hollow section; the first prefabricated sub plate 41 and the second prefabricated sub plate 42 are inserted into the periphery of the socket 2 to be chiseled so as to improve the connection performance, and the thicknesses of the cross sections of the first prefabricated sub plate 41 and the second prefabricated sub plate 42 are 5-10cm smaller than that of one side of the socket 2; the prefabricated board that divides adopts one side open-ended cross sectional form, and cross sectional area is little, has reduced the weight of prefabricated construction, convenient transportation and hoist and mount, once prefabricated in hollow mound wall height direction, need not to set up horizontal concatenation seam, has strengthened the wholeness. And joint surfaces 43 on the end surfaces of the first prefabricated sub plate 41 and the second prefabricated sub plate 42 are trapezoidal, so that the connection with the vertical splicing joint is enhanced.

The first prefabricated sub-plate 41 and the second prefabricated sub-plate 42 are provided with embedded stirrups, embedded reinforcing ribs and longitudinal ribs, the pre-buried stirrup comprises a first pre-buried stirrup 51 and a second pre-buried stirrup 52 which are arranged on the end surfaces of the two sides of the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42, the end surfaces of the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42 extend for a certain length, the extending part is U-shaped, the hoop effect is ensured to be exerted, the prefabricated split plates 41 and the prefabricated split plates 42 are uniformly arranged along the height direction of the pier wall, the extending parts of the first embedded stirrups 51 and the second embedded stirrups 52 on the prefabricated split plates correspond to each other, a certain gap is reserved between the extending parts, the prefabricated panels are connected through the joint stirrups 7, so that the assembly of the prefabricated panels is not interfered with each other, the joint stirrups 7 are bound on the inner side and the outer side of the pier wall, the continuity of the embedded stirrups is ensured, the embedded hooping and the embedded hooping jointly form a hoop effect on the vertical splicing seam and are used for resisting the stress of the pier wall in the horizontal direction. The embedded reinforcing ribs comprise an embedded reinforcing rib I53 and an embedded reinforcing rib II 54, are embedded between the end faces of the two sides of the first prefabricated sub plate 41 and the end faces of the two sides of the second prefabricated sub plate 42, extend out of the end faces of the first prefabricated sub plate 41 and the end faces of the second prefabricated sub plate 42 for a certain length, are connected with the extending parts of the first embedded stirrup 51 and the second embedded stirrup 52, and guarantee the connection performance between the first prefabricated sub plate and the vertical splicing seam. The longitudinal ribs comprise a longitudinal rib I61 and a longitudinal rib II 62, are arranged in the through length direction of the pier wall, are positioned at the corner points of a first embedded stirrup 51, a first embedded reinforcing rib 53, a second embedded stirrup 52 and a second embedded reinforcing rib 54, play a role in longitudinal stress when the vertical splicing seam is bent, strengthen the rigidity of the embedded stirrups and the embedded reinforcing ribs and avoid damage in the transportation process. The connecting column 3 is located inside the prefabricated first plate 41 and the prefabricated second plate 42 and is constructed together with the foundation 1, and the top surface of the connecting column 3 is flush with the top surface of the foundation 1 or higher than the top surface of the foundation 1. Vertical concatenation seam 83 adopts the ultra high performance concrete, guarantees the sufficient compressive strength of vertical concatenation seam, has strengthened the joint strength with between the prefabricated plate, and the construction exempts from the vibration, self-compaction, and it is convenient to construct. The post-cast concrete 82 is micro-expansion concrete or high-strength concrete, and is filled in the socket groove 2 and between the first prefabricated divided plate 41 and the second prefabricated divided plate 42 and the connecting column 3.

The reinforcing bar is including setting up the pre-buried coarse reinforcement 91 in the prefabricated plate, pre-buried coarse reinforcement 91 stretches out prefabricated first 41 of branch board and the certain length in prefabricated second 42 top of branch board, is connected coarse reinforcement 93 through connector 92 and top and links to each other, and the pre-buried coarse reinforcement of connector on avoiding the prefabricated plate stretches out the overlength, causes the transportation hoist and mount inconvenient. And (3) hoisting the top cap 11, inserting the connecting coarse steel bars 93 into a coarse steel bar pore channel 12 in the top cap 11, tensioning the connecting coarse steel bars 93, and injecting grout 13 into the coarse steel bar pore channel 12 in a pressing manner to realize the connection of the precast slab and the top cap 11. The prefabricated plates are connected with the foundation through bottom layer splicing seams 81, the bottom layer splicing seams 81 are made of high-strength mortar, are laid on the bottom surfaces of the bearing slots 2 and are connected with the bottom surfaces of the prefabricated plate dividing plates I41 and the prefabricated plate dividing plates II 42. The prefabricated plates are connected with the top cap 11 through top layer splicing seams 10, the top layer splicing seams 10 are made of high-strength mortar, are laid on the top surfaces of the prefabricated plate dividing plates 41 and the prefabricated plate dividing plates 42, and are connected with the top cap 11. The depth of the bearing slot 2 is not less than 2 times of the thicknesses of the prefabricated first split plate 41 and the prefabricated second split plate 42, the prefabricated plates are guaranteed to have enough insertion depth, the required insertion depth is large due to the fact that the section size is large during insertion connection of a general pier stud, the thickness and the engineering quantity of a foundation are affected, the thicknesses of the prefabricated plates are thin, the insertion depth is obviously reduced, the influence on the foundation is small, the problem of difficulty in connection of dense steel bars between the prefabricated plates and the foundation is solved, and the construction speed is high. And the connection parts of the socket slot 2 and the connecting column 3 with the first prefabricated split plate 41 and the second prefabricated split plate 42 are subjected to roughening treatment so as to improve the connection performance.

When the hollow pier is too wide in the transverse direction, as shown in fig. 16, a plurality of prefabricated panels can be arranged and connected by two or more vertical splicing seams 83 in the same connection mode.

The construction method of the prefabricated assembled hollow pier with the concrete vertical splicing seams comprises the following steps:

step one, constructing a foundation 1, a socket groove 2 and a connecting column 3, prefabricating a first prefabricated plate 41, a second prefabricated plate 42 and a top cap 11 to be assembled.

Secondly, laying a bottom layer splicing seam 81 at a corresponding position of the foundation 1, inserting a prefabricated plate I41 at one hoisting side into the socket 2, and connecting the prefabricated plate I with the foundation 1 through the bottom layer splicing seam 81; and the second hoisting side prefabricated plate 42 is inserted into the socket 2 and is connected with the foundation 1 through the bottom splicing seam 81.

And step three, pouring post-cast concrete 82 among the socket groove 2, the connecting column 3, the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42, and completing plug-in connection of the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42 on the two sides.

Step four, binding the joint stirrups 7, erecting the joint templates 14, and pouring the vertical splicing seams 83 to complete the connection between the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42.

And fifthly, paving top layer splicing seams 10 on the top surfaces of the first prefabricated sub plate 41 and the second prefabricated sub plate 42, connecting the embedded thick steel bars 91 with the connecting thick steel bars 93 by using connectors 92, hoisting the top cap 11, inserting the connecting thick steel bars 93 into the thick steel bar hole channels 12 in the top cap 11, and tensioning the connecting thick steel bars 93.

And sixthly, grouting slurry 13 into the thick steel bar hole 12 in a pressing mode to complete connection of the top cap 11 with the first prefabricated sub-plate 41 and the second prefabricated sub-plate 42.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a hollow mound is assembled in prefabrication of vertical concatenation seam of area concrete which characterized in that: the prefabricated slab is formed by splicing a plurality of prefabricated sub-slabs, the vertical splicing seams are filled between the prefabricated sub-slabs along the height direction of a pier, so that the prefabricated slab forms a closed hollow section, the prefabricated slab and the foundation are connected in an inserting manner through socket grooves, and then concrete is poured after pouring; the top cap is positioned above the prefabricated plates, and after the prefabricated plates are assembled, the prefabricated plates are connected with the top cap through reinforcing steel bars.

2. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to claim 1, characterized in that: the prefabricated plate comprises a prefabricated sub plate I and a prefabricated sub plate II, the prefabricated sub plate I and the prefabricated sub plate II are of a plate type structure with one side open, openings of the prefabricated sub plate I and the prefabricated sub plate II are oppositely arranged, and a vertical splicing seam is filled between the two ends of the prefabricated sub plate I and the prefabricated sub plate II along the height direction of a pier to form a closed hollow section.

3. The prefabricated assembled hollow pier with the concrete vertical splicing seam as claimed in claim 2, wherein: the prefabricated plate I and the prefabricated plate II are provided with pre-embedded stirrups, the pre-embedded stirrups extend out of the two side end faces of the prefabricated plate I/II, the extending parts are U-shaped and are uniformly arranged along the height direction of the pier wall, the extending parts of the pre-embedded stirrups on the prefabricated plate I and the prefabricated plate II correspond to each other, a gap is reserved between the extending parts of the pre-embedded stirrups, and the pre-embedded stirrups are connected through seam stirrups; the middle of the end faces of two sides of the first prefabricated sub-plate and the second prefabricated sub-plate is provided with an embedded reinforcing rib, and the embedded reinforcing rib extends out of the first/second end faces of the prefabricated sub-plates and is connected with the extending part of the embedded stirrup; longitudinal bars are arranged at the corners of the embedded stirrups and the intersections of the embedded stirrups and the embedded reinforcing ribs, and the longitudinal bars are arranged in the through length direction of the pier wall.

4. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to any one of claims 1 to 3, wherein: the reinforcing bar is including setting up the pre-buried coarse reinforcement in the prefabricated plate, pre-buried coarse reinforcement stretches out the prefabricated plate top, and it is continuous with the top connection coarse reinforcement through the connector, hoist and mount hood, to connect the coarse reinforcement and insert the coarse reinforcement pore in the hood, during the thick reinforcement pore is connected to the stretch-draw to thick reinforcement pore middling pressure notes grout, realize being connected of prefabricated plate and hood.

5. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to any one of claims 1 to 3, wherein: the prefabricated slab is connected with the foundation through a bottom splicing seam, and the bottom splicing seam is made of high-strength mortar and laid on the bottom surface of the socket groove to be connected with the bottom surface of the prefabricated slab.

6. The prefabricated assembled hollow pier with the concrete vertical splicing seam as claimed in claim 5, wherein: the prefabricated slab is connected with the top cap through a top layer splicing seam, and the top layer splicing seam is made of high-strength mortar and is laid on the top surface of the prefabricated slab and connected with the top cap.

7. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to claim 1, characterized in that: the connecting column is positioned in the precast slab and is constructed together with the foundation, and the top surface of the connecting column is flush with or higher than the top surface of the foundation.

8. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to claim 1, characterized in that: the vertical splicing seams are made of ultra-high performance concrete, and the post-cast concrete is made of micro-expansion concrete or high-strength concrete and is filled in the socket grooves.

9. The prefabricated assembled hollow pier with the concrete vertical splicing seam as claimed in claim 2 or 3, wherein: when the hollow pier is transversely too wide, a plurality of prefabricated sub-plates can be arranged, and the prefabricated sub-plates are connected through two or more vertical splicing seams, so that the prefabricated plates form a closed hollow section.

10. The prefabricated assembled hollow pier with the concrete vertical splicing seam according to claim 1, characterized in that: the depth of the socket groove is not less than 2 times of the thickness of the prefabricated slab pier wall.

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