CN114438874A

CN114438874A - Assembly type bridge pier, assembly method of bridge pier and bridge

Info

Publication number: CN114438874A
Application number: CN202011193348.9A
Authority: CN
Inventors: 杜平; 张广海; 安明媚; 董华行; 张文娜
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-05-06
Anticipated expiration: 2040-10-30
Also published as: CN114438874B

Abstract

The disclosure relates to an assembly pier, an assembly method of a pier and a bridge. The assembled pier comprises a pier stud and a cover beam arranged at the top of the pier stud, a grouting cavity is formed between the top of the pier stud and the bottom of the cover beam, the cover beam is provided with a grouting channel and an overflowing channel in the vertical direction respectively, one end of the grouting channel and the overflowing channel is communicated to the grouting cavity, the other end of the grouting channel and the overflowing channel penetrates through the top of the cover beam, the grouting channel is located in the middle of the grouting cavity, and the overflowing channel is provided with a plurality of grouting channels and is arranged around the grouting channel. Through the technical scheme, the cover beam-pier stud can be ensured not to discharge air bubbles at the center of the home-play face, the joint strength is high, and grouting is dense.

Description

Assembly type bridge pier, assembly method of bridge pier and bridge

Technical Field

The disclosure relates to the technical field of rail transit, in particular to an assembly method of an assembly type bridge pier and a bridge pier and the bridge.

Background

Compared with an integral pier, the assembled pier has many advantages in the manufacturing and construction processes, and is gradually widely applied to rail transit engineering. In the construction process, a splicing gap usually exists between a pier column of a pier and a prefabricated capping beam, and slurry needs to be poured to fill the gap. Because the splicing gap is usually regional great and thick liquid again is comparatively thick, be formed with the bubble easily in the contact surface department of pier stud and prefabricated bent cap for the grout is not closely knit, thereby leads to the intensity of node not enough.

Disclosure of Invention

The first purpose of this disclosure is to provide an assembled pier, can improve the closely knit nature and the plumpness that the node is in milk, guarantees the intensity of node.

In order to achieve the above object, the present disclosure provides an assembled pier, which includes a pier stud and a capping beam mounted on the top of the pier stud, wherein a grouting cavity is formed between the top of the pier stud and the bottom of the capping beam, the capping beam is provided with a grouting channel and a grout overflow channel in a vertical direction, one end of the grouting channel and one end of the grout overflow channel are communicated to the grouting cavity, and the other end of the grouting channel and the other end of the grout overflow channel penetrate through the top of the capping beam, wherein the grouting channel is located in the middle of the grouting cavity, and the grout overflow channel has a plurality of channels and is arranged around the grouting channel.

Optionally, the assembled pier further comprises a plurality of sets of adjusting pads arranged between the top of the pier stud and the bottom of the capping beam, so that a gap is formed between the pier stud and the capping beam in the vertical direction; the outer peripheral face of pier stud is provided with upwards stretches out the fender thick liquid template at the top of pier stud, keep off the inside wall of thick liquid template, the top of pier stud with the bottom of bent cap encloses jointly and is become the grout chamber.

Optionally, the adjusting pad is formed with the breach, the breach includes insertion portion and intercommunication portion, insertion portion is used for inserting the vertical direction of edge of pier stud is worn out the muscle that indulges at top, and the shape with indulge the outer peripheral face of muscle and suit, the intercommunication portion with the grout chamber is linked together.

Optionally, keep off the thick liquid template including can butt joint each other in order to encircle first template and second template on the outer peripheral face of pier stud, first template includes that first fender thick liquid portion and being located the first installation department at the extending direction both ends of first fender thick liquid portion, the second template includes that the second keeps off thick liquid portion and being located the second installation department at the extending direction both ends of second fender thick liquid portion, first fender thick liquid portion with the shape of the inside wall of second fender thick liquid portion with the outer peripheral face phase-match of pier stud, first installation department with second installation department detachably installs together.

Optionally, the inner side surface of the pulp blocking template is provided with a sealing ring.

Optionally, the upper surface or the lower surface of the grouting cavity is configured as a non-smooth surface.

Optionally, the pier stud has the locating plate, be provided with a plurality of confessions on the locating plate the locating hole that the muscle that indulges of pier stud passed, each the inside of locating hole is provided with the location stopper that forms by two halfcylinders butt joints respectively, the location stopper have the axis with the spacing passageway of the coincidence of the centre of a circle of locating hole, spacing passageway is followed the direction of wearing out of indulging the muscle is formed with holding portion and spacing portion, the diameter of spacing portion is less than holding portion diameter just the diameter of spacing portion with the outer peripheral face of indulging the muscle suits.

A second object of the present disclosure is to provide a method for assembling a pier, for assembling the above-mentioned fabricated pier, the method comprising:

temporarily fixing the bent cap at the top of the pier stud through a fixing structure;

grouting slurry into the grouting channel until the slurry overflows from the slurry overflow channel;

and plugging the outlet of the slurry overflow channel, and continuously pouring the slurry until the slurry overflows from the grouting channel.

Optionally, the fixed knot constructs including frock reinforcing bar, connecting piece and anchor subassembly, the anchor subassembly is used for fixed mounting in on the bent cap, will the bent cap passes through fixed knot structure and fixes temporarily the step at the top of pier stud includes:

inserting a plurality of longitudinal ribs of the pier stud, which penetrate out of the top along the vertical direction, into the slurry overflow channel from bottom to top;

inserting the tooling steel bar into the slurry overflow channel from top to bottom, and detachably connecting the longitudinal bar and the tooling steel bar together through the connecting piece.

Optionally, the connecting member is configured to be a sleeve with an internal thread, and an external thread matched with the internal thread is formed at one end of the longitudinal bar for connecting with the tool steel bar.

Optionally, the anchor subassembly includes fixed bolster and fastener, the fixed bolster be used for fixed set up in the top of bent cap, including two square through pipes of range upon range of setting from top to bottom, be provided with the confession on the square through pipe the through-hole that the frock reinforcing bar passed, the fastener is fastening nut, is used for the frock reinforcing bar is worn out behind the through-hole will the frock reinforcing bar is fixed on the fixed bolster, the last observation window of having seted up of fixed bolster.

A third object of the present disclosure is to provide a bridge comprising the fabricated pier described above.

Through above-mentioned technical scheme, can realize that the thick liquids from roughly being located the grout passageway of the central point department of grout chamber and pouring into, then expand gradually to whole grout chamber, along with the thick liquids of pouring constantly increase, overflow in the final a plurality of excessive thick liquids passageways that set up around grout passageway. Because the slurry is poured from the center of the grouting cavity, the central position of the contact surface of the bent cap-pier column can be ensured not to generate bubbles, and the slurry needs to be poured until the slurry overflows from the slurry overflow channel, so that the grouting compactness and plumpness of the whole node are further ensured, and the strength of the node is improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

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

FIG. 1 is a schematic view of an assembled pier provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a partial schematic view of a top of a capping beam provided by an exemplary embodiment of the present disclosure;

FIG. 3 is a partial schematic view of another capping beam top provided by an exemplary embodiment of the present disclosure;

fig. 4 is a plan view of the fabricated pier of fig. 1;

fig. 5 is a sectional view of the fabricated pier of fig. 4 taken along a direction a-a;

FIG. 6 is a sectional view of the fabricated pier of FIG. 5 taken along the direction B-B;

FIG. 7 is a top schematic view of a square cross-section pier provided in an exemplary embodiment of the present disclosure;

fig. 8 is a top schematic view of a pier provided in an exemplary embodiment of the present disclosure having a circular cross-section;

FIG. 9 is a schematic view of a conditioner mat provided by an exemplary embodiment of the present disclosure;

FIG. 10 is a schematic view of another conditioner mat provided by an exemplary embodiment of the present disclosure;

FIG. 11 is a cross-sectional view taken along the line C-C in FIG. 7 or FIG. 8;

FIG. 12 is a schematic view of a grout blocking template provided in exemplary embodiments of the present disclosure;

fig. 13 is a schematic illustration of a pier provided in an exemplary embodiment of the present disclosure;

FIG. 14 is a schematic view of a locating plate provided in an exemplary embodiment of the present disclosure;

FIG. 15 is a schematic view of another positioning plate provided in an exemplary embodiment of the present disclosure;

fig. 16 is a cross-sectional view of the pier with the alignment plate installed provided in the exemplary embodiment of the present disclosure;

fig. 17 is a schematic view of a locating plug provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-pier stud, 11-longitudinal rib, 12-positioning plate, 12 a-first positioning plate, 12 b-second positioning plate, 121-positioning hole, 122-positioning plug, 1221-accommodating part, 1222-limiting part, 2-cover beam, 21-grouting channel, 22-grout overflow channel, 3-grouting cavity, 4-adjusting pad, 41-notch, 411-inserting part, 412-communication part, 5-grout blocking template, 51-first template, 511-first grout blocking part, 512-first mounting part, 52-second template, 521-second grout blocking part, 522-second mounting part, 6-fixing structure, 61-tooling steel bar, 62-connecting piece, 63-anchoring component, 631-fixing bracket, 6311-observation window, 632-fasteners.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, use of directional words such as "upper" and "lower" generally means that the terms are defined with reference to the drawing plane of the corresponding drawing, and "inner" and "outer" mean that the corresponding part is contoured both inwardly and outwardly. The terms "first," "second," and the like are used herein to distinguish one element from another, and are not intended to be sequential or important. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.

According to an embodiment of the present disclosure, as shown in fig. 1 to 17, there is provided an assembly pier including a pier stud 1 and a capping beam 2, the capping beam 2 being adapted to be mounted on top of the pier stud 1. A grouting cavity 3 is formed between the top of the pier stud 1 and the bottom of the bent cap 2, the grouting cavity 3 is filled with grouting slurry, and the grouting cavity 3 is a sealed cavity. The capping beam 2 is provided with a grouting passage 21 and a grout overflow passage 22 in the vertical direction, respectively. One end of the grouting channel 21 and the grout overflow channel 22 is communicated to the grouting chamber 3, and the other end thereof penetrates the top of the capping beam 2. The grouting channel 21 is located in the middle of the grouting cavity 3, where "middle" refers to the middle of the grouting cavity 3 in the horizontal plane direction. It should be noted that, depending on the shape and size of the grouting cavity 3, the grouting channel 21 may not be located exactly at the center of the grouting cavity 3, but may be allowed to have a certain offset within a range that can ensure that no air bubbles are present in the middle of the contact surface between the coping and the pier stud.

The grout passage 22 is provided in plurality and arranged around the grout passage 21. The manner in which the grout passage 22 surrounds the grout passage 21 may be determined according to the shape of the pier stud 1 used. For example, when the pier 1 is circular in cross-section, the slurry overflow channels 22 may be evenly spaced in a circular ring shape as shown in fig. 2, and when the pier 1 is square in cross-section, the slurry overflow channels 22 may be evenly spaced in a rectangular shape as shown in fig. 3. In some embodiments, the slurry overflow channel 22 may be formed by circumferentially arranging a metal threaded pipe inside the capping beam 2. Pier stud 1 has along vertical direction many and indulges muscle 11, and these many are indulged muscle 11 and are regarded as pier stud 1's steel reinforcement cage "skeleton", finally form pier stud 1 after pouring, indulge the top surface that muscle 11 upwards worn out pier stud 1. The number of the metal screw pipes used as the grout passage 22 may be the same as the number of the longitudinal bars 11 of the reinforcement cage framework as the pier stud 1, and the longitudinal bars 11 are used to be inserted into the metal screw pipes, thereby installing the coping 2 to the top of the pier stud 1. The diameter of the longitudinal ribs 11 should be smaller than the pipe diameter of the slurry overflow channel 22 so that the slurry can smoothly overflow from the slurry overflow channel 22.

The assembled pier that this disclosure provided can make the grout blanket of filling in grout chamber 3 more closely knit, especially makes bent cap-pier stud contact surface central point put and can not appear the bubble. As a method for grouting to obtain a more compact grouting layer using the above-described assembled pier, that is, a method for assembling a pier, the method includes: s1, temporarily fixing the bent cap 2 on the top of the pier stud 1 through a fixing structure; step S2, grouting slurry into the grouting channel until the slurry overflows from the slurry overflow channel; and step S3, the outlet of the slurry overflow channel is blocked, and slurry is continuously poured until the slurry overflows from the grouting channel. Specifically, in order to further improve the compactness and the fullness of the grouting by filling the slurry from the slurry storage device into the grouting channel 21 through the grouting equipment, the slurry entering the grouting channel 21 may be pressurized by providing a pressurizing device (e.g., a small-sized pressurizing pump) at the slurry inlet. The slurry entering the grouting cavity 3 through the grouting channel 21 spreads throughout the grouting cavity, and as the injected slurry increases, the slurry eventually overflows from a plurality of slurry overflow channels 22 provided around the grouting channel 21. After the slurry overflows the top of the cover beam 2 from the plurality of slurry overflow channels 22, stopping the slurry plug at the outlet plug of the slurry overflow channel 22, and continuing to fill the slurry until the slurry overflows from the grouting channel 21, and stopping grouting.

Through the technical scheme, the assembly type pier disclosed by the invention can realize that slurry is poured into the middle of the grouting cavity 3 from the grouting channel 21, namely the grouting channel 21 roughly located in the middle of the grouting cavity 3 is poured into the assembly type pier, then the assembly type pier is gradually expanded to the whole grouting cavity 3, and the slurry is continuously increased and finally overflows from a plurality of slurry overflow channels 22 arranged around the grouting channel 21. Because the slurry is poured from the middle part of the grouting cavity 3, the middle part of the contact surface of the bent cap-pier column can be ensured not to generate bubbles, and the slurry needs to be poured until overflowing from the slurry overflowing channel 22, so that the grouting compactness and plumpness of the whole node are further ensured, and the strength of the node is improved.

Before grout is poured into the grouting cavity 3 between the top of the pier stud 1 and the bottom of the capping beam 2, the capping beam 2 needs to be temporarily fixed to the top of the pier stud 1. Common temporary fixing measures of the fabricated bent cap mainly adopt a hoop method, a core rod penetrating method, construction methods of building a steel pipe bailey frame, a steel structure platform and the like. Although the temporary fixing measures can ensure the stability of the prefabricated capping beam during hoisting, the construction process is complex, the material investment is large, and the cost is high. For example. The support of the core-through rod method has low stability, the sedimentation amount is difficult to control, and the support has physical damage to the pier stud. For another example, the steel pipe bailey frame has high requirements on the bearing capacity of the foundation, the foundation needs to be reinforced, and the pier top platform structure is complex in stress.

According to the embodiment of the present disclosure, as shown in fig. 4 to 6, a fixing structure 6 is provided, the fixing structure 6 includes a tooling steel bar 61, a connecting member 62 and an anchor assembly 63, and the anchor assembly 63 is used for fixedly mounting the tooling steel bar 61 on the cover beam 2. In the process of temporarily fixing the capping beam 2 to the top of the pier stud 1, firstly according to step S11, the capping beam 2 may be hoisted to the top of the pier stud 1 by using an overhead crane, and a plurality of longitudinal ribs 11 of the pier stud 1, which penetrate out of the top in the vertical direction, are inserted into the grout overflow channel 22 from bottom to top; then, according to step S12, the fixture reinforcing bar 61 is inserted into the grout channel 22 from the top down, and the fixture reinforcing bar 61 and the longitudinal bar 11 are detachably connected together by the connecting member 62. The tooling steel bars 61 may be steel bars having the same specification as the longitudinal bars 11, specifically, one end of the tooling steel bars 61 is connected with the longitudinal bars 11 through the connecting member 62, and the other end is connected with the anchoring assembly 63, because the anchoring assembly 63 is fixedly installed with the capping beam 2, for example, fixedly installed at the top of the capping beam 2, so that the tooling steel bars 61 connected with the anchoring assembly 63 are fixed with the capping beam 2.

This kind of fixed knot constructs 6 with the help of the structural feature of pier stud 1 itself, through the direct mode of being connected with indulging muscle 11 of frock reinforcing bar 61, realizes the purpose of bent cap 2 temporary fixation on pier stud 1, and need not to do any destructive treatment to pier stud 1 itself or ground, has guaranteed the integrality of pier stud structure, and is more convenient in the operation.

In some embodiments, as shown in fig. 5 and 6, the connecting member 62 may be configured in a sleeve shape having an internal thread, and an end of the longitudinal bar 11 for connection with the tool steel bar 61 is formed with an external thread to be engaged with the internal thread of the connecting member 62. Alternatively, in some embodiments, the connecting member 62 may be integrally formed with the fixture bar 61 to reduce the number of parts in the fixing structure 6, and in other embodiments, the connecting member 62 may be detachably connected to the fixture bar 61, for example, one end of the fixture bar 61 may be formed with an external thread matching with the internal thread of the connecting member 62. Through the mode of screw thread releasable connection, can also make fixed knot construct 6 can be by reuse, reduce cost and improve production efficiency. In addition, adopt threaded sleeve and frock reinforcing bar 61 cooperation can avoid the high altitude cutting reinforcing bar, and the reinforcing bar is difficult for the corrosion, has both guaranteed the security of construction and can guarantee the stability of structure again.

The anchor assembly 63 includes a stationary bracket 631 and a fastener 632. The fixing bracket 631 is configured to be fixed to the top of the cover beam 2, for example, the fixing bracket may be fixed to the top of the cover beam 2 by welding, and the fastener 632 is configured to fix the fixture steel bar 61 to the fixing bracket 631. Optionally, the fixing bracket 631 may include two square through pipes stacked up and down, a through hole for the tooling steel bar 61 to pass through is provided on the square through pipe, and the fastener 632 is a fastening nut for fixing the tooling steel bar 61 on the fixing bracket 631 after the tooling steel bar 61 penetrates out of the through hole. The fastener 632 may also fix the fixture steel bar 61 to the fixing bracket 631 by using a jackscrew, and the fixing bracket 631 is not limited to a square tube, and may also be a welded truss, which may also provide a secure connection between the fixing bracket 631 and the fixture steel bar 61.

In addition, to facilitate observation of the slurry overflow channel 22 for overflow of slurry. As shown in fig. 5, the fixing bracket 631 is provided with an observation window 6311 for observing whether the slurry overflows from the slurry overflow path 22, and the observation window 6311 may be directly formed by cutting the sidewall of the communicating pipe.

In the process of hoisting the bent cap 2 to the top of the pier stud 1, the elevation adjustment is an important link in the construction process of the assembled pier. According to an embodiment of the present disclosure, with continued reference to fig. 1, the fabricated pier further comprises a plurality of sets of adjustment pads 4 disposed between the top of the pier stud 1 and the bottom of the capping beam 2, the adjustment pads 4 comprising block-shaped and sheet-shaped to make coarse and fine adjustments to the elevation of the pier top. For example, a coarse level may be performed by using the block-shaped pad 4, and then a fine level may be performed by using the sheet-shaped pad 4. The thickness of the cushion block is different from 10 mm, 15 mm and 20 mm, and the thickness of the gasket is different from 0.5 mm, 1 mm, 2 mm and 5 mm. Referring to fig. 11, a gap is formed between the top of the pier stud 1 and the bottom of the cover beam 2 in the vertical direction by arranging the adjusting pad 4, a grout blocking template 5 extending upwards out of the top of the pier stud 1 is arranged on the outer peripheral surface of the pier stud 1, and the inner side wall of the grout blocking template 5, the top of the pier stud 1 and the bottom of the cover beam 2 jointly enclose a grouting cavity 3.

The appearance of present adjusting pad is mostly squarely, and the difficult installation of the form of this kind of adjusting pad is fixed, and needs the cooperation to sit thick liquid and adjust the mound top elevation jointly. To solve the technical problem, according to an embodiment of the present disclosure, as shown in fig. 9 and 10, the adjusting pad 4 is formed with a notch 41, the notch 41 includes an insertion portion 411 and a communication portion 412, and referring to fig. 7 and 8, the insertion portion 411 is used for inserting the vertical longitudinal rib 11 of the pier stud 1, which penetrates out of the top portion, and is shaped to be matched with the outer contour of the longitudinal rib 11, for example, the insertion portion 411 is formed in a semicircular shape to be matched with the outer contour of the cylindrical longitudinal rib 11, and the communication portion 412 is communicated with the grouting cavity 3. Specifically, in the embodiment shown in fig. 7 to 10, the pad 4 is provided in four groups and respectively provided on the four longitudinal ribs 11 at regular intervals so that the lid beam 2 can be stably seated on the pad 4.

The adjusting pad provided with the notch 41 is convenient to be connected and fixed with the pier stud 1, construction safety is guaranteed, and the position of the adjusting pad 4 matched with the longitudinal rib 11 is more accurate due to the fact that the longitudinal rib 11 is fixed. In addition, the gasket (for example straight platelike) of traditional shape need cooperate the method elevation of sitting thick liquid, and the method of sitting thick liquid can not carry out the fine tuning to the elevation, leads to the error great, and construction quality is difficult for guaranteeing, uses the great problem of error that the above-mentioned adjusting pad 4 that has breach 41 can avoid the method elevation of sitting thick liquid to produce.

Further, the outer contour of the adjusting pad 4 can be designed adaptively according to the shape of the pier stud 1. The adjusting pad 4 can be cut out of a Q235B steel plate, and the pad have the same outer contour shape but only have different thicknesses. In the embodiment shown in fig. 9 the long side of the pad 4 is straight and is suitable for application to a square section of the pier 1, whereas in the embodiment shown in fig. 10 the long side of the pad 4 is curved and is suitable for application to a circular section of the pier 1. In addition, the length of the long side of the pad 4 or the arc of the arc line may be adaptively adjusted according to the diameter size of the pier stud 1 or when the outer circumferential surface of the pier stud 1 is provided with a protective layer.

The block-shaped and sheet-shaped adjusting pads 4 are used in combination for controlling the elevation of the pier top, so that the cover beam can be conveniently hoisted in place. During construction, a block-shaped adjusting pad 4 is installed on a preset longitudinal rib 11 by using a high-altitude vehicle, then elevation measurement is carried out on the adjusting pad 4 through a level meter and other devices, the total elevation of the bottom of the cover beam 2 is not reached, the adjusting pad 4 is adjusted by using a sheet-shaped adjusting pad 4, the tops of all the adjusting pads 4 are ensured to be in the same horizontal plane, and the total thickness of the adjusting pad 4 is 10-20 mm.

As a concrete implementation form of the grout blocking template 5, the grout blocking template 5 may include a first template 51 and a second template 52 which can be spliced with each other to surround the outer circumferential surface of the pier stud 1, in the embodiment shown in fig. 12, the first template 51 and the second template 52 have the same configuration, and specifically, the first template 51 includes a first grout blocking portion 511 and first mounting portions 512 located at both ends of the first grout blocking portion 511 in the extending direction; the second template 52 includes a second slurry blocking portion 521 and second mounting portions 522 located at both ends in the extending direction of the second slurry blocking portion 521. In order to prevent a gap from occurring between the outer peripheral surfaces of the first grout blocking portion 511 and the second grout blocking portion 521, which affects the grout blocking effect, the inner side walls of the first grout blocking portion 511 and the second grout blocking portion 521 are matched with the outer peripheral surface of the pier stud 1, in other words, the first grout blocking portion 511 and the second grout blocking portion 521 can be attached to the outer peripheral surface of the pier stud 1. The first and second mounting

portions

512 and 522 are detachably mounted together by, for example, a threaded fastener, which configures the grout stop 5 to be detachable from the pier stud 1, for easy installation and adjustment. To further ensure the compactness of grouting, the inner side surface of the grout blocking template 5 is provided with a sealing ring (not shown in the figure).

In order to increase the contact area of the grout with the top surface of the pier stud 1 or the bottom surface of the coping 2, thereby improving stability and firmness, referring to fig. 1, 7 and 8, the upper surface or the lower surface of the grout chamber 3 is configured as a non-smooth surface, that is, the top of the pier stud 1 and/or the area of the bottom of the coping 2 for forming the grout chamber 3 is configured as a non-smooth surface S, and specifically, the non-smooth surface S may be formed only at the top of the pier stud 1, only at the bottom of the coping 2, or both at the top of the pier stud 1 and at the bottom of the coping 2. In some embodiments, the non-smooth surface S is formed by roughening, and particularly, after the adjustment pad 4 is installed, the top of the pier 1 except for the area where the adjustment pad 4 is installed may be roughened.

In order to facilitate the positioning of the bent cap 2 and the pier stud 1 during matching, the positioning plate 12 is adopted to position the longitudinal rib 11 in the process of binding the reinforcement cage of the pier stud 1. In the embodiment shown in fig. 13 to 15, the pier stud 1 has a first positioning plate 12a and a second positioning plate 12b at both ends thereof, the positioning plate 12 is provided with a plurality of positioning holes 121 through which the longitudinal ribs 11 of the pier stud 1 pass, and the number of the positioning holes 121 is the same as the number of the longitudinal ribs 11. With continued reference to fig. 16 and 17, a fixed positioning plug 122 formed by butting two semi-cylinders is respectively disposed inside each positioning hole 121, and the butted positioning plug 122 has a limiting channel for the longitudinal rib 11 to pass through, and an axis of the limiting channel coincides with a circle center of the positioning hole 121. The spacing passageway is formed with accommodating part 1221 and spacing portion 1222 along the direction of wearing out of indulging muscle 11, and the diameter of spacing portion 1222 is less than the accommodating part 1221 diameter, and the diameter of spacing portion 1222 suits with the outer peripheral face of indulging muscle 11.

Specifically, the diameter of the accommodating portion 1221 is larger than the diameter of the longitudinal rib 11, so that the longitudinal rib 11 can be more easily inserted into the positioning plug 122, and as the diameter of the limiting channel gradually narrows, the diameter of the limiting portion 1222 is adapted to the outer peripheral surface of the longitudinal rib 11, that is, the limiting portion 1222 is attached to the outer peripheral surface of the longitudinal rib 11, so as to limit the position of the longitudinal rib 11. The axis of the limiting channel coincides with the center of the positioning hole 121, so that the longitudinal rib 11 is further limited to the center of the positioning hole 121.

In addition, the present disclosure further provides a bridge, which has the fabricated bridge pier described above, and the bridge pier is assembled by using the capping beam-pier stud node grouting method described above, and the bridge has all the beneficial effects of the fabricated bridge pier described above, and the details are not repeated herein.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. An assembled pier comprises a pier stud (1) and a cover beam (2) installed at the top of the pier stud (1), and is characterized in that a grouting cavity (3) is formed between the top of the pier stud (1) and the bottom of the cover beam (2), the cover beam (2) is provided with a grouting channel (21) and a grout overflow channel (22) in the vertical direction, one ends of the grouting channel (21) and the grout overflow channel (22) are communicated to the grouting cavity (3), the other ends of the grouting channel (21) and the grout overflow channel (22) penetrate through the top of the cover beam (2), the grouting channel (21) is located in the middle of the grouting cavity (3), and the grout overflow channel (22) is provided with a plurality of grouting channels and surrounds the grouting channel (21).

2. Assembled pier according to claim 1, characterized by further comprising sets of adjustment pads (4) arranged between the top of the pier stud (1) and the bottom of the cap beam (2) so that a gap is formed between the pier stud (1) and the cap beam (2) in the vertical direction; the outer peripheral face of pier stud (1) is provided with upwards stretches out keep off thick liquid template (5) at the top of pier stud (1), keep off the inside wall of thick liquid template (5) the top of pier stud (1) with the bottom of bent cap (2) encloses jointly and is synthesized grouting cavity (3).

3. The assembled pier according to claim 2, wherein the adjusting pad (4) is formed with a gap (41), the gap (41) comprises an insertion portion (411) and a communication portion (412), the insertion portion (411) is used for inserting the longitudinal rib (11) of the pier stud (1) which penetrates out of the top portion in the vertical direction and is adapted to the outer peripheral surface of the longitudinal rib (11), and the communication portion (412) is communicated with the grouting cavity (3).

4. The assembled pier according to claim 2, wherein the grout blocking template (5) comprises a first template (51) and a second template (52) which can be butted against each other to embrace the outer circumferential surface of the pier stud (1), the first template (51) comprises a first grout blocking portion (511) and first installation portions (512) located at both ends in the extending direction of the first grout blocking portion (511), the second template (52) comprises a second grout blocking portion (521) and second installation portions (522) located at both ends in the extending direction of the second grout blocking portion (521), the inner side walls of the first grout blocking portion (511) and the second grout blocking portion (521) are matched in shape with the outer circumferential surface of the pier stud (1), and the first installation portions (512) and the second installation portions (522) are detachably installed together.

5. Assembly pier according to claim 4, wherein the inner side surface of the grout stop template (5) is provided with a sealing ring.

6. Assembled pier according to claim 1, characterized in that the upper or lower surface of the grouting cavity (3) is configured as a non-smooth surface.

7. The assembled pier according to claim 1, wherein the pier stud (1) is provided with a positioning plate (12), the positioning plate (12) is provided with a plurality of positioning holes (121) for the longitudinal ribs (11) of the pier stud (1) to pass through, a positioning plug (122) formed by butting two semi-cylindrical bodies is arranged inside each positioning hole (121), the positioning plug (122) is provided with a limiting channel, the axis of the limiting channel coincides with the center of the positioning hole (121), the limiting channel is provided with a containing part (1221) and a limiting part (1222) along the penetrating direction of the longitudinal ribs (11), the diameter of the limiting part (1222) is smaller than that of the containing part (1221), and the diameter of the limiting part (1222) is matched with the outer peripheral surface of the longitudinal ribs (11).

8. A method for assembling a bridge pier, which is used for assembling the bridge pier according to any one of claims 1 to 7, and which comprises:

9. The assembling method of the pier according to claim 8, wherein the fixing structure comprises a tooling steel bar (61), a connecting member (62) and an anchoring assembly (63), the anchoring assembly (63) is used for being fixed on the cap beam (2), and the step of temporarily fixing the cap beam on the top of the pier through the fixing structure comprises the following steps:

inserting the tooling steel bar into the slurry overflow channel from top to bottom, and detachably connecting the tooling steel bar and the longitudinal bar together through the connecting piece.

10. The pier assembling method according to claim 9, wherein the connecting member (62) is configured in a sleeve shape having an internal thread, and an end of the longitudinal bar (11) to which the tool bar (61) is connected is formed with an external thread that is engaged with the internal thread.

11. The assembling method of the bridge pier according to claim 9, wherein the anchor assembly (63) comprises a fixing support (631) and a fastener (632), the fixing support (631) is used for being fixedly arranged at the top of the cover beam (2) and comprises two square through pipes which are arranged in an up-and-down stacking mode, through holes for the tool steel bars (61) to pass through are formed in the square through pipes, the fastener (632) is a fastening nut and used for fixing the tool steel bars (61) on the fixing support (631) after the tool steel bars (61) penetrate through the through holes, and an observation window (6311) is formed in the fixing support (631).

12. A bridge girder comprising an assembled pier according to any one of claims 1 to 7.