CN105421222A - Socket and spigot joint type connection structure for bridge prefabricated pier stand column and bearing platform and splicing method of socket and spigot joint type connection structure - Google Patents

Socket and spigot joint type connection structure for bridge prefabricated pier stand column and bearing platform and splicing method of socket and spigot joint type connection structure Download PDF

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Publication number
CN105421222A
CN105421222A CN201510967124.1A CN201510967124A CN105421222A CN 105421222 A CN105421222 A CN 105421222A CN 201510967124 A CN201510967124 A CN 201510967124A CN 105421222 A CN105421222 A CN 105421222A
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China
Prior art keywords
column
built
hole
cushion cap
groove
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CN201510967124.1A
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Chinese (zh)
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CN105421222B (en
Inventor
姜海西
周良
査义强
黄国斌
陆元春
沙丽新
吴刚
王志强
吴建兵
朱鹏志
张玉富
聂志宏
范雷
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上海市城市建设设计研究总院
上海公路投资建设发展有限公司
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Priority to CN201510967124.1A priority Critical patent/CN105421222B/en
Publication of CN105421222A publication Critical patent/CN105421222A/en
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Publication of CN105421222B publication Critical patent/CN105421222B/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a socket and spigot joint type connection structure for a bridge prefabricated pier stand column and a bearing platform. The structure comprises the stand column and the bearing platform, the stand column comprises an exposed end and an embedded end, the bearing platform is provided with a stand column installing groove in the vertical direction, the cross section shape and the size of the stand column installing groove are matched with the cross section shape and the size of the embedded end so that the stand column can be embedded in the stand column installing groove, and the gap between the outer wall of the embedded end of the stand column and the inner wall of the stand column installing groove is greater than or equal to 2 cm; mud jacking holes are formed in the top face of the bearing platform, first mud outlets are formed in the bottom face of the stand column installing groove, and a mud jacking channel is formed between each mud jacking hole and the corresponding first mud outlet. The invention discloses a splicing method of the socket and spigot joint type connection structure. According to the socket and spigot joint type connection structure for the bridge prefabricated pier stand column and the bearing platform and the splicing method of the socket and spigot joint type connection structure, it is not needed to pre-bury a large number of pre-buried parts in the prefabricated stand column or the bearing platform, the positioning accuracy requirement for site operation is low, the adjusting redundancy is large, and requirements for construction machinery and the like are not high; site steel bar binding and welding and large-scale concrete pouring work are not needed, and site installation is fast, convenient and small in working load.

Description

Bridge prefabrication pier column and cushion cap socket type connecting structure and assembling method thereof
Technical field
The present invention relates to bridge construction technical field, particularly a kind of bridge prefabrication pier column and cushion cap socket type connecting structure and assembling method thereof.
Background technology
In prior art, bridge construction precast pier column and the assembled of cushion cap are typically employed in embedded sleeve barrel in column or cushion cap, built-in metal bellows and adopt prestress wire, and the connecting reinforcement then in cushion cap or column accurately locates socket three kinds of built-in fitting Splicing models; In addition, prefabricated one section of column while of also having on cushion cap, arranges one section of cast in situs section and precast pier and cushion cap is linked to be overall joining method between this column and top column.
Due to above-mentioned three kinds of conventional built-in fitting Splicing models all need in column or cushion cap the built-in fitting such as pre-buried a fairly large number of sleeve, bellows or prestress pipe, and it is higher to the requirement of the construction such as connecting reinforcement and built-in fitting positioning precision in prefabricated units, the redundancy of site operation adjustment is less, all proposes very high requirement to construction machinery, equipment, manufacture processing etc.; And adopt the erection method that cast in situs section connects, need carry out reinforcement welding at the scene and concretely to build, site work amount is larger.
Summary of the invention
Because the above-mentioned defect of prior art, technical purpose of the present invention is to provide a kind of bridge prefabrication pier column and cushion cap socket type connecting structure and assembling method thereof, improves in prior art the defects such as positioning accuracy request of constructing is high, job site adjustment redundancy is little, high to construction equipment requirement, site operation workload is large.
For achieving the above object, the invention provides a kind of bridge prefabrication pier column and cushion cap socket type connecting structure, comprise column and cushion cap, described column comprises exposed junction and built-in end, the vertical direction of described cushion cap is arranged column and hole groove is installed, the cross sectional shape of the cross sectional shape of hole groove, size and described built-in end installed by described column, size matches to enable described column built-in end embed described column and installs in the groove of hole, and the gap between the inwall that hole groove installed by the outer wall of described column built-in end and described column is more than or equal to 2cm; The end face of described cushion cap is provided with mud jacking hole, and the bottom surface that hole groove installed by described column is provided with the first slurry outlet, is provided with mud jacking passage between described mud jacking hole and described first slurry outlet.
Further, the maximum outer profile size of described column built-in end equals the outer profile size of described column exposed junction.
Further, the maximum outer profile size of described column built-in end is less than the outer profile size of described column exposed junction, the end face of described cushion cap is also provided with the second slurry outlet, and the upper end that described second slurry outlet installs hole groove by pulp passage and described column is connected.
Further, the outer wall of described column built-in end arranges the column shear connector of some annular protrusions; The inwall of described column installation hole groove arranges the cushion cap shear connector of some annular protrusions.
The invention also discloses the assembling method of a kind of bridge prefabrication pier column and cushion cap, comprise the following steps:
A. prefabricated stand column, described column comprises column exposed junction and column built-in end;
B. prefabricated or cast-in-place cushion cap, the vertical direction of described cushion cap arranges column hole groove is installed, the cross sectional shape of the cross sectional shape of hole groove, size and described column built-in end installed by described column, size matches to enable described column built-in end embed described column and installs in the groove of hole, and the outer wall of described column built-in end and described column hole groove is installed inwall between gap be more than or equal to 2cm; The end face of described cushion cap is also provided with mud jacking hole, and the bottom surface that hole groove installed by described column is provided with the first slurry outlet, is provided with mud jacking passage between described mud jacking hole and described first slurry outlet;
C. at described column, hole groove bottom is installed and cushion block is set, the built-in end of described column is inserted described column and install in the groove of hole, between the bottom surface that described cushion block makes the bottom of described column built-in end and described column install hole groove, keep certain interval; Gap between the inwall that the position adjusting described column built-in end makes described column built-in end outer wall and described column install hole groove is more than or equal to 2cm;
D. by described mud jacking hole, described mud jacking passage and described first slurry outlet, high strength and no shrinting cementation material being fed into described column installs in the groove of hole, until described high strength and no shrinting cementation material is full of described column built-in end and described column install gap between the groove of hole, after described high strength and no shrinting cementation material solidifies, described column and described cushion cap are spliced into entirety.
Further, in described steps A, the sectional area of described column built-in end equals the sectional area of described column exposed junction, in described step D, described high strength and no shrinting cementation material to be injected in gap that described column built-in end and described column install between the groove of hole by described mud jacking hole, described mud jacking passage and described first slurry outlet until described high strength and no shrinting cementation material overflows the top that gap between the groove of hole installed by described column built-in end and described column.
Further, in described steps A, the sectional area of described column built-in end is less than the sectional area of described column exposed junction; In described step B, the end face of described cushion cap is also provided with the second slurry outlet, the upper end that described second slurry outlet installs hole groove by pulp passage and described column is connected; In described step D, described high strength and no shrinting cementation material is fed in gap that described column built-in end and described column install between the groove of hole until described high strength and no shrinting cementation material overflows described second slurry outlet by described mud jacking hole.
Further, in described steps A, the column shear connector of some annular protrusions is set at the outer wall of described column built-in end, in described step B, the cushion cap shear connector of some annular protrusions is set at the inwall of described column installation hole groove.
Further, toward each other, the gap between described column shear connector respect to one another and described cushion cap shear connector is more than or equal to 2cm for described column shear connector and described cushion cap shear connector.
Beneficial effect of the present invention:
The present invention is owing to have employed said structure and method, and without the need to a fairly large number of built-in fitting pre-buried in prefabricated stand column or cushion cap, site operation positioning accuracy request is low, the redundancy of adjustment is large, and not high to construction machinery, equipment, manufacture processing request; Without the need to on-the-spot binding reinforcing bars, welding and extensive concreting work, the quick facility of in-site installation, workload are little.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is A-A line sectional view in Fig. 1.
Fig. 3 is the volume rendering structural representation of cushion cap in the embodiment of the present invention 1.
Fig. 4 is the plan structure schematic diagram of the embodiment of the present invention 2.
Fig. 5 is A-A line sectional view in Fig. 4.
Fig. 6 is the volume rendering structural representation of cushion cap in the embodiment of the present invention 2.
In figure, 1 cushion cap; 11 cushion cap shear connectors; 12 mud jacking holes; 13 mud jacking passages; 14 first slurry outlets; Hole groove installed by 15 columns; 16 second slurry outlets; 17 pulp passages; 2 columns; 21 column shear connectors; 22 column exposed junctions; 23 column built-in ends; 3 high strength and no shrinting cementation material; 4 cushion blocks; 5 pile foundations; The top in groove gap, hole installed by 6 column built-in ends and column.
Detailed description of the invention
Embodiment 1
As shown in Fig. 1 Fig. 3, a specific embodiment of a kind of bridge prefabrication pier column of the present invention and cushion cap socket type connecting structure and assembling method thereof, comprises the following steps:
Prefabricated stand column 2, column 2 comprises exposed junction 22 and built-in end 23, built-in end 23 is for embedding in cushion cap 1, those skilled in the art should know, the cross-sectional sizes of column built-in end 23 and arrangement of reinforcement need meet bridge construction normally use with bridge geological process under keep firm every technical requirements, the maximum outer profile size of the present embodiment central post exposed junction 22 outer profile size and built-in end 23 is equal, and the outer wall of column built-in end 23 arranges the column shear connector 21 of some annular projections.
Prefabricated cushion cap 1, the vertical direction of cushion cap 1 arranges column hole groove 15 is installed, the cross sectional shape of hole groove 15 installed by column, the cross sectional shape of size and column built-in end 23, size match to make column built-in end 23 can embed column and install in hole groove 15, the inwall of column installation hole groove 15 arranged the cushion cap shear connector 11 of some annular projections; Meanwhile, those skilled in the art also should know, and the degree of depth that hole groove 15 installed by column need meet bridge construction and normally use build-in switching performance with prefabricated stand column under bridge geological process and cushion cap.Arrange mud jacking hole 12 at the end face of cushion cap 1, the bottom surface of installing hole groove 15 at column is provided with the first slurry outlet 14, between mud jacking hole 12 and the first slurry outlet 14, be provided with mud jacking passage 13; Mud jacking hole 12 can arrange one and also can arrange multiple, and correspondingly, mud jacking passage 13 also can arrange one or more, and mud jacking hole 12 and mud jacking passage 13 all arrange two in the present embodiment, mud jacking speed can be made to be in the milk sooner more even simultaneously; First slurry outlet 14 is arranged at the bottom surface that hole groove 15 installed by column, article one, mud jacking passage 13 is at least arranged first slurry outlet 14, also can arrange multiple, a mud jacking passage 13 is provided with 3 the first slurry outlets 14 in the present embodiment, similarly, multiple first slurry outlet 14 is set and can improves mud jacking speed, make grouting more even simultaneously.
It is worth mentioning that, cushion cap shear connector 11 and column shear connector 21 are set and can improve anchoring strength between column and cushion cap.Certainly, in some other embodiment, above-mentioned two kinds of shear connectors can all not arranged, and those skilled in the art should know, and the detail structures such as the anchorage depth now between column and cushion cap and cushion cap base plate thickness need corresponding increase to increase the anchoring strength between column and cushion cap.
Prefabricated cushion cap 1 is fixed on after on bridge pile foundation 5, the bottom surface of column installation hole groove 15 arranges cushion block 4, the built-in end 23 of column is inserted and is erected on cushion block 4 in column installation hole groove 15, the bottom surface that cushion block 4 makes the bottom of column built-in end 23 and column install hole groove 15 keeps certain interval, and the bottom surface avoiding column built-in end 23 directly to install hole groove 15 with column contacts thus the first slurry outlet 14 on hole groove 15 bottom surface installed by the closed column that is arranged at; The position of adjustment column built-in end makes column shear connector 21 and cushion cap shear connector 11 toward each other and gap between column shear connector 21 and cushion cap shear connector 11 is more than or equal to 2cm, the shear connector transmission force property be oppositely arranged is better than negative and positive mosaic, makes the anchoring strength between cushion cap and column higher.
Using grouting machine that high strength and no shrinting cementation material is fed into column by mud jacking hole 12, mud jacking passage 13 and the first slurry outlet 14 installs in hole groove 15, until the top 6 that high strength and no shrinting cementation material installs hole groove 15 gap from column built-in end 23 and column is overflowed, now, illustrate column built-in end 23 and column install gap between hole groove 15 completely be full of by high strength and no shrinting cementation material 3, be in the milk closely knit full.Treat that high strength and no shrinting cementation material 3 solidifies rear column 2 and is spliced into entirety with cushion cap 1.
Embodiment 2
As Figure 4-Figure 6, another specific embodiment of a kind of bridge prefabrication pier column of the present invention and cushion cap socket type connecting structure and assembling method thereof, comprises the following steps:
Prefabricated stand column 2, column 2 comprises exposed junction 22 and built-in end 23, built-in end 23 is for embedding in cushion cap 1, those skilled in the art should know, the cross-sectional sizes of column built-in end 23 and arrangement of reinforcement need meet structure and normally use and the every technical requirements under geological process, the outer profile size of the present embodiment central post exposed junction 22 is greater than the maximum outer profile size of built-in end 23, and the outer wall of column built-in end 23 arranges the column shear connector 21 of some annular projections.
Cast-in-place cushion cap 1, the vertical direction of cushion cap 1 arranges column hole groove 15 is installed, the cross sectional shape of hole groove 15 installed by column, the cross sectional shape of size and column built-in end 23, size match to make column built-in end 23 can embed column and install in hole groove 15, the inwall of column installation hole groove 15 arranged the cushion cap shear connector 11 of some annular projections; Meanwhile, those skilled in the art also should know, and the degree of depth that hole groove 15 installed by column need meet structure and normally use build-in switching performance with prefabricated stand column under geological process and cushion cap.Arrange mud jacking hole 12 at the end face of cushion cap 1, the bottom surface of installing hole groove 15 at column is provided with the first slurry outlet 14, between mud jacking hole 12 and the first slurry outlet 14, be provided with mud jacking passage 13; Mud jacking hole 12 can arrange one and also can arrange multiple, and correspondingly, mud jacking passage 13 also can arrange one or more, and mud jacking hole 12 and mud jacking passage 13 all arrange two in the present embodiment, mud jacking speed can be made to be in the milk sooner more even simultaneously; First slurry outlet 14 is arranged at the bottom surface that hole groove 15 installed by column, article one, mud jacking passage 13 is at least arranged first slurry outlet 14, also can arrange multiple, a mud jacking passage 13 is provided with 3 the first slurry outlets 14 in the present embodiment, similarly, multiple first slurry outlet 14 is set and can improves mud jacking speed, make grouting more even simultaneously.
Outer profile size due to the present embodiment central post exposed junction 22 is greater than the maximum outer profile size of built-in end 23, therefore column exposed junction 22 installs gap between hole groove 15 by covering column built-in end 22 and column completely, thus need on the end face of cushion cap 1, be provided with the second slurry outlet 16, the upper end that second slurry outlet 16 installs hole groove 15 by pulp passage 17 and column is connected, after column built-in end 22 and the column gap of installing between hole groove 15 is full of by grouting completely, cementation is overflowed from the second slurry outlet 16 by pulp passage 17; Second slurry outlet 16 can arrange one and also can arrange multiple, and correspondingly, pulp passage 17 also arranges one or more.The present embodiment is provided with two the second slurry outlets 16 and two pulp passages 17, can observe the grouting situation of different parts better, closely knit full to guarantee grouting.
Cushion cap 1 is built and is fixed on after on bridge pile foundation 5, the bottom surface of column installation hole groove 15 arranges cushion block 4, the built-in end 23 of column is inserted and is erected on cushion block 4 in column installation hole groove 15, the bottom surface that cushion block 4 makes the bottom of column built-in end 23 and column install hole groove 15 keeps certain interval, and the bottom surface avoiding column built-in end 23 directly to install hole groove 15 with column contacts thus the first slurry outlet 14 on hole groove 15 bottom surface installed by the closed column that is arranged at; The position of adjustment column built-in end makes column shear connector 21 and cushion cap shear connector 11 toward each other and gap between column shear connector 21 and cushion cap shear connector 11 is more than or equal to 2cm.
Using grouting machine that high strength and no shrinting cementation material is fed into column by mud jacking hole 12, mud jacking passage 13 and the first slurry outlet 14 installs in hole groove 15, until high strength and no shrinting cementation material overflows from the second slurry outlet 16, now, illustrate column built-in end 23 and column install gap between hole groove 15 completely be full of by high strength and no shrinting cementation material 3, be in the milk closely knit full.Treat that high strength and no shrinting cementation material solidifies rear column 2 and is spliced into entirety with cushion cap 1.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims (9)

1. a bridge prefabrication pier column and cushion cap socket type connecting structure, comprise column and cushion cap, it is characterized in that, described column comprises column exposed junction and column built-in end, the vertical direction of described cushion cap is arranged column and hole groove is installed, the cross sectional shape of the cross sectional shape of hole groove, size and described column built-in end installed by described column, size matches to enable described column built-in end embed described column and installs in the groove of hole, and the gap between the inwall that hole groove installed by the outer wall of described column built-in end and described column is more than or equal to 2cm; The end face of described cushion cap is provided with mud jacking hole, and the bottom surface that hole groove installed by described column is provided with the first slurry outlet, is provided with mud jacking passage between described mud jacking hole and described first slurry outlet.
2. want bridge prefabrication pier column described in 1 and cushion cap socket type connecting structure according to right, it is characterized in that, the maximum outer profile size of described column built-in end equals the outer profile size of described column exposed junction.
3. want bridge prefabrication pier column described in 1 and cushion cap socket type connecting structure according to right, it is characterized in that, the maximum outer profile size of described column built-in end is less than the outer profile size of described column exposed junction, the end face of described cushion cap is also provided with the second slurry outlet, and the upper end that described second slurry outlet installs hole groove by pulp passage and described column is connected.
4., according to the arbitrary described bridge prefabrication pier column of claim 1-3 and cushion cap socket type connecting structure, it is characterized in that, the outer wall of described column built-in end arranges the column shear connector of some annular protrusions; The inwall of described column installation hole groove arranges the cushion cap shear connector of some annular protrusions.
5. an assembling method for bridge prefabrication pier column and cushion cap, is characterized in that, comprises step:
A. prefabricated stand column, described column comprises exposed junction and built-in end;
B. prefabricated or cast-in-place cushion cap, the vertical direction of described cushion cap arranges column hole groove is installed, the cross sectional shape of the cross sectional shape of hole groove, size and described column built-in end installed by described column, size matches to enable described column built-in end embed described column and installs in the groove of hole, and the outer wall of described column built-in end and described column hole groove is installed inwall between gap be more than or equal to 2cm; The end face of described cushion cap is also provided with mud jacking hole, and the bottom surface that hole groove installed by described column is provided with the first slurry outlet, is provided with mud jacking passage between described mud jacking hole and described first slurry outlet;
C. at described column, hole groove bottom is installed and cushion block is set, the built-in end of described column is inserted described column and install in the groove of hole, between the bottom surface that described cushion block makes the bottom of described column built-in end and described column install hole groove, keep certain interval; Gap between the inwall that the position adjusting described column built-in end makes described column built-in end outer wall and described column install hole groove is more than or equal to 2cm;
D. by described mud jacking hole, described mud jacking passage and described first slurry outlet, high strength and no shrinting cementation material being fed into described column installs in the groove of hole, until described high strength and no shrinting cementation material is full of described column built-in end and described column install gap between the groove of hole, after described high strength and no shrinting cementation material solidifies, described column and described cushion cap are spliced into entirety.
6. the assembling method of bridge prefabrication pier column according to claim 5 and cushion cap, it is characterized in that, in described steps A, the maximum outer profile size of described column built-in end equals the outer profile size of described column exposed junction, in described step D, by described mud jacking hole, described high strength and no shrinting cementation material injects in gap that described column built-in end and described column install between the groove of hole by described mud jacking passage and described first slurry outlet until described high strength and no shrinting cementation material overflows the top that gap between the groove of hole installed by described column built-in end and described column.
7. the assembling method of bridge prefabrication pier column according to claim 5 and cushion cap, is characterized in that, in described steps A, the maximum outer profile size of described column built-in end is less than the outer profile size of described column exposed junction; In described step B, the end face of described cushion cap is also provided with the second slurry outlet, the upper end that described second slurry outlet installs hole groove by pulp passage and described column is connected; In described step D, described high strength and no shrinting cementation material is fed in gap that described column built-in end and described column install between the groove of hole until described high strength and no shrinting cementation material overflows described second slurry outlet by described mud jacking hole.
8., according to the assembling method of the arbitrary described bridge prefabrication pier column of claim 5-7 and cushion cap, it is characterized in that, in described steps A, the column shear connector of some annular protrusions is set at the outer wall of described column built-in end; In described step B, the cushion cap shear connector of some annular protrusions is set at the inwall of described column installation hole groove.
9. the assembling method of bridge prefabrication pier column according to claim 8 and cushion cap, it is characterized in that, toward each other, the gap between described column shear connector respect to one another and described cushion cap shear connector is more than or equal to 2cm for described column shear connector and described cushion cap shear connector.
CN201510967124.1A 2015-12-21 2015-12-21 Bridge prefabrication pier column and cushion cap socket type connecting structure and its assembling method CN105421222B (en)

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CN106192730A (en) * 2016-08-01 2016-12-07 上海应用技术学院 A kind of steel bushing precast splice type bridge pier of band WELDING STUDS
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CN106592419B (en) * 2016-12-26 2018-08-17 湖南大学 A kind of connecting structure and its dock construction method of precast pier and prefabricated cushion cap
CN107988895A (en) * 2017-11-29 2018-05-04 浙江跃龙园林建设有限公司 A kind of bridge and its construction method
CN107988895B (en) * 2017-11-29 2019-12-06 浙江跃龙园林建设有限公司 Bridge and construction method thereof
CN112030723A (en) * 2020-07-31 2020-12-04 中南大学 Bridge pier column and pier column joint structure thereof

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