CN105421221B - Precast Concrete Segmental Bridges concrete pier and its Joining Technology - Google Patents
Precast Concrete Segmental Bridges concrete pier and its Joining Technology Download PDFInfo
- Publication number
- CN105421221B CN105421221B CN201510738327.3A CN201510738327A CN105421221B CN 105421221 B CN105421221 B CN 105421221B CN 201510738327 A CN201510738327 A CN 201510738327A CN 105421221 B CN105421221 B CN 105421221B
- Authority
- CN
- China
- Prior art keywords
- rod iron
- screw thread
- thread rod
- screw shell
- pier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The present invention discloses a kind of Precast Concrete Segmental Bridges concrete pier and its Joining Technology, lower screw thread rod iron is embedded in the bottom of pier shaft section, upper screw thread rod iron is embedded in the top of pier shaft section, the bottom of screw shell is thread segment, the top of thread segment is connected with linkage section, the top of linkage section is connected with sleeve body, the lower screw thread rod iron of thread segment connection of screw shell, upper screw thread rod iron is out of top insertion screw shell, lower screw thread rod iron, upper screw thread rod iron, screw shell, are fixedly connected by socket cylindrical groove mouth in outside by cement mortar with cylindrical notch.By the way that grout sleeve is separated into two parts up and down, scene only need to be screwed into the latter half removable strip screw shell, you can directly lift pier shaft section, workload is few；Twice of a diameter of removable sleeve top diameter of cylindrical notch, removable sleeve top diameter are three times of pre-buried screw thread rod iron diameter, it is allowed to which construction error is big, and efficiency of construction is high, difficulty is small, easy to operation.
Description
Technical field
The present invention relates to a kind of sectional type bridge pier precasting process, more particularly to a kind of Precast Concrete Segmental Bridges concrete pier and
Its Joining Technology.
Background technology
In the last few years, bridge construction showed the characteristics of more bridge pier quantity, short time limit.This has promoted Precast Concrete Segmental Bridges bridge
The development of pier technology, due to not needing tensioned prestressing bar, work on the spot amount is small, so connecting upper-lower segment with grout sleeve
Technology has obtained extensive utilization in low land shake earthquake intensity region, but existing grout sleeve interconnection technique, and construction allowable error is small,
Construction precision requires high, right particularly when upper and lower two sections are needed by multiple grout sleeves while connect more reinforcing bars
Lifting required precision is high, and difficulty of construction is very big.Therefore, from difficulty of construction is reduced, efficiency of construction is improved, shortens the purpose of duration
Set out, develop one kind can increase construction allowable error, simple structure, safely and effectively new grouting branch sleeve have weight
The meaning wanted.
In view of the defects of connection is present between above-mentioned existing bridge pier, the present inventor is based on being engaged in such product design system
Abundant for many years practical experience and professional knowledge are made, and coordinates the utilization of scientific principle, is actively subject to research and innovation, to found one kind
New Precast Concrete Segmental Bridges concrete pier and its Joining Technology, make it have more practicality.By constantly research, design,
And after studying sample repeatedly and improving, the present invention having practical value is created finally.
The content of the invention
It is a primary object of the present invention to, overcome the defects of Joining Technology is present between existing pier shaft, and provide a kind of
New Precast Concrete Segmental Bridges concrete pier and its Joining Technology, reduce difficulty of construction, improve efficiency of construction, thus more suitable for
Practicality, and with the value in industry.
The object of the invention to solve the technical problems is realized using following technical scheme.Itd is proposed according to the present invention
A kind of Precast Concrete Segmental Bridges concrete pier, include lower screw thread rod iron, upper screw thread rod iron, screw shell and cylindrical groove
Mouthful,
The lower screw thread rod iron is embedded in the bottom of pier shaft section, and the upper screw thread rod iron is embedded in pier shaft section top
It is interior,
The bottom of the screw shell is thread segment, and the top of thread segment is connected with linkage section, the top connection of linkage section
There is sleeve body,
The lower screw thread rod iron of thread segment connection of the screw shell, upper screw thread rod iron is out of top insertion screw shell, outside
Portion is socketed the cylindrical notch, by cement mortar by lower screw thread rod iron, upper screw thread rod iron, screw shell and cylindrical notch
It is fixedly connected.
Further, foregoing Precast Concrete Segmental Bridges concrete pier, in the side of the cylindrical notch excircle
Bottom is provided with grout hole, and a upper lateral part of the cylindrical notch excircle is provided with slurry outlet.
Further, foregoing Precast Concrete Segmental Bridges concrete pier, in described screw shell and cylindrical notch
Surfaces externally and internally be alternately arranged groove and fin.
Further, foregoing Precast Concrete Segmental Bridges concrete pier, at the top of the sleeve body and circumference table
Face is provided with hole, and the upper screw thread rod iron is arranged in the hole at the top of sleeve body.
Precast Concrete Segmental Bridges concrete pier Joining Technology, including following operating procedure,
Step 1, prefabricated pier shaft section and is embedded in different pier shaft sections at the lower screw thread rod iron, upper screw thread rod iron respectively
In section；
Step 2, lower screw thread rod iron is connected with upper screw thread rod iron with cylindrical notch by screw shell,
Step 3, in the intraoral joints cement mortar of cylindrical groove, and then pier shaft section is mutually fixed.
Further, foregoing Precast Concrete Segmental Bridges concrete pier Joining Technology, lower screw-thread steel in the step 2
After rod is fixed with screw shell spiral, upper screw thread rod iron is inserted in screw shell, cylindrical groove is socketed outside screw shell
Mouthful.
Further, foregoing Precast Concrete Segmental Bridges concrete pier Joining Technology, mortar passes through in the step 3
The grout hole for being arranged on the cylindrical side lower part of notch excircle one pours.
Further, foregoing Precast Concrete Segmental Bridges concrete pier Joining Technology, mortar are entered by the grout hole
Enter in the space that the cylindrical notch is formed with screw shell, and the hole set by screw shell circumferential surface enters spiral shell
Line sleeve inner.
By above-mentioned technical proposal, under Precast Concrete Segmental Bridges concrete pier of the invention and its Joining Technology at least have
Row advantage：
(1) by the way that grout sleeve is separated into two parts up and down, the pre-buried top half steel circular cylindrical notch of factory, scene
The latter half removable strip screw shell only need to be screwed into, you can directly lift pier shaft section, workload is few, (2) cylindrical notch
Twice of a diameter of removable sleeve top diameter, removable sleeve top diameter is three times of pre-buried screw thread rod iron diameter,
Allow construction error big, efficiency of construction is high, difficulty is small, easy to operation.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, described in detail below with presently preferred embodiments of the present invention as after.
Brief description of the drawings
Fig. 1 is the sectional view of Precast Concrete Segmental Bridges concrete pier of the present invention；
Fig. 2 is screw shell structural representation；
Fig. 3 is the top view of cylindrical notch；
Fig. 4 is pier shaft section top axonometric drawing；
Fig. 5 is pier shaft section bottom axonometric drawing；
Mark meaning in figure：1. screw thread rod iron is descended, screw thread rod iron on 2., 3. screw shells, 4. cylindrical notches, 5. grouting
Hole, 6. slurry outlets, 7. faying faces, 8. grooves, 9. fins, 10. holes, 3-1. thread segments, 3-2. linkage sections, 3-3. sleeve sheets
Body.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, to according to this
The Precast Concrete Segmental Bridges concrete pier proposed and its Joining Technology its embodiment, feature and its effect are invented, in detail
Illustrate as after.
Embodiment 1
Precast Concrete Segmental Bridges concrete pier structural representation of the invention as shown in Fig. 1~5, includes lower screw-thread steel
Rod 1, upper screw thread rod iron 2, screw shell 3, thread segment 3-1, linkage section 3-2, sleeve body 3-3, cylindrical notch 4, grout hole
5th, slurry outlet 6, faying face 7, groove 8, fin 9 and hole 10.
Lower screw thread rod iron 1 is embedded in the bottom of pier shaft section, and upper screw thread rod iron 2 is embedded in the top of pier shaft section, mutually
Epoxy gluing dosage form is smeared between the pier shaft section of connection into faying face 7.The bottom of screw shell 3 is thread segment 3-1, spiral shell
Line section 3-1 top is connected with linkage section 3-2, and linkage section 3-2 top is connected with sleeve body 3-3, the screw thread of screw shell 3
The lower screw thread rod iron 1 of section 3-1 connections, upper screw thread rod iron 2 is out of top insertion screw shell 3, in sleeve body 3-3 top and circle
Perimeter surface is provided with hole 10, and upper screw thread rod iron 2 is arranged in the hole 10 at the top of sleeve body 3-3.Outside socket cylinder
Shape notch 4, lower screw thread rod iron 1, upper screw thread rod iron 2, screw shell 3 are fixedly connected with cylindrical notch 4 by cement mortar.
A side lower part of the cylindrical excircle of notch 4 is provided with grout hole 5, a upper lateral part of the cylindrical excircle of notch 4 is provided with
Slurry outlet 6, fluted 8 and fin 9 are alternately arranged in the outer surface of screw shell 3 and the inner surface of cylindrical notch 4.
Precast Concrete Segmental Bridges concrete pier Joining Technology of the present invention includes following operating procedure：
Step 1, prefabricated pier shaft section, wherein lower screw thread rod iron 1 and upper screw thread rod iron 2 are more with being embedded in difference respectively
Pier shaft section in；
Step 2, lower screw thread rod iron 1 is connected with upper screw thread rod iron 2 with cylindrical notch 4 by screw shell 3, will
Screw shell 3 is tightened with pre-buried lower screw thread rod iron 1 by thread segment 3-1 and is connected, all after the completion of socket, first in pier shaft section
One layer of epoxy gluing dosage form is uniformly smeared into faying face 7 in upper surface, then starts the new prefabricated pier shaft section of lifting, during lifting
Upper screw thread rod iron 2 is inserted to the sleeve body 3-3 of screw shell 3 top, screw shell 3 is inserted in cylindrical notch 4, all alignd
After insertion, during slowly decentralization pier shaft section, pier shaft section position is gradually adjusted, makes the essence of pier shaft section faying face 7 up and down
Quasi- fitting, determine faying face 7 precisely after fitting, handle up and down outside pier shaft section seam crossing because of the excessive epoxy gluing of pressure
Agent；
Step 3, after epoxy gluing agent solidification reaches intensity requirement, ungauged regions height is poured in cylindrical notch 4
Strength expansive cement mortar, mortar is poured by being arranged on the grout hole 5 of the cylindrical side lower part of 4 excircle of notch one, into cylinder
In the space that shape notch 4 is formed with screw shell 3, and the hole 10 set by the circumferential surface of screw shell 3 enters thread bush
Inside cylinder 3, and then pier shaft section is mutually fixed, the high-strength expansive cement mortar of injection pressure ungauged regions of grout hole 5, when the pulp of slurry outlet 6
When close slurry outlet 6 and grout hole 5, you can complete the installation of a pier shaft section.After mortar strength reaches design requirement, then
Carry out next section installation.
Wherein be alternately arranged groove 8 and fin 9 in cylindrical notch 4 and screw shell 3, for increase and concrete,
Snap-in force between mortar, hole 10 is provided with the side wall of screw shell 3, the mortar inside and outside screw shell 3 is preferably bonded.
The cylindrical height 30d≤X of notch 4≤35d, screw shell 3 and the lower screw-thread steel being embedded in prefabricated pier shaft section
Rod 1 tightens connecting length X1 >=5d, and screw shell 3 inserts length X2 >=25d of cylindrical notch 4, is embedded in prefabricated pier shaft section
Length X3 >=X2 of upper screw thread rod iron 2 insertion screw shell 3 in section, the upper diameter D1 ≈ 3d of screw shell 3, cylindrical notch
4 bore D2 ≈ 6d.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (5)
- A kind of 1. Precast Concrete Segmental Bridges concrete pier, it is characterised in that：Include lower screw thread rod iron（1）, upper screw thread rod iron （2）, screw shell（3）With cylindrical notch（4）,The lower screw thread rod iron（1）It is embedded in the bottom of pier shaft section, the upper screw thread rod iron（2）It is embedded in pier shaft section top It is interior,The screw shell（3）Bottom be thread segment（3-1）, thread segment（3-1）Top be connected with linkage section（3-2）, even Connect section（3-2）Top be connected with sleeve body（3-3）,The screw shell（3）Thread segment（3-1）The lower screw thread rod iron of connection（1）, upper screw thread rod iron（2）Screw thread is inserted from top Sleeve（3）Interior, outside is socketed the cylindrical notch（4）, by cement mortar by lower screw thread rod iron（1）, upper screw thread rod iron （2）, screw shell（3）With cylindrical notch（4）It is fixedly connected；In described screw shell（3）Outer surface and cylindrical notch（4）Surfaces externally and internally is alternately arranged fluted（8）With fin （9）；In the cylindrical notch（4）One side lower part of excircle is provided with grout hole（5）, the cylindrical notch（4）It is cylindrical One upper lateral part in week is provided with slurry outlet（6）；In the sleeve body（3-3）Top and circumferential surface be provided with hole（10）, the upper screw thread rod iron（2）Set In sleeve body（3-3）The hole at top（10）It is interior.
- 2. the Joining Technology of Precast Concrete Segmental Bridges concrete pier according to claim 1, it is characterised in that：Including as follows Operating procedure,Step 1, prefabricated pier shaft section, the lower screw thread rod iron（1）With upper screw thread rod iron（2）Different pier shafts is embedded in respectively In section；Step 2, pass through screw shell（3）With cylindrical notch（4）By lower screw thread rod iron（1）With upper screw thread rod iron（2）It is connected Connect,Step 3, in cylindrical notch（4）Interior joints cement mortar, and then pier shaft section is mutually fixed.
- 3. the Joining Technology of the Precast Concrete Segmental Bridges concrete pier according to claim 2, it is characterised in that：The step Lower screw thread rod iron in rapid two（1）With screw shell（3）After spiral is fixed, by upper screw thread rod iron（2）Insert screw shell（3）It is interior, In screw shell（3）Outside socket cylindrical groove mouth（4）.
- 4. the Joining Technology of Precast Concrete Segmental Bridges concrete pier according to claim 2, it is characterised in that：The step Mortar is by being arranged on cylindrical notch in rapid three（4）The grout hole of the side lower part of excircle one（5）Pour.
- 5. the Joining Technology of the Precast Concrete Segmental Bridges concrete pier according to claim 4, it is characterised in that：Mortar leads to Cross the grout hole（5）Into the cylindrical notch（4）With screw shell（3）In the space of formation, and pass through screw shell （3）The hole that circumferential surface is set（10）Into screw shell（3）It is internal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738327.3A CN105421221B (en) | 2015-11-03 | 2015-11-03 | Precast Concrete Segmental Bridges concrete pier and its Joining Technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738327.3A CN105421221B (en) | 2015-11-03 | 2015-11-03 | Precast Concrete Segmental Bridges concrete pier and its Joining Technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105421221A CN105421221A (en) | 2016-03-23 |
| CN105421221B true CN105421221B (en) | 2017-12-29 |
Family
ID=55499736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510738327.3A Active CN105421221B (en) | 2015-11-03 | 2015-11-03 | Precast Concrete Segmental Bridges concrete pier and its Joining Technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105421221B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970804A (en) * | 2016-07-14 | 2016-09-28 | 东南大学 | Structure and construction method of fan-shaped tenon joints of prefabricated assembly pier |
| CN106192729B (en) * | 2016-07-14 | 2017-10-20 | 东南大学 | Precast assembly bridge pier core shape joggle head structure and construction method |
| CN106592440B (en) * | 2016-12-30 | 2018-03-16 | 河南省交通规划设计研究院股份有限公司 | A kind of construction method of prefabricated subsection type bridge pier |
| CN107268424B (en) * | 2017-07-06 | 2019-05-03 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN108118611B (en) * | 2018-01-23 | 2023-10-17 | 安徽省交通控股集团有限公司 | Prefabricated mound, board cylindric shear force prop connection structure |
| CN108331259A (en) * | 2018-01-30 | 2018-07-27 | 沈阳建筑大学 | The wedge-shaped intermediate plate anchor head of major diameter high tensile reinforcement for reinforced concrete beam column node and application |
| CN108951404A (en) * | 2018-08-10 | 2018-12-07 | 苏交科集团股份有限公司 | Precast segment pier stud cross connecting structure and connection method |
| CN110453607A (en) * | 2019-08-22 | 2019-11-15 | 苏交科集团股份有限公司 | A kind of precast pier reinforcing bar connection type and its construction method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004270400A (en) * | 2003-03-12 | 2004-09-30 | Jfe Engineering Kk | Pedestal structure and precast segment |
| KR101328695B1 (en) * | 2006-12-19 | 2013-11-14 | 재단법인 포항산업과학연구원 | Assembling-type pier |
| JP4957418B2 (en) * | 2007-07-10 | 2012-06-20 | 株式会社大林組 | Structure and method for joining pier and footing |
| KR101029042B1 (en) * | 2008-07-21 | 2011-04-15 | 지에스건설 주식회사 | Precasr pier unit using sheath and pier construction method therewith |
| KR101143310B1 (en) * | 2009-07-21 | 2012-05-09 | 한국건설기술연구원 | Precast concrete segments for constructing bridge piers with elongated round holes surrounding reinforcing bars and the method using the same |
| CN203284728U (en) * | 2013-06-07 | 2013-11-13 | 上海市城市建设设计研究总院 | Prefabricated fast-assembly stand column and bearing platform structure |
| CN103321141B (en) * | 2013-07-18 | 2016-03-30 | 重庆交通大学 | A kind of Reinforced Concrete Circular Cylinder formula bridge pier and construction method thereof |
| CN104164834B (en) * | 2014-08-13 | 2016-04-06 | 北京工业大学 | Friction self-locking formula Precast Concrete Segmental Bridges bridge pier linkage |
| CN205100092U (en) * | 2015-11-03 | 2016-03-23 | 苏交科集团股份有限公司 | Prefabricated assembled concrete bridge mound |
-
2015
- 2015-11-03 CN CN201510738327.3A patent/CN105421221B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105421221A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105421221B (en) | Precast Concrete Segmental Bridges concrete pier and its Joining Technology | |
| CN103452246B (en) | The grouting deformed steel pipe box cylinder that the slurry anchor docking of a kind of reinforcing bar connects | |
| CN104975652B (en) | A kind of precast concrete docks attachment structure | |
| CN104612037B (en) | Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional energy-consuming steel bars | |
| CN105298134B (en) | Without independent grouting port reinforcing bar grouting branch sleeve and system and construction method | |
| CN202391019U (en) | End part thickened grouting connector of steel bar | |
| CN205935421U (en) | Novel full grout sleeve that can spacing reinforcing bar | |
| CN108374489A (en) | A kind of assembly concrete foot joint structure and its construction method | |
| CN205100092U (en) | Prefabricated assembled concrete bridge mound | |
| CN110306729A (en) | A kind of removable sleeved grouting connection design and construction method | |
| CN107288217A (en) | Prefabricated post attachment structure | |
| CN106088483A (en) | A kind of grout sleeve and using method | |
| CN213418238U (en) | Assembled reinforcing bar connecting device for building | |
| CN108222656A (en) | The construction method of Prefabricated enclosure wall | |
| CN107366355A (en) | Add the bean column node and its construction method of new beam on existing reinforced concrete frame column | |
| CN104695430B (en) | Foundation pile the most quickly rotates docking structure | |
| CN208965887U (en) | Grout sleeve and sleeve concrete-bar component | |
| CN208702007U (en) | By the prefabricated assembled concrete structure of slurry anchor overlap joint connection structure connection | |
| CN206873665U (en) | A kind of prefabricated shear wall and overlapping plate node | |
| CN205917992U (en) | Grout sleeve | |
| CN205712752U (en) | A kind of grout sleeve and prefabricated component | |
| CN205712761U (en) | A kind of grout sleeve and prefabricated component | |
| CN205712767U (en) | A kind of grout sleeve and prefabricated component | |
| CN106088482A (en) | A kind of fixed grout sleeve and using method | |
| CN207553444U (en) | A kind of reinforcing bar limit assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jiandong Inventor after: Liu Duo Inventor after: Gu Jiancheng Inventor after: Wu Zhishen Inventor after: Liu Zhao Inventor after: Li Yong Inventor before: Zhang Jiandong Inventor before: Liu Duo Inventor before: Gu Jiancheng Inventor before: Wu Zhishen Inventor before: Zhang Wenming Inventor before: Zhuo Weiding Inventor before: Wang Cuan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |