CN207210941U - A kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder - Google Patents
A kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder Download PDFInfo
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- CN207210941U CN207210941U CN201720930650.5U CN201720930650U CN207210941U CN 207210941 U CN207210941 U CN 207210941U CN 201720930650 U CN201720930650 U CN 201720930650U CN 207210941 U CN207210941 U CN 207210941U
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- pier
- bent cap
- single column
- steel construction
- steel
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Abstract
The utility model discloses a kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder, the girder of described Single column pier beam bridge is single box double room closed section, only post bridge pier of the Single column pier beam bridge is supported on girder center line, it is described to be solely fixedly installed steel construction bent cap at the top of post bridge pier, the steel construction bent cap includes the annular stirrup that internal diameter matches with only post bridge pier external diameter, the symmetrically I-steel crossbeam of horizontal two pieces of support girders for being welded on the annular stirrup top peripheral wall, obliquely it is symmetrically welded two pieces of support i shaped steels being fixed between annular stirrup and I-steel crossbeam bottom, the annular stirrup is fixedly connected by some equally distributed anchor bolts with only post bridge pier.The utility model precision is high, reliable in quality, and construction period need not suspend traffic, and installation procedure is simple, practical, reduces beam body torsional deflection in the case of unbalance loading, the possibility that overturning occurs for bridge substantially reduces.
Description
Technical field
It the utility model is related to a kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder.
Background technology
The bridge is overbridge, is three across one, connection end uses single pier double support, and middle pier uses single pier single support, bearing
It is pot rubber bearing, pier stud basis uses bored pile foundation, and bridge pier is arranged at cushion cap center, and only column diameter is
1500-1800mm, bridge deck width 9.5m, two-way traffic arrangement, beam body bottom width is 4.7m, and girder construction is single box double room.
So-called Single column pier beam bridge refers to the beam bridge that pier stud form is Single column pier, and this bridge ellbeam body structure type is mostly case
Beam, beam body can be linearly straight line or be curve, and curve is in the majority.Single support position is on beam body center line.
Due to the presence of single support so that occur eccentricity effect during load action, so as to cause beam body to twist deformation,
Beam body overturning is even resulted in, is particularly acute in automobile overload.To improve bridge resistance to capsizing, first by beam body top
Rise, install bent cap additional on pier stud and respectively set up a bearing in former bearing both sides.Setting up the end reaction of bearing offer can disappear
Except the beam body caused by unbalance loading is reversed.
Utility model content
Problem to be solved in the utility model is to provide a kind of new steel construction bent cap, for supporting Single column pier beam
Body, the end reaction that the bent cap is provided can eliminate beam body torsional deflection caused by unbalance loading, and the utility model is complete through in-site installation
Into, and form entirety with original pier stud.
The purpose of this utility model is achieved through the following technical solutions：
A kind of steel construction bent cap being installed under Single column pier beam bridge girder at the top of pier stud, the master of described Single column pier beam bridge
Beam is single box double room closed section, and only post bridge pier of described Single column pier beam bridge is supported on girder center line, only post
Steel construction bent cap is fixedly installed at the top of bridge pier, described steel construction bent cap includes what internal diameter matched with only post bridge pier external diameter
Annular stirrup, symmetrically the I-steel crossbeam of horizontal two pieces of support girders for being welded on the annular stirrup top peripheral wall,
Obliquely it is symmetrically welded two pieces of support i shaped steels being fixed between annular stirrup and I-steel crossbeam bottom, described ring
Shape stirrup is fixedly connected by some equally distributed anchor bolts with only post bridge pier, the annular stirrup tip position and only post
Pier coping portion flushes.
Further, described annular stirrup is made up of two pieces of semicircular rings, and welding formation is overall after installation is fixed.
Further, it is symmetrically arranged with elastic support between described I-steel crossbeam and the contact surface of girder.
Further, described elastic support uses GYZ laminated rubber bearings.
Further, some spiral shells for being used to install anchor bolt are evenly arranged with described annular stirrup and only post bridge pier
Keyhole.
Further, web of the described I-shaped crossbeam away from only post bridge pier certain distance sets crossbeam ribbed stiffener, described
Crossbeam ribbed stiffener uses fillet weld seam with web.
Further, it is symmetrically arranged with the periphery wall of the annular stirrup I-shaped with restriction site support for supporting
The fixing steel plate of steel.
Further, also it is welded with junction steel plate between the periphery wall of the annular stirrup and support i shaped steel.
Further, the concrete surface that post bridge pier is in contact with annular stirrup described solely carries out dabbing processing, and dabbing is deep
Spend for 2cm -3cm.
Further, mixed in the gap between described annular stirrup and only post bridge pier filled with C30 non-shrinking steel fibers
Solidifying soil.
Compared with prior art, the utility model has the advantages that：Simple in construction, making easy to process, its main member is equal
For steel construction, can all be made in workshop, therefore quality is guaranteed, without carrying out numerous and diverse processing to pier stud.Can quickly it pacify at the scene
Install into and come into operation, it is simply workable without interruption of bridge deck traffic, installation procedure in installation process.In steel-structured lids
Under the support for the bearing set up on beam, beam body torsional deflection in the case of unbalance loading reduces, and the possibility of overturning occurs for bridge
Property substantially reduces.
Brief description of the drawings
Fig. 1 is the front schematic view of the utility model Central Plains bridge pier and bridge main beam.
Fig. 2 is the side schematic view of the utility model Central Plains bridge pier and bridge main beam.
Fig. 3 is the front schematic view of the utility model embodiment.
Fig. 4 is the side schematic view of the utility model embodiment.
Fig. 5 is the schematic top plan view of the utility model embodiment.
Reference.
1- girders；The only post bridge piers of 2-；3- steel construction bent caps；4- annular stirrups；5- supports i shaped steel；6- I-steels are horizontal
Beam；7- crossbeam ribbed stiffeners；8- junction steel plates；9- anchor bolts；10- fixing steel plates；11- elastic supports；12-C30 non-shrinking steels
Pricker concrete.
Embodiment
The goal of the invention of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, embodiment is not
It can repeat one by one herein, but therefore embodiments of the present invention are not defined in following examples.
Referring to shown in accompanying drawing 1-5, a kind of steel construction bent cap being installed under Single column pier beam bridge girder at the top of pier stud, institute
The girder 1 for the Single column pier beam bridge stated is single box double room closed section, and only post bridge pier 2 of described Single column pier beam bridge is supported in master
On the center line of beam 1, highly not higher than 15m, it is easy to set up scaffold, the top of the solely post bridge pier 2 is fixedly installed steel construction
Bent cap 3, described steel construction bent cap 3 include annular stirrup 4, the symmetrically horizontal welding that internal diameter matches with only external diameter of post bridge pier 2
It is connected on the I-steel crossbeam 6 of two pieces of support girders 1 of the top peripheral wall of annular stirrup 4, is obliquely symmetrically welded fixation
Two pieces of support i shaped steels 5 between annular stirrup 4 and the bottom of I-steel crossbeam 6, described annular stirrup 4 is by some
Equally distributed anchor bolt 9 is fixedly connected with only post bridge pier 2, and the annular tip position of stirrup 4 and only top of post bridge pier 2 are neat
It is flat.
The internal diameter of annular stirrup 4 is the diameter of bridge pier：1800mm, thickness 15mm, described annular stirrup 4 is by two pieces
Semicircular ring forms, and welding formation is overall after installation is fixed.During the annular stirrup processing, processed and formed for 15mm steel plates by thickness
One semi-circular stirrup 4, annular stirrup 4 should according to steel bar arrangement figure set bolt hole, a diameter of 27mm, then respectively with it is I-shaped
Gooseneck 6 and the support welding of i shaped steel 5 form entirety, and fixing steel plate 10 should be first welded in welding（Fixing steel plate Ying Yuhuan
Shape stirrup is brought into close contact）, then it is that I-steel crossbeam 6 and support i shaped steel 5 weld successively, should be first pre-splicing before welding,
Check whether a splicing spot size is correct.
Elastic support, described elasticity branch are symmetrically arranged between described I-steel crossbeam 6 and the contact surface of girder 1
Seat 11 uses GYZ laminated rubber bearings.
28 bolts hole for being used to install anchor bolt 9 are evenly arranged with described annular stirrup 4 and only post bridge pier 2,
And the bolt hole on annular stirrup 4 is more than the diameter 3mm of anchor bolt 9, the bolt positioning hole on only post bridge pier 2 is more than anchor bolt
9 diameter 5mm；Web at 1350mm of the described I-shaped crossbeam 6 away from only post bridge pier 2, which is set, amounts to eight pieces of crossbeam ribbed stiffeners 7,
The crossbeam ribbed stiffener 7 uses fillet weld seam with web.It is symmetrically arranged with the periphery wall of the annular stirrup 4 for supporting
With the fixing steel plate 10 of restriction site support i shaped steel 5.Between the periphery wall and support i shaped steel 5 of the annular stirrup 4
Also it is welded with junction steel plate 8.
Before installing steel construction bent cap, by 1650mm dabbings below only top surface of post bridge pier 2, dabbing depth is 3cm.Afterwards
Pier stud is cleared up, is punched according to the spiro keyhole position on annular stirrup 4 on only post bridge pier 2, steel construction bent cap 3 is finally installed and carried out
Pullout tests.
After steel construction bent cap 3 is installed on only specified location of post bridge pier 2, welds annular stirrup 4 and form it into entirety, it is described
C30 non-shrinking steels fiber concrete 12 is filled with gap between annular stirrup 4 and solely post bridge pier 2, when concrete reaches it
After 85% intensity, GYZ laminated rubber bearings are set, and GYZ laminated rubber bearings size is 500mm × 500mm × 80mm.
In the present embodiment, the shaped steel classifications of two pieces of support i shaped steels 5 are HW, model 400 × 400（mm×mm）, can
Directly cut to obtain by shaped steel；The size of two pieces of I-steel crossbeams 6 is：Top flange width is 800mm, and lower flange width is
707mm, depth of section 500mm, girder steel length are 1100mm, steel plate thickness 25mm, and it is right that required size steel plate is respectively cut
Obtained after being welded afterwards using the welding manner of angle welding；The length of eight pieces of crossbeam ribbed stiffeners 7 is 450 × 490mm, and thickness is
25mm；The size of junction steel plate 8 is 500mm × 500 mm × 700mm, thickness 25mm；Annular stirrup 4 and only post bridge pier 2
The model M24 of the anchor bolt 9 of connection, quantity are 28, nominal diameter 24mm；Each one's duty of steel construction girder steel is using welding
Connection, seam weld quality is two level.
The present embodiment is a kind of new installable steel construction bent cap developed meticulously by the present inventor, steel construction bent cap work
Factory makes, and quality is easy to ensure, simply workable without interruption of bridge deck traffic, installation procedure in installation process.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
All any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (10)
1. a kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder, the girder of described Single column pier beam bridge
(1) it is single box double room closed section, only post bridge pier (2) of described Single column pier beam bridge is supported on girder (1) center line, its
It is characterised by：Described to be solely fixedly installed steel construction bent cap (3) at the top of post bridge pier (2), described steel construction bent cap (3) includes
Annular stirrup (4) that internal diameter and only post bridge pier (2) external diameter match, symmetrically level is welded at the top of the annular stirrup (4)
The I-steel crossbeam (6) of two pieces of support girders (1) of periphery wall, obliquely it is symmetrically welded and is fixed on annular stirrup (4) and work
Two pieces of support i shaped steels (5) between font gooseneck (6) bottom, described annular stirrup (4) are uniformly distributed by some
Anchor bolt (9) be fixedly connected with only post bridge pier (2), it is neat at the top of annular stirrup (4) tip position and only post bridge pier (2)
It is flat.
2. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Described annular stirrup (4) is made up of two pieces of semicircular rings, and welding formation is overall after installation is fixed.
3. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Elastic support is symmetrically arranged between described I-steel crossbeam (6) and the contact surface of girder (1).
4. the steel construction bent cap according to claim 3 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Described elastic support (11) uses GYZ laminated rubber bearings.
5. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Some bolts hole for being used to install anchor bolt (9) are evenly arranged with described annular stirrup (4) and only post bridge pier (2).
6. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Web of the described I-shaped crossbeam (6) away from only post bridge pier (2) certain distance sets crossbeam ribbed stiffener (7), and the crossbeam adds
Strength rib (7) uses fillet weld seam with web.
7. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：It is symmetrically arranged with the periphery wall of the annular stirrup (4) for supporting the positioning with restriction site support i shaped steel (5)
Steel plate (10).
8. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：Junction steel plate (8) is also welded between the periphery wall and support i shaped steel (5) of the annular stirrup (4).
9. the steel construction bent cap according to claim 1 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：The solely concrete surface that is in contact with annular stirrup (4) of post bridge pier (2) carries out dabbing processing, dabbing depth for 2cm-
3cm。
10. the steel construction bent cap according to claim 9 at the top of pier stud under Single column pier beam bridge girder, its feature exists
In：C30 non-shrinking steels fiber concrete (12) is filled with gap between described annular stirrup (4) and only post bridge pier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930650.5U CN207210941U (en) | 2017-07-28 | 2017-07-28 | A kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930650.5U CN207210941U (en) | 2017-07-28 | 2017-07-28 | A kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207210941U true CN207210941U (en) | 2018-04-10 |
Family
ID=61814608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720930650.5U Expired - Fee Related CN207210941U (en) | 2017-07-28 | 2017-07-28 | A kind of steel construction bent cap at the top of pier stud under Single column pier beam bridge girder |
Country Status (1)
| Country | Link |
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| CN (1) | CN207210941U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677758A (en) * | 2018-05-10 | 2018-10-19 | 杭州市市政工程集团有限公司 | The antidumping anti-fall girder apparatus and its construction method that existing bridge is added |
| CN110835889A (en) * | 2019-12-20 | 2020-02-25 | 招商局重庆交通科研设计院有限公司 | Single-column pier type viaduct reinforcing device |
| CN111486432A (en) * | 2020-04-17 | 2020-08-04 | 哈尔滨锅炉厂有限责任公司 | Beam reinforcing structure penetrated by horizontal box beam |
| CN111764291A (en) * | 2020-07-09 | 2020-10-13 | 中铁六局集团天津铁路建设有限公司 | Construction method of separated railway bridge steel-concrete transition section structure |
| CN112921796A (en) * | 2021-04-02 | 2021-06-08 | 樊涛 | Reinforced steel structure bridge prefabricated assembly |
-
2017
- 2017-07-28 CN CN201720930650.5U patent/CN207210941U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677758A (en) * | 2018-05-10 | 2018-10-19 | 杭州市市政工程集团有限公司 | The antidumping anti-fall girder apparatus and its construction method that existing bridge is added |
| CN110835889A (en) * | 2019-12-20 | 2020-02-25 | 招商局重庆交通科研设计院有限公司 | Single-column pier type viaduct reinforcing device |
| CN110835889B (en) * | 2019-12-20 | 2021-04-20 | 招商局重庆交通科研设计院有限公司 | Single-column pier type viaduct reinforcing device |
| CN111486432A (en) * | 2020-04-17 | 2020-08-04 | 哈尔滨锅炉厂有限责任公司 | Beam reinforcing structure penetrated by horizontal box beam |
| CN111764291A (en) * | 2020-07-09 | 2020-10-13 | 中铁六局集团天津铁路建设有限公司 | Construction method of separated railway bridge steel-concrete transition section structure |
| CN112921796A (en) * | 2021-04-02 | 2021-06-08 | 樊涛 | Reinforced steel structure bridge prefabricated assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20200728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |