CN109356036A - Middle pier pier-side bracket and its construction method - Google Patents
Middle pier pier-side bracket and its construction method Download PDFInfo
- Publication number
- CN109356036A CN109356036A CN201811423162.0A CN201811423162A CN109356036A CN 109356036 A CN109356036 A CN 109356036A CN 201811423162 A CN201811423162 A CN 201811423162A CN 109356036 A CN109356036 A CN 109356036A
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- China
- Prior art keywords
- pier
- pipe support
- side bracket
- pedestal
- pipeline section
- 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.)
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Classifications
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- 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
-
- 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
Abstract
The present invention relates to bridge construction technical fields, more particularly, to a kind of middle pier pier-side bracket and its construction method.Pier pier-side bracket includes side stand in this, and side stand includes two pack supports, and pack support includes box beam and multiple submounts, and submounts include pedestal, pipe support and attached wall；The bottom end of pipe support is connected with pedestal, and pedestal with the cushion cap of middle pier for being connected；One end of attached wall is connected with pipe support, and pier shaft side of the other end of attached wall for middle pier is connected；Box beam is connected with the top of the pipe support of pack support.Construction method of pier pier-side bracket includes: to be fixedly connected with the pedestal of submounts with the cushion cap of middle pier in this；Pipe support is fixedly connected with pedestal；Pipe support is connected with the pier shaft side of middle pier by attached wall；Box beam is fixed on to the top of pipe support.The present invention is supported by the avris of the bottom of middle pier pier-side bracket centering pier steel truss, to ensure the stability when constructing on middle pier steel truss girder.
Description
Technical field
The present invention relates to bridge construction technical fields, more particularly, to a kind of middle pier pier-side bracket and its construction method.
Background technique
As domestic high-grade highway and the paces of railway construction are constantly accelerated, for bridge construction mobile formwork and
The application of Bridge Erector is also more and more extensive.Currently, in Jiang Zhongdun steel truss girder is installed on behind pier top portion, it is also necessary in middle pier steel truss
Other constructions are carried out on beam, since middle pier steel truss girder is without other suspension devices, in the construction process, are easy in influence
The stability of pier steel truss girder itself.
Summary of the invention
The purpose of the present invention is to provide a kind of middle pier pier-side bracket and its construction methods, to solve to exist in the prior art
Since middle pier steel truss girder is without other suspension devices, in the construction process, be easy to influence in pier steel truss girder itself
The technical issues of stability.
The present invention provides a kind of middle pier pier-side brackets comprising side stand, the side stand include two pack supports, institute
Stating pack support includes box beam and multiple submounts, and the submounts include pedestal, pipe support and attached wall；The bottom end of the pipe support and institute
It states pedestal to be connected, the pedestal with the cushion cap of middle pier for being connected；One end of the attached wall is connected with the pipe support, institute
Pier shaft side of the other end of attached wall for middle pier is stated to be connected；The top phase of the box beam and the pipe support of the pack support
Connection.
In any of the above-described technical solution, further, the pipe support include be sequentially connected from the bottom to top bottom pipeline section, in
Portion's pipeline section and main leg, wherein the bottom pipeline section is connected with the pedestal, and the main leg is connected with the box beam,
The central tube section is between the bottom pipeline section and the main leg.
In any of the above-described technical solution, further, the middle part pipeline section is connected with the attached wall.
In any of the above-described technical solution, further, the main leg is connected with the attached wall.
In any of the above-described technical solution, further, the middle part pipeline section, which is also connected with, draws cable rope.
In any of the above-described technical solution, further, the main leg, which is also connected with, draws cable rope.
In any of the above-described technical solution, further, the quantity of the side stand is two.
In any of the above-described technical solution, further, the quantity of the submounts in the pack support is two.
In any of the above-described technical solution, further, by multiple between multiple pipe supports in the side stand
Transverse connection is connected.
In any of the above-described technical solution, further, it is connected between the adjacent transverse connection by diagonal web member
It connects.
The present invention also provides the construction method of the middle pier pier-side bracket described in one kind, which includes: by sub- branch
The pedestal of frame is fixedly connected with the cushion cap of middle pier；Pipe support is fixedly connected with pedestal；By attached wall by the pier shaft of pipe support and middle pier
Side is connected；Box beam is fixed on to the top of pipe support.
Compared with prior art, the invention has the benefit that
Middle pier pier-side bracket provided by the invention comprising side stand, the side stand include two pack supports, described group
Bracket includes box beam and multiple submounts, and the submounts include pedestal, pipe support and attached wall；The bottom end of the pipe support and the bottom
Seat is connected, and the pedestal with the cushion cap of middle pier for being connected；One end of the attached wall is connected with the pipe support, described attached
Pier shaft side of the other end of wall for middle pier is connected；The box beam is connected with the top of the pipe support of the pack support
It connects.It is supported by the avris of the bottom of middle pier pier-side bracket centering pier steel truss, to ensure to construct on middle pier steel truss girder
When stability；By submounts for support force, and the gentle support of the bottom of centering pier steel truss girder is realized by box beam；
Can guarantee the stability of pipe support by attached wall, thus guarantee in pier pier-side bracket entirety stability.
The present invention also provides the middle pier pier-side bracket construction method, which includes: by submounts
Pedestal is fixedly connected with the cushion cap of middle pier；Pipe support is fixedly connected with pedestal；By attached wall by the pier shaft side of pipe support and middle pier
It is connected；Box beam is fixed on to the top of pipe support.Based on above-mentioned analysis it is found that in this pier pier-side bracket construction method, pass through
The avris of the bottom of middle pier pier-side bracket centering pier steel truss is supported, to ensure the stabilization when constructing on middle pier steel truss girder
Property.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the middle pier pier-side bracket that the embodiment of the present invention one provides；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A；
Fig. 3 is the partial enlargement structural representation in Fig. 1 at B；
Fig. 4 is the C direction view of Fig. 1；
Fig. 5 is the partial enlargement diagram in Fig. 4 at D.
Icon:
Pier in 100-；101- side stand；102- pack support；103- submounts；104- pedestal；The bottom 105- pipeline section；106-
Middle part pipeline section；107- main leg；108- attached wall；109- cushion cap；110- steel strand wires；The pre-buried anchoring piece of 112-；113- steel cofferdam；
114- box beam；115- transverse connection；116- diagonal web member；Pier steel truss girder in 200-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.
The component for the embodiment of the present invention for usually describing and showing in attached drawing here can be with a variety of different configurations
To arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Referring to figs. 1 to 5, the embodiment of the invention provides a kind of middle pier pier-side brackets comprising side stand 101,
Side stand includes two pack supports 102, and pack support includes box beam 114 and multiple submounts 103, and submounts include pedestal 104, pipe
Frame and attached wall 108；The bottom end of pipe support is connected with pedestal, and pedestal with the cushion cap 109 of middle pier 100 for being connected；The one of attached wall
End is connected with pipe support, and pier shaft side of the other end of attached wall for middle pier is connected；The top of the pipe support of box beam and pack support
It is connected.Submounts are made of steel substantially.
Specifically, the quantity of side stand is two.The quantity of submounts in each pack support is two.By a side
Direction, that is, bridge trend of the bracket to another side stand；
Two side stands are symmetrically distributed in the two sides of middle pier using the axis of middle pier as symmetry axis；Two of each side stand
Pack support is symmetrically divided with bridge center line.Pedestal is fixedly connected with the anchoring member reserved on the cushion cap of middle pier.Pipe support and cushion cap
Between there is inclination angle, and the angle between the length direction of pipe support and the table top of cushion cap is less than 90 degree.Each group of each side stand
In two submounts in bracket, one of submounts are located at upstream side, another submounts is located at downstream side；It is each collateral
Two pack supports in frame, one of pack support are located at upstream side, another pack support is located at downstream side.
The middle pier pier-side bracket that the embodiment provides, by the avris of the bottom of middle pier pier-side bracket centering pier steel truss into
Row support, to ensure the stability when constructing on middle pier steel truss girder 200；By submounts for support force, and pass through box beam
To realize the gentle support of the bottom of centering pier steel truss girder；It can guarantee the stability of pipe support by attached wall, thus pier in guaranteeing
The stability of pier-side bracket entirety.
In the optional scheme of the embodiment, pipe support includes being sequentially connected bottom pipeline section 105, middle part pipeline section 106 from the bottom to top
And main leg 107, wherein bottom pipeline section is connected with pedestal, and main leg is connected with box beam, and central tube section is located at bottom pipeline section
Between main leg.Lower tube section is located at the lower section of middle part pipeline section, and central tube section is located at the lower section of main leg.Pass through setting three
Different pipeline section, in order to install.Pedestal is structure as a whole with bottom pipeline section.
In the optional scheme of the embodiment, middle part pipeline section is connected with attached wall, and one end of attached wall and middle part pipeline section weld, attached wall
The other end and middle pier pier shaft side in built-in fitting weld.
In the optional scheme of the embodiment, main leg is connected with attached wall.One end of attached wall and the top of main leg are welded, attached
Built-in fitting in the pier shaft side of the other end of wall and middle pier welds.
In the optional scheme of the embodiment, middle part pipeline section, which is also connected with, draws cable rope, by drawing cable rope, in order to adjust
The tilt angle of middle part pipeline section.The one end for drawing cable rope is connected with middle part pipeline section, draws the other end of cable rope and the pier of middle pier
It is connected at the top of body.
In the optional scheme of the embodiment, main leg, which is also connected with, draws cable rope.By drawing cable rope, in order to adjust master
The tilt angle of pipeline section.The one end for drawing cable rope is connected with main leg, draws at the top of the other end of cable rope and the pier shaft of middle pier
It is connected.
In the optional scheme of the embodiment, it is connected between multiple pipe supports in side stand by multiple transverse connections；
Transverse connection can be pipe structure, multiple about 115 parallel interval of transverse connection distributions.
In the optional scheme of the embodiment, it is connected between adjacent a transverse connection by diagonal web member 116.Each group of branch
Two submounts in frame are respectively with the box beam Welding of steel material, and box beam is located at the top of main leg, and box beam is horizontally disposed.It is horizontal
It can be steel pipe to connector.
In the optional scheme of the embodiment, pass through steel between two opposite main legs in symmetrically arranged two side stands
110 tensioning of twisted wire.Pass through steel strand tension between two opposite pedestals in symmetrically arranged two side stands.The top of main leg
Concrete is poured in the lumen at end, to guarantee the robustness on the top of main leg.
The inventive embodiments, additionally provide the construction method of middle pier pier-side bracket, i.e., in pier pier-side bracket installation method,
The construction method the following steps are included:
Step S1: the pedestal of submounts is fixedly connected with the cushion cap of middle pier；Pipe support is fixedly connected with pedestal；By attached
Pipe support is connected by wall with the pier shaft side of middle pier.
Further, include three sub-steps in step S1:
Step S101: being operated using 50t truck crane, and loop wheel machine erect-position is incited somebody to action on the direction across bridge branch trestle of steel cofferdam 113
112 Corresponding matching of pre-buried anchoring piece at the top of the cushion cap of pedestal and middle pier installs, and adjusts position and the bottom pipeline section of pedestal
After tilt angle, pedestal and pre-buried anchoring piece are welded and fixed.
Step S102: middle part pipeline section prefabricated in advance is lifted to installation site, by the flange of one end of middle part pipeline section
Blending bolt is fixed after disk is docked with the ring flange of bottom pipeline section；There is inclination angle due to 10 meters of central tube segment length and after installing, is
Reduce the internal stress at the ring flange of docking, can be arranged on the top of middle part pipeline section and draw cable rope, draw cable rope and draw into
It is fixed temporarily at the pier top of pier；Attached wall is installed again, wherein the welding pair of the built-in fitting of one end of attached wall and the pier shaft side of middle pier
It connects, the other end and the welding of middle part pipeline section, before the other end of attached wall is connect with middle part pipeline section, adjusts middle part first with cable rope is drawn
The inclination angle of pipeline section is welded to connect to design angle, then by the other end of attached wall and middle part pipeline section；After installing attached wall, then install
Transverse connection at the middle part pipeline section of upstream and downstream side.
Step S103 lifts main leg prefabricated in advance to installation site, and the middle part pipeline section being installed
Blending bolt is fixed after the ring flange docking of the other end；There is inclination angle due to 10 meters of segment length of supervisor and after installing, in order to reduce docking
Traction cable rope can be arranged on main leg top in the internal stress of flange, draw cable rope and draw to temporarily solid at the pier top of middle pier
It is fixed；Then attached wall is installed again, attached wall one end is connect with main leg, and the other end is connected with the built-in fitting of the pier shaft side of middle pier,
Before the other end of attached wall is connect with middle part pipeline section, first with drawing the inclination angle of cable rope adjustment main leg to design angle, then will be attached
Wall and the built-in fitting of pier shaft side are welded to connect；After installing attached wall, then the transverse direction installed at the main leg in downstream side connects
Fitting.
Step S2: box beam 114 is fixed on to the top of pipe support.
In step S2, further, box beam is installed on the column cap top of main leg, is adjusted behind pile equipment position simultaneously
It fixes, and temporary cushion block, backing plate is placed in the top of box beam, the integral thickness of cushion block is according to the design in construction design drawing
Pre- lift value that absolute altitude and monitoring side provide determines；After pier-side bracket integrated member is all installed, i.e., progress pedestal and
Steel strand tension at the column cap of main leg, pre- drawing steel stranded wire are made of the steel strand wires that 17 nominal diameters are 15.24mm, prestretching
Power is 150t tensioning.It should be noted that the steel strand wires in main leg draw completion, coagulation need to be poured in the column cap of main leg
Soil, the tension steel strand again after concrete reaches design strength.
It needs to pay attention to when pier pier-side bracket: (1), before the construction of pier-side bracket steel pipe being calculated simultaneously according to design drawing in an installation
It determines pile center position, after the completion of the plan-position of penstock installation and Inclination maneuver, starts flanged joint.When connecting two flanges,
The error of the straightness and flange bolt hole that guarantee the center line of two pipeline sections should within the allowable range of values, by itself weight of pipeline section
Amount, compresses two segment ring flange uniformly, thereby guarantees that and be attached by same bolt stress to flange.(2), method on pipeline section
Blue valve snail keyhole position should be corresponding with the pipeline section upper bolt hole position matched consistent, the spiral shell of the ring flange at same root pipeline section both ends
Keyhole position should also correspond to unanimously.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that reality of the invention
Applying example can practice without these specific details.In some instances, well known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this specification.In addition, it will be appreciated by those of skill in the art that although this institute
The some embodiments stated include certain features included in other embodiments rather than other feature, but different embodiments
The combination of feature means to be within the scope of the present invention and formed different embodiments.For example, being wanted in following right
Ask in book, embodiment claimed it is one of any can in any combination mode come using.
Claims (10)
1. a kind of middle pier pier-side bracket, which is characterized in that including side stand, the side stand include two pack supports, described group
Bracket includes box beam and multiple submounts, and the submounts include pedestal, pipe support and attached wall；The bottom end of the pipe support and the bottom
Seat is connected, and the pedestal with the cushion cap of middle pier for being connected；One end of the attached wall is connected with the pipe support, described attached
Pier shaft side of the other end of wall for middle pier is connected；The box beam is connected with the top of the pipe support of the pack support
It connects.
2. middle pier pier-side bracket according to claim 1, which is characterized in that the pipe support includes being sequentially connected from the bottom to top
Bottom pipeline section, middle part pipeline section and main leg, wherein the bottom pipeline section is connected with the pedestal, the main leg with it is described
Box beam is connected, and the central tube section is between the bottom pipeline section and the main leg.
3. middle pier pier-side bracket according to claim 2, which is characterized in that the middle part pipeline section is connected with the attached wall.
4. middle pier pier-side bracket according to claim 2, which is characterized in that the main leg is connected with the attached wall.
5. middle pier pier-side bracket according to claim 3, which is characterized in that the middle part pipeline section, which is also connected with to draw, pulls wind
Rope.
6. middle pier pier-side bracket according to claim 4, which is characterized in that the main leg, which is also connected with, draws cable rope.
7. middle pier pier-side bracket according to claim 1 or 2, which is characterized in that the quantity of the side stand is two.
8. middle pier pier-side bracket according to claim 1 or 2, which is characterized in that the number of the submounts in the pack support
Amount is two.
9. middle pier pier-side bracket according to claim 1 or 2, which is characterized in that multiple pipes in the side stand
It is connected between frame by multiple transverse connections.
10. a kind of construction method of pier pier-side bracket middle as claimed in any one of claims 1-9 wherein, which is characterized in that this is applied
Work method includes: to be fixedly connected with the pedestal of submounts with the cushion cap of middle pier；Pipe support is fixedly connected with pedestal；It will by attached wall
Pipe support is connected with the pier shaft side of middle pier；Box beam is fixed on to the top of pipe support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423162.0A CN109356036A (en) | 2018-11-26 | 2018-11-26 | Middle pier pier-side bracket and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423162.0A CN109356036A (en) | 2018-11-26 | 2018-11-26 | Middle pier pier-side bracket and its construction method |
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| Publication Number | Publication Date |
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| CN109356036A true CN109356036A (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811423162.0A Pending CN109356036A (en) | 2018-11-26 | 2018-11-26 | Middle pier pier-side bracket and its construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110258293A (en) * | 2019-07-22 | 2019-09-20 | 中铁大桥局集团有限公司 | Cable-stayed bridge steel truss girder main pylon pier top erection construction method |
| CN112095491A (en) * | 2020-09-09 | 2020-12-18 | 中铁六局集团有限公司 | Bidirectional cantilever erection construction process for Hualun type large-span steel truss girder bridge |
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| CN107604827A (en) * | 2017-08-04 | 2018-01-19 | 中铁大桥局集团有限公司 | A kind of porous large-span freely-supported steel truss girder bridge erection method |
| CN108589551A (en) * | 2018-06-07 | 2018-09-28 | 中交路桥华南工程有限公司 | Pier stud 0# beam section cast-in-place supports |
| CN209292896U (en) * | 2018-11-26 | 2019-08-23 | 中铁六局集团有限公司 | Middle pier pier-side bracket |
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| CN112095491A (en) * | 2020-09-09 | 2020-12-18 | 中铁六局集团有限公司 | Bidirectional cantilever erection construction process for Hualun type large-span steel truss girder bridge |
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