CN108316132A - A kind of Simply supported non-uniform bridge structure construction and its construction method - Google Patents
A kind of Simply supported non-uniform bridge structure construction and its construction method Download PDFInfo
- Publication number
- CN108316132A CN108316132A CN201810065637.7A CN201810065637A CN108316132A CN 108316132 A CN108316132 A CN 108316132A CN 201810065637 A CN201810065637 A CN 201810065637A CN 108316132 A CN108316132 A CN 108316132A
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- Prior art keywords
- simply supported
- supported non
- construction
- precast beam
- bridge structure
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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
- 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of Simply supported non-uniform bridge structure constructions, and one section of precast beam is respectively set in continuous pier top both sides, spacing is equipped between the beam-ends face of the precast beam of both sides, it is characterised in that：In the continuous pier top of Simply supported non-uniform structure, only the top plate of two sections of precast beams is connected with bottom plate, beam body abdominal portion is not connected to, and forms the transformation for becoming continuous state from simply-supported state.The present invention reduces the binding of live crossbeam skeleton reinforcing steel bar, avoids reinforcing bar in length and breadth and staggeredly gather, increased operating space reduces cast-in-place workload, reduces difficulty of construction, ensure that construction quality.Compared with existing traditional Simply supported non-uniform structure construction, advantage is had more in difficulty of construction, economy etc..
Description
Technical field
The present invention relates to bridge structure design technical field, specifically a kind of Simply supported non-uniform bridge structure construction and
Its construction method.
Background technology
Currently, conventional Simply supported non-uniform structure constructs, it is in Ministry of Communications's packaged type bridges standard drawing and extensive at present
The Simply supported non-uniform structure used, pier top continuous segment generally are solid tunneling boring, and configure longitudinal reinforcement or steel beam, while horizontal
To being connected as one of cross bearer, and configure transverse steel.During practice of construction, vertically and horizontally reinforcing bar, steel beam are staggeredly close for pier top section
Cloth, concreting is difficult, and site welding heavy workload, construction space is small, and construction quality is difficult to ensure.
Invention content
The purpose of the present invention is to provide a kind of Simply supported non-uniform bridge structure constructions, it has traditional Simply supported non-uniform knot
The advantages of structure, while simple structure, reduce vertically and horizontally reinforcing bar and interlock, and reduce difficulty of construction, and construction is simple is convenient, ensures construction
Quality.
To achieve the goals above, the technical scheme is that：A kind of Simply supported non-uniform bridge structure construction, continuous
One section of precast beam is respectively set in pier top both sides, and spacing is equipped between the beam-ends face of the precast beam of both sides, it is characterised in that：In freely-supported
The continuous pier top for becoming continuous structure, only connects the top plate of two sections of precast beams with bottom plate, beam body abdominal portion is not connected to, shape
At the transformation for becoming continuous state from simply-supported state.
Further, in the longitudinally disposed permanent bearing of two rows of middle pier pier top, the permanent bearing of one row of left side is for setting up a left side
Side precast beam, the permanent bearing of one row of right side is for setting up right side precast beam, between left side precast beam and the top plate of right side precast beam
It is connected by casting top slab.
Further, after pier top sets up bent cap, permanent bearing is laid on bent cap.
Further, the length of casting top slab is greater than or equal to the spacing between the beam section of both sides precast beam.
Another object of the present invention is to provide a kind of Simply supported non-uniform bridge structure construction methods, reduce in length and breadth
Interlock to reinforcing bar, reduce difficulty of construction, construction is simple is convenient, ensures construction quality.
To achieve the goals above, technical scheme is as follows：A kind of Simply supported non-uniform bridge structure construction construction
Method, it is characterised in that the construction method includes the following steps：
A, bent cap is set up；
B, two rows of permanent bearings are laid on bent cap, and erecting beam is on corresponding permanent bearing, wherein left side precast beam
It is set up in the left side permanent bearing of one row, for right side erection of precast beams in the permanent bearing of one row of right side, left side precast beam and right side are prefabricated
It is set between the beam section of beam at regular intervals；
C, vertically and horizontally reinforcing bar is welded in binding, pours cast-in-place bottom plate and casting top slab successively；
D, after the completion of waiting for cast-in-place bottom plate and casting top slab, then the lateral connection between precast beam is completed.
Further, the length of casting top slab is more than the spacing between the beam section of two sections of precast beams.
Technical scheme of the present invention has apparent technical characterstic, first, on the basis of freely-supported precast beam, connection is adjacent
Two, across the top of precast beam, bottom plate, greatly reduce site operation difficulty；Second, crossbeam framework of steel reinforcement need not be bound, reduce
Vertically and horizontally reinforcing bar staggeredly, reduce the workload of live reinforcement welding and concreting, accelerate construction speed；Third,
There is certain economic sexual clorminance；Fourth, it is easy for construction, the system transform between temporary support and permanent bearing need not be carried out；
Fifth, site operation space is big, convenient and quick construction, quality is easy to ensure.This construction adapts to modern precast assembly structure
Demand for development, while meeting structure stress, construction and life requirement, further decrease site operation workload, drop
Low difficulty of construction achievees the purpose that novel and unique, flexible and changeable.
Description of the drawings
Fig. 1 is present invention construction facade layout drawing.
Fig. 2 is present invention construction facade detail drawing.
Fig. 3 is structure section arrangement schematic diagram of the present invention（Section is only to illustrate casting top slab and bottom plate with small box girder structure,
Remaining tectonic type only refers to）.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
The present invention is a kind of Simply supported non-uniform bridge structure structural scheme, mainly comprising precast beam 1, permanent bearing 2, bent cap
3, the components such as casting top slab 12, cast-in-place bottom plate 13, Prefabricated bar end face 14.After having set up bent cap 3, laid forever on bent cap 3
Long bearing 2, and erecting beam 1 is on permanent bearing 2, binding welding vertically and horizontally reinforcing bar pour cast-in-place bottom plate 13 and existing successively
Top plate 12 is poured, after the completion of waiting for cast-in-place bottom plate 13 and casting top slab 12, then completes the lateral connection between precast beam.
Spacing d between cast-in-place bottom plate 13 and the thickness and Prefabricated bar section 14 of casting top slab 12 is according to Force Calculation
It determines, to avoid upper limb top plate stress maximum position Chong Die with construction joint, the range L of casting top slab 12 can be increased, i.e. L>
D so that stress is more reasonable, needs to consider to reserve notch and reinforcing bar when beam prefabricated at this time.
Building method through the invention, worker can be that operating platform carries out subsequent construction, site operation space with bent cap 3
It is larger, while transverse steel is less, non-tunneling boring connection reduces cast in situs workload, and construction quality can be guaranteed, add
Fast construction speed.
The method have the characteristics that：In the continuous pier top of Simply supported non-uniform structure, only the top of precast beam, bottom plate are connected,
Beam body abdominal portion does not connect, and in the longitudinally disposed two rows of bearings of the same continuous pier pier top, need not carry out temporary support and permanent
System transform between bearing.On the basis of freely-supported precast beam, connection adjacent two is substantially reduced across the top of precast beam, bottom plate
Site operation difficulty；Crossbeam framework of steel reinforcement need not be bound, reduce vertically and horizontally reinforcing bar staggeredly, reduce live steel bar welding
The workload with concreting is connect, construction speed is accelerated；Site operation space is big, convenient and quick construction, and quality is easy to protect
Card.The permanent bearing of a row is only longitudinally arranged in middle pier in traditional Simply supported non-uniform construction, needs to realize in the construction process from facing
When switch to the system transform of permanent bearing, and pier pier top need not carry out system and turn in longitudinally disposed two rows of bearings in the present invention
It changes.
In the present description, it is to be understood that term "upper", "front", "rear", "left", "right", " is erected at "lower"
To ", " transverse direction ", "top", "bottom", "inner", the instructions such as "outside" orientation or positional relationship be orientation based on ... shown in the drawings or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (6)
1. a kind of Simply supported non-uniform bridge structure construction, one section of precast beam is respectively set in continuous pier top both sides, both sides it is prefabricated
Spacing is equipped between the beam-ends face of beam, it is characterised in that：It is only prefabricated by described two sections in the continuous pier top of Simply supported non-uniform structure
The top plate of beam is connected with bottom plate, and beam body abdominal portion is not connected to, and forms the transformation for becoming continuous state from simply-supported state.
2. a kind of Simply supported non-uniform bridge structure construction as described in claim 1, it is characterised in that：Middle pier pier top along longitudinal direction
The two rows of permanent bearings of setting, the permanent bearing of one row of left side is for setting up left side precast beam, and the permanent bearing of one row of right side is for setting up
Right side precast beam is connected between left side precast beam and the top plate of right side precast beam by casting top slab.
3. a kind of Simply supported non-uniform bridge structure construction as described in claim 1, it is characterised in that：After pier top sets up bent cap,
Permanent bearing is laid on bent cap.
4. a kind of Simply supported non-uniform bridge structure construction as described in claim 1, it is characterised in that：The length of casting top slab is big
In or equal to spacing between the beam section of both sides precast beam.
5. a kind of Simply supported non-uniform bridge structure construction method, it is characterised in that the construction method includes the following steps：
A, bent cap is set up；
B, two rows of permanent bearings are laid on bent cap, and erecting beam is on corresponding permanent bearing, wherein left side precast beam
It is set up in the left side permanent bearing of one row, for right side erection of precast beams in the permanent bearing of one row of right side, left side precast beam and right side are prefabricated
It is set between the beam section of beam at regular intervals；
C, vertically and horizontally reinforcing bar is welded in binding, pours cast-in-place bottom plate and casting top slab successively；
D, after the completion of waiting for cast-in-place bottom plate and casting top slab, then the lateral connection between precast beam is completed.
6. a kind of Simply supported non-uniform bridge structure construction method as claimed in claim 5, which is characterized in that casting top slab
Length be greater than or equal to both sides precast beam beam section between spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065637.7A CN108316132A (en) | 2018-01-23 | 2018-01-23 | A kind of Simply supported non-uniform bridge structure construction and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065637.7A CN108316132A (en) | 2018-01-23 | 2018-01-23 | A kind of Simply supported non-uniform bridge structure construction and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108316132A true CN108316132A (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810065637.7A Pending CN108316132A (en) | 2018-01-23 | 2018-01-23 | A kind of Simply supported non-uniform bridge structure construction and its construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004815A (en) * | 2019-03-29 | 2019-07-12 | 辽宁省交通规划设计院有限责任公司 | A kind of non-prestressed freely-supported turns Continuous Bridge and its construction method |
| CN110939051A (en) * | 2019-12-12 | 2020-03-31 | 成都轨道建设管理有限公司 | Subway hidden cover beam construction method |
-
2018
- 2018-01-23 CN CN201810065637.7A patent/CN108316132A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004815A (en) * | 2019-03-29 | 2019-07-12 | 辽宁省交通规划设计院有限责任公司 | A kind of non-prestressed freely-supported turns Continuous Bridge and its construction method |
| CN110939051A (en) * | 2019-12-12 | 2020-03-31 | 成都轨道建设管理有限公司 | Subway hidden cover beam construction method |
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