CN208280012U - A kind of simply supported girder bridge panel continuous structure - Google Patents
A kind of simply supported girder bridge panel continuous structure Download PDFInfo
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- CN208280012U CN208280012U CN201721652350.1U CN201721652350U CN208280012U CN 208280012 U CN208280012 U CN 208280012U CN 201721652350 U CN201721652350 U CN 201721652350U CN 208280012 U CN208280012 U CN 208280012U
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- girder
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- bent cap
- simply supported
- continuous slab
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Abstract
The utility model relates to a kind of simply supported girder bridge panel continuous structures, including the bent cap below the girder of bridge floor two sides is arranged in, it further includes being arranged in adjacent two across the continuous slab between girder that the bent cap, which is fixed at the top of column, the continuous slab is formed by cast in situs, to realize the connection of continuous slab.Compared with prior art, the utility model has that road-ability is good, structural integrity is good, can solve the problem of status freely supported structure continuously stitch easy crack and water leakage, simple structure, it is easy for construction the advantages that.
Description
Technical field
The utility model relates to bridge structure technical fields, and in particular to a kind of simply supported girder bridge panel continuous structure.
Background technique
Simply supported girder bridge panel continuous structure is that a kind of be combined together by using connecting plate and girder becomes a bridge floor
Continuous overall structure, while guaranteeing the structure of its girder freely-supported again.Bridge floor continuous structure in bridge floor continuous freely supported beam bridge is
The weak link of structure.Itself with regard to structure, since girder is simply supported beam, bridge floor continuous structure is located at the beam-ends of girder, is
Main beam deformation (including rotation and beam body are stretched) maximum position.At present when usual multispan freely-supported bridge structure design, in order to true
It protects road-ability, reduce expansion joint, freely supported structure is usually made into several bridge floor continuous structures or freely-supported across one and becomes company
Continuous overall structure.
Conventional Simply supported non-uniform structure, changes the whole stress of simply supported beam, to resist pier top hogging moment, needs to configure
More reinforcing bar and steel beam, site operation quality are often difficult to ensure.Usually in Simply supported non-uniform structure bent cap, using rectangle
The structure height of bent cap, bent cap and superstructure is higher, influences under-clearance and landscape.And it is being reduced in Urban Bridge
Structure height and from the aspect of landscape, Inverted T beam is generallyd use under bridge, it, will to reduce expansion joint, ensuring road-ability
Above-mentioned freely supported structure be made into it is several across one bridge floor continuous structure, but there is also twice cracks for every pier junction.
Conventional bridge floor continuously stitches only carries out simple structure processing in bridge pave-load layer, and main beam structure is still freely-supported knot
Structure.It is this construction it is easy to damage, it is easy infiltration, stability it is poor, drawback becomes clear day by day in use.By improving, also have more
The processing mode that kind of bridge floor continuously stitches, but be to be transformed in pave-load layer thickness range, for example pre-embedded steel slab, reinforcing bar or adopt
With measures such as flexible materials, construction complexity, construction quality and material property are difficult to ensure.
Therefore, for current simply supported beam bridge floor continuous structure and its construction method, there is a need to carry out Improvement with
Ask further optimization.Those skilled in the art has been devoted to develop a kind of simply supported girder bridge panel continuous structure and its applies
Work method not only has many advantages, such as that the structure of common Simply supported non-uniform structure is reliable, durability is good to overcome the above shortcomings, also
It can improve that existing simply supported girder bridge plane connection structure seam crossing is easy to damage, easy infiltration, the disadvantage of stability difference, and structure is simple, applies
Work is convenient, and integrality performance of the structure is excellent, can guarantee the comfort level etc. of bridge floor up train.
Utility model content
The shortcomings that for the above-mentioned prior art or deficiency, the technical problem to be solved by the present invention is to provide a kind of freely-supporteds
Beam bridge floor continuous structure.
In order to solve the above technical problems, the utility model has following constitute:
A kind of simply supported girder bridge panel continuous structure, including the bent cap below the girder of bridge floor two sides is arranged in, the bent cap is solid
It is scheduled at the top of column, it is characterised in that the simply supported girder bridge panel continuous structure further includes being arranged in adjacent two across between girder
Continuous slab, the continuous slab are formed by cast in situs, to realize the connection of continuous slab.
The continuous slab with a thickness of 15-35 cm.
The length of the continuous slab is made of slit width L1 and two sections of isolation length L2.
The isolation length L2 is 0-250 cm.
The cross-section structure of the bent cap is inverted T-shaped or rectangular configuration.
The flank of the bent cap or top set there are two make the girder become freely supported structure support.
Using the construction method of the simply supported girder bridge panel continuous structure, steps are as follows: step 1: on the column top
Portion's setting installation bent cap；Step 2: support is arranged on the bent cap and lifts girder, the girder is made to become simply-supported state；Step
Rapid three: across assembling reinforcement between girder and pouring one layer of continuous slab adjacent two.
Reserved steel bar connector when the girder is prefabricated, after adjacent two across main cable and girder in place after, set up welded reinforcement and pour
Build the connection that concrete realizes continuous slab.
It is successively laid with concrete pavement layer and asphalt pavement from lower to upper in the upper surface of the continuous slab and precast beam
Layer.
Compared with prior art, the utility model has the advantages that
1) using pantostrat is poured between simply supported beam, cast in situs pantostrat can effectively avoid connecing the utility model
The defect of cracking leak is easy at seam, structure is simple, and easy for construction, overall performance is excellent and can guarantee the comfortable of bridge floor driving
Degree；
2) thickness of continuous slab is set as 15-35 cm in the utility model, and isolation length L2 is set as 0-250 cm, should
Through Test Summary, design parameter value is computed determination, continuous plate thickness according to different girder across footpaths and girder rigidity for design
Spend it is smaller, the stress of system of simple supporting will not be changed, not because pouring layer is too thick it is too thin or be laid with length due to bring it is some attached
Category problem, it is easy for construction under the premise of meeting that structure is reliable, durability is good, can be good at that seam crossing is avoided to be easy infiltration
The shortcomings that；
3) section of the bent cap in the utility model uses inverted T-shaped or rectangular configuration, can be suitable according to practice of construction situation
Work as adjustment, it is adaptable；
4) construction method of the utility model, short construction period, construction procedure is simple and effective, and labor intensity is small.
Detailed description of the invention
Fig. 1: inverted T-shaped bent cap continuous structure schematic diagram in the utility model simply supported beam bridge floor；
Fig. 2: rectangle bent cap continuous structure schematic diagram in the utility model simply supported beam bridge floor；
Fig. 3: the utility model simply supported girder bridge panel continuous structure construction drawing (one)；
Fig. 4: the utility model simply supported girder bridge panel continuous structure construction drawing (two).
Specific embodiment
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
As shown in Figure 1 to Figure 2, the utility model discloses a kind of simply supported girder bridge panel continuous structures, including are arranged in bridge
The bent cap 20 of 10 lower section of face two sides girder, the bent cap 20 are fixed at the top of column, further include being arranged adjacent two across girder 10
Between continuous slab 30, the continuous slab 30 is by pouring to be formed.The section of the bent cap 20 be inverted T-shaped structure (see figure 1) or
Rectangular configuration (see figure 2).The utility model, can be according to practice of construction feelings using the bent cap 20 of inverted T-shaped structure or rectangular configuration
Condition appropriate adjustment, it is adaptable.
Embodiment one
The bent cap 20(inverted T-shaped structure) two flanks on be respectively equipped with support 21.It pours or lifts to the bent cap 20
After the completion, erection support 21, the girder 10 are mounted on 20 top of bent cap by support 21, form system of simple supporting.Specifically
When implementation, reserved steel bar connector when the girder 10 is prefabricated is set up welded reinforcement and is poured after the two adjacent liftings in place of girders 10
It builds concrete and forms continuous slab.Cast in situs continuous slab can effectively avoid seam crossing from being easy the defect of cracking leak, and tie
Structure is simple, easy for construction.
The length of the continuous slab 30 is made of slit width L1 and two sections of isolation length L2.The slit width L1 refers to, two sides phase
Horizontal distance between adjacent 10 beam-ends of girder, in the present embodiment, L1 refers to slit width between Inverted T beam top width and girder and beam
The sum of.
The isolation length L2 refers to the outwardly extending length of seam edge, and under normal circumstances, length L2 is along connecing for isolation
The length that tape edge edge extends to two sides is consistent.Continuous slab 30 needs to guarantee that stress meets code requirement, continuous plate thickness and continuous
Plate length (L2+L1+L2) is related with simple beam structure rigidity and load, need to be determined according to force request, and according to force request
Configure certain reinforcing bar or steel beam.
According to prolonged test and experience accumulation, the isolation length L2 is 0-250 cm, the thickness of the continuous slab 30
Degree is 15-35 cm.The thickness of continuous slab is set as 15-35 cm in the utility model, and isolation length L2 is set as 0-250 cm,
The design is computed determination, continuous slab according to different girder across footpaths and girder rigidity through Test Summary, design parameter value
Thickness is smaller, will not change the stress of system of simple supporting, does not bring due to pouring layer is too thick or too thin or laying length
Subsidiary issue can be good at the shortcomings that avoiding seam crossing from being easy infiltration under the premise of meeting that structure is reliable, durability is good.
Embodiment two
Embodiment two and the difference of embodiment one are that the cross-section structure of the bent cap 20 is substituted for rectangular configuration, described
Bent cap 20(rectangular configuration) top be arranged two groups of supports 21.
The length of the continuous slab 30 is made of the summation of slit width L1 and two sections of isolation length L2.The slit width L1 refers to,
Horizontal distance between adjacent 10 beam-ends of girder in two sides, in the present embodiment, since the rectangular configuration is located at two girders 10
Lower section, so, slit width L1 only refers to the horizontal distance between adjacent 10 beam-ends of girder in two sides, and does not include the width of rectangular configuration.
Using the construction method (see Fig. 3 and Fig. 4) of the simply supported girder bridge panel continuous structure, described Fig. 3 and Fig. 4 are only enumerated
Construction procedure when bent cap 20 section is inverted T-shaped structure, when bent cap 20 is rectangular configuration, it is only necessary to replace inverted T-shaped structure
Change rectangular configuration into, concrete construction method is as follows:
Step 1: the setting installation bent cap 20 at the top of the column；It is suitable to select according to field condition when Specific construction
Bent cap 20, such as inverted T-shaped structure or rectangular configuration.
Step 2: the support 21 is set in 20 flank of bent cap or top；Specifically, the bent cap 20(inverted T-shaped knot
Structure) two flanks on be respectively equipped with support 21, Huo Zhewei, the structure of the bent cap 20 is substituted for rectangular configuration, the bent cap
20(rectangular configuration) top two sides be respectively equipped with support 21.It lifts the girder 10 and is installed in place, erection of main beam is in described
On support 21, superstructure stress is transmitted on the bent cap 20 by the support 21, structure is freely supported structure body at this time
System.
Step 3: after adjacent two lift in place across the precast main beam 10, steel is bound between above-mentioned precast main beam 10
Muscle pours one layer of continuous slab 30.
Continuous slab 30 needs to guarantee that stress meets code requirement, continuous plate thickness and continuous slab length (L2+L1+L2) and letter
The strutbeam rigidity of structure and load are related, need to be determined according to force request, and certain reinforcing bar or steel beam are configured according to force request.
The continuous slab 30 pours thickness and length specifically, according to prolonged test and experience accumulation, the isolation length L2
For 0-250 cm, the continuous slab 30 with a thickness of 15-35 cm.The thickness of continuous slab is set as 15-35 in the utility model
Cm, isolation length L2 are set as 0-250 cm, and the design is through Test Summary, not because pouring layer is too thick or too thin or laying length
It is short and bring some subsidiary issues, it under the premise of meeting that structure is reliable, durability is good, can be good at that seam crossing is avoided to be easy
The shortcomings that infiltration.
After the completion of above-mentioned continuous slab 30 pours, finally the upper surface of the continuous slab 30 and precast main beam 10 from it is lower toward
On be successively laid with concrete pavement layer 40 and asphalt mixture surfacing 50.
The purpose of the utility model is to provide one kind to be not only able to satisfy force request, but also can guarantee that continuous seam is hardly damaged, no
Easy infiltration, simple structure, simply supported girder bridge panel continuous structure easy for construction.The utility model uses between simply supported beam bridge floor
The lesser continuous slab of thickness is poured, cast in situs pantostrat can effectively avoid seam crossing from being easy the defect of cracking leak, tie
Structure is simple, easy for construction, does not change simply supported beam stress system, overall performance is excellent and can guarantee the comfort level of bridge floor driving.This
The construction method of utility model, short construction period, construction procedure is simple and effective, and labor intensity is small.
The utility model proposes simply supported girder bridge panel construction and its construction method, applicability, difficulty of construction, construction work
All various aspects such as phase, operational effect have higher market popularization value, have a extensive future.
Above embodiments are only to illustrate the technical solution of the utility model and non-limiting, reference only to preferred embodiment pair
The utility model is described in detail.Those skilled in the art should understand that can be to the technology of the utility model
Scheme is modified or equivalent replacement, without departing from the spirit and scope of the technical scheme of the present invention, should all cover in this reality
With novel scope of the claims.
Claims (3)
1. a kind of simply supported girder bridge panel continuous structure, described including the bent cap (20) being arranged below bridge floor two sides girder (10)
Bent cap (20) is fixed at the top of column, which is characterized in that further includes being arranged adjacent two across the continuous slab between girder (10)
(30), the continuous slab (30) is formed by cast in situs, and to realize the connection of continuous slab (30), the continuous slab (30) is close to
Setting at the top of bent cap (20), the continuous slab (30) with a thickness of 15-35 cm, the length of the continuous slab (30) is by slit width L1
It is constituted with two sections of isolation length L2, the isolation length L2 is 0-250 cm.
2. simply supported girder bridge panel continuous structure according to claim 1, which is characterized in that the section knot of the bent cap (20)
Structure is inverted T-shaped or rectangular configuration.
3. simply supported girder bridge panel continuous structure according to claim 1, which is characterized in that the flank of the bent cap (20) or
Top set there are two make the girder (10) become freely supported structure support (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652350.1U CN208280012U (en) | 2017-12-01 | 2017-12-01 | A kind of simply supported girder bridge panel continuous structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652350.1U CN208280012U (en) | 2017-12-01 | 2017-12-01 | A kind of simply supported girder bridge panel continuous structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208280012U true CN208280012U (en) | 2018-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721652350.1U Active CN208280012U (en) | 2017-12-01 | 2017-12-01 | A kind of simply supported girder bridge panel continuous structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208280012U (en) |
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2017
- 2017-12-01 CN CN201721652350.1U patent/CN208280012U/en active Active
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