CN208733465U - The hinge of prefabricated assembled hollow slab girder stitches construction - Google Patents
The hinge of prefabricated assembled hollow slab girder stitches construction Download PDFInfo
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- CN208733465U CN208733465U CN201821277762.6U CN201821277762U CN208733465U CN 208733465 U CN208733465 U CN 208733465U CN 201821277762 U CN201821277762 U CN 201821277762U CN 208733465 U CN208733465 U CN 208733465U
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- hollow slab
- hinge
- cast hollow
- steel bar
- reinforcing steel
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Abstract
The utility model provides a kind of hinge seam construction of prefabricated assembled hollow slab girder, including the first pre-cast hollow slab and the second pre-cast hollow slab, passes through hinge seam connection between the first pre-cast hollow slab and the second pre-cast hollow slab；The first bending reinforcing steel bar is equipped in first pre-cast hollow slab, the first bending reinforcing steel bar is protruded into hinge seam from the lower edge of the first pre-cast hollow slab and is folded upward at；The second bending reinforcing steel bar is equipped in second pre-cast hollow slab, the second bending reinforcing steel bar is protruded into hinge seam from the lower edge of the second pre-cast hollow slab and is folded upward at, and the first bending reinforcing steel bar and the second bending reinforcing steel bar are located at the stirrup that the part in hinge seam forms closure.The utility model simple structure, easy for construction, cost is lower, forms stirrup by configuring the first bending reinforcing steel bar and the second bending reinforcing steel bar, improves the reliability of lateral connection between hinge seam and hollow slab girder, increase the shear resistant capacity of plate-girder entirety.
Description
Technical field
The utility model relates to bridge structure technical fields, stitch more particularly to a kind of hinge of prefabricated assembled hollow slab girder
Construction.
Background technique
It is prefabricated assembled freely-supported hollow slab bridge simple structure, easy for construction, it is widely used in medium and small span bridge.Assembly
Lateral connection is carried out using hinge seam between formula cored slab plate, under outer load action, every cored slab participates in stress jointly.Hinge
The connection of seam is the key that plate-girder pass force crossly, is found to the factual survey of built assembly concrete Supported Slab Bridge, concrete
Hinge seam damage phenomenon is generally existing, such as hinge seam concrete cracking, breakage, peeling and hinge seam distributing bar fracture, cuts with scissors seam
The load that damage bears part plate-girder increases, and reduces the globality of assembled Supported Slab Bridge, seriously threatens the peace of plate girder bridge
Entirely.
With the increase of the volume of traffic, standardizes defined lane load concentrated force and also increase, past common slab and girder
Shear-carrying capacity is insufficient, needs to take certain measure to improve structure shear resistance.
A kind of concrete core slab is disclosed in the Chinese utility model patent specification of application number 201610212145.7
Bridge hinge seam bar construction, primarily to a kind of new hinge seam reinforcing bar form of Used in Assemble Type Concrete Slab is provided, by new
Reinforcing bar pin joint structure solves the problems, such as that hinge seam tension reinforcement is insufficient with anchorage length in hinge seam in cored slab, and raising hinge is stitched anti-
Drawing ability provides a kind of concrete hollow slab bridge hinge seam bar construction, is arranged including cored slab ontology and its inside hollow
Plate stirrup, the hinge key of joint that multiple U-shapeds are provided between adjacent cored slab ontology connect reinforcing bar, hinge key of joint connect reinforcing bar and its two
Be provided between the cored slab stirrup of side multiple closed rings hinge seam tension reinforcement, inside cored slab stirrup and hinge key of joint
It connects and is respectively arranged with the vertical muscle of cored slab and hinge seam longitudinal reinforcement between reinforcing bar.Though above-mentioned concrete hollow slab bridge hinge seam bar construction
So two pieces of cored slabs are attached, however structure is complicated for hinge seam distributing bar, construction is inconvenient.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of hinge of prefabricated assembled hollow slab girder seam construct, with gram
Take the drawbacks described above of the prior art.
To achieve the above object, the hinge seam that the utility model provides a kind of prefabricated assembled hollow slab girder constructs, including the
One pre-cast hollow slab and the second pre-cast hollow slab lead between first pre-cast hollow slab and the second pre-cast hollow slab
Cross hinge seam connection；It is equipped with the first bending reinforcing steel bar in first pre-cast hollow slab, first bending reinforcing steel bar is from described first
The lower edge of pre-cast hollow slab protrudes into hinge seam, and is folded upward in the position close to the second pre-cast hollow slab；It is described
The second bending reinforcing steel bar is equipped in second pre-cast hollow slab, second bending reinforcing steel bar is under second pre-cast hollow slab
Edge protrudes into hinge seam, and is folded upward in the position close to the first pre-cast hollow slab, first bending reinforcing steel bar and institute
State the stirrup that the part that the second bending reinforcing steel bar is located in hinge seam forms closure.
Preferably, the upper limb of the hinge seam is equipped with several first longitudinal direction reinforcing bars, and the lower edge of the hinge seam is equipped with several second
The both sides of the edge of longitudinal reinforcement, the hinge seam are respectively equipped with several third longitudinal reinforcements.
Preferably, several third longitudinal reinforcements close to the second pre-cast hollow slab side pass through tied silk and described first respectively
Bending reinforcing steel bar binding, several third longitudinal reinforcements close to the first pre-cast hollow slab side pass through tied silk and described second curved respectively
Roll over reinforcing bar binding.
Preferably, the end of first bending reinforcing steel bar is equipped with the first crotch, and the end of second bending reinforcing steel bar is equipped with
Second crotch, first crotch and second crotch are connected on same root first longitudinal direction reinforcing bar.
Preferably, it is equipped with first in first pre-cast hollow slab and stretches out reinforcing bar, described first stretches out reinforcing bar from described
The upper limb of first pre-cast hollow slab protrudes into hinge seam, passes through under first longitudinal direction reinforcing bar, and it is prefabricated that second is entered after bending
Above hollow slab girder；It is equipped with second in second pre-cast hollow slab and stretches out reinforcing bar, described second stretches out reinforcing bar from described the
The upper limb of two pre-cast hollow slabs protrudes into hinge seam, passes through under first longitudinal direction reinforcing bar, and the first prefabricated sky is entered after bending
Above core beam.
Preferably, it is equipped with steel mesh of mating formation above first pre-cast hollow slab and the second pre-cast hollow slab, it is described
First stretching reinforcing bar and the second stretching reinforcing bar are bound with corresponding steel mesh of mating formation respectively.
As described above, the utility model relates to prefabricated assembled hollow slab girder hinge stitch construction, have below beneficial to effect
Fruit: simple structure, easy for construction, cost is lower, forms stirrup by configuring the first bending reinforcing steel bar and the second bending reinforcing steel bar, improves
The reliability of hinge seam and lateral connection between hollow slab girder, increases the shear resistant capacity of plate-girder entirety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the first bending reinforcing steel bar.
Fig. 3 is the structural schematic diagram of the second bending reinforcing steel bar.
Component label instructions
1 first pre-cast hollow slab
11 first bending reinforcing steel bars
111 first crotches
12 first stretch out reinforcing bar
2 second pre-cast hollow slabs
21 second bending reinforcing steel bars
211 second crotches
22 second stretch out reinforcing bar
3 hinge seams
31 first longitudinal direction reinforcing bars
32 second longitudinal direction reinforcing bars
33 third longitudinal reinforcements
4 mat formation reinforcing bar
5 templates
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the utility model enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong get Neng is covered.Meanwhile cited such as "upper", "lower", "left", "right", the use of " centre " in this specification
Language is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1 to Figure 3, the hinge seam that the utility model provides a kind of prefabricated assembled hollow slab girder constructs, including the
One pre-cast hollow slab 1 and the second pre-cast hollow slab 2, first pre-cast hollow slab 1 and the second pre-cast hollow slab 2 it
Between by 3 connection of hinge seam, first pre-cast hollow slab 1 and the second pre-cast hollow slab 2 are that assembled steel reinforced concrete is empty
Core beam is set based on the freely-supported Hollow Slab Beam Bridge standard map that bridges and culverts universal design figure or the public structural map of bridges and culverts are recommended
Family planning produces, and the scene that is transported to after being prefabricated in the factory carries out that hinge seam is cast-in-place, and hinge seam 3 is reinforced concrete structure, at the scene
It is poured.Its width is depending on bridge is wide with hollow slab girder quantity.
As shown in Figure 1 to Figure 3, the first bending reinforcing steel bar 11, first bending are equipped in first pre-cast hollow slab 1
Reinforcing bar 11 includes two parts, and a part is located at the position in first pre-cast hollow slab 1 close to lower edge, and another part is located at
In hinge seam 3, i.e., described first bending reinforcing steel bar 11 protrudes into hinge seam 3 from the lower edge of first pre-cast hollow slab 1, and
Position close to the second pre-cast hollow slab 2 is folded upward at.The second bending reinforcing steel bar is equipped in second pre-cast hollow slab 2
21, second bending reinforcing steel bar 21 includes two parts, and a part is located at the position in second pre-cast hollow slab 2 close to lower edge
It sets, another part is located in hinge seam 3, i.e., described second bending reinforcing steel bar 21 is stretched out from the lower edge of second pre-cast hollow slab 2
Into in hinge seam 3, and the position for cutting with scissors 3 top edges of seam is extended to after the position close to the first pre-cast hollow slab 1 is folded upward at
It sets, towards the end bending again of first bending reinforcing steel bar 21, thus first bending reinforcing steel bar 11 and second bending
Reinforcing bar 21 is located at the stirrup that the part in hinge seam 3 forms closure along 3 edges of hinge seam, and first bending reinforcing steel bar 11 and described is arranged
Second bending reinforcing steel bar, 21 one side plays the role of reinforcing connecting between hinge seam and pre-cast hollow slab, is on the other hand used as plate girder bridge
A part of stirrup improves the shear-carrying capacity of plate girder bridge.
As illustrated in fig. 1, it is preferred that the upper limb of the hinge seam 3 is equipped with several first longitudinal direction reinforcing bars 31, the hinge is stitched under 3
Edge is equipped with several second longitudinal direction reinforcing bars 32, and the both sides of the edge of the hinge seam 3 are respectively equipped with several third longitudinal reinforcements 33, and first is vertical
Two are respectively no less than to the quantity of reinforcing bar 31, second longitudinal direction reinforcing bar 32, the quantity of third longitudinal reinforcement 33 is according to detailing requiments
It determines.Several third longitudinal reinforcements 33 close to 2 side of the second pre-cast hollow slab pass through tied silk and first bent steel respectively
Muscle 11 is bound, and several third longitudinal reinforcements 33 close to 1 side of the first pre-cast hollow slab are curved by tied silk and described second respectively
It rolls over reinforcing bar 21 to bind, can divide in the hinge seam 3 close to the first bending reinforcing steel bar 11 of lower edge position and second bending reinforcing steel bar 21
Not Tong Guo tied silk and second longitudinal direction reinforcing bar 32 bind, wherein second longitudinal direction reinforcing bar 32 can be used as stress main reinforcement.
As shown in Figure 1 to Figure 3, it is preferable that the end of first bending reinforcing steel bar 11 is equipped with the first crotch 111, and described the
The end of two bending reinforcing steel bars 21 is equipped with the second crotch 211, and first crotch 111 and second crotch 211 are connected to same
On root first longitudinal direction reinforcing bar 31, the first crotch 111 and the second crotch 211 can be 135 degree of crotches, increase anchorage length to improve
Anchoring ability.
As shown in Figure 1 to Figure 3, it is preferable that it is equipped with first in first pre-cast hollow slab 1 and stretches out reinforcing bar 12, it is described
First stretching reinforcing bar 12 protrudes into hinge seam 3 from the upper limb of first pre-cast hollow slab 1, under first longitudinal direction reinforcing bar 31
It passes through, 2 top of the second pre-cast hollow slab is entered after bending；Second, which is equipped with, in second pre-cast hollow slab 2 stretches out reinforcing bar
22, the second stretching reinforcing bar 22 protrudes into hinge seam 3 from the upper limb of second pre-cast hollow slab 2, from first longitudinal direction
Across into 1 top of the first pre-cast hollow slab after bending under reinforcing bar 31.Selection of land, first pre-cast hollow slab 1 and second
Be equipped with and mat formation steel mesh above pre-cast hollow slab 2, described first stretch out reinforcing bar 12 and described second stretch out reinforcing bar 22 respectively with
Steel mesh 4 of mating formation accordingly is bound.
The utility model additionally provides a kind of construction method of the hinge seam construction of prefabricated assembled hollow slab girder, including as follows
Step:
S1, prefabricated first pre-cast hollow slab 1 and the second pre-cast hollow slab 2, by the first pre-cast hollow slab 1 and second
The side dabbing of pre-cast hollow slab 2, to reinforce cutting with scissors the adhesion strength of seam cast-in-place concrete and pre-cast hollow slab；
S2, the first bending reinforcing steel bar 11, the second bending reinforcing steel bar 21, first stretching reinforcing bar 12 and the second stretching reinforcing bar 22 are carried out
First bending reinforcing steel bar 11, the second bending reinforcing steel bar 21, first are stretched out reinforcing bar 12 and second and stretch out steel by Reinforcement Design according to design
Muscle 22 is respectively according to design position bending forming；
S3, the first pre-cast hollow slab 1 and the second pre-cast hollow slab 2 are hung to corresponding position by hanging apparatus；
S4, template 5 is installed to corresponding position, i.e., template 5 is located at the bottom that the hinge stitches 3, and two sides each extend over
To the bottom of first pre-cast hollow slab 1 and the second pre-cast hollow slab 2；
S5, corresponding position sets up first longitudinal direction reinforcing bar 31, second longitudinal direction reinforcing bar 32 and third longitudinal direction respectively in hinge seam 3
Reinforcing bar 33；
S6, the stirrup that the first bending reinforcing steel bar 11 and the binding of the second bending reinforcing steel bar 21 are formed to hinge seam 3；
S7, the first stretching reinforcing bar 12 and the second stretching reinforcing bar 22 are bound with corresponding steel mesh 4 of mating formation respectively；
S8, the casting concrete in hinge seam 3, on hinge the 3, first pre-cast hollow slab 1 of seam and the second pre-cast hollow slab 2
The pave-load layer casting concrete of side.
In conclusion the utility model effectively overcomes various shortcoming in the prior art and has high industrial exploitation value
Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (6)
1. the hinge of prefabricated assembled hollow slab girder a kind of stitches construction, which is characterized in that including the first pre-cast hollow slab (1) and the
Two pre-cast hollow slabs (2) pass through hinge seam (3) between first pre-cast hollow slab (1) and the second pre-cast hollow slab (2)
Connection；The first bending reinforcing steel bar (11) are equipped in first pre-cast hollow slab (1), first bending reinforcing steel bar (11) is from described
The lower edge of first pre-cast hollow slab (1) protrudes into hinge seam (3), and in the position close to the second pre-cast hollow slab (2)
It is folded upward at；The second bending reinforcing steel bar (21) are equipped in second pre-cast hollow slab (2), second bending reinforcing steel bar (21) from
The lower edge of second pre-cast hollow slab (2) protrudes into hinge seam (3), and close to the first pre-cast hollow slab (1)
Position is folded upward at, and first bending reinforcing steel bar (11) and second bending reinforcing steel bar (21) are located at the part shape in hinge seam (3)
At the stirrup of closure.
2. the hinge of prefabricated assembled hollow slab girder according to claim 1 stitches construction, it is characterised in that: the hinge stitches (3)
Upper limb be equipped with several first longitudinal direction reinforcing bars (31), it is described hinge seam (3) lower edge be equipped with several second longitudinal direction reinforcing bars (32), it is described
The both sides of the edge of hinge seam (3) are respectively equipped with several third longitudinal reinforcements (33).
3. the hinge of prefabricated assembled hollow slab girder according to claim 2 stitches construction, it is characterised in that: prefabricated close to second
Several third longitudinal reinforcements (33) of hollow slab girder (2) side are bound by tied silk and first bending reinforcing steel bar (11) respectively, are leaned on
Several third longitudinal reinforcements (33) of nearly first pre-cast hollow slab (1) side pass through tied silk and second bending reinforcing steel bar respectively
(21) it binds.
4. the hinge of prefabricated assembled hollow slab girder according to claim 2 stitches construction, it is characterised in that: first bending
The end of reinforcing bar (11) is equipped with the first crotch (111), and the end of second bending reinforcing steel bar (21) is equipped with the second crotch (211),
First crotch (111) and second crotch (211) are connected on same root first longitudinal direction reinforcing bar (31).
5. the hinge of prefabricated assembled hollow slab girder according to claim 2 stitches construction, it is characterised in that: described first is prefabricated
It is equipped with first in hollow slab girder (1) and stretches out reinforcing bar (12), described first stretches out reinforcing bar (12) from first pre-cast hollow slab
(1) upper limb protrudes into hinge seam (3), passes through under first longitudinal direction reinforcing bar (31), and the second precast hollow slab is entered after bending
Above beam (2)；It is equipped with second in second pre-cast hollow slab (2) and stretches out reinforcing bar (22), described second stretches out reinforcing bar (22)
It protrudes into hinge seam (3) from the upper limb of second pre-cast hollow slab (2), is passed through under first longitudinal direction reinforcing bar (31), it is curved
Enter above the first pre-cast hollow slab (1) after folding.
6. the hinge of prefabricated assembled hollow slab girder according to claim 5 stitches construction, it is characterised in that: described first is prefabricated
Be equipped with and mat formation steel mesh (4) above hollow slab girder (1) and the second pre-cast hollow slab (2), described first stretch out reinforcing bar (12) and
Described second stretches out reinforcing bar (22) binds with corresponding steel mesh of mating formation (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821277762.6U CN208733465U (en) | 2018-08-08 | 2018-08-08 | The hinge of prefabricated assembled hollow slab girder stitches construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821277762.6U CN208733465U (en) | 2018-08-08 | 2018-08-08 | The hinge of prefabricated assembled hollow slab girder stitches construction |
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| CN208733465U true CN208733465U (en) | 2019-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951418A (en) * | 2018-08-08 | 2018-12-07 | 上海勘测设计研究院有限公司 | The hinge seam construction and its construction method of prefabricated assembled hollow slab girder |
-
2018
- 2018-08-08 CN CN201821277762.6U patent/CN208733465U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951418A (en) * | 2018-08-08 | 2018-12-07 | 上海勘测设计研究院有限公司 | The hinge seam construction and its construction method of prefabricated assembled hollow slab girder |
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