CN207109580U - A kind of anchor structure of modular expansion device for bridge - Google Patents
A kind of anchor structure of modular expansion device for bridge Download PDFInfo
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- CN207109580U CN207109580U CN201721026703.7U CN201721026703U CN207109580U CN 207109580 U CN207109580 U CN 207109580U CN 201721026703 U CN201721026703 U CN 201721026703U CN 207109580 U CN207109580 U CN 207109580U
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- anchor
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Abstract
The utility model discloses a kind of anchor structure of modular expansion device for bridge, it sets described modular expansion device between two sections of girders of bridge, the side bar of the modular expansion device is fixedly connected with the junction steel plate provided with 2 perforates, one end of anchor bar is attached thereto through perforate on junction steel plate, the other end is rotated to pre-embedded steel slab position during construction, and is welded and fixed with pre-embedded steel slab；Support case is welded and fixed by casing both sides and pre-embedded steel slab, meanwhile, supported box side plate and end plate are provided with some pegs, can strengthen the anchoring with beam body concrete.The utility model is the modular expansion device for bridge anchor structure without interspersed transverse steel, and technical scheme construction is simple is easy for installation efficient, anchoring property is reliable, the durable of retractor device and safe handling are can ensure that, and the retractor device is simple in construction, and production cost is low.
Description
Technical field
A kind of anchor structure of modular expansion device for bridge is the utility model is related to, belongs to bridge structure retractor device skill
Art field.
Background technology
The working environment of each portion's component in bridge throughout the year in outdoor, material influenceed by atmospheric environment various factors and
Telescopic variation is variable, if can not suitably allow its coordination type to become, release stress, destructive power is very big, and installation retractor device is exactly anti-
The only important construction measure of bridge collapse, wherein modular expansion device are a kind of now widely used retractor devices.With
Highway in China bridge construction develops rapidly, and bridge structure retractor device uses frequently as the main attached structure of bridge construction,
Retractor device is caused often to damage, the Destroy type of traditional modular expansion device shows as anchoring concrete and damaging coming off,
The fracture of retractor device side bar, side bar, which come off, supported box, displacement case come off collapses and the fracture of middle joist steel, wherein, it is side bar fracture, de-
Fall and be particularly acute with anchorage zone concrete breakage, significant portion reason is due to that retractor device anchor structure is unreasonable caused.
Modular expansion device tradition anchorage system is to be welded to connect steel plate under the side bar of modular expansion device, by mould
Numerical expression retractor device and Interal fixation, junction steel plate are traditionally arranged to be constant spacing, and an anchoring ring is then welded on steel plate,
Several transversely distributed steelbars are set again also cross anchoring ring and embedded bar, so as to realize the anchoring of modular expansion device.
Situation and research are actually used according to this kind of retractor device it is seen that, this anchoring type that modular expansion device uses always
Some defects and deficiency be present in formula：
（1）There is faulting of slab ends phenomenon in prefabricated beam bridge vertical and horizontal when bridge main beam is constructed, be easily caused retractor device anchoring
Reinforcing bar and embedded bar misplace, and transverse steel is difficult also cross anchoring ring reinforcing bar and embedded bar, modulus type is stretched
The anchoring effect of device is had a greatly reduced quality.
（2）Modular expansion device installation needs to need to cross reinforcing bar between retractor device anchoring ring and embedded bar, by
In the presence of the supported box and displacement case of modular expansion device so that it is very troublesome when transverse steel passes through, need to be in supported box
Blocked with displacement case, therefore truncated position can not anchor.
Wherein, the flexible dress of bridge modulus type disclosed in Application No. " 201410823424.8 " and " 201410679891.8 "
Anchor structure is put, using moveable anchor plate structure, can effectively avoid retractor device anchor bar and embedded bar from occurring
During dislocation, the problem of transverse steel is difficult also cross anchoring ring reinforcing bar and embedded bar, retractor device installation is substantially increased
Efficiency, improve the service life of modular expansion device.But in order to realize the transverse shifting of adjustable steel plate, it is still necessary to set horizontal
Blocked to round steel and at supported box and displacement case, the material of retractor device can be caused to increase, influence the economy of retractor device.
The content of the invention
The technical problems to be solved in the utility model be technical problem be to provide it is easy for installation efficiently, anchoring property it is good,
, can be with overcome the deficiencies in the prior art without the anchor structure of the modular expansion device for bridge of transverse steel.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions：A kind of bridge modulus type
The anchor structure of retractor device, including side bar, central sill is provided between side bar, supported box, displacement are interval with below side bar
Case and junction steel plate, embedded bar is provided with the beam body below side bar, is provided with pre-embedded steel slab on embedded bar, supported box and
The support of junction steel plate interval is connected on side bar, and supported box lower end is connected with pre-embedded steel slab, is provided with junction steel plate rotatable
Anchor bar, the other end of anchor bar is connected on pre-embedded steel slab.
Perforate is provided with foregoing junction steel plate, the anchor bar is Z-shape steel muscle, and one end of Z-shape steel muscle, which passes through, to be connected
The perforate connect on steel plate is attached thereto, and Z-shape steel muscle can rotate around tapping, and the other end welds with girder pre-embedded steel slab.
Foregoing junction steel plate is riveted with anchor bar use or the modes such as screw thread is be hinged are attached.
Spacing impartial setting between foregoing junction steel plate, and spacing is 15cm~20cm.
Foregoing supported box biside plate bottom is welded with pre-embedded steel slab respectively, and in supported box side plate and pre-embedded steel slab
Between using triangle iron plate strengthen welding.
The anchor structure of foregoing modular expansion device for bridge, it is additionally provided with the side and end of supported box and displacement case
More than 1 peg.
Compared with the prior art, the utility model sets described modular expansion device between two sections of girders of bridge,
The anchor bar and the pre-embedded steel slab of girder that the side bar of the modular expansion device is connected by junction steel plate, which are realized, to be fixed；Supporting
Case is welded and fixed by casing both sides and pre-embedded steel slab, meanwhile, it is provided with the side plate and end plate of supported box and displacement case some
Peg, the anchoring with beam body concrete can be strengthened.
The utility model has the advantages that：
（1）Using the technical solution of the utility model, avoid anchor bar and embedded bar in traditional anchorage style and exist
Vertical and horizontal misplace, because whole connection is that each connect all is closely connected firm, is also not in anchor using welding
Gu ring and the phenomenon of embedded bar sliding.
（2）Directly welded with pre-embedded steel slab using anchor bar, eliminate transverse steel, also in the absence of horizontal in traditional method
It can not be avoided also cross the situation of anchor bar and embedded bar and cross reinforcing bar and need to be blocked at supported box to reinforcing bar, point
The interspersed transverse steel construction of section brings adverse effect, also improves anchoring property.
（3）The side plate bottom of supported box and welded with pre-embedded steel slab, some bolts are welded with supported box, displacement case
Nail, the anchoring effect with concrete is enhanced, realize effective anchoring of support case and displacement case.
Therefore, the technical solution of the utility model construction is simple, anchoring property are reliable, it can be ensured that retractor device durable and
Safe handling, and the retractor device is simple in construction, and production cost is low.
Brief description of the drawings
Fig. 1 is the floor map of the utility model modulus retractor device anchor structure.
Fig. 2 is Fig. 1 midship section A-A schematic diagrames.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe：
As depicted in figs. 1 and 2, retractor device anchor structure of the present utility model is to be directed to modular expansion device for bridge,
The anchor structure of modular expansion device for bridge, it includes side bar 1, and central sill 2 is provided between side bar 1, is spaced below side bar 1
Provided with supported box 6, displacement case 7 and junction steel plate 3, pre-embedded steel slab 5 is arranged on the embedded bar at girder notch, between side bar 1
Every on support supported box 6, the lower end of supported box 6 is connected with pre-embedded steel slab 5, and anchor bar 4 is provided with junction steel plate 3, anchors steel
The other end of muscle 4 is connected on pre-embedded steel slab 5.
Junction steel plate 3 is fixed on the lower section of side bar 1, perforate is provided with junction steel plate 3, the anchor bar 4 is Z-shape steel
Muscle, one end of Z-shape steel muscle are attached thereto through the perforate on junction steel plate 3, and the other end is rotated to pre-embedded steel slab 5, and and its
It is fixed using welding.
With reference to Fig. 1 as can be seen that each piece of junction steel plate 3 is provided with 2 Z-shape steel muscle, and the Z-shape steel muscle other end is set
On pre-embedded steel slab 5, the distance every 15cm~20cm sets one piece of junction steel plate 3 and 2 Z-shape steel muscle.
The junction steel plate 3 can use riveting or screw thread articulated manner to be attached with anchor bar 4, be connected using screw thread
Connecing is, screw thread is provided with the one end of anchor bar 4, the end of thread is fixed thereto through tightening nuts after the perforate of junction steel plate 3, makes company
Connecing steel plate 3 and anchor bar 4 turns into an entirety, is made for factory, rotates anchor bar 4 to pre-embedded steel slab 5 during construction,
Carry out welding anchoring.
The end of supported box 6 is welded with pre-embedded steel slab 5 respectively with both sides, and is added by welding several triangle iron blocks 8
Therebetween connection by force, ensure that the two structural strength is good；And in supported box 6 and the end plate and plate-side plate welding of displacement case 7
Some pegs 9, between modular expansion device for bridge and pontic after casting concrete, peg 9 can strengthen the anchor of concrete
Gu.
Claims (6)
1. a kind of anchor structure of modular expansion device for bridge, it includes side bar（1）, in side bar（1）Between be provided with central sill
（2）, in side bar（1）Lower section is interval with supported box（6）, displacement case（7）And junction steel plate（3）, in side bar（1）The beam body of lower section
It is interior to be provided with embedded bar, it is characterised in that：Pre-embedded steel slab is provided with embedded bar（5）, supported box（6）And junction steel plate（3）
Interval support is connected to side bar（1）On, supported box（6）Lower end and pre-embedded steel slab（5）Connection, in junction steel plate（3）It is provided with anchor
Gu reinforcing bar（4）, anchor bar（4）The other end be connected to pre-embedded steel slab（5）On.
2. the anchor structure of modular expansion device for bridge according to claim 1, it is characterised in that：In junction steel plate
（3）On offer perforate, the anchor bar（4）For Z-shape steel muscle, one end of Z-shape steel muscle passes through junction steel plate（3）On perforate
It is attached thereto, the other end and pre-embedded steel slab of Z-shape steel muscle（5）Welding.
3. the anchor structure of modular expansion device for bridge according to claim 2, it is characterised in that：The junction steel plate
（3）With anchor bar（4）It is attached using riveting or screw thread articulated manner.
4. the anchor structure of modular expansion device for bridge according to claim 3, it is characterised in that：The junction steel plate
（3）Between spacing impartial setting, and spacing is 15cm~20cm.
5. the anchor structure of modular expansion device for bridge according to claim 1, it is characterised in that：The supported box
（6）Biside plate bottom respectively with pre-embedded steel slab（5）Welded, and in supported box（6）Side plate and pre-embedded steel slab（5）Between use
Triangle iron plate（8）Strengthen welding.
6. the anchor structure of modular expansion device for bridge according to claim 1 or 5, it is characterised in that：In supported box
（6）With displacement case（7）Side and end be additionally provided with more than 1 peg（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026703.7U CN207109580U (en) | 2017-08-16 | 2017-08-16 | A kind of anchor structure of modular expansion device for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026703.7U CN207109580U (en) | 2017-08-16 | 2017-08-16 | A kind of anchor structure of modular expansion device for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207109580U true CN207109580U (en) | 2018-03-16 |
Family
ID=61571764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721026703.7U Active CN207109580U (en) | 2017-08-16 | 2017-08-16 | A kind of anchor structure of modular expansion device for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207109580U (en) |
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2017
- 2017-08-16 CN CN201721026703.7U patent/CN207109580U/en active Active
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