CN208395685U - Prefabricating load for No. 0 block temporary support brackets of bridge applies structure - Google Patents
Prefabricating load for No. 0 block temporary support brackets of bridge applies structure Download PDFInfo
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- CN208395685U CN208395685U CN201820923902.6U CN201820923902U CN208395685U CN 208395685 U CN208395685 U CN 208395685U CN 201820923902 U CN201820923902 U CN 201820923902U CN 208395685 U CN208395685 U CN 208395685U
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- temporary support
- support brackets
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- prefabricating load
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Abstract
The utility model discloses the prefabricating loads for No. 0 block temporary support brackets of bridge to apply structure, including multiple bimodal reaction frames, bimodal reaction frame includes the main girder above temporary support brackets, along symmetrical spaced a pair of of the vertical upright column of bridge pier pier shaft width direction, multiple compartment of terrain cross at the diaphragm between vertical upright column, the diagonal brace of oblique connection column and main girder, it further includes vertically running through vertical upright column and stretching to the deformed bar in bridge pier pier shaft that prefabricating load, which applies structure, the support bolster for the bimodal reaction frame of support on temporary support brackets, the jack for being used to carry out bimodal reaction frame back-pressure on temporary support brackets.The utility model carries out prefabricating load application using jack pair bracket by the mechanism of vertical deformed bar and bimodal reaction frame, efficiently solves the problems, such as that No. 0 block bracket prefabricating load applies in special circumstances.
Description
Technical field
The utility model relates to technical field of bridge construction, in particular to for the pre- of No. 0 block temporary support brackets of bridge
Load is pressed to apply structure.
Background technique
The construction of bridge superstructure mainly has prefabricated installation and cast-in-place two major classes, according to the pattern and size of bridge, often
Using the cantilever joining method for belonging to prefabricated installation or belong to cast-in-place cantilever pouring method.The construction of its No. 0 block of Bridge
In be often used construction cradle, while being suitable for cantilever splicing and cantilever pouring.
When using construction cradle cantilever pouring and segment free cantilever erection, according to T structure cantilever, segment extends continuous beam one by one,
Finally close up to form Continuous Bridge construction.The benchmark section that segment main services T structure at the top of bridge pier pier shaft extends, referred to as No. 0 section
Section or No. 0 block, No. 0 block is unsatisfactory for Hanging Basket operating space sometimes, and benchmark section includes No. 0 block and No. 1 block support cast-in-place together.Benchmark
Section is designed as temporary support structure Cast-in-Situ Segment, as the benchmark section that cradle assembly platform and T structure extend, does for subsequent segmental construction
Prepare.No. 0 block of continuous steel frame is mass concrete cast-in-place construction, and one-time-concreting is required to form, the intensity of support construction and
Rigidity is to determine whether in-situ beam casting is successfully crucial.Bracket is subject to newly-laid concrete, falsework, small appliances self weight
With the main bearing member of construction pedestrian load, after the completion of bracket is assembled, construction review and weld seam detection are carried out.To ensure
In No. 0 block casting process or before prestressed concrete intensity load-bearing, the line style and design of beam section are consistent, avoid excessive deformation and two
Secondary deformation causes concrete stress crackle, and the precompressed of bracket must carry out, and the non-resilient of bracket is mainly eliminated in bracket precompressed
Deformation measures elastic deformation amount, sets the pre- throwing high level of bottom die of box-beam；Secondly examine the stress intensity of bracket rod piece, rigidity and
The overall stability of bracket.No. 0 block is by pier height, bridge floor width, river and closes on both conditions such as wired and is limited, tradition material object preloading
It can not implement with precompressed modes such as the equivalent loads of cushion cap prestressing force, can be carried out reliable prefabricating load there is an urgent need to one kind and apply knot
Structure.
Utility model content
The purpose of the utility model is to provide the prefabricating loads for No. 0 block temporary support brackets of bridge to apply structure, energy
In place of enough overcome the deficiencies in the prior art, by the mechanism of vertical deformed bar and bimodal reaction frame, while using very heavy
Top carries out prefabricating load application to bracket, efficiently solves the problems, such as that No. 0 block bracket prefabricating load applies in special circumstances.
The above-mentioned technical purpose of the utility model has the technical scheme that
Prefabricating load for No. 0 block temporary support brackets of bridge applies structure, including multiple bimodal reaction frames, described double
Peak reaction frame includes main girder above the temporary support brackets, along the symmetrical spaced a pair of bridge pier pier shaft width direction
Vertical upright column, multiple compartment of terrain cross at diaphragm, the oblique connection column and the main truss between the vertical upright column
The diagonal brace of beam, it further includes vertically running through the vertical upright column and stretching in the bridge pier pier shaft that the prefabricating load, which applies structure,
Deformed bar, on the temporary support brackets for bimodal reaction frame described in support support bolster, be set to institute
State the jack for being used to carry out the bimodal reaction frame back-pressure on temporary support brackets.
Precompressed lotus is carried out by the mechanism of vertical deformed bar and bimodal reaction frame, while using jack pair bracket
It carries and applies, efficiently solve the problems, such as that No. 0 block bracket prefabricating load applies in special circumstances；The prefabricating load apply structure because
It tears that easy for installation, security reliability is strong, pre-compressed effect is good, cost input is low open, has bad luck conveniently, stock utilization is high, has extensive
Use space.
Preferably, the bridge pier pier shaft is equipped with the bimodal reaction frame, different bridge pier piers on bridge width direction
The bimodal reaction frame with it is coplanar in same width section；It is double on same bridge pier pier shaft on bridge length direction
The setting of peak reaction frame spacing side by side.
To make bimodal reaction frame regularly continuously cover at the top of entire No. 0 block, meet the jacking precompressed behaviour of No. 0 block universe
Make.
Preferably, the main girder and vertical upright column welding consolidate, the diaphragm and the vertical upright column are welded
Connect consolidation, at the top of the top of the diagonal brace and the vertical upright column oblique welding consolidation, bottom and the main truss beam end or with
Oblique welding consolidation in the middle part of the main girder.
Between bimodal each main member of reaction frame all by welding consolidation, stable structure, strength and stiffness are big, can bear compared with
Big jacking precompression, simultaneous processing are convenient.
Preferably, the prefabricating load applies the bimodal reaction frame that structure includes at least the setting of three Pin spacing side by side, respectively
Horizontal-associate channel steel is welded on the diagonal brace of bimodal reaction frame described in Pin.
Veneer welds in the middle part of horizontal-associate channel steel and the diagonal brace, further increases the structural strength and stabilization of bimodal reaction frame
Property, and increase the size of the uniform force degree of each bimodal reaction frame when jack exerts a force and the jacking precompression being able to bear.
Preferably, the prefabricating load apply structure further include be fixedly arranged on needle beam at the top of the vertical upright column, with
And the anchorage for being used to fix the deformed bar on the needle beam.
Preferably, the support bolster, between the bridge pier pier shaft, the jack is located at the diagonal brace and institute
State the underface of the junction of main girder.
The setting of jack enables bracket by the counter-pressure balanced, eliminates the non-ballistic of temporary support brackets well
Property deformation.It supports the setting of bolster while supporting bimodal reaction frame weight, the counter-force of jack formation can be constrained, so that double
Stress between peak reaction frame and temporary support brackets is in balance.The setting position of jack is pushing up jack reversely
Additional lateral compression and Qu Li will not be generated when pressure, reduce other unnecessary loads, and guarantee that pressure on top surface is not divided
It dissipates, press effect is good.
Preferably, the needle beam is welded by two I-steel, the anchorage can be standard anchorage nut.
Preferably, the diagonal brace and main girder angle in the horizontal direction are 50 °.
Preferably, the support bolster and the temporary support brackets, the bimodal reaction frame bottom are closely connected.
Guarantee integrally-built stability and safety.
In conclusion the utility model has the following beneficial effects:
Precompressed lotus is carried out by the mechanism of vertical deformed bar and bimodal reaction frame, while using jack pair bracket
It carries and applies, efficiently solve the problems, such as that No. 0 block bracket prefabricating load applies in special circumstances；The prefabricating load apply structure because
It tears that easy for installation, security reliability is strong, pre-compressed effect is good, cost input is low open, has bad luck conveniently, stock utilization is high, has extensive
Use space.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model in bridge width direction；
Fig. 2 is structural schematic diagram of Fig. 1 embodiment in bridge length direction.
Specific embodiment
The utility model is described in more detail for scheme with reference to the accompanying drawing and preferably.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Embodiment: as shown in Figs. 1-2, the prefabricating load for No. 0 block temporary support brackets of bridge applies structure, including more
A bimodal reaction frame 2, bimodal reaction frame include the main girder 4, wide along bridge pier pier shaft 200 set on the top of temporary support brackets 100
Symmetrical spaced a pair of of the vertical upright column 5 in degree direction, multiple compartment of terrain cross at diaphragm 6 between vertical upright column, oblique
The diagonal brace 7 of column and main girder is connected, it further includes vertically running through vertical upright column and stretching to bridge pier pier that prefabricating load, which applies structure,
Deformed bar 1 in body, on temporary support brackets for the bimodal reaction frame of support support bolster 8, be set to it is interim
The jack 3 for being used to carry out bimodal reaction frame back-pressure on Support bracket.
Deformed bar model JL32.
The overall length of deformed bar is greater than 16m.
Pre-buried length of the deformed bar in bridge pier pier shaft is greater than 7m.
Jack payload ratings are 300t.
On bridge width direction, bridge pier pier shaft is equipped with bimodal reaction frame, the bimodal reaction frame on different bridge pier pier shafts
It is coplanar in same width section；Bimodal reaction frame spacing side by side setting on bridge length direction, on same bridge pier pier shaft.
Main girder and vertical upright column, which weld, to be consolidated, and diaphragm is consolidated with vertical upright column welding, and the top of diagonal brace is stood with vertical
Column top oblique welding consolidation, bottom and main truss beam end are consolidated with oblique welding in the middle part of main girder.
Prefabricating load applies the bimodal reaction frame that structure includes the setting of three Pin spacing side by side, the diagonal brace of each bimodal reaction frame of Pin
On be welded with horizontal-associate channel steel 11.
It further includes being fixedly arranged on needle beam 9 at the top of vertical upright column and on needle beam that prefabricating load, which applies structure,
For fixing the anchorage 10 of deformed bar.
Needle beam 9 is coplanar with the vertical upright column type heart.
Support bolster between bridge pier pier shaft, jack is located at the underface of the junction of diagonal brace and main girder.
Needle beam is welded by two I-steel, and anchorage can be standard anchorage nut.
Diagonal brace and main girder angle in the horizontal direction are 50 °.
Support bolster and temporary support brackets, bimodal reaction frame bottom closely connected.
Claims (9)
1. the prefabricating load for No. 0 block temporary support brackets of bridge applies structure, it is characterised in that: including multiple bimodal counter-forces
Frame (2), the bimodal reaction frame include main girder (4) above temporary support brackets (100), along bridge pier pier shaft (200)
Symmetrical spaced a pair of of the vertical upright column (5) of width direction, multiple compartment of terrain cross at the tabula between the vertical upright column
The diagonal brace (7) of beam (6), oblique the connection column and the main girder, it further includes vertically passing through that the prefabricating load, which applies structure,
It wears the vertical upright column and stretches to the deformed bar (1) in the bridge pier pier shaft, on the temporary support brackets
It is used for for the support bolster (8) of bimodal reaction frame described in support, on the temporary support brackets to described bimodal anti-
The jack (3) of power frame progress back-pressure.
2. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: on bridge width direction, the bridge pier pier shaft is equipped with the bimodal reaction frame, described bimodal on different bridge pier pier shafts
Reaction frame is coplanar in same width section；On bridge length direction, bimodal reaction frame on same bridge pier pier shaft side by side between
Every setting.
3. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the main girder and vertical upright column welding consolidate, and the diaphragm and vertical upright column welding consolidate, the diagonal brace
Top and the vertical upright column at the top of oblique welding consolidation, bottom and the main truss beam end or in the middle part of the main girder tiltedly
Hand over welding consolidation.
4. the prefabricating load according to claim 2 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the prefabricating load applies the bimodal reaction frame that structure includes at least the setting of three Pin spacing side by side, bimodal counter-force described in each Pin
Horizontal-associate channel steel (11) are welded on the diagonal brace of frame.
5. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the prefabricating load applies structure and further includes the needle beam (9) being fixedly arranged at the top of the vertical upright column and be set to described small
The anchorage (10) for being used to fix the deformed bar on crossbeam.
6. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: for the support bolster between the bridge pier pier shaft, the jack is located at the connection of the diagonal brace and the main girder
The underface at place.
7. the prefabricating load according to claim 5 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the needle beam is welded by two I-steel, and the anchorage can be standard anchorage nut.
8. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the diagonal brace and main girder angle in the horizontal direction are 50 °.
9. the prefabricating load according to claim 1 for No. 0 block temporary support brackets of bridge applies structure, feature exists
In: the support bolster and the temporary support brackets, the bimodal reaction frame bottom are closely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923902.6U CN208395685U (en) | 2018-06-14 | 2018-06-14 | Prefabricating load for No. 0 block temporary support brackets of bridge applies structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923902.6U CN208395685U (en) | 2018-06-14 | 2018-06-14 | Prefabricating load for No. 0 block temporary support brackets of bridge applies structure |
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| CN208395685U true CN208395685U (en) | 2019-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487084A (en) * | 2018-06-14 | 2018-09-04 | 中铁十六局集团第三工程有限公司 | Prefabricating load for No. 0 block temporary support brackets of bridge applies structure |
-
2018
- 2018-06-14 CN CN201820923902.6U patent/CN208395685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487084A (en) * | 2018-06-14 | 2018-09-04 | 中铁十六局集团第三工程有限公司 | Prefabricating load for No. 0 block temporary support brackets of bridge applies structure |
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