CN202164552U - Prepressing counter-force frame device of model 0 block support frame - Google Patents
Prepressing counter-force frame device of model 0 block support frame Download PDFInfo
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- CN202164552U CN202164552U CN2011202552450U CN201120255245U CN202164552U CN 202164552 U CN202164552 U CN 202164552U CN 2011202552450 U CN2011202552450 U CN 2011202552450U CN 201120255245 U CN201120255245 U CN 201120255245U CN 202164552 U CN202164552 U CN 202164552U
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- reaction frame
- carriage
- counter
- bar
- precompressed
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Abstract
The utility model discloses a prepressing counter-force frame device of a model 0 block support frame, comprising a pillar top pre-planting steel bar, a counter-force frame and a lifting jack, wherein the pillar top pre-planting steel bar is embedded at the top of a pillar body, the counter-force frame is welded by a connecting rod through a ladder-shaped truss, the counter-force frame is connected with the pillar top pre-planting steel bar in an anchoring way, the counter-force frame is arranged right above the support frame, and the lifting jack is arranged between the counter-force frame and the lifting jack. By adopting the structure, the support frame can be prepressed by equivalent load by the stretch-draw counter force by the means that the pillar top pre-planting steel bar is taken as a force application system of the prepressing counter-force frame, so that the prepressing loading problem of the support frame can be well solved.
Description
Technical field
The utility model relates to a kind of bridge construction equipment, No. 0 piece carriage precompressed reaction frame device that can load as precompressed when especially relating to a kind of bridge construction.
Background technology
When Hanging Basket cantilever and section assembling; To whole beam be divided into some sections by length or presstressed reinforcing steel or rod member; Construct piecemeal, that section at general pier shaft top is called No. 0 sections or No. 0 piece, and the sections No. 0 general designing requirement of piece of cast-in-place beam of constructing need adopt support cast-in-place to accomplish; Accomplish the back on it as the Hanging Basket platform for lining, construct for follow-up box girder segment and to prepare.No. 0 piece of continuous rigid frame is generally the concrete in mass cast-in-place construction; The stability of support and deflection are the keys of the cast-in-place beam construction of decision success or not, and the carriage assembly unit must be carried out the precompressed of carriage after accomplishing; Eliminate nonelastic deformation; The elastic deformation of measurement under corresponding load action in order to the stressing conditions of check rod member and the stability of whole carriage, considered corresponding camber according to the precompressed result when formwork erection.But pier is high owing to receiving, natural conditions such as bridge floor is narrow, river limit for No. 0 piece that has, and precompressed modes such as traditional preloading in kind and prestressing force equivalence loading are difficult to carry out, and therefore, design a kind of device that reliably carries out the prestressing force loading and necessitate.
The utility model content
The utility model technical problem to be solved can realize No. 0 piece carriage precompressed reaction frame device that precompressed loads when being to provide a kind of bridge construction reliably.
The technical scheme of the utility model is following: a kind of No. 0 piece carriage precompressed reaction frame device; Its main points are: comprise that Dun Ding plants reinforcing bar, reaction frame and jack in advance; Wherein said Dun Ding plants reinforcing bar in advance and is embedded in pier shaft pier top, and said reaction frame is welded through connecting rod by parallel chord truss, and this reaction frame and said Dun Ding plant the reinforcing bar anchor connection in advance; Said reaction frame be positioned at carriage directly over, between said reaction frame and carriage, be provided with said jack.Adopt above structure, through planting the stressed system of reinforcing bar in advance at Dun Ding, thereby utilize the jack tension counter-force to carry out the equivalent load precompressed, well solved the loading problem of carriage precompressed carriage as the precompressed reaction frame.
Said reaction frame comprises three parallel chord trusses that are arranged side by side, and three this parallel chord truss upper ends are welded with two distribution beam, is welded with said connecting rod at three this parallel chord truss middle parts, and said Dun Ding plants the reinforcing bar upper end in advance and is anchored on said distribution beam.Adopt above structure; This reaction frame comprises three parallel chord trusses that are arranged side by side; So the carrier structure of the structure of this reaction frame and its below adapts; Be provided with jack and carry out back-pressure this moment between reaction frame and carriage, thereby make carriage can receive the counter-pressure of balance, well eliminates the nonelastic deformation of carriage.
Said parallel chord truss is made up of top, horizontal bar, bottom level bar, diagonal brace and vertical rod; Said top, horizontal bar is positioned at directly over the bottom level bar; Said diagonal brace is welded in both sides between this top, horizontal bar and bottom level bar; Welding said vertical rod in middle part adopts the steel plate fillet weld to connect between said top, horizontal bar and said diagonal brace and the vertical rod, adopt the steel plate fillet weld to connect between said bottom level bar and said diagonal brace and the vertical rod.Above structure can either guarantee the intensity of parallel chord truss, also convenient simultaneously processing.
Adopt four said jack to carry out back-pressure between each said reaction frame and the carriage, thereby make the stressed balance that is between reaction frame and the carriage.
Beneficial effect: the utility model is planted reinforcement constitution carriage precompressed reaction frame in advance through Dun Ding, adopts the jack pair carriage to load precompressed, has solved No. 0 piece carriage precompressed problem in particular cases; The utility model is because of the precompressed quality is good, security performance is high, cost is low, easy construction, and tool has a broad prospect of the use.
Description of drawings
Fig. 1 is the structure intention of the utility model;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
See also Fig. 1 and Fig. 2: a kind of No. 0 piece carriage precompressed reaction frame device; Comprise that Dun Ding plants reinforcing bar 1, reaction frame 2 and jack 3 in advance, wherein said Dun Ding plants reinforcing bar 1 in advance and is embedded in pier shaft pier top, and it is the 7 meters long high-strength finish rolling deformed bars of Φ 32mm that this Dun Ding plants reinforcing bar 1 in advance; Said reaction frame 2 is welded through connecting rod 10 by parallel chord truss; This reaction frame 2 is planted reinforcing bar 1 anchor connection in advance with said Dun Ding, said reaction frame 2 be positioned at carriage 4 directly over, between said reaction frame 2 and carriage 4, be provided with said jack 3; And adopt four said jack 3 to carry out back-pressure between each said reaction frame 2 and the carriage 4; Said reaction frame 2 comprises three parallel chord trusses that are arranged side by side, and three this parallel chord truss upper ends are welded with two distribution beam 5, is welded with said connecting rod 10 at three this parallel chord truss middle parts; Said Dun Ding plants reinforcing bar 1 upper end in advance and is anchored on said distribution beam 5, and said distribution beam 5 is welded by two blocks of channel-section steels back-to-back.
In Fig. 1, it can also be seen that: said parallel chord truss is made up of top, horizontal bar 6, bottom level bar 7, diagonal brace 8 and vertical rod 9; Said top, horizontal bar 6 is positioned at directly over the bottom level bar 7; Said diagonal brace 8 is welded in both sides between this top, horizontal bar 6 and bottom level bar 7; Welding said vertical rod 9 in middle part adopts the steel plate fillet weld to connect between said top, horizontal bar 6 and said diagonal brace 8 and the vertical rod 9, adopt the steel plate fillet weld to connect between said bottom level bar 7 and said diagonal brace 8 and the vertical rod 9.
The precompressed operating process is such:
(1) jack is placed
Between this reaction frame and carriage, place jack, for stress performance, the safety of checking carriage, jack should place the carriage front end; Because bed die is laid,, need right-angled triangle angle bar leveling piece to be set in the corresponding bed die position of carriage front end for leveling; Place sleeper then on it; Place 1 cm thick steel plate on the sleeper, place two 32a i iron on the steel plate, 2 cm thick steel plates are welded as the jack set-point in corresponding reaction frame position on the i iron; Sleeper is placed height and is determined according to the headroom between bed die and the reaction frame.
(2) survey mark is arranged
Observation point is set, draws "+" number with red paint, the absolute altitude before not exerting pressure is conscientiously measured, write down to marked.
(3) pressurization
Implement the loading to carriage simultaneously by some jack, load and undertaken by 20%, 40%, 80%, 100% classification, every grade is held the lotus time is 30min, and measures the variation of carriage absolute altitude, carries out record.
(4) precompressed finishing analysis as a result
The above is merely the preferred embodiment of the utility model; It is not restriction with the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. No. 0 piece carriage precompressed reaction frame device; It is characterized in that: comprise that Dun Ding plants reinforcing bar (1), reaction frame (2) and jack (3) in advance; Wherein said Dun Ding plants reinforcing bar (1) in advance and is embedded in pier shaft pier top; Said reaction frame (2) is welded through connecting rod (10) by parallel chord truss; This reaction frame (2) and said Dun Ding plant reinforcing bar (1) anchor connection in advance, said reaction frame (2) be positioned at carriage (4) directly over, between said reaction frame (2) and carriage (4), be provided with said jack (3).
2. No. 0 piece carriage precompressed reaction frame device according to claim 1; It is characterized in that: said reaction frame (2) comprises three parallel chord trusses that are arranged side by side; Three this parallel chord truss upper ends are welded with two distribution beam (5); Be welded with said connecting rod (10) at three this parallel chord truss middle parts, said Dun Ding plants reinforcing bar (1) upper end in advance and is anchored on said distribution beam (5).
3. No. 0 piece carriage precompressed reaction frame device according to claim 1 and 2; It is characterized in that: said parallel chord truss is made up of top, horizontal bar (6), bottom level bar (7), diagonal brace (8) and vertical rod (9); Said top, horizontal bar (6) is positioned at directly over the bottom level bar (7); Said diagonal brace (8) is welded in both sides between this top, horizontal bar (6) and bottom level bar (7); Middle part welding said vertical rod (9) adopts the steel plate fillet weld to connect between said top, horizontal bar (6) and said diagonal brace (8) and the vertical rod (9), adopt the steel plate fillet weld to connect between said bottom level bar (7) and said diagonal brace (8) and the vertical rod (9).
4. No. 0 piece carriage precompressed reaction frame device according to claim 1 is characterized in that: adopt four said jack (3) to carry out back-pressure between each said reaction frame (2) and the carriage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202552450U CN202164552U (en) | 2011-07-19 | 2011-07-19 | Prepressing counter-force frame device of model 0 block support frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202552450U CN202164552U (en) | 2011-07-19 | 2011-07-19 | Prepressing counter-force frame device of model 0 block support frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202164552U true CN202164552U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202552450U Expired - Fee Related CN202164552U (en) | 2011-07-19 | 2011-07-19 | Prepressing counter-force frame device of model 0 block support frame |
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| CN (1) | CN202164552U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063510A (en) * | 2012-12-29 | 2013-04-24 | 青建集团股份公司 | Loading device for template supporting systems |
| CN103358366A (en) * | 2013-07-30 | 2013-10-23 | 苏州香山工坊营造工程有限公司 | Laminated plate laminwood processing auxiliary tool |
| CN103498425A (en) * | 2013-09-25 | 2014-01-08 | 中铁五局集团第一工程有限责任公司 | Full-dismounting combination type multifunctional bracket supporting structure and construction method thereof |
| CN106087765A (en) * | 2016-08-10 | 2016-11-09 | 中交公局海威工程建设有限公司 | High pier pier top Cast-in-place concrete bracket precompressed charger |
| 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 |
| CN109235267A (en) * | 2018-09-28 | 2019-01-18 | 东莞理工学院 | A kind of construction method of king-post overarm brace precompressed |
| CN109252448A (en) * | 2018-09-28 | 2019-01-22 | 东莞理工学院 | A kind of precompressed construction method of bridge king-post overarm brace |
-
2011
- 2011-07-19 CN CN2011202552450U patent/CN202164552U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063510A (en) * | 2012-12-29 | 2013-04-24 | 青建集团股份公司 | Loading device for template supporting systems |
| CN103358366A (en) * | 2013-07-30 | 2013-10-23 | 苏州香山工坊营造工程有限公司 | Laminated plate laminwood processing auxiliary tool |
| CN103498425A (en) * | 2013-09-25 | 2014-01-08 | 中铁五局集团第一工程有限责任公司 | Full-dismounting combination type multifunctional bracket supporting structure and construction method thereof |
| CN103498425B (en) * | 2013-09-25 | 2015-08-05 | 中铁五局集团第一工程有限责任公司 | One completely knocks down multifunctional assembled bearing bracket structure and construction method thereof |
| CN106087765A (en) * | 2016-08-10 | 2016-11-09 | 中交公局海威工程建设有限公司 | High pier pier top Cast-in-place concrete bracket precompressed charger |
| 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 |
| CN109235267A (en) * | 2018-09-28 | 2019-01-18 | 东莞理工学院 | A kind of construction method of king-post overarm brace precompressed |
| CN109252448A (en) * | 2018-09-28 | 2019-01-22 | 东莞理工学院 | A kind of precompressed construction method of bridge king-post overarm brace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20200719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |