CN201695337U - Straight-line segment bracket of side pier of grouting continuous beam - Google Patents
Straight-line segment bracket of side pier of grouting continuous beam Download PDFInfo
- Publication number
- CN201695337U CN201695337U CN2010201404137U CN201020140413U CN201695337U CN 201695337 U CN201695337 U CN 201695337U CN 2010201404137 U CN2010201404137 U CN 2010201404137U CN 201020140413 U CN201020140413 U CN 201020140413U CN 201695337 U CN201695337 U CN 201695337U
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- hinge support
- pier
- lower hinge
- bridge pier
- base plate
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Abstract
The utility model discloses a straight segment bracket of a side pier of a grouting continuous beam. The bracket comprises four upper hinge support seats and four lower hinge support seats respectively arranged at the upper part and the lower part of the pier body of the bridge pier; each hinge support seat comprises a base plate connected with the pier body of the bridge pier; two reinforcing plates with front pin holes and back pin holes are connected with the base plate; first pin shafts and second pin shafts are respectively connected in the front and the back pin holes of the two reinforcing plates; the base plates of the first and the third upper hinge support seats, the base plates of the first and the third lower hinge support seats, the base plates of the second and the fourth upper hinge support seats, and the base plates of the second and the fourth lower hinge support seats are respectively connected with the pier body of the bridge pier through twisted steels passing through the pier body of the bridge pier; four first pin shafts of the upper hinge support seats are respectively hinged with ends of four upper horizontal rods; the other ends of the four upper horizontal rods are respectively hinged with ends of four inclined brace rods through the second pin shafts; and the other ends of the four inclined brace rods are respectively hinged with four pin shafts of the lower hinge support seats. The bracket is applicable to the construction of the straight-line segment of the side pier of the continuous beam under the circumstances that the pier is high, the geological conditions are poor and the bridge pier is positioned in water.
Description
Technical field
The utility model relates to a kind of carriage, relates in particular to the side block straight-line segment of cantilever-concreting continuous beam carriage.
Background technology
When prestressed concrete continuous beam end bay straightway is constructed, adopt the floor stand construction method usually, promptly adopt steel pipe scaffold or helix tube and i iron to form the post and beam support.Adopt above-mentioned rack construction to reinforce to ground, and along with the increase of pier shaft height, difficulty of construction and engineering quantity also strengthen thereupon, especially under pier shaft height superelevation, bridge pier is in the water and foundation condition is relatively poor situation, adopt said method sharply to strengthen difficulty of construction, increase construction cost.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, provide a kind of and can be in the construction of the medium continuous beam abutment pier of water straightway at pier height, geological conditions difference and bridge pier, and can accelerating construction progress, reduce the side block straight-line segment of cantilever-concreting continuous beam carriage that construction cost improves construction quality.
The technical scheme that the utility model is dealt with problems is:
The side block straight-line segment of cantilever-concreting continuous beam carriage, it comprises four upper hinge supports and four lower hinge supports that are separately positioned on bridge pier pier shaft upper and lower, on in described four upper hinge supports and four lower hinge supports first and second, lower hinge support is arranged on the left side and third and fourth of shaft section in the bridge pier pier shaft, lower hinge support respectively with the one or two on, the right side that is arranged on shaft section in the bridge pier pier shaft of lower hinge support symmetry, on described first to fourth, lower hinge support comprises base plate separately, on described base plate, be connected with two stiffeners that are set parallel to each other and have first pin-and-hole on it, in first pin-and-hole of described two stiffeners, be connected with first bearing pin.Described first and the base plate of the 3rd upper hinge support between, described first and the base plate of the 3rd lower hinge support between, described second and the base plate of the 4th upper hinge support between and described second and the base plate of the 4th lower hinge support between be connected on the described bridge pier pier shaft by the indented bars that passes the bridge pier pier shaft separately.Four first bearing pins of upper hinge support are hinged and connected with four horizontally disposed ends of flat bar separately, described four other ends of going up flat bar are hinged and connected by an end of second pivot pin and four hounds separately, four first bearing pins of the other end of described four hounds and lower hinge support are hinged and connected separately, between two hounds in bridge pier pier shaft left side, between two hounds on bridge pier pier shaft right side, link to each other by cross binding separately between two horizon bars between two horizon bars in bridge pier pier shaft left side and bridge pier pier shaft right side.
Compared with prior art, the utlity model has following remarkable advantage:
1. adopt the floor stand construction, because end bay straight line segment length, material usage and the peace amount of tearing open are big and the construction period is longer; And adopt the carriage construction, and do not need to do ground to handle, and carriage can be in advance in processing space processing, simple, convenient, thus can accelerating construction progress.
2. carriage can adopt the shaped steel group welding piece, and member is reusable, and reduces the ground disposal cost, can reduce construction cost.
3. when the bridge pier place unfavorable geology is arranged, perhaps pier shaft is higher, and when adopting the support method, the construction safety coefficient is low, and difficulty of construction is bigger; And adopt the construction of carriage method, then can reduce difficulty of construction.
Description of drawings
Fig. 1 is a side block straight-line segment of cantilever-concreting continuous beam carrier structure front view of the present utility model;
Fig. 2 is the vertical view of carriage shown in Figure 1;
Fig. 3 is the structural front view of hinged-support shown in Figure 1;
Fig. 4 is the left view of hinged-support shown in Figure 3.
The specific embodiment
Below in conjunction with accompanying drawing and example, the specific embodiment, structure, feature and effect thereof to foundation the utility model provides are described in detail as follows.
Side block straight-line segment of cantilever-concreting continuous beam carriage as Figure 1-3, it comprises four upper hinge supports 2 and four lower hinge supports 3 that are separately positioned on bridge pier pier shaft 1 upper and lower, on in described four upper hinge supports and four lower hinge supports first and second, lower hinge support is arranged on the left side and third and fourth of shaft section in the bridge pier pier shaft, lower hinge support respectively with the one or two on, the right side that is arranged on shaft section in the bridge pier pier shaft of lower hinge support symmetry, on described first to fourth, lower hinge support comprises base plate 4 separately, on described base plate 4, be connected with two stiffeners 6 that are set parallel to each other and have first pin-and-hole 5 on it, in first pin-and-hole of described two stiffeners, be connected with first bearing pin, described first and the base plate of the 3rd upper hinge support between, described first and the base plate of the 3rd lower hinge support between, described second and the base plate of the 4th upper hinge support between and described second and the base plate of the 4th lower hinge support between be connected on the described bridge pier pier shaft by the indented bars 7 that passes the bridge pier pier shaft separately, four first bearing pins of upper hinge support are hinged and connected with four horizontally disposed ends of flat bar separately, described four other ends of going up flat bar 8 are hinged and connected by an end of second pivot pin and four hounds 9 separately, and four first bearing pins of the other end of described four hounds and lower hinge support are hinged and connected separately.Between two hounds 9 in bridge pier pier shaft left side, between two hounds on bridge pier pier shaft right side, link to each other by cross binding 10 separately between two horizon bars between two horizon bars in bridge pier pier shaft left side and bridge pier pier shaft right side.
Between the base plate of lower hinge support on described first to fourth and bridge pier pier shaft, rubber tile is installed preferably.
The installation and application of this carriage is as follows:
(1) according to end bay straightway box girder segment length and condition of construction, determines working load, adopt permissible stress method design carriage.To guarantee during design that each member of carriage and bulk strength, rigidity and stability all satisfy construction requirement.
(2) when building the bridge pier concrete, at each hinged-support place service sleeve of carriage, the slightly larger in diameter of sleeve pipe is in the diameter of finish rolling deformed bar, so that indented bars passes smoothly.In order to increase the vertical frictional force of hinged-support and pier shaft, pier cap, can between hinged-support and pier shaft, add rubber tile, the pre-buried finish rolling deformed bar of stretch-draw pier shaft applies prestressing force to hinged-support is installed then.
(3) utilize mobile crane, hoist engine or each rod member of bottle gouard moved by hands installation bracket, first assembly unit main couple, and then connect cross binding.
(4) after the carriage installation, carry out the carriage precompressed.Precompressed can be adopted on the support preloading or utilize jack, by the pier embedded bar carriage is applied pretension, to eliminate the inelastic deformation of carriage, draws the elastic deformation value of carriage, and the value of raising provides foundation for the straightway bed die is provided with in advance.Prefabricating load should be less than 1.2 times of straightway weight concrete, and adopt the mode that loads step by step.Squeeze time must not be less than 24h.
(5) after precompressed is finished, after construction requirement is satisfied in check, straight-line segment template is installed, assembling reinforcement, and carry out counterweight according to the weight of template and reinforcing bar, counterweight can adopt jack tension or in the mode of the opposite side preloading of bridge pier straightway.
(6) during concreting, according to concrete speed of perfusion, the known reinforcing bar of preloading weight on the opposite side carriage also can adopt the mode of the downward stretch-draw of jack.Level gauge is measured the variation of straightway absolute altitude simultaneously, instructs counterweight.
(7) after end bay closes up, treat that prestressed stretch-draw and hole path pressure grouting are finished after, carry out carriage counter-force unloading, then removal bracket.Indented bars in the bridge pier embedded steel tube is taken out, inject cement paste, guarantee the bridge pier quality.
Claims (2)
1. side block straight-line segment of cantilever-concreting continuous beam carriage, it is characterized in that: it comprises four upper hinge supports and four lower hinge supports that are separately positioned on bridge pier pier shaft upper and lower, on in described four upper hinge supports and four lower hinge supports first and second, lower hinge support is arranged on the left side and third and fourth of shaft section in the bridge pier pier shaft, lower hinge support respectively with the one or two on, the right side that is arranged on shaft section in the bridge pier pier shaft of lower hinge support symmetry, on described first to fourth, lower hinge support comprises base plate separately, on described base plate, be connected with two stiffeners that are set parallel to each other and have first pin-and-hole on it, in first pin-and-hole of described two stiffeners, be connected with first bearing pin, described first and the base plate of the 3rd upper hinge support between, described first and the base plate of the 3rd lower hinge support between, described second and the base plate of the 4th upper hinge support between and described second and the base plate of the 4th lower hinge support between be connected on the described bridge pier pier shaft by the indented bars that passes the bridge pier pier shaft separately, four first bearing pins of upper hinge support are hinged and connected with four horizontally disposed ends of flat bar separately, second pivot pin of this end and an end of four hounds are hinged and connected described four other ends of going up flat bars by connecting thereon separately, four first bearing pins of the other end of described four hounds and lower hinge support are hinged and connected separately, between two hounds in bridge pier pier shaft left side, between two hounds on bridge pier pier shaft right side, link to each other by cross binding separately between two horizon bars in bridge pier pier shaft left side and between two horizon bars on bridge pier pier shaft right side.
2. side block straight-line segment of cantilever-concreting continuous beam carriage according to claim 1 is characterized in that: between the base plate of lower hinge support on described first to fourth and bridge pier pier shaft rubber tile is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201404137U CN201695337U (en) | 2010-03-25 | 2010-03-25 | Straight-line segment bracket of side pier of grouting continuous beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201404137U CN201695337U (en) | 2010-03-25 | 2010-03-25 | Straight-line segment bracket of side pier of grouting continuous beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695337U true CN201695337U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201404137U Expired - Fee Related CN201695337U (en) | 2010-03-25 | 2010-03-25 | Straight-line segment bracket of side pier of grouting continuous beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695337U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535339A (en) * | 2011-12-07 | 2012-07-04 | 中铁十九局集团第七工程有限公司 | Bracket for thin-wall hollow high-pier cantilever perfusing continuous beam and constructing method thereof |
| CN102704409A (en) * | 2012-06-28 | 2012-10-03 | 中铁十三局集团第一工程有限公司 | Shelf bracket |
| CN102953344A (en) * | 2012-12-12 | 2013-03-06 | 广东省长大公路工程有限公司 | Climbing cone type triangular cantilever bracket |
| CN107905124A (en) * | 2017-11-30 | 2018-04-13 | 中铁二十局集团有限公司 | A kind of symmetrical expression rigid frame-continuous girder construction technology |
-
2010
- 2010-03-25 CN CN2010201404137U patent/CN201695337U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535339A (en) * | 2011-12-07 | 2012-07-04 | 中铁十九局集团第七工程有限公司 | Bracket for thin-wall hollow high-pier cantilever perfusing continuous beam and constructing method thereof |
| CN102704409A (en) * | 2012-06-28 | 2012-10-03 | 中铁十三局集团第一工程有限公司 | Shelf bracket |
| CN102953344A (en) * | 2012-12-12 | 2013-03-06 | 广东省长大公路工程有限公司 | Climbing cone type triangular cantilever bracket |
| CN107905124A (en) * | 2017-11-30 | 2018-04-13 | 中铁二十局集团有限公司 | A kind of symmetrical expression rigid frame-continuous girder construction technology |
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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: 20110105 Termination date: 20150325 |
|
| EXPY | Termination of patent right or utility model |