CN101440604B - Cable opposite pulling type pier-side bracket - Google Patents
Cable opposite pulling type pier-side bracket Download PDFInfo
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- CN101440604B CN101440604B CN2008101880484A CN200810188048A CN101440604B CN 101440604 B CN101440604 B CN 101440604B CN 2008101880484 A CN2008101880484 A CN 2008101880484A CN 200810188048 A CN200810188048 A CN 200810188048A CN 101440604 B CN101440604 B CN 101440604B
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- knighthead
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- side bracket
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Abstract
The invention discloses a cable opposite-pulling type pier side bracket and relates to a bearing system for the construction of an upper part structure of a bridge. The cable opposite-pulling type pier side bracket comprises four parts of an upper platform, an opposite pulling system, an inclined strut and a lower anchor ear; the upper platform comprises long carlings arranged in bilateral symmetry; the outer side of each long carlings is provided with two crossbeams in parallel arrangement; a plurality of short carlings are arranged between the crossbeams; a bracing A is arranged between two adjacent short carlings; a bracing B is arranged between the short carling and the long carling; the opposite-pulling system comprises two parallel cables in parallel arrangement; two ends of each parallel cable are fixedly connected with the long carling respectively through an anchor device; the lower anchor ear is arranged on the lower part of the upper platform and comprises anchor ears matched with the contour of the pier body and are arranged in bilateral symmetry; each anchor ear is tightly stuck with the pier body through oppositely pulling a fine rolled screw rebar pull rod; the inclined strut comprise a plurality of supporting diagonal rods; and two ends of each supporting diagonal rod are fixedly connected with the crossbeam and the anchor ear respectively. The cable opposite-pulling type pier side bracket has the advantages of simple structure, low cost, strong bearing and loading capacity, small deformation, convenient mounting, and no damage to a main body structure.
Description
Technical field
The present invention relates to the used supporting system of bridge superstructure construction, a kind of specifically cable wire is to the pulling type pier side bracket.
Background technology
Along with the paces of domestic high-grade highway and railway construction are constantly accelerated, the application that is used for the mobile formwork of bridge construction and bridge formation machine also more and more widely.Pier-side bracket is as the load supporting system of mobile formwork or bridge formation machine, and its security reliability is to guarantee the key of bridge construction safety.
Pier-side bracket to pull-up structure at present domestic general employing girder steel, steel band or finish rolling deformed bar, exist inconvenience be installed for the former (girder steel, steel band) drawing, bracket deformation is big, easily takes place defectives such as pull-up structure fracture; For the latter (finish rolling deformed bar), then cause big when big or carriage hron spacing is big when load to pulling force, shortcomings such as the quantity of required finish rolling deformed bar is many, and the tension operation flow process is complicated, the layout of reinforcing bar and guarantee every reinforcing bar evenly stressed all compare difficult.
The employing mode of grooved bore or pre-buried steel member on pier shaft of getting in touch of existing pier-side bracket and pier shaft is connected, and this form of structure stays source of corrosion easily to waters, bay bridge construction, and is huge to the outward appearance and the durability influence of structure.
Summary of the invention
At the defective that exists in the prior art, the object of the present invention is to provide a kind of cable wire to the pulling type pier side bracket, simple in structure, with low cost, the bearing load ability is strong, is out of shape for a short time, and fitting operation is convenient and do not injure agent structure.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of cable wire is to the pulling type pier side bracket, it is characterized in that: comprise upper mounting plate, pull system, diagonal brace, anchor ear four parts down, said upper mounting plate be included in pier shaft 10 left and right sides symmetrically arranged, with the adaptive long longeron 102 of pier shaft profile, the lateral surface of long longeron 102 respectively is provided with two crossbeams that be arranged in parallel 101, be provided with some carlings 103 between the crossbeam 101,103 adjacent of two carlings are provided with bracing A104, and 102 of carling 103 and long longerons are provided with bracing B105; Said pull system being comprised two parallel cable wires 202 that be arranged in parallel, fixedlys connected with long longeron 102 by ground tackle 201 respectively in parallel cable wire 202 two ends; Said down anchor ear is arranged on the below of upper mounting plate, comprises and pier shaft profile anchor ear 401 adaptive, that be symmetrical set, and anchor ear 401 draws by 402 pairs on finish rolling deformed bar pull bar and makes itself and pier shaft closely connected; Said diagonal brace comprises some knightheads, fixedly connected with anchor ear 401 with crossbeam 101 respectively in the two ends of knighthead, described some knightheads comprise successively from outside to inside be symmetrical set in order to transmit the outer knighthead 301 of main upper load, in order to the middle knighthead 302 that transmits main upper load and in order to prevent upper mounting plate along the pier shaft inclined plane the interior knighthead 303 to lower slider, outer knighthead 301 two ends are respectively by bearing pin A304 and crossbeam 101 outboard end bottom surfaces, anchor ear 401 outer top surface are fixedly connected, middle knighthead 302 two ends are respectively by bearing pin A304 and bottom surface, crossbeam 101 middle part, anchor ear 401 inboard end faces are fixedly connected, and interior knighthead 303 two ends are respectively by bearing pin B305 and crossbeam 101 medial end bottom surfaces, anchor ear 401 middle top surface are fixedly connected.
On the basis of technique scheme, parallel cable wire 202 usefulness jack tensions apply prestressing force to increase the frictional force between long longeron 102 and the pier shaft, and finish rolling deformed bar pull bar 402 usefulness jack tensions apply prestressing force to increase the frictional force between anchor ear 401 and the pier shaft.
On the basis of technique scheme, 10 of long longeron 102 and pier shafts are provided with the hard rubber pad, and 10 of anchor ear 401 and pier shafts are provided with the hard rubber pad.
Cable wire of the present invention is to the pulling type pier side bracket, and is simple in structure, with low cost, and the bearing load ability is strong, is out of shape for a short time, and fitting operation is convenient and do not injure agent structure.With cable wire as carriage to drawing force structure, under the situation that does not injure agent structure, load is passed to the pier shaft structure reliably.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 cable wire is to the positive facade arrangement diagram of pulling type pier side bracket
Fig. 2 upper mounting plate and cable wire are to the pull system layout plan
Anchor ear layout plan under Fig. 3
Fig. 4 cable wire is to pulling type pier side bracket side elevation arrangement diagram
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, bridge pier pier shaft 10 lower ends are cushion cap 20, the said cable wire of the present invention to the pulling type pier side bracket comprise upper mounting plate, to pull system, diagonal brace, anchor ear four parts down.Shown in Fig. 1,2,3,4, said upper mounting plate be included in pier shaft 10 left and right sides symmetrically arranged, with the adaptive long longeron 102 of pier shaft profile, the lateral surface of long longeron 102 respectively is provided with two crossbeams that be arranged in parallel 101, be provided with some carlings 103 between the crossbeam 101,103 adjacent of two carlings are provided with bracing A104, and 102 of carling 103 and long longerons are provided with bracing B105; Said pull system being comprised two parallel cable wires 202 that be arranged in parallel, fixedlys connected with long longeron 102 by ground tackle 201 respectively in parallel cable wire 202 two ends; Said down anchor ear is arranged on the below of upper mounting plate, comprises and pier shaft profile anchor ear 401 adaptive, that be symmetrical set, and anchor ear 401 draws by 402 pairs on finish rolling deformed bar pull bar and makes itself and pier shaft closely connected; Said diagonal brace comprises some knightheads, fixedly connected with anchor ear 401 with crossbeam 101 respectively in the two ends of knighthead, described some knightheads comprise successively from outside to inside be symmetrical set in order to transmit the outer knighthead 301 of main upper load, in order to the middle knighthead 302 that transmits main upper load and in order to prevent upper mounting plate along the pier shaft inclined plane the interior knighthead 303 to lower slider, outer knighthead 301 two ends are respectively by bearing pin A304 and crossbeam 101 outboard end bottom surfaces, anchor ear 401 outer top surface are fixedly connected, middle knighthead 302 two ends are respectively by bearing pin A304 and bottom surface, crossbeam 101 middle part, anchor ear 401 inboard end faces are fixedly connected, and interior knighthead 303 two ends are respectively by bearing pin B305 and crossbeam 101 medial end bottom surfaces, anchor ear 401 middle top surface are fixedly connected.
On the basis of technique scheme, fixedly connected with anchor ear 401 with crossbeam 101 respectively by bearing pin in the two ends of knighthead, is provided with some diagonal brace bracings 306 that are used for it is linked as integral body between knighthead.
On the basis of technique scheme, parallel cable wire 202 usefulness jack tensions apply prestressing force to increase the frictional force between long longeron 102 and the pier shaft, and finish rolling deformed bar pull bar 402 usefulness jack tensions apply prestressing force to increase the frictional force between anchor ear 401 and the pier shaft.
On the basis of technique scheme, 10 of long longeron 102 and pier shafts are provided with the hard rubber pad, and 10 of anchor ear 401 and pier shafts are provided with the hard rubber pad.
In the technique scheme, said crossbeam 101, carling 103 are the steel box-beam structure of steel plate welding, long longeron 102 is the box-girder of the imitative pier shaft profile of steel plate welding, be welded to each other between crossbeam 101, long longeron 102, the carling 103 and become the upper mounting plate framework, bracing A104 and bracing B105 are the shaped steel welding, are connected to integral body by gusset plate and upper mounting plate framework.The quantity of carling 103 is at least 2 usually, and the carling 103 among Fig. 2 is 2, and its quantity can increase according to actual needs.Said pull system is passed from the reservation anchor hole on long longeron 102 both sides, nut is installed, simultaneously two cable wires 202 are stretched to builder's tonnage with the stretch-draw jack is disposable, applied precompression between upper mounting plate and the pier shaft this moment, usually the parallel cable wire of finished product can provide the pretension of hundreds of tons and even kiloton, this pulling force belongs to internal force, can reduce the carrier structure size, and then makes that the pier-side bracket structure is light and handy, dismounting is quick.Said anchor ear 401 is the abnormally-structured of steel plate welding, its profile is according to the outline manufacturing of pier shaft, 402 pairs of pier shaft both sides, the back anchor ear 401 usefulness finish rolling deformed bars that are in place draw, make anchor ear 401 and pier shaft closely connected, can realize not injuring pier shaft like this and upper load can be passed to pier shaft equably, eliminate the influence of otch or built-in fitting permanent structure.Said diagonal brace comprises some knightheads, the concrete quantity of knighthead draws according to Force Calculation, according to different situations different methods to set up can be arranged, as Fig. 1, shown in 4 in the specific embodiment, said diagonal brace comprises the outer knighthead 301 that is symmetrical set from outside to inside successively, middle knighthead 302 and interior knighthead 303, outer knighthead 301 two ends are respectively by bearing pin A304 and crossbeam 101 outboard end bottom surfaces, anchor ear 401 outer top surface are fixedly connected, middle knighthead 302 two ends are respectively by bearing pin A304 and bottom surface, crossbeam 101 middle part, anchor ear 401 inboard end faces are fixedly connected, and interior knighthead 303 two ends are respectively by bearing pin B305 and crossbeam 101 medial end bottom surfaces, anchor ear 401 middle top surface are fixedly connected.Its China and foreign countries' knighthead 301, middle knighthead 302 are the box-shaped rod members by the steel plate welding, in order to transmit main upper load; Interior knighthead 303 is shaped steel rod members, in order to prevent upper mounting plate along the pier shaft inclined plane to lower slider; Brace bracing 306 is the shaped steel welding, respectively with about outer knighthead 301, about middle knighthead 302 be linked as integral body.The concrete shape and structure of brace bracing 306 can be provided with as shown in Figure 4, also can implement by known technology.
On the basis of technique scheme, as shown in Figure 4, the thickness of outer knighthead 301 and middle knighthead 302 is identical and thicker than interior knighthead 303, interior knighthead 303 symmetries to be arranged on outer knighthead 301 and 302 of middle knightheads and deflection inboard.
After the installation of the present invention, upper load directly acts on the upper mounting plate end face, two groups of upper mounting plates of pier shaft both sides connect with equilibrium level power pull system by both sides, and diagonal brace is given anchor ear down with the Load Transfer of upper mounting plate, pass to pier shaft 10 and cushion cap 20 by following anchor ear again.Cable wire of the present invention adopts the finished product cable wire as to pull system to the pulling type pier side bracket, and stretch-draw is fast accurate, can provide bigger to pulling force, make carriage bear upper load after distortion less; The carriage bottom is not established built-in fitting and the following anchor ear closely connected with the cushion cap pier shaft is set, and upper load is passed to pier shaft and cushion cap equably.
The present invention is compared with existing technology, and its major advantage is: transmit the load mode difference: common carriage is at pier shaft built-in fitting to be set, and bears the mode of shearing by built-in fitting and transmits vertical load. The present invention does not establish the built-in fitting that can affect the pier shaft durability, by between upper mounting plate, high strength parallel steel wire rope and finish rolling screw thread bar reinforcement are set between the lower anchor ear, and with the mode of jack tension, apply powerful prestressing force, make the powerful frictional force of generation between upper mounting plate and lower anchor ear and the pier shaft, resist the vertical load that carriage bears. Can setting between upper mounting plate, lower anchor ear and the pier shaft contact-making surface and steel and concrete between the bigger material of coefficient of friction, such as the hard rubber pad, increasing the frictional force of contact-making surface, and then increase the bearing capacity of carriage.
Claims (3)
1. a cable wire is to the pulling type pier side bracket, it is characterized in that: comprise upper mounting plate, pull system, diagonal brace, anchor ear four parts down, said upper mounting plate be included in pier shaft (10) left and right sides symmetrically arranged, with the adaptive long longeron (102) of pier shaft profile, the lateral surface of long longeron (102) respectively is provided with two crossbeams that be arranged in parallel (101), be provided with some carlings (103) between the crossbeam (101), be provided with bracing A (104) between adjacent two carlings (103), be provided with bracing B (105) between carling (103) and long longeron (102); Said pull system being comprised two parallel cable wires (202) that be arranged in parallel, fixedlys connected with long longeron (102) by ground tackle (201) respectively in parallel cable wire (202) two ends; Said down anchor ear is arranged on the below of upper mounting plate, comprises and pier shaft profile anchor ear adaptive, that be symmetrical set (401), and anchor ear (401) makes itself and pier shaft closely connected by finish rolling deformed bar pull bar (402) to drawing; Said diagonal brace comprises some knightheads, fixedly connected with anchor ear (401) with crossbeam (101) respectively in the two ends of knighthead, described some knightheads comprise successively from outside to inside be symmetrical set in order to transmit the outer knighthead (301) of main upper load, in order to the middle knighthead (302) that transmits main upper load and in order to prevent upper mounting plate along the pier shaft inclined plane the interior knighthead (303) to lower slider, outer knighthead (301) two ends are respectively by bearing pin A (304) and crossbeam (101) outboard end bottom surface, anchor ear (401) outer top surface is fixedly connected, middle knighthead (302) two ends are respectively by bearing pin A (304) and bottom surface, crossbeam (101) middle part, the inboard end face of anchor ear (401) is fixedly connected, and interior knighthead (303) two ends are respectively by bearing pin B (305) and crossbeam (101) medial end bottom surface, anchor ear (401) middle top surface is fixedly connected.
2. cable wire as claimed in claim 1 is to the pulling type pier side bracket, it is characterized in that: parallel cable wire (202) applies prestressing force to increase the frictional force between long longeron (102) and the pier shaft with jack tension, and finish rolling deformed bar pull bar (402) applies prestressing force to increase the frictional force between anchor ear (401) and the pier shaft with jack tension.
3. cable wire as claimed in claim 1 or 2 is characterized in that the pulling type pier side bracket: be provided with the hard rubber pad between long longeron (102) and pier shaft (10), be provided with the hard rubber pad between anchor ear (401) and pier shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101880484A CN101440604B (en) | 2008-12-29 | 2008-12-29 | Cable opposite pulling type pier-side bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101880484A CN101440604B (en) | 2008-12-29 | 2008-12-29 | Cable opposite pulling type pier-side bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101440604A CN101440604A (en) | 2009-05-27 |
| CN101440604B true CN101440604B (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101880484A Active CN101440604B (en) | 2008-12-29 | 2008-12-29 | Cable opposite pulling type pier-side bracket |
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| CN (1) | CN101440604B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845794B (en) * | 2010-03-24 | 2012-12-12 | 中国十九冶集团有限公司 | Prestress prepressing method for 0# block construction bracket of rigid frame bridge and cable-stayed bridge |
| CN102392417B (en) * | 2011-11-26 | 2013-08-21 | 科达集团股份有限公司 | Dual-cantilever bearing support structure for large steel pipe and installation method |
| CN103132461B (en) * | 2011-12-01 | 2015-11-25 | 上海市基础工程集团有限公司 | For the flexible carrier device of steel truss beam bridge cantilever construction |
| 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 |
| CN103628416B (en) * | 2013-12-18 | 2016-06-29 | 中铁大桥局集团有限公司 | Stiffening girder of suspension bridge is to pulling type pier side bracket |
| CN103643638B (en) * | 2013-12-23 | 2015-09-23 | 中铁大桥局集团有限公司 | The system and method for flexible pier reassembling type lateral locking |
| CN103952983A (en) * | 2014-05-22 | 2014-07-30 | 中铁二院工程集团有限责任公司 | Portal type lifting station for erecting high-pier steel truss beam |
| CN104532758A (en) * | 2014-12-25 | 2015-04-22 | 浙江诚邦园林股份有限公司 | Construction support for pre-stress concrete suspension-poured continuous beam number zero segment |
| CN104790299B (en) * | 2015-05-11 | 2017-03-22 | 广东远大桥梁钢结构租赁有限公司 | Internal-span unsupported convenient construction support and method for bridge cast-in-place box beam |
| CN105951607A (en) * | 2016-07-06 | 2016-09-21 | 苏文藏 | Reinforced V-shaped bridge pier bracket |
| CN107401192B (en) * | 2017-07-03 | 2019-06-14 | 浙江省建筑设计研究院 | Load transfer device is vertically underpined after truncation for prestressing force circle concrete tubular pile |
| CN107542037B (en) * | 2017-09-28 | 2018-12-04 | 谢志坚 | A kind of supporting bracket of bridge construction |
| CN108978482A (en) * | 2018-08-23 | 2018-12-11 | 中国五冶集团有限公司 | The pin-connected panel support frame of circle pier capping beam is with its installation method |
| CN109706842A (en) * | 2019-01-23 | 2019-05-03 | 湖南路桥建设集团有限责任公司 | A kind of urban viaduct Single column pier capping beam construction device |
| CN110396915A (en) * | 2019-07-11 | 2019-11-01 | 重庆大学 | U-shaped Steel Thin-Wall-prestress reinforcement Combined concrete bent cap and thin wall steel tube concrete pier stud joint structure and construction technology |
| CN110593122B (en) * | 2019-10-10 | 2024-07-26 | 中国建筑第八工程局有限公司 | Pier top hanging frame and construction method thereof |
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2008
- 2008-12-29 CN CN2008101880484A patent/CN101440604B/en active Active
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| CN101440604A (en) | 2009-05-27 |
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Owner name: GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU Free format text: FORMER OWNER: CHINA ZHONGTIE MAJOR BRIDGE ENGINEERING CO., LTD. Effective date: 20150212 |
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Effective date of registration: 20150212 Address after: 430050 Hanyang Road, Hanyang District, Hubei, No. 38, No. Patentee after: Group Co., Ltd., Zhongtie Daqiao Bureau Address before: 430050 Hanyang Road, Hanyang District, Hubei, No. 38, No. Patentee before: China Zhongtie Major Bridge Engineering Co., Ltd. |