CN202247681U - Layered construction device for railway bridge piers - Google Patents
Layered construction device for railway bridge piers Download PDFInfo
- Publication number
- CN202247681U CN202247681U CN2011201418276U CN201120141827U CN202247681U CN 202247681 U CN202247681 U CN 202247681U CN 2011201418276 U CN2011201418276 U CN 2011201418276U CN 201120141827 U CN201120141827 U CN 201120141827U CN 202247681 U CN202247681 U CN 202247681U
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Abstract
The utility model discloses a layered construction device for railway bridge piers, composed of a steel bar (5), channel steel (7), a high-strength thread steel opposite-pulling rod (6), a steel tube support frame (8) and a prefabricated tray bottom pier body template, wherein the steel bar and the high-strength thread steel opposite-pulling rod are inserted in reserved holes on a pier body; the channel steel is disposed outside the pier body and fixedly connected with the steel bar; a connection hole is disposed on the channel steel at a part corresponding to the high-strength thread steel opposite-pulling rod; the both ends of the high-strength thread steel opposite-pulling rod penetrate connection holes on the channel steel and then contact and connect the channel steel with the pier surface of the pier body after being connected via a nut; the prefabricated tray bottom pier body template is supported and fixed by the channel steel; and the steel tube support frame is supported and fixed by the lengthened channel steel or ground. The turnover and utilization of the template can be accelerated, construction period can be shortened and construction cost can be decreased; simultaneously, construction quality can be improved, and the occurrence probability of safety accidents can be decreased.
Description
Technical field
The utility model belongs to railway bridge pier technical field, and what relate generally to is a kind of railway bridge pier construction in layer device.
Background technology
Mostly the bridge pier of known electric railway multiple line bridge is nose circle shape solid pier; Comprise pier shaft, pallet and top hat cone plate, bearing pad stone and contact net basis; It is high 2 meters that the pier shaft of this nose circle shape solid pier need adopt bulk pin-connected panel external mold set shaped steel formwork construction, external mold to be generally every joint, by template framework, stiffening rib support fixation; Template framework, stiffening rib adopt section steel manufacture, and stiffening rib adopts band steel to make.At present, corresponding with it job practices commonly used has following two kinds:
First method is to pour into a mould at twice; Treat the completion of pier shaft reinforcing bar binding, template assembly and reinforce good after, beginning is the pier shaft concrete pouring for the first time, when concreting to from 0.9～1 meter of tray bottom the time; Suspension of works; With pier shaft and pallet connect a batch reinforcing bar, pallet mask reinforcing bar (on-the-spot colligation is in advance accomplished) hangs in the template with crane, the pallet reinforcing bar exceeds the pier shaft template part to be fixed with steel pipe support, in 45 minutes, accomplishes pallet laid reinforcement binding adjustment work at the latest; Continue cast pier shaft concrete then, stop cast when being poured into 0.3～0.5 meter of tray bottom.Pier shaft and pallet connect a batch reinforcing bar, pallet mask reinforcing bar and from reinforcing bar, pass with the pier shaft scaffold with steel pipe and be connected with fastener, and with iron wire that reinforcing bar and steel pipe colligation is firm, reinforcing bar moves when preventing concrete perfusion.Steel pipe is set to: by along the bridge, along laterally per 3 meter one of pier shaft, 3 roads are set altogether.Concreting is to 0.3～0.5 meter away from tray bottom getting final product be.After the concrete pouring 24 hours, 3 road steel pipes of dismountable firm pallet reinforcing bar.After concrete reaches the 3 day length of time, remove bottom pier shaft template, reserve pallet bottom one joint template, beginning assembly unit pallet, top hat cone plate and contact net foundation forms.When assembly unit pallet template, straightway is installed earlier, back dress arc section, manual work cooperates the crane assembly unit.If template screens phenomenon occurs, can artificial suitably adjustment reinforcement location.When cast pallet, top hat cone plate, contact net base concrete; When at the bottom of the hat cone plate of concreting to top; Suspension of works; Top hat cone slab muscle, pinner reinforcing bar, contact net reinforcement foundation (on-the-spot colligation is in advance accomplished) and all built-in fittings (hanging basket fence bolt etc.) are hung in the template with crane, require in 45 minutes artificial adjustment, welding to accomplish, with the overhead contact built-in bolt after-pouring concrete of adjusting to the right place.After the 3 day length of time, remove side template, the contact net foundation forms treats that concrete strength reaches 75% o'clock of design and can remove.Plastic sheeting is wrapped up in lid, artificial watering maintenance.
Second method and first method are similar, just when the pier shaft template is installed, in the lump pier shaft top (pallet and top hat cone plate) template are pressed dress, can reduce the used time of template secondary installing.According to design drawing; Consideration is set up internal frame in the installation of pier shaft template and after reinforcing in pier shaft inside; Colligation pallet mask muscle and pier shaft and pallet connect a batch position reinforcing bar, and fluid concrete after accomplishing is when at the bottom of the hat cone plate of concreting to top; Suspension of works; Top hat cone slab muscle, pinner reinforcing bar, contact net reinforcement foundation (on-the-spot colligation is in advance accomplished) and all built-in fittings (hanging basket fence bolt etc.) are hung in the template with crane, require in 45 minutes artificial adjustment, welding to accomplish, with the overhead contact built-in bolt after-pouring concrete of adjusting to the right place.
First method can be removed pier shaft bottom template in advance; Reduce pallet, the installation of top hat cone template die plate and reinforcing bar binding and use the time; Can have enough to meet the need once in pier shaft bottom template 7-9 days, pallet and top hat cone template die plate then need be according to the 16 days lifting times spent or the more time turnovers of concrete strength.But, adopt this method need consider that need leave one at Dun Ding saves in the template of support pier body, because of template configuration is 2 meters high, install to be difficult to again after the dismounting template is fitted like a glove, stay the template seam easily, can cause situation such as the pier shaft bottom is contaminated when building.Need increase construction cost in addition, the one, need to make pier shaft template under the joint pallet, the 2nd, pier shaft connects batch position need increase the more batch position reinforcing bar that connects according to the requirement of railway bridge gauge.
Second method can save time, reduce construction cost, can have enough to meet the need template one time in the fastest 9 days, and human and material resources are made full use of.But, adopt this method that some adverse effects are arranged: the one, it is higher that template is installed, and formwork reinforcement not firm or upper load in bottom adds conference makes pier shaft template unstability, causes security incident easily; The 2nd, in 45 minutes, just the pallet top hat cone slab muscle of colligation moulding is hung in Dun Ding before the concrete initial set, it is pressed for time, the bottom concrete does not solidify again fully, to tissue in the construction and cooperate strictly, very easily causes security incident.
Summary of the invention
To the problems referred to above, the purpose of the utility model is to provide a kind of railway bridge pier construction in layer device.Can accelerate the template turnover and use, shorten the construction period, reduce construction cost, simultaneously, can improve construction quality, reduce the probability that security incident takes place.
The utility model realizes that the technical scheme that above-mentioned purpose is taked is: it is made up of pier shaft template under pull bar, steel pipe bracing frame, the prefabricated tray bottom rod iron, channel-section steel, high-strength screw-thread steel; Rod iron, high-strength screw-thread steel insert in the preformed hole of pier shaft respectively to pull bar; Channel-section steel is arranged on outside the pier shaft and is fixedly connected with rod iron; At the corresponding pier shaft high-strength screw-thread steel of channel-section steel the pull bar position is provided with connecting hole, after high-strength screw-thread steel passes connecting hole on the channel-section steel respectively and connected by nut the two ends of pull bar channel-section steel is contacted with the pier face of pier shaft and be connected; The pier shaft template is by the channel-section steel support fixation under the prefabricated tray bottom; The steel pipe bracing frame is fixed by the channel-section steel or the ground supports of elongated portion.
The utility model construction has utilized the support force of new-old concrete frictional force and pre-buried rod iron that pier shaft template and pallet top hat cone template die plate are separated, and makes the pier shaft template can have enough to meet the need flexibly, make full use of, and guarantees that the pier shaft concrete appearance is attractive in appearance.The utility model job practices is compared with existing job practices one; Adopt the utility model job practices, pier shaft bottom template can be had enough to meet the need once in per six days, and the pallet and the top hat cone template die plate Ninth Heaven can have enough to meet the need once; The pier shaft bottom separates with pallet top hat cone plate builds, and has shortened the construction period greatly.The utility model job practices is compared with existing job practices two, adopts the utility model job practices a small amount of pier shaft template that need increase consumption, channel-section steel and rod iron bracing frame, but can practice thrift the engineering time, and reduced the probability that security incident takes place.
Description of drawings
Fig. 1 is the utility model pier shaft side schematic view;
Fig. 2 is the utility model pier shaft elevational schematic view;
Fig. 3 is the utility model pier shaft floor map;
Fig. 4 is the low pier shaft elevational schematic view of the utility model;
Fig. 5 is the utility model railway bridge pier construction in layer method process chart.
Among the figure: 1, pier shaft; 2, pallet; 3, top hat cone plate; 4, the position of pier shaft concreting for the first time; 5, rod iron; 6, high-strength screw-thread steel is to pull bar; 7, channel-section steel; 8, steel pipe bracing frame; 9, pier shaft template under the tray bottom.
The specific embodiment
In conjunction with accompanying drawing, the embodiment that provides the utility model is following.
Like Fig. 1-3, shown in 5; A kind of railway bridge pier construction in layer device comprises that rod iron 5, channel-section steel 7, high-strength screw-thread steel are to pier shaft template under pull bar 6, steel pipe bracing frame 8, the prefabricated tray bottom; Rod iron 5, high-strength screw-thread steel insert in the preformed hole of bridge pier pier shaft 1 respectively to pull bar 6; Channel-section steel 7 is arranged on outside the pier shaft 1 and is fixedly connected with rod iron 5; At channel-section steel 7 corresponding pier shaft high-strength screw-thread steels pull bar 6 positions are provided with connecting hole, after high-strength screw-thread steel passes connecting hole on the channel-section steel respectively and connected by nut the two ends of pull bar 6 channel-section steel are contacted with the pier face of pier shaft 1 and be connected; The pier shaft template is by channel-section steel 7 support fixation under the prefabricated tray bottom; Steel pipe bracing frame 8 is by channel-section steel 7 support fixation of elongated portion.
As shown in Figure 4: when the bridge pier height is low, and the original ground bearing strength be can satisfy the stencil design force request time, and channel-section steel 7 combines the site operation situation suitably to shorten, and steel pipe bracing frame 8 can directly be supported in original ground.
Claims (1)
1. railway bridge pier construction in layer device; Comprise that pier shaft (1) is characterized in that: it is made up of pier shaft template under pull bar (6), steel pipe bracing frame (8), the prefabricated tray bottom rod iron (5), channel-section steel (7), high-strength screw-thread steel; Rod iron, high-strength screw-thread steel insert in the preformed hole of pier shaft respectively to pull bar; Channel-section steel is arranged on outside the pier shaft and is fixedly connected with rod iron; At the corresponding pier shaft high-strength screw-thread steel of channel-section steel the pull bar position is provided with connecting hole, after high-strength screw-thread steel passes connecting hole on the channel-section steel respectively and connected by nut the two ends of pull bar channel-section steel is contacted with the pier face of pier shaft and be connected; The pier shaft template is by the channel-section steel support fixation under the prefabricated tray bottom; The steel pipe bracing frame is fixed by the channel-section steel or the ground supports of elongated portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201418276U CN202247681U (en) | 2011-05-06 | 2011-05-06 | Layered construction device for railway bridge piers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201418276U CN202247681U (en) | 2011-05-06 | 2011-05-06 | Layered construction device for railway bridge piers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247681U true CN202247681U (en) | 2012-05-30 |
Family
ID=46108943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201418276U Expired - Fee Related CN202247681U (en) | 2011-05-06 | 2011-05-06 | Layered construction device for railway bridge piers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251481A (en) * | 2011-05-06 | 2011-11-23 | 中铁七局集团第一工程有限公司 | Railway pier layered construction method and construction device |
| CN103510469A (en) * | 2012-06-28 | 2014-01-15 | 中铁二十五局集团建筑安装工程有限公司 | Construction method for manufacturing thin-walled hollow pier |
-
2011
- 2011-05-06 CN CN2011201418276U patent/CN202247681U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251481A (en) * | 2011-05-06 | 2011-11-23 | 中铁七局集团第一工程有限公司 | Railway pier layered construction method and construction device |
| CN103510469A (en) * | 2012-06-28 | 2014-01-15 | 中铁二十五局集团建筑安装工程有限公司 | Construction method for manufacturing thin-walled hollow pier |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170506 |