CN203768810U - Prefabricated bridge deck space steel pipe concrete truss combined beam - Google Patents
Prefabricated bridge deck space steel pipe concrete truss combined beam Download PDFInfo
- Publication number
- CN203768810U CN203768810U CN201420103242.9U CN201420103242U CN203768810U CN 203768810 U CN203768810 U CN 203768810U CN 201420103242 U CN201420103242 U CN 201420103242U CN 203768810 U CN203768810 U CN 203768810U
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- bridge
- steel pipe
- bridge deck
- truss
- steel
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Abstract
Provided is a prefabricated bridge deck space steel pipe concrete truss combined beam including a steel pipe truss, and the combined beam is characterized by further including a plurality of independent bridge decks, two positioning grooves correspondingly cooperated with two top steel pipes of the steel pipe truss are arranged in the lower end face of each bridge deck, the upper half parts of the top steel pipes and the positioning grooves form cambered-surface contact, a plurality of circular ear plates are welded on each top steel pipe, each circular ear plate is formed by an arc part tightly coating the lower half part of the corresponding top steel pipe and a plane part arranged at the two ends of the arc part, and the plane part at the two ends of each circular ear plate is fixedly connected with the corresponding bridge deck through a high-strength bolt and a nut. By adopting such a combined beam structure, the prefabrication of the bridge decks and the construction of the lower part structure of a bridge can be carried out at the same time, and after the steel pipe truss is installed, the prefabricated bridge decks can be installed one by one starting from the bridge head, so that a large amount of space work can be prevented, the construction period of the bridge is greatly shortened, the cost is reduced, the personnel safety during the construction is guaranteed, and the engineering quality is improved.
Description
Technical field
The utility model relates to Steel Space pipe concrete truss combination beams, particularly a kind of prefabricated bridge Steel Space pipe concrete truss combination beams.
Background technology
In bridge construction technical field, Steel Space pipe concrete truss combination beams is a kind of novel bridge structure, and the bridge of built this type of form of structure is as done lake grand bridge etc.This kind of bridge deadweight, with reducing by 50% left and right across footpath concrete simply supported beam, increasing bridge span ability simultaneously, also can reduce substructure engineering quantity, and therefore this bridge type has good development prospect.
Steel Space pipe concrete truss combination beams construction both at home and abroad at present, generally first adopt the methods such as dilatory, segmental hoisting to set up steel pipe truss, then Pumping concrete in string steel pipe up and down, reach after designing requirement until steel pipe inner concrete, support taking steel pipe truss as cast-in-place bridge deck template, a high position is set up bridge deck template, cast-in-site bridge deck.Adopt the method cast bridge deck, template is installed, pouring concrete all completes in high-altitude original position, and the duration is longer, and difficulty of construction is larger, and bridge deck construction quality is difficult for guarantee, and personal security and architecture quality exist very big hidden danger.
For reduction of erection time, guarantee bridge deck construction quality, also bridge deck can be poured into a mould before installation steel pipe truss, be that bridge deck are drawn together with steel pipe truss or lifting is set up, while adopting this kind of construction method, bridge deck will increase construction weight while installation, not high for bridge pier, temporary rest pier place can be set, can adopt the steel pipe truss of large tonnage crane segmental hoisting with bridge deck; Bridge pier is higher maybe can not temporary rest pier be set time, adopt crane segmental hoisting to realize, can only adopt dilatory setting up, now, bridge deck weight will produce very large internal force when structure is large cantilever in the dilatory erection process of structure, cause this structural system and construction method to realize, can only adopt and first set up steel pipe truss, the construct construction method of bridge deck again.
For Steel Space pipe concrete truss combination beams design feature, research and development new structure system and construction method, to widening this new structure place scope of application, reduction of erection time, guarantee work progress personal security and construction quality, have fine realistic meaning.
Summary of the invention
The utility model provides a kind of reduction difficulty of construction, improves bridge deck construction quality and reduction of erection time for solving the technical problem existing in known technology, improves the prefabricated bridge Steel Space pipe concrete truss combination beams of constructor's safety.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:
Prefabricated bridge Steel Space pipe concrete truss combination beams, comprise steel pipe truss, it is characterized in that: also comprise the independently bridge deck of polylith that are longitudinally laid in turn steel pipe truss top along bridge, on the lower surface of every bridge deck, be provided with two detents that coordinate one by one with two steel pipes that wind up of steel pipe truss, the first half of the steel pipe that winds up forms cambered surface with detent and contacts; Be welded with multiple annular otic placodes along pipe range direction at every on winding up steel pipe, each annular otic placode forms by packing tightly at the circular arc portion of the steel pipe the latter half of winding up and the planar section that is located at circular arc portion two ends, and the end flat part of annular otic placode is fixedly connected with the bridge deck of correspondence position by high-strength bolt and nut.
The utility model can also adopt following technical scheme:
Be welded with many group WELDING STUDS along pipe range direction at every on winding up steel pipe, on the bridge deck of correspondence position, be provided with reserving hole, every group of WELDING STUDS is inserted in the reserving hole of corresponding bridge deck, and WELDING STUDS is connected by the concrete being cast in reserving hole with corresponding bridge deck.
On a side end face of every bridge deck, be provided with shear connector, the correspondence position on opposite side end face is provided with jack, and adjacent bridge deck are coordinated and are connected with the plug-in mounting of jack by shear connector.
Between the transverse joint of adjacent bridge panel, be coated with and be shaped with fluid sealant.
Advantage and the good effect that the utlity model has are:
Adopt combinations thereof girder construction, bridge deck are prefabricated can carry out with bridge substructure simultaneously, installing steel pipe truss, and Pumping concrete reaches after design strength in upper and lower string pipe, can start block-by-block from end of the bridge prefabricated bridge deck are installed.This prefabricated bridge form of structure is compared with cast-in-place bridge deck form, do not need again a high position to set up bridge deck template and cast-in-site bridge deck, only the prefabricated bridge deck of piece need be fixedly connected with steel pipe truss, thereby can avoid a large amount of job spaces, significantly shorten the construction period of bridge and reduce costs, and ensureing construction period personal security, raising workmanship.
Brief description of the drawings
Fig. 1 is cross sectional representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the cross sectional representation of not being with the bridge deck of reserving hole;
Fig. 5 is the floor map of Fig. 4;
Fig. 6 is the cross sectional representation of the bridge deck with reserving hole;
Fig. 7 is the plan view of Fig. 6.
In figure: 1, steel pipe truss; 11, the steel pipe that winds up; 111, WELDING STUDS; 12, lower edge steel pipe; 13, web member; 2, bridge deck; 21, detent; 22, reserving hole; 23, shear connector; 24, jack; 3, annular otic placode; 4, bolt; 5, nut.
Detailed description of the invention
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-7, prefabricated bridge Steel Space pipe concrete truss combination beams, comprises steel pipe truss 1, and steel pipe truss is with reference to existing technology, and it comprises two steel pipes 11 that wind up, lower edge steel pipe 12 and connects the above web member 13 of lower edge steel pipe.Also comprise the independently bridge deck 2 of polylith that are longitudinally laid in turn steel pipe truss top along bridge.On the lower surface of every bridge deck, be provided with two detents 21 that coordinate one by one with two steel pipes that wind up of steel pipe truss, the first half of the steel pipe that winds up forms cambered surface with detent and contacts.At a certain distance be welded with multiple annular otic placodes 3 along pipe range direction at every on winding up steel pipe.Each annular otic placode forms by packing tightly at the circular arc portion of the steel pipe the latter half of winding up and the planar section that is located at circular arc portion two ends.The planar section at two ends is fixedly connected with the bridge deck of correspondence position with nut 5 by high-strength bolt 4.Concrete, in the end flat part of annular otic placode and the correspondence position of bridge deck, bolt hole is all set, by being installed on high-strength bolt in bolt hole and the nut of connecting bolt, to wind up steel pipe and bridge deck are fixed together, and nut can be located at the upper end of bridge deck or be embedded in bridge deck.
At present, domestic construction equipment and construction technology can ensure the prefabricated precision of bridge deck, and the key of this structural system is that can prefabricated bridge and steel pipe truss co-operation.For the connection that strengthens bridge deck and wind up between steel pipe, prevent from bridge deck and wind up between steel pipe, occurring relative shear slippage, except adopting winding up and welding ring-like otic placode on steel pipe, by high-strength bolt, bridge deck are bound up, be welded with many group WELDING STUDS 111 along pipe range direction according to a determining deviation at every on winding up steel pipe, on the bridge deck of correspondence position, be provided with reserving hole 22, every group of WELDING STUDS is inserted in the reserving hole of corresponding bridge deck, and WELDING STUDS is connected by the concrete being cast in reserving hole with corresponding bridge deck.
For guaranteeing Shear transfer and convenient installation contraposition between longitudinal adjacent bridge panel, on a side end face of every bridge deck, be provided with shear connector 23, correspondence position on opposite side end face is provided with jack 24, and adjacent bridge deck are coordinated and are connected with the plug-in mounting of jack by shear connector.The quantity of the jack of shear connector and cooperation can be carried out adaptability design according to the width of actual bridge floor, in the time of deck widening, can suitably increase the quantity of shear connector and jack.
Closely connected for ensureing adjacent bridge panel transverse joint, when assembled bridge deck, between plate, seam coats fluid sealant.
In the situation that the less and supporting capacity of bridge deck width is not high, above-mentioned bridge deck can adopt concrete structure, in the time that bridge floor is wider or supporting capacity is higher, in bridge deck, direction across bridge prestressing tendon can be set, in every bridge deck, interval arranges the prestressed reinforcement of direction across bridge.As required, also can longitudinal external pre-stress bundle be longitudinally set between each bridge deck along bridge, between the bridge deck of the outside lower end of bridge deck, longitudinal prestressed reinforcement be set.
Claims (4)
1. prefabricated bridge Steel Space pipe concrete truss combination beams, comprise steel pipe truss, it is characterized in that: also comprise the independently bridge deck of polylith that are longitudinally laid in turn steel pipe truss top along bridge, on the lower surface of every bridge deck, be provided with two detents that coordinate one by one with two steel pipes that wind up of steel pipe truss, the first half of the steel pipe that winds up forms cambered surface with detent and contacts; Be welded with multiple annular otic placodes along pipe range direction at every on winding up steel pipe, each annular otic placode forms by packing tightly at the circular arc portion of the steel pipe the latter half of winding up and the planar section that is located at circular arc portion two ends, and the end flat part of annular otic placode is fixedly connected with the bridge deck of correspondence position by high-strength bolt and nut.
2. prefabricated bridge Steel Space pipe concrete truss combination beams according to claim 1, it is characterized in that: be welded with many group WELDING STUDS along pipe range direction at every on winding up steel pipe, on the bridge deck of correspondence position, be provided with reserving hole, every group of WELDING STUDS is inserted in the reserving hole of corresponding bridge deck, and WELDING STUDS is connected by the concrete being cast in reserving hole with corresponding bridge deck.
3. prefabricated bridge Steel Space pipe concrete truss combination beams according to claim 1, it is characterized in that: on a side end face of every bridge deck, be provided with shear connector, correspondence position on opposite side end face is provided with jack, and adjacent bridge deck are coordinated and are connected with the plug-in mounting of jack by shear connector.
4. prefabricated bridge Steel Space pipe concrete truss combination beams according to claim 1, is characterized in that: between the transverse joint of adjacent bridge panel, be coated with and be shaped with fluid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103242.9U CN203768810U (en) | 2014-03-07 | 2014-03-07 | Prefabricated bridge deck space steel pipe concrete truss combined beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103242.9U CN203768810U (en) | 2014-03-07 | 2014-03-07 | Prefabricated bridge deck space steel pipe concrete truss combined beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768810U true CN203768810U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103242.9U Withdrawn - After Issue CN203768810U (en) | 2014-03-07 | 2014-03-07 | Prefabricated bridge deck space steel pipe concrete truss combined beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN203768810U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821087A (en) * | 2014-03-07 | 2014-05-28 | 天津城建大学 | Precast bridge deck space steel pipe concrete truss composite beam and construction method |
| CN106087697A (en) * | 2016-07-08 | 2016-11-09 | 苏交科集团股份有限公司 | Double triangle chord member prefabricated bridge combination beams and method for rapidly splicing |
| CN106192756A (en) * | 2016-07-08 | 2016-12-07 | 苏交科集团股份有限公司 | String wire bar concrete slab assembled combined bridge and construction method thereof |
| CN107849831A (en) * | 2015-10-21 | 2018-03-27 | 韩国铁道技术研究院 | Method for carrying out pushing tow/construction bridge using prefabricated panel and steel-pipe concrete truss |
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
| CN112813827A (en) * | 2021-02-02 | 2021-05-18 | 湖南工学院 | Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof |
-
2014
- 2014-03-07 CN CN201420103242.9U patent/CN203768810U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821087A (en) * | 2014-03-07 | 2014-05-28 | 天津城建大学 | Precast bridge deck space steel pipe concrete truss composite beam and construction method |
| CN103821087B (en) * | 2014-03-07 | 2015-10-28 | 天津城建大学 | Prefabricated bridge Steel Space pipe concrete truss combination beams and construction method |
| CN107849831A (en) * | 2015-10-21 | 2018-03-27 | 韩国铁道技术研究院 | Method for carrying out pushing tow/construction bridge using prefabricated panel and steel-pipe concrete truss |
| CN107849831B (en) * | 2015-10-21 | 2019-05-31 | 韩国铁道技术研究院 | For using prefabricated panel and steel-pipe concrete truss to carry out pushing tow/construction bridge method |
| CN106087697A (en) * | 2016-07-08 | 2016-11-09 | 苏交科集团股份有限公司 | Double triangle chord member prefabricated bridge combination beams and method for rapidly splicing |
| CN106192756A (en) * | 2016-07-08 | 2016-12-07 | 苏交科集团股份有限公司 | String wire bar concrete slab assembled combined bridge and construction method thereof |
| CN106192756B (en) * | 2016-07-08 | 2018-08-07 | 苏交科集团股份有限公司 | String wire bar-concrete slab assembled combined bridge and its construction method |
| CN106087697B (en) * | 2016-07-08 | 2018-08-07 | 苏交科集团股份有限公司 | Double triangle chord member-prefabricated bridge combination beams and method for rapidly splicing |
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
| CN112813827A (en) * | 2021-02-02 | 2021-05-18 | 湖南工学院 | Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof |
| CN112813827B (en) * | 2021-02-02 | 2022-04-22 | 湖南工学院 | Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |