CN103556563A - Steel-RPC (Reactive Powder Concrete) composite bridge - Google Patents

Steel-RPC (Reactive Powder Concrete) composite bridge Download PDF

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Publication number
CN103556563A
CN103556563A CN201310552717.2A CN201310552717A CN103556563A CN 103556563 A CN103556563 A CN 103556563A CN 201310552717 A CN201310552717 A CN 201310552717A CN 103556563 A CN103556563 A CN 103556563A
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China
Prior art keywords
rpc
steel
longeron
bridge
longitudinal beams
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Granted
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CN201310552717.2A
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CN103556563B (en
Inventor
项育德
高明昌
缪文辉
陈侃
许云生
吴延伟
杨少军
岳迎九
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China Railway First Survey and Design Institute Group Ltd
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China Railway First Survey and Design Institute Group Ltd
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Priority to CN201310552717.2A priority Critical patent/CN103556563B/en
Publication of CN103556563A publication Critical patent/CN103556563A/en
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Abstract

The invention relates to a steel-RPC (Reactive Powder Concrete) composite bridge. Conventional bridges generally adopt reinforced concrete or prestressed concrete structures and are required to be cast in situ or erected in entire holes after prefabrication, and the construction expenses are high. The steel-RPC composite bridge is characterized in that two RPC longitudinal beams with beam surfaces which face to each other are longitudinally arranged, and the top of the bridge is covered by RPC bridge decks; the RPC longitudinal beams and the RPC bridge decks are longitudinally divided into multiple sections and the multiple sections are mutually spliced; a U-shaped embedded steel plate is arranged at the end part of each section of the RPC longitudinal beams; after two adjacent sections of RPC longitudinal beams are spliced, gusset plates are arranged on the two sides of the transverse direction of a longitudinal beam joint; bolts penetrate through the gusset plates on the two sides to splice and fix the two adjacent sections of RPC longitudinal beams; connecting steel boxes and connecting frame bents are arranged between the two rows of RPC longitudinal beams. The steel-RPC composite bridge has the advantages that the structure is simple, the stress is clear, the materials are novel, the mechanical property is good, the bridge can be prefabricated and transported section by section and can be spliced on the site, the tensile strength and the compressive strength of RPC are fully utilized, steel bars or prestressed bars are not necessarily configured in the structure and the durability is better.

Description

Steel-RPC combined bridge
Technical field
the invention belongs to bridge construction technical field, be specifically related to a kind of steel-RPC combined bridge.
Background technology
Conventional bridge generally adopts steel concrete or prestressed reinforced concrete construction, and these two kinds of structures must cast in situs or at prefabricated rear full span erection, weight concrete is large, and operating expenses is high, is unsuitable for area poor at traffic condition, constructional difficulties and uses.
RPC (reactive powder concrete, RPC), is to take fine sand as aggregate, mixes a large amount of silicon ashes and waits mineral admixture, high efficiency water reducing agent and micro steel fiber, the concrete material of a kind of high strength of formation, high tenacity, low porosity.Compare with general concrete, rejected coarse aggregate (stone), needn't configuration reinforcement or prestress wire, be the high performance concrete that DSP material and fiber reinforced material are composited.
Summary of the invention
The object of this invention is to provide a kind of steel-RPC combined bridge, make full use of tension, the resistance to compression design strength of RPC, reduce Concrete Bridge Structures use amount, reduce construction and drop into.
The technical solution adopted in the present invention is:
Steel-RPC combined bridge, is characterized in that:
Be vertically arranged with the RPC longeron of two parallel placements, RPC longeron top is equipped with RPC bridge deck.
The contact surface place of described RPC longeron and RPC bridge deck, RPC bridge deck are provided with bridge deck prepared screw-bolt hole, and RPC longeron back is embedded with bolt, and RPC bridge deck are bolted on RPC longeron back.
Described RPC longeron and RPC bridge deck are longitudinally divided into more piece, and splicing forms whole mutually.
Each end of saving RPC longeron is provided with the pre-embedded steel slab of " Qian " font, on pre-embedded steel slab and RPC longeron relevant position, is provided with bolt hole;
After adjacent two joint RPC longeron splicings, longeron seam both lateral sides is provided with gusset plate, is correspondingly provided with bolt hole on gusset plate;
Bolt is fixing by adjacent two joint RPC longeron splicings through both sides gusset plate.
Between the end of two row RPC longerons, be provided with horizontal connection steel case.
Between two row's RPC longerons, respectively save between the inner side gusset plate that RPC longeron splices mutually and be welded with horizontal connection framed bent.
Described channel-section steel laterally connects framed bent and is welded to form by upper and lower two horizontal channel-section steels and the angle steel between channel-section steel, and angle steel is W support and connects.
On described RPC longeron, offer hole.
The present invention has the following advantages:
The present invention simple in structure, stressed clear and definite, material is novel and mechanical property good, can be segmented prefabricated, segmented transportation, on-site consolidation, and take full advantage of tension and the compressive strength of RPC, not configuration reinforcement or presstressed reinforcing steel in structure, durability is better.
Accompanying drawing explanation
Fig. 1 is elevation of the present invention.
Fig. 2 is I-I sectional view.
Fig. 3 is II-II sectional view.
Fig. 4 is III-III sectional view.
Fig. 5 is IV-IV sectional view.
Fig. 6 is A drawing.
Fig. 7 is deck structrue figure.
In figure, 1-RPC longeron, 2-RPC bridge deck, 3-longeron seam, 4-laterally connects steel case, and 5-laterally connects framed bent, 6-gusset plate, 7-pre-embedded steel slab, 8-bolt, 9-bridge deck prepared screw-bolt hole, 10-angle steel, 11-channel-section steel.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention will be described in detail.
Referring to Fig. 1, a kind of steel-RPC combined bridge involved in the present invention, be vertically arranged with the RPC longeron 1 that two parallel placements beam face are relative, RPC longeron 1 top is equipped with RPC bridge deck 2, longeron and bridge deck all adopt RPC (RPC) material, needn't configuration reinforcement or prestress wires, from heavy and light, prefabricated fast, tension, compressive strength are high.Referring to Fig. 3-5, the contact surface place of RPC longeron 1 and RPC bridge deck 2, RPC bridge deck 2 are provided with bridge deck prepared screw-bolt hole 9, and RPC longeron 1 back is embedded with bolt, RPC bridge deck 2 are bolted on RPC longeron 1 back, and reserving hole adopts epoxy sealing glue perfusion closely knit.
Referring to Fig. 1-2, RPC longeron 1 and RPC bridge deck 2 can longitudinally be divided into more piece, and segmented (longitudinal 5m mono-joint of longeron, longitudinal 0.5m mono-joint of bridge deck) is prefabricated in the factory, and splicing forms whole mutually.Longeron connecting method is: referring to Fig. 6, each end of saving RPC longeron 1 is provided with the pre-embedded steel slab 7 of " Qian " font, from RPC longeron 1 end face side parcel RPC longeron 1 end, on pre-embedded steel slab 7 and RPC longeron 1 relevant position, is provided with bolt hole; After adjacent two joint RPC longeron 1 splicings, longeron seam 3 both lateral sides are provided with gusset plate 6, are provided with corresponding bolt hole on gusset plate 6; Bolt 8 is fixing by adjacent two joint RPC longeron 1 splicings through both sides gusset plate 6.Corresponding RPC longeron 1 position, RPC bridge deck 2 tops arranges two row railings.
For improving beam body lateral stiffness, strengthen the lateral ties between two row's longerons, between the end of two row RPC longerons 1, be bearing place, horizontal connection steel case 4 is set, weld mutually with the pre-embedded steel slab of bearing place longeron inner side.Between two row's RPC longerons 1, respectively save between the inner side gusset plate 6 that RPC longeron 1 splice mutually and be welded with horizontal connection framed bent 5, channel-section steel laterally connects framed bent 5 and is welded to form by the angle steel 10 between upper and lower two horizontal channel-section steels 11 and channel-section steel 11, and angle steel 10 is W and supports connection.
For saving RPC concrete amount, reduce beam portion transverse wind, and improve beam body aesthetic property, on RPC longeron 1, offer a plurality of holes, hole can be the nose circle shape hole of radius 0.5m, the long 0.5m of intermediate straight line.
Specific construction step of the present invention is as follows:
1, longeron merogenesis (5m mono-joint) is prefabricated in the factory, and reserved high-strength bolt hole, the pre-buried connecting bolt of back on longeron transport scene to after longeron Ying factory examination amalgamation lattice.
2, bridge deck merogenesis (0.5m mono-joint) is prefabricated in the factory, and notes prepared screw-bolt hole.
3, the substructure such as site operation Bridge Pier.
4, support is set up at longeron merogenesis place in scene, and support should meet relevant regulations.On bridge location pier and support, splice longeron, gusset plate and high-strength bolt are installed.
5, fulcrum and seam crossing are installed and are laterally connected steel case and W support.
6, bridge deck are installed, perfusion epoxy sealing glue.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading manual of the present invention, is claim of the present invention and contains.

Claims (8)

1. steel-RPC combined bridge, is characterized in that:
Be vertically arranged with the RPC longeron (1) of two parallel placements, RPC longeron (1) top is equipped with RPC bridge deck (2).
2. steel-RPC combined bridge according to claim 1, is characterized in that:
The contact surface place of described RPC longeron (1) and RPC bridge deck (2), RPC bridge deck (2) are provided with bridge deck prepared screw-bolt hole (9), and RPC longeron (1) back is embedded with bolt, and RPC bridge deck (2) are bolted on RPC longeron (1) back.
3. steel-RPC combined bridge according to claim 2, is characterized in that:
Described RPC longeron (1) and RPC bridge deck (2) are longitudinally divided into more piece, and splicing forms whole mutually.
4. steel-RPC combined bridge according to claim 3, is characterized in that:
Each end of saving RPC longeron (1) is provided with the pre-embedded steel slab (7) of " Qian " font, on pre-embedded steel slab (7) and RPC longeron (1) relevant position, is provided with bolt hole;
After adjacent two joint RPC longeron (1) splicings, longeron seam (3) both lateral sides is provided with gusset plate (6), and gusset plate is correspondingly provided with bolt hole on (6);
Bolt (8) is fixing by adjacent two joint RPC longeron (1) splicings through both sides gusset plate (6).
5. steel-RPC combined bridge according to claim 4, is characterized in that:
Between the end of two row's RPC longerons (1), be provided with horizontal connection steel case (4).
6. steel-RPC combined bridge according to claim 5, is characterized in that:
Between two rows RPC longerons (1), respectively save between the inner side gusset plate (6) that RPC longeron (1) splices mutually and be welded with horizontal connection framed bent (5).
7. steel-RPC combined bridge according to claim 6, is characterized in that:
Described channel-section steel laterally connects framed bent (5) and is welded to form by the angle steel (10) between upper and lower two horizontal channel-section steels (11) and channel-section steel (11), and angle steel (10) is W support and connects.
8. steel-RPC combined bridge according to claim 7, is characterized in that:
On described RPC longeron (1), offer hole.
CN201310552717.2A 2013-11-11 2013-11-11 Steel-RPC combined bridge Active CN103556563B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310552717.2A CN103556563B (en) 2013-11-11 2013-11-11 Steel-RPC combined bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310552717.2A CN103556563B (en) 2013-11-11 2013-11-11 Steel-RPC combined bridge

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CN103556563A true CN103556563A (en) 2014-02-05
CN103556563B CN103556563B (en) 2015-10-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104131652A (en) * 2014-07-17 2014-11-05 湖南大学 Fabricated RPC-steel-concrete hybrid beam structure
CN105088932A (en) * 2014-05-06 2015-11-25 郑州大学 Novel prefabricated hollow slab and hollow slab bridge construction method using same
CN109577164A (en) * 2017-07-19 2019-04-05 孟美丽 The installation equipment of bridge and bridge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002250009A (en) * 2001-02-23 2002-09-06 Nippon Steel Corp Steel-concrete composite beam using corrugated steel plate web
KR20040105940A (en) * 2003-06-10 2004-12-17 (주)대우건설 Structures and Methods for Connection between Precast Decks and Prestressed Concrete Girders
CN101158143A (en) * 2007-11-23 2008-04-09 清华大学 Double-deck bridge floor combined trussed girder bridge
CN101748682A (en) * 2010-01-22 2010-06-23 清华大学 Steel-concrete composite beam adopting corrugated steel web and construction method thereof
CN102704386A (en) * 2012-06-13 2012-10-03 交通运输部公路科学研究所 Prefabricated component assembly type segment assembling corrugated steel web RPC (Reactive Powder Concrete) combination box girder and method therefor
CN203559329U (en) * 2013-11-11 2014-04-23 中铁第一勘察设计院集团有限公司 Steel-RPC (reactive powder concrete) combined bridge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002250009A (en) * 2001-02-23 2002-09-06 Nippon Steel Corp Steel-concrete composite beam using corrugated steel plate web
KR20040105940A (en) * 2003-06-10 2004-12-17 (주)대우건설 Structures and Methods for Connection between Precast Decks and Prestressed Concrete Girders
CN101158143A (en) * 2007-11-23 2008-04-09 清华大学 Double-deck bridge floor combined trussed girder bridge
CN101748682A (en) * 2010-01-22 2010-06-23 清华大学 Steel-concrete composite beam adopting corrugated steel web and construction method thereof
CN102704386A (en) * 2012-06-13 2012-10-03 交通运输部公路科学研究所 Prefabricated component assembly type segment assembling corrugated steel web RPC (Reactive Powder Concrete) combination box girder and method therefor
CN203559329U (en) * 2013-11-11 2014-04-23 中铁第一勘察设计院集团有限公司 Steel-RPC (reactive powder concrete) combined bridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105088932A (en) * 2014-05-06 2015-11-25 郑州大学 Novel prefabricated hollow slab and hollow slab bridge construction method using same
CN104131652A (en) * 2014-07-17 2014-11-05 湖南大学 Fabricated RPC-steel-concrete hybrid beam structure
CN109577164A (en) * 2017-07-19 2019-04-05 孟美丽 The installation equipment of bridge and bridge

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