CN104594183B - Assembling type reinforced concrete T-shaped beam - Google Patents
Assembling type reinforced concrete T-shaped beam Download PDFInfo
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- CN104594183B CN104594183B CN201410777551.9A CN201410777551A CN104594183B CN 104594183 B CN104594183 B CN 104594183B CN 201410777551 A CN201410777551 A CN 201410777551A CN 104594183 B CN104594183 B CN 104594183B
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- shaped beam
- prestressing force
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an assembling type reinforced concrete T-shaped beam which comprises a bottom plate, a top plate and wavy vertical steel plates arranged between the bottom plate and the top plate. The upper end face and the lower end face of each wavy vertical steel plate are provided with horizontal steel plate connectors and each wavy vertical steel plate is connected with the bottom plate and the top plate through the connectors respectively. Reinforcing head plates are arranged at the two ends of the beam and welded to or connected with the bottom plate, the top plate and the wavy vertical steel plates through the connectors respectively. Bearing partitions are arranged between the two reinforcing plates and connected with the top plate and the wavy vertical steel plates through the connectors respectively. A prestress wire penetrating pipe sequentially penetrating through the bearing partitions is arranged between the two reinforcing head plates, wherein a prestress bundle penetrates through the prestress wire penetrating pipe. The prestress bundle transmits prestress to the bottom plate and the top plate through the bearing partitions, so that a prestress reinforced T-shaped beam is formed. By the adoption of the technical scheme of the beam, factory prefabricated components are adopted for being simply combined and spliced on a site, structural bearing force is improved by exerting prestress, the single span can reach 60 m, and the assembling type reinforced concrete T-shaped beam is simple in structure, durable in bearing operation and low in investment cost.
Description
Technical field
A kind of field of structural design the invention belongs to the bridge of bridge collapses, and in particular to the T-shaped beam of assembled steel reinforced concrete.
Background technology
Highway or railway bridge, the beam slab of bridge deck, have steel reinforced concrete beam, have reinforced beam, also have assembled at present
Steel reinforced concrete box beam.For steel reinforced concrete beam, its clean steel beam cost is high, investment is big；For reinforced beam, its T-shape beam weight is big, pre-
Difficulty processed is big, needs field fabrication, required long in time limit；And existing steel reinforced concrete assembled box beam, span is limited, and general beam length exists
Below 30m, the market in urgent need little, simple structure of deadweight, prefabricated difficulty are little, reliable in quality middle across footpath bridge deck beam slab.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of T-shaped beam of assembled steel reinforced concrete, and which adopts factory-made component, shows
Field simply composite assembly, and structural bearing capacity, assembling beam of the single span up to 60m, the assembled is improved by applying prestressing force
The T-shaped girder construction of steel reinforced concrete is simple, it is low to carry durable, reliable in quality, cost of investment.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
A kind of T-shaped beam of assembled steel reinforced concrete, it is vertical including base plate, top board and the waveform steel being arranged between base plate and top board
Plate；The upper and lower ends face of the waveform Steel vertical plate is respectively equipped with horizontal steel plate and is connected with base plate and top board by connector respectively
Connect；The two ends of base plate are arranged to be strengthened head plate, distinguishes top board by connector and the connection of waveform Steel vertical plate or welding；Waveform Steel vertical plate
Both sides be provided with carrying dividing plate, be connected or weld with base plate, top board and waveform Steel vertical plate by connector respectively；Strengthen two
Arrange between head plate and sequentially pass through the prestressing force penetration pipe for carrying dividing plate, being installed with prestressing tendon, the prestressing tendon is by carrying
Dividing plate transmits prestressing force and forms the T-shaped beam of prestressing force reinforcing to top board.
The prestressing force penetration pipe along along bridge to axis in recessed geometric shape, formed along bridge to pendency arcuation, its
The pendency radian that pendency radian designs prestressing tendon after applying prestressing force with beam body matches, and forms prestressing tendon and wears with prestressing force
On spool inwall, cambered surface is implemented in combination with bearing stress transmission state.
Preferably, twice prestressing force penetration pipe, the prestressing force penetration pipe two are symmetrical arranged between the reinforcement head plate
Termination flange is connected with the prestress anchoraging backing plate in head plate is strengthened；The prestressing force penetration pipe is by more than 3 sections by overcoat
Pipe, turnbuckle are formed by connecting, or flange connection.
Connection board, connection board upper surface being welded with base plate and being welded with horizontal steel plate connecting plate, the longitudinal direction connects
Fishplate bar is provided with through hole corresponding with the horizontal steel plate.
The reinforcement head plate includes two parallel steel plates and the frame structure that connecting rib is formed, parallel by being cast in two
Concrete between steel plate forms one, is arranged on outside the steel plate of inner side and is additionally provided with rib plate.
In above-mentioned technical proposal, the horizontal steel plate of the upper and lower end face welding of waveform Steel vertical plate is provided with and top board and bottom
The corresponding through hole of plate, is connected with connectors such as bolts；The flanging on dividing plate is carried for connecting with top board, base plate and waveform Steel vertical plate
Connect, also can not flanging weld at the scene.By the way of above-mentioned split type preparation, live bolt connection or welding, on the one hand just
In site operation, Simplified flowsheet, on the other hand it is easy to the transport of prefabrication and component.Prestressing tendon is by tension-adjusting gear
Be anchored at reinforcement head plate on, prestressing tendon two ends apply prestressing force, grouting methol, the prestressing force by carry dividing plate and
The reinforcement head plate at two ends is loaded on top board, makes top board form micro- arch, is conducive to member stress, offsets carrying situation lower member
Downwarp, it is adaptable to across footpath bridge deck beam slab in 30-60m.
Using the beneficial effect of above-mentioned technical proposal generation it is：（1）The present invention bridge deck beam slab by strengthen head plate,
Make top board form micro- arch using symmetrically arranged prestressing tendon, offset carrying situation lower member downwarp, improve steel in the present invention
Mix shock resistance and the load-carrying properties of T-shaped beam；（2）Base plate in the present invention, waveform Steel vertical plate, carry dividing plate and top board can factory it is pre-
System assembling, bridge structure is simple, from heavy and light；（3）Only need to top board during site operation, strengthen head plate, carry dividing plate and bottom
Plate connects by connectors such as bolt or welding, and construction technology is simple, short time limit, is capable of achieving batch production component and produces, live group
Dress.
Description of the drawings
Fig. 1 be the present invention along bridge to cross section structure diagram；
Fig. 2 be in Fig. 1 A-A to cross section structure diagram；
Fig. 3 is the structural representation of rib plate of the present invention
Fig. 4 is the embodiment of middle base plate and waveform Steel vertical plate attachment structure；
Wherein, 1, top board, 2, prestressing force penetration pipe, 2-1, prestressing tendon, 3, strengthen head plate, 3-1, back veneer, 4, base plate, 5,
Waveform Steel vertical plate, 7, rib plate, 8, carry dividing plate, 12, connection board, 13, longitudinally connected plate.
Specific embodiment
Referring to Fig. 1 ~ Fig. 2, the present embodiment is related to a kind of T-shaped beam of assembled steel reinforced concrete, including base plate 4, top board 1 and is arranged on
Waveform Steel vertical plate 5 between base plate 4 and top board 1；The upper and lower ends face of the waveform Steel vertical plate 5 is provided with horizontal steel plate as connection
Plate, it is connected with base plate 4 and top board 1 by connectors such as bolts respectively or directly welds with base plate and top board, two on base plate
End is arranged to be had reinforcement head plate 3 respectively, is connected or welds with base plate 4 and top board 1 and waveform Steel vertical plate 5 by connector respectively,
The both sides of waveform Steel vertical plate 5, two reinforcement head plates 3 between arrange it is some carrying dividing plates 8, by connector respectively with base plate, top board 1
Connect with waveform Steel vertical plate 5 or directly weld；Arrange between two reinforcement head plates 3 and sequentially pass through carrying dividing plate 8, be installed with prestressing force
The prestressing force penetration pipe 2 of beam 2-1, the prestressing tendon 2-1 form prestressing force by the transmission prestressing force of dividing plate 8 is carried to top board 1
Strengthen T-shaped beam.In the present embodiment, top board 1, base plate 4, waveform Steel vertical plate 5, carrying dividing plate 8 and reinforcement head plate 3 are pre- in factory
System, is easy to industrialized production, and machining accuracy is high, is conducive to the reduction of erection time, and various components separately transport, it is prefabricated to efficiently solve
Beam body product is big, from great and technical problem that cannot transport, under conditions of quality is effectively ensured, reduce construction cost.
The prestressing force penetration pipe 2 along along bridge to axis in recessed geometric shape, formed along bridge to pendency arcuation, its
The pendency radian that pendency radian designs prestressing tendon 2-1 after applying prestressing force with beam body matches, and central bottom is fixed with base plate 4
Connection, on formation prestressing tendon 2-1 and 2 inwall of prestressing force penetration pipe, cambered surface is implemented in combination with bearing stress transmission state.Institute
State in reinforcement head plate 3, be symmetrically arranged with twice prestressing force penetration pipe 2,2 two ends flange of the prestressing force penetration pipe and reinforcement
Prestress anchoraging backing plate connection in head plate 3；The prestressing force penetration pipe 2 by more than 3 sections by trocar sheath, turnbuckle connection and
Into.After applying prestressing force, prestressing force penetration pipe 2 is fixed together using welding manner with dividing plate 8 is carried, and is applying prestressing force
Grouting methol in backward penetration pipe prestressing force 2.
Connection board 12,12 upper surface of connection board is welded with base plate 4 is welded with longitudinally connected plate 13, the longitudinal direction
Connecting plate 13 is provided with through hole corresponding with the horizontal steel plate of the waveform Steel vertical plate lower end.
The width of the longitudinally connected plate 13 matched with the horizontal steel plate of waveform Steel vertical plate, than 5 wave height of waveform Steel vertical plate
Wide 2 ~ 10cm.
The reinforcement head plate 3 includes two parallel steel plates and the frame structure that connecting rib is formed, flat by being cast in two
Concrete between row steel plate forms one.The upper and lower end face of the steel plate is equipped with ectotropic right angle flanging, in " ］ " shape,
It is respectively equipped with the flanging and 1 corresponding screwed hole of base plate 4 and top board.
The reinforcement 3 upper lateral width of head plate is identical with top board 1, lower, transverse width and base plate 4 coincide.
Described to carry the frame structure that dividing plate 8 is welded into by parallel Steel vertical plate and connecting rib group, the Steel vertical plate can be welded
Connect, it is also possible to the top of Steel vertical plate and with the connection end of waveform Steel vertical plate 5 difference flanging, arrange on flanging with top board 1 and
5 corresponding screwed hole of waveform Steel vertical plate.
Specifically, T-shape steel reinforced concrete of the invention assembling beam includes factory-made component and site operation two parts.Wherein work
Factory's prefabricated components structure is as follows：
First, base plate 4, are that one or more rectangular tubes are spliced side by side.Which can adopt following processing method：1. by steel
Plate is processed into pipe, is then cold rolled to rectangular tube, then more than 2 rectangular tubes arranged side by side is connected in the form of side wall connects many
The base plate of chamber；2. steel plate is processed into into " Qian " shape, then by the side wall of " Qian " shape steel plate by bolt connection, then welded cover plate
Form the base plate of multi-chamber.
A connection board 12 is welded along its axial direction on base plate 4, its height is typically in 20cm or so.Connection board 12
Using waveform, its stability is improved.12 upper end of connection board welding one with screw longitudinally connected plate 13, for top
Waveform Steel vertical plate 3 connects, and forms the floor combination with vertical connecting seat on base plate, as shown in Figure 4.
Base plate is segmented into some sections, and the outer pasting board that is connected by between section and section connects, and outer pasting board is arranged on two and is connected
The base plate seam crossing for the connecing bottom surface and side of mutually being spliced two base plates encase, is about 80cm-120cm, is connected with.
2nd, waveform Steel vertical plate 5, it is spacing between top board 1 and base plate 4.Water is welded in 5 upper/lower terminal face of waveform Steel vertical plate
Plain plate or steel band connector, horizontal steel plate are provided with and the longitudinally connected plate 13 and the bolt hole corresponding with top board 1.Ripple
Head plate 3, or prepared screw-bolt hole are strengthened in the termination welding of 5 longitudinal direction of shape Steel vertical plate two, are fixedly connected with head plate 3 is strengthened with bolt.
Waveform Steel vertical plate 5 is segmented into some sections, using directly overlap joint welding, or can directly overlap spiral shell between section and section
Tether and connect；Or after directly butt welding, or docking, use pasting board, bolt connection.
It is described strengthen 3 structure of head plate include the frame structure of two parallel steel plates and connecting rib formation, by cast
Concrete between two parallel steel plates forms one, is positioned between base plate 4 and top board 1, offers and institute on steel plate facade
State 2 corresponding through hole of prestressing force penetration pipe.
3rd, strengthen head plate 3
1st, shape, lower end is wide, and connecting plate coincide above with base plate 4, and upper end is wide to be coincide with 1 bottom surface of top board.
2nd, structure：Structure is integrally formed by the steel plate being parallel to each other and the cement concrete being cast between two steel plates, two
Weldering nail is provided between steel plate, should first install anchoring backing plate and the flange being connected with prestressing force penetration pipe before pouring into a mould concrete
Disk.The top and bottom of two steel plates is equipped with ectotropic right angle flanging, is respectively equipped with corresponding with base plate 4 and top board 1 on flanging
Screwed hole, for be connected with base plate 4 and top board 1 can not also flanging directly welding is welded with base plate 4 and top board 1.
It is arranged on outside the steel plate on the inside of reinforcement head plate 3 and is welded with rib plate, rib plate 7 is connected with base plate 4, rib plate 7
Structure such as Fig. 3.
4th, prestressing force penetration pipe
Prestressing force penetration pipe 2 is divided into some sections, can weld between section and section, or is connected using trocar sheath, turnbuckle.
The connection of prestressing force penetration pipe 2 and base plate 4：It should be welded with base plate in advance or be fixed with bolt and is connected with prestressing force penetration pipe 2
Prestressing force penetration pipe 2 is fixed welding with base plate by the device for connecing.
5th, dividing plate and top board are carried
Top board 1, is gone out the groove being connected with ripple shape steel web by cold-rolling of steel plate, is provided with through hole in groove, during construction, will top
Plate 1 is connected with connectors such as bolts with after the positioning of waveform Steel vertical plate 5.
Carry dividing plate 8 and adopt double-decker, inside have peg, its upper end and carry with the connection end of waveform Steel vertical plate
Flanging, is respectively equipped with screwed hole corresponding with base plate, top board and waveform Steel vertical plate on flanging.Flanging can also be not provided with, be adopted
Directly the mode of welding is installed.Carry the through hole being additionally provided with dividing plate for wearing prestressing force penetration pipe 2.
The processing of above-mentioned component is completed, is transported to construction and is assembled now：
A, base plate 4 is connected and is positioned, the horizontal steel plate of 5 upper and lower end face of waveform Steel vertical plate by bolt respectively with base plate on
Longitudinally connected plate 13 and top board connection, or directly waveform Steel vertical plate 5 is welded with base plate and top board respectively；
B, by strengthen head plate 3 flanging up and down connect by the connector such as bolt base plate 4 and top board 1 respectively, will carry
The screwed hole on screwed hole correspondence top board 1 on 8 top flanging of dividing plate is located by connecting with top board, carries the flanging of 8 side of dividing plate
On screwed hole and waveform Steel vertical plate 5, and the carrying dividing plate screwed hole of 5 opposite side of waveform Steel vertical plate it is corresponding, be connected with；
Can also be using the direct welding manner connection of not flanging.
C, the reserved location hole that prestressing force penetration pipe 2 is sequentially passed through carrying dividing plate, centre is fixedly connected with base plate；Two ends
Head flange links together with the prestress anchoraging backing plate in head plate is strengthened, and then fastens the connecting bolt of turnbuckle, wears pre-
Prestress steel strand；
After D, top board 1, base plate 4, waveform Steel vertical plate 5, carrying dividing plate 8 and reinforcement head plate 3 are completed, apply prestressing force
Before, to the within the chamber injection pressure cement concrete of base plate 4；
E, base plate intracavity injection pressure concrete and after being completed, apply prestressing force, prestress application to prestressing tendon 2-1
Afterwards, prestressing tendon 2-1 need to be made to be consolidated into one with prestressing force penetration pipe 2 by cement mortar to grouting methol in prestressing force penetration pipe 2
Body, its purpose one are that the transmission of power will be got well, and two is that the steel strand wires for protecting stress are not corroded by extraneous.
Claims (9)
1. the T-shaped beam of a kind of assembled steel reinforced concrete, including the base plate of steel（4）, steel top board（1）And it is arranged on base plate（4）With
Top board（1）Between waveform Steel vertical plate（5）；It is characterized in that the waveform Steel vertical plate（5）Upper and lower ends face be respectively equipped with water
Plain plate and by connector respectively with base plate（4）And top board（1）Connection；The two ends of base plate are arranged strengthens head plate（3）, by
Connector distinguishes top board（1）With waveform Steel vertical plate（5）Connection is welded；Waveform Steel vertical plate（5）Both sides be provided with carrying dividing plate
（8）, by connector respectively with base plate（4）, top board（1）With waveform Steel vertical plate（5）Connection is welded；Strengthen head plate two（3）
Between arrange sequentially pass through carrying dividing plate（8）, be installed with prestressing tendon（2-1）Prestressing force penetration pipe（2）, the prestressing tendon
（2-1）By carrying dividing plate（8）Transmission prestressing force is to top board（1）Form prestressing force and strengthen T-shaped beam；The connector is bolt.
2. the T-shaped beam of assembled steel reinforced concrete according to claim 1, it is characterised in that the prestressing force penetration pipe（2）Along along bridge
To axis in recessed geometric shape, formed along bridge to pendency arcuation, after its pendency radian and beam body design applies prestressing force
Prestressing tendon（2-1）Pendency radian match, formed prestressing tendon（2-1）With prestressing force penetration pipe（2）Cambered surface on inwall
It is implemented in combination with bearing stress transmission state.
3. the T-shaped beam of assembled steel reinforced concrete according to claim 1 and 2, it is characterised in that in base plate（4）On to be welded with connection vertical
Plate（12）, connection board（12）Upper surface is welded with longitudinally connected plate（13）, the longitudinally connected plate（13）Be provided with it is described
The corresponding through hole of horizontal steel plate.
4. the T-shaped beam of assembled steel reinforced concrete according to claim 3, it is characterised in that the longitudinally connected plate（13）Width with
Horizontal steel plate width matching, than the waveform Steel vertical plate（5）The wide 2 ~ 10cm of wave height.
5. the T-shaped beam of assembled steel reinforced concrete according to claim 1, it is characterised in that the reinforcement head plate（3）It is parallel including two
Steel plate and reinforcing ribs plate shape into frame structure, form one by the cement concrete that is cast between two parallel steel plates
Body.
6. the T-shaped beam of assembled steel reinforced concrete according to claim 5, it is characterised in that the reinforcement head plate（3）Upper lateral width
Degree and top board（1）Identical, lower, transverse width and base plate（4）It coincide.
7. the T-shaped beam of assembled steel reinforced concrete according to claim 1, it is characterised in that in the reinforcement head plate（3）Between it is symmetrical
It is provided with twice prestressing force penetration pipe（2）, the prestressing force penetration pipe（2）Two ends flange and reinforcement head plate（3）On it is pre-
Stress anchoring backing plate connection；The prestressing force penetration pipe（2）Be formed by connecting by trocar sheath, turnbuckle by more than 3 sections or by
Flange connects.
8. the T-shaped beam of assembled steel reinforced concrete according to claim 1, it is characterised in that the prestressing force penetration pipe（2）With carrying
Dividing plate（8）Welding.
9. the T-shaped beam of according to claim a kind of assembled steel reinforced concrete, it is characterised in that the carrying dividing plate（8）By parallel steel
Riser and connecting rib group are welded into frame structure, the top of the Steel vertical plate and with waveform Steel vertical plate（5）Connection end difference
Flanging is provided with, is arranged and top board on flanging（1）With waveform Steel vertical plate（5）Corresponding screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777551.9A CN104594183B (en) | 2014-12-17 | 2014-12-17 | Assembling type reinforced concrete T-shaped beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777551.9A CN104594183B (en) | 2014-12-17 | 2014-12-17 | Assembling type reinforced concrete T-shaped beam |
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| CN104594183A CN104594183A (en) | 2015-05-06 |
| CN104594183B true CN104594183B (en) | 2017-03-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064197B (en) * | 2015-07-23 | 2017-03-22 | 苏交科集团股份有限公司 | Corrugated steel web compound web structure |
| CN105908615A (en) * | 2016-04-28 | 2016-08-31 | 四川省交通运输厅公路规划勘察设计研究院 | Pretensioned prestressing steel tank concrete beam |
| CN105908616A (en) * | 2016-04-28 | 2016-08-31 | 四川省交通运输厅公路规划勘察设计研究院 | Calculating method for pretensioned prestressing steel tank concrete beam |
| CN107419826A (en) * | 2017-06-12 | 2017-12-01 | 河南奥斯派克科技有限公司 | Antinode plate and double-C-shaped steel composite structural member shear wall |
| CN108842591A (en) * | 2018-06-29 | 2018-11-20 | 东南大学 | Configure the precast segment T beam bridge construction and construction method of internal external pre-stress bundle |
Family Cites Families (5)
| 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 |
| CN202007380U (en) * | 2011-04-01 | 2011-10-12 | 河南省交通规划勘察设计院有限责任公司 | Prestressed concrete I beam of wave-shaped steel web plate |
| CN202131559U (en) * | 2011-04-01 | 2012-02-01 | 河南省交通规划勘察设计院有限责任公司 | Corrugated steel web plate prestressed concrete continuous box girder |
| CN202610695U (en) * | 2012-06-25 | 2012-12-19 | 河南省交通规划勘察设计院有限责任公司 | Corrugated steel web type pre-tensioned prestressed concrete I-type beam |
| CN102691257A (en) * | 2012-06-25 | 2012-09-26 | 河南省交通规划勘察设计院有限责任公司 | Continuous box girder made of corrugated steel web pre-tensioned prestressed concrete and construction method |
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Address after: 054001, 79 Qiao Road, Qiaodong District, Hebei, Xingtai Patentee after: Xingtai road and Bridge Construction Group Co.,Ltd. Address before: 054001, 79 Qiao Road, Qiaodong District, Hebei, Xingtai Patentee before: XINGTAI ROAD & BRIDGE CONSTRUCTION GENERAL Co.,Ltd. |
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