CN1637215A - Structure and method of connecting I-type prestressed concrete beams using steel brackets - Google Patents

Structure and method of connecting I-type prestressed concrete beams using steel brackets Download PDF

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Publication number
CN1637215A
CN1637215A CN 200410033806 CN200410033806A CN1637215A CN 1637215 A CN1637215 A CN 1637215A CN 200410033806 CN200410033806 CN 200410033806 CN 200410033806 A CN200410033806 A CN 200410033806A CN 1637215 A CN1637215 A CN 1637215A
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CN
China
Prior art keywords
psc
plate
steel bracket
prestressed cable
metallic conduit
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CN 200410033806
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Chinese (zh)
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CN100417771C (en
Inventor
金源根
金文八
申铉琦
朴圣圭
金泰亨
孙荣浩
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东洋综合建业株式会社
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Priority to KR1020030095319 priority Critical
Priority to KR20030095319A priority patent/KR100621539B1/en
Application filed by 东洋综合建业株式会社 filed Critical 东洋综合建业株式会社
Publication of CN1637215A publication Critical patent/CN1637215A/en
Application granted granted Critical
Publication of CN100417771C publication Critical patent/CN100417771C/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/28Concrete reinforced prestressed
    • E01D2101/285Composite prestressed concrete-metal

Abstract

A structure and method of connecting a plurality of PSC-I beams (PSC-I beams) to each other using steel brackets. The beam connecting structure, each having a sheath pipe therein, includes an end plate which is mounted on each of both ends of each of the PSC-I beams, with a through hole provided on an upper portion of the end plate to correspond to the sheath pipe embedded in each of the PSC-I beams; a steel bracket integrally which is provided on the end plate to be perpendicular to the end plate; a bracket coupling plate to integrally couple the aligned steel brackets to each other; a bottom connecting plate which is provided on lower ends of the aligned steel brackets to connect the steel brackets to each other; a connecting sheath pipe which is provided between the PSC-I beams so that both ends of the connecting sheath pipe are respectively inserted into the through holes of the neighboring end plates of the PSC-I beams while the PSC-I beams are arranged linearly; a prestress strand which is inserted in the sheath pipes of the PSC-I beams and the connecting sheath pipe; and a concrete part which is filled in a space between the PSC-I beams to embed the aligned steel brackets, the bracket coupling plate and the connecting sheath pipe in the concrete part.

Description

The structure and the method that adopt steel bracket that the prestressed concrete i beam is coupled together

TECHNICAL FIELD OF THE INVENTION

Present invention relates in general to a kind of employing steel bracket with structure and method that prestressed concrete i beam (being designated hereinafter simply as the PSC-I beam) couples together, especially relate to a kind of structure and method that adopts steel bracket that a plurality of independent on the ground prefabricated PSC-I beams are joined to one another.

The background of invention

Figure 1A is the lateral view of a Two Span Bridge, and this Two Span Bridge adopts a kind of ordinary construction that two prestressed concrete i beams (PSC-I beam) 1 are joined to one another.These two prefabricated on the ground respectively the forming of PSC-I beam 1 that are used for this common Two Span Bridge of Figure 1A.Afterwards, each PSC-I beam 1 is placed on a bridge pier and a pair of supporting ground independently, thereby these two ends that supporting ground supporting this Two Span Bridge form a simple girder system system.At this moment, these two PSC-I beams 1 only are joined to one another by a kind of concrete slab 16, and this concrete slab constitutes on these two PSC-I beams 1.Perhaps, adopt another kind of traditional beam syndeton shown in Figure 1B that a plurality of PSC-I beams 1 are joined to one another.

Construct a bridge in order to adopt the traditional beam syndeton among Figure 1B, need prefabricated each PSC-I beam 1, therefore need will make an end of each arrangement of reinforcement expose the predetermined length of an end from the end of PSC-I beam 1 simultaneously in a plurality of arrangements of reinforcement 17 each PSC-I beam 1 of implantation.Afterwards, each PSC-I beam 1 is arranged in this between supporting ground and this bridge pier 2.Two PSC-I beams 1 between the end on the bridge pier 2, have predetermined spacing.PSC-I beam 1 linear arrangement well after, the arrangement of reinforcement 17 that exposes from an end of one of them PSC-I beam 1 links to each other with the arrangement of reinforcement 17 that a end from adjacent PSC-I beam 1 exposes separately.Then, thus injecting concrete to the predetermined space that forms between the end of these two PSC-I beams 1 forms a concrete part 15.On PSC-I beam 1 and concrete part 15, form concrete slab 16 subsequently.(with reference to patent documentation 1).

Patent documentation 1 is Korean Utility Model 20-0242363 number.

But, at the traditional structure that is used for connecting PSC-I beam 1, each PSC-I beam 1 is all being played the part of the role of a simply supported beam system.That is to say that each end at the two ends of PSC-I beam 1 all is provided with additional block bearing 3 and PSC-I beam 1 is bearing on bridge pier 2 and the supporting ground.Therefore, must on this bridge pier 2, arrange at least two block bearings 3.Therefore, desirable, the reaction force of opposing changing load should be applied to starving on two block bearings 3 on the bridge pier 2 equably.But, in fact, the reaction force of one of them in two block bearings 3 is negative reaction force, and the reaction force of another block bearing is excessive positive reaction force.Therefore, the block bearing 3 with excessive positive reaction force must have bigger load.Therefore, common beam syndeton makes the user bear excessive construction cost.

In the bridge of the common beam syndeton in adopting Figure 1B, concrete part 15 is cast in the space of PSC-I beam 1 qualification.At this moment, can between the end of the end of concrete part 15 and PSC-I beam 1, form unfavorable cold junction.Therefore, can be around cold junction owing to changing load produces the crack.As mentioned above, when forming the crack around cold junction, PSC-I beam 1 just can not connect each other securely.Therefore, will in the bridge that adopts common beam syndeton, produce structural defect.

Simultaneously, PSC-I beam 1 be bearing in part on the bridge pier 2 around can produce negative momentum.But, the strength deficiency of common beam syndeton is with above-mentioned negative momentum.Therefore, concrete slab 16 be cast in part on the concrete part 15 between the PSC-I beam 1 around can produce tensile stress.Therefore, above-mentioned tensile stress can cause this concrete slab be positioned at part on this concrete part 15 around produce the crack.

Summary of the invention

Problem to be solved by this invention

Therefore, made the present invention under the situation of the problem that in keeping prior art firmly in mind, occurs, and the objective of the invention is for a kind of structure and method that adopts end plate and steel bracket that a plurality of PSC-I beams are coupled together is provided, this structure and method are with only to adopt arrangement of reinforcement to be connected the ordinary construction of a plurality of PSC-I beams with concrete different, this end plate and steel bracket have higher structure durable, so these PSC-I beams can link together securely.

Another object of the present invention is for a kind of structure and method that a plurality of PSC-I beams are coupled together is provided, this structure and method make only has a block bearing to support this PSC-I beam on each bridge pier, has therefore solved the defective that a plurality of block bearing of available technology adopting is brought.

The technical scheme that addresses the above problem

In a scheme, the invention provides a kind of structure that a plurality of PSC-I beams are joined to one another of being used for, a metallic conduit (sheath pipe) of placing prestressed cable is all arranged in each structure.This beam syndeton comprises that one is installed in the end plate on each end of each PSC-I beam, is provided with a through hole in the upper end of this end plate, and this through hole is corresponding with the metallic conduit of placement prestressed cable in being imbedded at each PSC-I beam; Be provided with a steel bracket on this end plate integratedly, this steel bracket is vertical with this end plate, and therefore the steel bracket on the end plate of adjacent PSC-I beam is in alignment with each other, and the PSC-I beam is linear simultaneously installs; One rack connecting plate is connected to each other the steel bracket that aligns and is integral; Be arranged on the bottom junction plate of lower end of the steel bracket of this alignment, be used for steel bracket is joined to one another; Be arranged on the connection metallic conduit of the placement prestressed cable between the PSC-I beam, when the PSC-I beam is good by linear arrangement, the two ends of the connection metallic conduit of this placement prestressed cable are injected in the through hole in the adjacent end plate of PSC-I beam separately, thus, the metallic conduit of the placement prestressed cable of this PSC-I beam is joined to one another; In linear each other linking together, a prestressed cable is inserted the PSC-I beam PSC-I beam the placement prestressed cable metallic conduit and place being connected in the metallic conduit of prestressed cable, this PC cable wire is subjected to prestressing force so that prestressing force is passed to the PSC-I beam in the connection metallic conduit of the metallic conduit of this placement prestressed cable and placement prestressed cable; And be cast in two concrete parts in the space between the PSC-I beam, so that steel bracket, rack connecting plate that aligns and the connection metallic conduit of placing prestressed cable are embedded in this concrete part.

In another program, the invention provides a kind of method that a plurality of PSC-I beams are joined to one another, metallic conduit of placing prestressed cable all in each PSC-I beam.This couples together method with beam and comprises, an end plate is installed on each end at each PSC-I beam two ends, in the upper end of this end plate one through hole is set, and this through hole is corresponding with the metallic conduit of placement prestressed cable in being imbedded at each PSC-I beam; One steel bracket is set on this end plate integratedly, and this steel bracket is vertical with this end plate; The PSC-I beam is placed on some bridge piers, on a bottom junction plate that is placed on the block bearing steel bracket on the adjacent end plate of PSC-I beam is in alignment with each other simultaneously, this block bearing is installed on each bridge pier; The steel bracket of the alignment on the adjacent end plate of PSC-I beam is installed on this bottom junction plate, so that steel bracket is joined to one another; One rack connecting plate being installed on the steel bracket of alignment on one side steel bracket with alignment is connected to each other and is integral; One vertical connecting bolt is arranged in the top of the steel bracket of this alignment, so that the steel bracket of alignment is joined to one another; The one connection metallic conduit of placing prestressed cable is placed between the PSC-I beam, thereby insert in the through hole in the adjacent end plate of PSC-I beam separately at the two ends of make placing the connection metal tube of prestressed cable when the PSC-I beam is good by linear arrangement, thus, the metallic conduit of placing prestressed cable is joined to one another; In linear each other linking together, a prestressed cable (PC cable wire) is inserted the metallic conduit of placement prestressed cable and being connected in the metallic conduit of placement prestressed cable of PSC-I beam with the PSC-I beam; And this PC cable wire is applied prestressing force so that prestressing force is passed to the PSC-I beam; And with in the space of concrete pouring between two PSC-I beams so that form the concrete part, therefore steel bracket, the rack connecting plate of alignment and the connection metallic conduit of placing prestressed cable are embedded in this concrete part.

The effect of invention

As mentioned above, the invention provides a kind of structure and method that adopts steel bracket, rack connecting plate, vertical connecting bolt, bottom junction plate and concrete part that some PSC-I beams 1 are coupled together, it is different from the ordinary construction that adopts some arrangements of reinforcement and concrete part that these PSC-I beams are coupled together.That is to say that beam syndeton of the present invention can be connected to each other these PSC-I beams together more firmly than common beam syndeton, this common beam syndeton can not be enough to these PSC-I beams be joined to one another form one between the strutbeam system.

And beam syndeton of the present invention has one to pass the prestressed cable that all stride the beam layout.Therefore, this prestressing force can also be delivered to the concrete part in the space that is cast between the PSC-I beam equably except can being delivered to this PSC-I beam.Thereby, have the tensile stress that the bridge of this beam syndeton can be effectively produces a kind of negative momentum and respond.

In addition, the intensity with bridge of beam syndeton of the present invention is enough to the negative momentum that produces in the space that limits between the PSC-I beam is responded.Therefore, the bridge with beam syndeton of the present invention has been completed into a continuous beam system.Therefore, compare with the common beam syndeton with strutbeam system, the size of each PSC-I beam and construction cost all can reduce.

And even beam syndeton of the present invention only has a block bearing on each bridge pier, these are different with the common beam syndeton that has at least two block bearings on each bridge pier shown in Figure 1B, and this bridge is enough to be bearing on this bridge pier.

Brief Description Of Drawings

Can more be expressly understood above-mentioned and other purpose, feature and other advantage of the present invention according to the detailed description of carrying out below in conjunction with accompanying drawing.

Shown in Figure 1A is the lateral view with the Two Span Bridge that is used for ordinary construction that two PSC-I beams are coupled together;

Shown in Figure 1B be another kind be used for ordinary construction that a plurality of PSC-I beams are coupled together lateral view;

Shown in Figure 2 is adopts one of them sectional view of these a plurality of PSC-I beams that are used for connecting the structure of a plurality of PSC-I beams and are joined to one another according to an embodiment of the invention;

Shown in Figure 3 is the phantom drawing of the part disconnection of the PSC-I beam shown in Fig. 2, has wherein expressed peripheral part of the end of this PSC-I beam;

Shown in Fig. 4 A is with two steps that PSC-I beam line is joined to one another among Fig. 2, wherein in this two PSC-I beams alignment these two PSC-I beams is placed on the bridge pier;

Shown in Fig. 4 B is sectional view along the section A-A among Fig. 4 A;

Shown in Figure 5 is the step that after the Connection Step shown in Fig. 4 A the PSC-I beam among Fig. 2 is coupled together, and wherein, the connection metallic conduit of rack connecting plate and placement prestressed cable is set between the adjacent end plate of this PSC-I beam;

Shown in Fig. 6 A is the lateral view of state that has been illustrated in the structure of the PSC-I beam that is used for connection layout 2 after the Connection Step shown in Figure 5, and wherein, the steel bracket of this alignment is connected with each other by rack connecting plate;

Shown in Fig. 6 B is sectional view along the section B-B among Fig. 6 A;

The sectional view that shown in Figure 7 is along the cross section C-C among Fig. 6 B;

Shown in Figure 8 is is used for the decomposition diagram of structure of the PSC-I beam of connection layout 2;

Shown in Figure 9 is the phantom drawing of the part disconnection of the beam syndeton in the presentation graphs 8, wherein, is cast with the concrete part in the space that limits between the PSC-I beam; And

Shown in Figure 10 is has the sectional view that three of three PSC-I beams being joined to one another by beam syndeton shown in Figure 9 are striden bridge, wherein expresses prestressed cable and is arranged in these three PSC-I beams.

The specific embodiment

Below, with reference to the accompanying drawings embodiments of the invention are described in detail.

Following quoted figures mark, wherein, identical Reference numeral refers to identical or similar element in all different accompanying drawings.

Fig. 2 is one of them the sectional view that adopts these a plurality of PSC-I beams that are used for connecting the structure of a plurality of PSC-I beams and are joined to one another according to an embodiment of the invention.Shown in Figure 3 is the phantom drawing of the part disconnection of the PSC-I beam shown in Fig. 2, has wherein expressed peripheral part of the end of this PSC-I beam.Shown in Fig. 2 and 3, in beam syndeton of the present invention, the metallic conduit 18 of a placement prestressed cable is arranged all in each PSC-I Liangqi that adopts concrete to make.That is to say, when producing PSC-I beam 1, in this concrete, imbed the metallic conduit 18 of placing prestressed cable in advance.Hold a prestressed cable in the metallic conduit 18 of this placement prestressed cable.This beam syndeton of the present invention comprises end plate 4, and this end plate is installed on one of them end at two ends of PSC-I beam.

Particularly, in prefabricated each PSC-I beam 1, in advance some anchor bolts 7 are embedded in exactly in the concrete of at least one end in the two ends of each PSC-I beam 1.Afterwards, end plate 4 is assemblied in the end of a plurality of anchor bolts 7.Afterwards, nut 13 is fastened on each anchor bolt 7 so that end plate 4 is connected on the end of PSC-I beam 1.

In beam syndeton of the present invention, by welding manner two steel brackets 6 are set integratedly on each end plate 4, this steel bracket is perpendicular to this end plate 4.Be provided with a through hole 5 on the top of this end plate 4, this through hole is corresponding with the metallic conduit 18 of placement prestressed cable in being embedded in each PSC-I beam 1.Be provided with some bolts hole on each steel bracket 6, make steel bracket to be connected on a kind of following rack connecting plate 9 by some connecting bolts 10 and attaching nut 10a, these will be described in detail below.

Shown in Fig. 4 A is with two steps that PSC-I beam line is joined to one another among Fig. 2, wherein in this two PSC-I beams alignment these two PSC-I beams is placed on the bridge pier.Shown in Fig. 4 B is sectional view along the section A-A among Fig. 4 A.

Shown in Fig. 4 A and 4B, before PSC-I beam 1 is placed on the bridge pier 2, block bearing 3 is arranged on the bridge pier 2.Around the block bearing on the bridge pier 23, some temporary support spares 14 are set so that the adjacent end portion of PSC-I beam 1 is bearing on the bridge pier 2.Bottom junction plate 8 is placed on this block bearing 3.Afterwards, will be on the ground when the adjacent end portion with PSC-I beam 1 is bearing on these temporary support spares 14 separately prefabricated PSC-I beam 1 be placed on bridge pier 2 above.At this moment, on this bottom junction plate 8, the steel bracket on the adjacent end portion of PSC-I beam 16 is in alignment with each other.Bottom by the steel bracket 6 of welding on will this adjacent end plate 4 is installed on this bottom junction plate 8, makes this steel bracket 6 be connected with each other.

Shown in Figure 5 is the step that after the Connection Step shown in Fig. 4 A the PSC-I beam 1 among Fig. 2 is coupled together, and wherein, the connection metallic conduit 19 of rack connecting plate 9 and placement prestressed cable is set between the adjacent end plate 4 of this PSC-I beam 1.

As shown in Figure 5, the connection metallic conduit 19 of this placement prestressed cable is set between this PSC-I beam 1, in PSC-I beam linear arrangement, make the two ends of connection metallic conduit 19 of this placement prestressed cable insert respectively in the through hole 5 on the top of the adjacent end plate 4 that is separately positioned on this PSC-I beam 1.By arrange placing the connection metallic conduit 19 of prestressed cable, the metallic conduit 18 of the placement prestressed cable in the PSC-I beam 1 is joined to one another.

Simultaneously, two rack connecting plates 9 are arranged on the both sides of steel bracket 6 of the alignment of adjacent end plate 4 separately.The steel bracket 6 of this rack connecting plate 9 and alignment is connected to each other by these connecting bolts 10 and these nuts 10a and is integral.Therefore, except this rack connecting plate 9, the steel bracket 6 of this alignment also is joined to one another by this bottom junction plate 3.

Shown in Fig. 6 A is the lateral view of state that has been illustrated in the structure of the PSC-I beam that is used for connection layout 2 after the Connection Step shown in Figure 5, and wherein, the steel bracket of this alignment is connected with each other by rack connecting plate.Shown in Fig. 6 B is sectional view along the section B-B among Fig. 6 A.Shown in Fig. 6 A and 6B, the steel bracket 6 of this alignment also is joined to one another by some vertical connecting bolts 12.That is to say, be provided with a bolt keeper 11 in the upper end of each steel bracket 6 of PSC-I beam 1.This vertical connecting bolt 12 is passed two bolt keepers 11 of the steel bracket 6 of this alignment, attaching nut 21 is fastened on each vertical connecting bolt 12 simultaneously.Therefore, by this vertical connecting bolt 12 and attaching nut 21 and more firmly this steel bracket 6 is joined to one another.At this moment, this bolt keeper 11 is installed on the upper support plate 22, this upper support plate is arranged on the upper end of each steel bracket 6.

The sectional view that shown in Figure 7 is along the cross section C-C among Fig. 6 B.As mentioned above, the metallic conduit 18 of the placement prestressed cable of this PSC-I beam 1 is connected to each other together state by the connection metallic conduit 19 of placing prestressed cable under, a prestressed cable 20 is inserted continuously the metallic conduit 18 of this placements prestressed cable and being connected in the metallic conduit 19 of placement prestressed cable.Especially, though this PSC-I beam 1 be placed at least two holes above the time, this cable wire 20 also inserts being connected metallic conduit 19 and passing each bridge opening of each metallic conduit 18 of placing prestressed cable and placement prestressed cable continuously.At this, after the concrete of can in the space that PSC-I beam 1 is determined, having cast this cable wire 20 is inserted the metallic conduit 18 of this placement prestressed cable and being connected in the metallic conduit 19 of this placement prestressed cable, this will be explained hereinafter.Before or after following concrete slab 16 is configured on the PSC-I beam 1, inserts each metallic conduit 18 of placing prestressed cable and be subjected to prestressing force so that prestressing force is passed to PSC-I beam 1 with the cable wire 20 that is connected in the metallic conduit 19 of placing prestressed cable.

Shown in Figure 8 is is used for the decomposition diagram of structure of the PSC-I beam of connection layout 2; Shown in Fig. 7 institute, after the steel bracket 6 of this PSC-I beam 1 is joined to one another, thereby form a concrete part 15 in the space that concrete pouring is limited between PSC-I beam 1.Therefore, the connection metallic conduit 19 of the steel bracket 6 of this alignment, rack connecting plate 9 and placement prestressed cable is embedded in this concrete part 15.Shown in Figure 9 is the phantom drawing of the part disconnection of the beam syndeton in the presentation graphs 8, and wherein, above-mentioned concrete part 15 is cast in the space that limits between the PSC-I beam 1.Shown in Figure 10 is has the sectional view that three of three PSC-I beams 1 being joined to one another by beam syndeton shown in Figure 9 are striden bridge, wherein expresses prestressed cable 20 and is arranged in these three PSC-I beams 1.As shown in Figures 9 and 10, the temporary support spare 14 that is arranged on the below of PSC-I beam 1 is withdrawn after concrete part 15 is cast in the space between this PSC-I beam 1.Therefore, only there is the block bearing 3 on each bridge pier 2 supporting bridge with beam syndeton of the present invention.

As mentioned above, these PSC-I beams 1 link together each other securely by beam syndeton of the present invention.Therefore, the bridge with beam syndeton of the present invention forms a kind of continuous beam system.Therefore, the bridge with this beam syndeton has reduced the positive momentum of generation in PSC-I beam 1, thereby can reduce the size of this PSC-I beam 1 for the bridge that adopts common beam syndeton.

Generally speaking, for the situation of bridge, can reduce positive momentum with continuous beam system.But, the dead load that produces by the weight of concrete slab 16 and the additional flexible pavement negative momentum that can produce on the top of bridge.Under above-mentioned state, when automobile passed through this bridge, this negative momentum will increase.

In bridge, also can in this bridge, produce above-mentioned negative momentum with beam syndeton of the present invention.But, beam syndeton of the present invention has vertical connecting bolt 12 that some are used to offset the tensile stress that is produced by negative momentum.And as above described with reference to Fig. 7, this prestressed cable 20 is installed in this bridge continuously.Therefore this prestressed cable 20 also can be offset this tensile stress.

Although for the purpose of setting forth has disclosed the preferred embodiments of the present invention, but those having ordinary skill in the art will appreciate that, can improve the present invention under the scope of the present invention that claims after not breaking away from pair are disclosed and the situation of design, add and replacement.

Reference numeral:

1.PSC-I beam

4. end plate

5. through hole

6. steel bracket

7. anchor bolt

9. rack connecting plate

12. vertical connecting bolt

18. place the metallic conduit of prestressed cable

20. prestressed cable

Claims (4)

1. one kind is used for structure that a plurality of prestressed concrete i beams (PSC-I beam) (1) are joined to one another, and a metallic conduit (sheath pipe) (18) of placing prestressed cable is all arranged in each structure, and this structure comprises:
Be installed in the end plate (4) on each end of each PSC-I beam, be provided with a through hole (5) on the top of this end plate, this through hole is corresponding with the metallic conduit (18) of placement prestressed cable in being imbedded at each PSC-I beam;
Be provided with steel bracket (6) on this end plate (4) integratedly, this steel bracket (6) is vertical with this end plate (4), makes that in PSC-I beam 1 linear arrangement the steel bracket (6) on the adjacent end plate (4) of PSC-I beam (1) is in alignment with each other;
Steel bracket (4) rack connecting plate (9) that is connected to each other and is integral with alignment;
Be arranged on the bottom junction plate (8) of lower end of the steel bracket (6) of this alignment, be used for steel bracket (4) is joined to one another;
Be arranged on the connection metallic conduit (19) of the placement prestressed cable between the PSC-I beam (1), when the PSC-I beam is good by linear arrangement, the two ends of the connection metallic conduit (19) of this placement prestressed cable are injected in the through hole (5) in the adjacent end plate (4) of PSC-I beam (1) separately, thus, the metallic conduit (18) of the placement prestressed cable of this PSC-I beam (1) is joined to one another;
Prestressed cable (20), this prestressed cable (20) is inserted into the metallic conduit (18) of placement prestressed cable and being connected in the metallic conduit (19) of this placement prestressed cable of PSC-I beam in linear each other the linking together with PSC-I beam (1), and this cable wire is subjected to prestressing force so that prestressing force is passed to PSC-I beam (1) in the connection metallic conduit (19) of the metallic conduit (18) of this placement prestressed cable and this placement prestressed cable; And
Be cast in the concrete part (15) in the space between two PSC-I beams (1), so that the connection metallic conduit (19) of the steel bracket that will align (6), this rack connecting plate (9) and this placement prestressed cable is embedded in this concrete part.
2. structure as claimed in claim 1, it also comprises: be arranged on vertical connecting bolt (12) on top of the steel bracket (6) of this alignment, so that this steel bracket (6) is joined to one another.
3. structure as claimed in claim 1, it also comprises:
Be arranged on the block bearing on each bridge pier (2),
Wherein this bottom junction plate (8) is arranged on this block bearing, and the lower end of the steel bracket of this alignment (6) is installed on this bottom junction plate (8), makes this steel bracket (6) be joined to one another.
4. method that a plurality of PSC-I beams (1) are joined to one another, metallic conduit (18) of placing prestressed cable all in each PSC-I beam, this method comprises:
One end plate (4) is installed on each end at each PSC-I beam two ends, a through hole (5) is set in the upper end of this end plate, this through hole is corresponding with the metallic conduit (18) of placement prestressed cable in being imbedded at each PSC-I beam;
Steel bracket (6) is set on this end plate (4) integratedly, and this steel bracket is vertical with this end plate;
The PSC-I beam is placed on some bridge piers (2), upward the steel bracket (6) on the adjacent end plate (4) of PSC-I beam is in alignment with each other at a bottom junction plate (8) that is placed on the block bearing simultaneously, this block bearing is installed on each bridge pier;
The steel bracket (6) of the alignment on the adjacent end plate (4) of PSC-I beam is installed on this bottom junction plate (8), so that steel bracket (6) is joined to one another;
The steel bracket (6) that one rack connecting plate (9) is installed to alignment is gone up so that the steel bracket (6) of alignment is connected to each other and is integral;
One vertical connecting bolt (12) is arranged in the top of the steel bracket (6) of this alignment, so that the steel bracket of alignment is joined to one another;
The one connection metallic conduit (19) of placing prestressed cable is placed between the PSC-I beam, thereby insert in the through hole (5) in the adjacent end plate of PSC-I beam separately at the two ends of make placing the connection metal tube (19) of prestressed cable when the PSC-I beam is good by linear arrangement, thus, the metallic conduit (18) of placing prestressed cable is joined to one another;
In linear each other linking together, a prestressed cable (PC cable wire) (20) is inserted the metallic conduit (18) of placement prestressed cable and being connected in the metallic conduit (19) of placement prestressed cable of PSC-I beam with the PSC-I beam; And this PC cable wire (20) is applied prestressing force so that prestressing force is passed to the PSC-I beam; And
With in the space of concrete pouring between two PSC-I beams so that form concrete part (15), therefore steel bracket (6), the rack connecting plate (9) of alignment and connection metal tube (19) road of placing prestressed cable are embedded in this concrete part (15).
CNB2004100338067A 2003-12-23 2004-04-14 Structure and method of connecting I-type prestressed concrete beams using steel brackets CN100417771C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020030095319 2003-12-23
KR20030095319A KR100621539B1 (en) 2003-12-23 2003-12-23 Method for connecting continuously P.S.C-Ibeam by steel bracket and its structure

Publications (2)

Publication Number Publication Date
CN1637215A true CN1637215A (en) 2005-07-13
CN100417771C CN100417771C (en) 2008-09-10

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CNB2004100338067A CN100417771C (en) 2003-12-23 2004-04-14 Structure and method of connecting I-type prestressed concrete beams using steel brackets

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US (1) US20050144890A1 (en)
EP (1) EP1548190A3 (en)
JP (1) JP2005180162A (en)
KR (1) KR100621539B1 (en)
CN (1) CN100417771C (en)

Cited By (5)

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CN102086677A (en) * 2009-12-02 2011-06-08 张吉华 Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam
CN102418381A (en) * 2010-09-28 2012-04-18 杨峰 Building structure system combined with steel beam and pre-tensioned prestressing superposed beam and construction method for building structure system
CN102418381B (en) * 2010-09-28 2014-09-17 杨峰 Building structure system combined with steel beam and pre-tensioned prestressing superposed beam and construction method for building structure system
CN103362062A (en) * 2013-01-08 2013-10-23 韩志群 Connector girder
CN105274939A (en) * 2015-09-10 2016-01-27 重庆市轨道交通设计研究院有限责任公司 Connecting device for PC track beam
CN106481021A (en) * 2016-12-16 2017-03-08 福州大学 A kind of prestress combined beam structure and its construction method

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