CN207714129U - A kind of wet seam construction of floorings using T reinforcing bars - Google Patents

A kind of wet seam construction of floorings using T reinforcing bars Download PDF

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Publication number
CN207714129U
CN207714129U CN201721350053.1U CN201721350053U CN207714129U CN 207714129 U CN207714129 U CN 207714129U CN 201721350053 U CN201721350053 U CN 201721350053U CN 207714129 U CN207714129 U CN 207714129U
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China
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floorings
concrete
wet seam
wet
reinforcing bars
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CN201721350053.1U
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秦凤江
尹志伟
狄谨
宋锦瑞
韩斌
朋茜
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Chongqing University
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Chongqing University
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Abstract

Utility model provides a kind of wet seam construction of the floorings using T reinforcing bars.The wet seam construction of the floorings includes the precast concrete floorings that polylith is erected on beam.The closely wet seam side of the precast concrete floorings is embedded with several T reinforcing bars.The sponson of the T reinforcing bar is T anchored ends.T head anchored end interlaced arrangements between adjacent two pieces of precast concrete floorings.The projection of corresponding T anchored ends is overlapped with length.Cast-in-place wet joint concrete in the wet seam, you can connect adjacent two pieces of precast concrete floorings integral.The wet seam construction of the floorings substantially reduces the huge welding job amount that traditional design is brought, and reduces construction cost, reduces the influence to existing traffic, improve construction efficiency, have broad application prospects.

Description

A kind of wet seam construction of floorings using T reinforcing bars
Technical field
The utility model is related to bridge structure technical field, more particularly to a kind of wet seam construction of floorings.
Background technology
In bridge construction, assembled steel-concrete composite beam is due to that can give full play to steel and two kinds of materials of concrete Mechanical property and favored by bridge construction person, and then be widely used in Practical Project;Steel-concrete combined structure Bridge is composed of girder steel and concrete slab, wherein concrete slab can in factory's precast block, after lifting Wet seaming position is combined into steel-concrete composite beam entirety by shear connector and girder steel.Assembly concrete small box girder and T The beam length phase is widely used in the Short/Medium Span Bridge construction in China, since design method and construction technology are ripe, assembled Beams of concrete speed of application is fast, quality is guaranteed, but inevitably pre- between adjacent two panels precast beam in work progress Stay wet seam.For assembled steel-concrete composite beam and assembly concrete beam, wet seam construction allows for the accurate transmission Moment of flexure or shearing cross-section internal force are to ensure that structure is capable of the important feature of total tune stress.
Either the precast concrete floorings of assembled combination beam or prefabricated assembled concrete beam, conventional wet connect Seam mostly uses concrete material with prefabricated beam body with label, and there are mainly two types of modes for the connection of reinforcing bar in conventional wet seam: The first corresponds weldering by the way of reserved annular dowel, by the overlap joint range for reserving steel hoop between adjacent floorings It connects;Second by the way of straight line dowel, by floorings stretch out straight line dowel overlap joint range correspond welding. When the quantity of precast concrete floorings or prefabricated assembled concrete beam is more, have the following problems:(1) wet seam reinforcing bar Welding job amount it is huge, increase material, manually and time cost;(2) the welding procedure time of wet seam reinforcing bar is long, to bridge Under present situation traffic impact it is big;(3) reserved steel bar site welding is of poor quality, and position deviation occurs in floorings reserved steel bar When, it needs to weld again after first correcting reinforcement location, working procedure is cumbersome.
Therefore, those skilled in the art are small there is an urgent need for studying a kind of site operation workload, and construction cost is low, construction efficiency Height, the wet seam connection structure of constructing operation simplicity.
Utility model content
The purpose of this utility model is to provide a kind of wet seam construction of the floorings using T reinforcing bars, to solve existing skill The problem of art.
For realize the utility model aim and the technical solution adopted is that a kind of such, floorings using T reinforcing bars Wet seam construction, including polylith are erected at the precast concrete floorings on longitudinal and transverse beam.Adjacent two pieces of precast concrete floorings Between interval formed along bridge to or direction across bridge wet seam.The closely wet seam side of the precast concrete floorings is embedded with several T reinforcing bars.The sponson of the T reinforcing bar is T anchored ends.T head anchors between adjacent two pieces of precast concrete floorings Fixed end interlaced arrangement.The projection of corresponding T anchored ends is overlapped with length.T reinforcing bars of construction are disposed in the wet seam.Institute It states and is bound using tied silk between T reinforcing bars of construction and T reinforcing bars.Cast-in-place wet joint concrete in the wet seam.Adjacent two pieces Precast concrete floorings are connected integral by neighbouring wet joint concrete.
Further, the precast concrete floorings are precast block floorings.The precast concrete floorings are along vertical Bridge to or direction across bridge is removable is divided into polylith.
The utility model is also disclosed a kind of wet seam construction of the floorings using T reinforcing bars, including more along bridges to placement Precast beam.
Between adjacent two precast beams interval formed along bridge to wet seam.The closely wet seam side of the precast beam is equipped with Floorings horizontal segment.The T head reinforcing bars for extending to wet seam are provided in the floorings horizontal segment.Adjacent bridge panel-level section it Between T head anchored end interlaced arrangements.The projection of corresponding T anchored ends is overlapped with length.Construction T is disposed in the wet seam Head reinforcing bar.It is bound using tied silk between T reinforcing bars of the construction and T reinforcing bars.Cast-in-place wet joint concrete in the wet seam. Adjacent two precast beams are connected integral by neighbouring wet joint concrete.
Further, the T anchored end is used in overhanging steel bar end welding steel, installation nut or welding short steel rod shape At.
Further, the wet joint concrete uses high-performance lower shrinkage or slightly expanded concrete material, concrete strength Grade is not less than C50.
Further, the precast beam is precast concrete T-beam or precast concrete small box girder.
Having the technical effect that for the utility model is unquestionable:
1) it is not necessarily to the welding procedure process of conventional wet seam reserved steel bar, can significantly shorten on-site construction time, saves people Power cost reduces influence of the construction to the present situation traffic under bridge;
2) good anchoring effect of the T reinforcing bars in concrete can reduce the width of wet seam, ensure wet seam stress The construction workload that bridge scene is reduced while performance, helps to ensure that the construction quality of bridge.
Description of the drawings
Fig. 1 is the mixed combination formed precast concrete floorings of steel-and T reinforcing bar schematic diagrames;
Fig. 2 is the wet seam schematic diagram of precast concrete floorings in embodiment 1;
Fig. 3 is T reinforcing bar schematic diagrames in embodiment 1;
Fig. 4 is the wet seam schematic diagram of precast concrete T-beam in embodiment 2;
Fig. 5 is the wet seam schematic diagram of precast concrete small box girder in embodiment 3;
Fig. 6 is T anchored end structural form schematic diagrames.
In figure:Precast concrete floorings 1, precast beam 2, floorings horizontal segment 201, wet seam 3, wet joint concrete 4, T reinforcing bars 5, T anchored ends 501, T reinforcing bars 6 of construction, concrete slab regular reinforcement 7.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail, but should not be construed the above-mentioned master of the utility model Topic range is only limitted to following embodiments.It is common according to this field in the case where not departing from the above-mentioned technological thought of the utility model Technological know-how and customary means make various replacements and change, should all include within the protection scope of the present utility model.
Embodiment 1:
The present embodiment discloses a kind of mixed combination wet seam construction of formed precast concrete floorings of the steel-using T reinforcing bars, packet Include the precast concrete floorings 1 that polylith is erected on girder steel.
The precast concrete floorings 1 are the top plate of steel-concrete composite beam, in the prefabricated completion of precast plant.It is described pre- It is laid with upper layer and lower layer concrete slab regular reinforcement 7 in 1 panel of concrete slab processed.Referring to Fig. 1, adjacent two pieces prefabricated Interval forms wet seam 3 between concrete slab 1.
The nearly wet seam side of the precast concrete floorings 1 is embedded with T reinforcing bars 5 of upper layer and lower layer.The T reinforcing bar 5 Pre-buried part has length Chong Die with concrete slab regular reinforcement 7 in floorings.The T reinforcing bar 5 stretches out prefabricated mixed The part of solidifying soil floorings 1 is T anchored ends 501.The length direction of the T reinforcing bar 5 is vertical with wet seam length direction.Ginseng See Fig. 1,501 interlaced arrangement of T heads anchored end between adjacent two pieces of precast concrete floorings 1.Referring to Fig. 2, two pieces prefabricated mixed The projection of the T heads anchored end 501 of solidifying soil 1 respective layer of floorings is overlapped with certain length.It is cast-in-place in the wet seam 3 wet to connect Stitch concrete 4.The T anchored end 501 is coated in wet joint concrete.The wet joint concrete 4 uses high-performance Lower shrinkage or slightly expanded concrete material, strength grade of concrete are not less than C50.Adjacent two pieces of precast concrete floorings 1 are logical Overly moist joint concrete 4 connects integral.
Referring to Fig. 3, stress and tectonic sieving demand, in the present embodiment, the T anchored end are anchored according to practical structures 501 weld anchor plate using high-speed friction soldering method in steel bar end.Anchor plate can resist pulling capacity suffered by reinforcing bar.Phase The arrangement form of T anchored ends 501 avoids conventional wet seam construction reserved steel bar between adjacent two pieces of precast concrete floorings 1 Between welding procedure.Pass through cohesive force, frictional resistance and T anchorings between T anchored ends 501 and wet joint concrete 4 Steel plate pressure-bearing transmits axle power, moment of flexure and shearing, and then ensures that the precast concrete floorings 1 of wet seam both sides can become whole Body, cooperative bearing.
It is worth noting that when bridge span is larger or wider width, the precast concrete floorings 1 can be along vertical bridge To or direction across bridge be split as polylith prefabricated board.
Embodiment 2:
The present embodiment discloses a kind of wet seam construction of the floorings using T reinforcing bars, including more along bridges to the pre- of setting Beam 2 processed.
Referring to Fig. 3, the precast beam 2 is precast concrete T-beam.Interval is formed suitable between adjacent two precast beams 2 Bridge to wet seam 3.The nearly wet seam side of the precast beam 2 is precast beam floorings horizontal segment 201.Referring to precast beam described in Fig. 3 The T heads reinforcing bar 5 for extending to wet seam 3 is provided in floorings horizontal segment 201.T heads between adjacent bridge panel-level section 201 501 interlaced arrangement of anchored end.The projection of corresponding T anchored ends 501 is overlapped with length.
Cast-in-place wet joint concrete 4 in the wet seam 3.The wet joint concrete 4 uses high-performance lower shrinkage or micro- Expansive concrete material, strength grade of concrete are not less than C50.The T anchored end 501 is coated on wet joint concrete In.Adjacent two precast beams 2 are connected integral by wet joint concrete 4.
Embodiment 3:
The present embodiment discloses a kind of wet seam construction of the floorings using T reinforcing bars, including more along bridges to the pre- of setting Beam 2 processed.
Referring to Fig. 4, the precast beam 2 is precast concrete small box girder.It is spaced and is formed between adjacent two precast beams 2 Along bridge to wet seam 3.The nearly wet seam side of the precast beam 2 is precast beam floorings horizontal segment 201.The precast beam floorings The T heads reinforcing bar 5 for extending to wet seam 3 is provided in horizontal segment 201.T head anchored ends between adjacent bridge panel-level section 201 501 interlaced arrangements.Projection of the corresponding T anchored ends 501 along wet seam length direction is overlapped with length.
Cast-in-place wet joint concrete 4 in the wet seam 3.The wet joint concrete 4 uses high-performance lower shrinkage or micro- Expansive concrete material, strength grade of concrete are not less than C50.The T anchored end 501 is coated on wet joint concrete In.Adjacent two precast beams 2 are connected integral by wet joint concrete 4.
It is worth noting that referring to Fig. 6, a variety of structural forms can be used in T anchored ends 501.T anchored ends 501 use High-speed friction weldering processing when, anchored end end form can be used circular steel plate, full-elliptic, square plate, rectangular steel plates or Bar dowel.When T anchored ends 501 are using cold working screw thread, tapped cylindrical steel plate or nut can be used in end form Anchor.

Claims (6)

1. a kind of wet seam construction of floorings using T reinforcing bars, it is characterised in that:It is erected on longitudinal and transverse beam including polylith Precast concrete floorings (1);Between adjacent two pieces of precast concrete floorings (1) interval formed along bridge to or direction across bridge Wet seam (3);The nearly wet seam side of the precast concrete floorings (1) is embedded with several T reinforcing bars (5);The T reinforcing bar (5) sponson is T anchored ends (501);T head anchored ends (501) between adjacent two pieces of precast concrete floorings (1) Interlaced arrangement;The projection of corresponding T anchored ends (501) is overlapped with length;T steel of construction are disposed in the wet seam (3) Muscle (6);It is bound using tied silk between T reinforcing bars (6) of the construction and T reinforcing bars (5);It is cast-in-place in the wet seam (3) wet to connect Stitch concrete (4);Adjacent two pieces of precast concrete floorings (1) are connected integral by neighbouring wet joint concrete (4).
2. the wet seam construction of a kind of floorings using T reinforcing bars according to claim 1, it is characterised in that:It is described pre- Concrete slab (1) processed is precast block floorings;The precast concrete floorings (1) along vertical bridge to or direction across bridge it is removable It is divided into polylith.
3. a kind of wet seam construction of floorings using T reinforcing bars, it is characterised in that:Including more along precast beam from bridges to placement (2);
Between adjacent two precast beams (2) interval formed along bridge to wet seam (3);The nearly wet seam of the precast beam (2) Side is equipped with floorings horizontal segment (201);It is provided with the T head reinforcing bars for extending to wet seam (3) in the floorings horizontal segment (201) (5);T head anchored end (501) interlaced arrangement between adjacent bridge panel-level section (201);The throwing of corresponding T anchored ends (501) Shadow is overlapped with length;T reinforcing bars (6) of construction are disposed in the wet seam (3);T reinforcing bars (6) of the construction and T steel It is bound using tied silk between muscle (5);Cast-in-place wet joint concrete (4) in the wet seam (3);Adjacent two precast beams (2) are logical It is integral to cross neighbouring wet joint concrete (4) connection.
4. the wet seam construction of a kind of floorings using T reinforcing bars according to claim 1 or 3, it is characterised in that:It is described T anchored ends (501) are formed using in overhanging steel bar end welding steel, installation nut or welding short steel rod.
5. the wet seam construction of a kind of floorings using T reinforcing bars according to claim 1 or 3, it is characterised in that:It is described Wet joint concrete (4) uses high-performance lower shrinkage or slightly expanded concrete material, strength grade of concrete to be not less than C50.
6. the wet seam construction of a kind of floorings using T reinforcing bars according to claim 3, it is characterised in that:It is described pre- Beam (2) processed is precast concrete T-beam or precast concrete small box girder.
CN201721350053.1U 2017-10-18 2017-10-18 A kind of wet seam construction of floorings using T reinforcing bars Active CN207714129U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403214A (en) * 2018-11-21 2019-03-01 三峡大学 A kind of the band transversely and horizontally hinge at shear reinforcement and default slot interface seam construction and its construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403214A (en) * 2018-11-21 2019-03-01 三峡大学 A kind of the band transversely and horizontally hinge at shear reinforcement and default slot interface seam construction and its construction method

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