CN108442596A - The wet seam steel bar connecting structure of precast concrete beam - Google Patents
The wet seam steel bar connecting structure of precast concrete beam Download PDFInfo
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- CN108442596A CN108442596A CN201810362138.4A CN201810362138A CN108442596A CN 108442596 A CN108442596 A CN 108442596A CN 201810362138 A CN201810362138 A CN 201810362138A CN 108442596 A CN108442596 A CN 108442596A
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- steel bar
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 100
- 238000005452 bending Methods 0.000 claims abstract description 37
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 30
- 238000009434 installation Methods 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 84
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241000826860 Trapezium Species 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of wet seam steel bar connecting structures of precast concrete beam, including the straight reinforcing bar in lateral upper layer being partly embedded in precast concrete beam and lateral lower layer bending reinforcing steel bar, the semiclosed bar construction that the lateral straight reinforcing bar in upper layer is correspondingly arranged up and down in the vertical direction with lateral lower layer bending reinforcing steel bar in each precast concrete beam and formation end overlaps in seam, corresponding semiclosed bar construction partially overlaps to form trapezoidal overlap in the horizontal direction in two panels precast concrete beam；The wet seam steel bar connecting structure of precast concrete beam further comprises being longitudinally arranged at longitudinal upper layer in seam and runs through reinforcing bar through reinforcing bar and longitudinal lower layer.The wet seam steel bar connecting structure of precast concrete beam of the present invention is laterally forming the bar construction with trapezoidal overlap using the bilevel lateral straight reinforcing bar in upper layer and lateral lower layer bending reinforcing steel bar, it is longitudinal that the longitudinally connected trapezoidal overlap of reinforcing bar is run through through reinforcing bar and longitudinal lower layer using bilevel upper layer, facilitate processing and installation.
Description
Technical field
The present invention relates to precast concrete beam assembling technique fields, in particular to a kind of wet seam reinforcing bar of precast concrete beam
Connection structure.
Background technology
Precast assembly beams of concrete can be conducive to improve construction quality, shorten the project construction duration, save building materials,
It reduces project cost, improve comprehensive economic results in society, be always the chief component of Mid and minor spans routine bridge construction.By
In the limitation of the abilities such as transport, lifting, precast assembly beams of concrete generally uses fragment prefabricated, the mode of live transversely assembly
Formed it is whole, install after affiliated facility can open to traffic for operating.Because field engineering amount is small, convenient, cast-in-place coagulation of constructing
The wet seam connection of soil is that precast concrete beam assembly connects the most commonly used connection structure.
Currently, comprehensive precast concrete beam stress, prefabricated and transport needs, often selection is prefabricated in two panels for cast-in-place wet seam
Intermediate position between beams of concrete.Under affiliated facility and operation load action, main internal force is moment of flexure and shearing, phase at this
The stress answered can synthesize principal tensile stress and principal compressive stress in stress-space, and cast-in-place wet seam connection reinforcing bar is for resisting main drawing
The pulling force of stress synthesis.Therefore, connection reinforcing bar form for reliability that precast concrete beam connects, property easy for construction very
It is important.Cast-in-place wet seam connection reinforcing bar form existing at present mainly has annular overlap joint, the increased bar splicing of strap end portion and spiral shell
Revolve three kinds of muscle socket etc..
For annular overlapped reinforcing bar since levels reinforcing bar is monoblock type, overlapping regions is enclosure space, is not easy to middle part and passes through
The installation of reinforcing bar is worn, the arc section of end and the direction of principal tensile stress deviate big and be curve, and be unfavorable for reinforced steel bar strength has
Effect utilizes.The increased bar splicing of strap end portion need to additionally increase concrete cover to reinforcement thickness since end fitting increases,
It is unfavorable for the performance of the lower reinforced steel bar strength of curved scissors effect, and end aggrandizement apparatus needs special process to manufacture, the construction supply of material is limited to supply
Trader does not utilize the coordination of construction period to control.The bar connecting of spiral bar socket then passes through spiral bar set in the presence of connection reinforcing bar
The concrete power transmission in section is connect, spiral bar is passive stress, limited to socket section inner concrete constraint, and spiral bar is socketed length
Length, bonding strength are low, need to additionally increase connection concrete cover to reinforcement thickness to ensure spiral tendon protective layer thickness and spiral shell
The problems such as rotation muscle location difficulty, installation accuracy are not easy to ensure.
Based on the above, it is necessary to study a kind of not only reasonable stress, but it is wet convenient for building site processing, the precast concrete beam of installation
Seam steel bar connecting structure.
Invention content
The object of the present invention is to provide a kind of wet seam bar connecting knots of the precast concrete beam of installation easy to process
Structure.
To achieve the above object, the wet seam steel bar connecting structure of precast concrete beam designed by the present invention is arranged two
In the longitudinal spliced precast concrete beam of piece and the cast-in-place joint concrete being cast between two precast concrete beams；Institute
It includes that the lateral upper layer that is embedded in the precast concrete beam of part is straight to state the wet seam steel bar connecting structure of precast concrete beam
Reinforcing bar and lateral lower layer's bending reinforcing steel bar, under the straight reinforcing bar in the lateral upper layer, the transverse direction in each precast concrete beam
The layer longitudinally spaced setting of bending reinforcing steel bar, in each precast concrete beam the lateral straight reinforcing bar in upper layer under the transverse direction
Layer bending reinforcing steel bar is correspondingly arranged and is formed in seam in the vertical direction the semiclosed bar construction that end overlaps, two panels up and down
The corresponding semiclosed bar construction partially overlaps to form trapezoidal overlap in the horizontal direction in the precast concrete beam；
The wet seam steel bar connecting structure of precast concrete beam further comprises being longitudinally arranged at longitudinal upper layer in seam and runs through
Reinforcing bar is run through in reinforcing bar and longitudinal lower layer, and the longitudinal direction upper layer is sequentially connected with the trapezoidal of the trapezoidal overlap along longitudinal direction through reinforcing bar
The corresponding vertex of upper bottom edge, the longitudinal direction lower layer are sequentially connected with the trapezoidal bottom of the trapezoidal overlap through reinforcing bar along longitudinal direction
The corresponding vertex on side.
Preferably, the straight reinforcing bar in the lateral upper layer is straight reinforcing bar horizontally disposed in the horizontal, is partly embedded in
In the precast concrete beam, partly from the precast concrete beam from the side of the precast concrete beam to splicing towards connecing
It is protruded horizontally up in seam.
Preferably, the lateral lower layer bending reinforcing steel bar includes sequentially lower horizontal segment, oblique epimere and upper horizontal segment, institute
It is straight reinforcing bar horizontally disposed in the horizontal to state lower horizontal segment, is partly embedded in the precast concrete beam, partly described in
From the side of the precast concrete beam to splicing towards being protruded horizontally up in seam in precast concrete beam；The oblique epimere is described in
End of the lower horizontal segment in seam bends bending angle and forms obliquely；The upper horizontal segment from the upper end of the oblique epimere towards
Lateral Mosaic face is bent in the horizontal direction.
Preferably, in the same lateral cross section of the same precast concrete beam, the upper horizontal segment with it is corresponding
The latter end of the lateral straight reinforcing bar in upper layer overlap in the horizontal direction.
Preferably, the bending angle chooses 30 °~45 °.
Preferably, in same lateral cross section, the transverse direction straight reinforcing bar in upper layer is with the upper horizontal segment in level
It overlaps on direction, be staggered in the vertical direction.
Preferably, the reinforcement installation straight reinforcing bar of layer and the corresponding upper water in the cross direction are run through in the upper layer
In the gap formed in the vertical direction between flat section.
The beneficial effects of the invention are as follows：The wet seam steel bar connecting structure of precast concrete beam of the present invention passes through pre- in two panels
Tool is laterally formed using the bilevel lateral straight reinforcing bar in upper layer and lateral lower layer bending reinforcing steel bar in seam between beams of concrete processed
There is the bar construction of trapezoidal overlap, it is longitudinal longitudinally connected through reinforcing bar through reinforcing bar and longitudinal lower layer using upper layer and lower layer upper layer
Trapezoidal overlap, the reinforcing bar of trapezoidal overlap are divided into upper layer and lower layer and facilitate longitudinal installation for running through reinforcing bar, the cast-in-place seam poured
Coagulation local soil type can play preferable booster action at interior beam to wet seam, and having improves wet seam stress performance, facilitates installation
The advantages of.
Description of the drawings
Fig. 1 is that the beam portion point of the wet seam steel bar connecting structure of precast concrete beam of preferred embodiment using the present invention is cutd open
Dimensional structure diagram after opening.
Fig. 2 is schematic cross-sectional view of the wet seam steel bar connecting structure of precast concrete beam in Fig. 1 along the directions A-A.
Fig. 3 is before the two panels precast concrete beam of the wet seam steel bar connecting structure of precast concrete beam in Fig. 2 does not splice
Structural schematic diagram.
Fig. 4 is the structural representation of the not cast-in-place wet joint concrete of the wet seam steel bar connecting structure of precast concrete beam in Fig. 2
Figure.
Fig. 5 is the vertical view knot of the not cast-in-place wet joint concrete of the wet seam steel bar connecting structure of precast concrete beam in Fig. 2
Structure schematic diagram.
Fig. 6 is the enlarged structure schematic diagram of lateral lower layer's bending reinforcing steel bar in Fig. 2.
Each part numbers are as follows in figure：Precast concrete beam 10, cast-in-place joint concrete 20,30 (its of steel bar connecting structure
In, reinforcing bar is run through in the straight reinforcing bar 31 in lateral upper layer, lateral lower layer bending reinforcing steel bar 32, longitudinal upper layer through reinforcing bar 33, longitudinal lower layer
34)；Lower horizontal segment 321, oblique epimere 322, upper horizontal segment 323.
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As it was noted above, existing to overcome the problems, such as that existing three kinds cast-in-place wet seams connect reinforcing bar, the present invention is directed to logical
The wet seam steel bar connecting structure of change precast concrete beam is crossed to realize.
It please refers to Fig.1 and Fig. 2, the wet seam steel bar connecting structure 30 of precast concrete beam of the preferred embodiment of the present invention is arranged
At two splice precast concrete beam 10 in and between cast-in-place joint concrete 20 in, steel bar connecting structure 30 forms prefabricated
The reinforcement of beams of concrete 10 and cast-in-place joint concrete 20, connection bar construction.
The straight reinforcing bar 31 in lateral upper layer and lateral lower layer bending reinforcing steel bar 32 are embedded in each precast concrete beam 10, it is adjacent
The lateral straight 31 equidistantly interval setting in the longitudinal direction of reinforcing bar in upper layer, lateral lower layer's bending reinforcing steel bar 32 are similarly equidistant in the longitudinal direction
Interval setting.In same lateral cross section, the straight reinforcing bar in lateral upper layer 31 is correspondingly arranged with about 32 lateral lower layer bending reinforcing steel bar.
In conjunction with refering to Fig. 3 and Fig. 4, in same lateral cross section, two panels precast concrete beam 10 is corresponding in lateral cross section
The straight reinforcing bar 31 in lateral upper layer, the mutually overlap joint of lateral lower layer bending reinforcing steel bar 32 form the overlap of upside-down trapezoid, and (long bottom edge is upper, short
Bottom edge is under), upside-down trapezoid overlap banding fixed.It is (longitudinal that each apex of upside-down trapezoid is vertically arranged with reinforcing bar
Reinforcing bar 34 is run through in upper layer through reinforcing bar 33, longitudinal lower layer).Longitudinal upper layer is longitudinally arranged at the top of overlap through reinforcing bar 33
At joint (two vertex of the top of upside-down trapezoid, the two-end-point on long bottom edge), longitudinal lower layer is overlapping through the setting of reinforcing bar 34
At the lower section joint (two vertex of the lower section of upside-down trapezoid, the two-end-point on short bottom edge) in area.Run through reinforcing bar 33, indulge in longitudinal upper layer
To lower layer through reinforcing bar 34 perpendicular to four vertex of upside-down trapezoid overlap.More specifically, the straight reinforcing bar 31 in lateral upper layer is in cross
Upward horizontally disposed straight reinforcing bar, part are embedded in precast concrete beam 10, partly from precast concrete beam 10 from pre-
The lateral splicing of beams of concrete 10 processed in seam towards protruding horizontally up.Two panels precast concrete beam 10 is corresponding in lateral cross section
The mutual overlap joint (partially overlapping) in the horizontal direction of the straight reinforcing bar in lateral upper layer 31, the weight of the straight reinforcing bar in corresponding two lateral upper layers 31
Close the long bottom edge that section is upside-down trapezoid overlap.
Please refer to Fig. 5 and Fig. 6, lateral lower layer's bending reinforcing steel bar 32 include sequentially lower horizontal segment 321, oblique epimere 322 and
Upper horizontal segment 323, lateral lower layer's bending reinforcing steel bar 32 are bent by straight reinforcing bar.
Lower horizontal segment 321 is straight reinforcing bar horizontally disposed in the horizontal, and part is embedded in precast concrete beam 10, portion
From the side of precast concrete beam 10 to splicing towards being protruded horizontally up in seam point in the precast concrete beam 10.Two panels concrete
The lower horizontal segment 321 of corresponding transverse direction lower layer bending reinforcing steel bar 32 in lateral cross section of native beam 10 mutually overlaps in the horizontal direction
(partially overlapping), the superposition section of corresponding two lower horizontal segments 321 are the short bottom edge of upside-down trapezoid overlap.
Oblique epimere 322 is bent obliquely from end of the lower horizontal segment 321 in seam.Upper horizontal segment 323 is from tiltedly
The upper end of section 322 is inwardly bent (towards lateral Mosaic face) in the horizontal direction.Oblique epimere 322 is oblique from lower horizontal segment 321
On bend, since wet seam crossing direct stress be lower edge is tensile stress under affiliated facility and operation load action, upper limb is
Compression, the principal tensile stress synthesized in stress-space with shear stress, according to of different sizes, the direction of direct stress and shear stress
For angle with horizontal direction generally between 30 °~45 °, the bending angle α of oblique epimere 322 chooses 30 °~45 °, make its direction with
Principal tensile stress direction in cast-in-place joint concrete 20 is almost the same.
The straight reinforcing bar in upper horizontal segment 323 and lateral upper layer 31 mutually overlaps in the horizontal direction in lateral cross section, i.e., upper water
The straight reinforcing bar in flat section 323 and lateral upper layer 31 partially overlaps in the horizontal direction in lateral cross section.
For ease of arranging and binding, in upside-down trapezoid overlap, the lateral straight reinforcing bar 31 in upper layer and lateral lower layer bent steel
The upper horizontal segment 323 of muscle 32 overlaps, is staggered on vertical direction in the horizontal direction, and upper layer can pass through lateral upper layer through reinforcing bar 33
Come in the vertical direction with respect to the spacing that the changing of the relative positions is formed between free end and corresponding upper horizontal segment 323 in the seam of straight reinforcing bar 31
Installation.Upside-down trapezoid overlap at least four apex banding fixeds.
It is corresponding in lateral cross section in a piece of precast concrete beam 10 from the point of view of another angle (as shown in Figure 3)
The straight reinforcing bar 31 in lateral upper layer, end overlaps to form semiclosed bar construction in seam between lateral lower layer's bending reinforcing steel bar 32
The upper horizontal segment 323 of (being inverted right-angled trapezium), the lateral straight reinforcing bar 31 in upper layer and lateral lower layer bending reinforcing steel bar 32 is to be inverted right angle ladder
The long bottom edge (end of the straight reinforcing bar in lateral upper layer 31 overlaps in the horizontal direction with upper horizontal segment 323) of shape, lateral lower layer's bending
The lower horizontal segment 321 of reinforcing bar 32 is the short bottom edge for being inverted right-angled trapezium, and the oblique epimere 322 of lateral lower layer's bending reinforcing steel bar 32 is right angle
Trapezoidal oblique waist.The bar construction of the corresponding inversion right-angled trapezium of two panels precast concrete beam 10 seam inside points overlap,
Docking, forms the overlap of upside-down trapezoid.
Using the carry out precast concrete of the wet seam steel bar connecting structure of the precast concrete beam of the preferred embodiment of the present invention
Steps are as follows for the concatenation construction of beam：
A), the straight reinforcing bar 31 in the lateral upper layer of fixed binding and lateral lower layer are curved respectively in the beam forms of precast concrete beam 10
Roll over reinforcing bar 32.
B), the casting concrete in beam forms completes the prefabricated of precast concrete beam 10.
C) it, needs to position two panels precast concrete beam 10 by the lap of splice in seam, and longitudinal upper layer is installed and runs through reinforcing bar
33, reinforcing bar 34 is run through in longitudinal lower layer.Upper layer through reinforcing bar 33 can in the seam by the straight reinforcing bar in lateral upper layer 31 free end with it is horizontal
It is installed to the upper horizontal segment 323 of lower layer's bending reinforcing steel bar 32 in the spacing of the opposite changing of the relative positions formation of end, by the horizontal direction
Longitudinal upper layer can be installed and run through reinforcing bar 33 by vertically suitably pulling the free end of the straight reinforcing bar in lateral upper layer 31.
D), the seam between two panels precast concrete beam 10 installs joint template, and cast-in-place seam coagulation is poured into seam
Soil 20 completes the cast-in-place wet seam connection of precast concrete beam 10.
It is clearly understood that by above-mentioned record, the advantages of precast concrete beam of the invention wet seam steel bar connecting structure
It is mainly reflected in the following aspects：
(1) the straight reinforcing bar 31 in bilevel lateral upper layer and cross are laterally used in the seam between two panels precast concrete beam 10
The bar construction with inverted trapezoidal overlap is formed to lower layer's bending reinforcing steel bar 32, it is longitudinal that reinforcing bar 33 is run through using upper layer and lower layer upper layer
And the longitudinally connected trapezoidal overlap of reinforcing bar 34 is run through in longitudinal lower layer, the reinforcing bar of trapezoidal overlap is along 10 height side of precast concrete beam
To being evenly distributed, preferable booster action can be played to wet seam by forming interior beam with the cast-in-place joint concrete 20 poured, be had
The advantages of having the wet seam stress performance of improvement, facilitating installation.
(2) in inverted trapezoidal overlap, the transfer angle (bending angle α) of oblique epimere 322 (trapezoidal waist) is 30 °~45 °, is made
Its direction and the principal tensile stress direction in cast-in-place joint concrete 20 are almost the same, and oblique epimere 322 is almost along cast-in-place seam coagulation
The thickness of soil 20 is distributed, and is evenly distributed, and the best characteristic of reinforcing bar axially compressed behavior is utilized to greatest extent, is improved
The utilization rate of reinforcing bar.
(3) the straight reinforcing bar 31 in lateral upper layer and lateral lower layer bending reinforcing steel bar 32 are using binding connection, by ensureing two kinds of reinforcing bars
The reasonable lap of splice realizes effective anchoring on 32 top of lateral lower layer bending reinforcing steel bar.
(4) the trapezoidal overlap joint reinforcing bar that both sides are arranged by selection rationally intersects length, and transposition section inner concrete is made to form week
Controlled inner core concrete longeron is enclosed, according to the experience of related specifications, the bearing capacity of the constrained inner core concrete of surrounding
It about can be improved 2 times.
(5) trapezoidal overlap joint is collectively constituted using the straight reinforcing bar 31 in the lateral upper layer being provided separately and lateral lower layer bending reinforcing steel bar 32
Reinforcing bar, due to can be by the two reinforcing bar in end the spacing that is formed of the opposite changing of the relative positions install inside it is longitudinal run through reinforcing bar,
Easy too much, and the straight reinforcing bar in lateral upper layer are wanted compared with the connections such as conventional annular overlap joint need the installation penetrated over long distances along longitudinal direction
31 and lateral lower layer's bending reinforcing steel bar 32 generally conventional technique processing can be used, process at the construction field (site), install it is very convenient.
In conclusion the wet seam steel bar connecting structure of precast concrete beam of the present invention is the seam in precast concrete beam
Not only reasonable stress but also the bar construction of installation easy to process are set in interior, cast-in-place wet joint concrete, new concrete is provided
The seam bar connecting scheme of Tu Liang.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of wet seam steel bar connecting structure of precast concrete beam is arranged in two longitudinal spliced precast concrete beams (10)
With in the cast-in-place joint concrete (20) that is cast between two precast concrete beams (10), it is characterised in that：It is described pre-
The wet seam steel bar connecting structure of beams of concrete processed is straight including the lateral upper layer that part is embedded in the precast concrete beam (10)
Reinforcing bar (31) and lateral lower layer's bending reinforcing steel bar (32), the straight reinforcing bar in the lateral upper layer in each precast concrete beam (10)
(31), described lateral lower layer bending reinforcing steel bar (32) longitudinally spaced setting, the cross in each precast concrete beam (10)
It is correspondingly arranged and in seam up and down in the vertical direction to the straight reinforcing bar in upper layer (31) and lateral lower layer's bending reinforcing steel bar (32)
Form the semiclosed bar construction that end overlaps, the corresponding semiclosed reinforcing bar knot in precast concrete beam (10) described in two panels
Structure partially overlaps to form trapezoidal overlap in the horizontal direction；The wet seam steel bar connecting structure of precast concrete beam is further
Reinforcing bar (33) and longitudinal lower layer are run through on reinforcing bar (34), the longitudinal direction in longitudinal upper layer including being longitudinally arranged in seam
Layer is sequentially connected with the corresponding vertex of the trapezoidal upper bottom edge of the trapezoidal overlap through reinforcing bar (33) along longitudinal direction, under the longitudinal direction
Layer is sequentially connected with the corresponding vertex of the trapezoidal bottom of the trapezoidal overlap through reinforcing bar (34) along longitudinal direction.
2. the wet seam steel bar connecting structure of precast concrete beam according to claim 1, it is characterised in that：In the transverse direction
The straight reinforcing bar (31) of layer is straight reinforcing bar horizontally disposed in the horizontal, is partly embedded in the precast concrete beam (10), part
Splice from the lateral of the precast concrete beam (10) towards being protruded horizontally up in seam in the precast concrete beam (10).
3. the wet seam steel bar connecting structure of precast concrete beam according to claim 2, it is characterised in that：Under the transverse direction
Layer bending reinforcing steel bar (32) includes sequentially lower horizontal segment (321), oblique epimere (322) and upper horizontal segment (323), the lower horizontal segment
(321) it is straight reinforcing bar horizontally disposed in the horizontal, is partly embedded in the precast concrete beam (10), partly from described pre-
Splice from the lateral of the precast concrete beam (10) towards being protruded horizontally up in seam in beams of concrete (10) processed；The oblique epimere
(322) bending angle (α) is bent obliquely from end of the lower horizontal segment (321) in seam to form；The upper horizontal segment
(323) it is bent in the horizontal direction towards lateral Mosaic face from the upper end of the oblique epimere (322).
4. the wet seam steel bar connecting structure of precast concrete beam according to claim 3, it is characterised in that：It is same described pre-
In the same lateral cross section of beams of concrete (10) processed, the upper horizontal segment (323) and the straight reinforcing bar in the corresponding lateral upper layer
(31) latter end overlaps in the horizontal direction.
5. the wet seam steel bar connecting structure of precast concrete beam according to claim 4, it is characterised in that：The bending angle
(α) chooses 30 °~45 °.
6. planting the wet seam steel bar connecting structure of any one of them precast concrete beam according to claim 4 or 5, feature exists
In：In same lateral cross section, the transverse direction straight reinforcing bar in upper layer (31) weighs in the horizontal direction with the upper horizontal segment (323)
It closes, be staggered in the vertical direction.
7. the wet seam steel bar connecting structure of precast concrete beam according to claim 6, it is characterised in that：The upper layer is passed through
Reinforcing bar (33) is worn to be mounted between the lateral straight reinforcing bar in upper layer (31) and the corresponding upper horizontal segment (323) in vertical direction
In the gap of upper formation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924304A (en) * | 2019-11-26 | 2020-03-27 | 山东大学 | Bridge deck wet joint and construction method and application thereof |
| CN112376400A (en) * | 2020-11-07 | 2021-02-19 | 厦门中亚联合建设工程有限公司 | Wet joint structure of precast concrete beam and construction process thereof |
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| KR100778035B1 (en) * | 2007-01-02 | 2007-11-21 | 김근택 | Half precast concrets slab and coupling structure of bridges use the same |
| CN101245642A (en) * | 2008-03-21 | 2008-08-20 | 天津大学 | Strip shaped partitioned underplate concrete bidirectional laminated slab |
| KR101156013B1 (en) * | 2011-06-21 | 2012-06-18 | (주)삼현피에프 | Method of constructing bride deck using precast concrete deck and bridge superstructure thereof |
| CN204530475U (en) * | 2015-03-30 | 2015-08-05 | 上海市城市建设设计研究总院 | Little width bridge deck wet seam syndeton |
| CN106639093A (en) * | 2017-01-17 | 2017-05-10 | 沈阳建筑大学 | Close splicing seam-type laminated slab |
| CN207228450U (en) * | 2017-05-27 | 2018-04-13 | 中民筑友科技投资有限公司 | A kind of two-way laminated floor slab |
| CN208202272U (en) * | 2018-04-20 | 2018-12-07 | 中交第二公路勘察设计研究院有限公司 | The wet seam steel bar connecting structure of precast concrete beam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924304A (en) * | 2019-11-26 | 2020-03-27 | 山东大学 | Bridge deck wet joint and construction method and application thereof |
| CN110924304B (en) * | 2019-11-26 | 2020-09-22 | 山东大学 | Bridge deck wet joint and construction method and application thereof |
| CN112376400A (en) * | 2020-11-07 | 2021-02-19 | 厦门中亚联合建设工程有限公司 | Wet joint structure of precast concrete beam and construction process thereof |
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