CN208857985U - Wet joint connection structure of precast concrete beams - Google Patents
Wet joint connection structure of precast concrete beams Download PDFInfo
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- CN208857985U CN208857985U CN201820603163.2U CN201820603163U CN208857985U CN 208857985 U CN208857985 U CN 208857985U CN 201820603163 U CN201820603163 U CN 201820603163U CN 208857985 U CN208857985 U CN 208857985U
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 125
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- 229910000831 Steel Inorganic materials 0.000 description 5
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- 239000004566 building material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of wet seam connection structures of precast concrete beam, including precast concrete beam and the cast-in-place cast-in-place wet joint concrete between precast concrete beam；Precast concrete beam includes precast concrete and the overlap joint reinforcing bar being embedded in beam in precast concrete in beam；The middle part of the splicing side of precast concrete is equipped with the tenon of swallow-tail form along its length in beam；Overlap joint reinforcing bar is spaced pre-buried setting in beam in precast concrete on precast concrete beam length direction, and overlap joint reinforcing bar connects in the joint with overlap joint reinforcing bar corresponding in opposite precast concrete beam.The wet seam connection structure of the precast concrete beam of the utility model forms tenon on the Mosaic face of precast concrete beam, and the durability that both direction is self-locking, and raising precast concrete beam connects is collectively formed using the vertical and cross-direction shrinkage of cast-in-place wet joint concrete；It is embedded with the overlap joint reinforcing bar protruded into seam in precast concrete beam, improves the lateral connection intensity of the wet seam connection of cast-in-place wet joint concrete.
Description
Technical field
The utility model relates to precast concrete beam assembling technique fields, in particular to a kind of wet seam of precast concrete beam
Connection structure.
Background technique
Precast assembly beams of concrete is conducive to improve construction quality, shortens the project construction duration, save building materials, reduce
Project cost improves comprehensive economic results in society, is always the chief component of Mid and minor spans routine bridge construction.Due to fortune
The limitation of the abilities such as defeated, lifting, precast assembly beams of concrete generally use fragment prefabricated, and the mode of on-site consolidation forms entirety,
After installation affiliated facility can open to traffic for operating.Because the flange plate of precast concrete beam is connected as whole field engineering amount
It is small, construction is convenient, be the type of attachment of on-site consolidation first choice, it is precast concrete beam flange plate that the wet seam of cast-in-place concrete, which connects,
Connect the most commonly used connection structure.
The fundamental characteristics that autogenous shrinkage is concrete is generated in hardening process, is a kind of unfavorable work under normal conditions
With especially for the bonding occlusion between precast beam and the wet seam of cast-in-place concrete.Since there are prefabrication completions for precast beam
Afterwards deposit beam and transportational process, general there are three the time of the moon, the contraction of concrete is basically completed.The coagulation of cast in situs
Soil is shunk just to be taken place at this time, if precast concrete beam and cast-in-place wet joint concrete interface processing were not at that time, cast in situs
The pulling force that generates of concrete shrinkage both will make gap occur in bonding interface the weakest, lead to rainwater, sprinkling truck
Cleaning water etc. is penetrated into along gap causes steel bar corrosion, influences bridge durability.In addition, precast concrete beam surface and existing at present
The vertical plane of joint surface use is watered, there is bonding malocclusion at interface, infiltration leads to steel bar corrosion, has an impact more
The problem of structure durability.
Therefore, it is necessary to study one kind to make full use of wet seam cast-in-place concrete characteristic, effectively improves precast concrete beam
Surface is engaged the wet seam connection structure of precast concrete beam of performance with cast-in-place wet joint surface bonding, eliminates above-mentioned wet seam and connects
The problem of connecing.
Summary of the invention
The purpose of the utility model is to provide a kind of wet seam connection structures of precast concrete beam, can be improved prefabricated
The durability of beams of concrete connection.
To achieve the above object, the wet seam connection structure of precast concrete beam designed by the utility model, including it is prefabricated
Cast-in-place wet joint concrete between beams of concrete and the cast-in-place precast concrete beam being oppositely arranged at two；It is described prefabricated
Beams of concrete includes precast concrete and being embedded in overlap joint reinforcing bar in the beam in precast concrete in beam；It is prefabricated in the beam
The middle part of the splicing side of concrete is equipped with the tenon of swallow-tail form along its length；The overlap joint reinforcing bar is in the precast concrete beam
Pre-buried setting is spaced on length direction in the beam in precast concrete, the overlap joint reinforcing bar and the opposite concrete
The corresponding overlap joint reinforcing bar connects in the seam in native beam.
Preferably, the transversal cross-section of the tenon is in the isosceles trapezoid that two bottom edges are placed vertically, the isosceles ladder
The long bottom edge of shape is towards in the seam, and the length direction of the tenon is perpendicular to the plane where each overlap joint reinforcing bar.
Preferably, the top on the inside of the tenon, lower section pass through concrete in outer inclined-plane and the beam respectively
The upper surface of soil, lower end face bonding.
Preferably, top, lower section the outer inclined-plane respectively with the upper surface of precast concrete in the beam, under
End face is in the beam at obtuse angle in precast concrete.
Preferably, the vertical angle between the outer inclined-plane and the vertical plane of the tenon 5 °~30 ° it
Between.
Preferably, the angle between the central plane where the waist of the isosceles trapezoid of the tenon and the outer inclined-plane is
90°。
Preferably, the overlap joint reinforcing bar include two horizontally under horizontal bar and camber line disposed in parallel connection
The arched ribs of end of two horizontal bars in the seam, it is laterally opposed in the opposite precast concrete beam to answer
The overlap joint reinforcing bar is overlapped in seam inner part, and the lap of two corresponding overlap joint reinforcing bars forms nose circle shape structure,
Two horizontal bars up and down of each overlap joint reinforcing bar are located above and below the tenon.
Preferably, the lap of two corresponding overlap joint reinforcing bars is bound or is welded and fixed.
Preferably, cableway, the cableway packet are further embedded in the beam in precast concrete
It includes the longitudinal rib of vertical direction setting and the crotches of the longitudinal rib two ends is set, the crotch respectively state and take by hooking residence
One of the upper and lower horizontal bar of reinforcing bar is connect, the cableway is arranged along the equal spacing in length direction of the horizontal bar.
Preferably, it is further embedded in precast concrete in the beam and takes the lead anchor bar, it is described to take the lead anchor
Gu reinforcing bar includes in the straight muscle of reinforcement being transversely and horizontally set and being fixed on the anchorage head for reinforcing straight muscle side end, described to add
Tetanic muscle is placed in parallel between two horizontal bars of the overlap joint reinforcing bar, and the straight muscle of reinforcement is transverse in the tenon,
Outer end face of the anchorage head close to the tenon.
The beneficial effects of the utility model are: the wet seam connection structure of the precast concrete beam of the utility model is prefabricated mixed
Tenon is formed on the Mosaic face of solidifying Tu Liang, forms broken line interface between precast concrete beam and cast-in-place wet joint concrete.Benefit
With the vertical contraction of cast-in-place wet joint concrete and cross-direction shrinkage, cast-in-place wet joint concrete and precast concrete beam is made to have a common boundary
It being compressed at face, the contraction that both direction is collectively formed is self-locking, avoid occurring crack at interface, prevention moisture seepage flow to inside,
It can be improved the durability of precast concrete beam connection；The overlap joint reinforcing bar partially protruded into seam is embedded in precast concrete beam
And anchor bar is taken the lead in tenon, overlap joint reinforcing bar mutually overlaps, and the transverse direction for improving the wet seam connection of cast-in-place wet joint concrete connects
Intensity is connect, the anti-accident for taking the lead anchor bar raising tenon and tenon in the bonding strength of cast-in-place wet joint concrete and construction is hit
Hit ability.
Detailed description of the invention
Fig. 1 is the concrete using the wet seam connection structure of precast concrete beam of the preferred embodiment of the utility model
Schematic perspective view after native beam cross-section.
Fig. 2 is schematic cross-sectional view of the wet seam connection structure of precast concrete beam in Fig. 1 along the direction A-A.
Fig. 3 is the structural schematic diagram of the not cast-in-place wet joint concrete of the wet seam connection structure of precast concrete beam in Fig. 2.
Fig. 4 is the structural schematic diagram of the precast concrete beam of the wet seam connection structure of precast concrete beam in Fig. 2.
Fig. 5 is the enlarged structure schematic diagram of the part I in Fig. 4.
Fig. 6 is the enlarged structure schematic diagram of upper left in Fig. 2.
Each part numbers are as follows in figure: precast concrete beam 10 (wherein, precast concrete 11 in beam, overlap joint reinforcing bar 12,
Cableway 13 takes the lead anchor bar 14)；Tenon 111, outer inclined-plane 112, long bottom edge face 113, central plane 114；Horizontal bar 121, arc
Shape muscle 122；Longitudinal rib 131, crotch 132；Reinforce straight muscle 141, anchorage head 142；Cast-in-place wet joint concrete 20.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As it was noted above, being the key that wet seam connection since new-old concrete interface effectively bonds occlusion, this is practical
It is novel to be intended to by changing interface form between precast beam and the wet seam of cast-in-place concrete, to make full use of the shrinkage character of concrete
Interface is set to become pressure from pulling force, to avoid the appearance in gap.
Please refer to Fig. 1 and Fig. 2, using the wet seam connection structure of the precast concrete beam of the preferred embodiment in the utility model come
When connecting precast concrete beam, the cast-in-place wet joint concrete 20 poured between two panels precast concrete beam 10, after reaching intensity
Two panels precast concrete beam 10 can be made to connect integral.Precast concrete beam 10 is when pre-formed, concrete in beam
It is embedded with overlap joint reinforcing bar 12, cableway 13 in soil 11 and takes the lead anchor bar 14.Specifically, overlap joint reinforcing bar 12 is in length side
It is arranged at intervals in beam in precast concrete 11 upwards, each overlap joint reinforcing bar 12 is transversely arranged, and is partially embedded in prefabricated in beam
In concrete 11, partially precast concrete 11 splices side stretching from beam.When two panels precast concrete beam 10 is spliced, two panels
The laterally opposed overlap joint reinforcing bar 12 answered is overlapped (as shown in Figure 3) in seam and is bound or welded in precast concrete beam 10
It is fixed, with the relative position fixed between two panels precast concrete beam 10.Cast-in-place wet joint concrete 20 is cast in seam simultaneously
The overlap joint reinforcing bar 12 in seam is completely covered, overlap joint reinforcing bar 12 becomes the reinforced steel in cast-in-place wet joint concrete 20, increases
The transverse structure intensity of cast-in-place wet joint concrete 20 or even the wet seam connection structure of entire precast concrete beam.
It please refers to Fig. 4 and Fig. 5, in precast concrete beam 10, is adopted as vertical plane to change cast-in-place wet joint surface
Brought problem, it is tenon 111, the outer inclined-plane 112 of about 111 tenon use that the splicing side of precast concrete 11, which is middle part, in beam
It is engaged respectively with the upper and lower end face of precast concrete 11 in beam.The isosceles ladder that the transversal cross-section of tenon 111 is placed vertically in bottom edge
Shape, trapezoidal long bottom edge (long bottom edge face 113) outwardly, trapezoidal waist (central plane 114) is respectively towards upper and lower.In this way, tenon 111 is outer
Angle forms the combination of precast concrete beam 10 and cast-in-place wet joint concrete 20, is engaged angle.111 inside (trapezoidal short bottom of tenon
Side) top, lower section pass through outer inclined-plane 112 and the upper surface of precast concrete 11, lower end face bonding in beam respectively.Outer inclined-plane
112 form obtuse angle in precast concrete 11 in beam with upper surface, the lower end surface of precast concrete 11 in beam, i.e., in transversal cross-section
On, the upper corners of the splicing side of precast concrete 11, lower end angle are obtuse angle in beam.
Overlap reinforcing bar 12 include two horizontally under horizontal bar 121 disposed in parallel and one section of camber line connect two transverse directions
The arched ribs 122 of end in the seam of muscle 121, to form the U-shaped of accumbency.It is laterally opposed in two precast concrete beams 10 to answer
Overlap joint reinforcing bar 12 be overlapped in seam, part of the horizontal bar 121 in seam is locally overlapped in the horizontal direction, two correspondences
Overlap joint reinforcing bar 12 lap formed nose circle shape structure (kidney-shaped structure, the lap and two of upper and lower two horizontal bars 121
Shape composed by root arched ribs 122, as shown in Figure 3), lap is bound or is welded and fixed, prefabricated mixed to fix two panels
It coagulates the relative position between soil beam 10 and becomes the reinforced steel in cast-in-place wet joint concrete 20, increase cast-in-place wet seam coagulation
The structural strength of soil 20 or even the wet seam connection structure of entire precast concrete beam.
Before precast concrete 11 pours in beam, in order to keep the position of overlap joint reinforcing bar 12, above and below overlap joint reinforcing bar 12
Cableway 13 is provided between horizontal bar 121.Cableway 13 connects the horizontal bar up and down of overlap joint reinforcing bar 12 along the vertical direction
121, to keep overlap joint reinforcing bar 12 and take the lead the position of anchor bar 14.More specifically, cableway 13 is set including vertical direction
The longitudinal rib 131 set and the crotch 132 that 131 two ends of longitudinal rib are set, the longitudinally connected overlap joint reinforcing bar 12 of longitudinal rib 131
Upper and lower horizontal bar 121, hooking lives in lower horizontal bar 121 to the crotch 132 of two ends respectively.It can also in addition, taking the lead anchor bar 14
It is connect by binding or welding with the middle part of longitudinal rib 131, thus the fixed position for taking the lead anchor bar 14.
Anchor bar 14 is taken the lead to include the straight muscle 141 of reinforcement that is transversely and horizontally set and be fixed on and reinforce straight 141 1 side of muscle
The anchorage head 142 of head.Reinforce straight muscle 141 be placed between the horizontal bar up and down 121 of overlap joint reinforcing bar 12 in parallel and with cableway 13
Longitudinal rib 131 be connected and fixed, reinforce straight muscle 141 and be transverse in tenon 111, and anchorage head 142 is close to the outer end face of tenon 111
(face where long bottom edge).It takes the lead anchor bar 14 to reinforce precast concrete 11 in beam and its tenon 111, prevents from anticipating
Damage caused by outer collision, the integral strength and tenon of increase precast concrete beam 10 and the connection of cast-in-place wet joint concrete are strong
Degree.
After two precast concrete beams 10 are placed into scheduled position, cast-in-place wet joint concrete 20 is poured therebetween
Form wet seam.Faying face in beam between precast concrete 11 and cast-in-place wet joint concrete 20 is three outsides of tenon 111
Face (113, two, long bottom edge face central plane 114) and two outer inclined-planes 112.Cast-in-place wet joint concrete 20 formed at tenon 111 with
The tongue-and-groove (dovetail groove) of 111 phase of tenon occlusion, thus precast concrete 11 and intermediate cast-in-place wet seam coagulation in the beam of two sides
It is formed between soil 20 whole.
Please refer to Fig. 6, precast concrete beam 10 (precast concrete 11 in beam) and cast-in-place wet joint concrete 20 it
Between interface, formed by the way that when precast concrete beam 10 is prefabricated, precast concrete 11 is reserved in beam comprising tenon 111 and outer
The interface of the fold-line-shaped on inclined-plane 112.The contraction of cast-in-place wet joint concrete 20 itself is divided into vertical and lateral (such as Fig. 6
Shown in middle X axis, Y direction) both direction, using cast-in-place wet joint concrete 20 it is vertical contraction and cross-direction shrinkage, make cast-in-place
Wet joint concrete 20 compresses at interface with precast concrete beam 10, and the contraction that both direction is collectively formed is self-locking, avoids
Occur crack at interface, prevents moisture seepage flow to inside.
Self-locking effect is shunk in order to clearly embody cast-in-place wet joint concrete 20, cardinal principle is in combination with figure
6 detailed annotations are as follows:
By taking the upper left a quarter part of the wet seam connection structure of precast concrete beam in Fig. 6 as an example, in addition inclined-plane 112 with
The intersection point of central plane 113 is origin, respectively to making X-axis, Y-axis horizontally to the right, straight down, cast-in-place wet seam coagulation on the left of Y-axis
The length of soil 20 is L, more than X-axis the height of cast-in-place wet joint concrete 20 is H, the concrete pole of cast-in-place wet joint concrete 20
Accepting shrinkage strain within limits is E.
(1) contraction along outer inclined-plane 112 is self-locking
The self-locking X-direction free shrink displacement D for being to ensure that cast-in-place wet joint concrete 20 of the contraction on outer inclined-plane 112x
Less than make Y direction free shrink be displaced Dy, so that precast concrete 11 is on outer inclined-plane in cast-in-place wet joint concrete 20 and beam
112 generate pressing force.Cast-in-place wet joint concrete 20 shrinks the constraint by central plane 114, main X-axis side in X-direction
D is displaced to free shrinkxMultiply for the length L and concrete limit contraction strain E of cast-in-place on the left of Y-axis wet joint concrete 20
Product.Cast-in-place wet joint concrete 20 is displaced D in Y direction free shrinkyCast-in-place wet joint concrete 20 predominantly more than X-axis
The product that height H and the contraction strain of the concrete limit are E.To guarantee cast-in-place wet joint concrete 20 along the contraction on outer inclined-plane 112
Self-locking and reserved certain compression fraction should make its Y direction free shrink be displaced DyGreater than X-direction free shrink position
Move Dx1.5 times, and to guarantee that vertical shrink can produce pressure, outer inclined-plane 112 cannot be vertical plane, that is, length L is most short to be should be
The 1/10 of height H, that is, H × E >=1.5 × L × E, then 10 H/L >=1.5 >, therefore the slope on outer inclined-plane 112, i.e., outer inclined-plane 112
It should be selected between 5 °~30 ° with the angle (vertical angle α) of Y-axis (vertical between outer inclined-plane 112 and the vertical plane of tenon 111
Angle α is between 5 °~30 °).
(2) cast-in-place wet joint concrete 20 is self-locking along the contraction of central plane 114
The self-locking X-direction for being to ensure that cast-in-place wet joint concrete 20 of contraction along central plane 114 is shunk by central plane 114
Constraint, so that precast concrete 11 and cast-in-place wet joint concrete 20 generate pressing force at central plane 114 in beam.Due to structure
Symmetry, can guarantee the constraint shunk to the X-direction of cast-in-place wet joint concrete 20 outside central plane 114.Comprehensively consider
The convenience of construction, generally making the angle (the oblique angle β of waist) between central plane 114 and outer inclined-plane 112 is 90 ° or so, therefore outer inclined-plane
112 and cross the angle α of horizontal plane of X-axis also should be between 5 °~30 °.
Using the carry out precast concrete of the wet seam connection structure of the precast concrete beam of the preferred embodiment in the utility model
Steps are as follows for the concatenation construction of beam:
A), binding is taken the lead anchor bar 14, overlap joint reinforcing bar 12 and is erected in the moulding board of precast beam of precast concrete beam 10
Reinforcing bar 13；
B), casting concrete forms precast beam concrete 11 in beam in template, to complete precast concrete beam 10
It is prefabricated, form the fold-line-shaped on three lateral surfaces (113, two, long bottom edge face central plane 114) comprising tenon 111 and two outer inclined-planes 112
Interface；
C), after precast beam concrete 11 reaches intensity in beam, the moulding board of precast beam outside precast concrete beam 10 is removed；
D), after transport precast concrete beam 10 lifts in place, wet joint template is erected between two panels precast concrete beam 10
Cast-in-place wet joint concrete 20 is poured, the cast-in-place wet seam connection of precast concrete beam 10 is completed；
E), after the completion of cast-in-place wet joint concrete 20, cast-in-place wet joint concrete 20 is acted on due to the self-constriction of concrete
The central plane 114 and outer inclined-plane 112 for making tenon 111 compress respectively, complete the bidirectional self-locking at interface；
F), wet joint concrete template is removed after cast-in-place wet joint concrete 20 reaches intensity, connection structure is completed.
It is clearly understood that by above-mentioned record, the advantages of the precast concrete beam of the utility model wet seam connection structure
It is mainly reflected in the following aspects:
First is that forming broken line interface on the Mosaic face of precast concrete beam 10, cast-in-place wet joint concrete 20 is utilized
Vertical contraction and cross-direction shrinkage, compress cast-in-place wet joint concrete 20 at interface with precast concrete beam 10, jointly
The contraction for forming both direction is self-locking, avoids occurring crack at interface, prevents moisture seepage flow to inside.
Second is that being embedded with the overlap joint reinforcing bar 12 partially protruded into seam in precast concrete beam 10, overlap joint reinforcing bar 12 is mutual
Overlapped, and part forms nose circle shape structure, improves the lateral connection intensity of cast-in-place wet joint concrete 20 wet seam connection.
Third is that taking the lead anchor bar 14 is used to improve in the beam of precast concrete beam 10 concrete at precast concrete 11
The intensity for the tenon 111 that soil is formed, damage caused by accident collision can be prevented and integrally increase precast concrete beam 10,
The structural strength of the wet seam connection structure of precast concrete beam.
In conclusion the wet seam connection structure of the precast concrete beam of the utility model is in precast concrete beam, cast-in-place wet
The interface of joint concrete forms meander line structure that can be mutually self-locking, and the steel of mutually overlap joint and anchoring is arranged in seam
Muscle ruggedized construction makes full use of the shrinkage character of wet seam cast-in-place concrete, effectively improves wet joint surface and effectively bonds occlusion
Performance can be improved the durability of precast concrete beam connection.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of wet seam connection structure of precast concrete beam, including precast concrete beam (10) and cast-in-place it is oppositely arranged at two
The precast concrete beam (10) between cast-in-place wet joint concrete (20), it is characterised in that: the precast concrete beam
(10) include precast concrete in beam (11) and be embedded in overlap joint reinforcing bar (12) in the beam in precast concrete (11)；It is described
The middle part of the splicing side of precast concrete (11) is equipped with the tenon (111) of swallow-tail form along its length in beam；The overlap joint reinforcing bar
(12) pre-buried setting is spaced on the precast concrete beam (10) length direction in the beam in precast concrete (11), institute
Overlap joint reinforcing bar (12) is stated with the overlap joint reinforcing bar (12) corresponding in the opposite precast concrete beam (10) in the seam
Middle connection.
2. the wet seam connection structure of precast concrete beam according to claim 1, it is characterised in that: the tenon (111)
Transversal cross-section be in the isosceles trapezoid placed vertically of two bottom edges, the long bottom edge of the isosceles trapezoid is described towards in the seam
The length direction of tenon (111) is perpendicular to the plane where each overlap joint reinforcing bar (12).
3. the wet seam connection structure of precast concrete beam according to claim 2, it is characterised in that: the tenon (111)
Top, the lower section of inside pass through outer inclined-plane (112) and upper surface, the lower end surface of precast concrete (11) in the beam respectively and connect
It closes.
4. the wet seam connection structure of precast concrete beam according to claim 3, it is characterised in that: top, lower section institute
State outer inclined-plane (112) respectively with the upper surface, lower end surface of precast concrete (11) in the beam in the beam precast concrete
(11) at obtuse angle in.
5. the wet seam connection structure of precast concrete beam according to claim 4, it is characterised in that: the outer inclined-plane
(112) the vertical angle (α) between the vertical plane of the tenon (111) is between 5 °~30 °.
6. the wet seam connection structure of precast concrete beam according to claim 4, it is characterised in that: the tenon (111)
Isosceles trapezoid waist where central plane (114) and the outer inclined-plane (112) between angle (β) be 90 °.
7. the wet seam connection structure of precast concrete beam according to any one of claim 1 to 6, it is characterised in that: institute
State overlap joint reinforcing bar (12) include two horizontally under horizontal bar (121) disposed in parallel and camber line connect two horizontal bars
(121) arched ribs (122) of the end in the seam, it is laterally opposed in the opposite precast concrete beam (10) to answer
The overlap joint reinforcing bar (12) is overlapped in seam inner part, and the lap of two corresponding overlap joints reinforcing bar (12) forms nose circle
Two horizontal bars (121) up and down of shape structure, each overlap joint reinforcing bar (12) are located at the upper of the tenon (111)
Side and lower section.
8. the wet seam connection structure of precast concrete beam according to claim 7, it is characterised in that: two corresponding described
The lap of overlap joint reinforcing bar (12) is bound or is welded and fixed.
9. the wet seam connection structure of precast concrete beam according to claim 7, it is characterised in that: prefabricated mixed in the beam
It is further embedded with cableway (13) in solidifying soil (11), the cableway (13) includes the longitudinal rib of vertical direction setting
(131) and the crotch (132) in the longitudinal rib (131) two ends is set, the crotch (132) states overlap joint in hooking residence respectively
One of upper and lower described horizontal bar (121) of reinforcing bar (12), length of the cableway (13) along the horizontal bar (121)
Direction spaced set.
10. the wet seam connection structure of precast concrete beam according to claim 1, it is characterised in that: prefabricated in the beam
It is further embedded with and takes the lead anchor bar (14) in concrete (11), it is described to take the lead anchor bar (14) and be included in transversely and horizontally to set
The straight muscle of the reinforcement set (141) and the anchorage head (142) for being fixed on straight muscle (141) the side end of reinforcement, it is described to reinforce straight muscle
(141) it is placed in parallel between two horizontal bars (121) of overlap joint reinforcing bar (12), the straight muscle (141) of reinforcement is transverse to institute
It states in tenon (111), outer end face of the anchorage head (142) close to the tenon (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603163.2U CN208857985U (en) | 2018-04-20 | 2018-04-20 | Wet joint connection structure of precast concrete beams |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820603163.2U CN208857985U (en) | 2018-04-20 | 2018-04-20 | Wet joint connection structure of precast concrete beams |
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| CN201820603163.2U Expired - Fee Related CN208857985U (en) | 2018-04-20 | 2018-04-20 | Wet joint connection structure of precast concrete beams |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331181A (en) * | 2018-04-20 | 2018-07-27 | 中交第二公路勘察设计研究院有限公司 | The wet seam connection structure of precast concrete beam |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331181A (en) * | 2018-04-20 | 2018-07-27 | 中交第二公路勘察设计研究院有限公司 | The wet seam connection structure of precast concrete beam |
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