CN206428872U - A kind of close splicing seam superimposed sheet - Google Patents

A kind of close splicing seam superimposed sheet Download PDF

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Publication number
CN206428872U
CN206428872U CN201720049435.4U CN201720049435U CN206428872U CN 206428872 U CN206428872 U CN 206428872U CN 201720049435 U CN201720049435 U CN 201720049435U CN 206428872 U CN206428872 U CN 206428872U
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CN
China
Prior art keywords
plate
prefabricated
prefabricated panel
groove
seam
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CN201720049435.4U
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Chinese (zh)
Inventor
金峤
高猛
温学彬
朱春阳
王建超
齐学文
张蕾
蔡依青
Original Assignee
沈阳建筑大学
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Priority to CN201720049435.4U priority Critical patent/CN206428872U/en
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Publication of CN206428872U publication Critical patent/CN206428872U/en

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Abstract

A kind of close splicing seam superimposed sheet, belongs to building concrete member technical field.Including two prefabricated panels, cast-in-situ floor, plate top principal rod, additional elongated construction muscle, truss bars, plate bottom principal rod and seam crossing plate bottom connection lengthwise rib, the prefabricated panel section is L-type structure, i.e. one end carries open slot, two prefabricated panels are formed with reeded structure after symmetrically splicing, the seam crossing plate bottom connection lengthwise rib is arranged on the bottom portion of groove, press close to open slot bottom in prefabricated panel and preset plate bottom principal rod, casting concrete above prefabricated panel and in the groove of two prefabricated panels formation, forms superimposed sheet.The present invention is thinned the thickness of slab of overall superimposed sheet, while production cost is reduced, and alleviates floor deadweight, adds the security reliability of building.

Description

A kind of close splicing seam superimposed sheet
Technical field
The invention belongs to building concrete member technical field, more particularly to a kind of close splicing seam superimposed sheet is applicable Bidirectional laminated slab monoblock type is connected in building industrialization, prefabricated concrete component.
Background technology
The interconnection technique of two-way laminated floor slab is divided into two kinds in domestic prefabricated concrete structure at present:Post-cast strip Form seam (as shown in Figure 1, Figure 2, Figure 3, Figure 4) and close splicing seams (as shown in Figure 5).
First, post-cast strip form seam shortcoming:
(1) preform production link
1. reserved connection reinforcing bar is needed in Workshop Production, template needs reserving hole, therefore can produce one in production Serial the problem of, such as template, cause template to be easily deformed recycling rate of waterused reduction because the presence rigidity of hole diminishes;2. hole It can be changed according to the position of different floor reserved steel bars so this mould can only be used in a limited number of piece of floor, this The repeat usage of mould is caused to substantially reduce;3. easily occur spillage phenomenon during casting concrete at hole, increase the later stage Processing cost.
(2) in-site installation link
1. overlap joint needs template at the construction field (site), constructs not easy;Need to consider that precast floor slab is reserved when 2. being installed Reinforcing bar collision problem;3. need to be more than or equal to former concrete strength during the casting concrete of post-cast strip and preferably use the coagulation of microdilatancy Soil, if pouring the interface with prefabricated concrete after in creep and shrinkage of the later stage due to concrete using common concrete Place easily produces elongated crackle, influences structural safety reliability.
2nd, close splicing seams shortcoming:
This connected mode is relatively adapted to assembling relative to post-cast strip form seam, joint treatment without more tedious steps The characteristics of formula concrete structure, but traditional piece still has limitation, i.e., in floor level, the normal direction vertical with floor piece In plane, do not consider to transmit horizontal loading in piece altitude range, therefore caused consequence is exactly to need to increase floor slab back casting The thickness of concrete is to ensure the necessary floor effective depth of edge joint position, so as to cause the lifting of overall slab thickness.
In summary, the drawbacks of there is increase construction cost, waste of resource in both the above connected mode to some extent, Meanwhile, still there are a variety of unreasonable parts in terms of the PROCESS FOR TREATMENT of component production and in-site installation link.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of close splicing seam superimposed sheet, is to be based on two-way overlapping The modified floor connected mode proposed on the basis of floor sealing splicing form, is thinned the thickness of slab of overall superimposed sheet, While reducing production cost, alleviate floor deadweight, add the security reliability of building.
The purpose of the present invention is achieved through the following technical solutions:
The present invention devises three kinds of technical schemes:
Scheme one:A kind of close splicing seam superimposed sheet, including it is two prefabricated panels, cast-in-situ floor, plate top principal rod, additional logical Long construction muscle, truss bars, plate bottom principal rod and seam crossing plate bottom connection lengthwise rib, the prefabricated panel section is L-type structure, i.e., One end carries open slot, and two prefabricated panels are formed with reeded structure, the seam crossing plate bottom connection lengthwise rib after symmetrically splicing Be arranged on the bottom portion of groove, open slot bottom pressed close in prefabricated panel and presets plate bottom principal rod, above prefabricated panel and Casting concrete in the groove of two prefabricated panels formation, forms superimposed sheet.
Scheme two:A kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod, Truss Steel Muscle, plate bottom principal rod and seam crossing plate bottom connection lengthwise rib, the section are that L-type structure, i.e. one end carry open slot, two prefabricated bottoms Plate is formed with reeded structure after symmetrically splicing, and the open slot of two prefabricated panels is provided with tie hoop, institute when being in prefabricated The open slot groove bottom that prefabricated panel is exposed in tie hoop part is stated, seam crossing plate bottom connection lengthwise rib is placed in tie hoop, it is existing Field casting concrete floor, forms superimposed sheet.
Scheme three:A kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod, Truss Steel Multiple grooves are reserved in muscle, plate bottom principal rod and seam crossing plate bottom connection lengthwise rib, described prefabricated panel one end, reserve in groove and set Tie hoop, two prefabricated panels are arranged on the spiral shell with the relative splicing in tie hoop end, the seam crossing plate bottom connection lengthwise rib Revolve stirrup in be located at bottom portion of groove, groove-bottom is pressed close in prefabricated panel and presets plate bottom principal rod, above prefabricated panel and Casting concrete in the groove of two prefabricated panels, forms superimposed sheet.
Further, the reserved groove of two prefabricated panel is dovetail groove, and length is not along along tie hoop axis direction Deng, reserved groove length and spiral hoop steel length at side prefabricated panel end are adapted, opposite side prefabricated panel end it is reserved Groove length is more than the length of tie hoop in the axial direction.
Further, reserving gaps width L is less than 5mm between when the two precast concretes bottom plate splices.
Further, the concrete thickness H of the precast concrete baseplate reinforcing bar lap-joint is 30~50mm.
Further, hole is corresponding when mounted for the tie hoop of two prefabricated panel.
Further, the lap of splice l of the seam crossing plate bottom connection lengthwise ribl=la~1.6la, la are the anchoring of reinforcing bar Length.
Beneficial effects of the present invention are:
1. relative to post-cast strip form seam, the utility model touches the advantage of piece:Template is without preformed hole during production Hole, without post-cast strip during in-site installation, therefore background narration in post-cast strip form seam shortcoming in the utility model institute It can be avoided in the connected mode of use, and substantially increase labor productivity, reduce production installation cost.
2. relative to traditional close splicing seams form seam, using the close splicing seam superimposed sheet advantage of Spiral Reinforcement Binding Course:Subtract The height of small edge joint position is so as to which in the case where slab thickness is certain, this connected mode is capable of effective height of relative increase floor Degree, thus background narration in traditional close splicing seams form seam shortcoming in the connected mode that the utility model is used all It can avoid, reduce the gross thickness of floor, so as to bring a series of economic benefit with environmental protection benefit simultaneously because mixed Deadweight of the reduction of solidifying soil consumption to building has been reduced, so as to add the security reliability of building.
Brief description of the drawings
Fig. 1-Fig. 4 is form seam schematic diagram in post-cast strip of the prior art.
Fig. 5 is close splicing seams schematic diagram of the prior art.
Fig. 6 is the structural representation of the embodiment of the present invention 1.
Fig. 7 is Fig. 6 A-A sectional views.
Fig. 8 is the structural representation of the embodiment of the present invention 2.
The B-B sectional views that Fig. 9 is Fig. 8 in the embodiment of the present invention 3.
In figure:1. prefabricated panel I, 2. prefabricated panel II, 3. seam crossing plate bottom connection lengthwise ribs, 4. tie hoops, 5. plate bottoms Principal rod, 6. plate top principal rods, 7. grooves, pouring concrete after 8., 9. truss barses, 10. add elongated construction muscle.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1:As shown in Figure 6, Figure 7, a kind of close splicing seam superimposed sheet of the present invention, including it is two prefabricated panels, cast-in-place Floor, plate top principal rod 6, additional elongated construction muscle 10, truss bars 9, plate bottom principal rod 5 and seam crossing plate bottom connection lengthwise rib 3, The prefabricated panel section is that L-type structure, i.e. one end carry open slot, and two prefabricated panels are formed with fluted 7 after symmetrically splicing Structure, the seam crossing plate bottom connection lengthwise rib 3 is arranged on the bottom of groove 7, open slot bottom pressed close in prefabricated panel pre- Plate bottom principal rod 5 is equipped with, casting concrete above prefabricated panel and in the groove 7 of two prefabricated panels formation forms superimposed sheet. Two prefabricated panel is respectively prefabricated panel I 1 and prefabricated panel II2.
As shown in Figure 6, Figure 7, described seam crossing plate bottom connection lengthwise rib 3 can use welded reinforcement with elongated distributing bar 10 Installation is directly cut according to required size when mesh sheet is installed at the scene, improves and speed is installed.Between described prefabricated panel Piece can according to during actual production error range control piece distance, two precast concrete bottom plates splice when between preset slot Gap width L is less than 5mm.Optimal state is two pieces of adjacent assembly of bottom plate.The precast concrete baseplate reinforcing bar lap-joint is mixed Solidifying soil thickness H is 30~50mm.Hole is corresponding when mounted for the tie hoop 4 of two prefabricated panel.The seam crossing plate The lap of splice l of bottom connection lengthwise rib 3l=1.6la, la are the anchorage length of reinforcing bar.
Structure of the present invention is divided into two parts, prefabrication part and joint connection in site part.
Prefabrication part:First in the floor mold being completed, the colligation of plate bottom principal rod 5 is completed;Then spread If girder rib 9, then casting concrete, conserves shaping, and prefabricated panel I 1 and prefabricated panel II2 are completed.
In-site installation part:After prefabricated panel I 1 and prefabricated panel II2 parts are lifted in place, laying seam crossing plate bottom connects Vertical muscle 3 is connect with adding elongated distributing bar 10, plate top steel bar stress 5 is then laid, after reinforcing bar colligation is finished, coagulation is poured after pouring Native 8 parts, rear pouring concrete 8 just completes the connection of laminated floor slab after the completion of conserving.
Embodiment 2:As shown in figure 8, this example is as different from Example 1:The scheme that this example is used is as follows:It is prefabricated including two Bottom plate, cast-in-situ floor, plate top principal rod 6, truss bars 9, plate bottom principal rod 5 and seam crossing plate bottom connection lengthwise rib 3, the section Open slot is carried for L-type structure, i.e. one end, two prefabricated panels form the structure with fluted 7, two prefabricated panels after symmetrically splicing Open slot be provided with tie hoop 4 when being in prefabricated, the open slot bottom land of prefabricated panel is exposed in the part of tie hoop 4 Face, seam crossing plate bottom connection lengthwise rib 3 is placed in tie hoop 7, poured in place concrete floor, forms superimposed sheet.
Reserving gaps width L is less than 5mm between during the two precast concretes bottom plate splicing.The precast concrete bottom plate Concrete thickness H at bar splicing is 30~50mm.Hole is relative when mounted for the tie hoop 4 of two prefabricated panel Should.The lap of splice l of the seam crossing plate bottom connection lengthwise rib 3l=la, la are the anchorage length of reinforcing bar, traditional lap of splice ll =1.6la.
The present invention is as described below using the close splicing seam superimposed sheet specific practice of Spiral Reinforcement Binding Course:
Prefabrication part:When producing precast concrete bottom plate in workshop, it then follows following steps, assembly jig → brushing Releasing agent → assembling reinforcement mesh sheet → arrangement tie hoop → arrangement built-in fitting → casting concrete → maintenance shaping → lifting fortune It is defeated.Specially:First in the floor mold being completed, the colligation of plate bottom principal rod 5 is completed, while by the cloth of tie hoop 4 Put completion;Then girder rib 9 is laid, then casting concrete, maintenance shaping, prefabricated panel I 1 and prefabricated panel II2 are completed.
Specifically operation is arrangement tie hoop 4:The principal rod for needing to connect is stretched while principal rod 5 of colligation bottom Enter in tie hoop 4 and the position as shown in Fig. 8 with Fig. 9 carries out colligation and fixed, when pouring into a mould concrete by outside the part of tie hoop 4 Dew, leaves enough space placement member connection seam crossing plate bottom connection lengthwise ribs 3.
In-site installation part:As shown in figure 8, after prefabricated panel I 1 and prefabricated panel II2 parts are lifted in place, wherein in advance Reserving gaps width can ensure two prefabricated bottoms according to the quality of production of itself and precision between bottom plate I 1 and prefabricated panel II2 processed The assembled completion of plate, but 5mm is should be less than, prefabricated panel I 1 and prefabricated panel the II2 hole of tie hoop 4 should be aligned during installation, Seam crossing plate bottom connection lengthwise rib 3 then is placed through into prefabricated panel II2 one end to penetrate in the hole of tie hoop 4, simultaneously Penetrate in the prefabricated panel II2 hole of tie hoop 4, the seam crossing plate bottom 3 reserved length in two pieces of prefabricated panels of connection lengthwise rib Degree, should meet the requirement of the lap of splice, as a result of tie hoop 4, therefore be contemplated that according to contracting on the basis of code requirement Subtract the lap of splice of reinforcing bar, after the completion of seam crossing plate bottom connection lengthwise rib 3 is arranged, you can pouring concrete 8 after cast overlapping layers, reach Just the splicing of laminated floor slab is completed after intensity.
As shown in figure 8, described seam crossing plate bottom connection lengthwise rib 3 can shorten taking between reinforcing bar by tie hoop 4 Spreading degree, the production at convenient scene is installed, while can also increase the toughness at reserved groove 7, more preferably prevents concrete in maintenance During or hoisting transportation and production installation process in produce crack.
Embodiment 3:A kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod 6, truss Reinforcing bar 9, plate bottom principal rod 5 and seam crossing plate bottom connection lengthwise rib 3, multiple grooves 7 are reserved in described prefabricated panel one end, reserve groove Tie hoop 4 is set in 7, and two prefabricated panels are set with the relative splicing in the end of tie hoop 4, the seam crossing plate bottom connection lengthwise rib 3 Put and be located at the bottom of groove 7 in the tie hoop 4, the bottom of groove 4 is pressed close in prefabricated panel and presets plate bottom principal rod 5, After-pouring concrete eight is poured above prefabricated panel and in the groove 7 of two prefabricated panels, superimposed sheet is formed.
For increase overlapping panel stiffness, the prefabricated panel after seam and cast-in-situ floor is set closely to connect, it is not easy to crack, described two The reserved groove 7 of prefabricated panel is dovetail groove, the length along along the axis direction of tie hoop 4, at side prefabricated panel end The reserved length of groove 7 is adapted with the length of tie hoop 4, and the length of reserved groove 7 at opposite side prefabricated panel end is more than spiral hoop The length of muscle 4 in the axial direction, for convenience of placement seam crossing plate bottom connection lengthwise rib 3.
Reserving gaps width L is less than 5mm between during the two precast concretes bottom plate splicing.The precast concrete bottom plate Concrete thickness H at bar splicing is 30~50mm.Hole is relative when mounted for the tie hoop 4 of two prefabricated panel Should.The lap of splice l of the seam crossing plate bottom connection lengthwise rib 3l=la, la are the anchorage length of reinforcing bar.
Prefabrication and site operation installation method are same as Example 2.
The present invention is that the modified floor connection side proposed on the basis of splicing form is sealed based on two-way laminated floor slab Formula.Laminated floor slab thickness is that pre-erection pours lamination portion sum with after.The splicing of two blocks of precast floor slabs, due to depositing for piece Do not considering to transmit horizontal loading in piece altitude range, therefore, to ensure the bearing capacity of edge joint position floor, certainly will increase The amount of redundancy of floor other positions bearing capacity, so as to add cost.The present invention connects with accompanying drawing 1 to the tradition embodied in Fig. 5 The mode of connecing is compared, and reduces the thickness of seam crossing pre-erection, so as to reduce to ensure that edge joint position section bearing capacity is designed After pour the thickness of overlapping layers, and then be thinned the thickness of slab of overall superimposed sheet, while production cost is reduced, alleviate floor Conduct oneself with dignity, add the security reliability of building.
The present invention effectively reduces architecture production installation cost not reduce between prefabricated components premised on connection reliability, And the convenience of assembled in situ construction is taken into account, practical application well can be obtained in engineering.In particular it is traditional pre- Concrete bottom plate thickness processed is usually 60mm, when using close splicing seams because needing to increase the thickness of floor slab back casting concrete with full The effective depth of sufficient floor, and cause the concrete of pre-erection to be fully utilized to result in the waste and exacerbation of resource Building body deadweight, can by the concrete of precast concrete baseplate reinforcing bar lap-joint when the close splicing seams using Spiral Reinforcement Binding Course Thickness is prefabricated into 40mm, therefore whole floor then increases in the effective depth of edge joint position for traditional close splicing seams 20mm effective depth, thus floor overlapping in-situ layer thickness for traditional close splicing seams form, knot 20mm can be reduced on structure force design, therefore larger economic benefit can be brought while economizing on resources, simultaneously because spiral Stirrup acts on the cracking that more preferable confined concrete is capable of in seam lap-joint, obtains preferably structural behaviour.

Claims (8)

1. a kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod, additional elongated construction muscle, Truss bars, plate bottom principal rod and seam crossing plate bottom connection lengthwise rib, it is characterised in that:The prefabricated panel section is L-type structure, I.e. one end carries open slot, and two prefabricated panels are formed after symmetrically splicing with reeded structure, and the seam crossing plate bottom connection is vertical Muscle is arranged on the bottom portion of groove, and open slot bottom is pressed close in prefabricated panel and presets plate bottom principal rod, above prefabricated panel And two prefabricated panel formation groove in casting concrete, formed superimposed sheet.
2. a kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod, truss bars, plate bottom by Power muscle and seam crossing plate bottom connection lengthwise rib, it is characterised in that:The prefabricated panel section is that L-type structure, i.e. one end carry opening Groove, two prefabricated panels are formed with reeded structure after symmetrically splicing, and the open slot of two prefabricated panels is provided with when being in prefabricated The open slot groove bottom of prefabricated panel is exposed in tie hoop, the tie hoop part, and seam crossing plate bottom connection lengthwise rib is placed in spiral shell Revolve in stirrup, poured in place concrete floor, form superimposed sheet.
3. a kind of close splicing seam superimposed sheet, including two prefabricated panels, cast-in-situ floor, plate top principal rod, truss bars, plate bottom by Power muscle and seam crossing plate bottom connection lengthwise rib, it is characterised in that:Multiple grooves are reserved in described prefabricated panel one end, are set in reserved groove Tie hoop is put, two prefabricated panels are with the relative splicing in tie hoop end, and the seam crossing plate bottom connection lengthwise rib is arranged on described It is located at bottom portion of groove in tie hoop, groove-bottom is pressed close in prefabricated panel and presets plate bottom principal rod, above prefabricated panel And two prefabricated panel groove in casting concrete, formed superimposed sheet.
4. close according to claim 3 splice seam superimposed sheet, it is characterised in that:The reserved groove of two prefabricated panel is Dovetail groove, the length along along tie hoop axis direction, reserved groove length and tie hoop at side prefabricated panel end Length is adapted, and the reserved groove length at opposite side prefabricated panel end is more than the length of tie hoop in the axial direction.
5. according to any close splicing seam superimposed sheets of claim 1-3, it is characterised in that:The two precast concretes bottom plate Reserving gaps width L is less than 5mm between during splicing.
6. according to any close splicing seam superimposed sheets of claim 1-3, it is characterised in that:The precast concrete Bottom Board Steel The concrete thickness H of muscle lap-joint is 30~50mm.
7. according to any close splicing seam superimposed sheets of claim 1-3, it is characterised in that:The spiral of two prefabricated panel Hole is corresponding when mounted for stirrup.
8. according to any close splicing seam superimposed sheets of claim 1-3, it is characterised in that:The seam crossing plate bottom connection is vertical The lap of splice l of musclel=la~1.6la, la are the anchorage length of reinforcing bar.
CN201720049435.4U 2017-01-17 2017-01-17 A kind of close splicing seam superimposed sheet CN206428872U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108678254A (en) * 2018-05-10 2018-10-19 北京中清恒业科技开发有限公司 Assembled floor and construction method
CN109680852A (en) * 2019-01-17 2019-04-26 南通华荣建设集团建材科技有限公司 A kind of laminated floor slab and its construction method and joining method
CN110725455A (en) * 2019-10-25 2020-01-24 绍兴文理学院 Transverse connection method for assembled composite floor slabs
CN110847466A (en) * 2019-11-14 2020-02-28 中国建筑第二工程局有限公司 Splicing and reinforcing construction method for prefabricated laminated slab

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108678254A (en) * 2018-05-10 2018-10-19 北京中清恒业科技开发有限公司 Assembled floor and construction method
CN109680852A (en) * 2019-01-17 2019-04-26 南通华荣建设集团建材科技有限公司 A kind of laminated floor slab and its construction method and joining method
CN110725455A (en) * 2019-10-25 2020-01-24 绍兴文理学院 Transverse connection method for assembled composite floor slabs
CN110847466A (en) * 2019-11-14 2020-02-28 中国建筑第二工程局有限公司 Splicing and reinforcing construction method for prefabricated laminated slab

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