CN101775875A - Laminated prestressed reinforced concrete precast slab with rib - Google Patents
Laminated prestressed reinforced concrete precast slab with rib Download PDFInfo
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- CN101775875A CN101775875A CN201010103182A CN201010103182A CN101775875A CN 101775875 A CN101775875 A CN 101775875A CN 201010103182 A CN201010103182 A CN 201010103182A CN 201010103182 A CN201010103182 A CN 201010103182A CN 101775875 A CN101775875 A CN 101775875A
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- reinforced concrete
- precast slab
- prestressed reinforced
- ribbing
- concrete precast
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Abstract
The invention discloses a laminated prestressed reinforced concrete precast slab with ribs, comprising a precast block, cast-in-place concrete and rebar. The laminated prestressed reinforced concrete precast slab with ribs is characterized in that longitudinal grooves are arranged at the bottom of the baseboard of the precast block and on a longitudinal rib. The manufacturing method of the laminated prestressed reinforced concrete precast slab with ribs comprises the following steps: (1) precasting a precast slab with ribs; (2) upwards putting the baseboard of the precast block in order on a template, putting the rebar into the put-in-place baseboard of the precast block and the groove of the longitudinal rib, stretching the longitudinal rib of the baseboard, applying prestressing force, and pouring concrete in the groove on the bottom of the baseboard and the groove of the longitudinal rib; and (3) after pouring concrete to certain strength, forming the laminated prestressed reinforced concrete precast slab with ribs. In the manufacturing method of the laminated prestressed reinforced concrete precast slab with ribs, because the precast block is precast in advance, the precast block and the cast-in-place concrete form a whole in the laminating process, the cohesiveness between the precast block and the cast-in-place concrete is favourable, and the integrity of the precast slab is strong; the precast block can pour to manufacture or extrude for shaping in a fixed mould in batches, so that the manufacturing working procedure is simple.
Description
Technical field:
The present invention relates to the realm of building construction, specifically refer to a kind of laminated prestressed reinforced concrete precast slab with ribbing.
Background technology:
The floor spiced by steel reinforced concrete that adopts can bear bidirectional load at present, and good integrity does not need on-the-spot formwork, and cost is low, and lifting, transportation are easily.Floor spiced precast member for reinforcing bar concrete is used Ribbed Bar concrete prefabricated structural board (03227765.2) usually, both sides have hole under this Ribbed Bar concrete prefabricated element longitudinal rib, when floor spiced, reinforcing bar is passed the hole of both sides under the prefabricated units longitudinal rib, connect the polylith reinforced concrete prefabricated structural board, make the crisscross layout of reinforcing bar, in the groove that prefabricated units form, load concrete, form floor spiced, this floor have cost low, make easily, advantage such as good integrity.But the making of this precast member board with ribbing is very loaded down with trivial details, mainly be to adorn side form in the longitudinal rib both sides because both sides have building of hole longitudinal rib, the both sides hole also need be adorned mould, put base plate reinforcing bar, longitudinal rib reinforcing bar, concreting then, the module form removal difficulty in complex procedures and aperture, increased engineering time and difficulty of construction, efficiency of construction is low.
Summary of the invention:
The object of the present invention is to provide the laminated prestressed reinforced concrete precast slab with ribbing that a kind of production process is simple, reduce difficulty of construction, saving engineering time, raising efficiency of construction.
The object of the present invention is to provide a kind of laminated prestressed reinforced concrete precast slab with ribbing, comprise prefabricated section, cast-in-situ concrete, reinforcing bar.It is characterized in that: on the base plate bottom of prefabricated section and the vertical rib longitudinal fluting is arranged.When making laminated prestressed reinforced concrete precast slab with ribbing, with the base plate bottom upwards, reinforcing bar is placed in base plate bottom and the vertical costal fovea groove stretch-draw base plate reinforcing bar, concreting.Groove on the base plate can improve the rigidity of prefabricated section base plate, and at stretch-draw base plate reinforcing bar, when fluid concrete forms laminated prestressed reinforced concrete precast slab with ribbing, base plate crack or antiarch can not occur.Because concreting is in the base plate bottom, when forming laminated prestressed reinforced concrete precast slab with ribbing, the base plate bottom is smooth.Bottom groove has increased the bond area between prefabricated section base plate and the back pouring concrete simultaneously, prefabricated section, reinforcing bar, cast-in-situ concrete can be good at the build-in that bonds, solved the intensity and the collaborative work of prefabricated section and cast-in-situ concrete combination interface preferably, its stress performance, overall performance are higher.
The object of the present invention is achieved like this, a kind of laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section, cast-in-situ concrete, reinforcing bar.The preparation method of laminated prestressed reinforced concrete precast slab with ribbing comprises the steps: that (1) earlier will be prefabricated with the prefabricated section of vertical rib; (2) on template the prefabricated section base plate is upwards put neatly, reinforcing bar is placed in the base plate bottom and vertical costal fovea groove of the prefabricated section of putting, stretch-draw base plate longitudinal reinforcement applies prestressing force, concreting in base plate bottom groove and vertical costal fovea groove; (3) after the back pouring concrete reaches certain intensity, loosen prestressed reinforcement, form laminated prestressed reinforced concrete precast slab with ribbing.The preparation method of this laminated prestressed reinforced concrete precast slab with ribbing, because it is earlier that prefabricated section is prefabricated, in lamination process, form integral body by prefabricated section and cast-in-situ concrete, caking property between prefabricated section and the cast-in-situ concrete is good, the globality of precast plate is strong, prefabricated section can be built in batch in fixing mould and be made or extrusion modling, and production process is simple.
Feature of the present invention is that also the two ends of laminated prestressed reinforced concrete precast slab with ribbing are formed by the cast-in-situ concrete cast.Because the two ends of laminated prestressed reinforced concrete precast slab with ribbing are built by cast-in-situ concrete and are formed, the baseboard prestress reinforcing bar can be good at being mounted in the cast-in-situ concrete of two ends, can well bond the good integrity of precast plate between prefabricated section, cast-in-situ concrete and the reinforcing bar.
Feature of the present invention is that also the vertical rib two ends of laminated prestressed reinforced concrete precast slab with ribbing are jagged.When floor spiced, the pipeline vertical with vertical rib can be placed on vertical rib two ends indentation, there, can avoid the scene threading that burrows, and not only saved concrete material, but also saved man-hour.Because the main force part of vertical rib of precast plate is vertical rib middle part rather than vertical rib two ends, therefore do not influence the bulk strength of precast plate.
Feature of the present invention is that also the base plate bottom of prefabricated section and the longitudinal fluting form of fracture on the vertical rib are arc or rectangle.Groove shapes can be selected flexibly according to reality use and manufacture craft, is convenient to produce and actual the use.
Feature of the present invention also is on the vertical rib of prefabricated section jagged.When making laminated prestressed reinforced concrete precast slab with ribbing, the breach on the vertical rib of prefabricated section can be formed directly in hole under the vertical rib of precast plate, and the making of hole is simple, convenient.When floor spiced, now wear the hole that transverse reinforcement passes both sides under the vertical rib of precast plate, connect polylith laminated prestressed reinforced concrete precast slab with ribbing, cast-in-situ concrete becomes whole floor.
Feature of the present invention is that also vertical limit projection is arranged at the base plate bottom of prefabricated section.Because vertical limit projection is arranged at the base plate bottom, forms groove between two projections, concrete directly can be cast in the groove, need not support side form.The limit projection has increased the bond area between prefabricated section and the cast-in-situ concrete simultaneously, prefabricated section under the prestressed reinforcement effect and the bonding between the cast-in-situ concrete, build-in better, solved the bond strength and the collaborative work of the combination interface between prefabricated section and the cast-in-situ concrete preferably, stress performance, the overall performance of precast plate are higher.
Feature of the present invention is that also the vertical rib of prefabricated section is T shape or rectangle.Vertical rib can increase the intensity of precast plate, improves the overall performance of precast plate.The vertical rib of T shape has bigger rigidity, can prevent the antiarch of base plate under the prestressed reinforcement effect, has improved effective conversion height of precast plate.When being assembled into whole floor, between precast plate and the cast-in-situ concrete overlapping layers bond strength and the collaborative work of combination interface better, stress performance, the overall performance of floor are higher.
Feature of the present invention is that also the vertical rib of prefabricated section is single rib or many ribs.Many ribs can further improve the strength and stiffness of precast plate, and the making of being convenient to the large span precast plate is used.When assembly unit integral body floor, many ribs can strengthen bonding and the build-in between precast plate and the cast-in-situ concrete overlapping layers, and stress performance, the overall performance of floor are higher.
Feature of the present invention is that also the reinforcing bar of laminated prestressed reinforced concrete precast slab with ribbing has prestressed reinforcement, nonprestressed reinforcement.Reinforcing bar with longitudinal ribs is prestressed reinforcement or nonprestressed reinforcement, and the base plate longitudinal reinforcement is a prestressed reinforcement.Reinforcing bar can improve bending resistance, the shear behavior of precast plate, strengthens the bonding between prefabricated section and the cast-in-situ concrete, prevents the crack.
Description of drawings:
Fig. 1 is prefabricated section 1 structural representation, and 4 are vertical rib, and 5 is base plate, and 6 are vertical costal fovea groove, and 11 is base plate limit projection.Shown in Figure 1, vertical costal fovea groove 6 form of fractures are rectangle, and vertical limit projection 11 is arranged at the base plate bottom.
Fig. 2 is another embodiment of prefabricated section, on the vertical rib longitudinal fluting 6 is arranged, and longitudinal fluting 7 is arranged at the base plate bottom, on the vertical rib jagged 9.
Fig. 3 is another embodiment of prefabricated section, and the longitudinal fluting form of fracture on base plate bottom and the vertical rib is an arc, and vertical limit projection 11 is arranged at the base plate bottom.
Fig. 4 is a T shape rib prefabricated section structural representation, and longitudinal fluting 6 form of fractures are arc on the vertical rib, and longitudinal fluting 7 form of fractures of base plate bottom are rectangle, on the vertical rib jagged 9.
Fig. 5 is the two rib prefabricated section structural representations of rectangle, and the longitudinal fluting form of fracture on base plate bottom and the vertical rib is an arc, indulges on the rib jagged 9.
Fig. 6 is the laminated prestressed reinforced concrete precast slab structural representation, and 1 is prefabricated section, and 2 are cast-in-situ concrete, and 3 is reinforcing bar.
Fig. 7 is another embodiment of laminated prestressed reinforced concrete precast slab, and the precast plate two ends are cast-in-situ concrete 2, and the vertical rib two ends of precast plate are jagged 8, and the vertical rib of precast plate forms hole 10 down.
Fig. 8 is another embodiment of laminated prestressed reinforced concrete precast slab.
Fig. 9 is a T shape rib laminated prestressed reinforced concrete precast slab structural representation, and the vertical rib of the T shape of precast plate forms hole 10 down.
Figure 10 is the two rib laminated prestressed reinforced concrete precast slab structural representations of rectangle, and the vertical rib of precast plate forms hole 10 down.
The specific embodiment:
The present invention as shown in drawings, a kind of laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section 1, cast-in-situ concrete 2, reinforcing bar 3.It is characterized in that: on the base plate bottom of prefabricated section and the vertical rib longitudinal fluting is arranged.Fig. 1-Fig. 5 is prefabricated section 1 structural representation, and 4 are vertical rib, and 5 is base plate, and 6 are vertical costal fovea groove, and 7 is the base plate bottom groove, and 9 are vertical rib breach, and 11 is base plate limit projection.In other accompanying drawings, to number identically, its explanation is identical.
Feature of the present invention is that also the two ends of laminated prestressed reinforced concrete precast slab with ribbing are formed by the cast-in-situ concrete cast.
Feature of the present invention is that also the vertical rib two ends of laminated prestressed reinforced concrete precast slab with ribbing are jagged.
Feature of the present invention is that also the base plate bottom of prefabricated section and the longitudinal fluting form of fracture on the vertical rib are arc or rectangle.Shown in Figure 1, vertical costal fovea groove 6 form of fractures are rectangle, and vertical limit projection 11 is arranged at the base plate bottom.
Feature of the present invention also is on the vertical rib of prefabricated section jagged.Shown in Figure 2, on the vertical rib longitudinal fluting 6 is arranged, longitudinal fluting 7 is arranged at the base plate bottom, on the vertical rib jagged 9.
Feature of the present invention is that also vertical limit projection is arranged at the base plate bottom of prefabricated section.Shown in Figure 3, the longitudinal fluting form of fracture on base plate bottom and the vertical rib is an arc, and vertical limit projection 11 is arranged at the base plate bottom.
Feature of the present invention is that also the vertical rib of prefabricated section is T shape or rectangle.Shown in Figure 4, longitudinal fluting 6 form of fractures are arc on the vertical rib, and longitudinal fluting 7 form of fractures of base plate bottom are rectangle, on the vertical rib jagged 9.
Feature of the present invention is that also the vertical rib of prefabricated section is single rib or many ribs.Shown in Figure 5, the two rib prefabricated section structural representations of rectangle, the longitudinal fluting form of fracture on base plate bottom and the vertical rib is an arc, indulges on the rib jagged 9.
Feature of the present invention is that also the reinforcing bar of laminated prestressed reinforced concrete precast slab with ribbing has prestressed reinforcement, nonprestressed reinforcement.
The object of the present invention is achieved like this, a kind of laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section, cast-in-situ concrete, reinforcing bar.The preparation method of laminated prestressed reinforced concrete precast slab with ribbing comprises the steps: that (1) earlier will be prefabricated with the prefabricated section of vertical rib; (2) on template the prefabricated section base plate is upwards put neatly, reinforcing bar is placed in the base plate bottom and vertical costal fovea groove of the prefabricated section of putting, stretch-draw base plate longitudinal reinforcement applies prestressing force, concreting in base plate bottom groove and vertical costal fovea groove; (3) after the back pouring concrete reaches certain intensity, loosen prestressed reinforcement, form laminated prestressed reinforced concrete precast slab with ribbing.Fig. 6 is the laminated prestressed reinforced concrete precast slab structural representation, and 1 is prefabricated section, and 2 are cast-in-situ concrete, and 3 is reinforcing bar.
Fig. 7 is another embodiment of laminated prestressed reinforced concrete precast slab, and the precast plate two ends are cast-in-situ concrete 2, and the vertical rib two ends of precast plate are jagged 8, and the vertical rib of precast plate forms hole 10 down.
Fig. 8 is another embodiment of laminated prestressed reinforced concrete precast slab.
Fig. 9 is a T shape rib laminated prestressed reinforced concrete precast slab structural representation, and the vertical rib of the T shape of precast plate forms hole 10 down.
Figure 10 is the two rib laminated prestressed reinforced concrete precast slab structural representations of rectangle, and the vertical rib of precast plate forms hole 10 down.
Claims (10)
1. a laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section, cast-in-situ concrete, reinforcing bar.It is characterized in that: on the base plate bottom of prefabricated section and the vertical rib longitudinal fluting is arranged.
2. a laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section, cast-in-situ concrete, reinforcing bar.The preparation method of laminated prestressed reinforced concrete precast slab with ribbing comprises the steps: that (1) earlier will be prefabricated with the prefabricated section of vertical rib; (2) on template the prefabricated section base plate is upwards put neatly, reinforcing bar is placed in the base plate bottom and vertical costal fovea groove of the prefabricated section of putting, stretch-draw base plate longitudinal reinforcement applies prestressing force, concreting in base plate bottom groove and vertical costal fovea groove; (3) after the back pouring concrete reaches certain intensity, loosen prestressed reinforcement, form laminated prestressed reinforced concrete precast slab with ribbing.
3. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the two ends of laminated prestressed reinforced concrete precast slab with ribbing are built by cast-in-situ concrete and are formed.
4. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the vertical rib two ends of laminated prestressed reinforced concrete precast slab with ribbing are jagged.
5. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the base plate bottom of prefabricated section and the longitudinal fluting form of fracture on the vertical rib are arc or rectangle.
6. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: jagged on the vertical rib of prefabricated section.
7. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: vertical limit projection is arranged at the base plate bottom of prefabricated section.
8. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the vertical rib of prefabricated section is T shape or rectangle.
9. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the vertical rib of prefabricated section is single rib or many ribs.
10. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the reinforcing bar of laminated prestressed reinforced concrete precast slab with ribbing has prestressed reinforcement, nonprestressed reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103182A CN101775875A (en) | 2010-02-01 | 2010-02-01 | Laminated prestressed reinforced concrete precast slab with rib |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103182A CN101775875A (en) | 2010-02-01 | 2010-02-01 | Laminated prestressed reinforced concrete precast slab with rib |
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| Publication Number | Publication Date |
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| CN101775875A true CN101775875A (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103182A Pending CN101775875A (en) | 2010-02-01 | 2010-02-01 | Laminated prestressed reinforced concrete precast slab with rib |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926843A (en) * | 2016-06-29 | 2016-09-07 | 河北晶通建筑科技有限公司 | Ribbed prestressed thin plate as well as casting mold and casting method thereof |
| CN106639094A (en) * | 2017-02-21 | 2017-05-10 | 哈尔滨达城绿色建筑技术开发股份有限公司 | Assembling type post-tensioned pre-stressing steel reinforced concrete bidirectional laminated board for aggregate building |
| CN110778011A (en) * | 2019-11-07 | 2020-02-11 | 三一筑工科技有限公司 | Concrete precast slab, connecting structure and construction method thereof |
-
2010
- 2010-02-01 CN CN201010103182A patent/CN101775875A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926843A (en) * | 2016-06-29 | 2016-09-07 | 河北晶通建筑科技有限公司 | Ribbed prestressed thin plate as well as casting mold and casting method thereof |
| CN106639094A (en) * | 2017-02-21 | 2017-05-10 | 哈尔滨达城绿色建筑技术开发股份有限公司 | Assembling type post-tensioned pre-stressing steel reinforced concrete bidirectional laminated board for aggregate building |
| CN110778011A (en) * | 2019-11-07 | 2020-02-11 | 三一筑工科技有限公司 | Concrete precast slab, connecting structure and construction method thereof |
| CN110778011B (en) * | 2019-11-07 | 2023-12-05 | 三一筑工科技股份有限公司 | Concrete precast slab, connecting structure and construction method thereof |
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Open date: 20100714 |