CN101845863A - Ribbed superimposition prestress reinforced concrete precast slab - Google Patents
Ribbed superimposition prestress reinforced concrete precast slab Download PDFInfo
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- CN101845863A CN101845863A CN200910227167A CN200910227167A CN101845863A CN 101845863 A CN101845863 A CN 101845863A CN 200910227167 A CN200910227167 A CN 200910227167A CN 200910227167 A CN200910227167 A CN 200910227167A CN 101845863 A CN101845863 A CN 101845863A
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- reinforced concrete
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- precast slab
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Abstract
The invention discloses a ribbed superimposition prestress reinforced concrete precast slab, which comprises a precast block (1), a hole (2), a post-cast concrete superimposition layer (3) and reinforcing steel bars (4). A production method of the precast slab comprises the following steps that: the precast block (1) with longitudinal ribs is well pre-cast; soleplates of the precast blocks (1) are orderly arranged upwards, the reinforcing steel bars (4) are arranged inside a longitudinal groove (10) and a longitudinal ribbed groove (8) or a longitudinal rib hole (9) of the precast block, prestress is applied onto the longitudinal reinforcing steel bars of the soleplate, and concrete is poured inside the longitudinal groove (10) and the longitudinal ribbed groove (8) or the longitudinal ribbed hole (9) of the soleplate; and after the post-cast concrete reaches a given strength, the prestrained reinforcing steel bars are released, so the ribbed superimposition prestress reinforced concrete precast slab is formed. Since the precast block (1) with the longitudinal groove (10) is well precast, and the precast block (1) can be cast or squeezed inside a fixed mould, the production procedure is simple, the construction difficulty is reduced, and the construction efficiency is improved.
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 present floor spiced by steel reinforced concrete that adopts, 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, hole, back pouring concrete overlapping layers, reinforcing bar.It is characterized in that: longitudinal fluting is arranged at the base plate bottom of prefabricated section.When making laminated prestressed reinforced concrete precast slab with ribbing, with the base plate bottom upwards, reinforcing bar is placed in base plate bottom longitudinal fluting and vertical costal fovea groove or the vertical rib hole 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, back pouring concrete can be good at the build-in that bonds, solved the intensity and the collaborative work of prefabricated section and back pouring 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, hole, back pouring concrete overlapping layers, 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 the precasting yard template, the prefabricated section base plate is upwards put neatly, reinforcing bar is placed in the base plate bottom longitudinal fluting and vertical costal fovea groove or vertical rib hole of the prefabricated section of putting, stretch-draw base plate longitudinal reinforcement, apply prestressing force, concreting in base plate longitudinal fluting and vertical costal fovea groove or vertical rib hole; (3) after the back pouring concrete reaches certain intensity, loosen prestressed reinforcement, form laminated prestressed reinforced concrete precast slab with ribbing.Because it is earlier that prefabricated section is prefabricated, be made into laminated prestressed reinforced concrete precast slab with ribbing by prefabricated section again, prefabricated section can be built in batch in fixing mould and be made or extrusion modling, production process is simple, be convenient to mechanization production, reduced difficulty of construction, saved the engineering time, improved efficiency of construction.
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 links to each other with the vertical rib of another prefabricated section, can be formed directly in both sides 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 also is to have on the vertical rib of prefabricated section longitudinal fluting or vertical hole.Because longitudinal fluting or vertical hole are arranged on the rib, can be used for placing reinforcing bar with longitudinal ribs, concreting.Prefabricated section, reinforcing bar with longitudinal ribs, back pouring concrete can be good at the build-in that bonds, and have solved intensity and the collaborative work of prefabricated section with back pouring concrete combination interface preferably, and its stress performance, overall performance are higher.
Feature of the present invention is that also vertical costal fovea groove of prefabricated section and base plate longitudinal fluting form of fracture 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 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 breach on the vertical rib of prefabricated section is arc or rectangle.Notch geometry on the vertical rib 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 base plate bottom of prefabricated section vertical limit projection is arranged.Because base plate is provided with projection, forms groove between two projections, concrete directly can be cast in the groove, need not support side form.Projection has increased the bond area between prefabricated section and the back pouring concrete simultaneously, bonding, the build-in of prefabricated section between the pouring concrete of under the prestressed reinforcement effect and back is better, solved the bond strength and the collaborative work of prefabricated section and the back combination interface between the pouring concrete preferably, its stress performance, overall performance are higher.
Feature of the present invention is that also vertical rib of prefabricated section T shape and top board or base plate intersection are provided with haunch.The vertical rib haunch of T shape has improved the bending resistance of top board, has improved the shear-carrying capacity of precast plate simultaneously, can prevent effectively that vertical rib and top board, back plate connections stress from concentrating the intensity of enhancing precast plate.
Feature of the present invention is that also the longitudinal 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, two 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 the prefabricated section, prevents the crack.
Description of drawings:
Fig. 1 is prefabricated section 1 structural representation, and 5 are vertical rib, and 6 are vertical rib breach, and 7 is base plate, and 8 are vertical costal fovea groove, and 9 are vertical rib hole, and 10 is the base plate longitudinal fluting, and 11 is base plate limit projection.Shown in Figure 1, vertical rib breach 6 is an arc, and vertical costal fovea groove 8 form of fractures are arc.
Fig. 2 is another embodiment of prefabricated section, and vertical rib breach 6 is a rectangle, and vertical costal fovea groove 8 form of fractures are arc, and base plate bottom longitudinal fluting 10 form of fractures are rectangle.
Fig. 3 is another embodiment of prefabricated section, on the vertical rib vertical hole 9 is arranged, and base plate longitudinal fluting 10 form of fractures are rectangle, and limit projection 11 is arranged on the base plate.
Fig. 4 is a T shape rib prefabricated section structural representation, and vertical costal fovea groove 8 form of fractures are arc, and base plate longitudinal fluting 10 form of fractures are rectangle, and base plate has limit projection 11.
Fig. 5 is another embodiment of T shape rib prefabricated section, and vertical rib of T shape and top board and base plate intersection are provided with haunch 12, on the vertical rib vertical hole 9 are arranged.
Fig. 6 is the two rib prefabricated section structural representations of rectangle.On the vertical rib vertical hole 9 is arranged.
Fig. 7 is the laminated prestressed reinforced concrete precast slab structural representation, and hole 2 is an arc.
Fig. 8 is another embodiment of laminated prestressed reinforced concrete precast slab, and hole 2 is a rectangle.
Fig. 9 is another embodiment of laminated prestressed reinforced concrete precast slab.
Figure 10 is a T shape rib laminated prestressed reinforced concrete precast slab structural representation.
Figure 11 is another embodiment of T shape rib laminated prestressed reinforced concrete precast slab.Vertical rib of T shape and top board and base plate intersection are provided with haunch 12.
Figure 12 is the two rib laminated prestressed reinforced concrete precast slab embodiment of rectangle.
The specific embodiment:
The invention will be further described below in conjunction with drawings and Examples.
The present invention as shown in drawings, a kind of laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section 1, hole 2, back pouring concrete overlapping layers 3, reinforcing bar 4.It is characterized in that: longitudinal fluting 10 is arranged at base plate 7 bottoms of prefabricated section 1.Fig. 1 is prefabricated section 1 structural representation, and 5 are vertical rib, and 6 are vertical rib breach, and 7 is base plate, and 8 are vertical costal fovea groove, and 9 are vertical rib hole, and 10 is the base plate longitudinal fluting, and 11 is base plate limit projection.In other accompanying drawings, to number identically, its explanation is identical.Shown in Figure 1, vertical rib breach 6 is an arc, and vertical costal fovea groove 8 form of fractures are arc.
Feature of the present invention also is on the vertical rib 5 of prefabricated section 1 jagged 6.Fig. 2 is the structural representation of embodiments of the invention 2, and vertical rib breach 6 is a rectangle, and longitudinal fluting 8 form of fractures are arc on the vertical rib, and base plate longitudinal fluting 10 form of fractures are rectangle.
Feature of the present invention also is to have on the vertical rib 5 of prefabricated section 1 longitudinal fluting 8 or vertical hole 9.Fig. 3 is the structural representation of embodiments of the invention 3, on the vertical rib vertical hole 9 is arranged, and base plate longitudinal fluting 10 form of fractures are rectangle, and limit projection 11 is arranged on the base plate.
Feature of the present invention is that also the vertical costal fovea groove 8 of prefabricated section 1 and base plate longitudinal fluting 10 form of fractures are arc or rectangle.
Feature of the present invention is that also the vertical rib of prefabricated section is T shape or rectangle.Fig. 4 is the structural representation of embodiments of the invention 4, and vertical rib is a T shape.
Feature of the present invention is that also the breach 6 on the prefabricated section 1 vertical rib 5 is arc or rectangle.
Feature of the present invention is that also limit projection 11 is arranged at the base plate bottom of prefabricated section 1.
Feature of the present invention is that also vertical rib of prefabricated section T shape and top board or base plate intersection are provided with haunch 12, and Fig. 5 is the structural representation of embodiments of the invention 5, and vertical rib of T shape and top board and base plate intersection are provided with haunch 12, on the vertical rib 5 vertical hole 9 are arranged.
Feature of the present invention is that also the vertical rib of prefabricated section 1 is single rib or many ribs.Fig. 6 is the structural representation of embodiments of the invention 6, and the vertical rib of prefabricated section 1 is the two ribs of rectangle, on the vertical rib vertical hole 9 is arranged.
The object of the present invention is achieved like this, a kind of laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section 1, hole 2, back pouring concrete overlapping layers 3, reinforcing bar 4.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 1 of vertical rib; (2) on the precasting yard template, prefabricated section 1 base plate is upwards put neatly, reinforcing bar 3 is placed in the bottom plate groove 10 and vertical costal fovea groove 8 or vertical rib hole 9 of prefabricated section, stretch-draw base plate longitudinal reinforcement applies prestressing force, concreting in bottom plate groove 10 and vertical costal fovea groove 8 or vertical rib hole 9; (3) after the back pouring concrete reaches certain intensity, loosen prestressed reinforcement, form laminated prestressed reinforced concrete precast slab with ribbing.Fig. 7 is a rectangular fin laminated prestressed reinforced concrete precast slab structural representation.Fig. 7 is the structural representation of embodiments of the invention 7, rectangular fin laminated prestressed reinforced concrete precast slab structural representation, and wherein reinforcing bar with longitudinal ribs is prestressed reinforcement or nonprestressed reinforcement, the base plate longitudinal reinforcement is a prestressed reinforcement.
Fig. 8 is the structural representation of embodiments of the invention 8, rectangular fin laminated prestressed reinforced concrete precast slab structural representation.
Fig. 9 is the structural representation of embodiments of the invention 9, rectangular fin laminated prestressed reinforced concrete precast slab structural representation.
Figure 10 is the structural representation of embodiments of the invention 10, T shape rib laminated prestressed reinforced concrete precast slab.
Figure 11 is the structural representation of embodiments of the invention 11, T shape rib laminated prestressed reinforced concrete precast slab, and vertical rib of T shape and top board and base plate intersection are provided with haunch 12.
Figure 12 is the structural representation of embodiments of the invention 12, the two rib laminated prestressed reinforced concrete precast slabs of rectangle.
Claims (11)
1. a laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section (1), hole (2), back pouring concrete overlapping layers (3), reinforcing bar (4).It is characterized in that: longitudinal fluting (10) is arranged at base plate (7) bottom of prefabricated section (1).
2. a laminated prestressed reinforced concrete precast slab with ribbing comprises prefabricated section (1), hole (2), back pouring concrete overlapping layers (3), reinforcing bar (4).Its preparation method comprises the steps: that (1) earlier will be prefabricated with the prefabricated section (1) of vertical rib; (2) on template, prefabricated section (1) base plate is upwards put neatly, reinforcing bar (3) is placed in the base plate longitudinal fluting (10) and vertical costal fovea groove (8) or vertical rib hole (9) of prefabricated section, stretch-draw base plate longitudinal reinforcement, apply prestressing force, concreting in base plate longitudinal fluting (10) and vertical costal fovea groove (8) or vertical rib hole (9); (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 vertical rib (5) of prefabricated section (1) is gone up jagged (6).
4. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: longitudinal fluting (8) or vertical hole (9) are arranged on the vertical rib (5) of prefabricated section (1).
5. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the vertical costal fovea groove (8) of prefabricated section (1) and base plate longitudinal fluting (10) form of fracture are arc or rectangle.
6. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the longitudinal rib of prefabricated section (1) is T shape or rectangle.
7. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the breach (6) on the vertical rib (5) of prefabricated section (1) is arc or rectangle.
8. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: limit projection (11) is arranged at the base plate bottom of prefabricated section (1).
9. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: vertical rib of prefabricated section T shape and top board or base plate intersection are provided with haunch (12).
10. laminated prestressed reinforced concrete precast slab with ribbing according to claim 1 is characterized in that: the vertical rib of prefabricated section (1) is single rib or many ribs.
11. 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 |
|---|---|---|---|
| CN200910227167A CN101845863A (en) | 2009-12-10 | 2009-12-10 | Ribbed superimposition prestress reinforced concrete precast slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910227167A CN101845863A (en) | 2009-12-10 | 2009-12-10 | Ribbed superimposition prestress reinforced concrete precast slab |
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| Publication Number | Publication Date |
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| CN101845863A true CN101845863A (en) | 2010-09-29 |
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| CN200910227167A Pending CN101845863A (en) | 2009-12-10 | 2009-12-10 | Ribbed superimposition prestress reinforced concrete precast slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272555A (en) * | 2018-01-19 | 2018-07-13 | 全椒光太胶粘制品有限公司 | A kind of high hermetic type Medical isolating film |
-
2009
- 2009-12-10 CN CN200910227167A patent/CN101845863A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272555A (en) * | 2018-01-19 | 2018-07-13 | 全椒光太胶粘制品有限公司 | A kind of high hermetic type Medical isolating film |
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Open date: 20100929 |