CN100513721C - Hollow slab mounted permanent sectional pattern member and implement method thereof - Google Patents

Hollow slab mounted permanent sectional pattern member and implement method thereof Download PDF

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Publication number
CN100513721C
CN100513721C CNB2007101110812A CN200710111081A CN100513721C CN 100513721 C CN100513721 C CN 100513721C CN B2007101110812 A CNB2007101110812 A CN B2007101110812A CN 200710111081 A CN200710111081 A CN 200710111081A CN 100513721 C CN100513721 C CN 100513721C
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assembling die
bar
hollowcore slab
rib
pattern member
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CN101096880A (en
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徐焱
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Hebei Jing Ning Construction Technology Co., Ltd.
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徐焱
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Abstract

The invention discloses a hollow panel with permanent assembling units and method of execution, which is characterized by the following: comprising upper layer bar, lower layer bar, concrete and assembling units; arranging the assembling units between the upper layer bar and the lower layer bar; embedding in the concrete forever; compositing the assembling units with rod filler and grid; setting the orientation of the assembling units coincidence with the shearing force transmitting direction of the place plate; binding the grid and the upper bar or the lower layer bar of the plate; fixing the assembling units in the hollow panel; arranging block meta rib between adjacent assembling units; arranging prestressed reinforcement in the block meta rib with bigger hollow panel span or load. This invention can be used to one-way slab or double-way slab, which appliance thickness at 180-350mm.

Description

A kind of hollowcore slab of mounted permanent sectional pattern member and implementation method thereof
(1) technical field
The present invention relates to the floor system in a kind of reinforced concrete structure, relate in particular to permanent filler and job practices thereof in the cast-in-situ reinforced concrete hollow floor.
(2) background technology
At building field, along with the large-span concrete structure is increasing, increasing floor adopts the hollow building cover structure technology, also emerges vertical many innovative technologies in the hollow building cover field.Patented technology " thin-wall hollow roof in-situ deposited with concrete " (ZL99232922.1) discloses the technology that a kind of thin wall cylinder is used in cast-in-situ concrete; " a kind of steel bar concrete tubulose cassette ceiling " (ZL01140463.9), " a kind of steel bar concrete tubulose light floor " (ZL01140466.3) and " a kind of cast-in-place concrete cored " (application number 200510067584.5) continue to the tubulose filler application in cassette ceiling and innovate." a kind of large span prestressing without bondn cast-in-place hollow slab " (ZL00264800.8), " a kind of large span bonded prestress cast-in-place hollow slab " (ZL03236960.3), " in-situ deposited prestressed hollow reinforced concrete roof and job practices thereof " (ZL00113548.1) and " in-situ deposited prestressed hollow reinforced concrete roof and job practices thereof " (ZL00113550.3) etc. included prestressed characteristics in the patented technology, expanded the range of application of hollow building cover." a kind of grid and hollow building cover thereof of fixedly filling pipe " (ZL200520112551.3) proposes a kind of tubulose filler is combined and is applied to the hollow building cover novel structure, significantly reduced the workload of execute-in-place, made things convenient for construction.Above technology is mainly used in the one-way slabs structure, make tubulose (or bar-shaped) filler to use in two-way slab, at first to solve be along tube side to the inconsistent problem of cross tube direction mechanical property." the prestressed concrete cast-in-place hollow slab of being filled by the light material assembled unit " is (ZL03146341.X) with light material assembled unit " arranged direction is consistent with the bigger direction of moment of flexure in the plate ", overcome the bad shortcoming of cross tube direction mechanical property, reached good effect." in-situ cast hollow reinforced concrete slab pre-provided with hollow hard thin-wall members and job practices thereof " (ZL99115648.X) and other similar patent, take " have between the two ends of cavity hard thin-wall members and member between rib between the Cast-in-place concrete end that intersects of the vertical rib of Cast-in-place concrete; between the Cast-in-place concrete end rib on same straight line, constitute with the crossing elongated end of Cast-in-place concrete of the vertical rib of many Cast-in-place concretes between rib." way, the part remedied cross tube direction mechanical property defect of bad, also can be applied to two-way slab.But ZL03146341.X requires " dark beam to be set to be the needs for the arrangement prestress muscle, to can be used as the line of demarcation towards different adjacent assembled units again; It is spacing that dark beam stirrup can carry out level to assembled unit, can also improve the shearing resistance and the anti-impact of plate simultaneously and cut ability." therefore be applicable to the hollowcore slab that span surpasses 350mm greater than prestressed cored slab or the thickness of 12m.Because span is big or plate thickness when big, because the shear resistance deficiency of board concrete, considering from structure stress will the shearing resistance stirrup, can not bring too many trouble to construction so dispose dark beam steel (stirrup).When hollowcore slab thickness during, in plate, will increase a lot of unnecessary workloads to construction by the dark beam steel of colligation (stirrup) less than 350mm; When plate was two-way slab, when as if both direction dark beam steel (stirrup) being arranged all, construction is trouble especially.In ZL99115648.X, because packing material arranges towards a direction that all the technical scheme that its solution bidirectional stress is taked is that rib between end is set; From the mechanics angle, rib only reaches the problem that certain width could effectively solve cross tube direction shear resistance deficiency between end, and rib will reduce the hollow rate of plate equally between wide end.In this case, develop a kind of above deficiency of avoiding, hollow rate height and easy construction can be applied to tubulose (or bar-shaped) filler the structure technology of 180-350mm thickness hollowcore slab, have become current builing industry urgent problem.
(3) summary of the invention
According to concrete mechanics principle and experimental data as can be known: " in the hollowcore slab that tubulose (or bar-shaped) filler is filled; very nearly the same to the anti-bending strength of (referring to length direction) and cross tube direction (referring to cross-sectional direction); but shear behavior differs greatly along filler along filler along tube side, suitable tube side to shear-carrying capacity be 2 times of cross tube directions at least." purpose of the present invention is exactly in order to solve in the hollowcore slab that tubulose (or bar-shaped) filler fills; the technical problem of the shear-carrying capacity deficiency of cross tube direction hollowcore slab; for fear of shear failure occurring; give full play to hollowcore slab along tube side to the good advantage of shear behavior; tubulose (or bar-shaped) filler press as far as possible the direction of transfer layout of shearing in plate; in plate, do not need to dispose stirrup again, simplified construction technology greatly.The invention provides a kind of hollow building cover form of structure and implementation method that promptly meets mechanics principle, easy construction again.
For achieving the above object, the technical solution used in the present invention is:
Form a kind of hollowcore slab of mounted permanent sectional pattern member, comprise top reinforcement, lower floor's reinforcing bar, concrete, assembling die, assembling die between top reinforcement and lower floor's reinforcing bar, permanent being embedded in the concrete.In the assembling die arranged direction of bar-shaped filler be assembling die towards, the length direction that is oriented the bar-shaped filler in this assembling die of assembling die, assembling die towards consistent with the shearing direction of transfer in its present position plate.
This hollowcore slab both had been applicable to one-way slabs, was applicable to two-way slab again, and suitable thicknesses is 180-350mm.
Assembling die is combined by bar-shaped filler and grid, in each assembling die, is provided with internal-rib between the adjacent bar-shaped filler, and interior rib width is 40-100mm.Only need together the top reinforcement of grid and plate or lower floor's reinforcing bar binding, just can the position of fixed combination module in hollowcore slab.
Be provided with the interblock rib in the hollowcore slab between the adjacent assembling die, the interblock rib width is 50-300mm, and per pass interblock rib is connected with form of straight lines 2 limit bearings that plate is relative, and rib is parallel to each other or orthogonal between different masses.
Composite figure, circle that bar-shaped filler cross-sectional form can be broken line shape, straight line and camber line, the ratio scope of the height in bar-shaped filler cross section and width is 0.4-3.0; Bar-shaped filler can be solid, also can be hollow.
Multiple tracks interblock rib in the one-way slabs form a kind of and assembling die towards identical parallel shape structure, in the two-way slab in length and breadth the multiple tracks interblock rib of both direction form a kind of orthogonal fenestral fabric.
When big or load is big when the hollowcore slab span, can dispose presstressed reinforcing steel in the interblock rib, adopting according to the importance decision of the span of plate and structure has bonding or Non-cohesive Prestressing Force Technology.
Enforcement of the present invention is in proper order:
Judge the stressed type of plate earlier, determine that this hollowcore slab is one-way slabs or two-way slab.
According to the stressed type of plate, mark in this piece plate the load conduction pattern of bearing (being the conduction orientation of shearing in the plate) towards periphery; In the one-way slabs, load directly transmits to 2 limit bearings; In the two-way slab, load is with while and 45 crossing degree oblique lines of 2 adjacent edge bearings, and the straight lines that the oblique line intersection points are spent in connection 45 are pressed the vertical direction transmission to 4 limit bearings respectively as the line of demarcation.
Draw the arrangement diagram of assembling die in plate, by the conduction orientation of shearing determine assembling die towards.In one-way slabs, assembling die has only a direction, and this direction is consistent with the conduction orientation of shearing.In two-way slab, in the zone that is surrounded by every limit bearing and the 45 degree oblique lines connecting line of oblique line intersection point (perhaps also have), the assembling die still consistent direction of limit bearing (promptly perpendicular to) with the conduction orientation of shearing; On 45 degree oblique lines, assembling die is towards can be consistent with the shearing direction of transfer of any side in the 45 degree oblique line both sides.
During construction, lay template earlier; Subregion setting-out on template marks the plan-position of each assembling die in hollowcore slab.
Lower floor's reinforcing bar of colligation plate; In accordance with regulations position and direction are laid assembling die; The top reinforcement of colligation plate; Grid in the assembling die and reinforcing bar are on every side fixed; Carry out measure of anti float.
Concreting; Stripping.
After adopting such scheme, the present invention compared with prior art has following beneficial effect:
Workload when the present invention has significantly reduced construction has been widened the range of application of tubulose (or bar-shaped) filler in superstructure simultaneously, can be advantageously applied to single, double in plate.In superstructure, use bar-shaped filler can satisfy the technological requirement of concrete primary concreting moulding, in plate, do not need to dispose stirrup again simultaneously, simplified construction technology, accelerate the construction speed of hollow building cover greatly.The hollowcore slab and the implementation method thereof of a kind of mounted permanent sectional pattern member proposed by the invention meet mechanics principle, can give full play to the stress-bearing capability of member, reach the purpose that reduces material usage to greatest extent, thereby obtain good economic benefit.The hollowcore slab of a kind of mounted permanent sectional pattern member of the present invention is in light weight, sound insulation, good heat-insulation effect, and reliability of structure, shock resistance, crack resistance are also better.The present invention has excellent economy and applicability, and the development of Building technology is played a driving role.
(4) description of drawings
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the cross-sectional drawing of hollowcore slab of the present invention.
Fig. 2 is an assembling die floor map in the hollowcore slab of the present invention.
Fig. 3 is an assembling die schematic cross-sectional view in the hollowcore slab of the present invention.
Fig. 4 is internal-rib and an interblock rib position view in the hollowcore slab of the present invention cross section.
Fig. 5 is internal-rib and an interblock rib plan-position schematic diagram in the hollowcore slab of the present invention.
Fig. 6 is a shearing direction of transfer schematic diagram in the one-way slabs.
Fig. 7 is a shearing direction of transfer schematic diagram in the two-way slab.
Fig. 8 is assembling die drawing of site in one-way slabs.
Fig. 9 is assembling die drawing of site in two-way slab.
Figure 10 is shearing direction of transfer and assembling die position stacking chart in the one-way slabs.
Figure 11 is shearing direction of transfer and assembling die position stacking chart in the two-way slab.
Figure 12 is assembling die position and direction arrangement diagram in one-way slabs.
Figure 13 is assembling die position and direction arrangement diagram in two-way slab.
Figure 14 is the different cross-sectional forms that bar-shaped filler had among the present invention.
Among the figure: 1. top reinforcement, 2. lower floor's reinforcing bar, 3. concrete, 4. assembling die, 5. presstressed reinforcing steel, 6. bar-shaped filler, 7. grid, 8. internal-rib, 9. interblock rib, 10. limit bearing, 11.45 the degree oblique line, 12. connect the straight line of 45 degree oblique line intersection points, 13. broken line shapes, 14. the composite figure of straight line and camber line, 15. circles.
(5) specific embodiment
The present invention realizes in such a way:
In Fig. 1, hollowcore slab thickness is 180-350mm, hollowcore slab comprises top reinforcement (1), lower floor's reinforcing bar (2), concrete (3), assembling die (4), assembling die (4) is positioned between top reinforcement (1) and the lower floor's reinforcing bar (2), permanent being embedded in the concrete (3), when big or load is big when the hollowcore slab span, can in interblock rib (9), dispose presstressed reinforcing steel (5).
Fig. 2, embodiment illustrated in fig. 3 in, assembling die (4) is combined by bar-shaped filler (6) and grid (7), in each assembling die (4), be provided with internal-rib (8) between the adjacent bar-shaped filler (6), internal-rib (8) width is 40-100mm, and bar-shaped filler (6) is solid or hollow.
In the embodiment shown in fig. 4, be provided with interblock rib (9) in the hollowcore slab between the adjacent assembling die (4), interblock rib (9) width is 50-300mm.
In the embodiment shown in fig. 5, per pass interblock rib (9) is connected with form of straight lines 2 limit bearings (10) that plate is relative, and rib between different masses (9) is parallel to each other or is orthogonal.
In one-way slabs design process embodiment illustrated in fig. 6, load (shearing) directly transmits to 2 limit bearings (10).
In two-way slab design process embodiment illustrated in fig. 7, the 45 degree oblique lines (11) that load (shearing) intersects with while and 2 adjacent edge bearings (10), and the straight line (12) that connects 45 degree oblique line intersection points is pressed the vertical direction transmission to 4 limit bearings (10) respectively as the line of demarcation.
In one-way slabs embodiment illustrated in fig. 8, along transmitting parallel direction, between assembling die (4), be provided with interblock rib (9) with shearing, multiple tracks interblock rib (9) form a kind of and assembling die (4) towards identical parallel shape structure; Can there be interblock rib (9) at the two ends of bar-shaped filler (6) in assembling die, also can not establish interblock rib (9), directly layout are close at the two ends of bar-shaped filler (6) in the adjacent assembling die (4).
In two-way slab embodiment illustrated in fig. 9, all be provided with interblock rib (9) at assembling die (4) both direction on every side, the multiple tracks interblock rib (9) of both direction forms a kind of orthogonal fenestral fabric in length and breadth.
Figure 10, embodiment illustrated in fig. 11 in, respectively shearing direction of transfer and assembling die (4) position in one-way slabs and the two-way slab is superposeed, thus determine every assembling die towards (4).
Figure 12, embodiment illustrated in fig. 13 in, press assembling die (4) towards arrangement combinations module (4) in one-way slabs and two-way slab respectively.
In the embodiment shown in fig. 14, the cross-sectional form that constitutes bar-shaped filler (6) can be the composite figure (14) of broken line shape (13), straight line and camber line, circular (15), and the height in bar-shaped filler (6) cross section and the ratio scope of width are 0.4-3.0; Bar-shaped filler (6) can be solid, also can be hollow.
The implementation method of the hollowcore slab of a kind of mounted permanent sectional pattern member of the present invention:
(1) the stressed type of judgement plate determines that this hollowcore slab is one-way slabs or two-way slab.
(2), mark in this piece plate the load conduction pattern of bearing (being the conduction orientation of shearing in the plate) towards periphery according to the stressed type of plate; In the one-way slabs, load (shearing) directly transmits to 2 limit bearings (10); In the two-way slab, load (shearing) is with while and 45 crossing degree oblique lines (11) of 2 adjacent edge bearings (10), and the straight lines (12) that the oblique line intersection points are spent in connection 45 are pressed the vertical direction transmission to 4 limit bearings (10) respectively as the line of demarcation.
(3) draw the arrangement diagram of assembling die in plate, the length direction that is oriented bar-shaped filler (6) in this assembling die of assembling die (4), by the conduction orientation of shearing determine assembling die (4) towards; In one-way slabs, assembling die (4) has only a direction, and this direction is consistent with the conduction orientation of shearing; In two-way slab, by every limit bearing and 45 degree oblique lines (11) or be connected in the zone that the straight lines (12) of 45 degree oblique line intersection points are surrounded, assembling die (4) still consistent the direction of limit bearing (promptly perpendicular to) with the conduction orientation of shearing; On 45 degree oblique lines (11), assembling die (4) towards can with any side assembling die (4) in 45 degree oblique line (11) both sides towards consistent.
When (4) constructing, lay template earlier, subregion setting-out on template marks the plan-position of each assembling die (4) in hollowcore slab.
(5) lower floor's reinforcing bar (2) of colligation plate, position in accordance with regulations and direction are laid assembling die (4), the top reinforcement of colligation plate (1), grid (7) in the assembling die (4) and reinforcing bar are on every side fixed, carry out measure of anti float, concreting (3), stripping.

Claims (12)

1, a kind of hollowcore slab of mounted permanent sectional pattern member, comprise top reinforcement (1), lower floor's reinforcing bar (2), concrete (3), assembling die (4), assembling die (4) is positioned between top reinforcement (1) and the lower floor's reinforcing bar (2), permanent being embedded in the concrete (3), it is characterized in that assembling die (4) towards consistent with the shearing direction of transfer in its present position plate, the length direction that is oriented the bar-shaped filler in this assembling die of described assembling die.
2, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 1 is characterized in that hollowcore slab is one-way slabs or two-way slab, and hollowcore slab thickness is 180-300mm.
3, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 1 is characterized in that hollowcore slab thickness is 180-350mm.
4, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 1, it is characterized in that assembling die (4) is combined by bar-shaped filler (6) and grid (7), in each assembling die, be provided with internal-rib (8) between the adjacent bar-shaped filler (6), internal-rib (8) width is 40-100mm.
5, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 1, it is characterized in that being provided with between the adjacent assembling die (4) in the hollowcore slab interblock rib (9), interblock rib (9) width is 50-300mm, per pass interblock rib (9) is connected with form of straight lines 2 limit bearings (10) that plate is relative, and rib between different masses (9) is parallel to each other or is orthogonal.
6, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 4, it is characterized in that bar-shaped filler (6) cross-sectional form can be composite figure (14) or circular (15) of broken line shape (13), straight line and camber line, the height in bar-shaped filler (6) cross section and the ratio scope of width are 0.4-3.0.
7, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 4 is characterized in that bar-shaped filler (6) is hollow section or solid bar.
8, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 5, it is characterized in that multiple tracks interblock rib (9) in the one-way slabs forms a kind of and assembling die (4) towards identical parallel shape structure, a kind of orthogonal fenestral fabric of the multiple tracks interblock rib (9) of both direction formation in length and breadth in the two-way slab.
9, the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 5 is characterized in that configuration presstressed reinforcing steel (5) in the interblock rib (9).
10, the implementation method of the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 1, it is characterized in that: lower floor's reinforcing bar (2) of colligation plate, assembling die (4) is laid by the shearing direction of transfer in position in regulation, the top reinforcement of colligation plate (1), grid (7) in the assembling die (4) and reinforcing bar are on every side fixed, concreting (3), stripping, the length direction of the bar-shaped filler in the described assembling die is consistent with shearing direction of transfer in its present position plate.
11, the implementation method of the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 10, it is characterized in that: load directly transmits to 2 limit bearings (10) in the one-way slabs, the shearing direction of transfer is vertical with limit bearing (10), assembling die (4) has only one towards, the length direction that is oriented the bar-shaped filler in this assembling die of described assembling die.
12, the implementation method of the hollowcore slab of a kind of mounted permanent sectional pattern member according to claim 10, it is characterized in that: the 45 degree oblique lines (11) that load intersects with while and 2 adjacent edge bearings (10) in the two-way slab, and the straight line (12) of connection 45 degree oblique line intersection points is as the line of demarcation, press the vertical direction transmission to 4 limit bearings (10) respectively, by limit bearing (10) and 45 degree oblique lines (11) or be connected in the zone that the straight lines (12) of 45 degree oblique line intersection points are surrounded, assembling die (4) is consistent with the shearing direction of transfer, on 45 degree oblique lines (11), assembling die (4) towards can be consistent with the shearing direction of transfer of any side in 45 degree oblique line (11) both sides, the length direction that is oriented the bar-shaped filler in this assembling die of described assembling die.
CNB2007101110812A 2007-06-15 2007-06-15 Hollow slab mounted permanent sectional pattern member and implement method thereof Ceased CN100513721C (en)

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CNB2007101110812A CN100513721C (en) 2007-06-15 2007-06-15 Hollow slab mounted permanent sectional pattern member and implement method thereof

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Application Number Priority Date Filing Date Title
CNB2007101110812A CN100513721C (en) 2007-06-15 2007-06-15 Hollow slab mounted permanent sectional pattern member and implement method thereof

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CN100513721C true CN100513721C (en) 2009-07-15

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121290B (en) * 2011-01-25 2012-09-05 徐焱 Hollow core slab mixed with filling rods and exposed filling boxes
CN102155063B (en) * 2011-01-25 2013-04-24 徐焱 Plate-column structure hollow core slab mixedly using filling rod and exposed filling box
CN104453049B (en) * 2014-11-26 2017-05-17 徐焱 Hollow one-way plate with filling rods and filling boxes mixed for use

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Application publication date: 20080102

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Denomination of invention: Hollow slab mounted permanent sectional pattern member and implement method thereof

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