CN1566563A - Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab - Google Patents
Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab Download PDFInfo
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- CN1566563A CN1566563A CN 03146341 CN03146341A CN1566563A CN 1566563 A CN1566563 A CN 1566563A CN 03146341 CN03146341 CN 03146341 CN 03146341 A CN03146341 A CN 03146341A CN 1566563 A CN1566563 A CN 1566563A
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- Prior art keywords
- light material
- slab
- assembled unit
- reinforcing steel
- concrete cast
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- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 13
- 238000011065 in-situ storage Methods 0.000 title description 3
- 239000003562 lightweight material Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 14
- 210000002435 tendon Anatomy 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
Disclosed is a prestressed concrete on-site pouring hollow slab filled with light material combined unit, which comprises light material combined unit, upper layer reinforcing steel bar, lower layer reinforcing steel bar, tendon, blind beam reinforcing steel bar and concrete. The light material combined unit consists of light tubes and connection bar, which is arranged between the upper layer reinforcing steel bar and the lower layer reinforcing steel bar, the combined unit tubes is in the same direction with the bigger bending moment within the slab, The blind beam is arranged at intervals of a certain distances, in which the tendon is centralized laid. Said on-site pouring slab has the advantages of both the prestressed structure and the hollow slab structure, has high hollow percentage, implements one time concrete pouring moulding, is suitable not only for one-way slab, but also for two-way slab. The slab has big span, light weight, good heat and sound insulation effects, good reliability, shock resistance and crack resistance.
Description
Affiliated technical field
The present invention relates to a kind of prestressed concrete cast-in-place hollow slab, belong to buildings in general structure field.
Background technology
At building field, along with the large-span concrete structure is increasing, increasing floor adopts prestressing force to fill the technology that combines with light material.Prestressed reinforced concrete construction can increase the span-depth radio of horizontal member, can improve deformation of members and cracking resistance and non-deformability simultaneously.Light material infill panel and solid slab structure specific energy mutually alleviate dead load.Present existing prestressed concrete cast-in-place hollow slab form has: " a kind of large span prestressing without bondn cast-in-place hollow slab " and " in-situ deposited prestressed hollow reinforced concrete roof and job practices thereof " that (1) is filled by circular hollow tube; (2) " the composite prestressed concrete frame invert-Chen-Shuibian beam floor " and " the whole compound slab of cast-in-situ prestressed concrete " of filling by flake light material or flat block.More than 2 kinds of form of structure certain limitation is all arranged when using.Though easy construction during the circular hollow tube concreting, for the bad processing of the hollowcore slab of bidirectional stress, even if during as one-way slabs because presstressed reinforcing steel will be arranged in the flank between the hollow section, to spacing between the hollow section have certain requirement (〉=8mm); So hollow rate lower (being generally less than 50%); And lay tubing during site operation and location institute is time-consuming more.Though the hollow rate of the hollowcore slab floor of being filled by flake light material or flat block is higher, also solve the problem of bidirectional stress simultaneously, it is also not too convenient to construct, concrete closely knit in order to guarantee, usually concreting at twice; Not only construction trouble influences concrete pouring quality toward contact.
Summary of the invention
For solve hollowcore slab hollow rate that round tube fills lower, on-the-spot lay tubing the difficult problem of bad processing during time-consuming more and bidirectional stress, overcome the defective that the hollowcore slab concrete of sheet or flat filling will be built at twice simultaneously; A kind of prestressed cored slab provided by the present invention has higher hollow rate, can satisfy the requirement of bidirectional stress, and simultaneously concrete can the one-time-concreting moulding, and efficiency of construction is very high.
The technical solution adopted for the present invention to solve the technical problems is: form a kind of prestressed concrete cast-in-place hollow slab of being filled by the light material assembled unit, it is made of light material assembled unit, top reinforcement, lower floor's reinforcing bar, presstressed reinforcing steel, dark beam steel and concrete, and wherein the light material assembled unit is made of lightweight tubing and connecting reinforcement.The cross-sectional form of each unit can be the composite figure of circle, broken line shape or rectangle and circular arc in the light material assembled unit that the present invention adopts, the height and the width dimensions in cross section are approaching, the depth-width ratio scope is 0.6-2.0, the soffit of tubing is designed to circular arc or broken line shape is for convenience concrete flowing, guarantees the one-time-concreting moulding.Adopt light material to fill and solve the problem that alleviates member dead weight, the necessary bulk density of light material is little, pollution-free, can be solid or hollow tubing.In the light material assembled unit, in order to improve hollow rate, spacing is got the minimum range that can guarantee concrete pouring quality between the tubing.By connecting reinforcement several lightweight tubing being combined in advance becomes a unit, is for convenience of site operation, prevents the tubing positioning.Dark beam is set is needs, can be used as line of demarcation again towards different adjacent assembled units for the arrangement prestress muscle; 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.The light material assembled unit can laterally or vertically be placed; At the different loading characteristics of one-way slabs, and the force difference of two-way slab different directions with two-way slab, in the plate each assembled unit of different parts towards by plate stressed decision herein, the direction that the arranged direction of tubing and moment of flexure are bigger is consistent.Adopt prestressing technique to solve the large span problem, the presstressed reinforcing steel centralized arrangement has bonding or Non-cohesive Prestressing Force Technology according to the span of plate and the importance decision employing of structure in dark beam.
The cast-in-place plate of this kind is taken into account the advantage of prestressed structure and hollowcore slab structure, and hollow rate higher (maximum can reach 70%) both had been suitable for one-way slabs, was suitable for two-way slab again, stringing, the shop muscle very convenient, also realize the moulding of concrete primary concreting.The cast-in-place span of slab of this kind big (maximum can reach 30 meters), in light weight, sound insulation, good heat-insulation effect, 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.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a transverse cross-sectional view of the present invention.
Fig. 2 is the pie graph of light material assembled unit.
Fig. 3 is an individual unit cross-sectional configuration schematic diagram in the light material assembled unit.
Fig. 4 is the layout plan of the present invention in one-way slabs.
Fig. 5 is the layout plan of the present invention in two-way slab.
Among the figure: 1. light material assembled unit, 2. top reinforcement, 3. lower floor's reinforcing bar, 4. presstressed reinforcing steel, 5. dark beam steel, 6. concrete, 7. light material tubing, 8. connecting reinforcement, 9. circle, the 10. composite figure of broken line shape, 11. rectangles and circular arc.
The specific embodiment
The present invention realizes in such a way:
1, produce light material tubing (7), the necessary bulk density of light material is little, pollution-free, can be solid or hollow.Light material tubing (7) cross-sectional form can be the composite figure (11) of circular (9), broken line shape (10) or rectangle and circular arc, and the height and the width dimensions in cross section are approaching, and the depth-width ratio scope is 0.6-2.0.By connecting reinforcement (8) several tubing are coupled together around light material tubing (7) border, form a light material assembled unit (1), connecting reinforcement (8) is the position of light material tubing (7) fixedly, and adjacent tubing spacing should meet the requirement that can guarantee concrete pouring quality in the same assembled unit simultaneously.
2, lower floor's reinforcing bar (3) of colligation hollowcore slab; Dark beam is set, the dark beam steel of colligation (5) in the plate.
3, filling with light material assembled unit (1) in each sub-district lattice that in plate, are separated by dark beam steel (5).Assembled unit can laterally or vertically be placed; Each assembled unit towards stressed decision by district's lattice inner panel, the arranged direction of tubing is consistent with the bigger direction of moment of flexure in the plate.
4, centralized arrangement presstressed reinforcing steel (4) in dark beam, decision is adopted as required bonding or unbonded prestressing tendon.
5, the top reinforcement of colligation hollowcore slab (2).
6, concreting (6).
Claims (5)
1, a kind of prestressed concrete cast-in-place hollow slab of filling by the light material assembled unit, it is made of light material assembled unit (1), top reinforcement (2), lower floor's reinforcing bar (3), presstressed reinforcing steel (4), dark beam steel (5) and concrete (6), and wherein light material assembled unit (1) is made up of light material tubing (7) and connecting reinforcement (8).It is characterized in that using in the concrete cast-in-place slab light material assembled unit (1) and presstressed reinforcing steel (4).
2, according to the described prestressed concrete cast-in-place hollow slab of filling of claim 1, it is characterized in that it both had been applicable to one-way slabs, was applicable to two-way slab by the light material assembled unit.
3,, it is characterized in that light material assembled unit (1) can be laterally or vertical placement according to the described prestressed concrete cast-in-place hollow slab of filling of claim 1 by the light material assembled unit; Each assembled unit towards stressed decision by district's lattice inner panel, the arranged direction of tubing is consistent with the bigger direction of moment of flexure in the plate.
4, according to the described prestressed concrete cast-in-place hollow slab of filling of claim 1 by the light material assembled unit, it is characterized in that light material tubing (7) cross-sectional form can be the composite figure (11) of circular (9), broken line shape (10) or rectangle and circular arc, the ratio scope of the height in cross section and width is 0.6-2.0.
5, according to the described prestressed concrete cast-in-place hollow slab of being filled by the light material assembled unit of claim 1, it is characterized in that being provided with in the plate dark beam, presstressed reinforcing steel (4) centralized arrangement is in dark beam; Used presstressed reinforcing steel (4) both can be a unbonded prestressing tendon, also can be bonded prestressed tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146341 CN1265067C (en) | 2003-07-09 | 2003-07-09 | Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146341 CN1265067C (en) | 2003-07-09 | 2003-07-09 | Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566563A true CN1566563A (en) | 2005-01-19 |
| CN1265067C CN1265067C (en) | 2006-07-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03146341 Ceased CN1265067C (en) | 2003-07-09 | 2003-07-09 | Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265067C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351474C (en) * | 2005-11-24 | 2007-11-28 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| CN101793070A (en) * | 2010-03-22 | 2010-08-04 | 徐焱 | Hollow floor system filled with an air-filling bag and construction method thereof |
| CN101063358B (en) * | 2007-06-18 | 2011-01-19 | 徐焱 | Cast-in-place concrete hollow slab with ribbed and construction method thereof |
| CN102061769A (en) * | 2010-11-26 | 2011-05-18 | 徐焱 | Slab-column structure hollow slap with mixed use of filling rod and filling box |
| CN102953488A (en) * | 2012-11-06 | 2013-03-06 | 华南理工大学 | High-intensity inflating hollow module for landfill |
| CN103469951A (en) * | 2012-06-07 | 2013-12-25 | 甘顺明 | Floor slab with cast-in-place concrete filling permanent core modules and construction method thereof |
| CN105569243A (en) * | 2014-11-06 | 2016-05-11 | 齐齐哈尔大学 | Self-supporting pre-stress combination beam lightweight aggregate concrete composite slab |
-
2003
- 2003-07-09 CN CN 03146341 patent/CN1265067C/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351474C (en) * | 2005-11-24 | 2007-11-28 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| CN101063358B (en) * | 2007-06-18 | 2011-01-19 | 徐焱 | Cast-in-place concrete hollow slab with ribbed and construction method thereof |
| CN101793070A (en) * | 2010-03-22 | 2010-08-04 | 徐焱 | Hollow floor system filled with an air-filling bag and construction method thereof |
| CN102061769A (en) * | 2010-11-26 | 2011-05-18 | 徐焱 | Slab-column structure hollow slap with mixed use of filling rod and filling box |
| CN103469951A (en) * | 2012-06-07 | 2013-12-25 | 甘顺明 | Floor slab with cast-in-place concrete filling permanent core modules and construction method thereof |
| CN102953488A (en) * | 2012-11-06 | 2013-03-06 | 华南理工大学 | High-intensity inflating hollow module for landfill |
| CN102953488B (en) * | 2012-11-06 | 2015-03-11 | 华南理工大学 | High-intensity inflating hollow module for landfill |
| CN105569243A (en) * | 2014-11-06 | 2016-05-11 | 齐齐哈尔大学 | Self-supporting pre-stress combination beam lightweight aggregate concrete composite slab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265067C (en) | 2006-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: XU YAN Free format text: FORMER OWNER: XU RENCHENG Effective date: 20060224 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20060224 Address after: 100084 Beijing Tsinghua University civil engineering contracting Corporation Applicant after: Xu Yan Address before: 2, unit 1, building 5, No. 344000, Fu Qing lane, Jiangxi, Linchuan, 203 Applicant before: Xu Rencheng |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou superstar light building materials Co., Ltd. Assignor: Xu Yan Contract fulfillment period: 2009.3.10 to 2014.3.10 contract change Contract record no.: 2010320000011 Denomination of invention: Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab Granted publication date: 20060719 License type: General permission Record date: 2010.1.13 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.10 TO 2014.3.10; CHANGE OF CONTRACT Name of requester: SUZHOU JUXING LIGHT BUILDING MATERIALS CO., LTD. Effective date: 20100113 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20050119 Assignee: Xi'an Jing Ning Building Materials Technology Co., Ltd. Assignor: Xu Yan Contract record no.: 2012610000156 Denomination of invention: Lightweight material combination unit filled prestressed concrete cast-in-situ hollow slab Granted publication date: 20060719 License type: Common License Record date: 20121023 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20131023 Decision number of declaring invalidation: 21452 Granted publication date: 20060719 |