CN103334526A - Steel web prestress concrete superimposed sheet - Google Patents
Steel web prestress concrete superimposed sheet Download PDFInfo
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- CN103334526A CN103334526A CN2013102977261A CN201310297726A CN103334526A CN 103334526 A CN103334526 A CN 103334526A CN 2013102977261 A CN2013102977261 A CN 2013102977261A CN 201310297726 A CN201310297726 A CN 201310297726A CN 103334526 A CN103334526 A CN 103334526A
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Abstract
The invention relates to a steel web prestress concrete superimposed sheet which comprises a base plate, at least one steel web and at least one flange. The number of the steel web is the same as the number of the flange, and the steel web is vertically and fixedly arranged between the flange and the base plate. The steel web is used in the steel web prestress concrete superimposed sheet, and the advantages of being excellent in stiffness out of plane, deflection resistance bearing capacity and shear-bearing capacity and low in weight of the steel structure web are effectively used. When the superimposed sheet is manufactured, used molds are simple and few, and manufacturing is convenient. Holes can be formed in the steel web in the field or formed in a prefabricating mode in factories according to the condition of cable arrangement. The base plate and the steel web are molded by casting one time and free of construction joints. The weight of a prefabricated slab is lower, the quality of finished superimposed sheets is made to be greatly improved, production cost is effectively lowered, and thus the steel web prestress concrete superimposed sheet is a good substitute of a common prefabricated concrete superimposed sheet.
Description
Technical field
The invention belongs to the architectural shape technical field, relate to a kind of steel web (concrete or the steel edge of a wing) prestressed concrete overlapped slab.
Background technology
Concrete floor system can be divided into cast-in-place monolithic by job practices, whole three types of assembling and assembling.
1, cast-in-place concrete building roof:
It is good that cast-in-place integral cover has integral rigidity, anti-seismic performance is strong, water resistance is good and be applicable to the advantages such as superstructure of particular topology, thereby be widely used in multi storied industrial factory building, the flooring of layout complexity, the entrance hall part of public building has the flooring of vibrations load action, highrise building flooring and the flooring of shockproof requirements is arranged.The shortcoming of cast-in-place monolithic superstructure is that the template materials are many, construction wet trade amount is big, speed is slow, produces more difficult industrialization.
2, precast assemble floor:
Precast assemble floor is formed by prefabricated entirely, and it is fast to have a speed of application, is convenient to suitability for industrialized production and mechanized construction, labor savings, the situ wet operation is few, saves three materials, advantages such as short construction period, but its globality is poor, the plate seam is more difficult, poor seismic behavior, flexible arrangement degree difference etc.Therefore, its range of application is subjected to bigger restriction.
3, assembled integral superstructure:
The assembled integral superstructure is about to prefabricated units behind hoisted in position, makes it to become integral body by certain measure.Whole measure commonly used at present has: the plate face is made the arrangement of reinforcement in-situ layer.Cast-in-place advantage and the one with precast assemble floor of assembled integral floor collection compared with the Cast-in-situs type superstructure, can reduce formwork and concrete construction wet trade amount, shortens construction period, realizes the pre-erection suitability for industrialized production; Compare with precast assemble floor, its integral rigidity and anti-seismic performance all improve greatly, so for the bigger multi storied industrial factory building of some load, highrise building and building that requirements for fortification against earthquake is arranged, also can adopt this form of structure.
Iterative structure belongs to cast in place and precast construction between cast-in-place monolithic and assembling.The steel web prestressed concrete overlapped slab that the present invention mentions belongs to iterative structure, has following characteristics: the main part of the force of (1) this structure is to make in factory, the mechanization degree height, and professional technique is skilled, thereby the component quality height.(2) template of prefabricated units can be reused, and when cast-in-place part is constructed, can utilize prefabricated units to make scaffold and template, than monolithic construction labor and material saving, and the reduction of erection time.(3) adopt prestressing technique, use high strength steel to save steel using amount, improved the crack resistance of member in the construction stage.(4) volume is little, in light weight, transporting and hoisting is all more convenient, and is bigger than flexibility and the applicability of fabricated construction.(5) this prefabricated units floor has prestressing force, eccentric throw be prestressed reinforcement to the distance of the member section centre of form, so this precast plate can produce certain antiarch value.The big antiarch value of eccentric throw is big, and the little antiarch value of eccentric throw is little.
In the domestic existing floor, cast-in-place concrete floor is taken a lot of work, and expense is expected, long construction period, needs formwork, form removal, and efficiency of construction is low; Prefabricated assembled concrete floor and beam-column connection are comparatively complicated, and globality is relatively poor; Profiled sheet combination concrete floor has reduced stud, need do fire prevention and handle and fit up furred ceiling; Existing laminated floor slabs such as prestressed concrete slab laminated floor slab, circular hole slab laminated floor slab, sandwich reinforced concrete slab have prefabricated dull and stereotyped bending rigidity lower, and flat board is thicker, the transportation frangibility, and span centre need arrange shortcomings such as support during construction.
Summary of the invention
At above technical deficiency, the invention provides a kind of with low cost, easy to process, the steel web prestressed concrete overlapped slab of superior performance, long service life.
To achieve these goals, the present invention adopts following technical scheme.
A kind of steel web prestressed concrete overlapped slab comprises base plate, at least one steel web (steel web shape can be corrugated steel web or straight steel plate etc.), at least one edge of a wing (edge of a wing can be the concrete edge of a wing or the steel edge of a wing etc.); The quantity on described steel web and the edge of a wing is identical, and steel web vertical fixing is arranged between the edge of a wing and the base plate.
The quantity on the described edge of a wing be two or more than, the edge of a wing is arranged in parallel.
Preferred according to the present invention, described base plate is the inner concrete slab that is provided with prestressed reinforcement; The described edge of a wing is the inner steel concrete stick that is provided with reinforcing bar; Described many brace summers are the inner steel concrete stick that is provided with reinforcing bar.
Preferred according to the present invention, described base plate thickness is preferably 30-40mm, and width is preferably 1000mm.
Steel web type selecting has multiple among the present invention: straight steel web type, corrugated steel web type (sine curve type, trapezoidal etc.), discontinuous formula steel web type, two bar straight parallel steel web types etc.
The steel web can prefabricated perforate among the present invention, so that floor pipeline, reinforcing bar pass, pitch-row is 150mm-200mm, and hole shape can be square, circular, ellipse etc., and hole size should be not less than 30mm.
The edge of a wing can be the steel concrete edge of a wing among the present invention, the steel edge of a wing or other form edges of a wing etc.
The each several part scantling changes with variations such as floor span, working load requirements among the present invention.
Water superimposed part concrete after among the present invention and should be higher than pre-erection edge of a wing top 25mm at least.
Beneficial effect of the present invention:
1. steel web prestressed concrete overlapped slab of the present invention, it is with low cost, easy to process, superior performance, long service life; Described superimposed sheet has from heavy and light, and bending resistance, shearing resistance and antitorque bearing capacity advantages of higher are very good structural element.
2. adopt the steel web among the present invention, effectively utilized rigidity, anti-flexing supporting capacity outside the good plane of steel web, shear-carrying capacity; The simple amount of employed mould is few, easy to make when the preparation superimposed sheet; Can reserve the pipeline hole at the steel web; Base plate and corrugated steel web one-time cast-forming do not have constuction joint, make finished product superimposed sheet quality improve greatly.
3. base plate top (rib is made up of steel web and the edge of a wing) with ribbing, effectively reduced base plate thickness, improved the bending rigidity of prefabricated superimposed sheet, and under the prestressing force effect, form certain prestressing camber value, improved the prestressing force service efficiency, effectively reduce production costs, performance is much better than common precast concrete superimposed sheet.
4. superimposed sheet of the present invention is compared with all the other prestressed concrete overlapped slabs with ribbing, has following substantial difference and advantageous feature:
A. the present invention has effectively utilized rigidity, anti-flexing supporting capacity outside the good plane of steel web, shear-carrying capacity, and mould is simple, easy to make, the web hole can be according to the cable designs situation, on-the-spot perforate, cost reduces greatly, and make efficiency is accelerated, and has improved the mechanical property of superimposed sheet; B. the steel web of the present invention's employing has littler cross section than all the other prestressed concrete overlapped slab webs with ribbing, and it is lighter to conduct oneself with dignity; C. the present invention can be by optimizing the profile of steel web, and the fixed coefficient on itself and base plate and the edge of a wing is increased greatly.D. the present invention can select different steel web shapes according to actual conditions, and edge of a wing form.
Description of drawings
Fig. 1 is the structural representation of corrugated steel web prestressed concrete overlapped slab;
Fig. 2 is the structural representation of Dan Zhigang web prestressed concrete overlapped slab;
Fig. 3 is the structural representation of two straight steel web prestressed concrete overlapped slabs;
Fig. 4 is the structural representation of corrugated steel web-steel edge of a wing prestressed concrete overlapped slab;
Fig. 5 is the structural representation of Dan Zhigang web-steel edge of a wing prestressed concrete overlapped slab;
Fig. 6 is the structural representation of two straight steel webs-steel edge of a wing prestressed concrete overlapped slab;
Fig. 7 is the structural representation of wall scroll corrugated steel web prestressed concrete overlapped slab;
In Fig. 1-7,1, prestress baseboard; 2, the edge of a wing; 3, steel web.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
As Fig. 1-shown in Figure 7, a kind of steel web prestressed concrete overlapped slab, comprise prestress baseboard 1, at least one edge of a wing 2(concrete, steel or other form edges of a wing), the single straight steel plate of at least one steel web 3(, two straight steel plates, corrugated steel web or other forms), described steel web 3 is identical with the quantity on the edge of a wing 2, and steel web 3 vertical fixing are arranged between the edge of a wing 2 and the prestress baseboard 1.
Described prestress baseboard 1 is the inner concrete slab that is provided with prestressed reinforcement; The described edge of a wing 2 is provided with the steel concrete stick of reinforcing bar or adopts form such as the steel edge of a wing for inner; That the form of described steel web 3 has is multiple (present embodiment is preferred 3 kinds).
The material of the concrete slab of described prestress baseboard 1 is the C50 concrete; Described steel web prestressed concrete overlapped slab size is decided with engineering is actual; The preferred 1570 grades of φ of prestressed reinforcement
HThe helix rib steel wire 4.8 eliminate stress.
Among the embodiment 1, as shown in Figure 1, steel web 3 is corrugated steel web, two of quantity, and the edge of a wing is the concrete edge of a wing, is arranged in parallel.
Among the embodiment 2, as shown in Figure 2, steel web 3 is the Dan Zhigang web, two of quantity, and the edge of a wing is the concrete edge of a wing, is arranged in parallel.
Among the embodiment 3, as shown in Figure 3, steel web 3 is two straight steel webs, two of quantity, and the edge of a wing is the concrete edge of a wing, is arranged in parallel.
Among the embodiment 4, as shown in Figure 4, steel web 3 is corrugated steel web, two of quantity, and the edge of a wing is the steel edge of a wing, is arranged in parallel.
Among the embodiment 5, as shown in Figure 5, steel web 3 is the Dan Zhigang web, two of quantity, and the edge of a wing is the steel edge of a wing, is arranged in parallel.
Among the embodiment 6, as shown in Figure 6, steel web 3 is two straight steel webs, two of quantity, and the edge of a wing is the steel edge of a wing, is arranged in parallel.
Among the embodiment 7, as shown in Figure 7, steel web 3 is corrugated steel web, one of quantity, and the edge of a wing is the concrete edge of a wing.
Experimental data:
Steel web prestressed concrete overlapped slab of the present invention is carried out the anti-bending bearing capacity test.Board size is: prestress baseboard 1 wide 1000mm, length 2850mm, clear span 2700mm(two end bearing shelving length 75mm); Steel web 3 forms are 2 sinusoidal ripple steel webs such as Fig. 1, the high 35mm of steel web 3, and the thickness 1.5mm of steel web 3, the perforate of steel web is Φ 30@200; The edge of a wing 2 is the concrete edge of a wing, 2 wide 150mm in the concrete edge of a wing, long 2850mm, thick 35mm; Adopting Unit Weight when the corrugated web prestressed concrete overlapped slab being carried out the anti-bending bearing capacity experiment is the sandbag of 10kg, (every grade loads 160Kg with the hierarchical loading form, 16 sandbags load 15 grades altogether) evenly be placed on the described superimposed sheet, with the simulation evenly distributed load.Result of the test draws: span is the cracking load 4.01kN/m of the corrugated web prestressed concrete overlapped slab of 2700mm
2＞3.5kN/m
2(construction stage total load), mid-span deflection are 17mm＜L/200=20.2mm, and wherein L is the span of corrugated web prestressed concrete overlapped slab, anti-bending bearing capacity 8.5kN/m
2, satisfy intensity and rigidity requirement.
Though above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (9)
1. a steel web prestressed concrete overlapped slab is characterized in that, comprises base plate, at least one steel web, at least one edge of a wing; The quantity on described steel web and the edge of a wing is identical, and steel web vertical fixing is arranged between the edge of a wing and the base plate.
2. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, the quantity on the described edge of a wing be two or more than, the edge of a wing is arranged in parallel.
3. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, described base plate is the inner concrete slab that is provided with prestressed reinforcement; The described edge of a wing is the inner steel concrete stick that is provided with reinforcing bar.
4. a kind of steel web prestressed concrete overlapped slab as claimed in claim 3 is characterized in that the material of described concrete slab is the C50 concrete; In base plate, evenly be provided with prestressed reinforcement; Described prestressed reinforcement is preferably 1570 grades of φ
HThe helix rib steel wire 4.8 eliminate stress.
5. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, described base plate thickness is 30-40mm, and width is 1000mm.
6. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, described steel web is straight steel web type, corrugated steel web type, discontinuous formula steel web type or two bar straight parallel steel web type.
7. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, the prefabricated perforate of described steel web, and pitch-row is 150mm-200mm, and hole shape is square, circular or oval, and the hole is not less than 30mm.
8. steel web prestressed concrete overlapped slab as claimed in claim 1 is characterized in that, the described edge of a wing is the steel concrete edge of a wing or the steel edge of a wing.
9. a kind of steel web prestressed concrete overlapped slab as claimed in claim 8 is characterized in that the described edge of a wing is the concrete edge of a wing, evenly is provided with 2 reinforcing bars in the edge of a wing, and described reinforcing bar is 2 φ 6HPB300 grade reinforcing steels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310297726.1A CN103334526B (en) | 2013-07-16 | 2013-07-16 | A kind of steel web prestressed concrete overlapped slab |
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| CN201310297726.1A CN103334526B (en) | 2013-07-16 | 2013-07-16 | A kind of steel web prestressed concrete overlapped slab |
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| CN103334526B CN103334526B (en) | 2016-01-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756270A (en) * | 2016-04-02 | 2016-07-13 | 张波 | Waved steel plate type laminated slab component |
| CN105756278A (en) * | 2016-04-01 | 2016-07-13 | 张波 | Groove type steel plate laminated slab component |
| CN105822012A (en) * | 2016-04-01 | 2016-08-03 | 山东万斯达建筑科技股份有限公司 | Bent groove-shaped steel plate type laminate member |
| CN106223520A (en) * | 2016-08-08 | 2016-12-14 | 四川三阳钢结构有限公司 | A kind of thin light laminated floor slab and manufacture method |
| CN107190884A (en) * | 2017-06-09 | 2017-09-22 | 东南大学 | A kind of new many high-rise hot-rolled steel section composite light-weight steel shear wall combined structure systems |
| CN107268419A (en) * | 2017-07-24 | 2017-10-20 | 中交二航局南方工程有限公司 | Hinge device transporting equipment |
| CN113526339A (en) * | 2021-07-13 | 2021-10-22 | 山东大学 | Ribbed laminated slab with stacking and hoisting integrated piece and stacking and hoisting method thereof |
| CN113530052A (en) * | 2021-07-13 | 2021-10-22 | 山东大学 | Ribbed laminated slab with stacking and hoisting integrated piece and stacking and hoisting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029980A1 (en) * | 1997-12-10 | 1999-06-17 | James Hardie Research Pty. Limited | Floor/ceiling construction method |
| CN101748682A (en) * | 2010-01-22 | 2010-06-23 | 清华大学 | Steel-concrete composite beam adopting corrugated steel web and construction method thereof |
| DE102010021887A1 (en) * | 2010-05-28 | 2011-12-01 | Schneider Betonfertigteilewerk Gmbh | Concrete ceiling, has high-strength concrete shell designed without reinforcement unit that is utilized for load-bearing capacity of ceiling, during tensile stress, and forming formwork for in-situ concrete, which comprises steel strands |
| CN102409786A (en) * | 2011-09-09 | 2012-04-11 | 邹剑强 | Concrete reinforced channeled steel plate, building roof panel and construction method of building roof panel |
| CN102628304A (en) * | 2012-04-23 | 2012-08-08 | 山东大学 | Corrugated web prestressed concrete laminated plate and preparation method thereof |
-
2013
- 2013-07-16 CN CN201310297726.1A patent/CN103334526B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029980A1 (en) * | 1997-12-10 | 1999-06-17 | James Hardie Research Pty. Limited | Floor/ceiling construction method |
| CN101748682A (en) * | 2010-01-22 | 2010-06-23 | 清华大学 | Steel-concrete composite beam adopting corrugated steel web and construction method thereof |
| DE102010021887A1 (en) * | 2010-05-28 | 2011-12-01 | Schneider Betonfertigteilewerk Gmbh | Concrete ceiling, has high-strength concrete shell designed without reinforcement unit that is utilized for load-bearing capacity of ceiling, during tensile stress, and forming formwork for in-situ concrete, which comprises steel strands |
| CN102409786A (en) * | 2011-09-09 | 2012-04-11 | 邹剑强 | Concrete reinforced channeled steel plate, building roof panel and construction method of building roof panel |
| CN102628304A (en) * | 2012-04-23 | 2012-08-08 | 山东大学 | Corrugated web prestressed concrete laminated plate and preparation method thereof |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756278B (en) * | 2016-04-01 | 2018-04-06 | 张波 | Groove type sheet pack panel members |
| CN105756278A (en) * | 2016-04-01 | 2016-07-13 | 张波 | Groove type steel plate laminated slab component |
| CN105822012A (en) * | 2016-04-01 | 2016-08-03 | 山东万斯达建筑科技股份有限公司 | Bent groove-shaped steel plate type laminate member |
| CN105822012B (en) * | 2016-04-01 | 2018-06-22 | 山东万斯达建筑科技股份有限公司 | Bend groove type steel plate type overlapping board member |
| CN105756270A (en) * | 2016-04-02 | 2016-07-13 | 张波 | Waved steel plate type laminated slab component |
| CN105756270B (en) * | 2016-04-02 | 2018-08-14 | 张波 | Waveform steel plate type overlaps board member |
| CN106223520A (en) * | 2016-08-08 | 2016-12-14 | 四川三阳钢结构有限公司 | A kind of thin light laminated floor slab and manufacture method |
| CN107190884A (en) * | 2017-06-09 | 2017-09-22 | 东南大学 | A kind of new many high-rise hot-rolled steel section composite light-weight steel shear wall combined structure systems |
| CN107268419A (en) * | 2017-07-24 | 2017-10-20 | 中交二航局南方工程有限公司 | Hinge device transporting equipment |
| CN107268419B (en) * | 2017-07-24 | 2022-02-11 | 中交二航局南方工程有限公司 | Hinge transport equipment |
| CN113526339A (en) * | 2021-07-13 | 2021-10-22 | 山东大学 | Ribbed laminated slab with stacking and hoisting integrated piece and stacking and hoisting method thereof |
| CN113530052A (en) * | 2021-07-13 | 2021-10-22 | 山东大学 | Ribbed laminated slab with stacking and hoisting integrated piece and stacking and hoisting method thereof |
| CN113526339B (en) * | 2021-07-13 | 2023-10-13 | 山东大学 | Ribbed laminated plate with stacking and hoisting integrated piece and stacking and hoisting method thereof |
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| CN103334526B (en) | 2016-01-13 |
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Effective date of registration: 20211020 Address after: Room 156, No. 62, xiaozhuangke village, Yongning Town, Yanqing District, Beijing 102104 Patentee after: Beijing qingshengjian Engineering Technology Research Institute Co.,Ltd. Address before: 250061, No. ten, No. 17923, Lixia District, Ji'nan City, Shandong Province Patentee before: SHANDONG University |