CN1372058A - Support node for top floor slab form of storied building - Google Patents
Support node for top floor slab form of storied building Download PDFInfo
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- CN1372058A CN1372058A CN 02116395 CN02116395A CN1372058A CN 1372058 A CN1372058 A CN 1372058A CN 02116395 CN02116395 CN 02116395 CN 02116395 A CN02116395 A CN 02116395A CN 1372058 A CN1372058 A CN 1372058A
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- support node
- floor slab
- girder
- top floor
- supporting plate
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Abstract
The present invention discloses a building top plate formwork support joint, including supporting groove, supporting plate and main beam. The described supporting groove is formed from lower upright column and upper U-shaped groove, two outer sides of said U-shaped groove are equipped with unit device for positioning tie bar respectively, and the described supporting plate is made into the inverted U-shaped form, the main beam is placed into the U-shaped groove of supporting groove, and the inverted U-shaped supporting plate is cover-mounted on the main beam, and on the supporting plate the trapezoid auxiliary primstic frame can be laid. Its structure design is resonable and convenient for construction.
Description
Technical field
The present invention relates to a kind of support node for top floor slab form of storied building.
Background technology
The building operations of building floor generally is to lay top floor slab form of storied building on the bracing frame that sets up in advance, now setting up each required support node of bracing frame is generally all made fixing dead by the wooden materials assembly unit, adopt this type of support node, making and dismounting effort are time-consuming, it is big to use limitation, and removing the many materials repeated uses in back can not use for 3 to 5 times again, the waste physical resources, especially current era, the building trade development of advancing by leaps and bounds, the building amount strengthens day by day, and the timber resources waste quantity that causes thus is surprising; And, careless slightlyly in the middle of the construction will cause fire and consequence is difficult to the imagination because timber is inflammable thing.
Summary of the invention
The purpose of this invention is to provide that a kind of assembly unit is easy, convenient construction and repeatedly used support node for top floor slab form of storied building.
For achieving the above object, the present invention takes following design scheme: this support node for top floor slab form of storied building, comprise bracket, supporting plate, girder, described bracket is made of the ∪ type groove of lower pillar stand and upper end, and ∪ type groove two outsides are provided with the cell arrangement for drawknot bar location; Described supporting plate is the type of falling ∪ shape; Girder is positioned in the ∪ type groove of bracket, and button is established the type of falling ∪ supporting plate on girder, lays auxiliary edge-frame on the supporting plate.
Even for saving material and bearing the roof plate template pressure of laying the top, described auxiliary edge-frame is made the ladder shape.
For adapting to different construction requirements, described girder adjustable in length, active connection-core stupefied by the hollow master at two ends and interlude is formed.
Advantage of the present invention is:
1, reasonable in design can satisfy the floor slab construction of the different standard widths of a room in an old-style house, depth.
2, intensity, rigidity, good stability, steel using amount is few, and is in light weight, and dismounting is flexible, and is easy to use, and effect is good.
3, all node component can be used more than 200 times repeatedly, can save goods and materials;
4, node can all adopt light steel part; make whole support system without timber; traditional architecture industry a large amount of drawbacks that consume timber, waste natural resources in construction have been solved; can save thousands of balks; reduce the construction cost of enterprise; economic benefit is considerable, and to protect forest resources, ecological environment is significant.
5, the job site utilizes the form surfacing of support node laying of the present invention can adopt the plastic plate of bulk, has eliminated disaster hidden-trouble, and piece is few, does not run slurry, and the concrete surface of being built is smooth, bright and clean, and quality is good, and can cut convenient construction arbitrarily.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a ∪ type bracket structural representation
Fig. 3 is a drawknot bar structural representation
Fig. 4 is the type of falling a ∪ support board structure schematic diagram
Fig. 5 is the auxiliary edge-frame structural representation
Fig. 6-A is the main beam structure schematic diagram
Fig. 6-B is the local part structural representation of girder
The specific embodiment
As shown in Figure 1, support node for top floor slab form of storied building of the present invention mainly comprises bracket 1, girder 2, supporting plate 3, auxiliary edge-frame 4 and drawknot bar 6.
Referring to Fig. 2, described bracket 1 is made of the ∪ type groove 102 of lower pillar stand 101 and upper end, and ∪ type groove two outsides are provided with the cell arrangement 103 for drawknot bar location, and the cell arrangement of this confession drawknot bar location is good with cylindrical draw ring.The structure of drawknot bar is placed between two support nodes as shown in Figure 3, plays firm effect.
Shown in Figure 4 is the structural representation that is the type of falling ∪ shape supporting plate.
As shown in Figure 5, the structure of auxiliary edge-frame 4 is the ladder shape, can be according to the construction requirement of different slab thicknesses, the auxiliary edge-frame of preparation plurality of specifications, design now has 900 * 600,900 * 450,900 * 300 3 kinds of specifications, wherein 900 * 600 specifications also can be turned 90 ° of directions uses, have reduced support interval like this, can satisfy the construction requirement of super thick floor.
Girder 2 can adopt whole square beam, also can adopt the technical scheme shown in Fig. 6-A, Fig. 6-B: the active connection-core 202 by hollow master at two ends stupefied 201 and interlude is formed, the master is stupefied to be 50 * 100 square steel pipes, middle active connection-core is 40 * 80 thin hollow square steel pipes, (above-below direction leaves the gap to the hollow square hole of main stupefied steel pipe greater than the square tube housing of active connection-core, can adapt to large span floor construction arch camber requirement), it can regulate length with freely stretching the combination back, to satisfy the housing construction requirement of the different standard widths of a room in an old-style house, depth; Stupefied steel inwall of junction master and inner core leave the gap up and down, connect for living, and can satisfy the technical requirements of large span template support arch camber in the construction.
Described each parts are made by steel.
With reference to Fig. 1, during enforcement, support node for top floor slab form of storied building is installed bracket earlier, then girder is positioned in its ∪ type groove, and button is established the type of falling ∪ supporting plate on girder, lays auxiliary edge-frame on the supporting plate, puts form surfacing above again, loads onto the drawknot bar, finishes whole assembling.Described form surfacing can be selected 8 thick plastic plates for use, arbitrarily cutting, and convenient construction, and plastic plate can be made into the bulk board face, and piece is few, and the concrete of being built does not run slurry, surfacing, fineness is good.After using repeatedly, also wants plastic plate to be recycled compliance with environmental protection requirements
Below be support node structural calculation of the present invention and economic analysis.Attached: structural calculation one, design conditions: with reference to support node for top floor slab form of storied building figure (Fig. 1)
1, template design conditions
(1) leads stupefied spacing 960, main stupefied section 50 * 100, auxiliary edge-frame effective span 900.
The auxiliary edge-frame skeleton is 30 * 60 * 2.5 hollow square steel pipes, and the plate face is the thick plastic plate of 8mm.
(2) the auxiliary edge-frame specification is three kinds: 900 * 600,900 * 450,900 * 300,
Wherein 900 * 600 can turn to 90 degree, calculate the bearing capacity of its 600 span.
(3) the elongated member button of the type of falling ∪ supporting plate be placed on 50 * 100 main stupefied on, auxiliary edge-frame is placed on the cantilever of the type of falling ∪ supporting plate 30mm.
(4) calculate setting
A, main stupefied no lateral twisting distortion
B, two auxiliary edge-frames are placed side by side, each auxiliary edge-frame frame 30mm, and two and put only 60mm, so construction point load 2.5KN is born jointly by two frames.Also bear when being placed on the plate face by two frames as point load.
2, basis
(1) " steel frame plywood formwork tecnical regulations " JGJ96-95
(2) " combined steel formwork tecnical regulations " GB50214-2001
(3) " Technical code for design of coldformed thin wall steel structures " GBJ18-87
(4) " the construction handbook third edition 4
(5) " structural steel design handbook
3, calculate load and the index of correlation (1) selected for use and calculate the load of selecting for use
A) constructor and equipment characteristic value of load
q
1=2.5KN/m
2Uniform
Big value is got in the two and other load combinations.
P
1=2.5KN concentrates
B) concrete and reinforcing bar are heavy: q
2=25.1 KN/m
3
C) calculate inverted U-shaped supporting plate working load q
1'=2.5KN/m
2(2) working load partial safety factor 1.4 (3) the loads combination newly placed concrete partial safety factor 1.2 C dead load partial safety factor 1.2 B coefficient A relevant))) with load
Bearing capacity combination 1=dead load+newly placed concrete+construction evenly distributed load
Bearing capacity combination 2=dead load+newly placed concrete+construction point load
The normal combination 1=dead load+newly placed concrete+construction evenly distributed load of using
Normal combination 2=dead load+newly placed concrete+construction point load (4) the steel Q that uses
235Tensile strength f=205N/mm
2
Shear strength f=120N/mm
2
Rigidity permissible value f=L/500=900/500=1.8mm
(amount of deflection)＜1.5mm (5) 30 * 60 * 2.5 square steel pipes, section factor
Area 4.089cm
2Deadweight 3.2kg/m
Moment of inertia Ix=17.933cm
4Iy=5.998cm
4
Modulus of section Wx=5.977cm
3Wy=3.998cm
3(6) auxiliary edge-frame deadweight (comprising 8 thick plastic plates)
900×600??0.44KN/m
2??900×450??0.48KN/m
2；900×300??0.55KN/m
2
Get 0.5KN/m
2(7) steel Q
235E=2.06 * 10
5N/mm
2Two, 900 * 600 auxiliary edge-frame templates are calculated: slab thickness weighs 0.2 * 25.1 * 0.6 * 1.2=3.61KN/m by conduct oneself with dignity 0.5 * 0.6 * 1.2=0.36KN/m concrete and reinforcing bar of the equal template of 200mm (one) 900 span direction q=3.97 perseverance (1) load q=6.07 perseverance+execute
Execute collection dead load 0.36 * 3.61=3.97KN/m uniform lotus of constructing and cut 2.5 * 0.6 * 1.4=2.1KN/m construction point load, 2.5 * 1.4=3.5KN/m
Permanent+as to execute all (2) internal force M1=0.125 * 6.07 * 900
2=614588Nmm M2=0.125 * 3.97 * 900
2+ 0.25 * 3500 * 900
=401963+787500=1189463Nmm perseverance+execute collection Q1=0.5 * 6.07 * 900=2732N perseverance+execute equal Q2=0.5 * 3.97 * 900+0.5 * 3500
=1787+1750=3537N perseverance+execute collection (3) intensity, Rigidity Calculation
δ＝M/W＝1189463/(2×5.977×10
3)＝99.5N/mm
2＜205N/mm
2
τ＝3Q/2hoδ＝(3×3537)/(2×2×60×5)＝8.84N/mm
2＜120N/mm
2
f＝5qL
4/3?84EI+PL
3/48EI
＝(5×3.97×900
4)/(384×2.06×10
5×2×17.933×10
4)+(3500×900
3)/(48×2.06×10
5×2×17.933×10
4)
＝0.46+0.72＝1.18mm????＜1.8mm
＜1.5mm
Show by aforementioned calculation, meet the demands.(4) inverted U-shaped supporting plate calculates
Q＝3537N??e＝20mm
M＝3537×20＝70740Nmm
b＝600mm??δ＝3mm
I＝(600×3
3)/12＝1350mm
4??W＝(600×3
2)/6＝900mm
3
δ＝70740/900＝78.6N/mm
2＜205N/mm
2
f＝PL
3/3EI＝(3537×20
3)/(3×2.06×10
5×1350)＝0.03mm
Meet the demands
(5) the template face calculates
The template face is the thick plastic plate of 8mm, because of support interval is 120mm only, meets the demands the Therefore, omited.
Result of calculation
Economic analysis
| The auxiliary edge-frame specification | Allow slab thickness mm | ??δN/mm 2 | ??fmm | Remarks |
| 900×600 L＝900 L＝600 | ??200 ??700 | ??99.5 ??163.0 | ??1.18 ??1.36 | |
| 900×450 L＝900 | ??400 | ??114.0 | ??1.54 | |
| 900×300 L＝900 | ??600 | ??113.3 | ??1.52 |
This support node adopts assembly type, and it is about 30% to improve work efficiency than the wooden support fixation formula of tradition operating personnel, and material cost is only counted in this analysis.The material price of counting is the Beijing area price.
One, conventional fixed formula wood supports, support member timber, template face bamboo offset plate 1, used timber
10 * 10 flitch 1m, 5 * 10 flitch 4m, 14.5 * 1+7.3 * 4=43.7 unit/m
2
Consideration nail cost is taken advantage of 1% coefficient, 43.1 * 1.01=44.14 unit/m
2
Support timber and can use 5 times 44.14 ÷ 5=8.38 unit/m repeatedly
22,41.5 yuan/m of used bamboo offset plate
2
Consideration nail cost is taken advantage of 1% coefficient, 41.5 * 1.01=41.92 unit/m
2
The bamboo offset plate can use 5 times 41.92 ÷ 5=8.38 unit/m repeatedly
23, the m of material cost 8.83+8.38=17.21 unit
2Two, adopt this support node, the support member steel tubing, template face plastic plate 1, used steel tubing 50 * 100 square steel pipe 1m, 30 * 60 square steel pipe 10m, 120 wide 1m are long for 3 steel plates
16.93 * 11+8 * 1=194.23 unit/m
2
Consideration welding processing cost is taken advantage of 1% coefficient, 194.23 * 1.1=213.65 unit/m
2
Support tubing and can use 213.65 ÷ 200=1.07 unit/m more than 200 times repeatedly
22,41 yuan/m of used plastic plate
2
After plastic plate can use 5 times repeatedly, old material reclaimed, and the rate of recovery is considered by 90%, reclaims price and purchasing price and forms cost recovery coefficient 0.385
41 ÷, 5 * (0.385/0.9)=8.2 * 0.427=3.5 unit/m
23, the m of material cost 1.07+3.5=4.57 unit
2Three, relatively
| Material cost unit/m 2 | Remarks | |||
| Tradition wood supports | ?????17.21 | ??1 | ??3.77 | |
| This support node | ?????4.57 | ??0.266 | ??1 |
This support node supports than tradition wood, saves Master Cost about 3/4.
Claims (6)
1, a kind of support node for top floor slab form of storied building comprises bracket, supporting plate, girder, it is characterized in that: described bracket is made of the ∪ type groove of lower pillar stand and upper end, and ∪ type groove two outsides are provided with the cell arrangement for drawknot bar location; Described supporting plate is the type of falling ∪ shape; Girder is positioned in the ∪ type groove of bracket, and button is established the type of falling ∪ supporting plate on girder, lays auxiliary edge-frame on the supporting plate.
2, support node for top floor slab form of storied building according to claim 1 is characterized in that: described auxiliary edge-frame is the ladder shape.
3, support node for top floor slab form of storied building according to claim 1 is characterized in that: described girder is made up of the hollow girder at two ends and the active connection-core of interlude.
4, support node for top floor slab form of storied building according to claim 3 is characterized in that: described girder is a square steel pipe, and middle active connection-core is thin hollow square steel pipe, and the hollow square hole of girder steel pipe is greater than the square tube housing of active connection-core.
5, support node for top floor slab form of storied building according to claim 1 is characterized in that: described each parts are made by steel.
6, support node for top floor slab form of storied building according to claim 1 is characterized in that: described cell arrangement for drawknot bar location is cylindrical draw ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116395 CN1227431C (en) | 2002-04-01 | 2002-04-01 | Support node for top floor slab form of storied building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116395 CN1227431C (en) | 2002-04-01 | 2002-04-01 | Support node for top floor slab form of storied building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1372058A true CN1372058A (en) | 2002-10-02 |
| CN1227431C CN1227431C (en) | 2005-11-16 |
Family
ID=4744093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02116395 Expired - Fee Related CN1227431C (en) | 2002-04-01 | 2002-04-01 | Support node for top floor slab form of storied building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227431C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277959A (en) * | 2011-05-13 | 2011-12-14 | 中国新兴保信建设总公司 | Standard steel frame formwork system for concrete floor slabs and construction method thereof |
| CN102330495A (en) * | 2010-07-14 | 2012-01-25 | 无锡圣泰建筑模板有限公司 | Supporting structure for building |
| CN108222545A (en) * | 2018-03-05 | 2018-06-29 | 北京市住宅产业化集团股份有限公司 | A kind of precast floor slab support device |
-
2002
- 2002-04-01 CN CN 02116395 patent/CN1227431C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330495A (en) * | 2010-07-14 | 2012-01-25 | 无锡圣泰建筑模板有限公司 | Supporting structure for building |
| CN102330495B (en) * | 2010-07-14 | 2016-03-30 | 无锡圣泰建筑模板有限公司 | Supporting construction for building |
| CN102277959A (en) * | 2011-05-13 | 2011-12-14 | 中国新兴保信建设总公司 | Standard steel frame formwork system for concrete floor slabs and construction method thereof |
| CN108222545A (en) * | 2018-03-05 | 2018-06-29 | 北京市住宅产业化集团股份有限公司 | A kind of precast floor slab support device |
| CN108222545B (en) * | 2018-03-05 | 2023-10-17 | 北京市住宅产业化集团股份有限公司 | Precast floor plank strutting arrangement |
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| Publication number | Publication date |
|---|---|
| CN1227431C (en) | 2005-11-16 |
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