CN1057876A - The successively design of lift slab building to withstand earthquake floor and job practices - Google Patents
The successively design of lift slab building to withstand earthquake floor and job practices Download PDFInfo
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- CN1057876A CN1057876A CN 91103473 CN91103473A CN1057876A CN 1057876 A CN1057876 A CN 1057876A CN 91103473 CN91103473 CN 91103473 CN 91103473 A CN91103473 A CN 91103473A CN 1057876 A CN1057876 A CN 1057876A
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Abstract
The invention belongs to the design and the job practices of building to withstand earthquake floor in the construction work, be a kind of by many, the size in each room of high-rise building, floor is designed to one piece every whole the big floor more smaller than this room dead size, the big floor of prefabricated on the spot this piece on the terrace in each room just during construction, carry out wall construction then, after reaching the absolute altitude of this one deck, utilize four corners of this body of wall to make heavy frame, prefabricated big floor is risen to design height along the room wall endothelium, be placed on the interim joist, after around the big floor, grow fulcrum again, make big floor be supported along four sides and lay on the wall.After whole the big floor in each room of this layer all installed, the plate seam of each adjacent big floor carried out reinforcing bar connects and the cast-in-situ concrete processing, make each big floor of original dispersion be unified into an integral body.
Description
The invention belongs to the design and the job practices of many, the high-rise building to withstand earthquake floor of construction work.
In many, high-rise building, the structural shape of floor and job practices be to guaranteeing the globality of building, improves the antidetonation evil ability of building and speed up the work, reduce construction costs to have conclusive effect.
The structural shape of traditional reinforced concrete floor has two kinds:
One, precast floor slab is hollowcore slab, trough slab mostly, all is in prefabricated plant produced, transports the building site then to and uses, and the workload of transportation, stacking is very big.This floor all is assembled by the single load bearing plate of fritter, and the globality of floor is poor, and the ability of antidetonation evil is very low, but because it is prefabricated, and speed of application is very fast, is therefore adopted in a large number.
Two, cast-in-place whole floor, the globality of this floor is fine, and it is very capable that antidetonation does harm to, and also do not have precast floor slab such member transportation, erection procedure, avoided a series of shortcomings of precast floor slab fully.But its construction needs a large amount of templates and the complicated procedures of forming of these templates of demolition, installation repeatedly, and consumption of materials is very big, manage very difficult, long in time limit, the cost height.Therefore, not special requirement, generally all do not adopt.
The objective of the invention is to adopt a kind of terrace of every floor plate that utilizes to make soffit formwork, just on the terrace in each room a prefabricated on the spot undersized in whole big floor of this room dead size, make the floor of this room last layer, after treating that the wall construction of this one deck is intact, just utilize this body of wall to make fulcrum, whole prefabricated big floor risen to design attitude, and then after around the big floor, grow fulcrum, supporting on the wall, after whole the big floor in this each room of one deck all is respectively installed to the position, in each adjacent plate seam, pour into concrete again, make original whole the big floor that disperses of this one deck all be unified into an integral body, form the big floor of whole layer of this one deck.So successively construction is all built up until building.This floor many, high-rise building had both had cast-in-place whole floor good integrity, the strong advantage of antidetonation evil ability, the use templates and the difficulty of these templates of demolition, installation in a large number repeatedly when avoiding the cast-in-situ floor construction again; Both had the fast advantage of prefabricated slab speed of application, the difficulty of avoided a large amount of transportations again, stacking prefabricated units.Reach and make the floor good integrity, antidetonation evil ability is strong, easy construction, and the duration is short, the low and purpose being convenient to generally apply of cost.
Content of the present invention is the size of taking by each room of building, design a monoblock and be the solid of supported along four sides or whole big floor of nine-squares beam steel concrete, whole big floor of prefabricated on the spot this piece (hereinafter to be referred as " big floor ") (concrete is mixed early strength admixture) on the terrace in each room just during construction, but the appearance and size of big floor should all be dwindled 2～4cm than each limit of the dead size of skin within the walls in this room, so that this big floor can directly rise to the design height of this floor plate in the future along the skin tag within the walls in room.Concrete casting at big floor is over, carry out surperficial press polish after, immediately at the surface layer guard shield of Ban Mianpu one deck tool-type, can be fiberboard, veneer, plastic plate, cardboard, straw bag or powder fine sand.Be dismountable limit mould after concrete final set, carry out concrete curing.In big floorslab concrete preserving period, carry out the wall construction of this layer building.After the concrete curing of big floor reaches intensity (about 3～4 days), just can utilize four corners of this body of wall to make fulcrum, lay special-purpose tripod, hang manual or electric block or jack, the big floor of vertical-lift reaches design height, after the correction levelling, immediately at the Si Jiaochu of wall, lay four joists of striding the corner big floor is held temporarily, just can shift lifting means then, carry out the lifting installation work of other each big floor in room equally.(if large-scale hanging device is arranged, can certainly promote with it big floor is installed).
After every big floor is interim in place, should after on the limit rib around the big floor, grow the permanent fulcrum that stretches within the walls by designing requirement immediately, make big floor load on the wall on four limits.When the big floor in each room of this one deck all install be over after, again adjacent each plate (promptly on Si Zhou load bearing wall) in the plate seam is linked with reinforcing bar, pour into concrete, make the whole big floor of this one deck finally all be unified into an integral body mutually, work as cast-in-place whole floor.
Equally, make terrace with the whole floor of this whole layer again, repeat above-mentioned operation, just can carry out the construction of last layer building again,, highrise building many up to this all completes.
Key technology of the present invention is the production method of big floor, grow the method that can unify reliably between the method for fulcrum and the big floor after on the big floor.
The pattern of big floor can be unitary solid flat board, the staple shaft word Liangping plate of band puigging and the flat board of Ming Lu nine-squares beam, and the surrounding rib of plate is the groove shape.Each nine-squares beam and rib intersection, limit all have the embedded iron parts (being actually Stew anchor slab of reinforcing bar) that links with steel bar stress so that after big floor is installed, from then on grow the fulcrum that stretches within the walls on the built-in fitting.For preventing the frame template mould that expands when the placing of concrete, take the template of two corresponding sides is held mutually by the arrangement of reinforcement of nine-squares beam, template is fixed by the spacing segmentation of nine-squares beam, reduced the size of template, it is the anchoring piece of reinforcing bar that the ironware of this drawknot template can be designed to, and is again to grow after future to stretch to the embedded iron parts of fulcrum within the walls.After big floor is installed,, just formed the steel bar stress that makes between the big floor of each piece is interconnected at whole steel mesh reinforcement together mutually at both direction form if welded together mutually again these fulcrums that stretch within the walls.
After the big floor of each piece is installed, for after finally being unified into an integral body, can there be reinforcing bar to bear negative moment of backing plate, can reserve an end at each edges of boards rib groove and float over fine steel rib on the groove concrete surface, treat big floor installation in position after, this reinforcing bar is removed one by one directly again, stretch in the plate seam, behind the plate seam placing of concrete, just the big floor of each dispersion originally has been unified into integral body, makes the big floor of whole layer all be two-way continuous slab work as cast-in-place whole floor.The groove on plate four limits is that these cast-in-place concrete can be bitten each plate mutually for after plate seam has watered concrete, the anti-shear ability when increasing big floor and bearing vertical load and the reliability of increase supported along four sides.
One of feature of the present invention is: floor appearance and size is all lacked about 2～4cm than each limit of endothelium clear distance of supporting the wall of this floor all around when making, so that guarantee floor can around prefabricated production in the wall frame scope, can promote installation on the spot then, reach and do not take other production stacking place, the purpose that member does not transport.Floor is not by on the wall of traditional way around directly being bearing in during installation, but the fulcrum that grows after will leaning on the rib of floor surrounding could support on the wall, can accomplish to make floor be supported along four sides bidirectional stress, the rigidity of increase floor.And guarantee not have under the floor live load effect over there the danger of slump.
Two of feature of the present invention is: when producing this big floor, the terrace that at every turn all is following one deck is made bed die, do not need to prop up in addition bed die, saved the operation of a large amount of production moulds and these moulds of dismounting, and can accomplish that it all is flat making the upper and lower surface of the floor of producing, upper surface does not need after the installation to plaster in addition with a press polish moulding of cement paste, simplify production process, saved material.
Three of feature of the present invention is: the lifting of these whole big floor is installed, can be without crane, but four angles that utilize this layer body of wall puzzled are installed the A-frame that promotes big floors and use, are hung up manually or electric block, big floor is risen to design height, (or four jiaos of big floors of usefulness jack jacking under plate are to design height), so though the big floor weight of this integral body is very big, but promote to install convenient on the contrary, simple, safe, do not need to use large-scale erection equipment, also can construct.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 be among the present invention by the size in each room in the building, a monoblock of design is the vertical view of the big floor of steel concrete of the solid or nine-squares beam of supported along four sides.
Fig. 2 is the A-A section when big floor is solid slab among Fig. 1.
Fig. 3 is the A-A section when big floor is staple shaft word beam slab among Fig. 1.
Fig. 4 is when the A-A section of big floor when being bright dew nine-squares beam plate among Fig. 1.
Fig. 5 is among Fig. 1
The arrangement of reinforcement full-page proof of node, wherein 1 is Stew anchor slab of reinforcing bar; 2 is nuts that are welded on the anchor slab 1, and this nut communicates with boring on the anchor slab 1.3, the 4th, there is the reinforcing bar of Stew anchor at two ends.
Fig. 6 is the B-B section of Fig. 5.
Fig. 7 is Stew anchor slab 1 and the structure full-page proof that connects nut 2.
Fig. 8 is the E-E section of Fig. 7.
Fig. 9 is the vertical view of big floor slab formerecting, arrangement of reinforcement.Wherein 5 is outer frame templates.3, the 4th, there is the reinforcing bar of Stew anchor at two ends.The 1st, the Stew of a reinforcing bar anchor slab.The 6th, nut bolt (using during fixed form).
Figure 10 is a node among Fig. 9
Full-page proof.
Figure 11 is the C-C section of Figure 10.
Figure 12 is the plan view signal of building.Wherein 10 is plan-positions of big floor.
Figure 13 is the phase I of the D-D section of Figure 12.Whole big floor produced in expression on the spot on the terrace of bottom.
Figure 14 is the second stage of the D-D section of Figure 12.Be illustrated in the construction of having finished this layer body of wall in the plate seam of producing the big floor that is over.
Figure 15 is the phase III of the D-D section of Figure 12.Expression has promoted and has promoted the schematic diagram of whole big floor.
Figure 16 is the quadravalence section of the D-D section of Figure 12, and the big floor that expression will promote behind the penetration concrete, has formed the schematic diagram of a big floor of whole layer in the plate seam.
Figure 17 is the five-stage of the D-D section of Figure 12, and expression is made terrace with the big floor of new floor, carries out the construction (as the operation that repeats Figure 13) of whole big floor of the second layer.
Figure 18 is the 6th stage of the D-D section of Figure 12, is illustrated in the construction (as the operation that repeats Figure 14) of finishing second layer body of wall between the plate seam of producing whole the big floor that is over.
Other operation is so analogized, and repeats, and builds up until whole many, high-rise building.
Figure 19 utilizes the corner that has puzzled that the vertical view of the triangular supports that promotes whole big floor is installed.
Figure 20 is the lateral view of Figure 19.Wherein 10 is whole big floors.The 7th, A-frame.The 8th, manual or electric hoist cucurbit.
Figure 21 be whole big floor promote reach design height after, the schematic diagram of the permanent fulcrum of being held by the interim joist in four corners and growing after on the rib of surrounding.The 9th, stride the interim joist in corner.The 10th, whole big floor of band nine-squares beam.The 11st, the permanent fulcrum that grows after on the rib of surrounding.
Figure 22 be joist 9 that whole big floor 10 striden the corner hold temporarily tiltedly go up a jiao of phantom drawing.
Figure 23 be whole big floor in place on the wall after, around the limit rib on growing the schematic diagram that stretches to permanent fulcrum 11 within the walls after (with the nine-squares beam confluce), and fulcrum that will adjacent each plate unify and in plate stitches the schematic diagram of placing of concrete.Wherein 11 grow the permanent fulcrum that stretches within the walls after being.Can form with the member of bolt by one section angle steel or other.The 12nd, interconnect with the nut 2 that is embedded in the concrete, thereby will stretch within the walls permanent fulcrum 11 and Stew anchor slab 1 of reinforcing bar, tighten the bolt that is fixed together mutually.The 13rd, the connecting piece that 11 of adjacent big floor is bound up (being welded reinforcement herein).The 14th, the floating in advance fine steel rib that is embedded in limit rib concrete surface, treat that big floor is installed after, remove straight more one by one.As shown in phantom in Figure 24, water then and be filled in the concrete, and bear negative moment of backing plate so that each adjacent big floor is coupled to an integral body.
Figure 24 is the floor map of Figure 23.Back pouring concrete can be elongated, also can be only a section of junction.
Its concrete construction technology is:
One, after the foundation construction of building was intact, then the terrace with bottom performed, and the body of wall line each room is put on terrace.As shown in figure 12.
Two, on the terrace in each room, brush interleaving agent, formwork then, and by 1 and arrangement of reinforcement 3,4 template 5 of two corresponding sides is held mutually.Prepare to produce whole big floor, the template of big floor and arrangement of reinforcement are as shown in Figure 9.
Three, press formwork or lay puigging in the position lay of nine-squares beam in the template of big floor, placing of concrete (mixing early strength admixture) shakes flat troweling then.
Four, after the concrete final set of big floor, plate face upper berth one deck guard shield (can be fiberboard, or hard plastic board etc.).
Five, after the concrete curing intensity of big floor reaches more than the 100#, turn on the outer edge mould 5 that bolt 6 is removed big floor, stay and produce the big floor 10 of having got well and carry out health, as shown in figure 13.
Six, slit place between the plate of each big floor carries out building wall (or installation of wallboard) by the body of wall position of unwrapping wire in advance.Reach the design height of this layer body of wall.As shown in figure 14.
Seven, reach 80% when above of designing requirement in the intensity of big floorslab concrete, the installation of big floor is carried out in preparation.
Eight, place, four corners A-frame is installed at each above the room body of wall, is hung up the lifting cucurbit big floor is promoted installation.As Figure 15, shown in Figure 19,20.
Nine, after big floor rises to a levelling, big floor 10 is held with joist 9 temporarily by the place in four corners, tripod 7 can be removed, and transfers to other place and uses.Shown in Figure 21,22.
Ten, after big floor is interim in place, immediately on the surrounding rib of big floor with the each point of nine-squares beam confluce with bolt 12 with after grow each fulcrum 11 and 1,2 connections of stretching within the walls and fix, make big floor become the supported along four sides state, shown in Figure 21,23,24.
11, below big floor, pull down the surface layer guard shield of interior formwork and upper face, prepare to reuse.
12, all behind the installation in position, carry out the processing that connects between plate at whole floors greatly of whole layer.
1, the fulcrum 11 usefulness connecting pieces 13 with adjacent big floor be bound up (can be welding).
2, remove directly reserving the fine steel rib 14 that floats over concrete surface on the rib of big floor surrounding, and between plate, press other reinforcing bar of designing requirement colligation in the slit.
3, placing of concrete in the slit between plate makes between each big floor to unify, and the big floor that forms a whole layer is shown in Figure 16,23,24.
13, make terrace with the big floor of this whole layer, repeat the construction that above-mentioned operation is carried out the second layer, shown in Figure 17,18.
14, continue to repeat that above-mentioned operation is many until this, highrise building all construction be over.
Claims (6)
1, a kind of design of many, high-rise building to withstand earthquake floors and job practices is characterized in that.
A, the size of pressing each room of building are designed to whole big floor than one in smaller each room of this room dead size to floor.
In B, when construction, be whole big floor of prefabricated on the spot this piece on the terrace in each room just.
C, carry out the construction of this layer body of wall then, reach the absolute altitude of this one deck.
D, utilize four corners of this layer body of wall that four leg-of-mutton heavy frames are installed,, rise to design height, be placed on the interim joist along the skin within the walls in this room with prefabricated whole the big floor that is placed on this layer terrace.
E, after on the rib of big floor surrounding, grow fulcrum again, make big floor be supported along four sides and lay on the wall.
F, after whole the big floor in each room of this layer all installs, the connection that the plate of each whole adjacent big floor seam is carried out reinforcing bar is handled again, and placing of concrete, makes each whole big floor of original dispersion finally be unified into an integral body.
2, the method for claim 1 is characterized in that this whole big floor can be solid flat board, bright dew nine-squares beam flat board, have a staple shaft word Liangping plate of puigging.All have groove on the rib of plate surrounding.
3, whole big floor as claimed in claim 2, when it is characterized in that big floor is produced, template is that spacing segmentation by nine-squares beam is fixed on by on each steel bar end anchor slab of handing over adopted arrangement of reinforcement.
4, whole big floor as claimed in claim 2, when it is characterized in that big floor is produced, the anchoring of reinforcing bar is to adopt Stew head on reinforcing bar, carries out anchoring with anchor slab.The inboard of this anchor slab centre-drilling hole all is fixed with a nut, and big floor is used for fixing template when producing and uses; The permanent fulcrum that grows after being used for fixing after big floor is installed uses.
5, whole big floor as claimed in claim 2, it is characterized in that after big floor is installed, the permanent fulcrum that grows after on the rib of big floor surrounding make big floor be supported along four sides around wall on, the longer permanent fulcrum in these backs of adjacent big floor can be connected with each other, and makes the reinforcing bar of the big floor of whole floor can both be unified into an integral body at both direction.
6, the method for claim 1, the installation that it is characterized in that each whole big floor are to utilize four jiaos of this layer body of wall, and the triangle bearing bracket is installed in the above, hang that lifting means installs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103473 CN1039505C (en) | 1991-05-24 | 1991-05-24 | Floorslab design and its construction method of anti-seismic building with lifting form step by step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103473 CN1039505C (en) | 1991-05-24 | 1991-05-24 | Floorslab design and its construction method of anti-seismic building with lifting form step by step |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1057876A true CN1057876A (en) | 1992-01-15 |
| CN1039505C CN1039505C (en) | 1998-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103473 Expired - Fee Related CN1039505C (en) | 1991-05-24 | 1991-05-24 | Floorslab design and its construction method of anti-seismic building with lifting form step by step |
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| Country | Link |
|---|---|
| CN (1) | CN1039505C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619595B (en) * | 2008-07-03 | 2011-06-08 | 林文焕 | Method for casting hollow form by plastic shells and adhesive mortar |
| CN102505640A (en) * | 2011-12-05 | 2012-06-20 | 中国建筑第六工程局有限公司 | Method for constructing pier column |
| CN108204067A (en) * | 2018-03-13 | 2018-06-26 | 安徽虎邦建设有限公司 | A kind of compartment floor for sophisticated manufacturing plants room |
| CN114519228A (en) * | 2022-02-24 | 2022-05-20 | 四川省建筑设计研究院有限公司 | Method for rapidly calculating anti-overturning stress of large-height-to-width-ratio double-tower-structure skirt house floor slab |
-
1991
- 1991-05-24 CN CN 91103473 patent/CN1039505C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619595B (en) * | 2008-07-03 | 2011-06-08 | 林文焕 | Method for casting hollow form by plastic shells and adhesive mortar |
| CN102505640A (en) * | 2011-12-05 | 2012-06-20 | 中国建筑第六工程局有限公司 | Method for constructing pier column |
| CN108204067A (en) * | 2018-03-13 | 2018-06-26 | 安徽虎邦建设有限公司 | A kind of compartment floor for sophisticated manufacturing plants room |
| CN114519228A (en) * | 2022-02-24 | 2022-05-20 | 四川省建筑设计研究院有限公司 | Method for rapidly calculating anti-overturning stress of large-height-to-width-ratio double-tower-structure skirt house floor slab |
| CN114519228B (en) * | 2022-02-24 | 2023-09-22 | 四川省建筑设计研究院有限公司 | Anti-overturning stress rapid calculation method for skirt house floor slab with large height-width ratio double-tower structure |
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| Publication number | Publication date |
|---|---|
| CN1039505C (en) | 1998-08-12 |
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