CN1039505C - Floorslab design and its construction method of anti-seismic building with lifting form step by step - Google Patents
Floorslab design and its construction method of anti-seismic building with lifting form step by step Download PDFInfo
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- CN1039505C CN1039505C CN 91103473 CN91103473A CN1039505C CN 1039505 C CN1039505 C CN 1039505C CN 91103473 CN91103473 CN 91103473 CN 91103473 A CN91103473 A CN 91103473A CN 1039505 C CN1039505 C CN 1039505C
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Abstract
The present invention belongs to a method for designing and constructing floors of a shock resistant building in the construction engineering. The floor is designed into one big floor of each whole room, and the size of the floor is less smaller than the exact size of the room according to the size of each room of the multi-story and high-rise building. The big floor is prefabricated on the terrace of each room on the spot during the construction, and then the wall body is constructed. When the elevation of the story is reached, four corners of the wall body are taken as a heavy frame, the prefabricated big floor is lifted to a design height along an inner covering of the room wall and is arranged on a temporary bolster. Fulcrums are arranged after the circumference of the big floor to make the big floor arranged on the wall with support on the four sides. After the big floors of the whole rooms of all rooms on the story are arranged, seams of the adjacent big floors are connected by reinforcing steel and processed by cast-in-place concrete to make the dispersed buildings combined into a whole finally.
Description
The invention belongs to the job practices of many, the high-rise building 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 and job practices have three kinds:
One, precast floor slab.Being 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 low.But because it is prefabricated, speed of application is very fast, is therefore adopted in a large number.
Two, cast-in-place whole floor.The good integrity of this floor, 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.
Three, whole lift slab.Be the technology of boundary between precast floor slab and cast-in-place whole floor, be exactly the construction earlier of the pillar of building, at the bottom of this building, the whole floor plate number of plies on demand of this building all is enclosed within the production of pillar superimposed layer together then, treat that concrete reaches intensity after, make fulcrum with each pillar again, from top to bottom hierarchical synchronization promotes these whole floor plates, reach design elevation after, pouring supporting plate cap concrete on pillar again, floor is held, formed frame construction.Also have because the synchronous lifting weight of multilayer is excessive, and use layering is prefabricated, successively promote (seeing the WO88/08903A document) instead, but they all must be to make fulcrum with pillar, promote synchronously to realize.And promote not only equipment complexity synchronously, also be easy to cause whole floor cracking.In addition, pillar and floor do not have fixedly in lifting process, and the drift of pillar is very big, and be extremely unstable, causes the skew of whole building easily, even the danger of decaying is arranged.After around the big floor, grow fulcrum, supporting after whole the big floor in this each room of one deck all is respectively installed to the position, pours into concrete on the wall again in each adjacent plate seam, 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 constructure had both had cast-in-place whole floor good integrity, the strong advantage of antidetonation evil ability, a large amount of difficulties of using template and these templates of repeated disassembled and assembled 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 was installed, within the walls fulcrum is welded together mutually more just to have 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 these are stretched into.
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 directly to be bearing on the wall all around by traditional way 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, on entirely, 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 is the vertical view of big floor; Shown in the figure is a big floor of nine-squares beam shape.
Fig. 2 is the A-A section of Fig. 1, the section when big floor is solid slab;
Fig. 3 is the A-A section of Fig. 1, the section when big floor is staple shaft word beam slab;
Fig. 4 is the A-A section of Fig. 1, and big floor is the section when revealing bright nine-squares beam plate;
Fig. 5 is the A node arrangement of reinforcement drawing among Fig. 1;
Fig. 6 is the B-B section of Fig. 5;
Fig. 7 is reinforcing bar pier nose anchor slab 1 and the drawing that is welded in the nut 2 on the reinforcing bar anchor slab 1.
Fig. 8 is the E-E section of Fig. 7;
Vertical view when Fig. 9 is formwork, the arrangement of reinforcement of big floor;
Figure 10 is the B node full-page proof of Fig. 9;
Figure 11 is the C-C section of Figure 10;
Figure 12 is the top plan view of building; 10 is plan-positions of big floor among the figure;
Figure 13 is the phase I of the D-D section of Figure 12;
Figure 14 is the second stage of the D-D section of Figure 12;
Figure 15 is the phase III of the D-D section of Figure 12;
Figure 16 is the quadravalence section of the D-D section of Figure 12;
Figure 17 is the five-stage of the D-D section of Figure 12;
Figure 18 is the 6th stage of the D-D section of Figure 12;
The vertical view of the tripod that Figure 19 uses for the big floor of installing at corner place of lifting;
Figure 20 is the lateral view of Figure 19;
Figure 21 for whole greatly floor be raised vertical view after putting in place;
Figure 22 holds the oblique perspective figure at a plate angle for the joist 9 that whole big floor striden the corner temporarily;
Figure 23 is the sectional drawing of plate seam structure;
Figure 24 is the plan view of plate seam structure; Wherein:
Shown in Figure 1 is a big floor that reveals bright nine-squares beam shape, but also big floor solid or dark nine-squares beam shape, so the D-D sectional drawing of Fig. 2, Fig. 3, Fig. 1 shown in Figure 4 is respectively solid big floor, the dark big floor of nine-squares beam shape, reveals the section shape figure of the big floor of bright nine-squares beam shape.
Among Fig. 5, the 1st, the pier nose anchor slab of reinforcing bar; The 2nd, be welded in the nut on the pier nose anchor slab 1; 3, the 4th, there is pier nose at two ends and with the reinforcing bar (or steel wire) of pier nose anchor on anchor slab 1.
Fig. 6 is the B-B section of Fig. 5, has specifically shown the position of arrangement of reinforcement 3,4;
Fig. 7, Fig. 8 have then shown this reinforcing bar pier nose anchor slab 1 and have been welded in the structure of the nut 2 on the anchor slab 1 that this nut 2 is used for fixing exterior sheathing in detail when big floor is produced; When big floor hoisted in position, be used for the erection support parts.
Among Fig. 9, the 5th, the outer frame template of the big floor of production; 6 is bolts that connect mutually with nut 2, is used for making reinforcing bar anchor slab 1 and template 5 to fix.
The demonstration that Figure 10, Figure 11 are then detailed reinforcing bar anchor slab 1 connection situation with template 5.
Figure 12 is the big floor position in the plane in one in room of expression, is in advance the position of room body of wall all to be reserved in plate seam place between the big floor 10 of each piece.
Section shown in Figure 13 is the situation of big floor 10 when producing on the terrace of building lowermost layer.
Section shown in Figure 14 is the situation of masonry panel during the plate between big floor 10 stitches.
Shown in Figure 15 is body of wall and the fulcrum that utilizes this layer, promotes the situation of big floor 10 and the situation that big floor is installed.
Shown in Figure 16 be with each big floor of one deck all installation in position and interconnect after, in the plate seam, water concrete again, form the situation of the whole floor of this layer.
Shown in Figure 17 is to make terrace with the whole floor of new floor, carries out the construction of whole the big floor in each room of the second layer, as the operation that repeats Figure 13.
Shown in Figure 180 is the construction of finishing second layer body of wall in the plate seam of producing between each whole the big floor that is over, as the operation that repeats Figure 14.
Figure 19, Figure 20 install A-frame that promotes whole big floor and the situation that promotes big floor with hoist crane at the place, corner that has puzzled.Among the figure 7 is A-frames, the 8th, promote cucurbit, and the 10th, big floor.
Figure 21 is after whole big floor is thus lifted to design elevation, earlier at big floor four jiaos with interim joist 9 with big floor restitope, and then the reinforcing bar anchor slab place of each reservation on the limit rib around the big floor installs support part 11, makes big floor be the supported along four sides state and places on the wall.
Figure 22 is the upward phantom drawing when with joist 9 big floor being held a bight temporarily.
Figure 23, Figure 24 are the section and the plan views of plate seam structure.Among the figure 11 is one section angle steel as support part, tightens mutually with nut 2 by bolt 12, and support part 11 is connect mutually with reinforcing bar anchor slab 1, forms the bearing of big floor, and load is on body of wall.Each support part 11 usefulness connector 13 that adjacent big floor is mutually corresponding are welded to each other together, make also UNICOM mutually of arrangement of reinforcement 3,4 that each big floor originally separates alone.The 14th, the floating in advance fine steel rib that is embedded on the rib of surrounding after the every connection work in adjacent big floor plate seam is finished, is removed directly 14 again, waters plate seam concrete then, makes the floor after unifying also can bear hogging moment at body of wall bearing place.
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 reinforcing bar anchor slab 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 floor and arrangement of reinforcement are as shown in Figure 9 greatly.
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, reaches 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 position and 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 at the former screw place that fixes housing template 5, with bolt 12 that support part 11 is fixing with nut 2 connections on the reinforcing bar anchor slab 1, make big floor become the supported along four sides state support on body of wall all around.Shown in Figure 21,23,24.
11, the surface layer guard shield of pulling down interior formwork and upper face below big floor is prepared 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 support part 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 in the plate break joint, press other reinforcing bar of designing requirement colligation;
3, placing of concrete in the plate seam makes between each big floor to unify, and forms the whole floor of a whole layer.Shown in Figure 16,23,24;
13, make terrace with the whole 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 (4)
1, a kind of job practices of many, high-rise building floor, its step comprises:
A, floor many, high-rise building be divided into one in a room can precast block whole big floor (10), just on the terrace in this room, produce;
B, the appearance and size of whole the big floor (10) of energy precast block is lacked 2～4 centimetres than the every limit of inner surface dead size of body of wall around this big floor of supporting, make whole big floor (10) rise to design height along body of wall, come erection support parts (11) by the reinforcing bar anchor slab of on this big floor surrounding rib, reserving (1) again, just make big floor (10) be bearing in around on the body of wall;
C, whole the big floor (10) in each room of each layer all precast block, piecemeal promote, respectively the erection support parts carry to the body of wall separately after, each corresponding support part (11) on the adjacent big floor is connected with each other with connecting piece (13), make between whole the big floor of each piece (10) originally separately independently arrangement of reinforcement (3), (4), in the also all mutual UNICOM of both direction together, formed the whole steel mesh reinforcement of whole layer, in the plate seam, behind the placing of concrete, make the whole floor of whole layer.
2, method according to claim 1, it is characterized in that in steps A, producing all cheek boards (5) of whole the big floor (10) of precast block, be by being welded in the nut (2) and corresponding preformed hole on template (5) on the reinforcing bar anchor slab (1), be bound up with bolt (6), allow the interior arrangement of reinforcement (3) of plate, (4) template (5) that two ends are corresponding mutually hold, template (5) is fixed.
3, method according to claim 1, it is characterized in that the support part (11) that install the back in step B, be by being welded in the nut (2) on the reinforcing bar anchor slab (1), being bound up with bolt (12) and reinforcing bar anchor slab (1), another edge of a wing of this angle steel is supported to form on the body of wall as the angle steel of support part (11).
4, method according to claim 1, the lifting that it is characterized in that whole the big floor in each room in step C is four angles that utilize this room body of wall, a supporting is being installed separately on the wall or the support on the beam, post on each angle, hang up manually or electric block, or jack promotes.
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 CN1057876A (en) | 1992-01-15 |
| CN1039505C true 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) |
Families Citing this family (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 |
| CN102505640B (en) * | 2011-12-05 | 2013-09-25 | 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 |
| 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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1991
- 1991-05-24 CN CN 91103473 patent/CN1039505C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1057876A (en) | 1992-01-15 |
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