CN1912305A - Precast stairway system, unit structure thereof, and method of constructing stairway system using the same - Google Patents
Precast stairway system, unit structure thereof, and method of constructing stairway system using the same Download PDFInfo
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- CN1912305A CN1912305A CNA2006100988948A CN200610098894A CN1912305A CN 1912305 A CN1912305 A CN 1912305A CN A2006100988948 A CNA2006100988948 A CN A2006100988948A CN 200610098894 A CN200610098894 A CN 200610098894A CN 1912305 A CN1912305 A CN 1912305A
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- stair
- pedal
- precast
- block construction
- landing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/116—Treads of stone, concrete or like material or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Disclosed are a stair unit structure, a precast stairway system and a method for constructing such a precast stairway system using one or more stair unit structures. The stair unit structure is formed in a one-piece structure by at least one stair with a riser and a tread. The precast stairway system includes a stairway formed by connecting stair unit structures one after another and two inclined stringers, and has a high or ultra-high strength, but is still excellent in endurance and load carrying capacity due to its relatively superior flexible behavior as compared with an existing high strength concrete. The precast stairway system also exhibits excellent water-tightness and excellent noise-reducing performance as to walking load. In the method for constructing a stairway, one or both stringers may serve as molds in a position where they can be fixed within a wall body to be constructed, thereby forming a floor landing, and an intermediate landing integrally and simultaneously with the wall body. Accordingly, not only the precast stairway can serve as a working passageway, but also the wall body can support the load of one or both inclined stringers in the course of construction, as a result of which labor cost curtailment, construction cost curtailment owing to short construction period, manufacture/transport cost curtailment, and the shortening of construction time can be promoted.
Description
Technical field
The present invention relates to a kind of precast stairway system and prefabricated step block construction thereof, and relate to a kind of method of using described prefabricated step block construction construction precast stairway system.Particularly, (its strength range is 60 to 200MPa to the present invention relates to the fibre reinforced cement composite material precast stairway system of high strength or superhigh intensity, and it has outstanding relatively flexible nature, and have good watertightness and a durability), with the prefabricated step block construction that is used for assembling this precast stairway system, and build precast stairway system cost-effectively, guarantee that simultaneously described stair system has the satisfactory texture method for quality.
Background technology
Usually, building is the vertical portable cord (moving line) in the high-rise building especially, is connected by the Lift ﹠ Stairs system is installed.Yet, when building this stair, condition of work is arduous and complicated, this is to be connected with following flaggy (slab) because the step (stair) of stair will be used flaggy in narrow staircase space, and this stair have complicated shape, comprise the vertical bank shape that is different from conventional components (for example flaggy and vertical body of wall).
At present, build to live or commercial two-purpose dwelling house, or when being used for the low layer of commerce or shopping centre or high-rise building, normally used method is to make the cement stair of monoblock type.
Yet, when using steel concrete to build this stair, the several problems that exist are, must carry out difficulty and processing consuming time, for example the distribution of the mould of assembly inclination stair flaggy, reinforcement bar and assembling are used to make the mould of the step pedal (tread) of each step, and also will work such as repair and whitewash to the out-of-flatness surface of broadstep after these are handled.In addition, the business efficiency and the production efficiency of building this stair system all are low, because it is labour-intensive and needs long construction period.
In order to address the above problem, in the prior art, people have proposed a kind of reinforced concrete prefabricated stair system, the method of its construction may further comprise the steps: ground landing and middle landing are fixed to body of wall, traditional prefabricated reinforced concrete stair are placed on ground landing and the middle landing, and then use mortar that stair are bonded to ground landing and middle landing.Yet, as transportable precast stair, the application limitation of this conventional steel reinforced concrete precast stairway system is, it is compared with traditional cast-in-place concrete staircase, does not reduce weight and volume owing to the cause of its opposed side edges (right-angled triangle by continuous connection forms).In addition, the problem that this traditional precast stair also has is, because the length from the ground landing to middle landing is continuous, perhaps the length from middle landing to the ground landing is continuous, therefore this precast stair is to bother very much with inconvenient when this precast stair being transported and be installed to the appropriate location not only heavily but also greatly.In addition, in this way, people have also proposed by following process precast stair to be installed, may further comprise the steps: build staircase, one or more middle landings and one or more ground landing are installed, one or more precast staiies are placed on middle landing and the ground landing, and use fixedly precast stair of mortar.Yet, in the middle of practice, this process can not be used well in the building site, this is because in the middle of the process of building, this precast stair promptly can not provide working space, portable cord can not be provided, and reason is that pedal and body of wall are not to build simultaneously, therefore has multiple inconvenience when building.
Therefore, in the prior art, the method that people have also proposed other solves the problems referred to above.For example, the U.S. the 5th, 203 discloses a kind of precast stair in No. 128 patents, wherein use bolt single prefabricated step (wherein each partly is made of the riser part and the pedal of approximate vertical) to be fixed to the stair carriage (that is, of staircase step section) of pair of parallel.Yet the 5th, 203, No. 128 patent does not provide the prefabricated step block construction that is made of the interconnective step of a plurality of integral body, because do not use the fibre reinforced cement composite material when building this precast stair.Therefore, the stubborn problem of existence is to need to use fastening devices (for example, screw) that single step is fixed, thereby step is connected with each other.In addition, each step has rib reinforcing its intensity at the top of its front side, and this rib preceding side-prominent from step.Therefore, the people of walking may be injured because of being tripped by rib.
Building the problem that above-mentioned traditional reinforced concrete stairs runs in order to solve.Proposed in the prior art to use and made good iron frame stair syndeton in advance.In this method, be attached on the fabric structure by the iron frame stair of making in conjunction with the iron frame unit.This method is in performances such as the construction of stair, stability, quality, and reduces the construction period aspect and have good effect.Yet because need weld each pedal unit when making stair, therefore this method will produce serious problem in the initial stair fabrication stage, for example, and high labor cost and because welding temperature makes stair be out of shape.In addition, because the cause of metal material attribute of the iron frame stair of completion, this stair are especially not fire-resistant, and when one or more people's stair activity, because the walking heavy burden that is applied on the stair produces serious noise.In addition, because the sheet metal of stair approaches, therefore reduced second moment of area, thereby made stair in use owing to weight produces metaboly.
In order to solve the problems referred to above that the iron frame stair exist, people have proposed to be used to provide the another kind of method of improved iron frame stair, wherein, thereby the noise and the distortion of bearing a heavy burden and to cause owing to walking lowered in two overlapping combinations of pedal unit, and by screw with pedal unit with stair carriage (stringer) thus being connected to have improved makes and the convenience of installation and the function of having improved this stair.Yet when considering manufacturing cost, this stair are not better than traditional concrete staircase, in addition, can anticipate, because the rise of the prices of raw and semifnished materials will make the manufacturing cost of iron frame stair go up continuously in very long a period of time.
As mentioned above, building concrete staircase in concrete structure is labour-intensive and arduous work, and needs accuracy and long time cycle.Yet, up to now, also do not proposed to satisfy the appropriate technology that business efficiency, practicality and mass property require.
Summary of the invention
Therefore, the objective of the invention is to solve above-mentioned problems of the prior art, and and then a kind of fibre reinforced cement composite material precast stairway system proposed, this system has 60MPa to 200MPa high strength or superhigh intensity, and compare with existing strong concrete structure and to have pliability preferably, thereby have outstanding durability and top load supporting capacity, this system also has the characteristic of good watertightness and noise-decreasing (noise that is produced by the walking load that applies on the step).
Second purpose of the present invention provides a kind of fibre reinforced cement composite material precast stairway system, this system has outstanding construction characteristic, by simply it being arranged on preposition, just can it be installed and need not to install at the construction field (site) support member and form the mould of making stair self, thereby lowered cycle and the labor cost of making stair, saved construction cost thus and shortened the construction work cycle.
The 3rd purpose of the present invention provides a kind of fibre reinforced cement composite material precast stairway system of making in advance.
The 4th purpose of the present invention provides a kind of fibre reinforced cement composite material precast stairway system of making in advance that can reduce manufacturing and cost of transportation.
The 5th purpose of the present invention provides a kind of block construction, and it can be used to make cost-effectively according to any one prefabricated fibre reinforced cement composite material stair in this aspect first to the 4th purpose.
The 6th purpose of the present invention provides a kind of method of making cost-effectively according to the prefabricated fibre reinforced cement composite material stair of any one in this aspect first to the 4th purpose.
According to a first aspect of the present invention that is used to realize above-mentioned first to the 4th purpose, a kind of like this precast stairway system is provided, can comprise: by the stair that one by one a plurality of step block constructions are joined together to form, each step block construction comprises at least one step, and described step has at least one pedal and at least one riser that forms as one each other; And the stair carriage that combines of a pair of and described stair, wherein, each step block construction is a high strength fibre refinforced cement composite bodies, its mixture by cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water forms, its mixed proportion is 1: 0.9～1.7: 0.1～0.3: 0.02～0.1: 0.01～0.06: 0.03～0.2: 0.2～0.45, and has the back solidification intensity of 60MPa to 100MPa.
According to a second aspect of the present invention that is used to realize above-mentioned first to the 4th purpose, a kind of like this precast stairway system is provided, wherein, each step block construction is the ultrahigh-strength fiber-reinforced cement composite bodies, and form by the mixture of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, the mixed proportion of described mixture is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and has scope at the back solidification intensity of 100MPa to 200MPa.
According to a third aspect of the present invention that is used to realize above-mentioned first to the 4th purpose, a kind of precast stairway system is provided, wherein, at least one stair carriage of above-mentioned aspect is formed by metal material, or is made of the fibre reinforced cement composite material of above-mentioned high strength or superhigh intensity.
According to a fourth aspect of the present invention that is used to realize above-mentioned first to the 4th purpose, a kind of like this precast stairway system is provided, each pedal of each step block construction in aspect above-mentioned embeds at least one reinforcing strip, thereby reinforce the load-carrying ability of the pedal in the step block construction, the opposite end of described reinforcing strip physically is connected with two stair carriages and by its support.
According to a fifth aspect of the present invention that is used to realize above-mentioned first to the 4th purpose, a kind of like this precast stairway system is provided, it further comprises link, each link has and is used for first top, horizontal zone and the regional interconnective reinforcement feature of bottom level to the stair carriage of the third aspect, and having a plurality of reinforcing strip, described reinforcing strip vertically is connected to described reinforcement feature.
According to the another aspect of the present invention that is used to realize above-mentioned the 5th purpose, a kind of so prefabricated step block construction is provided, it can be by cement, fine aggregate, the filling material, the fine ceramic powder, water reducing agent, the mixture of metallic fiber and water forms, the mixed proportion of described mixture is 1: 0.8～1.7: 0.1～0.4: 0.02～0.3: 0.01～0.07: 0.03～0.4: 0.18～0.45, and have the back solidification intensity of 100MPa to 200MPa, and described step unit comprises at least one step, described step has at least one pedal and at least one riser that forms as one each other, wherein, each step has the insertion ridge that forms at the one end, and the insertion groove of the elongation that forms at its other end, with this a plurality of steps are coupled together one by one to form stair.
According to the another aspect of the present invention that is used to realize above-mentioned the 6th purpose, a kind of like this method of building precast stairway system is provided, may further comprise the steps: the prefabricated step block construction of a plurality of fibre reinforced cement composite materials described in assembling as the above-mentioned aspect, and use screw that the step block construction is installed to a pair of stair carriage, thereby form precast stair; After forming precast stairway system or the while, respectively two links are fixed to the top and the bottom level zone of stair carriage, each link has reinforcement feature and a plurality of reinforcing strip, and reinforcing strip is connected with reinforcement feature is vertical; The landing beam is set on support member, and support member is positioned at the location that is formed with one or more ground landing and middle landing, and each landing beam is provided with at least one reinforcing strip; To have the precast stair that is fixedly coupled parts is arranged on the landing beam; Assembling is used to build the mould of ground landing, middle landing and body of wall by this way,, can embed and be fixed to the position of waiting the body of wall built at stair carriage that is, and one in the stair carriage can be used as mould; And concrete is injected into mould, thereby integrally form ground landing, middle landing and body of wall simultaneously.
Description of drawings
After carrying out the following detailed description with reference to corresponding accompanying drawing, above-mentioned and other purposes, feature and beneficial effect of the present invention will become apparent, wherein,
Fig. 1 is a exploded perspective view according to the precast stairway system of the preferred embodiment of the invention to Fig. 3, has omitted some parts therein;
Fig. 4 is the stereogram of demonstration according to the step block construction of the internal thread type of the preferred embodiment of the invention to Fig. 7;
Fig. 8 is the stereogram of demonstration according to the step block construction of the external screw thread type of the preferred embodiment of the invention to Figure 11;
Figure 12 is the exemplary respectively pedal of the step block construction that is used for the internal thread type and the schematic diagram of the pedal of the step block construction that is used for the external screw thread type of illustrating to Figure 13, wherein, the left half of each figure is the lateral view of corresponding pedal, and right half is a sectional top view;
Figure 14 is a schematic diagram, and it exemplarily shows internal stress and distributes bonded block and external carbuncle to distribute bonded block how to combine from inner surface and external surface according to the stair carriage of the precast stairway system of the preferred embodiment of the invention;
Figure 15 is the side cross-sectional view according to the stair carriage of the precast stairway system of the preferred embodiment of the invention;
Figure 16 is that the step block construction is connected to the schematic diagram according to the stair carriage of the preferred embodiment of the invention when being presented at assembling precast stairway system of the present invention to Figure 18;
Figure 19 shows the stair carriage stereogram with a plurality of pedal embedded grooves (it forms) on the inner surface of stair carriage;
Figure 20 is the stereogram of step block construction that can be applied to the stair carriage of Figure 19 to Figure 22;
Figure 23 is the schematic diagram that the creative method of building stair system is shown, and wherein the precast stair according to the preferred embodiment of the invention is placed in the landing beam, then builds ground landing and middle landing simultaneously;
Figure 24 is the diagrammatic side view of creative method that shows ground landing, middle landing and the body of wall of the embodiment be used for building simultaneously Figure 23;
Figure 25 is the sectional view that the line I-I along Figure 24 obtains; And
Figure 26 is the schematic diagram that is presented at the preferred embodiment of the landing beam that uses in the inventive method of building stair system.
The specific embodiment
Hereinafter, with reference to corresponding accompanying drawing several preferred embodiment of the present invention is described.In the following description and the drawings, represent same or analogous parts, thereby omit being repeated in this description same or similar parts with identical drawing reference numeral.
Fig. 1 is the exploded perspective view that shows according to fibre reinforced cement composite material precast stairway system 1,1a and the 1b preferred embodiment of the invention, high strength or superhigh intensity to Fig. 3, has omitted some parts therein.Because the basic structure of precast stairway system is consistent each other,, will be described them simultaneously therefore in order to describe facility.
Precast stairway system 1,1a or 1b comprise stair 10 and two lay respectively at stair 10 both sides inclination stair carriage 20 (selectively, concrete staircase base 20 that tilts and the iron stairs base 21 that tilts), and be used for the top of the side plate 20 that will tilt and the link 31 that the bottom is connected to ground landing (referring to the reference number 3 and 4 of Figure 23) or middle landing (referring to the reference number among Figure 23 2).Because this stair 10 are applied to the building site with prefabricated form,, are used to build the labor cost and the time cycle of this stair with reduction, thereby have saved construction cost so can simplify the complex process of building stair.In addition, because this stair system is by the assembling stair carriage (preferably, have the back solidification intensity of 100MPa to 200MPa) and pedal (having the back solidification intensity of 60MPa usually) to 200MPa realize, wherein stair carriage and pedal are formed by the concrete mix of high strength or superhigh intensity, so can preproduction go out to have the precast stairway system of the weight of being convenient to transport (using available coagulation soil in no case can obtain), or by simply these stair being placed suitable position to need not to install scaffold (support) and mfg. moulding die just can be installed this stair system.
According to the present invention, stair 10 and stair carriage 20 (supposing that stair carriage is not to be made of iron plate) the typically mixture by cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water form, its mixed proportion is 1: 0.9～1.7: 0.1～0.3: 0.02～0.1: 0.01～0.06: 0.03～0.2: 0.2～0.45, and have the back solidification intensity of 60MPa to 100MPa, be not higher than 7% back curing void content, usually in 3% to 7% scope.If necessary, the mixing ratio of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water can be 1: 0.8～1.5: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, back solidification intensity can be 100 to 200MPa, void content is solidified in the back can not be higher than 5%, and the typical case is in 3% to 5% scope.Preferably, stair 10 can be high-intensity fibre reinforced cement complexs, and it has the back solidification intensity of 60MPa to 100MPa, and stair carriage 20 can be the fibre reinforced cement complex of superhigh intensity, and it has the back solidification intensity of 100MPa to 200MPa.
Owing to comprised metallic fiber, therefore precast stairway system 1 of the present invention or 1a have flexibility, and this can not exist at traditional strong concrete stair system.In addition, because low void content, it also has good watertightness, and because its high strength that has or superhigh intensity, and have enough structural load supporting capacity and durability.In addition, precast stairway system 1 of the present invention or 1a can reduce the noise that the walking load causes well.
In above-mentioned blending constituent, fine aggregate comprises and is no less than 90% silica sand (SiO
2) expect that typically comprise 90% to 99.9% silica sand, wherein, the average grain diameter of silica sand is not more than 0.7mm, typically be 0.1 to 0.7mm.Yet the present invention is not limited thereto.
In above-mentioned blending constituent, adding charging and comprising and be no less than 97% silica sand (SiO
2) expect that typically comprise 97% to 99.9% silica sand, wherein, the average grain diameter of silica sand is not more than 20 μ m, typically is 3 to 20 μ m.Yet the present invention is not limited thereto.
In above-mentioned blending constituent, the fine ceramic powder is preferred but be not limited to select from silica flour, blast-furnace cinder, flyash, microlith powder and their combination, and wherein silica flour is preferred.
For the water reducing agent in the above-mentioned blending constituent, can use as being known in the art or any water reducing agent of available " very-high performance water reducing agent ".Wherein, for having the high strength fibre refinforced cement composite material of 60MPa to the back solidification intensity of 100MPa, water reducing agent allow cement composition therein the ratio of water and cement be 20% to 45% o'clock, have enough flowabilities, and for having the ultrahigh-strength fiber-reinforced cement composite material of 100MPa to the back solidification intensity of 200MPa, water reducing agent allow cement composition therein the ratio of water and cement be 18% to 30% o'clock, have enough flowabilities.Because the water reducing agent of above-mentioned various very-high performances can buy and be known in the art from each company, therefore omitted its further description.
In addition, in above-mentioned blending constituent, metallic fiber is preferred but be not limited to have the average length that is not higher than 30mm, typically be 0.3mm to 30mm, its average diameter is not more than 0.5mm, typically is 0.1mm to 0.5mm, its form factor is about 60 to 70, preferably is about 65.Can use the wire that has obdurability arbitrarily as metallic fiber and without any restriction, but preferably use steel wire usually as metallic fiber.Metallic fiber included reduced the fragility of traditional strong concrete, and make synthetic have flexible characteristic.
Describe once more according to high strength fibre refinforced cement composite material precast stairway system 1 of the present invention with reference to Fig. 1 below.
Among the embodiment that illustrates in the drawings, high strength fibre refinforced cement composite material precast stairway system 1 of the present invention comprises: stair 10, it is made of a plurality of pedals 11 and riser 12, riser 12 between two adjacent pedals 11, thereby make pedal 11 link together continuously by riser 12; Two metal stair carriages 21 (for example, the stair carriage that forms by iron); Two links 30, be used for the top of stair carriage 21 is connected with ground landing or middle landing (not shown) respectively with the bottom, wherein, although pedal 11 has the durability of opposing tension force separately owing to comprised metallic fiber, but (for example can also use internal thread 16 (opposite end of contiguous reinforcing strip 117 forms) with two reinforcing strip 117, the iron reinforced pole) is embedded into that (this will be described later in each pedal 11, as shown in figure 12), thereby guarantee to resist the strong endurance of tension force, screwed hole 14 is exposed to the opposite flank of each pedal 11, thereby make pin thread 53 to be inserted into screwed hole 14 from the external surface of iron stairs base 21, be installed in respectively in the screwed hole 14 thus.
Whether above-mentioned reinforcing strip 117 is arranged in each pedal, and how many reinforcing strip 117 are set in each pedal is not important for the present invention, but optionally.If be provided with reinforcing strip, two or three reinforcing strip are set typically.
Above-mentioned stair 10 comprise one or more prefabricated step block constructions 110,120,130 and 140, its each all have one or more steps (being preferably one to four step), described step forms as one each other, and each step has pedal 113 and riser 111.Step block construction 110,120,130 and 140 each all have built-in edge 112 an end, and has an embedded groove 12 of elongation in the other end, thereby make one or more prefabricated step block constructions 110,120,130 and 140 to assemble mutually, with formation precast stair 10, and therefore form precast stairway system 1 or 1a.
The thickness of each pedal 11 is not critical to the present invention, but optionally.Yet their thickness preferably is no more than 7cm, and more preferably is no more than 5cm, thereby reduces the weight of pedal 11.
Below with reference to Fig. 4-13 describe in further detail fit together mutually, to form the prefabricated step block construction of high strength fibre refinforced cement composite material of above-mentioned stair 10.
Each stair carriage 21 has top, horizontal zone 28, tilting zone 27 and bottom level zone 29 usually, and also comprise fastener hole 24, fastener hole 24 passes stair carriage 21 and forms, and corresponding with the position of screwed hole 115, wherein, internal thread 16 forms in screwed hole 115 respectively, the opposed end (referring to Figure 12) of its contiguous reinforcing strip 117 that embeds passes through to insert for example screw 53 of fastening devices with this, promptly, make screw 53 engage, and pedal 11 can be fixed to stair carriage with internal thread 16.
Next being described in the internal stress of using when interconnecting stair 10 and stair carriage 21 with reference to Figure 14 and Fig. 1 distributes bonded block 40 and external carbuncle to distribute bonded block 50.
Internal stress distributes bonded block 40 to may be used on the inner surface of stair carriage 21, when interconnecting with the pedal 11 that alleviates stair 10 and stair carriage 21, and the stress of around reinforcing strip 117, assembling.Each of internal stress distribution bonded block 40 all has passes the body 42 that wherein is formed with two through holes 44, a pair of vertically separating and corresponding distance of the thickness of pedal 11 and the flank 41 that extends internally from body 42, and support and securing elongated part 43.
In addition, each external carbuncle distributes bonded block 50 to be formed with the shape of rectangle and to have fastener hole 52, and fastener hole 52 forms corresponding with the position of the screwed hole 115 with internal thread 16 (contiguous with the opposite end of the reinforcing strip 117 that embeds in pedal 11).
Therefore, by screw 53, the screwed hole 115 in the opposite side of each pedal 11 of stair 10 (referring to Fig. 1), internal stress distribute the through hole 44 of bonded block, the fastener hole 24 in the stair carriage 21 and internal stress to distribute fastener hole 52 in the bonded block 40 by fixed with each other.At this moment,, the opposed side portions of each pedal 11 distributes in the space between the flank 41 of bonded block 40, so distribute stress effectively because being installed in internal stress respectively.
After this, a plurality of internal stresss distribute bonded blocks 40 to be fixed firmly to the inner surface of stair carriage 21, thereby make the inner surface of the extension 43 of connector 40 and body 42 and stair carriage 21 abut and by its support.A plurality of external carbuncles distribute bonded blocks 50 flatly to be arranged on the external surface of stair carriage 21 and with it to abut, thereby distribute the position of bonded block 40 corresponding with internal stress respectively.Therefore, when pedal 11 and stair carriage 20 interconnect, can reduce the stress of assembling in reinforcing strip 117 (for example, the iron reinforced pole) on every side, with this with the opposite side of stress distribution to pedal 11.In addition, the space between stair carriage 21 and the stair 10 is filled with internal stress and distributes bonded block 40, thereby can prevent from the top side of stair 10 permeablely to the bottom side, can prevent that perhaps pollutant from passing through.
Next use description to precast stair 10 and ground landing or the interconnective link 30 of middle landing (not shown).
Each link 30 that illustrates in the drawings has a plurality of reinforcing strip 32 that vertically are screwed to or are welded to reinforcement feature 31 by screw thread, as mentioned above.Reinforcing strip 32 has the length that is no more than 1m, and preferably has the form (not illustrating with Reference numeral) of support hat type bar (headed bar), thereby increases the adhesive power with respect to the landing of ground landing or centre fully.Simultaneously, can also form reinforcing strip 32a in the top, horizontal zone and the bottom level zone 28 and 29 of two stair carriages 21.
Though the opposed end that shows at the reinforcement feature 31 that is close to link 30 is formed with screwed hole (not illustrating with Reference numeral), and internal thread (not illustrating with Reference numeral) is arranged in this screwed hole, but can form external screw thread at the opposed end of reinforcement feature 31, described external screw thread extends beyond the relative cross side of each pedal.
When stair 10 and two stair carriages 21 are assembled or afterwards, at the opposed end of link 30 under the inner surface state of the top, horizontal zone of stair carriage 21 and bottom level regional 28 and 29, screw 28b and 29b are inserted in the fixing hole (not illustrating with Reference numeral), and wherein fixing hole passes the gusset plate 28a and 29a (they the are optional) formation in the top, horizontal zone and the bottom level zone 28 and 29 of stair carriage 21.Then, screw 28b and 29b are installed in the screwed hole 37 that the opposed end of reinforcement feature 31 forms, thereby reinforcement feature 31 is fixed firmly to stair carriage 20.
Zu Zhuan precast stairway system of the present invention 1 makes up in the following manner by this way: use the support member (not shown) to support landing beam 60 (referring to Figure 23 to 26) provisionally, the top and the bottom of two stair carriages 31 of precast stair 1 are arranged on the landing beam 60, then mfg. moulding die above above-mentioned link 30 and the reinforcing strip 32 that comes out from link 30, and concrete is injected in this mould, thereby form ground landing 3 and 4 (referring to Figure 23) and middle landing 2 (referring to Figure 23) together in company with body of wall (describing in detail) with reference to Figure 24 and 25, wherein the top of stair 10 and bottom integratedly respectively with ground landing 3 or 4 and middle landing 2 carry out seamless link.
Certainly in fibre reinforced cement composite material precast stairway system of the present invention, can also be that in the stair carriage is formed by metal material, and another be formed by the fibre reinforced cement composite material.
Referring to Fig. 2, the fibre reinforced cement composite material precast stairway system 1a of another preferred embodiment has and the essentially identical structure of the stair system shown in Fig. 1 according to the present invention, difference is that the stair carriage 21 among Fig. 1 is formed by metal material, and two stair carriages 20 of fibre reinforced cement composite material precast stairway system 1a all use the fibre reinforced cement composite material to make, and difference also be as reference Fig. 8 to 11 and 13 described, reinforcing strip 117 is from relative side-prominent of pedal 11, on the outstanding end of reinforcing strip 117, be formed with external screw thread 118, thereby can distribute the internal thread 51 on the external surface of bonded block 50 (it is positioned at the external surface of stair carriage 20) tightly to engage with external carbuncle.Therefore, additional description will be omitted for fibre reinforced cement composite material precast stairway system 1a.
With reference to Fig. 3, the fibre reinforced cement composite material precast stairway system 1b of another preferred embodiment is identical with the stair system shown in Fig. 2 except link 30 according to the present invention.Link 30 shown in Fig. 3 and the link something in common shown in Fig. 2 be they all respectively with 31 vertical connections of reinforcement feature, and its each all have a plurality of reinforcing strip 32, reinforcing strip 32 is support hat type bar, unique difference of the link 30 among Fig. 3 and Fig. 2 is, it is in square, rectangle or the trapezoidal prismatic concrete bodies that the above-mentioned reinforcement feature 31 among Fig. 3 is embedded in the cross section.Therefore, no longer fibre reinforced cement composite material precast stairway system 1b is described further.
Describe according to step block construction 110,120,130 and 140 preferred embodiment of the invention, that be assembled to fibre reinforced cement composite material precast stairway system 1 of the present invention, 1a and 1b with reference to Fig. 4-13 below.
At first, step block construction 110,120,130,140,110a, 120a, 130a and 140a can be divided into two types.In first type (internal thread type), the opposed end of internal thread 115 and 114 contiguous reinforcing strip 117 forms, wherein, reinforcing strip 117 is embedded in the pedal 11 of stair 10 (referring to Fig. 1), stair carriage 21 is configured to contact (referring to Fig. 1) with an end of stair 10 respectively, the screw (not shown) passes stair carriage 21 and engages with interior internal thread 115 and 116 then, with this fixing stair carriage 21, as Fig. 4 to 7 and shown in Figure 12.In second type (external screw thread type), external screw thread 118 forms at the opposed end of reinforcing strip 117, wherein, reinforcing strip 117 is embedded in the pedal 11 of stair 10, reinforcing strip 117 opposed ends extend (referring to Fig. 2 and Fig. 3) from the both sides of the pedal 11 of stair 10, stair carriage 20 is configured to contact with a sidepiece of pedal 11 respectively, the external screw thread 118 that forms in the respective end of reinforcing strip 117 extends through stair carriage 20 (referring to Fig. 2 and 3), and the nut (not shown) engages with the external screw thread 118 that extends through stair carriage 20, thereby fixedly stair carriage 20, as Fig. 8 to 11 and shown in Figure 13.
According to the present invention, although according to the safe bearing load intensity of the stair system of being finished, be optionally and variation as the quantity of the iron reinforcing strip of reinforcing strip 117 and area, usually two or three iron reinforcing strip are embedded in each pedal 11.
Fig. 4 is to show the step block construction 110,120,130 of I.S.S and 140 stereogram respectively to Fig. 7, and wherein, fibre reinforced cement composite material step block construction 110,120,130 and 140 of the present invention can have high or ultra high intensity.If they have high intensity, then they form by mixed cement, fine aggregate, filling material, fine ceramic powder, metallic fiber and water, its mixed proportion is 1: 0.9～1.7: 0.1～0.3: 0.02～0.1: 0.01～0.06: 0.03～0.2: 0.2～0.45, and has the back solidification intensity of 60MPa to 100MPa.Wherein, each step block construction has one to four step, and each step has integrally formed pedal 113 and riser 111.Each step block construction has the ridge 113 of insertion in one end thereof, and the insertion groove 114 that has elongation in its another end, thereby can be installed to by insertion ridge in the insertion groove of elongation of another step block construction a step block construction, and, form staircase 10 (referring to Fig. 1 to 3) thus with the connection one by one of a plurality of this staircase structures unit.
Because therefore the above manufacture process of having described stair 10 with reference to Fig. 1, omits its additional description at this.
The step block construction 110 of the I.S.S among Fig. 1 comprises: pedal 113 (its bottom side front end is formed with the insertion groove 114 of elongation), and riser 111 (its top is formed with and inserts ridge 112, and perpendicular to pedal 113 extensions), wherein, pedal 113 and riser 11 form as one.As a kind of selection, forefoot area in pedal 113 top sides can be formed with a plurality of anti-slip tanks 116, in addition, a plurality of reinforcing strip 117 (for example, the iron reinforcing strip) is embedded in the pedal 113, a plurality of internal threads (not illustrating with Reference numeral) are respectively adjacent in the relative side of the reinforcing strip 117 of pedal and form, and screwed hole 115 is exposed to the opposite flank of step block construction 110.Therefore, when forming staircase 10 (referring to Fig. 1), a plurality of step block constructions 110 are assembled as follows: the insertion ridge 112 of a step block construction 110 is inserted in the insertion groove 114 of elongation of second step block construction, then the insertion ridge 112 of second step block construction 110 is inserted in the insertion groove 114 of elongation of the 3rd step block construction 110.
The step block construction 120,130 of the I.S.S that Fig. 5 shows in Fig. 7 and the 140 step block constructions 110 by two to four I.S.Ss showing in the whole connection layout 4 form, and the construction of the above-mentioned step block construction 110 of fundamental sum is identical.Therefore, here omitted the step block construction 120,130 of I.S.S and 140 further describe.
Figure 12 schematically shows the example of the pedal 113 of the step block construction 110,120,130 that is used for I.S.S and 140, wherein, has shown left view in the left part of figure, and the right side has then shown sectional top view.Pedal 113 comprises that two or three are embedded in the reinforcing strip 117 in the pedal 113, and the internal thread in the screwed hole 15 16, and screwed hole 15 forms in the position of the opposed end of pedal 113 contiguous reinforcing strip 117, and opens to pedal 113 outsides.
Therefore, in the step block construction 110,120,130 and 140 of I.S.S, screw passes stair carriage 21 from the external surface of stair carriage 21, is installed in the screwed hole 115, with this stair 10 and stair carriage 21 is interconnected, and is as above described with reference to Fig. 1.
Fig. 8 is respectively the stereogram of demonstration according to step block construction 110a, 120a, 130a and the 140a of the external screw thread type of the preferred embodiment of the invention to Figure 11, wherein, except the reinforcing strip 117 that shows to Figure 11 at Fig. 8 is embedded in the pedal 113 and does not have any internal thread and be formed with the external screw thread 118 in the end of the exposure of reinforcing strip 117, reinforcing strip 117 substantially with Fig. 4 show in Fig. 7 identical.Therefore, omitted further describing here to reinforcing strip 117.
Figure 13 schematically shows the example of the pedal 113 of the step block construction 110a, 120a, 130a and the 140a that are used for the external screw thread formula, wherein, has shown left view in the left part of figure, and the right side has then shown sectional top view.Pedal 113 comprises that two or three are embedded in the reinforcing strip 117 in the pedal 113, and the opposed end of reinforcing strip 117 is exposed to the outside of pedal 113, and wherein, external screw thread 118 forms on the end of the exposure of reinforcing strip 117 at pedal 113.
Therefore, among step block construction 110a, 120a, 130a and the 140a of screw-type, nut 51 is installed on the external screw thread 118 that extends through stair carriage 20, with this stair 10 and stair carriage 20 is interconnected, and is as described above with reference to Figure 2 outside.
Usually use the swage tool to make above-mentioned step block construction 110,120,130 and 140, because this mould can use repeatedly.Yet, consider the difficulty and the cost of mfg. moulding die, can use mould of plastics or through fiber reinforced mould of plastics.
As a kind of selection, by in advance the pigment of organic or inorganic being mixed with the material of step block construction and/or stair carriage and stirring, then build and solidify these materials, produce have desired color according to step block construction of the present invention and/or stair carriage, at this, can simplify or omit the work of colouring, these work can be carried out as finishing process after finishing the construction stair system.
Further describe stair carriage 20 with reference to Figure 15 below.Stair carriage 20 forms with traditional form, has top, horizontal zone 28, tilting zone 27 and bottom level zone 29.Pass stair carriage 20 and be formed with a plurality of fixing holes 24, fixing hole 24 is corresponding with the position of the reinforcing strip 117 that is embedded in pedal 11 (each pedal can have two or three aforesaid reinforcing strip 170) and extends from its relative both sides, so that reinforcing strip 117 extends through fixing hole 24, thereby connect and sustain pedal 40 and stair carriage 20.Stair carriage 20 (its pre-constructed unit for being made by the fibre reinforced cement composite material) has the hot strength (about 15MPa) of fibre reinforced cement composite bodies, and this is enough for stair carriage.Yet, reinforcing strip by being embedded in one or more bendings at stair carriage 20 (for example, has the iron reinforced pole that is bent upwards the end, not shown) or reinforcing wire gauze 26 as shown in the figure guarantee that the reinforcing of the hot strength of this stair carriage also is possible, wherein, the quantity of reinforcing strip or reinforcing wire gauze 26 and embedded location are determined by the hot strength that the calculating stair carriage can be enough to be supported on the tensile load that takes place on the stair carriage 20.
If desired, guide rod or safe enclosure wall can be provided above stair carriage 20, thereby protect old and the weakling.
Although be that optionally the thickness of stair carriage 20 is preferably and is not more than 10cm, more preferably is not more than 7cm for the present invention, thereby reduce the weight of stair carriage 20.
Figure 16 to 18 has exemplarily shown and has been used for by assembling the embodiment that a plurality of different step block construction 110,110b and 110c (step that its each formation is independent) form stair system, wherein, drawing reference numeral 27 is represented the tilting zone of stair carriages 20 or 21.
Figure 16 has shown step block construction 110, wherein each block construction consistent with shown in Fig. 4.Figure 17 has shown that wherein each has multi-form step block construction 110b with comparing shown in Fig. 4, wherein step block construction 110b comprises the pedal (not representing with Reference numeral) with the insertion ridge that is positioned at its rear end, top side, and from the downward riser (not representing with Reference numeral) that extends and have the embedded groove (not representing with Reference numeral) of elongation in its lower end of the front end of pedal, pedal and riser form as one mutually.Figure 18 has shown that each has taked other multi-form step block construction 110c, wherein step block construction 110c has pedal, extend and have the preceding riser of the embedded groove (not representing) of elongation downwards with Reference numeral in its lower end from the front end of pedal, and the back riser that extends upward and have on its top the embedding ridge (not representing with Reference numeral) of elongation from the rear end of pedal, pedal and front and back riser form as one mutually.
With other step block constructions 110a, 120, the 130a, 130 shown in step block construction 110 of the present invention, 110b and the 110c shown in Figure 16-18 and Fig. 5-11,140 and 140a when interconnecting, do not need to use for example fastening devices of screw.
In addition, for the stress distribution on the precast stair of further guaranteeing this present invention, and obtain stable precast stairway system, can be formed for inserting the pedal rectangular channel 210 of (in Fig. 1 to 3, representing) at the inner surface of as shown in figure 19 stair carriage 20 with Reference numeral 11.
If stair carriage 20 has rectangular channel 210 as shown in figure 19, it is necessary then using the step block construction 110 ', 110b ' and the 110c ' that pass through to revise to be applicable to this stair carriage 20 shown in Figure 20-22.Step block construction 110 ', 110b ' and 110c ' are basic identical with step block construction 110,110b and 110c shown in Figure 16-18 respectively, difference is, each pedal 113 has from the extended extension 113a of the left and right sides one of pedal 113, thereby make extension 113a can embed or be supported in the rectangular channel 210 on the corresponding stair carriage 20, to guarantee stress distribution.Therefore, omitted further detailed description at this to step block construction 110 ', 110b ' and 110c '.
Certainly, can also form step block construction 110 ', 110b ' and 110c ' with such extension 113a, wherein outside in the thread type (the step block construction of for example above-mentioned external screw thread type), extension 113a is integrally formed at the left and right sides and the pedal 113 of aforesaid pedal 113, and reinforcing strip 117 is optional for the present invention but optional.
After Figure 23 has exemplarily shown on precast stair 10 of the present invention being arranged on by the landing beam 60 of support member 90 carryings, the method for structure ground landing 3 and 4, middle landing 2 and body of wall (in Figure 25, representing) with Reference numeral 80.
At first, with reference to Figure 26 landing beam 60 is described.Although it is possible forming this landing beam 60 by high-intensity fibre reinforced cement composite material, expectation forms by the fibre reinforced cement composite material with superhigh intensity.
Particularly, this landing beam can be formed by the mixture of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixed proportion is 1: 0.9～1.7: 0.1～0.3: 0.02～0.1: 0.01～0.06: 0.03～0.2: 0.2～0.45, and have the back solidification intensity of 60MPa to 100MPa, be not higher than 7% void content, common scope is 3% to 7%.Yet, more preferably, this landing beam can be formed by the mixture of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixing ratio is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and have the back solidification intensity of 100MPa to 200MPa, be not higher than 5% back curing void content, common scope is 3% to 5%.
Above-mentioned landing beam 60 has at least two reinforcing strip 61 that are embedded in wherein, near and the reinforcement feature 62 that reinforcing strip 61 relative both sides, is provided with respectively, wherein, reinforcing strip 61 extends beyond reinforcement feature 62, thereby makes the extension 63 of reinforcing strip 61 be exposed to the outside of landing beam 60.In addition, a plurality of ribs 64 are embedded in the landing beam 60, and expose from its top surface extension.The front side of landing beam 60 can be formed the extension 65 of inclination, and this in the present invention not necessarily but optionally.
The extension 63 of reinforcing strip 61 from landing beam 60 extends is provided, purpose is behind the concreting landing beam 60 and body of wall to be combined, thereby strengthen the structural stability of stair, provide the purpose of the rib 64 that is exposed to landing beam 60 tops to be, have enough bond strengths between landing beam 60 and the concrete making behind the concreting, wherein, landing beam 60 and concrete will form ground landing or middle landing.
If landing (the generality term that is used for ground landing and middle landing) has for example thickness of about 15cm, then landing beam 60 has the thickness (highly) that is about 5cm.In addition, landing beam 60 should have the minimum widith that can support stair carriage 20, and has the form that makes things convenient for the iron reinforcing strip to be provided with in the landing plate.
As shown in figure 23, use above-mentioned landing beam 60 to strengthen the support force of mould, because the support force that this mould provides is not enough to make precast stair 10 to be set on the mould, this precast stair 10 is set on the landing beam 60 that is supported by support member 90.
In the drawings, Reference numeral 32 expression reinforcing strip.
Figure 24 is the exemplary side elevation that shows the inventive method be used for making up simultaneously ground landing 3 and 4, middle landing 2 and body of wall (representing with Reference numeral 80 at Figure 25), and Figure 25 is the sectional view that the line I-I in Figure 24 obtains.
With reference to Figure 24, top, horizontal zone 29 and bottom level zone 28 are respectively placed on the landing 60, and landing 60 is supported by support member 90.In shown embodiment, the mould that is used to form body of wall can (that is, be positioned at by V by the rectangular mould 80 of a plurality of standards
1, h
1, V
2And h
2The area in the outside, zone that limits) and the triangular mould 70a of a plurality of standards constitute standardized rectangular mould 70a and be positioned at the zone of stair carriage 20 (that is, by V
1, h
1, V
2And h
2The inboard area in zone that limits) tilting zone 27 contacts in, wherein, a stair carriage 20 that is used for the stair carriage of precast stair 10 is used as mould.In the accompanying drawings, landing and ground landing in the middle of drawing reference numeral 2 and 4 is represented respectively.
As shown in figure 25, stair carriage 20 as mould is positioned at such position, can be embedded into and be fixed in the body of wall 80 that will be fabricated (promptly at this position stair carriage 20, be in not and mould 70 and 70a coplane, but be displaced to position on the plane in the body of wall 80, therefore stair carriage 20 can be supported securely by body of wall 80), therefore, form body of wall 80, ground landing 3 and 4 and middle landing 2 simultaneously, thereby make that precast stair 10 can provide working space and portable cord in the middle of the process of structure.Therefore, this precast stair is very economical and practical in the use.
Simultaneously, be permanent mold or interim mould no matter be used for the mould of body of wall, it is easy forming body of wall mould (some of them are formed by the stair carriage that substitutes existing mold).
As mentioned above, because the pliability that fibre reinforced cement composite material precast stairway system of the present invention has, it has outstanding advantage aspect durability and the load-carrying ability, also has the high or ultra high strength of 60MPa to 200MPa simultaneously.In addition, it also has outstanding watertightness, and has performances such as can significantly reducing the walking noise.In addition, by using the prefabricated step block construction of one or more above-mentioned fibre reinforced cement composite materials, can be simply and high strength or the ultrahigh-strength fiber-reinforced cement composite material precast stairway system of making in advance of the present invention easily be provided.Therefore, can this stair system be installed, that is, under the situation that need not to make the mould that is used for stair self or support member, support the landing beam, then simply one or more step block constructions are arranged on the landing beam by following steps.In addition, be used to form the mould of body of wall owing to can use stair carriage to substitute some, therefore, can by assembling be used for landing and body of wall mould, then simultaneously concrete is injected into all moulds, and integrally form body of wall and landing.In addition, in the process that makes up, not only precast stair can be used as service aisle, and body of wall can also support the load of the stair carriage of one or two inclination in manufacture process, consequently reduced labor cost, reduced construction cost, reduced manufacturing/cost of transportation, and shortened the construction time owing to having shortened construction period.In addition, by replace traditional concrete or metal framework stair system (construct described legacy system and need a large amount of labours and time) with the fibre reinforced cement composite material precast stairway system of making in advance of the present invention, obtaining epoch-making progress aspect saving construction cost and the shortening construction period.Therefore, can expect that stair of the present invention will replace appreciable a part of conventional concrete or metal framework stair system.
Although for descriptive purpose, the preferred embodiments of the invention have been described, but for a person skilled in the art, under the situation that does not deviate from the scope and spirit of the present invention that limit as claims, obviously can carry out various modifications, increase and replacement.
Claims (16)
1. prefabricated step block construction, wherein, described step block construction is formed by the mixture of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixed proportion is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and have the back solidification intensity of 100MPa to 200MPa, and described step block construction comprises at least one step, and described step has at least one pedal and at least one riser that forms as one each other.
2. prefabricated step block construction as claimed in claim 1, wherein, described at least one step has the insertion ridge that forms at the one end, and the insertion groove of the elongation that forms at its other end.
3. prefabricated step block construction as claimed in claim 2, wherein, described step has a pedal, and the upwardly extending riser in the rear end from described pedal, the insertion groove of described elongation forms at the front end of the bottom side of described pedal, and described insertion ridge forms on the top of described riser.
4. prefabricated step block construction as claimed in claim 2, wherein, described step has a pedal, and a riser that extends downwards from the front end of described pedal, the insertion groove of described elongation forms in the rear end of the bottom side of described pedal, and described insertion ridge forms in the bottom of described riser.
5. prefabricated step block construction as claimed in claim 2, wherein, described step has pedal, from the upwardly extending starting stave in the rear end of described pedal and second riser that extends downwards from the front end of described pedal, insertion end forms on the top of described starting stave or the bottom of described second riser, and the insertion groove of described elongation forms in the bottom of described second riser or the top of described starting stave.
6. prefabricated step block construction as claimed in claim 2, wherein, described pedal has the extension in its both sides.
7. prefabricated step block construction as claimed in claim 1, wherein, embedding in described pedal has at least two reinforcing strip.
8. prefabricated step block construction as claimed in claim 7, wherein, described pedal is formed with screwed hole in the position of the opposite end of contiguous described reinforcing strip, each described screwed hole is provided with internal thread, and the outside towards described pedal is open, perhaps described reinforcing strip extends beyond two cross sides of described pedal, and the end of described reinforcing strip is formed with external screw thread.
9. prefabricated step block construction as claimed in claim 1, wherein, front end is formed with a plurality of anti-slip tanks in the top side of described pedal.
10. precast stairway system comprises:
Stair, it is by being joined together to form a plurality of step block constructions one by one, and each described step block construction comprises at least one step, and described step has at least one pedal and at least one riser that forms as one each other; And
The stair carriage that a pair of and described stair combine,
Wherein, described step block construction is formed by the mixture of cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixed proportion is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and has the back solidification intensity of 100MPa to 200MPa.
11. precast stairway system as claimed in claim 10, wherein, in the described stair carriage at least one formed by metal material, perhaps form by a kind of like this mixture, described mixture is formed by cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixing ratio is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and has the back solidification intensity of 100MPa to 200MPa.
12. precast stairway system as claimed in claim 10, wherein, each described stair carriage has top, horizontal zone and bottom level zone, a pair of link is connected with each other the described top, horizontal zone and the bottom level zone of described stair carriage respectively, each described link has reinforcement feature and a plurality of reinforcing strip, and described reinforcing strip vertically is connected to described reinforcement feature.
13. precast stairway system as claimed in claim 10, wherein, between described pedal and described stair carriage, be inserted with internal stress and distribute bonded block, each described internal stress distributes bonded block to have body, the a pair of flank that is used to grip pedal, and from the downward extension of extending of described body, external surface at described stair carriage is provided with external carbuncle distribution bonded block, wherein, described internal stress distribution bonded block and described external carbuncle distribution bonded block interconnect by screw respectively and are fixed together, the described internal stress of described body and each distribute the extension of bonded block to be positioned to be respectively with the respective lateral side of a pedal and a riser against, and with described stair carriage one of them, with the described cross side interior surface opposing of described pedal and riser against.
14. a method of building precast stairway system comprises:
(A) the prefabricated step block construction of assembling a plurality of fibre reinforced cement composite materials as claimed in claim 1, and use screw that described step block construction is installed to a pair of stair carriage, thus form precast stair as claimed in claim 10;
(B) after forming described precast stair or the while, two links are fixed to the top and the bottom level zone of described stair carriage, each described link has reinforcement feature and a plurality of reinforcing strip, and described reinforcing strip is connected with described reinforcement feature is vertical;
(C) the landing beam is set on support member, described support member is positioned at the location that is formed with one or more ground landing and middle landing, and each described landing beam is provided with at least one reinforcing strip;
(D) will have the precast stair that is fixedly coupled parts is arranged on the described landing beam;
(E) assemble the mould that is used to build described ground landing, described middle landing and body of wall by this way, promptly, can embed and be fixed to the position of waiting the described body of wall built at described stair carriage, one in the described stair carriage can be used as mould; And
(F) concrete is injected into described mould, thereby integrally forms described ground landing, described middle landing and body of wall simultaneously.
15. method as claimed in claim 14, wherein, in the described stair carriage at least one formed by metal material, perhaps form by a kind of like this mixture, described mixture is formed by cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixing ratio is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and has the back solidification intensity of 100MPa to 200MPa.
16. method as claimed in claim 15, wherein, described landing beam is formed by metal material, perhaps form by a kind of like this mixture, described mixture is formed by cement, fine aggregate, filling material, fine ceramic powder, water reducing agent, metallic fiber and water, its mixing ratio is 1: 0.8～1.5: 0.2～0.4: 0.05～0.3: 0.02～0.07: 0.05～0.4: 0.18～0.3, and having the back solidification intensity of 100MPa to 150MPa, described landing beam also comprises extended a plurality of ribs from its top side.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050065450A KR100707872B1 (en) | 2005-07-19 | 2005-07-19 | High Strength Precast Unit Structure of Fiber Reinforced Cement Composite for Stairs and Manufacturing Method Thereof, and the Stairs Using the Same and Constructing Method for Stairway |
| KR1020050065450 | 2005-07-19 | ||
| KR1020050065482 | 2005-07-19 | ||
| KR1020060049829 | 2006-06-02 |
Publications (2)
| Publication Number | Publication Date |
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| CN1912305A true CN1912305A (en) | 2007-02-14 |
| CN100476145C CN100476145C (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100988948A Expired - Fee Related CN100476145C (en) | 2005-07-19 | 2006-07-19 | Precast stairway system, unit structure thereof, and method of constructing stairway system using the same |
Country Status (2)
| Country | Link |
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| KR (1) | KR100707872B1 (en) |
| CN (1) | CN100476145C (en) |
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| JP3196043B2 (en) * | 1992-09-11 | 2001-08-06 | 株式会社横森製作所 | Construction method of stairs and staircase, construction method of stairs, and stair members |
| FR2708263B1 (en) | 1993-07-01 | 1995-10-20 | Bouygues Sa | Composition of metal fiber concrete for molding a concrete element, elements obtained and thermal cure process. |
| JPH07119269A (en) * | 1993-08-09 | 1995-05-09 | Yokomori Seisakusho:Kk | Extruded footstep and manufacture thereof |
| KR100393314B1 (en) | 1994-12-26 | 2003-10-17 | 가부시키가이샤 요코모리 세이사쿠쇼 | How to build stairs and units stairs |
| JP4174613B2 (en) | 1998-03-18 | 2008-11-05 | 鹿島建設株式会社 | Prestressed concrete tread manufacturing method |
| KR20030095606A (en) * | 2002-06-12 | 2003-12-24 | (주)두하 | assembly type ladder |
| KR100500306B1 (en) * | 2002-06-14 | 2005-07-11 | 두하요코모리주식회사 | assembly type steel frame ladder of reinforcement concrete building and construction method thereof |
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2005
- 2005-07-19 KR KR1020050065450A patent/KR100707872B1/en active IP Right Grant
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- 2006-07-19 CN CNB2006100988948A patent/CN100476145C/en not_active Expired - Fee Related
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| CN109138300A (en) * | 2018-09-30 | 2019-01-04 | 杭州江润科技有限公司 | The construction method of precast stair mounting structure |
| CN110005150A (en) * | 2019-04-28 | 2019-07-12 | 安徽军瑶新型材料有限公司 | A kind of multistage parallel-moving type assembly architectural stair |
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| CN110409722A (en) * | 2019-08-07 | 2019-11-05 | 浙江东南建筑设计有限公司 | A kind of assembled staircase structure and its construction method |
| CN111042567A (en) * | 2019-12-27 | 2020-04-21 | 赵玉玲 | Prefabricated concrete stair surface repairing treatment method for fabricated building |
| CN113062542A (en) * | 2021-04-02 | 2021-07-02 | 石江余 | Assembled building steel structure stair connected node |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070010672A (en) | 2007-01-24 |
| CN100476145C (en) | 2009-04-08 |
| KR100707872B1 (en) | 2007-04-16 |
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