CN211622347U - Prefabricated combination stair part of assembled - Google Patents
Prefabricated combination stair part of assembled Download PDFInfo
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- CN211622347U CN211622347U CN202020116482.8U CN202020116482U CN211622347U CN 211622347 U CN211622347 U CN 211622347U CN 202020116482 U CN202020116482 U CN 202020116482U CN 211622347 U CN211622347 U CN 211622347U
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Abstract
The utility model discloses an assembled prefabricated combined stair part, which comprises a high-precision non-dismantling template, a combined formed steel bar product, a plurality of groups of high-precision non-dismantling templates, a bottom supporting plate, a side closed surface and a stair tread, wherein the plurality of groups of high-precision non-dismantling templates form the bottom supporting plate, the side closed surface and the stair tread of a stair, the plurality of groups of high-precision non-dismantling templates are fixed with the napping surface of the high-precision non-dismantling template below the multi-group steel bar through connecting screws, and the opening side of the multi-group steel bar is connected with the bottom; the high-precision non-dismantling template at the stair step part is not installed and reserved as a feed inlet, the bottom supporting plate, the side closed surface and the stair tread are connected and combined to form a cavity, and concrete is poured into the cavity and is solidified into the stair. The utility model discloses think about ingenious, compact structure is reasonable, and combination shaping reinforcing bar goods, closed surface all accomplish through the mill is prefabricated, and the built-up part is "hollow" component, and light in weight does benefit to the hoist and mount transportation, and reduce cost exempts from to demolish the design of template and has reduced work load, has guaranteed the roughness requirement of stair.
Description
Technical Field
The utility model relates to an assembled concrete building field especially relates to a prefabricated combination stair part of assembled.
Background
In the development of the assembly type building industry, the prefabricated staircase is an important horizontal stressed member in the assembly type building and is more and more widely applied. Prefabricated staircase who uses in the prefabricated construction mostly is "solid" component, and weight is big, only needs to use with the help of hoisting equipment such as large-tonnage tower crane, and transportation hoist and mount difficulty and cost are higher. In addition, the prefabricated staircase and the stair platform are connected by bolts, so that the requirement on the quality of construction workers is high. In the traditional cast-in-place building, the stairs are bound with reinforcing steel bars on site, and are formed and poured by using wood templates, steel templates, aluminum templates and the like, so that the construction workload is large, the steel bar waste rate is high, the construction waste discharge is large, and the dust emission and noise environmental pollution are serious. The utility model discloses inherit the assembled building development theory, through improving traditional cast-in-place technology, develop a neotype prefabricated combination stair part of assembled to realize dismantling-free, the quality is light, be convenient for hoist and mount transportation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prefabricated combination stair part of assembled, it is big to solve prior art prefabricated stair weight, and hoist and mount transportation difficulty requires high problem to constructor technical merit.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an assembled prefabricated combination stair part, including high accuracy exempt from to tear open template, combination shaping reinforcing bar goods, several style of calligraphy shaped steel, L shaped steel and connecting screw, two sets of high accuracy exempt from to tear open the template and be located the upper and lower both sides of combination shaping reinforcing bar goods, be located the below the high accuracy exempt from to tear open the template and be the plane slope place, several style of calligraphy shaped steel and the below the high accuracy exempt from to tear open the napped surface of template and pass through connecting screw is fixed, the opening side of several style of calligraphy shaped steel with the bottom of combination shaping reinforcing bar goods is connected; the high-precision disassembly-free templates positioned above are matched and lapped pairwise to form stair steps, the L-shaped steel is arranged on the inner side of the corner of any two adjacent high-precision disassembly-free templates and is fixed through the connecting screw, the part of the stair step above is horizontal to the high-precision disassembly-free template which is prefabricated in a factory but is not installed, a post-cast concrete feeding port is reserved, and the L-shaped steel is adopted for positioning and is connected through the connecting screw after hoisting and pouring construction are finished; the side of the combined forming steel bar product is symmetrically provided with two groups of high-precision disassembly-free templates, the high-precision disassembly-free templates on two sides and the upper and lower groups of high-precision disassembly-free templates are connected and combined together through L-shaped steel and connecting screws to form a cavity, and concrete is poured into the cavity and is solidified into a stair.
Furthermore, the combined and molded steel bar product comprises an upper stress bar, a lower stress bar, an edge longitudinal bar and a steel bar diagonal draw bar, wherein the upper stress bar and the lower stress bar are mutually perpendicular and are connected in a net shape to form an upper steel bar net piece and a lower steel bar net piece, and the upper steel bar net piece and the lower steel bar net piece are connected together through a plurality of steel bar diagonal draw bars which are arranged in a staggered manner; the edge longitudinal bars are symmetrically arranged and connected to two long edges of the upper reinforcing mesh and the lower reinforcing mesh.
And further, the adjacent upper stress rib, the lower stress rib and the rib diagonal draw bar are bound together or welded together to form a reinforcement cage, and the reinforcement cage is connected with the edge longitudinal rib to form the combined molded reinforcement product.
Still further, a plurality of the shape steel bars are arranged at equal intervals and are abutted against the lower part of the combined and formed steel bar product, the opening sides of the shape steel bars are connected with the lower stress bars at the lower part, and the sealing sides of the shape steel bars are connected with the high-precision non-dismantling template at the bottom through screws.
Still further, the vertical intersection positions of the upper stair step and the inclined supporting plate at the bottom and the side baffle plate which are formed by the high-precision disassembly-free template are all connected by L-shaped steel and connecting screws, and the high-precision disassembly-free template at the step position is prefabricated by a factory.
Still further, the connecting screw adopts countersunk head tapping screw, and the nut department brush of countersunk head tapping screw has anti-rust paint.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to an assembled prefabricated combined stair component, which comprises a high-precision non-dismantling template, a combined formed steel bar product, a U-shaped steel bar, an L-shaped steel bar and a connecting screw, wherein the combined formed steel bar product is formed by connecting an upper stress bar, a lower stress bar, a steel bar diagonal draw bar and an edge longitudinal bar in sequence; the high-precision disassembly-free template is made of fiber reinforced concrete materials, so that the impact force and the vibrating force generated in the concrete pouring process are met, the high flatness and the high verticality of the outer surface can be ensured, plastering is avoided, and the requirement that all templates at the pouring enclosing part are not disassembled is met; the combined forming reinforcing steel bar product is produced by adopting an automatic production line of a factory, the production precision is high, the material consumption is saved, and the quality problem caused by artificial factors is avoided; the connection of the combined forming reinforcing steel bar products still continues to adopt a conventional connection mode, the closed surfaces formed by the high-precision disassembly-free templates are transported to the site for assembly after being prefabricated and produced by a factory, the assembled closed surfaces are leveled and fixed through the supporting system, and the cast-in-place concrete is poured in the central cavity. The utility model discloses think about ingenious, compact structure is reasonable, and the combination shaping reinforcing bar goods, the closed surface as component part all accomplish through the mill is prefabricated, and the component part is "hollow" component, and light in weight does benefit to the hoist and mount transportation, and reduce cost, the design of demolising the template is exempted from to the high accuracy has reduced work load, has guaranteed the roughness requirement of stair.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front view of the assembled prefabricated assembled staircase component of the present invention;
FIG. 2 is a top view of the assembled prefabricated assembled staircase of the present invention;
FIG. 3 is a cross-sectional view of the utility model at position A-A;
FIG. 4 is an enlarged view of the position B of FIG. 1 according to the present invention;
description of reference numerals: 1. a high-precision dismounting-free template; 2. an upper stress rib; 3. a lower stress rib; 4. a steel bar diagonal draw bar; 5. longitudinal edge ribs; 6. a few shaped steel; 7. l-shaped steel; 8. and connecting screws.
Detailed Description
As shown in fig. 1-4, an assembled prefabricated combined stair component comprises a high-precision non-dismantling template 1, a combined formed steel bar product, a plurality of shape steel 6, L-shaped steel 7 and connecting screws 8, wherein two groups of high-precision non-dismantling templates 1 are positioned on the upper side and the lower side of the combined formed steel bar product, the high-precision non-dismantling template 1 positioned below is obliquely placed in a plane, the plurality of shape steel 6 and the galling surface of the high-precision non-dismantling template 1 below are fixed through the connecting screws 8, and the opening side of the plurality of shape steel 6 is connected with the bottom of the combined formed steel bar product; the upper high-precision non-dismantling templates 1 are matched and lapped pairwise to form stair steps, the L-shaped steels 7 are arranged on the inner sides of the corners of any two adjacent high-precision non-dismantling templates 1 and are fixed through the connecting screws 8, the parts of the upper stair steps are horizontal to the high-precision non-dismantling templates 1, the high-precision non-dismantling templates 1 are prefabricated in factories but not installed, a post-cast concrete feeding hole is reserved, and the L-shaped steels 7 are positioned and connected through the connecting screws 8 after hoisting and pouring construction are completed; the side symmetry of combination shaping reinforcing bar goods is provided with two sets of high accuracy exempt from to tear open template 1, the high accuracy of both sides exempt from to tear open the template and pass through L shaped steel 7 and two sets of high accuracy exempt from to tear open the template and be connected the combination together with connecting screw 8 and form the cavity, concreting solidifies into the stair in the cavity. Specifically, the high-precision disassembly-free template 1 is made of fiber reinforced concrete, and the material is light in weight and high in solidification and connection strength with the concrete.
The combined forming steel bar product comprises an upper stress bar 2, a lower stress bar 3, an edge longitudinal bar 5 and steel bar diagonal draw bars 4, wherein the upper stress bar 2 and the lower stress bar 3 are mutually perpendicular and are connected in a net shape to form an upper steel bar net piece and a lower steel bar net piece, and the upper steel bar net piece and the lower steel bar net piece are connected together through a plurality of steel bar diagonal draw bars 4 which are arranged in a staggered manner; the edge longitudinal bars 5 are symmetrically arranged and connected to two long edges of the upper reinforcing mesh and the lower reinforcing mesh.
Specifically, the upper stress rib 2, the lower stress rib 3 and the rib diagonal draw bar 4 which are adjacent to each other are bound together or welded together to form a reinforcement cage, and the reinforcement cage is connected with the edge longitudinal rib 5 to form the combined molded reinforcement product. The plurality of the n-shaped steel sections 6 are arranged at equal intervals and abut against the lower part of the combined and formed steel bar product, the opening sides of the n-shaped steel sections 6 are connected with the lower stress bars 3 at the lower part, and the sealing sides of the n-shaped steel sections 6 are connected with the high-precision non-dismantling formwork 1 at the bottom through screws 8.
The upper portion stair that high accuracy exempt from to tear down template 1 is constituteed mark time, the slope layer board and the side shield board of bottom intersect perpendicularly and all adopt L shaped steel 7 and connecting screw 8 to connect, mark time the department high accuracy exempt from to tear down the template and pass through the mill prefabrication, the job site assemble together can, pour the completion back high accuracy exempt from to tear down template 1 need not demolish. Specifically, the connecting screw is a countersunk self-tapping screw, and the nut of the countersunk self-tapping screw is brushed with antirust paint.
The utility model discloses a preparation assembling process as follows:
first step, preparation of materials: the assembly type prefabricated combined stair component consists of a high-precision disassembly-free template 1, a combined formed steel bar product and related connecting pieces; the connecting piece comprises a n-shaped steel 6, an L-shaped steel 7 and a connecting screw 8, the high-precision disassembly-free template 1 comprises four closed surfaces, namely an upper closed surface, a lower closed surface and a front closed surface, and the combined formed steel bar product is positioned in the middle of a cavity formed by the high-precision disassembly-free template;
and step two, manufacturing a combined formed steel bar product:
1) firstly, cutting prepared reinforcing steel bars with different specifications into a plurality of upper stress bars 2, lower stress bars 3 and reinforcing steel bar diagonal draw bars 4 with required lengths; then, vertically arranging and binding the upper stress bar 2 and the lower stress bar 3 together to form an upper reinforcing mesh sheet and a lower reinforcing mesh sheet, wherein the upper reinforcing mesh sheet is positioned above the lower reinforcing mesh sheet; secondly, a reinforcing steel diagonal draw bar 4 is arranged between the two reinforcing steel mesh sheets, and two ends of the plurality of reinforcing steel diagonal draw bars 4 are sequentially welded on the upper reinforcing steel mesh sheet and the lower reinforcing steel mesh sheet, so that a rhombic grid is formed, and the rhombic grid is specifically provided with two ends of two groups of reinforcing steel mesh sheets; finally, the inner side corner of the reinforcement cage consisting of the upper stress rib 2, the lower stress rib 3 and the reinforcement diagonal draw bar 4 is connected with an edge longitudinal rib 5;
the upper stress bar 2, the lower stress bar 3, the steel bar diagonal draw bar 4 and the edge longitudinal bar 5 are orderly connected together to form a combined formed steel bar product.
2) After the combined forming reinforcing steel bar product is manufactured, a plurality of n-shaped steel sections 6 are arranged below the lower layer reinforcing mesh at equal intervals, and one ends of the openings of the n-shaped steel sections 6 are welded on the lower stress bars 3 on two sides of the combined forming reinforcing steel bar product.
Thirdly, manufacturing a sealing surface;
1) manufacturing a bottom inclined supporting plate: one side of each of the high-precision disassembly-free templates 1 is roughened by adopting a rectangular groove, and the roughened side is connected with the inverted V-shaped steel 6;
2) manufacturing a lateral sealing surface: splicing a plurality of high-precision non-dismantling templates into a shape of a stair side step, wherein the side step is fixedly connected with a bottom supporting plate by adopting L-shaped steel 7 and connecting screws 8;
3) manufacturing a top stair tread: the method comprises the following steps that a plurality of high-precision non-dismantling templates 1 are matched and lapped pairwise to form stair treads, the inner sides of the corners of any two adjacent high-precision non-dismantling templates 1 are supported by L-shaped steel 7 and fixedly connected together through countersunk self-tapping screws, and two adjacent stair treads are spliced together to form a stair tread surface; wherein, the nut of the connecting screw 8 is brushed with antirust paint;
fourthly, assembling in a factory: the combined and molded steel bar product, the bottom supporting plate, the top stair tread surface and the lateral sealing surface are all combined in a factory, and a horizontal template at the step part of the stair is reserved for a post-cast concrete feeding port; the template at the step position of the part of the stair is prefabricated in a factory, and after the template is hoisted and cast, the L-shaped steel is connected with a connecting screw;
fifthly, assembling on a construction site: after being transported to a construction site, the prefabricated combined stair part is hoisted to an installation position by a tower crane, and the middle upper stress rib 2, the lower stress rib 3 and the edge longitudinal rib 4 of the prefabricated combined stair part are effectively connected with the reinforcing steel bars in the cast-in-situ stair platform of the construction site;
sixthly, pouring; after the prefabricated combined stair part is installed, a post-cast concrete feeding hole is reserved at the stair step part of the prefabricated combined stair part, and concrete is cast on site to form a bearing member.
The prefabricated combined stair component is characterized in that a high-precision non-dismantling template 1 and a combined and formed steel bar product are effectively combined through a special connecting piece to form a brand-new prefabricated combined stair component by further developing the development concept of the prefabricated building, the steel bar and the high-precision non-dismantling template are prefabricated and formed in a factory according to the specified shape and size of the prefabricated combined component, and the prefabricated combined component is assembled on a construction site and then cast on the site to form the bearing member stair. The prefabricated assembled parts are hollow components, light in weight, beneficial to hoisting and transportation and low in cost. In addition, because the steel bar connecting structure is a hollow component, the steel bar connecting structure is combined together in a binding or welding mode, the construction difficulty is reduced, and the structural safety is ensured.
Compared with the conventional prefabricated part, the prefabricated part has the advantages that: the die sinking and pouring processes in the production process are eliminated, the production cost is saved, and the production period is shortened; the self weight is lighter than that of a prefabricated vertical component, the transportation amount of a single vehicle is increased, and the transportation cost is saved; the self weight is lighter than that of a prefabricated vertical member, no special requirement is imposed on the load of the tower crane, and the hoisting cost is saved; the connection of the steel bars can still follow the connection mode of a cast-in-place system, such as mechanical connection, binding connection, welding connection and the like, and the connection is reliable; the time for dismounting, mounting and turnover of the template in the construction stage is saved, the construction progress is accelerated, and the requirement of high flatness is met.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides an assembled prefabricated combination stair part which characterized in that: the steel bar product assembling and disassembling device comprises a high-precision disassembling-free template (1), an assembling-forming steel bar product, n-shaped steel bars (6), L-shaped steel bars (7) and connecting screws (8), wherein the two groups of high-precision disassembling-free templates (1) are positioned on the upper side and the lower side of the assembling-forming steel bar product, the high-precision disassembling-free template (1) positioned below is obliquely placed in a plane, the n-shaped steel bars (6) and the napped surface of the high-precision disassembling-free template (1) below are fixed through the connecting screws (8), and the opening side of the n-shaped steel bars (6) is connected with the bottom of the assembling-forming steel bar product; the high-precision disassembly-free templates (1) positioned above are matched with each other two by two to be lapped into stair steps, the L-shaped steels (7) are arranged on the inner sides of the corners of any two adjacent high-precision disassembly-free templates (1) and are fixed through the connecting screws (8), the stair steps above are partially horizontal, the high-precision disassembly-free templates (1) are prefabricated in factories and are not installed, a post-cast concrete feeding port is reserved, and the L-shaped steels (7) are positioned and connected through the connecting screws (8) after the hoisting is completed and the pouring construction is carried out; the side symmetry of combination shaping reinforcing bar goods is provided with two sets of high accuracy exempt from to tear open template (1), and the high accuracy of both sides exempt from to tear open the template and upper and lower two sets of high accuracy exempt from to tear open the template and pass through L shaped steel (7) and connecting screw (8) and be connected the combination and form the cavity together, concreting solidifies into the stair in the cavity.
2. The fabricated prefabricated modular stair component of claim 1, wherein: the combined forming steel bar product comprises an upper stress bar (2), a lower stress bar (3), an edge longitudinal bar (5) and steel bar diagonal draw bars (4), wherein the upper stress bar (2) and the lower stress bar (3) are mutually perpendicular and are connected in a net shape to form an upper steel bar net piece and a lower steel bar net piece, and the upper steel bar net piece and the lower steel bar net piece are connected together through a plurality of steel bar diagonal draw bars (4) which are arranged in a cross way; the edge longitudinal bars (5) are symmetrically arranged and connected to two long edges of the upper reinforcing mesh sheet and the lower reinforcing mesh sheet.
3. The fabricated prefabricated modular stair component of claim 2, wherein: and the upper stress rib (2), the lower stress rib (3) and the rib diagonal draw bar (4) are adjacently bonded together or welded together to form a reinforcement cage, and the reinforcement cage is connected with the edge longitudinal rib (5) to form the combined molded reinforcement product.
4. The fabricated prefabricated modular stair component of claim 2, wherein: the plurality of the n-shaped steel sections (6) are arranged at equal intervals and abut against the lower part of the combined and formed steel bar product, the opening sides of the n-shaped steel sections (6) are connected with the lower stress bars (3) at the lower part, and the sealing sides of the n-shaped steel sections (6) are connected with the high-precision non-dismantling template (1) at the bottom through screws (8).
5. The fabricated prefabricated modular stair component of claim 1, wherein: the upper stair step formed by the high-precision disassembly-free template (1), the inclined supporting plate at the bottom and the vertical intersection of the side baffle are connected by L-shaped steel (7) and connecting screws (8), and the high-precision disassembly-free template at the step position is prefabricated by a factory.
6. The fabricated prefabricated modular stair component of claim 1, wherein: the connecting screw is a countersunk self-tapping screw, and the nut of the countersunk self-tapping screw is brushed with antirust paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020116482.8U CN211622347U (en) | 2020-01-18 | 2020-01-18 | Prefabricated combination stair part of assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020116482.8U CN211622347U (en) | 2020-01-18 | 2020-01-18 | Prefabricated combination stair part of assembled |
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| Publication Number | Publication Date |
|---|---|
| CN211622347U true CN211622347U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020116482.8U Active CN211622347U (en) | 2020-01-18 | 2020-01-18 | Prefabricated combination stair part of assembled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211622347U (en) |
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2020
- 2020-01-18 CN CN202020116482.8U patent/CN211622347U/en active Active
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