CN204282684U - A kind of concrete staircase - Google Patents
A kind of concrete staircase Download PDFInfo
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- CN204282684U CN204282684U CN201420776296.1U CN201420776296U CN204282684U CN 204282684 U CN204282684 U CN 204282684U CN 201420776296 U CN201420776296 U CN 201420776296U CN 204282684 U CN204282684 U CN 204282684U
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Abstract
The utility model relates to building unit field, specifically a kind of concrete staircase, and comprise precast stair plate, cast-in-place upper strata landing, cast-in-place lower floor landing, cast-in-place upper strata ladder beam and cast-in-place lower floor ladder beam, precast stair plate is provided with marks time; Cast-in-place upper strata landing and cast-in-place upper strata ladder beam are built and are integrated, cast-in-place lower floor landing and cast-in-place lower floor ladder beam are built and are integrated, the upper end of precast stair plate is fixedly connected with cast-in-place upper strata ladder beam, and the lower end of precast stair plate is fixedly connected with cast-in-place lower floor terraced beam; The lifting that precast stair plate is provided with multiple horizontally set is held concurrently pouring hole, precast stair plate laterally installs polylith side by side, each lifting in same level direction pouring hole of holding concurrently is communicated with as a whole lifting and holds concurrently pouring hole, and reinforcing bar is integrated through hold concurrently pouring hole being built by cementing agent and precast stair plate of the lifting of this entirety.The utility model makes the transport of precast stair plate, lifting and installation more efficient and convenient.
Description
Technical field
The utility model relates to building unit field, specifically a kind of concrete staircase.
Background technology
Stair are one of very important structural element in Residential structure, primarily of stair tread and landing composition, wherein, stair tread is divided into Cast-in-situs type and prefabricated two kinds, cast-in-situ stair plate can give full play to the plasticity of steel concrete, structural integrity is good, widely applicable, but there is formwork difficulty, expend larger, from shortcomings such as great and long construction periods, and precast stair plate first makes owing to adopting the production method being transported to job site again and carrying out installing, there is construction simple, cost is low, the advantages such as short construction period, but, weight due to prefabricated stair tread is large and do not have special Hoisting Position, cause the transport of prefabricated stair tread, lifting and installation difficulty.Chinese patent application with the immediate prior art of present patent application to be publication number be CN104153528A, it discloses a kind of precast hollow stair, and for transport and install and alleviate weight, the hoisting device of setting makes the handling of stair more for convenience.But the weight of the hollow stair of this integrated precast is still heavier, especially when the situation that the width running into stair is larger, the weight of stair is very large, and volume is also comparatively large, is inconvenient to transport and lift.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of by the rational precast stair plate of width dimensions, by laterally assembling the technical scheme of the fixing concrete staircase formed.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of concrete staircase, comprise precast stair plate, cast-in-place upper strata landing, cast-in-place lower floor landing, cast-in-place upper strata ladder beam and cast-in-place lower floor ladder beam, described precast stair plate is provided with marks time; Described cast-in-place upper strata landing and cast-in-place upper strata ladder beam are built and are integrated, cast-in-place lower floor landing and cast-in-place lower floor ladder beam are built and are integrated, the upper end of described precast stair plate is fixedly connected with cast-in-place upper strata ladder beam, and the lower end of precast stair plate is fixedly connected with cast-in-place lower floor terraced beam; The lifting that precast stair plate is provided with multiple horizontally set is held concurrently pouring hole, described precast stair plate laterally installs polylith side by side, each lifting in same level direction pouring hole of holding concurrently is communicated with as a whole lifting and holds concurrently pouring hole, and reinforcing bar is integrated through hold concurrently pouring hole being built by cementing agent and precast stair plate of overall lifting.
The technical solution of the utility model also has: on every block precast stair plate, be provided with three double pouring holes of lifting, be separately positioned on the upper, middle and lower of precast stair plate.
The technical solution of the utility model also has: described cast-in-place upper strata ladder beam is provided with the groove I of L shape, described groove I surface is embedded with pressure-bearing junction steel plate I, the upper end of described precast stair plate is provided with the projection I coordinated with groove I, described projection I surface is embedded with pressure-bearing junction steel plate II, and described projection I is positioned at groove I and pressure-bearing junction steel plate I and pressure-bearing junction steel plate II are welded to connect; Described cast-in-place lower floor ladder beam is provided with the groove II of L shape, described groove II surface is embedded with pressure-bearing junction steel plate III, the lower end of described precast stair plate is provided with the projection II coordinated with groove II, described projection II surface is embedded with pressure-bearing junction steel plate IV, and described projection II is positioned at groove II and pressure-bearing junction steel plate III and pressure-bearing junction steel plate IV are welded to connect.First pressure-bearing junction plate I, II, III and IV serves the effect of pressure-bearing, prevent groove I, projection I, groove II or projection II from damaging because bearing weight, secondly the effect be connected and fixed also is served, therefore, adopt the technical program, precast stair plate and the firm and stable connection of cast-in-place terraced beam can be made.
The technical solution of the utility model also has: described in mark time in be provided with the loss of weight through hole of horizontally set.Adopt the technical program, the weight of precast stair plate can be alleviated.
The technical solution of the utility model also has: the cross section of described loss of weight through hole is the similar triangles in cross section of marking time.Triangle is the most stable shape, adopts the technical program, can ensure the bearing strength of marking time.
The technical solution of the utility model also has: described in mark time and be provided with reeding mounting groove.
The technical solution of the utility model also has: the width of described precast stair plate is 300 millimeters or 600 millimeters.300 millimeters and 600 millimeters is construction module, adopt the technical program, precast stair plate and cast-in-place upper strata ladder beam and cast-in-place lower floor ladder beam can be made to install coincide, precast stair plate has interchangeability, is beneficial to the suitability for industrialized production of precast stair plate and the prefabricated construction of concrete staircase.
Relative to prior art, the beneficial effect of the utility model concrete staircase is: by little for polylith size, lightweight precast stair plate by laterally assembling the large-scale stair tread of composition one piece, the difficulty reducing the transport of precast stair plate, lifting and install, in addition, when hoisting prefabricated stair tread, chain sling can be held concurrently pouring hole through lifting, make the very convenient and safety of the lifting of precast stair plate, improve efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model concrete staircase.
Fig. 2 is the partial enlarged drawing in Figure 1A portion.
Fig. 3 is the partial enlarged drawing in Figure 1B portion.
Fig. 4 is the structural representation of the utility model precast stair plate.
In figure: 1, precast stair plate, 1-1, to mark time, 1-2, lifting are held concurrently pouring hole, 1-3, projection I, 1-4, pressure-bearing junction steel plate II, 1-5, projection II, 1-6, pressure-bearing junction steel plate IV, 1-7, loss of weight through hole, 1-8, reeding mounting groove, 2, cast-in-place upper strata landing, 3, cast-in-place lower floor landing, 4, cast-in-place upper strata ladder beam, 4-1, pressure-bearing junction steel plate I, 5, cast-in-place lower floor ladder beam, 5-1, pressure-bearing junction steel plate III.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model detailed description of the invention is described further below.
As Figure 1-Figure 4: a kind of concrete staircase, precast stair plate 1, cast-in-place upper strata landing 2, cast-in-place lower floor landing 3, cast-in-place upper strata ladder beam 4 and cast-in-place lower floor ladder beam 5 is comprised; The width of described precast stair plate 1 is 300 millimeters, precast stair plate 1 is provided with the 1-1 that marks time, be provided with the loss of weight through hole 1-7 of horizontally set in the described 1-1 of marking time, the cross section of described loss of weight through hole 1-7 is the similar triangles in 1-1 cross section of marking time, described in the 1-1 that marks time be provided with reeding mounting groove 1-8; Described cast-in-place upper strata landing 2 is built with cast-in-place upper strata ladder beam 4 and is integrated, and cast-in-place lower floor landing 3 and cast-in-place lower floor ladder beam 5 are built and be integrated; Described cast-in-place upper strata ladder beam 4 is provided with the groove I of L shape, described groove I surface is embedded with pressure-bearing junction steel plate I 4-1, the upper end of described precast stair plate 1 is provided with projection I 1-3 coordinated with groove I, described projection I 1-3 surface is embedded with pressure-bearing junction steel plate II 1-4, and described projection I 1-3 is positioned at groove I and pressure-bearing junction steel plate I 4-1 and pressure-bearing junction steel plate II 1-4 is welded to connect; Described cast-in-place lower floor ladder beam 5 is provided with the groove II of L shape, described groove II surface is embedded with pressure-bearing junction steel plate III 5-1, the lower end of described precast stair plate 1 is provided with projection II 1-5 coordinated with groove II, described projection II 1-5 surface is embedded with pressure-bearing junction steel plate IV 1-6, and described projection II 1-5 is positioned at groove II and pressure-bearing junction steel plate III 5-1 and pressure-bearing junction steel plate IV 1-6 is welded to connect.First pressure-bearing junction plate I 4-1, II 1-4, III 5-1 and IV 1-6 serve the effect of load-bearing, prevent groove I, projection I 1-3, groove II or projection II 1-5 from damaging because bearing weight, secondly the effect be connected and fixed also is served, therefore, adopt the technical program, the connection that precast stair plate 1 and cast-in-place terraced beam are firm and stable can be made.
The lifting that precast stair plate 1 is provided with three horizontally sets is held concurrently pouring hole 1-2, is separately positioned on the upper, middle and lower of precast stair plate 1; Described precast stair plate 1 is laterally provided with three side by side, and three liftings in same level direction pouring hole 1-2 that holds concurrently is communicated with as a whole lifting and holds concurrently pouring hole, and reinforcing bar is integrated through hold concurrently pouring hole being built by cementing agent and precast stair plate 1 of the lifting of this entirety.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (7)
1. a concrete staircase, comprise precast stair plate (1), cast-in-place upper strata landing (2), cast-in-place lower floor landing (3), cast-in-place upper strata ladder beam (4) and cast-in-place lower floor ladder beam (5), described precast stair plate (1) is provided with mark time (1-1), described cast-in-place upper strata landing (2) is built with cast-in-place upper strata ladder beam (4) and is integrated, cast-in-place lower floor landing (3) builds with cast-in-place lower floor's ladder beam (5) and is integrated, the upper end of described precast stair plate (1) is fixedly connected with cast-in-place upper strata ladder beam (4), the lower end of precast stair plate (1) is fixedly connected with cast-in-place lower floor's ladder beam (5), it is characterized in that: the lifting being provided with multiple horizontally set on precast stair plate (1) is held concurrently pouring hole (1-2), described precast stair plate (1) laterally installs polylith side by side, each lifting in same level direction pouring hole (1-2) of holding concurrently is communicated with as a whole lifting and holds concurrently pouring hole, reinforcing bar is integrated through hold concurrently pouring hole being built by cementing agent and precast stair plate (1) of overall lifting.
2. concrete staircase according to claim 1, is characterized in that: on every block precast stair plate (1), be provided with three double pouring holes (1-2) of lifting, be separately positioned on the upper, middle and lower of precast stair plate (1).
3. concrete staircase according to claim 1, it is characterized in that: described cast-in-place upper strata ladder beam (4) is provided with the groove I of L shape, described groove I surface is embedded with pressure-bearing junction steel plate I (4-1), the upper end of described precast stair plate (1) is provided with the projection I (1-3) coordinated with groove I, described projection I (1-3) surface is embedded with pressure-bearing junction steel plate II (1-4), and described projection I (1-3) is positioned at groove I and pressure-bearing junction steel plate I (4-1) and pressure-bearing junction steel plate II (1-4) are welded to connect; Described cast-in-place lower floor's ladder beam (5) is provided with the groove II of L shape, described groove II surface is embedded with pressure-bearing junction steel plate III (5-1), the lower end of described precast stair plate (1) is provided with the projection II (1-5) coordinated with groove II, described projection II (1-5) surface is embedded with pressure-bearing junction steel plate IV (1-6), and described projection II (1-5) is positioned at groove II and pressure-bearing junction steel plate III (5-1) and pressure-bearing junction steel plate IV (1-6) are welded to connect.
4., according to the arbitrary described concrete staircase of claim 1-3, it is characterized in that: described in mark time and be provided with the loss of weight through hole (1-7) of horizontally set in (1-1).
5. concrete staircase according to claim 4, is characterized in that: the similar triangles that the cross section of described loss of weight through hole (1-7) is (1-1) cross section of marking time.
6., according to the arbitrary described concrete staircase of claim 1-3, it is characterized in that: described in mark time (1-1) be provided with reeding mounting groove (1-8).
7., according to the arbitrary described concrete staircase of claim 1-3, it is characterized in that: the width of described precast stair plate (1) is 300 millimeters or 600 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776296.1U CN204282684U (en) | 2014-12-11 | 2014-12-11 | A kind of concrete staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776296.1U CN204282684U (en) | 2014-12-11 | 2014-12-11 | A kind of concrete staircase |
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| Publication Number | Publication Date |
|---|---|
| CN204282684U true CN204282684U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420776296.1U Active CN204282684U (en) | 2014-12-11 | 2014-12-11 | A kind of concrete staircase |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152808A (en) * | 2020-12-30 | 2021-07-23 | 浙江三一筑工科技有限公司 | Ready-package prefabricated staircase |
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2014
- 2014-12-11 CN CN201420776296.1U patent/CN204282684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152808A (en) * | 2020-12-30 | 2021-07-23 | 浙江三一筑工科技有限公司 | Ready-package prefabricated staircase |
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