CN204609154U - The hollow stair system of a kind of prefabricated assembling type reinforced concrete - Google Patents
The hollow stair system of a kind of prefabricated assembling type reinforced concrete Download PDFInfo
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- CN204609154U CN204609154U CN201520182767.0U CN201520182767U CN204609154U CN 204609154 U CN204609154 U CN 204609154U CN 201520182767 U CN201520182767 U CN 201520182767U CN 204609154 U CN204609154 U CN 204609154U
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Abstract
The utility model discloses the hollow stair system of a kind of prefabricated assembling type reinforced concrete, be characterized in, comprise the hollow stair of prefabricated assembling type reinforced concrete, grafting reinforcing bar (10), grout material (11), beam (12); Adopt in factory, be prefabricated into stair tread, marking time is hollow finished product reinforced concrete stairs, alleviates the weight of precast stair, the stair construction technology of direct hoisted in position during construction; Make reinforced concrete stairs primary concreting in factory shaping, structured size, presentation quality are excellent, lightweight, lifting machine limits few, can directly come into operation after lifting, avoid cast-in-situ steel reinforced concrete stair construction formwork complexity, costly, structure curing time is grown, needed shortcoming such as secondary construction architectural surface, difficult quality guarantee etc., is a significant improvement to construction work reinforced concrete stairs construction technology.
Description
Technical field:
The utility model relates to building walking reinforced concrete stairs technical field, and the hollow stair system of a kind of prefabricated assembling type reinforced concrete specifically, for manufacture, the construction of building reinforced concrete stairs.
Background technology:
Along with the development of real estate, construction market, construction work site operation quality is restive, the drawback of skilled worker day by day shortage, many, long in time limit, the high in cost of production of wet trade etc. more and more displays, and building products industrialization, industrialization are more and more paid attention to.
Existing building iron concrete staircase is site operation, and construction technology mainly comprises and installs template, assembling reinforcement, concreting, finished product protection, dismounting template, decoration of plastering.Due to the complexity of reinforced concrete stairs shape, cause needing high-caliber form fixer to carry out formwork erection, but still not easily carry out; Because personnel during construction pass through up and down, be subject to after causing reinforcing bar binding well trample destruction, displacement, the forced position that reinforcing bar is correct can not be ensured; Due to complex-shaped, concreting is wayward, and because template is not easily propped up, after causing concreting, scale error is larger; Because concrete needs long period maintenance, form bracing system can not be removed as early as possible, causes lower channel not smooth, affects efficiency of construction; Because scale error after concreting is comparatively large, needs to carry out the construction of secondary decorative cover, and easily cause the quality drawbacks such as hollowing, cracking, arrisdefect; Due to above problems, cause the construction period long, with high costs.
Utility model content:
The purpose of this utility model is the deficiency overcoming above-mentioned prior art, and provide a kind of prefabricated assembling type reinforced concrete hollow stairway art system, mainly solve existing cast-in-situ steel reinforced concrete stair construction formwork complexity, structure curing time length, need secondary construction architectural surface, difficult quality guarantee, high cost problem.
The technical solution of the utility model is: the hollow stair system of a kind of prefabricated assembling type reinforced concrete, and its special character is, comprises the hollow stair of prefabricated assembling type reinforced concrete, grafting reinforcing bar, grout material, beam;
The hollow stair of described prefabricated assembling type reinforced concrete comprise stair tread, reinforcing bar, gangboard hole, mark time, hole of marking time, upper connection end, upper end connecting hole, lower connection end, hoisting ring; Reinforcing bar is had in the middle of described stair tread, there is through gangboard hole stair tread inside, stair tread is evenly arranged and marks time, there is through hole of marking time each inside of marking time, the two ends up and down of stair tread are respectively connection end and lower connection end, upper connection end there is upper end connecting hole, on marking time, have four hoisting rings;
The hollow stair of described prefabricated assembling type reinforced concrete and grafting reinforcing bar, grout material, beam define bottom prefabricated assembling type reinforced concrete hollow stair top and concrete structure connecting structure, the hollow stair of prefabricated assembling type reinforced concrete with concrete structure connecting structure;
Described prefabricated assembling type reinforced concrete hollow stair top and concrete structure connecting structure comprise L-type breach landing beam, grafting reinforcing bar, upper connection end, upper end connecting hole, grout material, joint sealing material; Described upper connection end is placed on L-type breach landing beam, and joint sealing material is inserted in the gap between the two side joint face, injects grout material in upper end connecting hole, and grafting reinforcing bar inserts L-type breach landing beam downwards, upwards inserts in the grout material of upper end connecting hole;
L-type breach landing beam, beam, lower connection end, joint sealing material is comprised with concrete structure connecting structure bottom the hollow stair of described prefabricated assembling type reinforced concrete; Described lower connection end is placed on L-type breach landing beam, and between the two side joint face, joint sealing material is inserted in gap, establishes beam below lower connection end and between L-type breach landing beam breach;
Described grafting reinforcing bar is in the hollow stair top of prefabricated assembling type reinforced concrete and concrete structure connecting structure, inserts L-type breach landing beam downwards, upwards inserts the bar dowel of upper end connecting hole;
Described grout material is inject the slurry that upper end connecting hole bonds grafting reinforcing bar;
Described beam be bottom the hollow stair of prefabricated assembling type reinforced concrete be shelved on L-type breach landing beam breach in concrete structure connecting structure, support the hollow stair of prefabricated assembling type reinforced concrete under the rigid plastics pad of connection end.
The feature of the hollow stair system of prefabricated assembling type reinforced concrete of the present utility model is, in factory, use accurate mould to produce reinforced concrete hollow stair, primary concreting is shaping, and structured size, presentation quality are excellent; According to the structure stress principle of Reinforced Concrete Plate Stairs, non-stress part is made hollow structure, alleviate the weight of precast stair, lifting machine restriction is few, and existing common construction hoisting machinery is all capable of hoisting dynamic, need not increase lifting machine and drop into; Can directly come into operation after lifting, avoiding cast-in-situ steel reinforced concrete stair construction formwork complexity, structure curing time length, need secondary construction architectural surface, difficult quality guarantee, high cost shortcoming, is a significant improvement to construction work reinforced concrete stairs construction technology.
Compared with the prior art a kind of prefabricated assembling type reinforced concrete described in the utility model hollow stair system has following good effect: 1, creatively adopt hollow-core construction, alleviate the weight of precast stair, lifting machine restriction is few, existing common construction hoisting machinery is all capable of hoisting dynamic, need not increase lifting machine and drop into; 2, use accurate template prefabricated in factory, primary concreting is shaping, and structured size, presentation quality are excellent, and workmanship easily ensures; 3, can directly come into operation after lifting, avoid the shortcoming that cast-in-situ steel reinforced concrete stair construction formwork is complicated, structure curing time is long, structure maintenance and secondary architectural surface construction period are zero, save the duration; 4, do not need secondary construction architectural surface, avoid the quality drawbacks such as hollowing, cracking, arrisdefect; 5, prefabricated in factory, with low cost, reduce the construction costs of reinforced concrete stairs; 6, prefabricated in factory, reduce situ wet workload, reduce construction pollution.
Accompanying drawing illustrates:
Fig. 1 is the hollow staircase structure schematic diagram of prefabricated assembling type reinforced concrete of the present utility model;
Fig. 1 a is the hollow stair front elevation view of prefabricated assembling type reinforced concrete of the present utility model;
Fig. 1 b is the hollow stair horizontal projection of prefabricated assembling type reinforced concrete of the present utility model;
Fig. 2 is the schematic diagram of beam of the present utility model;
Fig. 3 is the hollow stair top of prefabricated assembling type reinforced concrete of the present utility model and concrete structure connecting structure;
Fig. 4 is the hollow stair base portion of prefabricated assembling type reinforced concrete of the present utility model and concrete structure connecting structure.
Wherein: 1 stair tread 2 reinforcing bar 3 gangboard hole 4 is marked time and 5 to be marked time connection end 7 upper end connecting hole 8 times connection end 9 hoisting ring 10 grafting reinforcing bar 11 grout material 12 beam 13 L-type breach landing beam 14 joint sealing materials on hole 6.
Detailed description of the invention:
In order to Comprehension and Implementation better, provide specific embodiment below in conjunction with accompanying drawing and describe the utility model in detail; Illustrated embodiment, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment: see Fig. 1, Fig. 1 a, Fig. 1 b, Fig. 2, Fig. 3, Fig. 4, according to concrete Building Engineering Design drawing, in factory, produce the hollow stair of prefabricated assembling type reinforced concrete and beam 12, the hollow stair of prefabricated assembling type reinforced concrete comprise stair tread 1, reinforcing bar 2, gangboard hole 3, mark time 4, hole 5 of marking time, upper connection end 6, upper end connecting hole 7, lower connection end 8, hoisting ring 9; Reinforcing bar 2 is had in the middle of stair tread 1, there is through gangboard hole 3 stair tread 1 inside, stair tread 1 is evenly arranged and marks time 4, each mark time 4 inside have through hole 5 of marking time, the two ends up and down of stair tread 1 are respectively connection end 6 and lower connection end 8, upper connection end 6 there is upper end connecting hole 7, marks time on 4 and have four hoisting rings 9; Beam 12 for bottom the hollow stair of prefabricated assembling type reinforced concrete be shelved on L-type breach landing beam 13 breach in concrete structure connecting structure, support the rigid plastics pad of connection end 8 under the hollow stair of prefabricated assembling type reinforced concrete; Then hollow for prefabricated assembling type reinforced concrete stair and beam 12 are transported to job site; After upper and lower side L-type breach landing beam 13 has been constructed, beam 12 is placed on the L-type breach of lower end L-type breach landing beam 13, grafting reinforcing bar 10 has been inserted on the breach of upper end L-type breach landing beam 13, be positioned at the center of upper end connecting hole 7; Use tower crane, lifting rope hang hoisting ring 9 and are sling by hollow for prefabricated assembling type reinforced concrete stair, upper connection end 6 is placed on the breach of upper end L-type breach landing beam 13, and make upper end connecting hole 7 be inserted in grafting reinforcing bar 10, lower connection end 8 is placed on the L-type breach of lower end L-type breach landing beam 13, push down beam 12, grout material 11 is used to inject upper end connecting hole 7, bond grafting reinforcing bar 10, the hollow stair upper end of prefabricated assembling type reinforced concrete is firmly connected with concrete structure; Use joint sealing material 14 to clog completely to go up connection end 6 and upper end L-type breach landing beam 13, gap between lower connection end 8 and lower end L-type breach landing beam 13; Slice off hoisting ring 9, form the hollow stair system of complete prefabricated assembling type reinforced concrete, can come into operation.
Claims (1)
1. the hollow stair system of prefabricated assembling type reinforced concrete, is characterized in that, comprises the hollow stair of prefabricated assembling type reinforced concrete, grafting reinforcing bar (10), grout material (11), beam (12);
The hollow stair of described prefabricated assembling type reinforced concrete comprise stair tread (1), reinforcing bar (2), gangboard hole (3), mark time (4), hole of marking time (5), upper connection end (6), upper end connecting hole (7), lower connection end (8), hoisting ring (9); Reinforcing bar (2) is had in the middle of described stair tread (1), there is through gangboard hole (3) stair tread (1) inside, (1) is evenly arranged mark time (4) stair tread, there is through hole of marking time (5) each inside of marking time (4), the two ends up and down of stair tread (1) are respectively connection end (6) and lower connection end (8), upper connection end (6) there is upper end connecting hole (7), mark time (4) have four hoisting rings (9);
The hollow stair of described prefabricated assembling type reinforced concrete and grafting reinforcing bar (10), grout material (11), beam (12) define bottom prefabricated assembling type reinforced concrete hollow stair top and concrete structure connecting structure, the hollow stair of prefabricated assembling type reinforced concrete with concrete structure connecting structure;
Described prefabricated assembling type reinforced concrete hollow stair top and concrete structure connecting structure comprise L-type breach landing beam (13), grafting reinforcing bar (10), upper connection end (6), upper end connecting hole (7), grout material (11), joint sealing material (14); Described upper connection end (6) is placed on L-type breach landing beam (13), joint sealing material (14) is inserted in gap between the two side joint face, inject grout material (11) in upper end connecting hole (7), grafting reinforcing bar (10) inserts L-type breach landing beam (13) downwards, upwards inserts in the grout material (11) of upper end connecting hole (7);
L-type breach landing beam (13), beam (12), lower connection end (8), joint sealing material (14) is comprised with concrete structure connecting structure bottom the hollow stair of described prefabricated assembling type reinforced concrete; Described lower connection end (8) is placed on L-type breach landing beam (13), and between the two side joint face, joint sealing material (14) is inserted in gap, and lower connection end (8) establishes beam (12) below and between L-type breach landing beam (13) breach;
Described grafting reinforcing bar (10) is for inserting L-type breach landing beam (13) in the hollow stair top of prefabricated assembling type reinforced concrete and concrete structure connecting structure, downwards, upwards inserting the bar dowel of upper end connecting hole (7);
Described grout material (11) is inject the slurry that upper end connecting hole (7) bonds grafting reinforcing bar (10);
Described beam (12) for bottom the hollow stair of prefabricated assembling type reinforced concrete be shelved on L-type breach landing beam (13) breach in concrete structure connecting structure, support the hollow stair of prefabricated assembling type reinforced concrete under the rigid plastics pad of connection end (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182767.0U CN204609154U (en) | 2015-03-30 | 2015-03-30 | The hollow stair system of a kind of prefabricated assembling type reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182767.0U CN204609154U (en) | 2015-03-30 | 2015-03-30 | The hollow stair system of a kind of prefabricated assembling type reinforced concrete |
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| CN204609154U true CN204609154U (en) | 2015-09-02 |
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| CN201520182767.0U Expired - Fee Related CN204609154U (en) | 2015-03-30 | 2015-03-30 | The hollow stair system of a kind of prefabricated assembling type reinforced concrete |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317180A (en) * | 2015-12-02 | 2016-02-10 | 重庆建工第九建设有限公司 | Semi-assembly stair with prefabricated steps |
| CN107759170A (en) * | 2017-10-25 | 2018-03-06 | 天津工业化建筑有限公司 | A kind of prefabricated hollow stair of light ceramsite concrete and preparation method |
| CN109113283A (en) * | 2018-10-30 | 2019-01-01 | 山东连云山建筑科技有限公司 | A kind of precast rc slab formula stair |
| CN109653455A (en) * | 2019-01-17 | 2019-04-19 | 江西联保工程咨询有限公司 | A kind of hollow stair and preparation method thereof of limited destructing preformed rigid connection structure |
| CN112049237A (en) * | 2020-09-04 | 2020-12-08 | 珠海华章工程管理咨询有限公司 | Vertical penetration construction method for high-rise building |
| CN112663883A (en) * | 2020-12-22 | 2021-04-16 | 浙江省建筑设计研究院 | Prefabricated staircase with pore channels and installation method thereof |
| CN115478656A (en) * | 2022-09-15 | 2022-12-16 | 中国建筑设计研究院有限公司 | Assembled type laminated concrete slab type stair and production method |
-
2015
- 2015-03-30 CN CN201520182767.0U patent/CN204609154U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317180A (en) * | 2015-12-02 | 2016-02-10 | 重庆建工第九建设有限公司 | Semi-assembly stair with prefabricated steps |
| CN107759170A (en) * | 2017-10-25 | 2018-03-06 | 天津工业化建筑有限公司 | A kind of prefabricated hollow stair of light ceramsite concrete and preparation method |
| CN109113283A (en) * | 2018-10-30 | 2019-01-01 | 山东连云山建筑科技有限公司 | A kind of precast rc slab formula stair |
| CN109653455A (en) * | 2019-01-17 | 2019-04-19 | 江西联保工程咨询有限公司 | A kind of hollow stair and preparation method thereof of limited destructing preformed rigid connection structure |
| CN109653455B (en) * | 2019-01-17 | 2024-03-29 | 江西联保工程咨询有限公司 | Hollow stair with limited deconstructed prefabricated rigid connection structure and preparation method thereof |
| CN112049237A (en) * | 2020-09-04 | 2020-12-08 | 珠海华章工程管理咨询有限公司 | Vertical penetration construction method for high-rise building |
| CN112049237B (en) * | 2020-09-04 | 2021-11-05 | 珠海华章工程管理咨询有限公司 | Vertical penetration construction method for high-rise building |
| CN112663883A (en) * | 2020-12-22 | 2021-04-16 | 浙江省建筑设计研究院 | Prefabricated staircase with pore channels and installation method thereof |
| CN115478656A (en) * | 2022-09-15 | 2022-12-16 | 中国建筑设计研究院有限公司 | Assembled type laminated concrete slab type stair and production method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20170330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |