CN204626812U - A kind of anti-seismic concrete stair - Google Patents
A kind of anti-seismic concrete stair Download PDFInfo
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- CN204626812U CN204626812U CN201520238065.XU CN201520238065U CN204626812U CN 204626812 U CN204626812 U CN 204626812U CN 201520238065 U CN201520238065 U CN 201520238065U CN 204626812 U CN204626812 U CN 204626812U
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- stair
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- aseismatic bearing
- reinforced concrete
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Abstract
A kind of anti-seismic concrete stair, belong to building field, and it comprises the reinforced concrete stairs of some compositions of marking time, and it is characterized in that connecting by being connected bridging piece, polyphenyl plate and aseismatic bearing between reinforced concrete stairs with constructure body structure; The landing plate of described connection bridging piece and constructure body structure connects as one, and the base of aseismatic bearing is embedded in and connects in bridging piece.The utility model can discharge seismic forces, reduces seismic forces to the destruction of stair, reduces stair self earthquake.
Description
Technical field
The utility model belongs to building facilities field, is specifically related to a kind of anti-seismic concrete stair.
Background technology
As everyone knows, stair are indispensable building facilities in high-rise building.In recent years, earthquake disaster takes place frequently.In order to antidetonation, country puts into effect a series of earthquake proof construction standard.Stair should have good anti-seismic performance, can play the function of life passage when earthquake.Current cast-in-situ steel reinforced concrete stair are that staristep, platform and landing beam cast in situs are become an entirety, its good integrity, and agent structure is comparatively large to the adverse effect of stair, once agent structure is subject to the destruction of seismic forces, stair are also damaged unavoidably.
Summary of the invention
In order to improve the anti-seismic performance of stair, reduce reinforced concrete stairs to the impact of the seismic forces of main frame structure, the utility model provides a kind of anti-seismic concrete stair.
A kind of anti-seismic concrete stair, comprise the reinforced concrete stairs of some compositions of marking time, and it is characterized in that connecting by being connected bridging piece, polyphenyl plate and aseismatic bearing between reinforced concrete stairs with constructure body structure; The landing plate of described connection bridging piece and constructure body structure connects as one, and the base of aseismatic bearing is embedded in and connects in bridging piece;
Described aseismatic bearing be arranged on stair step original position and second floor ladder landing slab and first floor ladder rung original position between;
Described aseismatic bearing is made up of lower seat and the upper plate be arranged in lower seat, and lower seat is U-shaped steel plate, and upper plate is rectangle steel plate, and upper plate is arranged in the U-lag of lower seat; Be provided with graphite bisque between seat and upper plate down;
Landing plate and reinforced concrete stairs are provided with the gap of 5mm between marking time, be filled with polyphenyl plate in this gap;
The length of described aseismatic bearing is identical with stair length; The width of aseismatic bearing is identical with tread run;
Upper plate is linked together by two row's flat head screws and reinforced concrete stairs; Distance between adjacent two flat head screws is 200mm.
From construction theory, there is the restraint forces perpendicular to installed surface in aseismatic bearing of the present utility model, and the direction being parallel to installed surface does not exist restraint forces.For component genus a large amount of in concrete component is rigidly connected, it is similar to hinged, does not substantially transmit moment of flexure, and greatly reduce the impact of the stiffness of structural member such as stair on structure, it is of great benefit to for structural seismic.
The utility model arranges aseismatic bearing, can discharge seismic forces, reduces seismic forces to the destruction of stair, reduces stair self earthquake; Reduce stair gangboard as the impact of diagonal supporting member on agent structure.
Accompanying drawing explanation
Fig. 1 is staircase structure schematic diagram of the present utility model.
Fig. 2 is the structure chart of the utility model stair Nodes.
Fig. 3 is the structure chart of aseismatic bearing in the utility model.
Fig. 4 connects structure chart precast reinforced in bridging piece in the utility model.
In figure, 1, aseismatic bearing, 2, second floor ladder, 3, landing plate, 4, first floor ladder, 5, connect bridging piece, 6, upper plate, 7, base, 8, polyphenyl plate, 9, upper reinforcing bar, 10, lower reinforcing bar, 11, left reinforcing bar, 12, right reinforcing bar, 13, long reinforcing bar.
Detailed description of the invention
Shown in Fig. 1, a kind of anti-seismic concrete stair, comprise the reinforced concrete stairs of some compositions of marking time, reinforced concrete stairs comprises second floor ladder 2, first floor ladder 4, connects between reinforced concrete stairs with constructure body structure by being connected bridging piece 5, polyphenyl plate 8 and aseismatic bearing 1;
Described connection bridging piece 5 connects as one with the landing plate 3 of constructure body structure, and the base 7 of aseismatic bearing 1 is embedded in and connects in bridging piece 5;
Precast reinforced in described connection bridging piece 5, wherein the spacing of upper and lower two platoon leader's reinforcing bars is 200mm, often row arranges 4 long reinforcing bars 13, the spacing of adjacent two long reinforcing bars 13 is 200mm, and upper and lower two platoon leader's reinforcing bars are fixed together by the upper reinforcing bar 9 of some equidistant arrangements, lower reinforcing bar 10, left reinforcing bar 11, right reinforcing bar 12 binding.
Described aseismatic bearing 1 be arranged on stair step original position and second floor ladder landing slab and first floor ladder rung original position between;
Described aseismatic bearing 1 is made up of lower seat 7 and the upper plate 6 be arranged in lower seat 7, lower seat 7 is U-shaped steel plate, upper plate 6 for length be stairway width-200mm, width is the rectangle steel plate of tread run, upper plate 6 is arranged in the U-lag of lower seat 7, and the bottom land shape and size of U-lag are mated with upper plate 6; Graphite bisque is provided with between lower seat 7 and upper plate 6; Upper plate 6 is linked together by flat head screw and reinforced concrete stairs.Flat head screw length direction two is arranged and is arranged, and the spacing of adjacent two flat head screws is 200mm.
The length of described aseismatic bearing is identical with stairway width; The width of aseismatic bearing is tread run.
Landing plate 3 and reinforced concrete stairs are provided with the gap of 5mm between marking time, be filled with polyphenyl plate 8 in this gap.
Claims (1)
1. anti-seismic concrete stair, comprise the reinforced concrete stairs of some compositions of marking time, and it is characterized in that connecting by being connected bridging piece, polyphenyl plate and aseismatic bearing between reinforced concrete stairs with constructure body structure; The landing plate of described connection bridging piece and constructure body structure connects as one, and the base of aseismatic bearing is embedded in and connects in bridging piece;
Described aseismatic bearing be arranged on stair step original position and second floor ladder landing slab and first floor ladder rung original position between;
Described aseismatic bearing is made up of lower seat and the upper plate be arranged in lower seat, and lower seat is U-shaped steel plate, and upper plate is rectangle steel plate, and upper plate is arranged in the U-lag of lower seat; Be provided with graphite bisque between seat and upper plate down;
Landing plate and reinforced concrete stairs are provided with the gap of 5mm between marking time, be filled with polyphenyl plate in this gap;
The length of described aseismatic bearing is identical with stair length; The width of aseismatic bearing is identical with tread run;
Upper plate is linked together by two row's flat head screws and reinforced concrete stairs; Distance between adjacent two flat head screws is 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238065.XU CN204626812U (en) | 2015-04-18 | 2015-04-18 | A kind of anti-seismic concrete stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238065.XU CN204626812U (en) | 2015-04-18 | 2015-04-18 | A kind of anti-seismic concrete stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204626812U true CN204626812U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520238065.XU Active CN204626812U (en) | 2015-04-18 | 2015-04-18 | A kind of anti-seismic concrete stair |
Country Status (1)
| Country | Link |
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| CN (1) | CN204626812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593501A (en) * | 2019-08-27 | 2019-12-20 | 中建四局第六建筑工程有限公司 | Integral cast-in-place structure of sliding support stair and construction method thereof |
-
2015
- 2015-04-18 CN CN201520238065.XU patent/CN204626812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593501A (en) * | 2019-08-27 | 2019-12-20 | 中建四局第六建筑工程有限公司 | Integral cast-in-place structure of sliding support stair and construction method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |