CN205024995U - Take cast -in -place cranked slab stairs of bracket formula sliding support - Google Patents

Take cast -in -place cranked slab stairs of bracket formula sliding support Download PDF

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Publication number
CN205024995U
CN205024995U CN201520793713.8U CN201520793713U CN205024995U CN 205024995 U CN205024995 U CN 205024995U CN 201520793713 U CN201520793713 U CN 201520793713U CN 205024995 U CN205024995 U CN 205024995U
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CN
China
Prior art keywords
sliding support
plate
support
bracket
cast
Prior art date
Application number
CN201520793713.8U
Other languages
Chinese (zh)
Inventor
柳聪聪
谢云柳
杨永福
彭飞
程大勇
张晓冰
李宏坤
李士伟
王超
裴冬梅
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中建三局集团有限公司
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Priority to CN201520793713.8U priority Critical patent/CN205024995U/en
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Publication of CN205024995U publication Critical patent/CN205024995U/en

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Abstract

The utility model discloses a take cast -in -place cranked slab stairs of bracket formula sliding support, including support structure and multistage stair board, support structure with be provided with two sliding supports between the stair board, the sliding support has upper bracket board and bottom suspension bedplate, upper bracket board and the pre -buried second steel sheet welded fastening of stair board lower extreme, bottom suspension bedplate and the pre -buried first steel sheet welded fastening of support structure upper surface. The utility model discloses a take cast -in -place cranked slab stairs of bracket formula sliding support's stair board lower extreme and support structure directly do not link to each other, accomplish normal working condition biography power down through the sliding support, and under seismic action, the end structure passes through the sliding support and freely slides under the stair board, releases the earthquake ability, and elimination seismic action is to the destruction of stair, and the assurance personnel evacuate smoothly.

Description

A kind of cast-in-place slab type stairway with corbel type sliding support
Technical field
The utility model relates to the realm of building construction, particularly a kind of cast-in-place slab type stairway with corbel type sliding support.
Background technology
Stair are important component parts of multilayer structure structure, comparatively complicated at geological process lower stress.The concrete staircase of conventional construction mode, waist slab and agent structure is whole waters, is equivalent to diagonal supporting member and participates in lateral resisting, cause structure stress complicated, and himself also often destroys under severe earthquake action in advance.Given this, " the board-like stair of cast-in-situ concrete " (11G101-2) proposes and have employed a kind of new glissando, it makes two fixed ends of board-like for cast-in-situ concrete stair into upper end is fixed bearing, lower end is sliding support, staristep can be free to slide in certain interval when an earthquake occurs, thus reduces the possibility that destruction occurs staristep.Two kinds of sliding support ways are proposed: 1) pre-embedded steel slab, 2 in " the board-like stair of cast-in-situ concrete " (11G101-2)) polyvinyl fluoride backing plate is set.Also point out, sliding support also can provide by designing separately simultaneously.
Although above-mentioned stair can slide in certain interval, the degree of freedom of activity is less, and upper and lower, the left and right that cannot realize in larger interval is free to slide, and therefore it only can the release seismic energy of part, nothing the smooth evacuation of personnel when guaranteeing earthquake.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of cast-in-place slab type stairway with corbel type sliding support and construction method thereof, which overcome the above-mentioned shortcoming of prior art, these stair all have larger degree of freedom in the x, y direction, it can make stair bench realize being free to slide in larger interval under geological process, more effectively discharge seismic energy, to guarantee that personnel evacuate smoothly.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of cast-in-place slab type stairway with corbel type sliding support, comprise multistage stair tread and supporting construction, two sliding supports are provided with between stair tread and supporting construction, sliding support has upper bracket plate and lower support plate, pre-buried the second Plate Welding of upper bracket plate and stair tread lower end, lower support plate and pre-buried the first Plate Welding of supporting construction inner bracket upper surface.This sliding support makes stair tread lower end structure and its supporting construction throw off, and reduces the slide lines face of stair tread lower end structure under geological process, can be free to slide, more effectively discharge seismic energy in larger interval.
Preferably, in technique scheme, sliding support also has plane stainless steel plate and plane slide plate, and plane slide plate is arranged at above lower support plate, and plane stainless steel plate is arranged between upper bracket plate and plane slide plate.Being free to slide of sliding support realizes mainly through the slippage between plane stainless steel plate and plane slide plate.
Preferably, in technique scheme, plane slide plate is MHP slide plate, is coated with silicone grease lubrication oil in mounting surface oil storage tank.
Preferably, in technique scheme, the second steel plate is identical with stair tread width, thus pollutes sliding support when avoiding cast-in-place slab type stairway bench concrete construction, affects shuffle effect.
Preferably, in technique scheme, the width of the first steel plate is greater than the width of lower support plate.First steel plate is embedded in bracket upper surface in advance, with fixing sliding support.
The utility model technique scheme, has following beneficial effect:
Stair tread lower end structure of the present utility model is not directly connected with its supporting construction, the power transmission under normal operating condition is completed by sliding support, under geological process, stair tread lower end structure is free to slide by Novel sliding seat, release tectonic comparison, eliminate geological process to the destruction of stair, guarantee personnel evacuate smoothly.
Sliding support upper bracket plate of the present utility model welds with stair tread lower end pre-embedded steel slab, lower support plate is welded with bracket upper surface pre-embedded steel slab, thus slip is constrained in sliding support inside, make seismic energy concentrate release in sliding support, effectively avoid structural deterioration.
The utility model is applicable to all kinds of area, is particularly useful for the civilian public building structural system of earthquake prone areas, is specially adapted to frame construction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.
Fig. 2 is the sliding support schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.
Fig. 3 be the cast-in-place slab type stairway of band corbel type sliding support of the present utility model sliding support on generalized section.
Fig. 4 is generalized section under the sliding support of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.
Fig. 5 is the first steel plate schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.
Fig. 6 is the second steel plate schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.
1-supporting construction, 11-first steel plate, 2-stair tread, 21-second steel plate, 3-sliding support, 31-lower support plate, 32-plane slide plate, 33-plane stainless steel plate, 34-upper bracket plate, 4-welding hole.
Detailed description of the invention
Below specific embodiment of the utility model is described in detail, so that understand the utility model further.
Fig. 1 is the schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.As shown in the figure, a kind of cast-in-place slab type stairway with corbel type sliding support, comprises supporting construction 1, stair tread 2 and sliding support 3.Wherein, sliding support 3 is arranged at the top of supporting construction 1, and stair tread 2 is positioned at the top of sliding support 3, and that is, sliding support 3 is between supporting construction 1 and stair tread 2.
Fig. 2 is the sliding support schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.Fig. 3, Fig. 4 are the upper and lower generalized section of sliding support of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.Fig. 5, Fig. 6 are the first steel plate, the second steel plate schematic diagram of the cast-in-place slab type stairway of band corbel type sliding support of the present utility model.Please also refer to Fig. 1-Fig. 6, as shown in the figure:
Sliding support 3 is made up of lower support plate 31, plane slide plate 32, plane stainless steel plate 33 and upper bracket plate 34 4 part.This four part is followed successively by lower support plate 31, plane slide plate 32, plane stainless steel plate 33 and upper bracket plate 34 from the bottom to top.That is, plane slide plate 32 is arranged at the top of lower support plate 31, and plane stainless steel plate 33 is arranged at above plane slide plate 32 and between upper bracket plate 34.Wherein sliding material preferably adopts MHP slide plate, is coated with silicone grease lubrication oil in mounting surface oil storage tank.Being free to slide of sliding support 3 realizes mainly through the slippage between plane stainless steel plate 33 and MHP plane slide plate.
The bracket upper surface of supporting construction 1 is embedded with two the first steel plates 11, and as shown in Figure 3, two the first steel plates 11 lay respectively at the left and right sides, are symmetrical set.The surrounding of this first steel plate 11 offers welding hole 4, so that will weld.Above-mentioned welding hole is preferably 4, but the utility model is not as limit, and those skilled in the art can carry out the selection of number according to the needs of practical operation.The width of the first steel plate 11 is greater than the width of lower support plate 31, with fixing sliding support 3.The lower support plate 31 of sliding support 3 is fixed by welding on the first steel plate 11.
The soffit of stair tread 2 is embedded with on the second steel plate 21, second steel plate 21 has double row welded hole 4, so that welding.The quantity of above-mentioned welding hole 4 can need according to practical operation the selection carrying out number.The width of this second steel plate 21 is identical with the width that stair tread 2 lower end contact surface is arranged, thus pollutes sliding support when avoiding cast-in-place slab type stairway bench concrete construction, affects shuffle effect.The upper bracket plate 34 of sliding support 3 is fixed together by welding and the second steel plate 21.
Welded with the first steel plate 11 by lower support plate 31, upper bracket plate 34 welds with the second steel plate 21, thus it is inner slip to be constrained in sliding support 3, make seismic energy concentrate release in sliding support, effectively avoid structural deterioration.
A construction method for cast-in-place slab type stairway with corbel type sliding support, point following two step constructions:
(1) lower end support bracket construction.At each pre-buried one piece of first steel plate 11 in upper surface two slip support abutment 3 permanent positions during the support bracket construction of lower end, after lower end support bracket has been constructed, at two ends, sliding support 3 is installed at pre-buried first steel plate 11 place.
(2) stair bench construction.Undertaken welding by pre-buried second steel plate 21 of sliding support 3 and the soffit of stair tread 2 lower end and form power transmission.Pre-buried second steel plate 21 of soffit of staristep plate lower end is connected with reinforcement welding in bench.
Detailed, comprise the following steps:
First, pre-buried two the first steel plates 11 after the reinforcing bar binding of supporting construction 1, this first steel plate 11 is embedded in the bracket upper surface in supporting construction 1, and it is fixing by being welded to connect with reinforcing bar in bracket, the absolute altitude of this first steel plate 11 of repetition measurement and horizontal level, after guaranteeing pre-embedded steel slab 11 surfacing, build supporting construction concrete;
Secondly, set up bench template, clear up the surface of the first steel plate 11, make it clean, then the lower support plate 31 of the sliding support 3 of finished product is welded on the first steel plate 11;
Again, be soldered on the upper bracket plate 34 of sliding support 3 by the second steel plate 21, the absolute altitude of this second steel plate 21 of repetition measurement and horizontal level are also fixed;
Finally, bench reinforcing bar and the second steel plate 21 are fixed together by welding, colligation bench reinforcing bar, build maintenance certain hour after bench concrete.
Stair tread lower end structure of the present utility model is not directly connected with its supporting construction, the power transmission under normal operating condition is completed by sliding support, under geological process, stair tread lower end structure is free to slide by Novel sliding seat, release tectonic comparison, eliminate geological process to the destruction of stair, guarantee personnel evacuate smoothly.
Sliding support upper bracket plate of the present utility model welds with stair tread lower end pre-embedded steel slab, lower support plate is welded with bracket upper surface pre-embedded steel slab, thus slip is constrained in sliding support inside, make seismic energy concentrate release in sliding support, effectively avoid structural deterioration.
The utility model is applicable to all kinds of area, is particularly useful for the civilian public building structural system of earthquake prone areas, is specially adapted to frame construction.
Although the utility model with embodiment openly as above; so it is not intended to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; all can do various different selection and amendment, therefore protection domain of the present utility model limited by claims and equivalents thereof.

Claims (5)

1. the cast-in-place slab type stairway with corbel type sliding support, comprise supporting construction (1) and multistage stair tread (2), it is characterized in that, two sliding supports (3) are provided with between described supporting construction (1) and described stair tread (2), described sliding support (3) has upper bracket plate (31) and lower support plate (34), the second steel plate (21) that described upper bracket plate (34) is pre-buried with described stair tread (2) lower end is welded and fixed, pre-buried the first steel plate (11) of described lower support plate (31) and described supporting construction (1) upper surface is welded and fixed.
2. the cast-in-place slab type stairway of band corbel type sliding support according to claim 1, it is characterized in that, described sliding support (3) also has plane slide plate (32) and plane corrosion resistant plate (33), described plane slide plate (32) is arranged at described lower support plate (31) top, and described plane stainless steel plate (33) is arranged between described plane slide plate (32) and described upper bracket plate (34).
3. the cast-in-place slab type stairway of band corbel type sliding support according to claim 2, is characterized in that, described plane slide plate (32) is MHP slide plate.
4. the cast-in-place slab type stairway of band corbel type sliding support according to claim 1, is characterized in that, described second steel plate (21) is identical with described stair tread (2) width.
5. the cast-in-place slab type stairway of band corbel type sliding support according to claim 1, is characterized in that, the width of described first steel plate (11) is greater than the width of described lower support plate (34).
CN201520793713.8U 2015-10-14 2015-10-14 Take cast -in -place cranked slab stairs of bracket formula sliding support CN205024995U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201162A (en) * 2015-10-14 2015-12-30 中建三局集团有限公司 Cast-in-situ plate type staircase with bracket type sliding supports and construction method thereof
CN109629775A (en) * 2019-02-02 2019-04-16 河南绿建建筑科技有限公司 The fixed lower end in upper end, which is slidably connected, supports Anti-seismic assembled stair
CN109629776A (en) * 2019-02-02 2019-04-16 河南绿建建筑科技有限公司 Upper and lower ends, which are slidably connected, supports Anti-seismic assembled stair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201162A (en) * 2015-10-14 2015-12-30 中建三局集团有限公司 Cast-in-situ plate type staircase with bracket type sliding supports and construction method thereof
CN109629775A (en) * 2019-02-02 2019-04-16 河南绿建建筑科技有限公司 The fixed lower end in upper end, which is slidably connected, supports Anti-seismic assembled stair
CN109629776A (en) * 2019-02-02 2019-04-16 河南绿建建筑科技有限公司 Upper and lower ends, which are slidably connected, supports Anti-seismic assembled stair

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