CN211341176U - Connecting structure of precast concrete stairs and steel structure building main body - Google Patents
Connecting structure of precast concrete stairs and steel structure building main body Download PDFInfo
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- CN211341176U CN211341176U CN201921583017.9U CN201921583017U CN211341176U CN 211341176 U CN211341176 U CN 211341176U CN 201921583017 U CN201921583017 U CN 201921583017U CN 211341176 U CN211341176 U CN 211341176U
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Abstract
The utility model relates to a precast concrete stair and steel construction building main part's joint construction, include: floor bodies which are arranged in parallel at intervals in the vertical direction; the middle platform structure is arranged between two adjacent floor bodies; precast concrete stair, including a plurality of precast concrete stair flight unit bodies, each precast concrete stair flight unit body is from supreme locating between adjacent floor body and the middle platform structure in proper order down, thereby and the installation position of precast concrete stair flight unit body on placing floor body and middle platform structure respectively in the both ends of the unit body is connected middle platform structure and floor body. The utility model discloses add between the two-layer floor body and establish middle platform structure, utilize precast concrete stair bench cell cube to be connected middle platform structure with the upper floor body, middle platform structure can bear the weight rather than the precast concrete stair bench cell cube of being connected, and connection structure is standard, good reliability.
Description
Technical Field
The utility model relates to a building design makes the field, especially relates to precast concrete stair and steel construction building main body's joint construction.
Background
Currently, existing steel frame building structures are basically matched with steel stairways. The site construction process of the steel stair is relatively complicated and the construction period is long; particularly, after the steel stair is installed, fire prevention treatment such as coating of a facing with a concrete mortar binding layer is required to be carried out independently, in order to avoid corrosion, decoration and package treatment and periodical maintenance are required to be carried out on the steel stair, the decoration and package treatment process is complicated, a light steel keel for nailing a decorative plate needs to be welded firstly, the steel stair is packaged by a plate firstly and then is subjected to subsequent decoration and construction procedures, and a large amount of manpower and more material cost are required to be consumed.
In order to solve this problem, it is conceivable to adopt a connection structure of the precast concrete stairway and the steel structural building main body. Generally, in the main body steel structure design, the rigidity influence of the stairs on the main body structure is usually not considered, and only the vertical load of the stairs is considered, however, the concrete stairs generally have larger weight and large rigidity, and absorb more earthquake loads. In addition, the connection structure of the concrete stair and the main structure lacks standard specifications, the design of the prefabricated concrete stair and the main structure of the steel structure building lacks matched standard bases, and field construction personnel lack basic professional knowledge and literacy, which all affect the safety and reliability of the connection structure of the prefabricated concrete stair and the steel structure.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a connection structure of precast concrete stair and steel structure building main body to solve the problem that the structure safety and reliability are not high due to the non-standard connection structure of precast concrete stair and steel structure building main body.
A connection structure of a precast concrete stair and a steel structure building main body, comprising:
floor bodies which are arranged in parallel at intervals in the vertical direction;
the middle platform structure is arranged between two adjacent floor bodies;
precast concrete stair, including a plurality of precast concrete stair section unit bodies, each precast concrete stair section unit body is from supreme locating in proper order down adjacent the floor body with between the middle platform structure, just the both ends of precast concrete stair section unit body are located respectively the floor body with thereby structural will of middle platform structure with the floor body is connected.
Above-mentioned precast concrete stair and steel construction building main body's connection structure has following profitable technological effect at least:
the utility model discloses in, thereby the floor body and the structural intermediate platform of being connected the intermediate platform structure reliably with the floor body are arranged in respectively at the both ends of each precast concrete stair bench cell cube. The middle platform structure is additionally arranged between the two floor slabs, and after the middle platform structure is connected with the upper floor slabs by utilizing the precast concrete stair step unit bodies, the middle platform structure can bear the weight of the precast concrete stair step unit bodies connected with the middle platform structure.
The adopted precast concrete stairs avoid the complexity of site construction of the steel stairs, shorten the construction period and simultaneously facilitate the elimination of technological errors generated by construction operation; the fireproof performance and the durability of the existing cast-in-place concrete stair of the precast concrete stair are improved, and compared with a steel structure stair, a plurality of complex processes of field construction are reduced, such as fireproof treatment, decoration wrapping treatment and the like, so that the construction is more convenient and rapid, and the manpower and material cost are saved. In addition, concrete stair are less for steel construction stair the noise of trampling stair, use and experience better.
In one embodiment, the intermediate platform structure comprises:
a platform body;
the connecting column is used for connecting the platform body to the steel beam of the floor body.
In one embodiment, the connecting columns are symmetrically arranged on two sides of the platform body, one end of each connecting column is fixed on the platform body, and the other end of each connecting column is connected with the steel beam above the platform body.
In one embodiment, the middle platform structure further comprises a middle ladder-placing beam arranged at one side edge of the platform body and used for fixing the end part of the precast concrete stair section unit body connected with the platform body.
In one embodiment, the middle platform structure further comprises a first limit fixing C-level screw rod arranged on the surface of the middle ladder girder, and the first limit fixing C-level screw rod is used for penetrating through the end part of the precast concrete stair section unit body so as to fix the end part of the precast concrete stair section unit body to the middle ladder girder.
In one embodiment, the platform body comprises a support frame and a pattern steel plate arranged on the support frame.
In one embodiment, the floor body comprises floor opening steel beams, the floor opening steel beams surround a stair opening, and a floor ladder-placing beam component is arranged at the edge of the stair opening and used for fixing the end part of the precast concrete stair section unit body connected with the floor body.
In one embodiment, the ladder resting beam member comprises:
the ladder girder body is arranged at the edge of the stair opening;
and the supporting plate is arranged on one side of the ladder placing beam body and is used for supporting and fixing the end part of the precast concrete stair section unit body.
In one embodiment, the ladder-resting beam member further comprises a second limiting and fixing C-level screw rod, which is arranged on the surface of the supporting plate and correspondingly penetrates through a limiting hole at the end part of the precast concrete stair section unit body so as to fix the end part of the precast concrete stair section unit body to the supporting plate.
In one embodiment, the precast concrete stair section unit body comprises a low end and a high end, the low end is arranged at a preset mounting position on the floor body or the middle platform structure through a sliding hinge support, and the high end is arranged at a preset mounting position on the floor body or the middle platform structure through a fixed hinge support.
Drawings
Fig. 1 is a schematic view of a connection structure between a precast concrete stair and a steel structure building main body according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a structure of an intermediate platform in a connection structure of the precast concrete stairway shown in fig. 1 with a steel structure building body;
fig. 3 is a schematic view of a joist member in a connection structure of the precast concrete stairway shown in fig. 1 and a steel structure building main body.
In the figure, the position of the upper end of the main shaft,
100. a floor body, 110, a floor opening steel beam, 120 and a stair opening,
130. a floor ladder beam component 131, a ladder beam body 132, a support plate 133, a second limit fixed C-level screw 134 and a reinforcing rib plate,
200. a middle platform structure 210, a platform body 211, a supporting frame 212, a patterned steel plate 220, a connecting column 230, a middle ladder-laying beam 240, a first limiting fixed C-level screw rod,
300. a precast concrete stair 310, precast concrete stair step section unit bodies 311 and limit holes,
400. a main structure column.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Those of ordinary skill in the art will recognize that variations and modifications of the various embodiments described herein can be made without departing from the scope of the invention, which is defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, in an embodiment of the present invention, a connection structure of a precast concrete stair and a steel structure building main body is provided, including: a floor body 100, an intermediate deck structure 200, and a precast concrete staircase 300. Wherein, the floor bodies 100 are arranged in parallel at intervals in the vertical direction; the middle platform structure 200 is arranged between two adjacent floor bodies 100; the precast concrete stairway 300 includes a plurality of precast concrete stairway unit bodies 310, each precast concrete stairway unit body 310 is sequentially disposed between the adjacent floor body 100 and the middle platform structure 200 from the bottom up, and both ends of the precast concrete stairway unit body 310 are respectively disposed on the floor body 100 and the middle platform structure 200 so as to connect the middle platform structure 200 with the floor body 100.
The floor body 100 is supported by the structural main columns 400 to form a structural steel building main frame. The utility model discloses in, add between the two-layer floor body 100 and establish middle platform structure 200, utilize precast concrete stair flight cell cube 310 to be connected middle platform structure 200 and upper floor body 100 after, middle platform structure 200 can bear the weight rather than the stair cell cube 310 who is connected. The pull-down load that concrete stair 300 directly applyed to upper floor 100 and the pressure load that applys to lower floor 100 can be lightened to a certain extent to reduced the probability that steel construction building subject takes place to warp, concrete stair 300 is better with the reliability that steel construction building subject is connected, overall structure's atress is reasonable, and the security is high.
In some embodiments, the intermediate platform structure 200 includes a platform body 210 and a connection column 220, the connection column 220 being used to connect the platform body 210 to the floor body 100.
In this embodiment, the platform body 210 is connected with the floor slab 100 of the steel structure building main body through the connecting column 220, so that the stability of the installation position of the platform body 210 can be ensured.
Preferably, the connection columns 220 are symmetrically disposed at both sides of the platform body 210, one end of each connection column is fixed to the platform body 210, and the other end of each connection column is connected to the floor body 100 above the platform body 210. The platform body 210 is suspended on the floor body 100 through the symmetrical connecting columns 220, so that the position stability of the platform body 210 can be improved, and the shaking caused by unstable fixation of the platform body 210 is avoided; meanwhile, the suspension mode does not occupy excessive installation space and adopts less materials.
Referring to fig. 2, in some embodiments, the intermediate platform structure 200 further includes an intermediate ladder bar 230, the intermediate ladder bar 230 being provided at one side edge of the platform body 210 for fixing an end of the precast concrete stair step unit body 310 coupled to the platform body 210. After the end of the precast concrete stair section unit body 310 is arranged in the middle of the stair-laying beam 230, the middle stair-laying beam 230 can bear the weight of the precast concrete stair section unit body 310 by bearing the end of the precast concrete stair section unit body 310.
With continued reference to fig. 2, in some embodiments, the intermediate platform structure 200 further comprises a first limit fixing C-staged screw 240 provided on the surface of the intermediate stair resting beam 230, the first limit fixing C-staged screw 240 being used to pass through the end of the precast concrete stair step unit body 310 to fix the end of the precast concrete stair step unit body 310 to the intermediate stair resting beam 230. The first limit fixing C-level screw 240 can be used to firmly connect the end of the stairway unit body 310 and the middle landing beam 230. Preferably, first spacing fixed C level screw rod 240 welds perpendicularly on middle ladder beam 230 surface of putting, and screw rod intensity is high, and welded mode connection stability is good, avoids long-term the use to take place to loosen and then cause the incident.
Preferably, the platform body 210 includes a supporting frame 211 and a patterned steel plate 212 disposed on the supporting frame 211, the supporting frame 211 can improve the bending strength of the platform body, and the patterned steel plate 212 has a good anti-slip effect. Specifically, the patterned steel plate 212 may be designed according to actual requirements, and a reinforcing rib may be disposed at the bottom thereof. More preferably, the support frame 211 is defined by the channel steel beams, and the openings of the channel steel beams face into the platform body 210, the channel steel beams have high strength and can resist deformation, and the openings of the channel steel beams face into the platform body 210, so that the overall consistency of the appearance can be improved.
The utility model discloses a middle platform structure 200 can mass production, and prefabricated assembly is a whole, transport job site back direct and floor body 100 be assembled between/be connected between. The mass production quality is guaranteed, the error is small, and the quick assembly can be realized when the device is conveyed to a field. The safety of site operation is improved, redundant garbage can not be generated due to the assembly of the middle platform structure 200 on site, and the construction environment is better.
Referring to fig. 1 and 3, in some embodiments, the floor body 100 includes floor opening steel beams 110, the floor opening steel beams 110 enclose a stair opening 120, and a floor landing beam member 130 is provided at an edge of the stair opening 120 for fixing an end of a precast concrete stair section unit 310 connected to the floor body 100. In this embodiment, after the end of the precast concrete stair section unit body 310 is fixed to the floor landing beam member 130 at the edge of the stair hole 120, the floor landing beam member 130 can cooperate with the middle platform structure 200 to jointly bear the weight of the stair unit body 310.
Referring to fig. 3, in some embodiments, a floor joist member 130 includes a joist body 131 and a support plate 132. The ladder placing beam body 131 is arranged at the edge of the stair hole 120, and the support plate 132 is arranged on one side of the ladder placing beam body 131 and used for supporting and fixing the end part of the precast concrete stair section unit body 310. The support plate 132 is connected to the edge of the stair hole 120 through the girder 131, so that the connection strength can be ensured, and the support plate 132 can freely expand the support area according to the design requirement, and can be matched with the middle platform structure 200 to stably bear the weight of the precast concrete stair section unit 310.
Further, the floor landing beam member 130 further includes a second limiting fixing C-level screw 133, which is disposed on the surface of the support plate 132 and correspondingly passes through a limiting hole 311 at the end of the precast concrete stair step unit 310 to fix the end of the precast concrete stair step unit 310 to the support plate 132. Utilize the spacing fixed C level screw 133 of second can be in the same place precast concrete stair stage unit 310 tip and bearing plate 132 firm connection, avoid precast concrete stair stage unit 310 tip and the direct overlap joint of bearing plate 132 to take place great relative slip and even drop, improved application safety factor. Preferably, the second limiting fixed C-level screw 133 is vertically welded on the surface of the support plate 132, the screw strength is high, the welding mode is good in connection stability, and safety accidents caused by loosening after long-term use are avoided. Of course, in other embodiments, the floor joist 130 may not include the second limiting fixing rod 133, and the implementation of the present invention is not limited herein.
Preferably, reinforcing rib plates 134 are arranged on the landing beam body 131 and the support plate 132. The reinforcing rib plate 134 can enhance the strength of the ladder girder body 131 and the support plate 132, and reduce the probability of deformation caused by compression. It is understood that in other embodiments, the stiffener plate 134 may not be provided, and the normal implementation of the present invention is not affected and is not limited herein.
It will be appreciated that in other embodiments, the floor ladder beam member 130 may be a simple ladder board or a ladder bar, without affecting the normal implementation of the objects of the present invention, and is not limited thereto.
In some embodiments, the precast concrete stairstep unit body 310 includes a lower end and a higher end, the lower end is provided at a predetermined installation position on the floor body 100 or the middle platform structure 200 through a sliding hinge support, and the higher end is provided at a predetermined installation position on the floor body 100 or the middle platform structure 200 through a fixed hinge support. The sliding hinged support can horizontally move in a small range on the installation position, and after the lower end of the sliding hinged support is installed on the sliding hinged support, the sliding hinged support can horizontally move along the direction of the bearing surface according to the stress condition to perform self-adaptive displacement adjustment, so that the release of horizontal earthquake force is facilitated, the change of the integral rigidity of the structure is facilitated, and the safety coefficient of the integral structure is improved; the fixed hinge support can not move horizontally basically, and the setting stability and the safety of the precast concrete stair section unit body 310 on the installation position are improved.
Of course, in other embodiments, the lower end and the upper end of the precast concrete stair unit body 310 may be directly fixed to the installation position of the floor body 100 or the middle platform structure 200, which is not limited herein.
In the above embodiment, the precast concrete stair step unit 310 can be precast according to a unified standard in a factory, the quality can be guaranteed in batch production, the error is small, and the precast concrete stair step unit can be quickly assembled when being transported to a field. The precast concrete stair 300 does not need to be cast in place, the process of binding reinforcing steel bars by a formwork in the site is omitted, the safety of site construction is improved, waste reinforcing steel bars or cement and other garbage are not generated in the site, the construction environment is protected, and the construction requirement of environmental protection is met.
In the above embodiments, the floor body 100, the intermediate platform structure 200, and other parts may be processed in advance in a factory for mass production, and then transported to a construction site for assembly and connection. The mass production quality is guaranteed, the error is small, and the quick assembly can be realized when the device is conveyed to a field. The safety of site operation is improved, redundant garbage can not be generated due to independent assembly of all parts on site, and the construction environment is better.
Of course, will form the utility model discloses the component that the structure needs to be used transports the job site alone to it is also possible to assemble comprehensively at the job site, does not influence the utility model discloses an implement, does not do the restriction here.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a precast concrete stair and steel construction building main body's joint construction which characterized in that includes:
floor bodies which are arranged in parallel at intervals in the vertical direction;
the middle platform structure is arranged between two adjacent floor bodies;
precast concrete stair, including a plurality of precast concrete stair section unit bodies, each precast concrete stair section unit body is from supreme locating in proper order down adjacent the floor body with between the middle platform structure, just the both ends of precast concrete stair section unit body are located respectively the floor body with thereby structural will of middle platform structure with the floor body is connected.
2. The precast concrete stairway according to claim 1, wherein the intermediate platform structure comprises:
a platform body;
the connecting column is used for connecting the platform body to the steel beam of the floor body.
3. The precast concrete stairway and steel structure building main body connection structure according to claim 2, wherein the connection columns are symmetrically arranged on both sides of the platform body, one end of each connection column is fixed on the platform body, and the other end of each connection column is connected with the steel beam of the floor body above the platform body.
4. The structure of connecting precast concrete stairs with a steel structure building main body according to claim 2, wherein the middle platform structure further comprises a middle ladder-resting beam provided at one side edge of the platform body for fixing the end of the precast concrete stair section unit body connected with the platform body.
5. The connecting structure of the precast concrete stairs and the steel structure building main body according to claim 4, wherein the middle platform structure further comprises a first limit fixing C-level screw rod arranged on the surface of the middle ladder-resting beam, and the first limit fixing C-level screw rod is used for penetrating through the end part of the precast concrete stair section unit body so as to fix the end part of the precast concrete stair section unit body to the middle ladder-resting beam.
6. The precast concrete stair and steel structure building main body connection structure according to claim 2, wherein the platform body comprises a support frame and a pattern steel plate arranged on the support frame.
7. The connecting structure of the precast concrete stairway and the steel structure building main body according to claim 1, wherein the floor body comprises floor opening steel beams, the floor opening steel beams surround a stairway opening, and a floor ladder beam placing member is arranged at the edge of the stairway opening and used for fixing the end part of the precast concrete stairway section unit body connected with the floor body.
8. The precast concrete stairway according to claim 7, wherein the floor joist member comprises:
the ladder girder body is arranged at the edge of the stair opening;
and the supporting plate is arranged on one side of the ladder placing beam body and is used for supporting and fixing the end part of the precast concrete stair section unit body.
9. The structure of connecting precast concrete staircases and steel structural building bodies according to claim 8, wherein the floor joist members further comprise second position-limiting fixing C-level screws provided on the surface of the support plate to correspondingly pass through the position-limiting holes of the ends of the precast concrete stair step units to fix the ends of the precast concrete stair step units to the support plate.
10. The connecting structure of the precast concrete stairway and the steel structure building main body according to claim 1, wherein the precast concrete stairway unit body comprises a low end and a high end, the low end is provided at a preset mounting position on the floor body or the middle platform structure through a sliding hinge support, and the high end is provided at a preset mounting position on the floor body or the middle platform structure through a fixed hinge support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583017.9U CN211341176U (en) | 2019-09-23 | 2019-09-23 | Connecting structure of precast concrete stairs and steel structure building main body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921583017.9U CN211341176U (en) | 2019-09-23 | 2019-09-23 | Connecting structure of precast concrete stairs and steel structure building main body |
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| CN211341176U true CN211341176U (en) | 2020-08-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404322A (en) * | 2021-06-15 | 2021-09-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for transforming steel ladder into concrete ladder in high-rise concrete structure |
| CN113738038A (en) * | 2021-09-27 | 2021-12-03 | 浙江精工钢结构集团有限公司 | Slidable anti-falling steel structure stair |
-
2019
- 2019-09-23 CN CN201921583017.9U patent/CN211341176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404322A (en) * | 2021-06-15 | 2021-09-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for transforming steel ladder into concrete ladder in high-rise concrete structure |
| CN113738038A (en) * | 2021-09-27 | 2021-12-03 | 浙江精工钢结构集团有限公司 | Slidable anti-falling steel structure stair |
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Effective date of registration: 20201228 Address after: Room 701, East Building, innovation and Research Center, 8 Yanzheng West Avenue, Wujin District, Changzhou City, Jiangsu Province, 213100 Patentee after: Jiuling (Jiangsu) Digital Intelligent Technology Co., Ltd Address before: Room d1-9999, 58 Fumin Branch Road, Hengsha Township, Chongming District, Shanghai 202150 (Hengtai Economic Development Zone, Shanghai) Patentee before: Jiuling (Shanghai) Intelligent Technology Co.,Ltd. |