CN212271445U - A prefabricated integral shock insulation support for stair structure - Google Patents
A prefabricated integral shock insulation support for stair structure Download PDFInfo
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- CN212271445U CN212271445U CN202021719895.1U CN202021719895U CN212271445U CN 212271445 U CN212271445 U CN 212271445U CN 202021719895 U CN202021719895 U CN 202021719895U CN 212271445 U CN212271445 U CN 212271445U
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- flexible deformation
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- 230000035939 shock Effects 0.000 title claims abstract description 69
- 238000009413 insulation Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 229920001971 elastomer Polymers 0.000 claims abstract description 46
- 239000005060 rubber Substances 0.000 claims abstract description 46
- 238000002955 isolation Methods 0.000 claims description 20
- 239000004567 concrete Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 10
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Abstract
The utility model relates to a prefabricated integral shock insulation support for a stair structure, which comprises a support base body, a flexible deformation body and a connecting assembly, wherein the flexible deformation body and the connecting assembly are arranged in the support base body; the flexible deformation body is in an L-shaped structure; one end of the connecting component is arranged in the support base body and connected with the shock insulation rubber, and the connecting component, the flexible deformation body and the support base body are prefabricated into a whole; the other end of the connecting component is arranged outside the support base body; the flexible deformation body further comprises steel plates respectively arranged on the upper surface and the lower surface of the shock insulation rubber, and the connecting assembly is connected with the shock insulation rubber through the steel plates. The utility model discloses construction node connection is simple, the assembly rate is high, shock insulation support forms the frame construction that concrete and reinforcing bar combined together with the stair, and stability is good, the earthquake resistance intensity of seting up defences can reach 6-8 degrees, and the shock insulation rank is high.
Description
Technical Field
The utility model belongs to the technical field of the construction, a shock insulation support is related to, especially, relate to a prefabricated integral shock insulation support for stair structure.
Background
In the structure of the plate type stair, the stair increases the space rigidity of the whole structure, in the design of the traditional frame structure stair, the stair plates of the plate type stair are generally designed only according to one-way bending components, but the middle plates are used as oblique supporting components to bear axial force and shearing force under the action of earthquake, so that the stress of the joints of the stair plates and the stair beams is large. Generally, a support is required to be arranged between the upper-layer ladder plate and the lower-layer ladder beam for releasing the shearing force and the bending moment, reducing the stress of the ladder plate and playing a role in resisting earthquake. Currently, the current practice is. The mounting mode of the stair earthquake-resistant support is usually an assembly type structure which mainly comprises concrete and a steel structure, the assembly type concrete structure is the key point of the industrial development of buildings, but the technical level of the structure has the defects of limited building types, low assembly rate, complex node connection and poor earthquake-resistant performance; the steel structure is processed in factories, installed on site, has higher industrialization degree and high construction and maintenance cost. Therefore, a new stair seismic isolation method is required.
SUMMERY OF THE UTILITY MODEL
The technical problem to current stair isolation bearing appearance, the utility model provides a prefabricated integral isolation bearing for stair structure, the work progress nodal connection is simple, and the assembly rate is high, and stability is good, and isolation bearing and stair form the frame construction that concrete and reinforcing bar combined together, and the earthquake-resistant intensity of seting up defences can reach 6-8 degrees, and the shock insulation rank is high.
In order to realize the purpose, the utility model discloses a technical scheme is:
a prefabricated integral shock insulation support for a stair structure comprises a support base body, a flexible deformation body and a connecting assembly, wherein the flexible deformation body and the connecting assembly are arranged in the support base body; the flexible deformation body comprises shock insulation rubber and a reserved deformation area arranged around the shock insulation rubber; the flexible deformation body is in an L-shaped structure; one end of the connecting component is arranged in the support base body and connected with the shock insulation rubber, and the connecting component, the flexible deformation body and the support base body are prefabricated into a whole; the other end of the connecting component is arranged outside the support base body.
Further, the flexible deformation body further comprises steel plates respectively arranged on the upper surface and the lower surface of the shock insulation rubber, and the connecting assembly is connected with the shock insulation rubber through the steel plates.
Further, the connecting assembly comprises a fastener and a support connecting steel bar; one end of the support connecting steel bar is arranged in the support base body, is connected with the steel plate through a fastener and is prefabricated with the support base body into a whole; the other end of the support connecting steel bar is arranged outside the support base body.
Furthermore, the support connecting steel bars comprise ladder beam section connecting steel bars and step section connecting steel bars; one end of the ladder beam section connecting steel bar is connected with the steel plate on the lower surface of the shock insulation rubber through a fastener, and the other end of the ladder beam section connecting steel bar extends out of the support base body; one end of the stepping section connecting steel bar is connected with a steel plate on the upper surface of the shock insulation rubber through a fastener; the other end of the stepping section connecting steel bar extends out of the support base body.
Further, the fastener is a bolt or an anchor bar.
Furthermore, the diameter of the fastening piece is more than or equal to 8mm, and the height of the fastening piece is more than or equal to 80 mm.
The utility model has the advantages that:
1. the utility model relates to a prefabricated integral shock insulation support for a stair structure, which comprises a support base body, a flexible deformation body and a connecting assembly, wherein the flexible deformation body and the connecting assembly are arranged in the support base body; the flexible deformation body is in an L-shaped structure; one end of the connecting component is arranged in the support base body and connected with the shock insulation rubber, and the connecting component, the flexible deformation body and the support base body are prefabricated into a whole; the other end of the connecting component is arranged outside the support base body. The support base body and arrange the flexible deformation body and the coupling assembling in the support base body in through the concrete prefabrication, form integral shock insulation support, rethread connecting piece is connected fixedly with stair step roof beam and stair step board, and during the construction, the nodal connection is simple, and the installation assembly is convenient, efficient.
2. The utility model arranges the prefabricated integral shock insulation support between the lower stair beam and the upper stair tread, and the connecting component is respectively connected with the lowest end step plate of the lower stair beam and the upper stair tread; the ladder beam section connecting steel bar extending out of the support base body is arranged in the lower stair beam; the connecting steel bars of the step sections extending out of the base body of the support are arranged in the step plates at the lowest ends of the stair treads at the upper part, then the concrete is poured, the lower stair step beams, the integral shock insulation support and the stair treads at the upper part form a frame structure combining the concrete and the steel bars, and the shock resistance is high.
3. The utility model discloses, the structure of flexible deformation body is the L physique, and the rubber shear modulus G of shock insulation rubber is 0.4MPa and is less than or equal to G and is less than or equal to 0.6MPa, and rubber ultimate tensile stress is greater than or equal to 1.5MPa, and rubber ultimate compressive stress is greater than or equal to 90 MPa. After the flexible deformation body and the support base body are prefabricated into the integral shock insulation support, when the seismic fortification intensity reaches 6-8 degrees, the integral shock insulation support has good shock resistance and high shock insulation level, and the safety of stairs is ensured.
4. The utility model discloses, the flexible deformation body comprises shock insulation rubber and a reserved deformation area arranged around the shock insulation rubber; and the reserved deformation area is filled with a flexible deformation material, the ultimate compressive strength of the flexible deformation material is less than 0.2MPa, the uniaxial ultimate compressive strain of the flexible deformation material is not less than 80%, the horizontal dislocation between the ladder plate and the ladder beam is ensured without being influenced by a building surface layer, and the stability is better.
Drawings
Fig. 1 is a schematic view of a seismic isolation bearing according to embodiment 1 provided by the present invention;
FIG. 2 is a schematic view of the seismic isolation mount of example 1 in a staircase installation;
FIG. 3 is a schematic front view of the seismic isolation bearing of embodiment 1 installed in a staircase;
FIG. 4 is a schematic top view of the seismic isolation bearing of example 1 installed in a staircase;
fig. 5 is a schematic view of a seismic isolation bearing according to embodiment 2 of the present invention;
FIG. 6 is a schematic view of the seismic isolation mount of example 2 in a staircase installation;
wherein:
1-a flexible deformable body; 2-shock insulation rubber; 3-a steel plate; 4-a fastener; 5, connecting the stepping section with a steel bar; 6, connecting reinforcing steel bars with the ladder beam section; 7, constructing a steel bar; 8-upper stair treads; 9-lower stair beam.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, the prefabricated integral seismic isolation bearing for the stair structure provided by the embodiment comprises a bearing base body, a flexible deformation body 1 and a connecting assembly, wherein the flexible deformation body 1 and the connecting assembly are arranged in the bearing base body, and the flexible deformation body 1, the connecting assembly and the bearing base body are prefabricated into a whole through concrete.
In the embodiment, the flexible deformation body 1 comprises a shock insulation rubber 2 and a reserved deformation area arranged around the shock insulation rubber 2; the flexible deformation body 1 is in an L-shaped structure; one end of the connecting component is arranged in the support base body and connected with the shock insulation rubber 2, and the connecting component, the flexible deformation body 1 and the support base body are prefabricated into a whole; the other end of the connecting component is arranged outside the support base body. The flexible deformation body 1 further comprises steel plates 3 respectively arranged on the upper surface and the lower surface of the shock insulation rubber 2, and the connecting assembly is connected with the shock insulation rubber 2 through the steel plates 3.
In the embodiment, the longitudinal section of the flexible deformation body 1 is L-shaped, the transverse end of the flexible deformation body is close to the step section of the stair, the shock insulation rubber 2 is arranged inside the transverse end, and the upper surface and the lower surface of the transverse end are respectively provided with the steel plates 3.
In this embodiment, seal plates are further bonded to the upper surface and the lower surface of the seismic isolation rubber 2, and the steel plate 3 is connected with the seal plates through screws.
In this embodiment, the connection assembly includes a fastener 4 and a support connection reinforcement; one end of the support connecting steel bar extends into the support base body and is connected with the steel plate 3 through a fastener 4; and is prefabricated with the outside of the support base body into a whole, and the other end of the support connecting steel bar is arranged outside the support base body.
In this embodiment, the support connecting reinforcement includes a ladder beam section connecting reinforcement 6 and a stepping section connecting reinforcement 5; one end of the ladder beam section connecting steel bar 6 is connected with the steel plate 3 on the lower surface of the shock insulation rubber 2 through a fastener 4, and the other end of the ladder beam section connecting steel bar 6 extends out of the support base body; one end of the stepping section connecting steel bar 5 is connected with a steel plate 3 on the upper surface of the shock insulation rubber 2 through a fastener 4; the other end of the stepping section connecting steel bar 5 extends out of the support base body.
In the present embodiment, the fastener 4 is a bolt; the diameter of the fastener 4 is 8mm, and the height of the fastener 4 is 80 mm.
Specifically, the number of the fasteners 4 is four, the four fasteners are divided into two groups, each group is two, the two fasteners 4 are longitudinally arranged in parallel and are symmetrically distributed along the axial direction of the seismic isolation rubber 2, and the distance between the two fasteners 4 is 150 mm. The ladder beam section connecting steel bar 6 is connected with the steel plate 3 at the lower surface of the shock insulation rubber 2 through a group of fasteners 4, and the step section connecting steel bar 5 is connected with the steel plate 3 at the upper surface of the shock insulation rubber 2 through another group of fasteners 4.
Referring to fig. 2, 3 and 4, the construction process of the prefabricated integral seismic isolation bearing provided by the embodiment is as follows:
1) manufacturing a prefabricated integral shock insulation support in a factory, and carrying to a construction site after curing and forming;
specifically, the flexible deformation body 1 is arranged in a support base, and one end of a ladder beam section connecting steel bar 6 is connected with a steel plate 3 on the upper surface of the shock insulation rubber 2 through a fastener 4; the step section connecting steel bars 5 are connected with the steel plates 3 on the lower surfaces of the shock insulation rubbers 2 through fasteners 4, then concrete is poured and cured, and an integral shock insulation support is prefabricated, wherein a pouring prefabricated area is shown as the range of a solid line frame in the figure 1;
2) installing templates for supporting a step plate at the lowest end of an upper stair step 8 and a lower stair step beam 9, and binding support connecting steel bars at corresponding positions;
3) mounting the prefabricated integrated shock insulation support between an upper stair tread 8 and a lower stair beam 9;
specifically, a ladder beam section connecting steel bar 6 arranged outside the support base is fixed with a lower stair beam 9; placing the step section connecting steel bar 5 outside the support base in the step plate at the lowest end of the upper stair tread 8; during connection, the ladder beam section connecting steel bars 6 and the step section connecting steel bars 5 are reinforced through the constructional steel bars 7;
4) concrete is poured among the step plate at the lowest end of the upper stair step 8, the prefabricated integral shock insulation support and the lower stair beam 9; the poured area is within the range of the dotted line frame shown in fig. 2;
5) and after maintenance and molding, removing the mold, completing construction, and forming a frame structure combining concrete and steel bars by using the lower stair beam 9 and the upper stair tread 8 through the integral shock insulation support (as shown in figures 3 and 4).
In the embodiment, the reserved deformation area is arranged in the flexible deformation body 1, and the reserved deformation area is filled with the flexible deformation material, the ultimate compressive strength of the flexible deformation material is less than 0.2MPa, and the uniaxial ultimate compressive strain of the flexible deformation material is 80%, so that the horizontal dislocation between the ladder plate and the ladder beam is ensured without being influenced by a building surface layer, and the stability is better; meanwhile, the rubber shear modulus G of the shock insulation rubber 2 is 0.4MPa, the rubber ultimate tensile stress is 1.5MPa, the ultimate compressive stress is 90MPa, and when the seismic fortification intensity reaches 6-8 degrees, the shock insulation rubber has good shock resistance and ensures the safety of the stairs.
In this embodiment, the section of marking time connecting reinforcement 5 slope setting, and the angle of inclination between section of marking time connecting reinforcement 5 and the horizontal plane equals with the gradient of upper portion stair tread 8. Specifically, terraced roof beam section joint bar 6 is L shape, and terraced roof beam section joint bar 6, and its horizontal segment passes through fastener 4 and is fixed with steel sheet 3, and terraced roof beam section joint bar 6's horizontal segment length is 300 mm.
Example 2
Referring to fig. 5 and 6, unlike embodiment 1: the fasteners 4 adopt anchor bars, and the distance between the two fasteners 4 is 200 mm. The diameter of the fastener 4 is 10mm and the height of the fastener 4 is 100 mm. Trapezoidal beam section connecting reinforcement 6 is L shape, and the horizontal segment passes through fastener 4 and fixes with steel sheet 3, and trapezoidal beam section connecting reinforcement 6's horizontal segment length is 600 mm.
In the embodiment, the rubber shear modulus G of the vibration isolation rubber 2 is 0.6MPa, the ultimate tensile stress of the rubber is 2.0MPa, and the ultimate compressive stress is 100 MPa. The ultimate compressive strength of the flexibly deformable material is 0.16MPa, and the uniaxial ultimate compressive strain thereof is 85 percent.
In the embodiment, the prefabricated integral type shock insulation support is positioned between the lower end (the lowest end tread plate) of the reinforced concrete plate type stair tread and the stair beam, and is connected with peripheral concrete into a whole through anchor bars on a steel plate 3, and one end of a support connecting steel bar is embedded into the concrete in the shock insulation support during prefabrication; the prefabricated integral shock insulation support is respectively connected with a step plate at the lowest end of an upper stair step 8 and a lower stair step beam 9 through connecting steel bars arranged outside the shock insulation support; after the installation is finished, concrete is poured among the step plate at the lowest end of the upper stair step 8, the prefabricated integral shock insulation support and the lower stair beam 9; the poured area is the dotted line range shown in fig. 6.
The flexible deformation body is internally provided with a deformation area which is filled with flexible deformation materials, so that the ladder plate and the ladder beam can be horizontally staggered without being influenced by a building surface layer, and the stability is good; the prefabricated integral shock insulation support is arranged between the step plate at the lowest end of the upper stair step 8 and the lower stair step beam 9 by adopting support connecting steel bars, then concrete pouring is carried out, and the construction joint connection is simple and the assembly rate is high; the upper stair treads 8, the prefabricated integral shock insulation support and the lower stair step beam 9 form a frame structure combining concrete and reinforcing steel bars, and the shock insulation performance is high.
Claims (6)
1. The utility model provides a prefabricated integral shock insulation support for stair structure which characterized in that: the prefabricated integral shock insulation support for the stair structure comprises a support base body, and a flexible deformation body (1) and a connecting assembly which are arranged in the support base body; the flexible deformation body (1) comprises shock insulation rubber (2) and a reserved deformation area arranged around the shock insulation rubber (2); the flexible deformation body (1) is in an L-shaped structure; one end of the connecting component is arranged in the support base body and connected with the shock insulation rubber (2), and the connecting component, the flexible deformation body (1) and the support base body are prefabricated into a whole; the other end of the connecting component is arranged outside the support base body.
2. The prefabricated integrated seismic isolation bearing for a stair structure according to claim 1, wherein: the flexible deformation body (1) further comprises steel plates (3) respectively arranged on the upper surface and the lower surface of the shock insulation rubber (2), and the connecting assembly is connected with the shock insulation rubber (2) through the steel plates (3).
3. The prefabricated integrated seismic isolation bearing for a stair structure according to claim 2, wherein: the connecting assembly comprises a fastener (4) and a support connecting steel bar; one end of the support connecting steel bar is arranged in the support base body, is connected with the steel plate (3) through a fastener (4) and is prefabricated into a whole with the support base body; the other end of the support connecting steel bar is arranged outside the support base body.
4. The prefabricated integrated seismic isolation bearing for a stair structure according to claim 3, wherein: the support connecting steel bars comprise ladder beam section connecting steel bars (6) and step section connecting steel bars (5); one end of the ladder beam section connecting steel bar (6) is connected with the steel plate (3) on the lower surface of the shock insulation rubber (2) through a fastener (4), and the other end of the ladder beam section connecting steel bar (6) extends out of the support base body; one end of the step section connecting steel bar (5) is connected with a steel plate (3) on the upper surface of the shock insulation rubber (2) through a fastener (4); the other end of the step section connecting steel bar (5) extends out of the support base body.
5. The prefabricated integrated seismic isolation bearing for a stair structure according to claim 4, wherein: the fastening piece (4) is a bolt or an anchor bar.
6. The prefabricated integrated seismic isolation bearing for a stair structure according to claim 5, wherein: the diameter of the fastening piece (4) is more than or equal to 8mm, and the height of the fastening piece (4) is more than or equal to 80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719895.1U CN212271445U (en) | 2020-08-17 | 2020-08-17 | A prefabricated integral shock insulation support for stair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719895.1U CN212271445U (en) | 2020-08-17 | 2020-08-17 | A prefabricated integral shock insulation support for stair structure |
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| Publication Number | Publication Date |
|---|---|
| CN212271445U true CN212271445U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021719895.1U Active CN212271445U (en) | 2020-08-17 | 2020-08-17 | A prefabricated integral shock insulation support for stair structure |
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| CN (1) | CN212271445U (en) |
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- 2020-08-17 CN CN202021719895.1U patent/CN212271445U/en active Active
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Effective date of registration: 20240304 Address after: No.98, middle section of Wenjing Road, economic development zone, Xi'an City, Shaanxi Province, 710038 Patentee after: CHINA NORTHWEST ARCHITECTURE DESIGN AND RESEARCH INSTITUTE Co.,Ltd. Country or region after: China Patentee after: China Construction Zhen'an Technology Engineering Co.,Ltd. Address before: No.98, middle section of Wenjing Road, economic development zone, Xi'an City, Shaanxi Province, 710038 Patentee before: CHINA NORTHWEST ARCHITECTURE DESIGN AND RESEARCH INSTITUTE Co.,Ltd. Country or region before: China |