CN208023855U - A kind of reinforced concrete stairs seismic reinforcing structure - Google Patents
A kind of reinforced concrete stairs seismic reinforcing structure Download PDFInfo
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- CN208023855U CN208023855U CN201820429052.4U CN201820429052U CN208023855U CN 208023855 U CN208023855 U CN 208023855U CN 201820429052 U CN201820429052 U CN 201820429052U CN 208023855 U CN208023855 U CN 208023855U
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- steel plate
- groove
- staircase boards
- junction steel
- rubber
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Abstract
A kind of reinforced concrete stairs seismic reinforcing structure is related to a kind of stair seismic reinforcing structure.It is fixed with staircase boards between upper mounting plate pedestal and lower platform pedestal, lower platform pedestal is arranged with the cut-out of staircase boards link position level, the section of lower platform pedestal is set along its width direction there are two lower groove, the section of staircase boards is set along its width direction there are two upper groove, per installation between corresponding upper groove and lower groove, there are one lead core rubber supports, and staircase boards bottom is pasted with FRP and is reinforced.Structure power transmission mechanism is clear, reasonable, is flexibly connected using lead core rubber support between staircase boards and lower platform pedestal, mitigates geological process.
Description
Technical field
The utility model is related to a kind of stair seismic reinforcing structure, especially a kind of reinforced concrete stairs seismic hardening knot
Structure.
Background technology
All previous seimic disaster census is found both at home and abroad, and reinforced concrete frame structure stair often occur under geological process
Serious destruction, most common failure mode are exactly and landing slab（Beam）Connected frame column destroys, this is because stair
And landing slab（Beam）Presence to frame can play the role of " K " type support, make frame column formed short column, it is pre- to change frame column
The force modes of phase, occur failure by shear under geological process or curved scissors destroys, since the failure of staircase frame column is exited
Work may also cause the continuous collapse of total.In actual seismic, there is complexity between stair and agent structure component
Interaction force, but in seismic design of structures, stair are the seismic Calculations that structure is not involved in as non-structural element, are ignored
Adverse effect of the presence of stair to structure.
In view of the experience of all previous earthquake, earthquake resistant code in 2010 has explicitly pointed out：" in view of the gangboard etc. of stair has
The stress of diagonal brace has obvious influence, it is proposed that give with due regard in Structure Calculation to the overall stiffness of structure ",
Therefore the junction of floor and agent structure is used sliding support connection type by various fabricated constructions newly-built at present, to disappear
Except stair are to the active force and adverse effect of agent structure component.
However, for the reinforced concrete frame structure largely built according to old Specification Design, how to mitigate
Stair are to the adverse effect of agent structure shock resistance, the problem of being current urgent need to resolve.
Invention content
To solve the problems in the background art, the utility model provides a kind of reinforced concrete stairs seismic hardening knot
Structure.
Realize that above-mentioned purpose, the utility model take following technical proposals：A kind of reinforced concrete stairs seismic hardening knot
Structure, including lower platform pedestal, staircase boards, upper mounting plate pedestal, are fixedly installed between the upper mounting plate pedestal and lower platform pedestal
It further includes two lead core rubber supports, the lower platform to have staircase boards, the reinforced concrete stairs seismic reinforcing structure
The cut-out of pedestal and staircase boards link position level is arranged, and the section of lower platform pedestal sets that there are two recessed along its width direction
Slot, the sections of the staircase boards set that there are two upper groove, described two upper grooves and described two along its width direction
A lower groove is arranged in a one-to-one correspondence, and two upper grooves penetrate through with staircase boards rear and are arranged, and two lower grooves are and lower platform
The perforation setting of pedestal rear, per installation between corresponding upper groove and lower groove, there are one lead core rubber support, staircase boards bottoms
FRP is pasted with to be reinforced.
Compared with prior art, the utility model has the beneficial effects that：
1. the utility model structure power transmission mechanism is clear, reasonable, lead-rubber is used between staircase boards and lower platform pedestal
Bearing is flexibly connected, and can both allow that relative deformation occurs between staircase boards and lower platform pedestal under geological process, but also
It can be consumed energy by lead core rubber support, mitigate geological process, since the energy-dissipating and shock-absorbing of lead core rubber support acts on, staircase phase
It is safer for structure division adjacent thereto, the temporary shelter place in earthquake is can be used as, while also can preferably play it
Effect as Emergency Access；
2. the prior art after being transformed reinforcing to stair, does not consider its stress after the boundary condition change of staircase boards both ends
The variation of state, staircase boards itself may destroy under live load and self gravitation effect, and the utility model is to avoid
After staircase boards both ends boundary condition changes, the variation of staircase boards stress itself and the deficiency of arrangement of reinforcement, using FRP to staircase boards
It reinforces, it is convenient and safe；
3., can be by replacing fast quick-recovery normal use work(after major injury occurs for lead core rubber support under geological process
Energy.
Description of the drawings
Fig. 1 is the structural schematic diagram of the reinforced concrete stairs seismic reinforcing structure of the utility model；
Fig. 2 is the axonometric drawing of the lead core rubber support of the utility model；
Fig. 3 is the A direction views of Fig. 1.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, to the technical solution in the utility model carry out it is clear,
It being fully described by, it is clear that described embodiment is only a part of the embodiment of utility model, instead of all the embodiments,
It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present invention
Every other embodiment, shall fall within the protection scope of the present invention.
Specific implementation mode one：As shown in Fig. 1 ~ Fig. 3, the utility model discloses a kind of reinforced concrete stairs antidetonations to add
Fixing structure, including lower platform pedestal 1, staircase boards 2, upper mounting plate pedestal 3, between the upper mounting plate pedestal 3 and lower platform pedestal 1
Staircase boards 2 are fixedly installed, the reinforced concrete stairs seismic reinforcing structure further includes two lead core rubber supports 6, institute
The lower platform pedestal 1 stated is arranged with the cut-out of 2 link position level of staircase boards, and the section of lower platform pedestal 1 is along its width direction
If there are two lower groove 5, the sections of the staircase boards 2 is set along its width direction there are two upper groove 4, on described two
Groove 4 is arranged in a one-to-one correspondence with two lower grooves 5, and two upper grooves 4 penetrate through with 2 rear of staircase boards and are arranged, and two
A lower groove 5, which is penetrated through with 1 rear of lower platform pedestal, to be arranged, and per installation between corresponding upper groove 4 and lower groove 5, there are one lead
Core rubber support 6,2 bottom of staircase boards are pasted with FRP7 and are reinforced.
Specific implementation mode two：As shown in Fig. 2, present embodiment is made furtherly to specific implementation mode one
It is bright, two lead core rubber supports 6 include upper junction steel plate 6-1, rubber protection cylinder 6-2, lower junction steel plate 6-3,
Lead for retractable pencil 6-6, more internal rubber 6-4 and more internal steel plate 6-5, the upper junction steel plate 6-1 and lower junction steel plate 6-3 are equal
For circular steel plate and horizontal alignment setting up and down, the lower surfaces upper junction steel plate 6-1 center are fixedly installed round sealing plate 6-8,
The upper surfaces the lower junction steel plate 6-3 center is fixedly installed lower round sealing plate 6-7, and the rubber protects cylinder 6-2 to insert
Between the upper circle sealing plate 6-8 and lower round sealing plate 6-7, the lead for retractable pencil 6-6 shapes are round bar shape and coaxially set
It being placed in inside rubber protection cylinder 6-2, the more internal rubber 6-4 and more internal steel plate 6-5 shapes are annular shape,
And it is arranged alternatively up and down between rubber protects cylinder 6-2 and lead for retractable pencil 6-6.
Specific implementation mode three：As shown in Figure 1 and 2, present embodiment is made furtherly to specific implementation mode two
Bright, the upper junction steel plate 6-1 and lower junction steel plate 6-3 of each lead core rubber support 6 are uniform along its circumferencial direction respectively
Equipped with multiple bolt mounting holes, each bolt mounting holes are corresponding with a fixing bolt, the upper junction steel plate 6-1
And lower junction steel plate 6-3 is affixed by fixing bolt described in more and corresponding upper groove 4 and 5 groove bottom of lower groove respectively.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in the form of others dress body
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that the condition of equivalent for falling in claim is contained
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (3)
1. a kind of reinforced concrete stairs seismic reinforcing structure, including lower platform pedestal（1）, staircase boards（2）, upper mounting plate pedestal
（3）, the upper mounting plate pedestal（3）With lower platform pedestal（1）Between be fixedly installed staircase boards（2）, it is characterised in that：It is described
Reinforced concrete stairs seismic reinforcing structure further include two lead core rubber supports（6）, the lower platform pedestal（1）With building
Gangboard（2）The cut-out setting of link position level, lower platform pedestal（1）Section set there are two lower groove along its width direction
（5）, the staircase boards（2）Section set there are two upper groove along its width direction（4）, two upper grooves（4）
With two lower grooves（5）It is arranged in a one-to-one correspondence, and two upper grooves（4）And staircase boards（2）Rear perforation setting, two
A lower groove（5）With lower platform pedestal（1）Rear perforation setting, per corresponding upper groove（4）With lower groove（5）Between install
There are one lead core rubber supports（6）, staircase boards（2）Bottom is pasted with FRP（7）It is reinforced.
2. a kind of reinforced concrete stairs seismic reinforcing structure according to claim 1, it is characterised in that：Described two
Lead core rubber support（6）It include upper junction steel plate（6-1）, rubber protect cylinder（6-2）, lower junction steel plate（6-3）, lead for retractable pencil
（6-6）, more internal rubber（6-4）And more internal steel plate（6-5）, the upper junction steel plate（6-1）And lower junction steel plate
（6-3）It is circular steel plate and horizontal alignment setting up and down, upper junction steel plate（6-1）Lower surface center is fixedly installed circle
Sealing plate（6-8）, the lower junction steel plate（6-3）Upper surface center is fixedly installed lower round sealing plate（6-7）, the rubber
Protect cylinder（6-2）It is inserted into the upper round sealing plate（6-8）And lower round sealing plate（6-7）Between, the lead for retractable pencil（6-6）
Shape is round bar shape and is coaxially disposed in rubber protection cylinder（6-2）Inside, the more internal rubber（6-4）And in multilayer
Portion's steel plate（6-5）Shape is annular shape, and is arranged protects cylinder in rubber alternatively up and down（6-2）With lead for retractable pencil（6-6）Between.
3. a kind of reinforced concrete stairs seismic reinforcing structure according to claim 2, it is characterised in that：Described in each
Lead core rubber support（6）Upper junction steel plate（6-1）And lower junction steel plate（6-3）It is uniformly provided with respectively along its circumferencial direction multiple
Bolt mounting holes, each bolt mounting holes are corresponding with a fixing bolt, the upper junction steel plate（6-1）And lower company
Connect steel plate（6-3）Pass through fixing bolt described in more and corresponding upper groove respectively（4）And lower groove（5）Groove bottom is affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429052.4U CN208023855U (en) | 2018-03-28 | 2018-03-28 | A kind of reinforced concrete stairs seismic reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429052.4U CN208023855U (en) | 2018-03-28 | 2018-03-28 | A kind of reinforced concrete stairs seismic reinforcing structure |
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| Publication Number | Publication Date |
|---|---|
| CN208023855U true CN208023855U (en) | 2018-10-30 |
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ID=63908492
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820429052.4U Active CN208023855U (en) | 2018-03-28 | 2018-03-28 | A kind of reinforced concrete stairs seismic reinforcing structure |
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| CN (1) | CN208023855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277937A (en) * | 2018-03-28 | 2018-07-13 | 中国地震局工程力学研究所 | A kind of reinforced concrete stairs seismic reinforcing structure and its remodeling method |
-
2018
- 2018-03-28 CN CN201820429052.4U patent/CN208023855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277937A (en) * | 2018-03-28 | 2018-07-13 | 中国地震局工程力学研究所 | A kind of reinforced concrete stairs seismic reinforcing structure and its remodeling method |
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