Fabricated structural steel stair with built-in reinforcing ribs
By using a prefabricated steel staircase with built-in reinforcing ribs, the problems of high noise, long construction period, and pollution associated with cast-in-place concrete staircases have been solved, achieving lightweight and noise reduction effects and lowering construction costs.
Patent Information
- Application Number
- CN202520111204.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Cast-in-place concrete staircases are noisy, have long construction periods, high costs, and pollute the environment, while precast steel staircases have uneven weight distribution and also cause noise problems.
The steel staircase adopts a prefabricated, internally reinforced structure, including treads, mezzanine components, and side uprights. The mezzanine components are equipped with sound-absorbing holes and honeycomb-shaped ash holes. The noise is reduced by using the reinforcing ribs and sound-absorbing holes, and the bottom steel plate is filled with putty to improve stability.
This approach reduces the weight and noise of the staircase, improves stability and sound insulation, and also reduces construction noise and costs.
Smart Images
Figure CN223724047U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to prefabricated steel stair technical field, concretely is assembly type built -in reinforcing rib structure steel stair. BACKGROUND
[0002] The stair is built and adopts the mode of cast -in -situ concrete, and the cast -in -situ concrete is difficult to condense and inject, is big in construction process noise, long in period, slow in speed, high in cost, and easy to cause pollution to the scene environment, so, with the industrial development, the prefabricated steel stair is gradually produced, and the prefabricated steel stair is mostly composed of a certain thickness of foot -rest piece and side vertical plate piece splicing, and is put into use in construction engineering.
[0003] And the foot -rest piece commonly used in the prefabricated steel stair now, to guarantee the thickness demand mostly chooses full solid steel to make, is too heavy, and the box type hollow steel is selected and is relatively empty, and it is easy to produce big noise when walking.
[0004] Based on this, the utility model designs assembly type built -in reinforcing rib structure steel stair to solve the above -mentioned problems. SUMMARY
[0005] The utility model discloses assembly type built -in reinforcing rib structure steel stair to solve the above -mentioned technical problem.
[0006] To realize the above -mentioned purpose, the utility model provides the following technical scheme: assembly type built -in reinforcing rib structure steel stair, comprising: step piece and two side vertical plate pieces, and the interlayer piece set up in the step piece,
[0007] The step piece includes decorative cover plate and bottom sealing steel plate, and the interlayer piece is set up between decorative cover plate and bottom sealing steel plate,
[0008] The interlayer piece includes step bottom plate, middle partition fixed on the top of step bottom plate and first cross reinforcing rib fixed between step bottom plate and middle partition, and a plurality of sound holes are sequentially formed in the top of middle partition,
[0009] The side vertical plate piece includes two stair side plates and second cross reinforcing rib fixed between two stair side plates.
[0010] Preferably, a plurality of mortar holes are formed in the outer wall of bottom sealing steel plate, and the plurality of mortar holes are distributed in the bottom sealing steel plate in a honeycomb shape, and the mortar holes are filled with mortar.
[0011] Preferably, a third cross reinforcing rib is fixed on the top of bottom sealing steel plate.
[0012] Preferably, the step piece further includes first vertical plate and second vertical plate, and the first vertical plate and the second vertical plate are fixed between the decorative cover plate and the bottom sealing steel plate.
[0013] Preferably, the sandwich piece is wrapped and fixed between the decorative cover plate, the first vertical plate, the second vertical plate and the third cross stiffener between the bottom steel plate.
[0014] Preferably, the decorative cover plate and the bottom steel plate of the step piece are fixed to the outer walls of the two side vertical plate pieces, respectively.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] Firstly, the step piece, the sandwich piece and the side vertical plate piece are respectively internally provided with the first cross stiffener, the second cross stiffener and the third cross stiffener, thereby guaranteeing the thickness requirement and stability and reducing the overall weight.
[0017] Secondly, when a person walks through the step piece, the plurality of sound holes of the partition plate provide the sound reduction capability when the person walks.
[0018] Thirdly, the bottom steel plate is embedded with putty through the honeycomb-shaped holes, thereby improving the characteristics of the bottom steel plate, and the putty is evenly embedded into the bottom steel plate through the holes, thereby guaranteeing that the putty does not crack under vibration. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the drawings without creative labor.
[0020] Figure 1 It is the overall structure schematic view of the embodiment;
[0021] Figure 2 It is the highlighted sandwich piece structure schematic view of the embodiment;
[0022] Figure 3 It is the highlighted side vertical plate piece structure schematic view of the embodiment;
[0023] Figure 4 It is the highlighted bottom steel plate structure schematic view of the embodiment.
[0024] In the drawings, the component list represented by each sign is as follows:
[0025] 1, staircase side plate; 2, decorative cover plate; 3, partition plate; 4, step bottom plate; 5, first cross stiffener; 6, sound hole; 7, first vertical plate; 8, bottom steel plate; 9, second cross stiffener; 10, hole; 11, third cross stiffener; 12, second vertical plate. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: assembly type built-in reinforcing rib structure steel stair, include: step piece and two side vertical plate piece, and the interlayer piece of setting in step piece,
[0028] Step piece includes decorative cover plate 2 and bottom sealing steel plate 8, and the interlayer piece is set between decorative cover plate 2 and bottom sealing steel plate 8,
[0029] The interlayer piece includes step bottom plate 4, middle partition plate 3 fixed on the top of step bottom plate 4 and first cross reinforcing rib 5 fixed between step bottom plate 4 and middle partition plate 3, and a plurality of sound holes 6 are sequentially arranged on the top of middle partition plate 3,
[0030] The side vertical plate piece includes two stair side plates 1 and second cross reinforcing rib 9 fixed between the two stair side plates 1,
[0031] The decorative cover plate 2 and the bottom sealing steel plate 8 of the step piece and the interlayer piece constitute the main body of the step piece, and support the person to tread and walk, wherein the interlayer piece is fixedly composed of the step bottom plate 4 and the middle partition plate 3, the top of the middle partition plate 3 is in contact with the decorative cover plate 2, the first cross reinforcing rib 5 is used for improving the overall stability, the sound holes 6 of the middle partition plate 3 are used for providing the sound reduction capacity when the person treads and walks, and the side vertical plate piece is provided with the two stair side plates 1 and the second cross reinforcing rib 9, so that the thickness requirement is ensured and the weight is reduced.
[0032] Further preferably, a plurality of ash holes 10 are arranged on the outer wall of the bottom sealing steel plate 8, the plurality of ash holes 10 are distributed in the honeycomb shape on the bottom sealing steel plate 8, and the ash holes 10 are filled with atomized ash,
[0033] The bottom sealing steel plate 8 is filled with the atomized ash in the honeycomb shape, the atomized ash penetrates into the bottom sealing steel plate 8 through the ash holes 10, the atomized ash is prevented from cracking under vibration, the atomized ash is a filling material composed of main ash (base ash) and curing agent, the atomized ash is used for filling and modifying the defects such as pits, pinholes, cracks and small welds of the bottom sealing steel plate 8, and the surface of the bottom sealing steel plate 8 is ensured to be flat and smooth.
[0034] Further preferably, a third cross reinforcing rib 11 is fixed on the top of the bottom sealing steel plate 8,
[0035] The third cross stiffener 11 of the bottom sealing steel plate 8 uniformly supports the space between the interlayer and the bottom sealing steel plate 8, and improves stability.
[0036] Further preferably, the step part further comprises a first vertical plate 7 and a second vertical plate 12, and the first vertical plate 7 and the second vertical plate 12 are fixed between the decorative cover plate 2 and the bottom sealing steel plate 8.
[0037] The step part is fully packaged by the first vertical plate 7 and the second vertical plate 12, so that the step part is more compact.
[0038] Further preferably, the interlayer is wrapped and fixed between the decorative cover plate 2, the first vertical plate 7, the second vertical plate 12 and the third cross stiffener 11 of the bottom sealing steel plate 8.
[0039] The interlayer is fixed with the decorative cover plate 2, the first vertical plate 7, the second vertical plate 12 and the third cross stiffener 11 of the bottom sealing steel plate 8, and mutual cooperation guarantees sufficient stability.
[0040] Further preferably, the decorative cover plate 2 and the bottom sealing steel plate 8 of the step part are respectively fixed to the outer wall of the stair side plate 1 of the two side vertical plate parts.
[0041] The step part and the decorative cover plate 2 are fixedly connected to form the entire assembled prefabricated steel stair.
[0042] One specific application of the embodiment is that the entire steel stair is composed of the step part, the interlayer and the two side vertical plate parts, wherein all the plate parts except the decorative cover plate 2, the first vertical plate 7 and the second vertical plate 12 are made of steel, the decorative cover plate 2, the first vertical plate 7 and the second vertical plate 12 are external decorative plates such as stone and ceramic tiles, the decorative cover plate 2, the bottom sealing steel plate 8, the first vertical plate 7 and the second vertical plate 12 in the step part are fixed to each other, the interlayer has the first cross stiffener 5, and the interlayer has the third cross stiffener 11 between the interlayer and the bottom sealing steel plate 8, and after mutual assembly, a hollow box type steel step part is formed, which is light in weight and relatively stable, the decorative cover plate 2 is used for people to walk, and people walk on the decorative cover plate 2, and since the bottom of the decorative cover plate 2 is in contact with the partition plate 3 of the interlayer, the sound insulation hole 6 in the outer wall of the partition plate 3 is used for sound insulation and noise reduction treatment of the step.
[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0044] In the utility model, unless another explicit provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or become an integral whole, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be two element internal communication or two element's mutual action relation, unless another explicit limitation, for the ordinary skill in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.
[0045] Although the embodiments of the utility model have been shown and described, for the ordinary skill in the art, can understand that these embodiments can be varied, modified, replaced and changed in many ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.
Claims
1. A fabricated steel stair with built-in reinforcement structure, characterized in that, Include: Step piece and two side vertical plate piece; And set in the step piece interlayer piece; The step piece includes a decorative cover plate (2) and a bottom sealing steel plate (8), and the interlayer piece is arranged between the decorative cover plate (2) and the bottom sealing steel plate (8); The interlayer piece includes a step bottom plate (4), a partition plate (3) fixed to the top of the step bottom plate (4), and a first cross stiffener (5) fixed between the step bottom plate (4) and the partition plate (3), and a plurality of sound holes (6) are sequentially arranged on the top of the partition plate (3); The side vertical plate piece includes two stair side plates (1) and a second cross stiffener (9) fixed between the two stair side plates (1).
2. The prefabricated built-in reinforcing rib structure steel stair according to claim 1, characterized in that: The outer wall of the bottom sealing steel plate (8) is provided with a plurality of ash holes (10), and the plurality of ash holes (10) are distributed in the bottom sealing steel plate (8) in a honeycomb shape, and the ash holes (10) are filled with putty.
3. The prefabricated built-in reinforcing rib structure steel stair according to claim 2, characterized in that: The top of the bottom sealing steel plate (8) is fixed with a third cross stiffener (11).
4. The prefabricated built-in reinforcing rib structure steel stair according to claim 3, characterized in that: The step piece further includes a first vertical plate (7) and a second vertical plate (12), and the first vertical plate (7) and the second vertical plate (12) are fixed between the decorative cover plate (2) and the bottom sealing steel plate (8).
5. The prefabricated built-in reinforcing rib structure steel stair according to claim 4, characterized in that: The interlayer piece is wrapped and fixed between the decorative cover plate (2), the first vertical plate (7), the second vertical plate (12) and the third cross stiffener (11) of the bottom sealing steel plate (8).
6. The prefabricated built-in reinforcing rib structure steel stair according to claim 1, characterized in that: The decorative cover plate (2) and the bottom sealing steel plate (8) of the step piece are respectively fixed to the outer wall of the stair side plate (1) of the two side vertical plate pieces.