Special-shaped steel structure stair

Abstract

The utility model relates to steel structure manufacturing technical field, concretely relates to a special-shaped steel structure stair, including stair body, stair body includes steel step ladder subassembly and the outside steel guardrail and the inside steel guardrail fixed in steel step ladder subassembly both sides respectively, steel step ladder subassembly includes first steel step ladder, second steel step ladder and third steel step ladder, first steel step ladder is convex and presents the fan shape, the inside width of second steel step ladder is less than the outside width, the width of third steel step ladder both sides is equal, the curvature radius of outside steel guardrail front middle segment is greater than the curvature radius of inside steel guardrail. The utility model discloses a special-shaped steel structure stair forms the compound structure of the outward expansion type anti -twist and the inward retraction type pressure -bearing through the asymmetric curvature design of outside steel guardrail and inside steel guardrail, promotes its anti -twist stiffness and disperses stress concentration, and the asymmetric curvature of outside steel guardrail and inside steel guardrail gives the stair space aesthetics.

Description

Technical Field

[0001] This utility model relates to the field of steel structure manufacturing technology, specifically to an irregularly shaped steel structure staircase. Background Technology

[0002] In recent years, steel structure staircases have been widely used in public buildings, commercial spaces, and modern residences due to their high strength, convenient construction, and flexible design. Irregularly shaped steel structure staircases, as a design form that combines functionality and aesthetics, are gradually becoming a visual focal point in architectural spaces. However, existing irregularly shaped steel structure staircases still have many shortcomings in terms of structural strength, appearance design, and user comfort. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an irregularly shaped steel structure staircase.

[0004] The objective of this utility model is achieved through the following technical solution: an irregularly shaped steel structure staircase, comprising at least one staircase body, the staircase body comprising a steel step assembly and outer steel railings and inner steel railings respectively fixed to both sides of the steel step assembly, the outer steel railing comprising a first starting section, a first arc-shaped section and a first ending section connected sequentially from bottom to top, the inner steel railing comprising a second starting section, a second arc-shaped section and a second ending section connected sequentially from bottom to top, the steel step assembly comprising a first steel step welded between the first starting section and the second starting section, a second steel step welded between the first arc-shaped section and the second arc-shaped section, and a third steel step welded between the first ending section and the second ending section, the first steel step convexly fan-shaped, the inner width of the second steel step being less than the outer width, the widths on both sides of the third steel step being equal, and the radii of curvature of the first starting section and the first arc-shaped section being greater than the radii of curvature of the second starting section and the second arc-shaped section.

[0005] Furthermore, the first, second, and third steel steps are all composed of several treads and several kick plates connected alternately from bottom to top.

[0006] Furthermore, the tread thickness of the second steel staircase is greater than that of the first and third steel staircases.

[0007] Furthermore, the top of the treads of the first, second, and third steel steps are all provided with anti-slip textures.

[0008] Furthermore, the curvature difference between the outer and inner steel guardrails relative to each other is less than or equal to 0.8m. -1 .

[0009] Furthermore, the kick plate height of the first, second, and third steel steps is 160-190mm.

[0010] Furthermore, the height difference between adjacent kick plates of the first, second, and third steel steps is less than or equal to 5 mm.

[0011] Furthermore, the number of staircase bodies is two, the two staircase bodies are arranged opposite each other, and a staircase platform is fixed between the tops of the two staircase bodies.

[0012] Furthermore, multiple support columns are fixed at the bottom of the stair platform.

[0013] The beneficial effects of this utility model are as follows: The irregular steel structure staircase of this utility model forms an outward-expanding, torsion-resistant, and inward-retracting pressure-bearing composite structure through the asymmetrical curvature design of the outer and inner steel railings, significantly improving its torsional stiffness and dispersing stress concentration. The first steel step is fan-shaped, expanding the entrance space; the second steel step is wider on the inside and narrower on the outside to adapt to the bending moment of the curved steel beam; the third steel step is of equal width to ensure stability at the end. The three components work together to enhance the lateral bearing capacity of the steel beam, and the asymmetrical curvature of the outer and inner steel railings gives the staircase a spatial aesthetic. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention.

[0015] Figure 2 This is a top view of the staircase body described in this utility model.

[0016] Figure 3 yes Figure 2 View from the AA direction.

[0017] The attached diagram is labeled as follows: 1. Staircase body; 2. Steel staircase assembly; 21. First steel staircase; 22. Second steel staircase; 23. Third steel staircase; 3. Outer steel railing; 3. First starting section; 31. First curved section; 32. First ending section; 33. Inner steel railing; 4. Second starting section; 41. Second curved section; 42. Second ending section; 43. Tread; 5. Kickboard; 6. Staircase platform; 7. Support column; 8. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figures 1-3 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0019] See Figures 1-3A non-standard steel structure staircase includes at least one staircase body 1. The staircase body 1 includes a steel step assembly 2 and outer steel railings 3 and inner steel railings 4 respectively fixed to both sides of the steel step assembly 2. The outer steel railing 3 includes a first starting section 31, a first arc-shaped section 32 and a first ending section 33 connected sequentially from bottom to top. The inner steel railing 4 includes a second starting section 41, a second arc-shaped section 42 and a second ending section 43 connected sequentially from bottom to top. The steel step assembly 2 includes a section welded to the first starting section 31. The first steel step 21 between the second starting segment 41, the second steel step 22 welded between the first arc segment 32 and the second arc segment 42, and the third steel step 23 welded between the first ending segment 33 and the second ending segment 43. The first steel step 21 protrudes outward in a fan shape. The inner width of the second steel step 22 is smaller than the outer width. The widths on both sides of the third steel step 23 are equal. The radii of curvature of the first starting segment 31 and the first arc segment 32 are greater than the radii of curvature of the second starting segment 41 and the second arc segment 42.

[0020] This utility model's irregularly shaped steel structure staircase utilizes the asymmetrical curvature design of the outer steel railing 3 and the inner steel railing 4 to form an outwardly expanding, torsional-resistant, and inwardly contracting load-bearing composite structure, significantly improving its torsional stiffness and dispersing stress concentration. The first steel step 21 is fan-shaped, expanding the entrance space; the second steel step 22, wider at the inside and narrower at the outside, adapts to the bending moment of the curved steel beam; and the third steel step 23, of equal width, ensures stability at the end. These three elements work together to enhance the lateral load-bearing capacity of the steel beam, and the asymmetrical curvature of the outer steel railing 3 and the inner steel railing 4 adds to the staircase's spatial aesthetics.

[0021] In this embodiment, the first steel step ladder 21, the second steel step ladder 22 and the third steel step ladder 23 are all composed of several treads 5 and several kick plates 6 connected alternately from bottom to top.

[0022] In this embodiment, the thickness of the treads 5 of the second steel staircase 22 is greater than that of the treads 5 of the first steel staircase 21 and the third steel staircase 23. The second steel staircase 22 is located in the arc-shaped transition section and bears the maximum bending moment. Increasing its thickness can improve its bending strength and avoid local deformation.

[0023] In this embodiment, the top of the treads 5 of the first steel step ladder 21, the second steel step ladder 22, and the third steel step ladder 23 are all provided with anti-slip textures (not shown in the figure). By providing anti-slip textures, the user can be protected and prevented from falling.

[0024] In this embodiment, the curvature difference between the outer steel guardrail 3 and the inner steel guardrail 4 is less than or equal to 0.8m. -1 The curvature difference should be less than or equal to 0.8m. -1 This can prevent stress overload of the outer steel guardrail 3 and the inner steel guardrail 4 due to excessive curvature difference.

[0025] In this embodiment, the height of the kick plate 6 of the first steel staircase 21, the second steel staircase 22, and the third steel staircase 23 is 160-190mm. To achieve the best performance of this invention, the height of the kick plate 6 of the irregular staircase is 180mm.

[0026] In this embodiment, the height difference between adjacent kick plates 6 of the first steel staircase 21, the second steel staircase 22, and the third steel staircase 23 is less than or equal to 5mm. Consistent kick plate heights ensure a stable walking rhythm for pedestrians, avoiding the risk of tripping or misstepping due to sudden height changes, which is especially crucial for the elderly, children, and visually impaired individuals.

[0027] In this embodiment, there are two stair bodies 1, which are arranged opposite to each other, and a stair platform 7 is fixed between the tops of the two stair bodies 1.

[0028] In this embodiment, multiple support columns 8 are fixed to the bottom of the stair platform 7. The stair platform 7 is supported by the support columns 8.

[0029] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. An irregularly shaped steel structure staircase, comprising at least one staircase body, the staircase body including steel step components and outer steel railings and inner steel railings respectively fixed to both sides of the steel step components, characterized in that: The outer steel guardrail includes a first starting section, a first arc-shaped section, and a first ending section connected sequentially from bottom to top. The inner steel guardrail includes a second starting section, a second arc-shaped section, and a second ending section connected sequentially from bottom to top. The steel staircase assembly includes a first steel staircase welded between the first starting section and the second starting section, a second steel staircase welded between the first arc-shaped section and the second arc-shaped section, and a third steel staircase welded between the first ending section and the second ending section. The first steel staircase protrudes outward in a fan shape. The inner width of the second steel staircase is smaller than its outer width. The widths on both sides of the third steel staircase are equal. The radii of curvature of the first starting section and the first arc-shaped section are greater than the radii of curvature of the second starting section and the second arc-shaped section.

2. The irregular steel structure staircase according to claim 1, characterized in that: The first, second, and third steel steps are each composed of several treads and several kick plates connected alternately from bottom to top.

3. The irregular steel structure staircase according to claim 2, characterized in that: The thickness of the treads of the second steel staircase is greater than that of the treads of the first and third steel staircases.

4. The irregular steel structure staircase according to claim 2, characterized in that: The top of the treads of the first, second, and third steel steps are all provided with anti-slip textures.

5. The irregular steel structure staircase according to claim 1, characterized in that: The curvature difference between the outer and inner steel guardrails is less than or equal to 0.8m. -1 .

6. The irregular steel structure staircase according to claim 2, characterized in that: The kick plate height of the first, second, and third steel steps is 160-190mm.

7. The irregular steel structure staircase according to claim 2, characterized in that: The height difference between adjacent kick plates of the first, second, and third steel steps is less than or equal to 5 mm.

8. The irregular steel structure staircase according to claim 1, characterized in that: The staircase consists of two staircases, which are arranged opposite each other, with a staircase platform fixed between the tops of the two staircases.

9. A staircase with an irregular steel structure according to claim 8, characterized in that: The bottom of the stair platform is fixed with multiple support columns.

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