Steel pull rod suspension type large-span steel truss rotating stair structure

Abstract

The utility model provides a kind of steel pull rod suspension type large-span steel truss rotary stair structure, and structure form is efficient and simple, structure overall stiffness is good, stable performance is good, structural member scale is smaller, and spanning capacity is big.The utility model includes step structure, further includes spiral truss and steel pull rod;Spiral truss is helical line shape's space pipe truss, spiral truss includes truss upper chord, truss lower chord and truss web, and truss web is fixed between truss upper chord and truss lower chord;Steel pull rod upper end is connected on building main body, steel pull rod lower end is connected on the truss upper chord of spiral truss, and steel pull rod is obliquely downward suspended spiral truss;Step structure is fixed on the truss upper chord of spiral truss.

Description

Technical Field

[0001] This utility model belongs to the field of structural engineering technology in civil engineering, and in particular relates to a steel tie rod suspended large-span steel truss spiral staircase structure. Background Technology

[0002] Spiral staircases, with their streamlined and aesthetically pleasing design, not only provide basic passageway functionality in large public buildings but also serve as a visual focal point, adding unique design elements to the architecture.

[0003] Most common spiral staircases are central column spiral staircases, slab spiral staircases, or beam spiral staircases. When the spiral diameter is small, the structure itself has high vertical stiffness and can form a self-contained system without much additional support. However, as the spiral diameter increases, it becomes more difficult to meet the required structural stiffness for these types of spiral staircases, leading to a significant increase in component dimensions. This often results in higher costs and a poorer architectural appearance. Summary of the Invention

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a steel tie rod suspended large-span steel truss spiral staircase structure with efficient and simple structure, good overall rigidity and stability, small structural component size and large span capacity.

[0005] The technical solution adopted by this utility model to solve the above problems is: a steel tie rod suspended large-span steel truss spiral staircase structure, including a step structure, characterized in that: it also includes a spiral truss and steel tie rods; the spiral truss is a spatial tubular truss in the shape of a spiral, the spiral truss includes a truss upper chord, a truss lower chord and a truss web member, the truss web member being fixed between the truss upper chord and the truss lower chord; the upper end of the steel tie rod is connected to the main building structure, the lower end of the steel tie rod is connected to the truss upper chord of the spiral truss, and the steel tie rod suspends the spiral truss obliquely downward; the step structure is fixed to the truss upper chord of the spiral truss.

[0006] The spiral truss described in this utility model adopts a triangular, rectangular, or trapezoidal cross-section.

[0007] The steel tie rod described in this utility model is a solid finished steel tie rod, or a round steel pipe, rectangular steel pipe, steel bar, or steel cable.

[0008] The step structure described in this utility model includes a step steel plate and a step surface layer. The step steel plate is fixed on the upper chord of the spiral truss, and the step surface layer is fixed on the step steel plate.

[0009] The steel tie rod described in this utility model is connected at its upper end to the structural beams and columns of the main building structure.

[0010] The structural beams, structural columns, and truss upper chords of this utility model are all fixed with connecting members, and the ends of the steel tie rods are hinged to the connecting members.

[0011] Compared with the prior art, this utility model has the following advantages and effects: 1. This utility model has clearly defined components, a reasonable structure, and an efficient and simple form. The spiral truss features efficient structural stress distribution, good overall rigidity, large span capacity, and low steel consumption; the steel tie rods are characterized by high strength, good toughness, lightweight and aesthetically pleasing design, and safety and reliability. Using steel tie rods to suspend the spiral truss not only improves the load-bearing capacity and stability of the large-span spiral staircase structure and reduces deformation, but also ensures the building's lightweight appearance, resulting in good overall economic performance.

[0012] 2. This utility model boasts a beautiful appearance and diverse shapes. Varying the curved shape of the spiral truss and the combination of steel tie rods can generate a wide range of shapes, presenting different curvilinear and spatial aesthetics. All such steel tie rod suspended large-span steel truss spiral staircase structures can achieve a large column-free space. The spiral diameter of the staircase is large, the cross-section of the steel tie rods is small, resulting in good transparency. The overall structural shape is light and elegant, easily balancing the functionality and aesthetics of the building, and adaptable to various changing shapes. Attached Figure Description

[0013] Figure 1 This is a three-dimensional elevation view of the present invention.

[0014] Figure 2 This is a plan view of the spiral truss of this utility model.

[0015] Figure 3 This is a schematic diagram of the rectangular cross-section of the spiral truss of this utility model.

[0016] Figure 4 This is a schematic diagram of the connection between the steel tie rod and the spiral truss of this utility model.

[0017] Figure 5 This is a schematic diagram showing the connection between the steel tie rod of this utility model and the structural column of the building body.

[0018] Figure 6 This is a schematic diagram showing the connection between the steel tie rod of this utility model and the structural beam of the building body.

[0019] Figure 7 This is a schematic diagram of the step structure of this utility model. Detailed Implementation

[0020] The following describes in detail, with reference to the embodiments and accompanying drawings, a steel tie rod suspended large-span steel truss spiral staircase structure of this utility model.

[0021] This utility model embodiment includes a spiral truss 1, a steel tie rod 2, and a step structure 3.

[0022] The spiral truss 1 is a spiral-shaped spatial tubular truss and is the main load-bearing component of this utility model. Its outer diameter is 18m, and the width of the stair flight is 2m. The spiral truss 1 can adopt a triangular, rectangular, or trapezoidal cross-section according to architectural requirements, and the truss height is 800mm. In this embodiment, the spiral truss 1 adopts a rectangular cross-section. The spiral truss 1 includes an upper chord 6, a lower chord 7, and web members 8, which are fixed between the upper chord 6 and the lower chord 7.

[0023] The upper end of the steel tie rod 2 is connected to the structural beam 4 and structural column 5 of the main building structure, and the lower end of the steel tie rod 2 is connected to the outside of the upper chord 6 of the spiral truss 1. The steel tie rod 2 hangs the spiral truss 1 diagonally downwards. In this embodiment, connectors 11 are fixed to the structural beam 4, structural column 5, and upper chord 6 of the truss, and the end of the steel tie rod 2 is hinged to the connector 11. The steel tie rod 2 is generally made of high-strength solid finished steel tie rod, but round steel pipe, rectangular steel pipe, steel bar, or steel cable can also be used. In this embodiment, the steel tie rod 2 has a diameter of 60mm and is made of BLG725 steel. The steel tie rod 2 provides tension to the spiral truss, further improving the span that the large-span steel truss spiral staircase structure can handle.

[0024] The step structure 3 is fixed on the upper chord 6 of the spiral truss 1. It includes a step steel plate 9 and a step surface layer 10. The step steel plate 9 is fixed on the upper chord 6 of the spiral truss 1, and the step surface layer 10 is fixed on the step steel plate 9.

[0025] The embodiments described above are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the scope of the implementation of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the described embodiments. These technical solutions should also be within the protection scope of this utility model.

Claims

1. A steel-rod-suspended, large-span steel truss spiral staircase structure, including a step structure, characterized in that: It also includes a helical truss and steel tie rods; the helical truss is a spatial tubular truss in the shape of a helix, and the helical truss includes a truss top chord, a truss bottom chord and truss web members, with the truss web members fixed between the truss top chord and the truss bottom chord; the upper end of the steel tie rod is connected to the main building structure, and the lower end of the steel tie rod is connected to the truss top chord of the helical truss, with the steel tie rod suspending the helical truss diagonally downward; the step structure is fixed to the truss top chord of the helical truss.

2. The steel tie rod suspended large-span steel truss spiral staircase structure according to claim 1, characterized in that: The spiral truss is in the form of a triangular, rectangular or trapezoidal cross section.

3. The steel tie rod suspended large-span steel truss spiral staircase structure according to claim 1, characterized in that: The steel tie rod is a solid finished steel tie rod, or a round steel pipe, rectangular steel pipe, steel bar, or steel cable.

4. The steel tie rod suspended large-span steel truss spiral staircase structure according to claim 1, characterized in that: The step structure includes a step steel plate and a step surface layer. The step steel plate is fixed to the upper chord of the spiral truss, and the step surface layer is fixed to the step steel plate.

5. The steel tie rod suspended large-span steel truss spiral staircase structure according to claim 1, characterized in that: The upper end of the steel tie rod is connected to the structural beams and columns of the main building.

6. The steel tie rod suspended large-span steel truss spiral staircase structure according to claim 5, characterized in that: The structural beams, structural columns, and truss upper chords are all fixed with connectors, and the ends of the steel tie rods are hinged to the connectors.

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