Fabricated section steel combined step structure in narrow space

Abstract

The utility model discloses a narrow space assembly type section steel combined step structure, which belongs to the technical field of building construction and comprises a plurality of sections of steel columns which are sequentially connected from bottom to top, ladder sections are fixedly connected onto the steel columns, and the ladder sections are made of riffled plates. A short rib cushion block, a reinforcing mesh, a concrete cushion layer and a step decorative stone plate are fixed in the step area of the stair flight, and a step kicking decorative stone plate is fixed in the step kicking area of the stair flight. The utility model solves the problem that materials (concrete, reinforcing steel bars and the like) cannot be massively stacked to the site due to a narrow site, and also solves the safety problems of construction period occupation of turnover measures and tools and on-site mounting and dismounting. Due to the adoption of the structure of the steel structure foundation and the stair flights, the stair has the advantages of good bearing capacity, good durability, good plasticity, good shock resistance and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction technology, especially relate to the construction of stair, specifically a narrow space assembly type steel combined step structure. BACKGROUND

[0002] Today, reinforced concrete structure is widely used, and the stair is usually a part of the building, so reinforced concrete structure is also used, which has low cost and good durability.

[0003] However, the traditional reinforced concrete stair has some drawbacks, mainly including:

[0004] 1) When the traditional reinforced concrete stair is constructed, a support system needs to be set up at the lower part of the structure, and the frame and the formwork need to be transported to the site, which takes a long time to set up, and after the concrete pouring is completed, the support system needs to be removed and all materials need to be cleaned and transported to the site, which not only takes a long time, but also requires more operation work and has great difficulty in safety management.

[0005] 2) If the reinforced concrete stair is constructed in a narrow area, the ready-mixed concrete cannot be loaded by a concrete pump truck, and there is no space on site for steel bar production, which brings many difficulties to the construction of the stair. SUMMARY

[0006] The utility model aims at solving the problems in the prior art and provides a narrow space assembly type steel combined step structure.

[0007] The utility model is implemented by the following technical solutions:

[0008] A narrow space assembly type steel combined step structure, comprising a steel column, a ladder section and a dry-hanging decorative panel.

[0009] The steel column is provided with multiple sections, and the multiple sections are arranged in sequence from bottom to top, and the adjacent steel columns are fixedly connected through a steel beam.

[0010] The ladder section is provided with multiple sections, and the multiple sections are arranged in sequence from bottom to top, and each section is fixedly connected with a corresponding steel column; the ladder section is made of a patterned steel plate, each step of the ladder section is fixedly connected with a short reinforcement pad, the short reinforcement pad is fixedly connected with a steel mesh, and the steel mesh is formed with a concrete pad, and the concrete pad is fixedly connected with a step decorative stone plate; each step of the ladder section is fixedly connected with a step decorative stone plate; the step decorative stone plate and the step decorative stone plate on the ladder section are fixedly connected to form an integral decorative surface layer.

[0011] The dry-hanging decorative panel is provided with multiple blocks, and the multiple blocks are movably installed on the side surface of each step of the ladder section.

[0012] Further, the side surface of each step of the ladder section is fixedly connected with a C-shaped slot, the inner plate surface of the dry hanging decorative panel is fixedly connected with an I-shaped insertion rail, and the I-shaped insertion rail on the dry hanging decorative panel is movably inserted into the C-shaped slot of the ladder section.

[0013] Further, the bottommost steel column is a foundation steel column, and the bottom of the foundation steel column is fixedly connected to the concrete foundation.

[0014] Further, the bottom of the foundation steel column is fixedly connected with a pre-buried steel plate, the bottom of the pre-buried steel plate is fixedly connected with a connecting bolt, and the pre-buried steel plate and the connecting bolt thereon are fixedly arranged in the concrete foundation.

[0015] Further, the steel column and the steel beam are fixedly connected through high-strength bolts.

[0016] Further, the concrete cushion layer is made of 50mm-thick C25 concrete cushion layer.

[0017] Further, the ladder section is made of 3mm-thick patterned steel plate.

[0018] Compared with the traditional reinforced concrete stair construction, the problem that materials (concrete, steel bars, etc.) cannot be stacked on site in large quantities due to a small site is solved, and the problems of the occupation of the construction period of turnover measures tools and the safety of on-site installation and removal are also solved. The steel structure foundation and the structure of the ladder section adopted by the utility model have many advantages such as good bearing capacity, good durability, good plasticity, good seismic resistance and the like. The push-pull slot (C-shaped slot) and the I-shaped insertion rail are matched to form a push-pull assembly structure on the side surface of the ladder section, which is simple and convenient, simplifies the construction steps, saves the construction period, greatly reduces the influence of low temperature and other factors caused by wet work, and has remarkable economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model.

[0020] Figure 2 It is a structural schematic view of the ladder section in the utility model.

[0021] Figure 3 It is a connection schematic view of the foundation steel column in the utility model.

[0022] Figure 4 It is a structural schematic view of the dry hanging decorative panel in the utility model.

[0023] Figure 5 It is a connection schematic view of the dry hanging decorative panel in the utility model.

[0024] In the figure: 1-steel column, 2-ladder section, 3-dry hanging decorative panel, 4-base steel column, 5-concrete base, 6-embedded steel plate, 7-connecting bolt, 8-steel beam, 9-high-strength bolt, 10-short reinforcement pad, 11-steel mesh, 12-concrete cushion layer, 13-step decorative stone plate, 14-kick step decorative stone plate, 15-C-shaped slot, 16-I-shaped rail. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently 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 the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] In the description of the utility model, it should be explained that the terms "upper", "lower", "bottom" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0027] As shown in Figures 1 to 5 The embodiment provides a narrow space fabricated sectional steel combined step structure, which comprises a steel column 1, a ladder section 2 and a dry hanging decorative panel 3.

[0028] The steel column 1 is provided with multiple sections, and the multiple sections of the steel column 1 are sequentially arranged from bottom to top; the steel column 1 located at the bottom is a base steel column 4, and the bottom of the base steel column 4 is fixedly connected to a concrete base 5, specifically: the bottom of the base steel column 4 is fixedly connected with an embedded steel plate 6, the bottom of the embedded steel plate 6 is fixedly connected with a connecting bolt 7, and the embedded steel plate 6 and the connecting bolt 7 thereon are fixedly arranged in the concrete base 5 as a whole; the adjacent steel columns 1 are fixedly connected through a steel beam 8, and the steel column 1 and the steel beam 8 are fixedly connected through a high-strength bolt 9.

[0029] The ladder section 2 is provided with multiple sections, and the multiple sections of the ladder section 2 are sequentially arranged from bottom to top, and each section of the ladder section 2 is fixedly connected with a corresponding steel column 1; the ladder section 2 is made of 3mm-thick patterned steel plates, each step of the ladder section 2 is fixedly connected with a short reinforcement pad 10, the short reinforcement pad 10 is fixedly connected with a steel mesh 11, the steel mesh 11 is formed with a 50mm-thick C25 concrete cushion layer 12 by pouring, and the concrete cushion layer 12 is fixedly connected with a step decorative stone plate 13; each step of the ladder section 2 is fixedly connected with a kick step decorative stone plate 14; the kick step decorative stone plate 14 on the ladder section 2 is fixedly connected with the step decorative stone plate 13 to form an integral decorative surface layer.

[0030] The dry-hanging decorative panels 3 are provided in multiple pieces, each of which is movably installed on the side of each step of the ladder section 2. Specifically, each side of each step of the ladder section 2 is fixedly connected with a C-shaped slot 15, and the inner plate surface of each dry-hanging decorative panel 3 is fixedly connected with an I-shaped rail 16, and the I-shaped rail 16 on the dry-hanging decorative panel 3 is movably inserted into the C-shaped slot 15 of the ladder section 2.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A prefabricated steel composite step structure for narrow spaces, characterized in that: This includes steel columns, stair tiers, and dry-hanging decorative panels; The steel column is made of multiple sections, which are installed sequentially from bottom to top, and adjacent steel columns are fixedly connected by steel beams. The staircase consists of multiple segments arranged sequentially from bottom to top, each segment being fixedly connected to a corresponding steel column. The staircases are constructed of patterned steel plates. Each step of a staircase has a short reinforcing block fixedly connected to its tread area, and a steel mesh is fixedly connected to these blocks. A concrete base layer is poured on top of the steel mesh, and decorative stone slabs are fixedly connected to the concrete base layer. Similarly, each step of a staircase has a decorative stone slab fixedly connected to its riser area. The decorative stone slabs on the riser and treads are fixedly connected to form a unified decorative surface layer. There are multiple dry-hanging decorative panels, which are movably installed on the side of each step of the staircase.

2. The narrow space fabricated sectional steel composite stepped structure according to claim 1, characterized in that: Each step of the staircase is fixedly connected to a C-shaped slot on its side, and an I-shaped rail is fixedly connected to the inner surface of the dry-hanging decorative panel. The I-shaped rail on the dry-hanging decorative panel is movably inserted into the C-shaped slot of the staircase.

3. The narrow space assembly type section steel combined step structure according to claim 1, characterized in that: The bottom steel column is the foundation steel column, which is fixedly connected to the concrete foundation at its bottom.

4. The narrow space fabricated sectional steel composite step structure according to claim 3, characterized in that: The bottom of the foundation steel column is fixedly connected to a pre-embedded steel plate, and the bottom of the pre-embedded steel plate is fixedly connected to a connecting bolt. The pre-embedded steel plate and the connecting bolts thereon are fixed together in the concrete foundation.

5. The narrow space assembly type section steel step structure according to claim 1, characterized in that: The steel columns and steel beams are connected and fixed with high-strength bolts.

6. The narrow space assembly type section steel step structure according to claim 1, characterized in that: The concrete subbase is made of 50mm thick C25 concrete.

7. The narrow space assembly type section steel step structure according to claim 1, characterized in that: The staircase is made of 3mm thick patterned steel plate.

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