Manufacturer of sliding support plastic sheets for stairs

NegotiableUpdate on 01/22

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Nature of the Manufacturer: Producers

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Overview

The principle of the seismic resistant structure staircase made of polytetrafluoroethylene board is the node active connection. When seismic waves come, the staircase and floor slab can move, thus avoiding the impact of building swing force on the staircase causing it to break and affecting personnel evacuation. Polytetrafluoroethylene is a solid material with a known low friction coefficient. Manufacturer of sliding support plastic sheets for stairs

Product Details

Manufacturer of sliding support plastic sheets for stairs

The principle of the seismic resistant structure staircase made of polytetrafluoroethylene board is the active connection of nodes. When seismic waves come, the staircase and floor can move, thus avoiding the impact of building swing force on the staircase, which may cause the staircase to break and affect personnel evacuation. Polytetrafluoroethylene is a known solid material with low friction coefficient. Using its low friction resistance to make bridge sliders and seismic staircase node pads is beneficial for their movement, avoiding thermal expansion and contraction and seismic wave impact damage to the structure.

In densely populated large buildings such as shopping malls, schools, nursing homes, etc., it is recommended to use 5mm PTFE sliding supports for installing stairs produced by Duoyao Company, which is beneficial for ensuring that escape routes are not first damaged during earthquakes and for personnel evacuation.

Why is it necessary to use 5mm thick PTFE board for the sliding support of stairs

The answer is affirmative! Be sure to use 5mm polytetrafluoroethylene board

1. We attach great importance to the safety of residents' homes

2. The frequent occurrence of natural disasters leads to the damage of stairs, making it impossible to escape and rescue

3. Polyethylene tetrafluoroethylene board has low lubricity and plays a buffering role in earthquake resistance.

The seismic measures for stair sliding supports can be classified based on materials, and stair slabs can be divided into steel grating stair slabs, concrete stair slabs, and wooden stair slabs. Except for concrete stair treads, which can be prefabricated in factories or made on site, both metal and wooden stair treads are made in factories. Metal stair treads are generally used in industrial buildings, while concrete stair treads are generally used in office, commercial, public buildings, high-rise buildings, etc. Wooden stairs are generally used for small low rise buildings.

In traditional frame structure staircase design, PTFE board staircase sliding support is used, and the stair board of slab staircase is generally designed as a unidirectional bending member. However, in earthquake action, the board acts as a diagonal support member to bear axial and shear forces, so the stress at the connection between the stair board and the stair beam is relatively high. The stairs with sliding supports release shear and bending moments, greatly reducing the stress on the stair treads.

Under earthquake action, stairs with sliding supports may have the possibility of instantaneous detachment of the stair slab from the sliding support. Therefore, quantitative analysis of the displacement of the support end of the sliding support stair slab under earthquake action should be considered in the design.

Product details: PTFE stair board is mainly used in engineering stairs as a hard PTFE stair support, which is widely used in current stair applications. Because the stairwell does not participate in the overall seismic calculation of the structure, sliding supports need to be designed according to traffic restrictions. Polytetrafluoroethylene (PTFE) board is currently known to have a low coefficient of friction in solids (even smaller than ice). At the same time, the pressure required for the production of PTFE board should be greater than 30MPa, and the tensile strength of the product itself should be greater than 15MPa (equivalent to the strength of C15 concrete in construction). The tensile rate should be greater than 150%. The selection of PTFE board in this area is based on two factors: excellent sliding performance and reliable strength and tensile rate.

Design Basis

In the new design specifications and drawings, the role of staircase design in the overall seismic design of the structure has been gradually enhanced. In Article 6.1.15 of the "Code for Seismic Design of Buildings", it is explicitly required that "for frame structures, the setting of staircases should not cause particularly irregular structural planes; when pouring the staircase components and the main structure as a whole, the PTFE plate staircase pad should be included in the influence of the staircase components on seismic effects and their effects, and the seismic bearing capacity of the staircase components should be verified; structural measures should be taken to reduce the influence of staircase components on the stiffness of the main structure". In the atlas 11g101-2 "Drawing Rules and Construction Details of Concrete Structure Construction Drawing Plane Integral Representation Method (Cast in place Concrete Plate Stairs)", Hebei PTFE board is introduced for the first time as a new form of ATA and ATB type sliding support plate stairs.

The principle of PTFE stair board seismic structure stairs is node active connection. When seismic waves come, the stairs and floor slabs can move, thus avoiding the impact of building swing force on the stairs causing them to break and affect personnel evacuation. PTFE is a known solid material with a low friction coefficient, which is used to make bridge sliding blocks and seismic stair node pads to facilitate their movement and avoid damage to the structure caused by thermal expansion, contraction, and seismic wave impact.

Construction precautions for 5mm PTFE stair board?

1、 Preparation work before construction: 1. Clean the surface of the stairs and do not allow sharp particles. Lay plastic wrap.

2、 Laying 5mm PTFE staircase board: 1. Prepare drilling tools (according to the atlas or company installation instructions), pay attention to the spacing and edge distance according to the atlas for drilling treatment. (Attention: Attention! It is strictly required that the PTFE board should undergo sleeve processing. For details, please call our company.).

3、 Manufacturer of PTFE stair board, fixing 5mm PTFE stair board: 1. Prepare tools such as electric drill and bolts. 2. Fix with bolts (note: according to the drawing or our company's installation instructions).

4、 Pouring: Attention: Construction joint filling board!!

The thickness of the PTFE board for stairs is generally 5mm, and its length is the length of the stair board; The width is the step width. Cutting the PTFE board on the stairs requires the use of a profile cutting machine for cutting. After the installation of the staircase PTFE board is completed, cover the easily contaminated areas with adhesive paper iron covers or plastic film for protection. Safety guardrails should be installed to protect the easily scratched areas. PTFE ladder board is mainly used in engineering stairs as a hard PTFE stair support, which is widely used in current staircase applications. Because the stairwell does not participate in the overall seismic calculation of the structure, sliding supports need to be designed according to traffic restrictions. The variety and specifications of PTFE boards used for stairs must comply with the design requirements and construction specifications. Require the surface of polytetrafluoroethylene board to be flat, clean, and free from any damage.

During the construction process of PTFE panels, in order to prevent the surface layer of the staircase PTFE panels from falling off, it is necessary to promptly fix them by pasting or using cat fasteners for anchoring. Only in this way can the decorative surface be better constructed. At the same time, throughout the entire construction process, all instructions should be prepared according to the product design specifications to avoid direct sunlight exposure, and all fixing work should be completed within two hours. Reasonable planning should be made during the construction of the PTFE board on the stairs.

In recent years, with the continuous increase of industrial materials in China, it has gradually become known that this PTFE board material still has good performance. So, when entering the 21st century industrial materials market for promotion and sales, one will still understand its advantages and characteristics, especially in the promotion process, which will greatly upgrade most industries. Firstly, this material has outstanding qualities in both quality and craftsmanship, especially in the design process with characteristics such as corrosion resistance, high temperature resistance, high and low temperature resistance, insulation, and non adhesiveness. Therefore, its application will become increasingly widespread in the process of artificial synthesis.