1.How do I make the cantilevered stone stairs step?

By observing the case pictures, stone stairs can be inferred that the finished surface thickness of the stone step is about 70~80 mm, and the bottom of the step is similar to the material of aluminum plate or stainless steel plate. So, how should this stone step be made? We can analyze it from the following two aspects:

1.1 How is the standard atlas of stone steps made?

3 cantilevered steps on stone stairs for The most easily overlooked problem
                                                                      Nature stone stairs step

3 cantilevered steps on stone stairs for The most easily overlooked problem
                                             Schematic diagram of marble stone step nodes

 

  • This method is to first plant reinforcement on the steel structure to increase the reliability of the base layer for easy bonding, then level it with cement mortar, and finally stick the stone with glue to achieve a stable effect.
  • Under normal circumstances, the stone is 2 cm, the glue bonding layer is at least 0.8 cm, and the mortar layer is at least 1.5 cm; the minimum finished surface thickness can be about 5 cm.
  • Although it is possible to follow the standard atlas in principle, we do not recommend this method.

Only the two connection points connecting the steel structure of the stone stairs and the wall are stressed, which is easy to shake. As long as the steel plate shakes, the cement mortar layer will inevitably crack.

1.2 What is the correct way to do the stone step in this case?

3 cantilevered steps on stone stairs for The most easily overlooked problem
                                            Stone cantilever step node diagram
  • Through the standard drawing, we can see that the stone and the base are directly bonded together by adhesive, and its base only needs to be flat and strong.
  • According to the spatial scale, it can be inferred that the thickness of the step is ≤80 mm. Because the cantilevered step skeleton is made of steel,it is recommended to use flame-retardant boards and steel plates as the base and bond the stone with stone glue to achieve the effect of reducing the thickness of the finished surface.
  •  Use plywood or wood board instead of a cement mortar leveling layer. The plywood can be directly fixed to the steel plate with nails without grouting, and the construction cycle is fast, so there is no fear of bumps during the process.

2.What should be paid attention to in the design of steps?

After we understand the craftsmanship of cantilever steps, there is still a part of the staircase specifications that we need to focus on. These are mainly divided into the following three aspects:

2.1 Pay attention to the aspect ratio of steps.

The aspect ratio of stone stair steps will have different requirements in different functional spaces, such as: kindergartens require stone stair step width ≥ 260 mm, height ≤ 150 mm; office buildings require step width ≥ 260 mm, height ≤ 170 mm.

Therefore, the aspect ratio of steps should be reasonably arranged during design.

3 cantilevered steps on stone stairs for The most easily overlooked problem
                                                                                 Step section diagram

3 cantilevered steps on stone stairs for The most easily overlooked problem
                                 Step width design requirements table

 

2.2 The step surface should be non-slip.

In spaces with large traffic, it is important to pay attention to non-slip treatment. Steps made of materials such as stone, wooden floors, or ceramics can be made in the form of surface grooves or inlays, while glass step styles cannot be cantilevered in this way.

2.3 Stone stairs form selection .

There are strong regulations in the specifications. In public places where young children and the elderly often move around, the stone stair-step style cannot be cantilevered in this way.

3. Are there any specific specifications for the stairwell’s groove handrail?

We can see from the case photographs that the stone stair railing is a concave groove handrail. What details about the handrail’s dimensions and specs should we be aware of?

3 cantilevered steps on stone stairs for The most easily overlooked problem
              Design of grooved handrails in the case
  • The groove serves as a kid-friendly low-pull railing. According to the specification, the stone stairs handrail’s height cannot be lower than 900 mm. However,to make it easier for certain groups, such as the elderly and small children, to grab, the low-pull handrail should be between 600 and 650 mm.
  • The stone stairs handrail’s diameter, which is best suited for domestic gripping, is between 50 and 80 mm, according to ergonomics. Consequently, when creating, user comfort should be a priority.

HRST STONE(CENTURY STAR)Marble stair show

3 cantilevered steps on stone stairs for The most easily overlooked problem
Aquarella Quartzite stone stairs

3 cantilevered steps on stone stairs for The most easily overlooked problem
layout grey marble stair

3 cantilevered steps on stone stairs for The most easily overlooked problem
panda white marble

よくある質問

1. カンチレバー式の石造り階段の主な設計上の利点は何ですか？

カンチレバー式の石造り階段、いわゆる「浮遊型」階段は、ミニマルで軽やかな美学を提供し、現代建築に開放感を生み出します。各段を目に見える支えなしに補強された壁に直接固定することで、機能的な階段が劇的な構造美術へと変貌し、空間に光が自由に流れ込むようになります。.

2. どの種類の天然石がカンチレバー階段に最も適していますか？

浮遊型階段にとって耐久性と構造的整合性は極めて重要です。高密度の石材である 御影石 そして クォーツァイト カッラーラ カラカッタ または が頻繁に使用されます。当社では、大理石の階段をさらに安全かつ高い耐荷重能力を確保するため、内部に鋼鉄製の補強材や炭素繊維を組み込むことが多くあります。 カンチレバー式階段の安全性は専門的な設計技術に依存しています。各石段は壁の中に隠れた頑丈な鋼製ストリンガーに固定されています。私たちは石の重量と想定される動荷重を緻密に計算し、完全なたわみのない状態を保証します。また、視覚的なバランスと物理的な強度を両立させるため、最低でも段厚は60mmから80mmを推奨しています。 センチュリー・スター, はい、LEDストリップを組み込むことは高級感あふれるカンチレバー設計の特徴です。照明は各段の「鼻先」の下にあるくぼみや壁側に設置できます。これにより、柔らかな影をつくることで「浮遊」効果が一層際立ち、さらに暗い環境下でも段の縁を明確に示すことで安全性も向上します。.

3. 浮かぶ石の階段の安全性と安定性はどのように確保されていますか？

石造り階段をいつまでも美しく保つには、毎日柔らかいマイクロファイバークロスとpH中性の石材クリーナーを使って清掃してください。安全性を考慮し、自然な滑り止め効果を備えるために、研磨仕上げまたはレザーエッジ仕上げをおすすめします。.

4. レディアンス照明を片持ち式の石段に組み込むことは可能ですか？

は、特に階段の先端部分において、湿気や摩耗から石材を保護するために、12か月ごとに専門家によるシーリング処理をすることを推奨します。.

5. 人通りの多いエリアの石造り階段にはどのようなメンテナンスが必要ですか？

To keep stone stairs looking pristine, clean daily with a soft micro-fiber cloth and a pH-neutral stone cleaner. For safety, we recommend a honed or leathered finish to provide natural slip resistance. センチュリー・スター suggests professional sealing every 12 months to protect the stone from moisture and wear, especially on the leading edges of the steps.