L-Profile Force Transmission Element for Stair Joint Sound Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions for connecting stair landings and staircases separated by a joint lack effective force transmission and sound insulation, particularly in absorbing impact sound and ensuring structural resistance.
Innovation Solution
A component featuring a separating plate with an L-profile force transmission element, comprising a flat flange and web that transmits forces while providing soundproofing, where the flange rests on the stair landing and the web penetrates into the staircase, with an elastomer layer and insulating material for enhanced sound decoupling and reinforcement elements for stable anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a traditional shear force mandrel and receptacle connection is used, then force transmission is achieved, but sound insulation is insufficient
Solution Approach 1:
The patent introduces an L-profile force transmission element as an intermediary component between the shear force mandrel and the building parts. This L-profile element with flange and web acts as a mediator that simultaneously provides mechanical force transmission while creating acoustic separation through its geometric configuration and interaction with the separating plate and insulating materials.
Solution Approach 2:
The patent employs composite construction by combining the metal L-profile force transmission element with acoustic insulating materials (mineral wool, foam plastic) and elastomer layers. This composite approach allows the connection component to fulfill both structural (force transmission) and acoustic (sound insulation) functions simultaneously.
2Strength
If solid head plates are used for direct concrete support, then structural strength is improved, but soundproofing capability deteriorates
Solution Approach 1:
The L-profile force transmission element serves as an intermediary between the concrete structure and the connection system, replacing direct contact between solid head plates and concrete. The L-profile's geometry with flange and web creates acoustic separation while maintaining structural load-bearing capacity.
Solution Approach 2:
The patent incorporates elastomer layers as flexible damping elements that cover the force-transmitting surfaces of the L-profile element. These elastomer films provide both structural support and acoustic damping, reducing sound transmission while maintaining the necessary structural strength.
3Force
If the flange rests flat against the separating plate, then optimal support and force transmission are achieved, but gap closing requires precise positioning
Solution Approach 1:
The L-profile force transmission element is designed to self-align and self-position during installation. The flange's flat surface naturally settles against the separating plate, and the web's insertion into the stair body creates automatic positioning, reducing the need for precise manual alignment while ensuring optimal force transmission contact.
Solution Approach 2:
The patent specifies that the web encloses an angle of between 45° and 135° with the flange, with optimal performance at around 90°. This angular parameter optimization ensures that the L-profile element achieves both flat bearing contact for force transmission and effective penetration into the stair body for anchoring, balancing manufacturing tolerance with functional performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The component effectively transmits forces and achieves superior sound insulation by closing the gap between the stair landing and staircase, ensuring structural integrity and optimal soundproofing through the use of insulating and elastomer materials.
Implementation Method 1
an elastomer layer and insulating material for enhanced sound decoupling
Implementation Method 2
Impact sound insulation plays a special role here
Implementation Method 3
insulating material for enhanced sound decoupling
Implementation Method 4
ensures insulation, in particular soundproofing, of the parts of the building from one another
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The invention relates to a structural element 1 for a sound-insulating, force-transmitting connection between a first building section A and a second building section B separated from the first building section A by a joint, in particular for a sound-insulating, force-transmitting connection between a staircase and a stair landing. The structural element has a separating plate 2 arranged in the joint when installed, at least one reinforcing element 3 extending into the first building section A when the structural element is installed, and at least one force transmission element 4 rigidly connected to the reinforcing element 3. The force transmission element 4 is L-shaped, with the L-profile having a flat flange 5 and a flat web 6. When installed, the flange 5 is arranged on the side of the separating plate 2 facing the first building section A, extends substantially parallel to the separating plate 2, and rests flat against the separating plate 2.The bridge 6 forms an angle between 45° and 135° with the flange 5, penetrates the partition plate 2 and extends into the second building part B when installed.