Cantilever Plate Connecting Element With Inclined Insulated Rods
Solution Overview
Problem
Existing cantilever slab connection elements face challenges in balancing static load-bearing capacity with thermal insulation while minimizing material usage, particularly when dealing with height offsets between slabs, which can lead to incomplete force transfer and thermal bridging.
Innovation Solution
The cantilever slab connection element features an insulating body with rods for tensile, compressive, and transverse force absorption guided at angles deviating from horizontal through the insulating body, along with traction means welded to these rods, ensuring complete force transfer and thermal insulation. This design allows for a more compact and corrosion-protected structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If horizontal tension rods are used to connect slabs at different heights, then force transfer is achieved, but thermal insulation is compromised and concrete breakout risk increases
Solution Approach 1:
The tension rod is redirected from a horizontal path to an inclined path through the insulating body, changing the spatial dimension of force transmission. This inclined configuration allows the rod to pass through the insulating body at an angle, maintaining force transfer capacity while minimizing thermal bridge exposure to external environment
Solution Approach 2:
The insulating body provides localized thermal insulation around the inclined tension rod, creating a thermal barrier specifically at the critical connection zone where the rod penetrates through the insulating material, thus preventing thermal bridging at the most vulnerable location
2Object-affected harmful factors
If inclined rods are used to connect slabs at different heights, then thermal insulation is improved, but force transfer capacity may be reduced
Solution Approach 1:
The connection system combines the inclined tension rod (structural element) with the insulating body (thermal insulation material) into a composite structure. The insulating body is designed to accommodate the inclined rod while providing thermal insulation, creating a unified system that delivers both mechanical strength and thermal protection simultaneously
3Strength
If multiple rods and traction means are added to increase load capacity, then strength is improved, but material usage and device complexity increase
Solution Approach 1:
The tension rod and compression rod are merged into a single integrated inclined rod structure that simultaneously handles both tensile and compressive forces. The traction means are combined with the rod ends, eliminating the need for separate connection components and reducing overall device complexity while maintaining full load-bearing capacity
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 solution achieves high static load capacity with good thermal insulation, reduces material usage, and provides a smooth, level transition between slabs, enhancing accessibility for users like wheelchair users by eliminating edges and steps.
Implementation Method 1
good thermal insulation must be ensured, since the cantilevered panels are subject to high thermal stress in practice. The cantilevered parts can act as thermal bridges and thereby cause structural damage
Implementation Method 2
at least one tension rod... pass through the insulating body... firmly connected to the tension rod and the compression rod
Implementation Method 3
at least one push rod... pass through the insulating body... firmly connected to the tension rod and to the push rod
Implementation Method 4
at least one rod for absorbing compressive and transverse forces pass through the insulating body
Data Source
Figure 1
Figure 2
AI summary
The cantilever plate connection element (1) has an insulating body (4) arranged in built-in condition between a cover- or base plate (2) and the cantilevered plate, a tension rod (5) penetrating the insulating body and a rod (6) for receiving of pressure- and shear forces. The tension rod runs in its section in the area of the insulating body and the rod for receiving of pressure- and shear forces runs in its section in the area of the insulating body in a direction different from the horizontal in a built-in condition.