Textile Reinforced Masonry Seismic Ductility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Masonry structures face limitations in absorbing horizontal loads, particularly during earthquakes, due to their low resistance and ductility, necessitating improved reinforcement methods that enhance both bearing capacity and deformation capability without compromising structural integrity.
Innovation Solution
A method involving the adhesively bonding of textiles with high ductility to building surfaces using a ductile adhesive, ensuring the textile and adhesive combination achieves a ductility of ≥2 in the cured state, allowing for effective distribution of tensile forces and bridging of cracks, thereby increasing the overall ductility of the masonry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional masonry structures are used, then construction simplicity and cost-effectiveness are maintained, but resistance to horizontal loads and ductility are insufficient
Solution Approach 1:
The patent applies composite materials by bonding textile reinforcement layers to the masonry surface using adhesive. The textile layer ( comprising fibres such as glass, carbon, or organic fibres) combined with the adhesive forms a composite system that significantly enhances the masonry's resistance to horizontal loads and seismic forces while maintaining the original masonry structure's simplicity
Solution Approach 2:
The patent changes the mechanical parameters of the masonry structure by introducing a textile layer with specific fibre orientations (e.g., 0°, 90°, ±45°) and adhesive properties. This modifies the overall strength, ductility, and energy dissipation characteristics of the masonry without fundamentally altering its construction method
2Strength
If rigid reinforcement materials are used, then bearing capacity is improved, but ductility and deformation capability deteriorate
Solution Approach 1:
The patent selects textile fibres with appropriate mechanical properties (tensile strength, modulus of elasticity) and adhesive characteristics to achieve a balance between bearing capacity and ductility. The fibre orientation angles and layer configurations are optimized to provide both strength and deformation capability
Solution Approach 2:
The composite system of textile and adhesive bonded to masonry creates a reinforcement layer that can undergo significant deformation. The textile fibres provide tensile strength while the adhesive allows for stress distribution and energy dissipation, maintaining ductility even as bearing capacity increases
3Strength
If epoxy resin is used as reinforcement matrix, then strength is improved, but permeability to water vapour is lost and smoke is generated under heat
Solution Approach 1:
The patent replaces epoxy resin with alternative adhesive materials that, while potentially having shorter service life or different performance characteristics, eliminate harmful effects such as smoke generation under fire conditions and improve water vapour permeability. The adhesive serves its primary function of bonding the textile to the masonry without introducing toxic byproducts
Solution Approach 2:
The patent changes the chemical composition and physical properties of the reinforcement matrix by selecting adhesives with different thermal and permeability characteristics compared to epoxy resin, thereby reducing harmful effects while maintaining structural reinforcement functionality
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 method significantly enhances the masonry's ability to withstand seismic forces by distributing loads and allowing for plastic deformation, thereby improving the structure's resistance and energy dissipation capabilities, making it more resilient to earthquakes.
Implementation Method 1
adhesively bonding a textile to the surface of the part of a building by means of an adhesive
Implementation Method 2
the textile before the adhesive bonding has a ductility in each fibre direction of ≥1.0... the adhesive in the cured state has a ductility of ≥1.5... the part of a building after the adhesive bonding has a ductility measured out-of-plane of ≥2
Data Source
AI summary
A method for reinforcing a part of a building comprises the step of adhesively bonding a textile to the surface of the part of a building by means of an adhesive. The invention relates further to such a reinforced part of a building and to the use of a textile in combination with an adhesive for reinforcing a part of a building, wherein the textile is adhesively bonded to the surface of the part of a building by means of an adhesive.