L-Shaped Profiles for External Wall Seismic Reinforcement
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Solution Overview
Problem
Existing building techniques fail to ensure the solidity and stability of external walls against seismic shocks from earthquakes, particularly during the construction phase when 'L'-shaped profiles are not inserted during the concrete casting process.
Innovation Solution
A method involving the use of 'L'-shaped profiles welded with rods and reinforced with iron bars, which can be retrofitted into the concrete columns and walls after construction, ensuring stability by providing additional reinforcement through concrete reinforcement bands and steel strips with nuts and bolts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If 'L'-shaped profiles are not inserted during concrete casting process, then construction flexibility and ease of operation are improved, but structural strength and reliability against seismic shocks deteriorate
Solution Approach 1:
The 'L'-shaped profiles are pre-installed into the concrete columns during the concrete casting process before the wall construction begins. This preliminary action ensures that the reinforcement framework is already in place to receive and securely integrate the subsequent wall bricks, providing structural strength from the outset while maintaining construction flexibility.
Solution Approach 2:
The 'L'-shaped profiles act as intermediary elements that connect the concrete columns to the wall bricks. These profiles provide a standardized interface that facilitates the integration of masonry walls with the reinforced concrete structure, ensuring both structural integrity and construction ease.
2Reliability
If additional reinforcement frameworks are added to ensure earthquake resistance, then structural reliability is improved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The reinforcement system is segmented into distinct modular components: 'L'-shaped profiles for column reinforcement, concrete reinforcement bands at regular intervals, and standardized wall brick units. This segmentation allows each component to be independently manufactured, installed, and optimized, reducing overall system complexity while maintaining high reliability.
Solution Approach 2:
The reinforcement framework utilizes standardized parameters and dimensions (e.g., specific profile thicknesses, regular spacing intervals for concrete bands) that simplify manufacturing and installation processes. By establishing consistent parameter values throughout the structure, the system achieves earthquake resistance without excessive complexity.
3Stability of the object's composition
If concrete reinforcement bands are installed at regular intervals, then wall stability is improved, but construction time and productivity are reduced
Solution Approach 1:
The concrete reinforcement bands are pre-planned and positioned at predetermined intervals (e.g., every 1.5 to 2 meters) during the wall construction process. This preliminary positioning ensures that the reinforcement framework is ready to receive wall bricks, maintaining wall stability while enabling continuous construction flow without frequent interruptions.
Solution Approach 2:
Concrete reinforcement bands are installed at periodic intervals along the wall height, creating a regular pattern of horizontal reinforcement. This periodic reinforcement provides sufficient structural stability and earthquake resistance while minimizing the total number of reinforcement installations, thereby maintaining construction productivity.
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
This method enhances the solidity and stability of external walls, providing 100% solidity and stability against seismic impacts by integrating additional reinforcement, ensuring the structural integrity of the building during earthquakes.
Implementation Method 1
two long 'L'-shaped profiles with a height of 2.8 m-3.6 m, width 5 cm (depth) and thickness of 3 mm, are applied. To each 'L' -shaped profile, on one side, three Φ16 rods of 20 cm are welded
Implementation Method 2
steel strips can be ordered, according to the project design and thickness of the concrete columns, and which can be equipped with nuts and bolts to enable fixing and fastening of the 'L'-shaped profiles to the bottom and top of concrete columns
Implementation Method 3
At every 1-meter height of the wall, a concrete reinforcement band is established with inserting 3 or 4 iron bars of Φ 10
Data Source
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AI summary
The title of the invention is "Protection of surrounding external walls from earthquakes", that argues for the purpose of this invention, consisting of a construction method that enables the resistance and solidity of surrounding external walls from shocks during earthquakes