External Anti-Seismic Device for Aged Building Reinforcement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing earthquake-resistant reinforcement methods for buildings, particularly those with wooden frameworks, are inadequate and burdensome, requiring significant construction work and failing to ensure sufficient seismic strength, especially for aged structures.
Innovation Solution
An earthquake-resistant reinforcement apparatus comprising an anti-seismic device, an attaching member, and a horizontal supporting member that can be externally attached to buildings without invasive renovation, using a horizontal connection beam and bearing bracket to absorb seismic energy and provide reinforcement without disrupting the existing structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional anti-seismic devices are installed to existing buildings, then earthquake resistant strength is improved, but construction work becomes large-scaled and burdensome on inhabitants
Solution Approach 1:
The patent transitions from internal installation of anti-seismic devices within building structures to external attachment on the building's outer surface. This dimensional shift allows the anti-seismic device to be mounted on the exterior face of walls without requiring demolition or internal structural modifications, thereby maintaining earthquake resistant strength while eliminating large-scaled construction work and burden on inhabitants.
Solution Approach 2:
The anti-seismic device is divided into multiple independent attachment units that can be separately mounted at different locations on the building's outer surface. Each unit includes its own attaching member and horizontal supporting member, allowing for modular installation that avoids complex large-scaled construction while collectively providing comprehensive earthquake resistance.
2Strength
If outer walls are removed and earthquake resistant walls are installed, then earthquake resistant strength is improved, but construction work becomes invasive and burdensome
Solution Approach 1:
The patent introduces an intermediary external mounting structure consisting of attaching members and horizontal supporting members that mediate between the building's existing outer wall and the anti-seismic device. This intermediary system allows the anti-seismic device to be attached without removing outer walls or performing invasive construction, thereby maintaining ease of operation while achieving improved earthquake resistant strength.
3Ease of operation
If simple construction methods are used, then ease of installation is improved, but earthquake resistant strength becomes insufficient for aged buildings
Solution Approach 1:
The attaching members are designed with pre-formed connection structures and the horizontal supporting members are pre-configured with appropriate spacing and orientation. This preliminary preparation allows for simple, quick installation without complex construction procedures while ensuring that the anti-seismic device achieves sufficient earthquake resistant strength even for aged buildings through proper structural configuration.
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 solution allows for simple, cost-effective, and high-strength earthquake-resistant reinforcement of both wooden and steel structures, reducing the burden on inhabitants and ensuring effective seismic absorption without temperature dependence, suitable for aged buildings and repetitive shocks.
Implementation Method 1
The device can absorb a seismic force acting on the structural frame of a building by plastic bending deformation of the anti-seismic element
Data Source
AI summary
An earthquake resistant reinforcement apparatus of a structure that can be attached simply and conveniently even to an aged building and imposes no substantial burden on inhabitants. The structure has an anti-seismic device for absorbing a seismic energy, an attaching member for attaching the anti-seismic device to the outside of a building, and a horizontal supporting member for supporting the anti-seismic device substantially horizontally. A plurality of attaching members are provided spot-wise to the girder or the beam of an existent building and the horizontal supporting member is a horizontal connection beam for connecting the attaching member horizontally.