A mechanism that absorbs energy and reduces cross-sectional forces! Applicable to both new bridges and seismic reinforcement of existing bridges.
The "Dampers Brace" is a steel damper developed with the aim of absorbing seismic energy, featuring an axial yield type design. The core material is restrained by components that prevent buckling during axial compression, allowing for stable repeated plastic deformation in both tension and compression directions, which results in high hysteretic damping performance. This hysteretic damping absorbs seismic energy. It is possible to significantly reduce the forces acting on the main components of bridges. By adopting this product, the necessary seismic performance can be achieved efficiently and economically compared to conventional seismic reinforcement designs. 【Features】 - The reduction in seismic countermeasure weight can significantly lower manufacturing costs and vertical reactions, making it economical. - It can reduce the horizontal seismic reactions from the superstructure to the substructure. - It allows for a smaller scale of substructures, which is economical. - It is applicable to both new bridges and seismic reinforcement of existing bridges. *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Structure】 ■ Cross core material: Absorbs seismic energy through plastic deformation due to axial force Py. ■ Intermediate material: A component that connects the damper sections at both ends. ■ Buckling restraint tube: Restrains the buckling of the cross core material, achieving a similar hysteresis during compression as during tension. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Adoption Results (Partial) as of December 2021】 <Number of Adopted Projects / Number of Adoptions> ■Arch Bridges ・Ministry of Land, Infrastructure, Transport and Tourism: 9 projects / 272 adoptions ・Local Governments, Expressway Companies, etc.: 14 projects / 380 adoptions ■Ramen Bridges ・Ministry of Land, Infrastructure, Transport and Tourism: 5 projects / 86 adoptions ・Local Governments, Expressway Companies, etc.: 12 projects / 168 adoptions ■Truss Bridges ・Ministry of Land, Infrastructure, Transport and Tourism: 2 projects / 16 adoptions ・Local Governments, Expressway Companies, etc.: 3 projects / 48 adoptions *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Our company is a comprehensive engineering firm specializing in steel structure products, starting with bridge projects. With advanced technology and extensive experience cultivated over many years, we respond to our customers' needs through the design, construction, and maintenance of bridges and steel structures, providing high-quality social infrastructure. Please feel free to contact us if you have any inquiries.
