日本橋梁工業 List of Products and Services

The "DIA Free Joint" is a bridge expansion joint device that excels not only in safety and soundproofing during operation but also in ease of installation and maintenance, as well as cost-effectiveness. It consists of a separation structure made up of three components: a receiving base attached to the deck, a receiving plate installed on top of the receiving base, and a surface rubber with numerous diamond-shaped holes. Although these components are separate, they function together as a cohesive unit, demonstrating excellent performance. Additionally, it flexibly responds to various conditions at each site and is designed to minimize noise and debris during repair work, taking environmental considerations into account. 【Features】 ■ Protects the deck ■ Comfortable driving ■ Safe driving ■ Environmentally friendly ■ Cost reduction ■ Compatible with both pre-installation and post-installation methods *For more details, please download the PDF or feel free to contact us.

• Bridge Materials

The "DIA Free Joint Side Joint K-210" is a bridge expansion joint device installed at right angles or diagonally to the bridge axis (the direction of vehicle travel). In recent years, bridges with wide spans have been designed considering displacements during earthquakes, and this device is suitable for accommodating those wide spans and for repairs of finger joints. Additionally, the surface rubber has sufficient thickness, and the load-bearing plates are coated with rubber on steel plates, which helps to mitigate impact loads and reduces the effects on the deck slab. 【Features】 ■ Protects the deck slab ■ Comfortable driving ■ Safe driving ■ Environmentally friendly ■ Cost reduction ■ Compatible with both pre-installed and retrofitted methods *For more details, please download the PDF or feel free to contact us.

• Bridge Materials

The "DIA Free Joint" is an expansion joint for bridges that excels in durability and water-tightness, and is easy to install due to its simple structure and lightweight design. The surface shape is "tooth-shaped," while the back shape is "linear," allowing concrete to be filled up to the edge of the deck slab, further enhancing durability by integrating with the deck slab. In addition to enhancing water-tightness with a male-female structure at the rubber ends, the adhesive surface between the steel plate and rubber has been increased to prevent "rubber peeling," achieving a longer lifespan. 【Features】 ■ Excellent durability ■ Difficult for rubber to peel off ■ Ensures water-tightness ■ Lightweight with a simple structure ■ Good workability *For more details, please request materials or view the PDF data from the download section.

• Foundation construction

Ruts cause a step difference between the expansion joint section and the cast-in-place concrete and asphalt pavement, negatively affecting the expansion joint section. This is the most suitable road repair material used to correct this step difference. 【Features】 ○ It can beautifully correct the step difference with cast-in-place concrete and ruts. ● For other functions and details, please contact us.

• Reinforcement and repair materials