Using high-strength PC steel rods to minimize the diameter and the weight and volume of hardware!
A tie-down system called "Rodman" that responds to the pull-out forces of high-strength shear walls in mid- to high-rise wooden buildings. In mid- to high-rise wooden structures, massive pull-out forces accumulate in the lower levels due to horizontal forces such as seismic forces. Attempting to counteract this significant uplift with existing hold-down hardware often necessitates custom, oversized, or multiple placements of hardware, leading to issues such as severe cross-section damage to the wood and poor fitting. "Rodman" is a new original tie-down system developed to smartly address these non-standard pull-out forces and ensure the stability of shear walls in mid- to high-rise construction. [Features and Benefits in Structural Design (Partial)] ■ Improvement in fitting due to miniaturization of hardware on each floor By directly transmitting the pull-out forces from each floor to the foundation, the hardware can be significantly miniaturized. This minimizes cross-section damage to the wood and enhances fitting flexibility. *For detailed product specifications and design manuals, please contact us. *For more information, please download the PDF or feel free to reach out to us.
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【Features and Benefits of Other Structural Designs】 ■ Overwhelming High Strength with High-Strength PC Steel Rods By adopting high-strength PC steel rods, we achieve an overwhelming pull-out force (ultimate strength) of up to 360kN with a thin rod diameter, and approximately 700kN for the entire system. ■ Reliable Shrinkage Follow-Up with "Spring Couplers" In response to the unique drying shrinkage of wooden structures and gradual settling over time, the spring can follow up by up to 10mm. This prevents loosening of the rods and maintains safety over a long period. * For detailed product specifications and design manuals, please contact us. * For more information, please download the PDF or feel free to contact us.
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Mitsui Home Co., Ltd.'s Wood and Building Materials Division was established on April 1, 2023, as the new business division of Mitsui Home, a leading company in the two-by-four construction method. By developing technology as a wood structure fabricator and systematizing processes from design to material delivery, we expand the possibilities of two-by-four construction and play a key role in the Mitsui Home Group. While positioning the provision of high-quality and reliable building materials as our core business, we will accelerate the expansion of new businesses and the strengthening of services. We will provide materials for large-scale fire-resistant buildings and facility-type structures using the two-by-four method, such as three-story wooden apartment buildings, nursing care facilities, warehouses, and livestock barns. We will enhance our renovation and condominium-related businesses by leveraging synergies with group companies and utilize the networks gained from these initiatives to challenge new business opportunities.
