A reduction of approximately 79% in process time is possible compared to conventional construction methods! [Technical materials including construction achievements are currently being distributed.]
In recent years, the installation of anti-fall devices and similar measures in seismic reinforcement work for existing bridges has been increasing. For the bracket fixing method on RC structures, adhesive post-installed anchor bolts are used, with epoxy resin-based adhesives being commonly employed. However, challenges include long curing times, failure to cure at low temperatures below 5°C, and poor adhesion on wet surfaces. To address these issues, we have developed an adhesive post-installed anchor using "acrylic resin," called "NR Anchor" and "R Anchor." (The "R Anchor" is a removable anchor bolt.) By using acrylic resin, it is possible to achieve approximately a 79% reduction in process time compared to conventional methods. ■□ We are providing technical materials that include construction achievements! □■ 【Contents (excerpt)】 - About acrylic resin - Performance verification tests - Construction achievements ■□ For more details, we will contact you from the manufacturing company of the R Anchor, "Sanpo Co., Ltd." □■ *For more details, please inquire or refer to the catalog. We recommend reading the "R Anchor" and "NR Anchor" catalogs together.
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basic information
【Introduction of Some Construction Achievements】 1. Bantan Expressway Road Maintenance and Repair Work (Seismic Reinforcement Work for Rakugaike Bridge) Location of Use: R anchors used for fixing bolts of brackets for bearing replacement Client: Hyogo Prefectural Road Corporation 2. Shinetsu Line North Nagaoka - Oshikiri Inaba Bo New Installation (Phase 2) Work Location of Use: R anchors used for bolts of temporary fixing jigs during bearing fixation Client: Kenedaka Corporation (Former Client: East Japan Railway Company) ■□ For detailed information, please contact the manufacturer of R anchors, Sanpo Co., Ltd.! □■ *For more details, please refer to the catalog or feel free to contact us.
Price information
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Delivery Time
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Applications/Examples of results
【Purpose】 ■ Bridge reinforcement work, etc. *For more details, please refer to the catalog or feel free to contact us.
Detailed information
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Table of Contents This is the table of contents for the technical documentation.
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Challenges of Epoxy Resin-Based Adhesives Issues with commonly used epoxy resin-based adhesives.
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Planned usage areas for NR anchors They can be used in the same way as in conventional locations, such as for bridge collapse prevention devices.
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Planned usage areas for R anchors Since they can be extracted, they are recommended for use in areas that will be removed after the use of temporary structures, etc.
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Comparison of Epoxy Resin and Acrylic Resin We are introducing performance verification tests. Please download for more details.
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Construction of R anchors This is the state of construction of R anchors.
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Company information
Komai Haltec Co., Ltd. has built a position as a manufacturer that has been involved in the production and construction of steel structures such as bridges and steel frames for many years, supplying safe and high-quality products. Moving forward, we will make the most of our management resources, starting with our main factories in the Kanto and Kansai regions, aiming for efficient business operations that harness our technological capabilities. We will conduct our management with awareness and responsibility as a company that plays a part in the development of social infrastructure through our bridge business, steel frame business, and environmental business.