センクシア List of Products and Services

When an earthquake occurs, loads are applied to the columns and beams of buildings. By installing Extendum, it yields and absorbs the energy during an earthquake. This reduces the load on the columns and beams and suppresses the shaking caused by the earthquake. 【Features】 ○ Compact with excellent deformation performance ○ Various installation methods available ○ Diverse product variations ○ High cost performance ○ High durability 【Product Lineup】 Plastic deformation height 150mm type: 4 variations 200mm type: 4 variations 250mm type: 4 variations Total of 12 variations 【Specifications】 ○ Applicable range: Suitable for S structures, RC structures, and SRC structures ○ Performance evaluation: Performance evaluation by Japan ERI Co., Ltd. Design and performance evaluation: Evaluation report number: ERI-K15002 (acquired in July 2015)

The High Builder Dam is a passive hydraulic damping damper that generates damping force using the fluid resistance of oil, absorbing the vibrations of buildings. It is effective across a wide range, from major earthquakes to wind sway, and is adopted in various buildings from skyscrapers to low-rise structures, contributing to improved seismic resistance and livability. 【Features】 - The relationship between damping force and velocity is bi-linear, preventing excessive loads on the building structure during major earthquakes. - The variation in damping performance due to changes in frequency from earthquakes and temperature is minimal. - The structure minimizes mechanical clearance, providing stable damping performance even for small amplitude vibrations such as wind sway and minor earthquakes. - High durability is achieved through the use of seals and operating oil with little aging change. - Simple installation with high-strength bolt connections. - Usable without replacement even after an earthquake. - Internal oil level can be checked with an oil level monitoring rod (optional). - Installed between studs, eliminating the need for braces like shear link or diagonal braces, allowing for effective use of space. - Joint shape suitable for stud installation, achieving a total length of 885mm. - New stud type 1000kN added to the lineup.

The SRC Super High Base Method has been significantly improved from the conventional SRC High Base Method to adapt to an environment where the transformation of building technology, such as amendments to the Building Standards Act, standardization of new construction steel materials, and performance-based structural design, has become remarkable, requiring higher levels of technology and quality control. In May 2000, it received ministerial certification as the SRC Super High Base Method, and further adapted to subsequent legal amendments, obtaining certification from the Minister of Land, Infrastructure, Transport and Tourism in March 2002. The SRC Super High Base Method supports new earthquake-resistant construction with a product variation that pursues functionality and cost-effectiveness based on extensive experience. For more details, please download the catalog.

In order to meet the diversifying needs of users, we have conducted extensive research and currently offer three types of foundation construction methods: High Base Eco(R) method, Super High Base(R) method, and SRC Super High Base method.

The construction method allows for the reduction of the size of upper floor columns compared to lower floor columns without using tapered columns in the panel zone, utilizing a through diaphragm method. Since general straight steel pipes can be used for the panel section, a simple design is possible. Additionally, it enables a reduction in construction time due to decreased processing man-hours. 【Features】 ■ Labor-saving in the production of panel zones ■ Reduction of steel fabrication man-hours and shortening of construction periods ■ Compatible with middle columns, side columns, and corner columns ■ Applicable to brace connections ■ Expansion of column size reduction dimensions for upper and lower floor columns up to 150mm ■ Usable with a variety of column materials *For more details, please refer to the PDF materials or feel free to contact us.

- It is possible to enhance the strength of the pile head joint and reduce the number of reinforcement bars at the pile head joint. - It can minimize interference with the reinforcement of the superstructure. - The anchorage length of the fixed anchor can be shortened. The performance has been verified through full-scale experiments, and the construction method has received evaluation from the Japan Architectural Center (a public interest incorporated foundation), while the materials have been certified by the Minister of Land, Infrastructure, Transport and Tourism. Copies of the evaluation report from the Japan Architectural Center and the certification from the Minister of Land, Infrastructure, Transport and Tourism can be downloaded from the Senkushia website. *For more details, please download the PDF materials or feel free to contact us.

The conventional method for reinforcing through-holes in steel beams typically involves sleeve reinforcement or plate reinforcement. These reinforcement methods lack established evaluation criteria and conventionally restrict the diameter and position of the through-holes, resulting in limited flexibility in equipment planning. The High Ring III method has established strength evaluation formulas for the through-hole sections, allowing for the relaxation of restrictions on the diameter and position of the through-holes, thereby increasing flexibility in equipment planning. Additionally, by standardizing high rings and streamlining steel fabrication, it achieves cost reduction and shortened construction periods. This method has been validated through full-scale experiments and FEM analysis, and has received certification from the Minister of Land, Infrastructure, Transport and Tourism (Certification Numbers MSTL-0234, 0451, 0477, 0480, 0515) as well as evaluation from the Japan Building Center (BCJ Evaluation ST0095-09).

The "Smart Fit Method" is a construction technique suitable for seismic reinforcement of factories and warehouses built to the old seismic standards. In the previous Smart Fit Method, welding work was required when installing reinforcement columns, but with this refinement, it is now possible to perform work without welding when the existing structure's columns are H-beams. Additionally, we have achieved an improvement in the toughness index (F value) at the column base. 【Features】 ■ No-welding method No welding is achieved only when the existing columns are H-shaped steel. ■ Ensured productivity Construction can be carried out without stopping production (varies depending on construction conditions). ■ Low cost Total cost reduction is possible compared to conventional methods (example). ■ Space-saving The projection of columns is about one-third compared to conventional methods (example). ■ Shortened construction period A reduction of about 40% in the construction period is possible compared to conventional methods (varies depending on construction conditions). ■ Reliable performance Obtained BCJ certification - 283. *For more details, please contact us or download the catalog to view.

In the "High Base Method," which is the main product of Senkushia, there has been a challenge where, in the design of factories and warehouses, cases where braces are attached to columns sometimes result in insufficient shear resistance depending on the conditions. We have been working on solving this issue. As a result, with this product, even in cases where braces are attached to columns, it has become possible to transmit the shear force from the braces acting on the base plate to the foundation by adopting the "Shear Cutter High Base Method." 【Features】 ■ Adoption of base plates with shear cutters ■ Established design methods for column base types and V-brace types (special types) ■ Obtained evaluation from the Japan Building Center and certification from the Minister of Land, Infrastructure, Transport and Tourism *For more details, please download the materials or contact us.

The Posiring method is a construction technique that reinforces through-holes provided in steel beams. The "Posiring method" being released this time is a product developed specifically for small to medium-sized projects with many through-holes of φ300 or less, focusing on reducing welding volume and improving workability for labor-saving purposes. 【Features】 ■ No need for marking and flipping the beams. This can shorten the manufacturing time of the steel structure. By inserting the protrusion to align with the lower hole, positioning can be achieved, allowing the marking work to be omitted. Additionally, since flipping the beams is not necessary, the manufacturing time of the steel structure can be reduced. ■ Construction is possible with fillet welding. Welding volume can be reduced. The installation is completed by performing fillet welding around the entire circumference of the Posiring. Therefore, after assembly welding, it can be smoothly installed without the need for flipping the beams. ■ It has obtained evaluation from the Japan Building Center. The structural performance and workability have been evaluated based on full-scale experiments and analyses, receiving certification from the Japan Building Center (a public interest incorporated foundation). *For more details, please request materials or view the PDF data available for download.

The "Smart Chronos II Method" is a no-welding vertical brace connection method developed with the concepts of "no welding," "improved construction efficiency," and "shortened construction period" in mind. The selection of applicable brace sizes is easy due to the existing column sizes and the positions of the connection points. Since welding work on-site is unnecessary, it reduces the risk of fire. Additionally, the connecting beams ensure the connection's load-bearing capacity and reduce shear stress at the column base. It has obtained the construction technology review certification from the Japan Building Center. 【Features】 ■ Reduced fire risk through no welding ■ Shortened construction period ■ Reduced total costs ■ Simplified design process ■ Obtained construction technology review certification (BCJ) *For more details, please refer to the PDF materials or feel free to contact us.

This design guidebook is intended for architectural design offices, construction companies, and steel processing contractors to use safely and effectively when designing and managing buildings using the High Base NEO Method LB Type. Please refer to the "High Base NEO Method Super High Base Method Eccentric Type Design Handbook" in conjunction with this document. Additionally, for points to consider during construction, please also refer to the separate "High Base Method Comprehensive Catalog." [Contents] ■ Overview of the High Base NEO Method LB Type ■ Materials used for the High Base NEO Method LB Type ■ Design of the column base ■ Strength diagrams and foundation column design examples ■ Construction of the High Base NEO Method LB Type ■ Evaluation reports, certification documents, and design support materials for the High Base NEO Method LB Type *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "High Base NEO Method <High Strength Column Applicable Type>." A new type has been added (BCJ Evaluation ST0059-08), expanding the application range to high strength columns (such as UBCR365 and JBCR385). Using our design support software, you can import result data calculated with a consistent structural calculation software to examine the column base and determine the amount of rebar for the foundation column shape (Zones I and II). 【Components】 ■ Base Plate ■ Anchor Bolt ■ Eco Nut ■ Nut ■ Washer ■ Fixing Plate *For more details, please download the PDF or feel free to contact us.