Product
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
Sinotech Engineering Consultants, Inc. (Sinotech Inc.) has independently developed and manufactured the "Domestically-Produced Fluid Viscous Damper (FVD)" and a variety of other Anti-Seismic Equipment.
Given the increasing demand for seismic energy dissipation components commonly used in new structural construction and reinforcement, Sinotech Inc. resolutely embarked on the development of a "domestically-produced Fluid Viscous Damper (FVD)" to provide a selection of high-quality, Taiwan-made products and technical services. After years of dedicated effort by the R&D team, Sinotech has successfully developed multiple specifications of dampers and a variety of anti-seismic/vibration control devices for use in both bridge and building engineering projects. The entire production process, from parts machining and assembly to quality control and testing, utilizes local Taiwanese manufacturing. The products have undergone numerous performance tests by certified laboratories, ensuring product quality and protecting consumer interests. These products are now widely applied in various public works and private construction projects and have received unanimous affirmation from project owners.
Sinotech's Anti-seismic Equipment product line includes the following four types: Fluid Viscous Damper(FVD) Shock Transmission Unit(STU) Steel Damping Wall (SDW) Steel Damping Brace(SDB) Sinotech can provide the optimal seismic mitigation plan based on the project's structural type and prevention strategy.
Velocity-Dependent Dampers: Fluid Viscous Damper (FVD), Shock Transmission Unit (STU)
- Sinotech's dampers feature stable output and performance that exceeds both domestic and international code requirements.
- Customized services can be provided to meet special performance requirements.
- Ball joints are available as an option to ensure effectiveness under minor earthquakes and wind loads.
- Metal spray coating can be applied to provide excellent corrosion protection.
- Sinotech’s dampers exhibit minimal susceptibility to environmental temperature changes and possess high performance stability, significantly enhancing application reliability.
Displacement-Dependent Dampers: Steel Damper Wall (SDW), Steel Damping Brace (SDB)
- Sinotech's damping walls and damping braces exhibit stable output and high ductility, with performance exceeding both domestic and international code requirements.
- They provide structural stiffness during minor earthquakes and absorb seismic energy during major earthquakes.
- Optimized manufacturing process and simple installation result in low application costs and high overall cost-effectiveness.
- Sinotech’s damping walls utilize the post-yield characteristics of steel plate materials to provide structures with additional stiffness and damping ratio.
Efficient Monitoring System(EMS)
- Integration of anti-seismic performance and product experience to implement intelligent management and control.
- Customizable user interface, complete system architecture, and easy operation.
- IoT Application: Real-time data display, historical data query, and backup.
Fluid Viscous Damper(FVD)
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
The Sinotech Fluid Viscous Damper (FVD) significantly increases the structural damping ratio and energy dissipation efficiency without affecting structural stiffness. It simultaneously absorbs vibrations caused by earthquakes and wind, effectively improving the overall comfort of the building.
Device Features
Mechanism
At the core of our technology lies the fluid viscous damper, a sophisticated device designed to dissipate kinetic energy and reduce vibration. Its seamless construction features a specialized piston within an oil cylinder. In the event of an earthquake, the piston within our fluid viscous damper swings into action, converting the building’s movement into thermal energy. This process signifi¬cantly diminishes the forces transmitted through the structure, thereby lessening the potential for damage and improving the building's seismic resilience. The output force of FVD can be evaluated using the following equation:
The Fluid Viscous Damper (FVD) therefore possesses the following properties:
The Fluid Viscous Damper (FVD) therefore possesses the following properties:
- They're non-rigid, meaning they don't alter the natural period of the structures.
- Their damping forces are synchronized with velocity and offset by 90 degrees from displacement, providing optimal energy dissipation.
- The key to their performance lies in their customizable C and α values, allowing for superior nonlinear energy dissipation when α< is less than 1, even with consistent design damping forces.
Product Highlights
- Superior Performance: Our dampers are precision-engineered to surpass design expectations, achieving consistency well beyond industry standards.
- Unmatched Durability: Crafted with exceptional quality, our dampers require no maintenance throughout their extensive lifespan.
- Effective Vibration Control: Our dampers can be installed easily, they swiftly enhance structural damping, ensuring immediate seismic and vibrational mitigation.
- Simplified Analysis: With a well-defined dynamic damping force equation, our products streamline the process of dynamic simulation and analysis.
Experimental Performance
All Fluid Viscous Damper products have successfully passed the physical and performance assurance tests conducted by certified laboratories, exceeding both domestic and international code standards and demonstrating outstanding design results.
Shock Transmission Unit(STU)
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
The Sinotech Shock Transmission Unit (STU) provides an additional dynamic constraint connection to the structures at both ends. It can form a rigid link and provide a lock-up force the instant the structure is subjected to a load greater than the service load, effectively dispersing forces between the structures.
Device Features
Mechanism
The Shock Transmission Unit (STU) is a velocity- dependent lock-up device, operating like a velocity-triggered rigid link. It is divided into the following two states based on the nature of the load:
- Low-Speed Load: When the structure is subjected to a low-speed load (such as service load or temperature load), the Shock Transmission Unit (STU) provides a force less than 10% of the design force, which can be disregarded in actual structural analysis.
- Dynamic Load: When the structure is subjected to a dynamic load (such as earthquake, wind, or train movement), the Shock Transmission Unit (STU) instantly provides the rated design force to lock up the structures at both ends, effectively changing the overall structural behavior under stress.
Product Highlights
- High Performance: The device provides the rated design force within an extremely short stroke after reaching the lock-up velocity, with performance far superior to code requirements.
- High Quality: Confirmed through hydraulic and overload tests, the product is of excellent quality, maintaining stable performance over long-term use with no oil leakage.
- Low Impact: When the lock-up velocity is not reached, the force output is less than 10% of the design force, complying with code standards and not affecting the structure's original design.
- Corrosion Resistance: The exterior of the device can be fully protected with metal spray coating and has passed salt spray testing, ensuring no corrosion in outdoor installations.
Testing Performance
The Shock Transmission Unit (STU) product conforms to AASHTO testing standards and has passed tests conducted by certified and accredited laboratories, guaranteeing its operation meets the designed performance effectiveness.
Steel Damping Wall(SDW)
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
The Sinotech Steel Damping Wall primarily enhances the structure's stiffness and ductility. During minor earthquakes, it controls the story lateral displacement, and during major earthquakes, it increases the structural damping ratio through metal yielding, effectively absorbing seismic energy.
Device Features
Mechanism
The Steel Damping Wall is a displacement-type seismic energy dissipation device. Its fundamental principle leverages the stress-strain behavior inherent in the steel plate material to provide additional stiffness and damping ratio to the structure. Carefully designed, this product exhibits the following characteristics primarily when in operation:
- The Steel Damping Wall, yet to yield, provides additional stiffness and strength to the structure based on Hooke's Law in its dynamic behavior. This effectively suppresses the overall structural displacement, reducing the probability of cracking and the need for renovations
- Large Displacement / Major Earthquake: The core steel plate of the Steel Damping Wall undergoes full-section plastic yield, utilizing the post-yield plastic hysteresis behavior to dissipate seismic energy, ensuring the safety of both the building and occupants.
Product Highlights
- High Performance: The unique design incorporates an energy dissipation mechanism, designed through theoretical analysis and verified by testing, to meet real-world requirements. The products have been tested by certified laboratories.
- High Stability: Job variability is below the specification requirements due to the stabilized manufacturing process and outstanding assembly quality.
- High Cost-Effectiveness：With optimized process and easy product installation, the application cost are low, resulting in overall high efficiency.
- High Safety: Designed with multiple energy-dissipating unit and non-immediate destruction mode, to extend the post-seismic repair and replacement time.
Experimental Performance
Steel Damping Wall has passed certification examinations conducted by accredited laboratories, ensuring that the product quality meets specification and design requirements.
Steel Damping Brace(SDB)
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
SINOTECH Inc.’s Steel Damping Brace (SDB) is a structural anti-seismic and energy dissipation component. It can effectively dissipate seismic energy, reduce displacement, and minimize seismic forces. Sinotech SDB also possesses high stiffness, high ductility, and excellent dissipation performance characteristics.
Device Features
Mechanism
The Steel Damping Brace restricts inter-story displacement and axial deformation of brace caused by earthquakes to concentrate on the “energy-dissipating core section” enabling the section to yield and dissipate seismic energy through its strain capacity, while the brace section’s buckling-restrained behavior is well-considered.
Product Highlights
- Easy to Install: The structural strength design and construction method are the same as traditional concentric braces, ensuring easy installation.
- Customization: The energy-dissipating core section undergoes special design, allowing for precise strength control and easy adjustment, facilitating alignment with design requirements.
- Stabilization: Sinotech SDB exhibits ductility during severe seismic damage, directing plastic deformation to the energy-dissipating core section to protect the main components and maintain overall structural stability.
- Safety: Designed with multiple energy-dissipating units, it avoids instantaneous failure, allowing for a shorter replacement time after a severe earthquake.
- Technology: Monitoring devices can be utilized to track the SDB status and evaluate the necessity of maintenance after a severe earthquake.
Experimental Performance
The Steel Damping Brace had passed performance experiment in qualified laboratories ensuring that the quality meets specified standards and design requirements.
FVD Effective Monitoring System(EMS)
System Features
Operating Principle
The Monitoring System developed by Sinotech involves installing force-sensing components on the dampers and integrating an Internet of Things (IoT) design architecture. This allows monitoring data to be automatically and instantaneously transmitted back to the monitoring computer, enabling users to check the damper's force output status in real time and query historical data for seismic events, thereby achieving the goal of damper smartization.
Sinotech Mechanical Vibration Laboratory
連絡資訊
886-2-87919198 #226
ycchen@sinotech.org.tw
In 2006, Sinotech, Inc. was accredited by the Taiwan Accreditation Foundation (TAF), becoming a TAF-certified laboratory. In addition to advanced indoor and on-site geotechnical testing equipment, a mechanical laboratory for vibration was established in Luzhu, Taoyuan in 2020. The laboratory features an uniaxial high-speed dynamic testing machine equipped with customized fixtures, dedicated to testing seismic energy dissipation devices and various vibration mitigation devices.
Testing Equipment and Specs
