Product Features:

• Piston-type dampers with a pipe filled with viscous fluid. When the piston is moved in the pipe, the fluid is squeezed through pores to produce a hysteresis damping force, so that the energy dissipates
• The speed-dependent energy dissipation deviceshave a 90 ° phase between the structure force and damper force, so that it will not increase the maximum force in the structure. Not being rigid, it will not increase the structural rigidity so as not to increase the structural seismic force due to a structural cyclic decrease. The damper can effectively reduce the structural response (displacement, velocity, acceleration).
• It effectively absorbs the energy from external forces (wind, earthquake), so that the structure deformation can be controlled
• The passive damper provides economy, stability, and high efficiency all without maintenance. Visual inspection is needed only about once every five yearsto determine its external damage.
• In order to fulfil the requirements, we work with the customer from the start, through to design, planning, construction and installation.
• Structure can be installed more flexible, with respect to traditional steel reinforcement or thickening installation of bracing.
• Because it is, easy to install and does not affect the lighting or ventilation, the construction period is short. and row move line.

1. A passive energy dissipation devices in the wind or a small earthquake, the damper has sufficient initial stiffness, the structure has sufficient resistance to lateral forces, in order to meet the demand for the use of buildings; when there is strong wind or in a large earthquake, with increasing the amount of displacement of the structure, the damper can be converted to bits momentum again converted to heat, in order to ensure the safety of the main structure in the strong wind or earthquake.
2. Belongs to speed-dependent type of energy dissipation device can effectively reduce the displacement the speed and the acceleration of the structure.
3.  High economic stability, energy dissipation effect and without maintenance (approximately five years to check the appearance of the damper)
4. According to current situation and demand to planning and construction.
5. It is dry-type construction, short construction period, quick to install, does not affect the lighting, ventilation and moving lines.
6. Hysteresis loops is full , so that it can reduce structural damage from seismic force.

Photos

Diagram

Curve Graph:

A. New Construction - Chiayi Crown Jewels

Construct structure - four underground floors; five upper floors; the building is an SC structure.

“Seismic time history displacement” Figure

The Blue Line indicates the displacement after the damper was installed.

The Red line is the displacement before the damper was installed.

Displacement is reduced by 22.5%

“Seismic time history acceleration” Figure

The Blue Line indicates the acceleration after the damper was installed

The Red line indicates the acceleration before the damper was installed.

Seismic capacity increased by 32.4%.

B. Reinforcement Construction – “the Plan of Cultural Park of Northern Da-tung” Set Labor Cultural Park landscape improvement turnkey project 

Constructional structure - Four upper floors; the building is an RC structure

“Seismic time history displacement” Figure

The Blue Line indicates the displacement after the installation of the damper, and the red line indicates the displacement before the installation of the damper.

Displacement is reduced by 69%

“Seismic time history acceleration” Figure

The Blue Line indicates the acceleration after the installation of the damper, and the red line indicates the acceleration before the installation of the damper.

Seismic capacity increased by 50%.

Features:

1. with full-hysteresis loop graph. Structural damage caused by seismic force can be reduced significantly.

2. Special imported steel alloy significantly increases design capacity.

3. Takes up little indoor space after installation.

4. Products weigh little, are small in size, and are easy to install.

5. Products can be usedin new construction as well as existing structures.

1. Damping can effectively reduce the acceleration of seismic force generated on the structure, thereby reducing the degree of shaking significantly; Stiffness can effectively reduce the displacement of seismic forces generated on the structure; Exterior walls are therefor less susceptible to cracking; The possibility of leaks occurring is reduced.
2. When an earthquake occur, the structural dislocation between floors causes the damper to generate shear deformation. The seismic energy causes friction of the metal, which is converted into heat energy resulting in energy dissipation.
3. With full-hysteresis loop graph. Structural damage caused by the seismic force can be reduced significantly.
4. Special imported steel alloy products are small in size, light in weight, and easy to install.

Analysis diagram

Portfolio complete diagram

Now constructs changes with each new day, all kinds of collections of beauty, art, creativity and engineering science and technology to create new century building that have sprung up everywhere. Show the exquisite technology.However, these tall, large-span or a cantilevered beam structure, susceptible to wind 、seismic forces or other special disturbance. Tuned mass damper (Tuned Mass Damper is called TMD), provides the most effective resistance excitation system. A variety of design configurations, and to follow the actual environment customized amended to meet the construction needs of the most economical.

Tuned mass damper (Tuned Mass Damper is called TMD), which consists of a mass, a spring and a damper attached to the different structure by Supported or suspended.

The theory of TMD was used the main structural which installed small mass、spring、damper to change that dynamic characteristic. TMD has been used to reduce the dynamic responses of structures under strong environmental loads which transferring the vibration energy from the structure into the TMD. TMD can reduce vibration when TMD Vibration frequency tune the same with main structural to resonance. Promote the structural safe and Comfort  

When structure vibration frequency and TMD itself vibration frequency same. The TMD for mitigating structural vibration using a TMD involves transferring the vibration energy from the structure into the TMD, which dissipates this energy through the damping effect. Vibrational structure becomes small, but the vibration of TMD (displacement) will enlarge. So we want to install some extra vibration dampers to dissipate the energy of TMD. Like the door upload as many as those damper. Because the damper force is applied to the door.So the door will "slowly" closed

The TAIPEI 101 wind damper is actually one kind of the tuned mass damper (TMD) under simple pendulum system. Vibration period determined by adjusting the length of the pendulum (It has nothing to do with the weight on the pendulum).The longer the pendulum’s length, the longer vibration period it is, and vice versa .Since skyscraper usually has longer vibration period, TMD’s length of the pendulum must long enough to be adjusted tune the construction.

service process

Large-scale civil engineering structures are costly and the life cycle of the structures is longer than decades, even centuries. The strength of structures will be reduced because of environmental erosion, materials Aging, long - term effects of load, etc., that will causes to reduce to the disaster resistance of the structures.。

Installing the Structure Identification System in the important structures and recording the damage degree of the structures is significant for making the strategic decision detection about detection or reinforcement of the structures.

The components of Structure identification System:

The Structure identification System is combined with data transmission and data collectionelements, the software of damage identification and reliability prediction, and the remote control system. The Structure identification System consists of sensors, data capture processing and storage system, structural safety evaluation system, long-distance transmission system, and remote control and data management system.

Structure Identification System:

The main advantage is that using low frequency six-axis accelerometers with big-data database to effectively collect and analyze data by the procedure for filtering and FFT, and save data in the control center, conducing to data analysis and safety assessment in the future.

The applications of Structure Identification System:

The analysis after the earthquake and abnormal warning about slope, bridge, factory building, machine, tunnel, building.