The disc spring vertical damping device must have a suitable vertical stiffness. Generally, the vertical stiffness of the vertical damping device is about 1/201/50 of the vertical stiffness of the upper structure. Vertical bearing capacity: The vertical isolation device should have a large vertical bearing capacity. Under the normal use of the building structure, it can safely support all the loads of the superstructure and ensure the normal use of the building structure. In addition, since the vertical damper device is to work in cooperation with the horizontal vibration isolation device, the vertical bearing capacity of the vertical damper device is not to be less than the vertical bearing capacity of the lower horizontal vibration isolator. Effective displacement: The effective deformation of all springs is limited. As a disc spring of the vertical isolation device, in addition to the deformation requirements under the vertical use load, sufficient effective displacement should be reserved to meet the deformation requirements under the rare earthquake. At the same time, considering the architectural sense, the vertical deformation joint reserved between the upper structure and the foundation should not be too large, so the dynamic displacement of the device should be controlled within 50mm. Height and diameter: The vertical isolation device is combined with the horizontal isolator to be placed between the superstructure and the foundation. From the perspective of stability and construction feasibility, the height of the damping device should not be too high and the diameter should not be too large. The height of the device should be controlled below 450mm and the diameter should not exceed 115 times of the lower horizontal isolation device.
The vertical damping device of the disc spring is designed according to the design of the axial force and the characteristics of the disc spring. The vertical damping device adopts a large disc spring group in the middle, and several small disc spring groups are arranged on the periphery thereof. And a viscous damping material is filled between the disc spring guide rod and the upper pressure rod to form a viscous damper. According to the stiffness curve obtained by the experiment, the stiffness of the damping device model is 111875kN/mm, which is 115% different from the theoretical value. The typical hysteresis curve of the device with a vibration frequency of 2 Hz can be calculated that the equivalent damping ratio of the device is about 0118, and the energy consumption is good. The test tests the bearing capacity of the vertical damper model. When the vertical deformation is below 75% of the limit stroke, the bearing capacity is about 818% higher than the theoretically calculated design bearing capacity, exceeding 75% of the limit stroke until the spring is pressed. Flat, the bearing capacity of the device always increases linearly, and does not produce unrecoverable deformation under repeated loading. The safety reserve for vertical bearing capacity is very high. The example analysis is to analyze the damping effect of the disc spring vertical damping device. Take a construction example to verify its damping effect by time history analysis method.
PRODUCT NAME:Aluminum Phosphate, Aluminum Metaphosphate ,Potassium Silicate Curing Agent,Aluminum Phosphate Crystal
PRODUCT TYPE:High Temperature Materials, Binder
PRODUCT APPEARANCE:White Powder
CHEMICAL CLASS:AlPO4
CAS No．:7784-30-7.
PRODUCT APPLICATION:It can solidify potassium silicate (other name: potassium water glass) at room temperature. It is mostly used as binder and curing agent in the production of Hi-Temp Refractory Materials for kiln. It also serves as fluxing agent in the production of special glass, as binder in fabrication of ceramics or tooth, and so on.
Aluminum phosphate adhesive has excellent heat-resistance and weather-resistance, not only a widely used adhesive in refractories, it`s also an importantingredient in inorganic coatings(such as powder coating). It also used in the production of siliceous,high-aluminum,magnesian,siliconcarbide and oxides of concrete.
TECHNICAL DATA
|
Test Items |
Technical Parameters |
|
Appearance |
White Powder |
|
The PH Value |
2-4 |
|
Residue on sieve(45um)% |
≤0.5% |
|
P2O5 % |
60-70 |
|
Al2O3 % |
25-35 |
STANDARD PACKAGING: 25kg/bag, Plastic-lined and plastic-coated woven bags or Composite paper bags.
TRANSPORT AND STORAGE
Protect against weathering and exposed under the blazing sun. Store in a cool,dry place and avoid extreme fluctuations in temperature.
Special conditions for opened packaging: Close bags after use to prevent the absorption of moisture and contamination.
Condensed Aluminum Phosphate
Condensed Aluminum Phosphate,Aluminum Phosphate Binder,Aluminum Phosphate White Powder, Refractory Matter Aluminum Phosphate,Aluminum Phosphate Crystal
shijiazhuang city xinsheng chemical co.,ltd , https://www.xsphos.com