A three-dimensional seismic isolation device capable of adjusting vertical early stiffness
A vertical vibration isolation, three-dimensional technology, applied in the direction of earthquake resistance, building type, building, etc., can solve the problems of reducing the cost of vibration isolation, shortening the effective working length of the spring, deformation of two sets of disc springs, etc., to achieve buffer tension and compression. Impact, reduce the cost of wind resistance and shock resistance, and the effect of small vertical length
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example 1
[0038] see figure 1 , the three-dimensional isolation device in this example consists of laminated rubber isolation bearings and vertical isolation bearings connected in series up and down.
[0039] see figure 1 and Figure 4 , the laminated rubber shock-isolation bearing includes an upper connecting plate 14, a lower connecting plate 15, a laminated rubber pad 17 clamped between the upper and lower connecting plates and six tensile steel cables 16; wherein, the upper Both the connecting plate 14 and the lower connecting plate 15 are disc-shaped, and the edge of the upper connecting plate 14 is provided with mounting holes 13; the main body of the laminated rubber pad 17 is alternately composed of a layer of rubber 17-1 and a layer of steel plate 17-2 After lamination, it is molded and vulcanized, and a rubber protective layer 17-3 is naturally formed around it during the process of molded vulcanization. The upper and lower end surfaces of the main body of the laminated r...
example 2
[0055] This example has the following differences from Example 1:
[0056] see Figures 12 to 14 , the first group of preloaded steel cables 8 and the second group of preloaded steel cables 7 are composed of three preloaded steel cables. The number of the self-locking tensioning anchors 18 for steel cables is six, which are respectively used to fix the other end of each pre-compressed steel cable.
[0057] see Figures 12 to 14 In order to prevent dust and other sundries from falling on the disc spring group 4 and affect the normal operation of the damper, a protective cover 19 of rubber is wrapped on the outside of the back pressure device, and the two ends of the protective cover 19 are connected with the first floating platen respectively. 6 and the outer peripheral surface of the second floating platen 5 are bonded together. The length of the sheath 19 is greater than the distance between the upper surface of the upper end plate 2 and the lower surface of the lower end ...
example 3
[0060] see Figures 15-17 The difference between this example and Example 2 is that the upper end of the guide rod 1 is fixedly connected with the middle part of the lower surface of the upper end plate 2, and the lower end extends downward along the central hole of the disc spring group 4 until it passes through The middle part of the lower end plate 3 protrudes upward; the lower end plate 3 is in dynamic fit with the outer surface of the guide rod 1 . Between the lower surface of the raised middle part of the lower end plate 3 and the lower surface of the edge of the lower end plate 3 is formed a flexible space 11 for the lower end of the guide rod 1 to expand and contract. The first group of preloaded steel cables 8 and the second group of preloaded steel cables 7 are all composed of five preloaded steel cables; Secure the other end of each preloaded cable.
[0061] Other implementations of this example other than the above are the same as Example 2.
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