Three-dimensional shock isolation device with vertical initial stiffness capable of being preset
A technology with initial stiffness and vertical isolation, applied in the direction of earthquake resistance, building components, building types, etc., can solve the problems of reducing the cost of isolation, shortening the effective working length of the spring, inability to stretch and consume energy, and achieve buffer tension. Effects of tensile and compressive shocks, reduced wind and shock costs, and reduced risk of overturning
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example 1
[0040] see figure 1 , the three-dimensional seismic isolation bearing in this example is composed of laminated rubber isolation bearings and vertical isolation bearings connected in series up and down.
[0041] see figure 1 and Figure 4 , the laminated rubber shock-isolation bearing includes an upper connection plate 15, a lower connection plate 8, a laminated rubber pad 17 clamped between the upper and lower connection plates and six tensile steel wire ropes 16; wherein, the upper connection Both the plate 15 and the lower connecting plate 8 are disc-shaped, and the edge of the upper connecting plate 15 is provided with mounting holes 6; the main body of the laminated rubber pad 17 is alternately laminated by a layer of rubber 17-1 and a layer of steel plate 17-2. It is formed by molding vulcanization after being combined, and a rubber protection layer 17-3 is naturally formed around it during the molding vulcanization process. The upper and lower ends of the main body ...
example 2
[0055] see Figure 7-12 , on the basis of example 1, this example has mainly carried out the following improvements: (1) increasing the number of preloaded steel wire ropes 9 from three to six; (3) replace the eyebolt 10 of the other end of the fixed preloaded wire rope 9 with a wire rope self-locking anchorage 18; (4) thicken the middle part of the base 3 and bulge upward to form an inverted washbasin shape, so as to facilitate the installation of the wire rope self-locking anchor. Lock anchor 18; (5) correspondingly change described back pressure device into:
[0056] The back pressure device consists of six preloaded steel wire ropes 9, six U-shaped members 19 as wire rope direction changing elements, a floating back pressure steel plate 11, six eyebolts 10 for fixing one end of the preloaded steel wire ropes 9 and six fixed preloaded steel wire ropes 9. The other end of the steel wire rope 9 is composed of a wire rope self-locking anchorage 18; wherein,
[0057] The floa...
example 3
[0065] see Figures 13 to 17 , this example mainly carries out following improvement on the basis of example 2: (1) replace the U-shaped member 19 as steel wire rope changing element with fixed pulley 20; (2) correspondingly change described back pressure device as:
[0066] The back pressure device consists of four preloaded steel wire ropes 9, four fixed pulleys 20 as wire rope direction changing elements, a floating back pressure steel plate 11, four fixed preloaded steel wire ropes 9, one eye screw 10 and four fixed preloaded wire ropes. The steel wire rope self-locking anchorage 18 of steel wire rope 9 other ends forms. in,
[0067] The floating counter pressure steel plate 11 is arranged between the disc spring group 4 and the base 3;
[0068] Four fixed pulleys 20 as steel wire rope changing elements are fixed symmetrically around the axis of the guide sleeve 1 on the lower surface of the driving platen 7 located in the center hole of the disc spring group 4; wherein,...
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