Three-dimensional shock insulation device capable of adjusting vertical initial stiffness
A technology of initial stiffness and vertical seismic isolation, applied in the direction of earthquake resistance, building components, building types, etc., can solve the problems of shortened effective working length of springs, deformation of two sets of disc springs, and reduced isolation costs, so as to reduce wind resistance Anti-vibration cost, small vertical length, effect of suppressing shaking
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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
[0061] see Figures 12 to 15 , 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) correspondingly changing the described back pressure device into:
[0062] 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 one fixed preloaded steel wire rope 9. The other end of the steel wire rope 9 is composed of a wire rope self-locking tensioning anchorage 18; wherein,
[0063] The floating anti-pressure steel plate 11 is arranged between the cylindrical helical compression spring 4 and the base 3;
[0064] Six U-shaped members 19 serving as wire rope redirection elements are symmetrically fixed on the driving platen 7 around the axis of the guide sleeve 1; see Figure...
example 3
[0069] see Figure 16-20 , this example has mainly carried out the following improvements on the basis of example 1: (1) replace the eyebolt 10 as the wire rope changing element with the fixed pulley 20; (2) change the described back pressure device accordingly to :
[0070] The anti-pressure device consists of four pre-compressed steel wire ropes 9, four fixed pulleys 20 as wire rope direction changing elements, a floating counter-pressure steel plate 11, four eyebolts 10 for fixing one end of the pre-compressed steel wire ropes 9 and one fixed pre-compressed steel wire rope 9. The other end of the steel wire rope 9 is composed of a wire rope self-locking tensioning anchor; wherein,
[0071] The floating anti-pressure steel plate 11 is arranged between the cylindrical helical compression spring 4 and the base 3;
[0072] Four fixed pulleys 20 as steel wire rope changing elements fix the lower surface of the driving platen 7 symmetrically around the axis of the guide sleeve ...
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