| abstract |
A. ANTISISMIC DEVICE FOR BUILDINGS SUBJECT TO EARTHQUAKES. B. ANTISISMIC DEVICE CHARACTERIZED IN THAT IT INCLUDES ANTISISMIC SUBSTRATES OF RUBBER TYPE 10 AND SHOCK ABSORBERS 1 ARRANGED IN PARALLEL, THESE ANTISISMIC SUPPORT OF RUBBER TYPE 10 IS SHAPED AS A LAMINATOR, ONE ABOVE THE OTHER, ONE PLURALITY OF HARD RIGID PLATES 11 AND SOFT PANELS 12 WITH VISCO-ELASTIC CHARACTERISTICS, THE DAMPER 1 BEING MAINLY COMPOSED OF A VISCO-ELASTIC MATERIAL HAVING THE PHYSICAL CHARACTERISTICS I AND II DEFINED BELOW. THE HYSTERESIS RATIO (H) IS GREATER THAN 0.2 FOR A TENSILE DEFORMATION OF 50 TO 25. II THE MODULE OF ELASTICITY WITH ACCUMULATION EFFECT E MEASURED DYNAMICALLY AT A FREQUENCY OF 5 HZ, A DEFORMATION OF 0.01 AND A TEMPERATURE OF 25C IS ON THE RANGE OF 9.806 E 19.612 50 PA. C. THE INVENTION ALLOWS TO DAMAGE VIBRATIONS OVER A WIDE FREQUENCY RANGE. |