ANTISEISMIC SUPPORT Russian patent published in 1997 - IPC

FIELD: supports of building and structures. SUBSTANCE: flexible member located between foundation and above-foundation structure possesses pliability in three coordinate axes; it is filled with buffer liquid. Flexible member is made in form of welded bellows which consists of corrugated radial and circumferential diaphragms and additional diaphragm. One of end main diaphragms is provided with calibrated orifices; this diaphragm is connected with additional diaphragm over outer contour and elastic center forming hermetic chamber. Stiffness of additional diaphragm in radial and axial directions is less than that of main diaphragms. EFFECT: enhanced reliability. 2 dwg