竖向地震动对隔震结构高宽比限值的影响分析

Analysis of Effect of Vertical Motion on the Limit Ratio of Height to Width of Base Isolated Structures

分析了竖向地震动对隔震结构的高宽比限值的影响 ,在考虑了场地条件 ,地震烈度的影响情况下 ,推导了隔震结构高宽比限值的简化计算公式 .其公式对计算隔震结构其他因素的影响以及确定所给条件下隔震结构的高宽比限值提供了快速、简便的理论计算方法 .

The effect of vertical component of earthquake motions on the limit ratio of height to width (H/B) of isolated structure is analyzed in consideration of the factors such as sites and intensity of motion. The simplified formula for the calculation of the limit ratio is derived. Conclusions are obtained according to the effecting regulations of the mentioned factors. The simplified formula can be used conveniently to calculate the effect of other factors and the limit ratio of H/B for isolated structures in given conditions. The conclusions from the paper can be referred for isolated structures design and establishment of corresponding codes.