方形组合式钢丝绳隔震器静刚度试验研究

作者研制了一种新型方形组合式钢丝绳隔震器。该种隔震器由4个条形夹具夹持16根普通镀锌钢丝绳组合而成,从结构形式上保证了水平刚度对称。经过多次垂直向循环静力加卸载试验,运用Origin 7.0软件对实验数据进行分析处理,绘制出该种隔震器的静力特性曲线,并分别与目前防护工程中采用的条形不锈钢钢丝绳隔震器、鼓形钢丝绳隔震器的静力特性曲线进行了比较。试验结果表明,方形组合式钢丝绳隔震器不但具有初始刚度大、软特性明显、阻尼大、加工简便、性价比高等优点,而且克服了条形不锈钢钢丝绳隔震器价格高、水平刚度不相同和鼓形钢丝绳隔震器加工复杂的不足,在今后的防护工程隔震技术中有良好的应用前景。

Experimental Study on Static Rigidity of Steel Rope Isolator of Square Assembly

A new type of steel rope isolator of square assembly is studied in this paper with 4 strip clips clamping 16 common zinc-coated steel ropes to ensure the symmetry of horizontal rigidity in structural form. Several vertically static cycle loading tests were carried out with Origin 7.0 for the analysis of the testing data and the plot of static characteristic curves of the isolator, which were compared with those of the strip-shape stainless steel rope isolator and the drum-shape steel rope isolator. The results show that the new isolator not only has excellent performance of higher initial rigidity, better softening characteristics, larger frictional damping and higher cost-performance ratio, but also has conquered the disadvantage of high price, unequal rigidity in horizontal direction of the strip-shape stainless steel rope isolator and the complicated machining of the drum-shape isolator. The new isolator will have good application in the isolation of blast ground shock and vibration in future protective engineering.