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中文摘要：
本文通过对方形多铅芯橡胶支座竖向压缩性能试验,水平剪切性能试验以及其等效刚度、屈服强度、屈服后刚度、等效阻尼比等水平特征参数与水平剪切应变和竖向压应力的关系,特别是对其在不同方向上压缩剪切变形状态下的性能试验,分析了这种隔震支座各种水平特征参数在不同方向上变化的相关规律.得出在这种类型橡胶隔震支座在双向水平荷载同时作用下,竖向性能和水平性能较为稳定,是较为理想的桥梁结构的减隔震装置.
英文摘要：
In this paper, vertical compressive property and horizontal shear property test and relation of horizontal property parameters（ including equivalent stiffness, yield strength, post-yield stiffness and equivalent damping） and horizontal shear strain ＆ vertical compressive stress , especially multi-directional shear-compression state tests of square multi-lead rubber bearing are accomplished. The laws of horizontal properties parameters of this rubber isolator in different directions are obtained. The vertical and horizontal property of square multi-lead rubber isolators are stable under bidirectional horizontal simultaneous effect. This isolator is a good seismic isolation device for bridge.
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