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介绍了采动区建筑物抗变形隔震装置的基本构成,并基于地震工程学和开采沉陷学的原理对抗变形隔震支座进行了理论分析,通过实验对采动区抗变形隔震支座在低周反复荷载作用下的滞回耗能特性进行了分析。结果显示,在低周循环荷载作用下采动区抗变形隔震支座的滞回耗能曲线饱满,表明其良好的自复位、耗能能力和变形能力大、稳定的滞回性能等特点,说明抗变形隔震支座的传力机制明确、构造比较合理。隔震支座充分利用了铅芯橡胶、粘滞阻尼器和蝶形弹簧三种不同的耗能材料和耗能机制,其适宜的水平隔震刚度和阻尼耗能性能、竖向能够抵抗不均匀沉降,充分体现了其良好的整体稳定性。该抗变形隔震支座有效的改善了采动区建筑抵抗煤矿采动损害和震害的能力,为采动区建筑物保护提供科学方法和依据。
The basic structure of anti-deformation isolation device in mining area is introduced. Based on the theory of seismic engineering and mining subsidence, the deformation isolation bearing is analyzed theoretically. The anti-deformation isolation bearing of mining area The hysteretic energy dissipation under low cyclic loading was analyzed. The results show that the hysteretic energy dissipation curve of the anti-deformation isolation bearing in the mining area is full under the action of low-cycle cyclic loading, indicating that it has good self-resetting, large energy dissipation and deformation capacity and stable hysteresis. It shows that the transmission mechanism of anti-deformation isolation bearing is clear and its structure is reasonable. The isolation bearings make full use of three different energy-consuming materials and energy-dissipating mechanisms, such as lead rubber, viscous damper and butterfly spring. The suitable horizontal isolation stiffness and damping energy dissipation performance can resist vertical unevenness Subsidence, fully reflects its good overall stability. The anti-deformation isolation bearing effectively improves the ability of the mining area construction to resist the mining damage and earthquake damage of the coal mine and provides a scientific method and basis for building protection in the mining area.