【摘要】 对采取抗震设防措施的两层空斗砖墙房屋模型进行了振动台试验。通过试验,研究设防房屋在不同地震烈度影响下的破坏形态和破坏程度,并与已完成的未设防房屋模型进行对比,从而较全面地掌握其抗震性能。试验结果表明:设防房屋在6度地震作用下,满足"小震不坏"的要求;在7度和8度地震作用下,满足"中震可修"的要求;在9度地震作用下,满足"大震不倒"的要求。经过与未设防模型在自振频率以及加速度和位移反应等方面的对比分析,设防房屋的抗震性能得到了明显提高。更多还原

【Abstract】 A two-storey model of cavity-wall building with some seismic fortification measures is designed and tested on shaking table.Based on the experiment,the failure mode and destruction degree of this kind of building under different seismic intensity are studied,and the results are compared with non-fortification model in order to obtain its seismic behavior.The test results show that under 6-degree earthquake,the fortification building is not damaged;under 7-degree and 8-degree earthquake,the fortification building is damaged moderately,but it can be still used after restoration;under 9-degree earthquake,the fortification building is damaged seriously,but it is not collapse.Comparison with non-fortification model in natural frequency,acceleration response and displacement response show that the seismic behavior of fortification building is improved.更多还原