Figure 6-2 shows an older medical office building, which had a vertical irregularity that caused one floor to pancake during the 1994 Northridge earthquake in Southern California;
图表6-2显示，一栋陈旧的医用办公大楼存在竖向不规则问题，1994年南加利福尼亚的一场北岭地震导致这层大楼的一层楼面全部塌陷。
It is a complex super high-rise building with many unfavourable factors, including irregular plane, vertical irregularity, multi-towers with large chassis, and high-level transfer.
存在平面不规则、竖向不规则、大底盘多塔楼和高位转换等超限情况，属于复杂高层建筑结构。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
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