人行激励下大跨度钢结构连廊舒适度分析

Comfort Analysis of Long- span Steel Corridor Stimulated by Pedestrian

针对大跨度钢结构连廊的特点,采用有限元和自编程序相结合的方法,模拟不同工况,单人、多人有序和随机人群荷载模式,计算该结构的自振特性和动力加速度响应,并进行了不同工况下结构舒适度评价。结果表明,人行荷载频率的影响最大,其次是荷载类型、人群同步概率及人群的集度。

Dynamic response and human comfort were studied using finite element software combining with self- compiling program for long - span steel corridor under different pedestrian load conditions. The load models sim- ulating single person walking, regular or random crowd walking were developed to cacultate self - vibration char- acteristics of the structure and dynamic acceleration response, and evaluate comfort of the structure under differ- ent conditions. The results showed that among all the factors affecting dynamic response, step frequency is the most significant, the next ones are load model, probability of pedestrian synchronization and crowd Aensitv.