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为研究“房桥合一”结构体系在多种动力荷载作用下高架站厅结构的舒适度与传统振动规范的适用性,对某大型客站进行人群、列车荷载下的动力测试,通过现场调查研究了该振动水平下的旅客烦恼反应;基于不同荷载类型与结构跨度,利用已有的考虑了模糊性与随机性的烦恼率模型进行反推计算,建立适合于评价“房桥合一”结构烦恼率的舒适度量化指标.研究结果表明:部分区域振动水平未达到人体感知阀值,实际烦恼率为2%;部分区域振动强度超过70 d B,其理论烦恼率为50%,然而实际烦恼率仍为2%,传统舒适度评价标准并不能准确评价该类新型结构体系.烦恼率模型可以量化任意振动强度下的干扰反应率,给出高架站厅结构的振动限值介于75~90 d B,与ISO规范振动反应描述较为一致,弥补了现行规范关于大跨度“房桥合一”结构舒适度评价的缺失.
In order to study the applicability of “Fangqiao-Yihe” structural system to the comfort of elevated station-hall structure under the action of various dynamic loads and traditional vibration codes, the dynamic test of population and train load of a large passenger station is carried out. Based on the different types of load and the span of the structure, the existing annoyance model considering the ambiguity and randomness is used to perform the back-thrust calculation to establish the suitable model for evaluating the passenger’s distress response under the vibration level. The results show that: the vibration level in some areas does not reach the human perception threshold, the actual worry rate is 2%; the vibration intensity in some areas exceeds 70 d B, the theoretical annoyance rate is 50% However, the actual annoyance rate is still 2%, and the traditional comfort evaluation standard can not accurately evaluate this new type of structure system. The annoyance rate model can quantify the disturbance response rate under any vibration intensity, and gives the vibration limit of overhead station and hall structure between 75 ~ 90 d B, consistent with the description of the ISO standard vibration response, to make up for the lack of evaluation of the structural comfort of the current norms on long-span “bridge and bridge ”.