【摘要】 利用已有的建立在心理物理学方法之上的烦恼率模型以及传统的人行桥振动舒适度评价标准,建立适合于评估人行桥振动烦恼率的舒适度量化指标,提出了考虑人行桥竖向与侧向耦合振动时的综合评价方法,弥补了传统的关于人行桥振动舒适度评价方法的不足。通过模拟人行随机荷载激励对人行桥进行了人致振动时程分析并对其舒适度进行了评价,给出可行的减振措施并预测减振效果。这对今后人行桥人行荷载模拟、人行桥振动舒适度评价以及防振减振研究都具有参考借鉴意义。更多还原

【Abstract】 Based on the existing annoyance rate method from mental physics and traditional criteria for comfort evaluation,a new annoyance rate method for footbridges and a comprehensive evaluation method considering coupling between vertical and lateral vibration are proposed,they remedies the traditional criteria for comfort evaluation of footbridges.The time histories of the response of an existing footbridge are given under the simulated stochastic pedestrian loads and its comfort evaluation is also performed using the proposed method.The appropriate vibration reduction measures are given and their effects are predicted.更多还原