摘要
近年来,由于轻质高强材料的使用,大跨空间结构的刚度变得很小,而导致结构的自振频率很低,容易与人的步频（1.5～2.5Hz）产生共振,从而引起舒适度问题.本文以河北师范大学体育馆的张弦梁结构为工程背景,研究张弦梁结构的楼盖在人致荷载作用下引起的舒适度问题,采用美国AISC-Ⅱ标准进行舒适度评价.在多种荷载工况下对楼板进行激励,并以最不利荷载工况为基础,采用TMD参数调整法进行调谐质量阻尼器（TMD）参数的设计,来达到减振控制的目的.
In recent years,the stiffness of large spatial reticulated structures become weak due to the use of lightweight and high strength material.So that natural vibration frequency of the structure is very low.It＇s prone to produce resonance with the pace of people（1.5 ～ 2.5Hz）and cause problems about comfort.Taking a beam string structure of the gymnasium in the Hebei Normal University as an example.The comfort problems caused by the personal-induced load of the structure were researched based on the American AISC-Ⅱ standards for evaluating.And then the incentive was carried out on the floor under a variety of load conditions.At last,the TMD parameters adjustment method was adopted to improve the tuned mass damper （TMD） parameters for design to achieve the goal of reducing vibration control under the most unfavorable load condition.
出处
《低温建筑技术》
2014年第3期49-52,共4页
Low Temperature Architecture Technology
