钢结构输煤栈桥的防振设计

摘要

This oaoer analyzed the dynamic characteristics of a tyoical steel structure trestle using structure analysis software SAP2000,and dis-cussed the oossible causes of trestle vibration,aoart from the characteristics of trestle,the belt transmission soeed,suooort bearing soacing was the main factor influence of trestle vibration,at the same time based on this gave the measures control of vibration,namely orooerly adjustment of structure stiffness,so that the structure natural frequency avoid the frequency excitation load.%用结构分析软件SAP2000分析了某典型钢结构栈桥的动力特性，并对可能引起栈桥振动的原因进行了讨论，认为除了栈桥自身的特性外，皮带传输速度、托辊间距是影响栈桥振动的主要原因，同时在分析的基础上给出了控制栈桥振动的措施，即适当调整结构的刚度，从而使得结构的自振频率避开激励荷载的频率。