详情

Probabilistic Wind Speed Model for Local Data at All Counties in Kansas

项目名称：	Probabilistic Wind Speed Model for Local Data at All Counties in Kansas
摘要：	The Kansas Department of Transportation (KDOT) has around 450 older aluminum and steel truss structures that support highway signs and traffic signals. These structures are made of cantilevered, butterfly and non-cantilevered configurations with a number of fatigue-prone details. It is very important to examine such structures to evaluate their performance with time in terms of remaining fatigue life. Of special interest is to perform modeling, analysis and structural assessment that reveal nominal stress range levels needed to determine if the components/connection will have pseudo-infinite life and if not estimate their approximate remaining life. Another issue of interest is to guide the inspectors to look for critical spots that may have developed fatigue cracks that otherwise would have been difficult to detect. The PI has successfully completed and delivered a software that predicts the remaining fatigue life for non-cantilevered sign trusses. The software has been applied by KDOT showing that it is capable of predicting existing fatigue cracks in such ancillary structures. On the other hand, the principal inspector (PI) is currently working on a follow up project to develop a software to predict the remaining fatigue life of steel cantilever and butterfly sign structures. However, the current deterministic wind model is limited to data between 1975 and 2019. This wind model will soon be outdated and will not be possible to extend into the future. In addition, the wind data in these two studies are limited to 8 cities inside Kansas and do not lend themselves to be applicable to local counties in the entire state.
状态：	Active
资金：	39908
资助组织：	Kansas Department of Transportation
项目负责人：	Peterson, Karen
执行机构：	Kansas State University Transportation Center
开始时间：	20200809
预计完成日期：	20210908
主题领域：	Bridges and other structures；Highways；Maintenance and Preservation