华东交通大学学报2017，Vol.34Issue(2)：1-9,9.
基于粗糙集的传力杆接缝水泥道面力学响应影响因素分析
Analysis of Influencing Factors of Mechanical Response in Cement Concrete Airport Pavement with Doweled Joint Based on Rough Set
摘要
Abstract
This work investigated the influence factor of structural responses on concrete pavement with doweled joints and optimize dowel bars system. Dowel bar size, spacing, offset, supporting and bounding modulus were e-valuated, as well as the finite element simulation results which include stress of concrete slabs, stress load transfer efficiency (LTEσ)and internal force of dowel bars. Rough set algorithm method was utilized to compute the significance of condition attributes and the membership of decision attributes. The resalts showed that:(1) The dowel bar horizontal angle is the most significant factor on the maximum tensile stress of the pavements. Stress on the bottom of the slab increases with the angle increases.(2) LTEσis mostly sensitive to bars' vertical offset and LTEσincreases as the dowel bars are approaching the bottom of slab. (3) The dowel bars spacing has considerable influence on all mechanical responses. Excessive spacing will result in poor properties of pave-ments.关键词
道路工程/因素分析/粗糙集/传力杆接缝/力学响应Key words
road engineering/factor analysis/rough set/doweled joint/mechanical response分类
交通工程引用本文复制引用
袁捷,王宇翔..基于粗糙集的传力杆接缝水泥道面力学响应影响因素分析[J].华东交通大学学报,2017,34(2):1-9,9.基金项目
国家自然科学基金(51678444) （51678444）
