GFRP桥面板截面设计与结构分析  

SECTION DESIGN AND STRUCTURE ANALYSIS OF GFRP BRIDGE DECK

作　　者：周林云[1] 万水[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《玻璃钢／复合材料》2011年第5期41-44,共4页Fiber Reinforced Plastics/Composites

基　　金：国家自然科学基金(50878048;50978055);国家863科技计划项目(2006AA11Z103);河北省交通运输厅科技重点项目(Y-060136)

摘　　要：为减小GFRP桥面板在荷载作用下的局部挠度,在原有GFRP桥面板的芯管中增加一个腹板。对改进后的GFRP桥面板进行参数分析,研究新增腹板厚度和倒角半径对GFRP桥面板力学性能的影响。分析结果表明,随着新增腹板厚度的增加,改进后GFRP桥面板的整体挠度和局部挠度逐渐减小,首层破坏荷载逐渐增大。但新增腹板厚度大于8mm时,改进后的GFRP桥面板的整体挠度和局部挠度减小的趋势逐渐变缓。新增腹板倒角半径对改进后GFRP桥面板的挠度影响很小,首层破坏荷载随着倒角半径的增大先增大后减小。To reduce the local deflection of GFRP bridge deck under load,adding a web in the original GFRP bridge deck＇s core tube.In this paper,based on this improved bridge deck,applying to different parameters analysis to study its mechanical properties.The result shows that with the increase of the adding-web＇s thickness,both total deflection and local deflection of the melioration bridge deck are gradually decreased,and the first ply failure load is on the increase.However,after the adding-web＇s thickness is greater than 8mm,the dropping trend becomes smoothly.The fillet radius of newly added web has a little effect on the deflection of the melioration bridge deck,and the first ply failure load first increased and then decreased with the increase of fillet radius.

关 键 词：GFRP桥面板 参数分析 力学特性 有限元法 

分 类 号：TB332[一般工业技术—材料科学与工程]