东南大学学报（自然科学版）2012，Vol.42Issue(4)：729-733,5.DOI:10.3969/j.issn.1001-0505.2012.04.029
整桥—温度—重载耦合作用下钢桥面黏结层力学分析
Mechanical analysis of waterproof bonding layer on steel bridge deck under bridge-temperature-load coupling effect
摘要
Abstract
The whole bridge model and the pavement calculation system based on the composite solid element theory are built. Firstly, the forces and deformations of main beam in the whole bridge model and the temperature fields of local steel box girder are analyzed. Then, the mechanical responses of the waterproof bonding layer under heavy loads, whole bridge stress fields and sunshine temperature fields are respectively calculated. The results show that under the effect of whole bridge stress fields, the waterproof bonding layer mainly recieves transverse maximum interlaminar shear stress in the local steel box girder subjected to torsion and longitudinal interlaminar shear stress in the box girder subjected to moment and axis forces. Besides, the transverse maximum interlaminar shear stress of the waterproof bonding layer is larger than the longitudinal maximum interlaminar shear stress under the heavy loads and temperature fields and is linear with the load quantity. Based on the concept of contribution rate, the contribution of whole bridge stress field, sunshine temperature field and vehicle load to interlaminar shear stress are analyzed. The vehicle load's contribution to the maximum transverse interlaminar shear stress is only 80. 1 % while its contribution to the longitudinal maximum interlaminar shear stress is 89. 3%.关键词
钢桥面铺装/防水黏结层/有限单元法/复合材料层合板单元/整桥—温度—重载耦合作用Key words
steel bridge deck pavement/ waterproof bonding layer/ finite element method/ composite layer element/ bridge-temperature-load coupling effect分类
交通工程引用本文复制引用
钱振东,刘龑..整桥—温度—重载耦合作用下钢桥面黏结层力学分析[J].东南大学学报（自然科学版）,2012,42(4):729-733,5.基金项目
"十一五"国家科技支撑计划资助项目(2009BAG15B03)、新世纪优秀人才计划资助项目(NCET-08-0118). （2009BAG15B03）
