摘要
为研究桥面铺装层内部剪应力分布情况,结合T梁结构特点,建立温度场有限元模型,并分析不同的荷载位置以及温度变化对桥面铺装层受力的影响.结果表明:对于不同的荷载作用位置,纵桥向剪应力为主要控制指标;T梁的结构特点是影响不同位置荷载作用下铺装层应力变化的主要因素;在温度-荷载耦合作用下,铺装层竖向剪应力随温度的升高而减小,竖向剪应力峰值出现在荷载作用区域外围;铺装层层间剪应力主要集中在下面层与桥面板间,并随温度的升高而增大,但在低温时,铺装层层间剪应力会出现激增现象.
In order to study the internal shear stress distribution of the bridge deck pavement,combining the characteristics of the T-beam structure,a finite element model of the temperature field is established,and the effects of different load locations and temperature changes on the force of the bridge deck pavement are analyzed.The results show that:for different loading positions,the longitudinal shear stress of the longitudinal bridge is the main control index;the structural characteristics of the T-beam are the main factors that affect the stress changes of the pavement under different position loads;under the temperature-load coupling effect,the pavement The vertical shear stress of the pavement layer decreases with the increase of temperature,and the peak value of the vertical shear stress appears at the periphery of the load area;the value of the shear stress between the pavement layers is mainly concentrated between the lower layer and the bridge deck.As the temperature increases,the shear stress between the pavement layers will increase sharply at low temperatures.
作者
王虎
陈翔
王雅
WANG Hu;CHEN Xiang;WANG Ya(School of Science,Chang'an University,Xi'an 710064,China)
出处
《徐州工程学院学报（自然科学版）》
CAS
2020年第1期32-36,共5页
Journal of Xuzhou Institute of Technology(Natural Sciences Edition)
基金
国家自然科学基金项目(11702033)。
关键词
桥梁工程
桥面铺装层
T梁
温度场
有限元分析
剪应力
bridge engineering
deck pavement
T-beam
temperature field
finite element analysis
shear stress
