Abstract: With the help of displacement calculus of variations,the joint displacement formula for bath elastic and Burger's materials are obtained under different constraint conditions.The result shows that joint displacement is greatly affected by constraint conditions and joint width.Thus,the determination of joint width should be calculated by jointly considering the joint construction conditions.The results of this paper are of referential values for joint design and construction of both bridge deck and other kinds of pavement.

Key words: cement pavement, joint, displacement, calculus of variation, viscoelasticity

摘要： 本文采用位移交分原理,求得了水泥路面接缝不同约束时的位移公式,并得到了填料为Burgers体时的位移解.计算表明,约束条件及缝宽对接缝位移有较大影响,必须结合施工条件由计算确定缝宽.本文结果也可供桥面及其它种类路面接缝的设计和施工时参考.

关键词: 水泥路面, 接缝, 位移, 粘弹性